diff --git a/shadowsocksr-libev/Makefile b/shadowsocksr-libev/Makefile index 841a2ce58..3a20fe4f7 100644 --- a/shadowsocksr-libev/Makefile +++ b/shadowsocksr-libev/Makefile @@ -8,20 +8,14 @@ include $(TOPDIR)/rules.mk PKG_NAME:=shadowsocksr-libev PKG_VERSION:=2.5.6 -PKG_RELEASE:=3 - -PKG_SOURCE_PROTO:=git -PKG_SOURCE_URL:=https://github.com/shadowsocksrr/shadowsocksr-libev -PKG_SOURCE_DATE:=2018-03-07 -PKG_SOURCE_VERSION:=d63ff863800a5645aca4309d5dd5962bd1e95543 -PKG_MIRROR_HASH:=skip +PKG_RELEASE:=4 PKG_LICENSE:=GPL-3.0 PKG_LICENSE_FILES:=LICENSE PKG_FIXUP:=autoreconf PKG_USE_MIPS16:=0 -PKG_BUILD_FLAGS:=no-mips16 +PKG_BUILD_FLAGS:=no-mips16 gc-sections lto PKG_BUILD_PARALLEL:=1 PKG_INSTALL:=1 @@ -57,8 +51,7 @@ CONFIGURE_ARGS += \ --disable-assert \ --enable-system-shared-lib -TARGET_CFLAGS += -flto -TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed +TARGET_LDFLAGS += -Wl,--as-needed $(foreach component,$(SHADOWSOCKSR_COMPONENTS), \ $(eval $(call BuildPackage,shadowsocksr-libev-ssr-$(component))) \ diff --git a/shadowsocksr-libev/patches/0001-Add-ss-server-and-ss-check.patch b/shadowsocksr-libev/patches/0001-Add-ss-server-and-ss-check.patch index 290ede540..d2a2c7691 100644 --- a/shadowsocksr-libev/patches/0001-Add-ss-server-and-ss-check.patch +++ b/shadowsocksr-libev/patches/0001-Add-ss-server-and-ss-check.patch @@ -1,13 +1,3 @@ ---- a/.gitignore -+++ b/.gitignore -@@ -2,6 +2,7 @@ build/ - .deps/ - /Makefile - src/Makefile -+server/Makefile - libev/Makefile - libudns/Makefile - libcork/Makefile --- a/Makefile.am +++ b/Makefile.am @@ -1,7 +1,7 @@ diff --git a/shadowsocksr-libev/patches/101-Fix-Werror-sizeof-pointer-memaccess.patch b/shadowsocksr-libev/patches/101-Fix-Werror-sizeof-pointer-memaccess.patch index 1db501aab..673d0ef1e 100644 --- a/shadowsocksr-libev/patches/101-Fix-Werror-sizeof-pointer-memaccess.patch +++ b/shadowsocksr-libev/patches/101-Fix-Werror-sizeof-pointer-memaccess.patch @@ -1,11 +1,11 @@ --- a/src/local.c +++ b/src/local.c @@ -718,7 +718,7 @@ server_recv_cb(EV_P_ ev_io *w, int reven - - ss_free(hostname); - } else { -- strncpy(host, ip, sizeof(ip)); -+ strncpy(host, ip, INET6_ADDRSTRLEN); - } - } - + + ss_free(hostname); + } else { +- strncpy(host, ip, sizeof(ip)); ++ strncpy(host, ip, INET6_ADDRSTRLEN); + } + } + diff --git a/shadowsocksr-libev/patches/106-fix-severity-security.patch b/shadowsocksr-libev/patches/106-fix-severity-security.patch new file mode 100644 index 000000000..718847174 --- /dev/null +++ b/shadowsocksr-libev/patches/106-fix-severity-security.patch @@ -0,0 +1,21 @@ +--- a/libev/ev.c ++++ b/libev/ev.c +@@ -1946,7 +1946,7 @@ static void * noinline ecb_cold + array_realloc (int elem, void *base, int *cur, int cnt) + { + *cur = array_nextsize (elem, *cur, cnt); +- return ev_realloc (base, elem * *cur); ++ return ev_realloc (base, (size_t)elem * (size_t)*cur); + } + + #define array_init_zero(base,count) \ +@@ -4252,7 +4252,8 @@ infy_add (EV_P_ ev_stat *w) + if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) + { + char path [4096]; +- strcpy (path, w->path); ++ strncpy (path, w->path, sizeof (path) - 1); ++ path [sizeof (path) - 1] = 0; + + do + { diff --git a/shadowsocksr-libev/src/AUTHORS b/shadowsocksr-libev/src/AUTHORS new file mode 100644 index 000000000..b63b5f139 --- /dev/null +++ b/shadowsocksr-libev/src/AUTHORS @@ -0,0 +1,9 @@ +Shadowsocks-libev was originally created in late 2013, by +Clowwindy , then rewritten and maintained by +Max Lv . + +Here is an inevitably incomplete list of MUCH-APPRECIATED CONTRIBUTORS -- +people who have submitted patches, fixed bugs, added translations, and +generally made shadowsocks-libev that much better: + +https://github.com/shadowsocks/shadowsocks-libev/graphs/contributors diff --git a/shadowsocksr-libev/src/CMakeLists.txt b/shadowsocksr-libev/src/CMakeLists.txt new file mode 100644 index 000000000..fef83872d --- /dev/null +++ b/shadowsocksr-libev/src/CMakeLists.txt @@ -0,0 +1,37 @@ +# -*- coding: utf-8 -*- +# ---------------------------------------------------------------------- +# Copyright © 2011-2015, RedJack, LLC. +# All rights reserved. +# +# Please see the COPYING file in this distribution for license details. +# ---------------------------------------------------------------------- + +set(CMAKE_LEGACY_CYGWIN_WIN32 0) + +cmake_minimum_required(VERSION 2.6) +set(PROJECT_NAME shadowsocks-libev) +set(RELEASE_DATE 2015-09-03) +project(${PROJECT_NAME}) + +set(VERSION 2.5.6) + + +set(with_crypto_library "openssl" CACHE STRING "build with the given crypto library, TYPE=openssl|polarssl|mbedtls default=openssl") + + + +include ( cmake/dist.cmake ) +include ( configure ) + +configure_file ( ${CMAKE_CURRENT_SOURCE_DIR}/config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config.h ) + +add_subdirectory(libsodium) +add_subdirectory(libcork) +add_subdirectory(libipset) +add_subdirectory(libev) + + +include_directories( ${CMAKE_CURRENT_BINARY_DIR} ) + +add_subdirectory(libudns) +add_subdirectory(src) diff --git a/shadowsocksr-libev/src/COPYING b/shadowsocksr-libev/src/COPYING new file mode 100644 index 000000000..7660015da --- /dev/null +++ b/shadowsocksr-libev/src/COPYING @@ -0,0 +1,12 @@ +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . diff --git a/shadowsocksr-libev/src/Changes b/shadowsocksr-libev/src/Changes new file mode 100644 index 000000000..7a4e44891 --- /dev/null +++ b/shadowsocksr-libev/src/Changes @@ -0,0 +1,399 @@ +shadowsocks-libev (2.5.6-1) unstable; urgency=medium + + * Add outbound ACL for server. + * Refine log format. + + -- Max Lv Tue, 01 Nov 2016 09:51:52 +0800 + +shadowsocks-libev (2.5.5-1) unstable; urgency=medium + + * Refine attack detection. + + -- Max Lv Tue, 11 Oct 2016 15:45:09 +0800 + +shadowsocks-libev (2.5.4-1) unstable; urgency=medium + + * Fix a bug of auto blocking mechanism. + + -- Max Lv Sun, 09 Oct 2016 19:36:37 +0800 + +shadowsocks-libev (2.5.3-1) unstable; urgency=medium + + * Fix TCP Fast Open on macOS. + + -- Max Lv Wed, 21 Sep 2016 19:31:57 +0800 + +shadowsocks-libev (2.5.2-1) unstable; urgency=medium + + * Fix a bug of UDP relay mode of ss-local. + + -- Max Lv Mon, 12 Sep 2016 12:54:33 +0800 + +shadowsocks-libev (2.5.1-1) unstable; urgency=medium + + * Refine ACL feature with hostname support. + * Add HTTP/SNI parser for ss-local/ss-redir. + + -- Max Lv Sat, 10 Sep 2016 17:06:49 +0800 + +shadowsocks-libev (2.5.0-1) unstable; urgency=medium + + * Fix several bugs of the command line interface. + * Add aes-128/192/256-ctr ciphers. + * Add option MTU for UDP relay. + * Add MultiPath TCP support. + + -- Max Lv Mon, 29 Aug 2016 13:07:51 +0800 + +shadowsocks-libev (2.4.8-1) unstable; urgency=low + + * Update manual pages with asciidoc. + * Fix issues of bind_address option. + + -- Max Lv Wed, 20 Jul 2016 09:25:50 +0800 + +shadowsocks-libev (2.4.7-1) unstable; urgency=low + + * Add ss-nat, a helper script to set up NAT rules for ss-redir. + * Fix several issues for debian package. + + -- Max Lv Wed, 1 Jun 2016 18:21:45 +0800 + +shadowsocks-libev (2.4.6-1) unstable; urgency=low + + * Update manual pages. + + -- Max Lv Thu, 21 Apr 2016 17:33:34 +0800 + +shadowsocks-libev (2.4.5-1) unstable; urgency=low + + * Fix build issues on OpenWRT. + * Reduce the latency of redir mode. + + -- Max Lv Mon, 01 Feb 2016 13:22:50 +0800 + +shadowsocks-libev (2.4.4-1) unstable; urgency=low + + * Fix a potential memory leak. + * Fix some compiler related issues. + + -- Max Lv Wed, 13 Jan 2016 11:50:12 +0800 + +shadowsocks-libev (2.4.3-1) unstable; urgency=high + + * Refine the buffer allocation. + + -- Max Lv Sat, 19 Dec 2015 12:30:21 +0900 + +shadowsocks-libev (2.4.1-1) unstable; urgency=high + + * Fix a security bug. + + -- Max Lv Thu, 29 Oct 2015 15:42:47 +0900 + +shadowsocks-libev (2.4.0-1) unstable; urgency=low + + * Update the one-time authentication + + -- Max Lv Thu, 24 Sep 2015 14:11:05 +0900 + +shadowsocks-libev (2.3.3-1) unstable; urgency=low + + * Refine the onetime authentication of header. + * Enforce CRC16 on the payload. + + -- Max Lv Fri, 18 Sep 2015 10:38:21 +0900 + +shadowsocks-libev (2.3.2-1) unstable; urgency=low + + * Fix minor issues of build scripts. + + -- Max Lv Sun, 13 Sep 2015 15:22:28 +0900 + +shadowsocks-libev (2.3.1-1) unstable; urgency=low + + * Fix an issue of connection cache of UDP relay. + * Add support of onetime authentication for header verification. + + -- Max Lv Fri, 04 Sep 2015 07:54:02 +0900 + +shadowsocks-libev (2.3.0-1) unstable; urgency=low + + * Add manager mode to support multi-user and traffic stat. + * Fix a build issue on OS X El Capitan. + + -- Max Lv Thu, 30 Jul 2015 17:30:43 +0900 + +shadowsocks-libev (2.2.3-1) unstable; urgency=high + + * Fix the multiple UDP source port issue. + * Allow working in UDP only mode. + + -- Max Lv Sat, 11 Jul 2015 08:31:02 +0900 + +shadowsocks-libev (2.2.2-1) unstable; urgency=low + + * Fix the timer of UDP relay. + * Check name_len in the header. + + -- Max Lv Mon, 15 Jun 2015 10:26:40 +0900 + +shadowsocks-libev (2.2.1-1) unstable; urgency=low + + * Fix an issue of UDP relay. + + -- Max Lv Sun, 10 May 2015 21:23:44 +0900 + +shadowsocks-libev (2.2.0-1) unstable; urgency=low + + * Add TPROXY support in redir mode. + + -- Max Lv Mon, 04 May 2015 02:44:17 -0300 + +shadowsocks-libev (2.1.4-1) unstable; urgency=low + + * Fix a bug of server mode ACL. + + -- Max Lv Sun, 08 Feb 2015 20:24:43 +0900 + +shadowsocks-libev (2.1.3-1) unstable; urgency=low + + * Add ACL support to remote server. + + -- Max Lv Sun, 08 Feb 2015 10:59:44 +0900 + +shadowsocks-libev (2.1.2-1) unstable; urgency=low + + * Refine multiple port binding. + + -- Max Lv Sat, 31 Jan 2015 18:56:25 +0900 + +shadowsocks-libev (2.1.1-1) unstable; urgency=low + + * Fix a memory leak. + + -- Max Lv Wed, 21 Jan 2015 21:40:58 +0900 + +shadowsocks-libev (2.1.0-1) unstable; urgency=low + + * Fix a bug of tunnel mode. + + -- Max Lv Mon, 19 Jan 2015 09:59:52 +0900 + +shadowsocks-libev (2.0.8-1) unstable; urgency=low + + * Fix a bug of IPv6. + + -- Max Lv Fri, 16 Jan 2015 10:58:12 +0900 + +shadowsocks-libev (2.0.7-1) unstable; urgency=low + + * Fix some performance issue. + + -- Max Lv Tue, 13 Jan 2015 13:17:58 +0900 + +shadowsocks-libev (2.0.6-1) unstable; urgency=high + + * Fix a critical issue in redir mode. + + -- Max Lv Mon, 12 Jan 2015 21:51:19 +0900 + +shadowsocks-libev (2.0.5-1) unstable; urgency=low + + * Refine local, tunnel, and redir modes. + + -- Max Lv Mon, 12 Jan 2015 12:39:05 +0800 + +shadowsocks-libev (2.0.4-1) unstable; urgency=low + + * Fix building issues with MinGW32. + + -- Max Lv Sun, 11 Jan 2015 13:33:31 +0900 + +shadowsocks-libev (2.0.3-1) unstable; urgency=high + + * Fix some issues. + + -- Max Lv Sat, 10 Jan 2015 16:27:54 +0800 + +shadowsocks-libev (2.0.2-1) unstable; urgency=low + + * Fix issues with MinGW. + + -- Max Lv Sat, 10 Jan 2015 15:17:10 +0800 + +shadowsocks-libev (2.0.1-1) unstable; urgency=low + + * Implement a real asynchronous DNS resolver. + + -- Max Lv Sat, 10 Jan 2015 10:04:28 +0800 + +shadowsocks-libev (1.6.4-1) unstable; urgency=low + + * Update documents. + + -- Max Lv Wed, 07 Jan 2015 21:48:58 +0900 + +shadowsocks-libev (1.6.3-1) unstable; urgency=low + + * Refine ss-redir. + + -- Max Lv Sun, 04 Jan 2015 19:23:52 +0900 + +shadowsocks-libev (1.6.2-1) unstable; urgency=low + + * Fix some build issues. + + -- Max Lv Tue, 30 Dec 2014 10:30:28 +0800 + +shadowsocks-libev (1.6.1-1) unstable; urgency=high + + * Add salsa20 and chacha20 support. + + -- Max Lv Sat, 13 Dec 2014 15:11:34 +0800 + +shadowsocks-libev (1.6.0-1) unstable; urgency=low + + * Solve conflicts with other shadowsocks portings. + + -- Max Lv Mon, 17 Nov 2014 14:10:21 +0800 + +shadowsocks-libev (1.5.3-2) unstable; urgency=low + + * rename as shadowsocks-libev. + + -- Symeon Huang Sat, 15 Nov 2014 14:55:28 +0000 + +shadowsocks (1.5.3-1) unstable; urgency=low + + * Fix log on Win32. + + -- Max Lv Fri, 14 Nov 2014 09:10:06 +0800 + +shadowsocks (1.5.2-1) unstable; urgency=low + + * Handle SIGTERM and SIGKILL nicely. + + -- Max Lv Tue, 12 Nov 2014 13:11:29 +0800 + +shadowsocks (1.5.1-1) unstable; urgency=low + + * Fix a bug of tcp fast open. + + -- Max Lv Sat, 08 Nov 2014 19:45:37 +0900 + +shadowsocks (1.5.0-1) unstable; urgency=low + + * Support to build static or shared library. + * Supprot IPv6 NAT in redirect mode. + * Refine the cache size of UDPRelay. + + -- Max Lv Fri, 07 Nov 2014 09:33:19 +0800 + +shadowsocks (1.4.8-1) unstable; urgency=low + + * Fix a bug of tcp fast open. + + -- Max Lv Wed, 08 Oct 2014 18:02:02 +0800 + +shadowsocks (1.4.7-1) unstable; urgency=low + + * Add a new encryptor rc4-md5. + + -- Max Lv Tue, 09 Sep 2014 07:50:10 +0800 + +shadowsocks (1.4.6-1) unstable; urgency=low + + * Add ACL support. + + -- Max Lv Sat, 03 May 2014 04:37:10 -0400 + +shadowsocks (1.4.5-1) unstable; urgency=high + + * Fix the compatibility issue of udprelay. + * Enhance asyncns to reduce the latency. + * Add TCP_FASTOPEN support. + + -- Max Lv Sun, 20 Apr 2014 08:12:45 +0800 + +shadowsocks (1.4.4-1) unstable; urgency=low + + * Add CommonCrypto support for darwin. + * Fix some config related issues. + + -- Max Lv Wed, 26 Mar 2014 13:29:03 +0800 + +shadowsocks (1.4.3-1) unstable; urgency=low + + * Add tunnel mode with local port forwarding feature. + + -- Max Lv Fri, 21 Feb 2014 11:52:13 +0900 + +shadowsocks (1.4.2-1) unstable; urgency=high + + * Fix the UDP relay issues. + * Add syslog support. + + -- Max Lv Sun, 05 Jan 2014 10:05:29 +0900 + +shadowsocks (1.4.1-1) unstable; urgency=low + + * Add multi-port support. + * Add PolarSSL support by @linusyang. + + -- Max Lv Tue, 12 Nov 2013 03:57:21 +0000 + +shadowsocks (1.4.0-1) unstable; urgency=low + + * Add standard socks5 udp support. + + -- Max Lv Sun, 08 Sep 2013 02:20:40 +0000 + +shadowsocks (1.3.3-1) unstable; urgency=high + + * Provide more info in verbose mode. + + -- Max Lv Fri, 21 Jun 2013 09:59:20 +0800 + +shadowsocks (1.3.2-1) unstable; urgency=high + + * Fix some ciphers by @linusyang. + + -- Max Lv Sun, 09 Jun 2013 09:52:31 +0000 + +shadowsocks (1.3.1-1) unstable; urgency=low + + * Support more cihpers: camellia, idea, rc2 and seed. + + -- Max Lv Tue, 04 Jun 2013 00:56:17 +0000 + +shadowsocks (1.3-1) unstable; urgency=low + + * Able to bind connections to specific interface. + * Support more ciphers: aes-128-cfb, aes-192-cfb, aes-256-cfb, bf-cfb, cast5-cfb, des-cfb. + + -- Max Lv Thu, 16 May 2013 10:51:15 +0800 + +shadowsocks (1.2-2) unstable; urgency=low + + * Close timeouted TCP connections. + + -- Max Lv Tue, 07 May 2013 14:10:33 +0800 + +shadowsocks (1.2-1) unstable; urgency=low + + * Fix a high load issue. + + -- Max Lv Thu, 18 Apr 2013 10:52:34 +0800 + +shadowsocks (1.1-1) unstable; urgency=low + + * Fix a IPV6 resolve issue. + + -- Max Lv Wed, 10 Apr 2013 12:11:36 +0800 + +shadowsocks (1.0-2) unstable; urgency=low + + * Initial release. + + -- Max Lv Sat, 06 Apr 2013 16:59:15 +0800 diff --git a/shadowsocksr-libev/src/INSTALL b/shadowsocksr-libev/src/INSTALL new file mode 100644 index 000000000..7d1c323be --- /dev/null +++ b/shadowsocksr-libev/src/INSTALL @@ -0,0 +1,365 @@ +Installation Instructions +************************* + +Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, +2006, 2007, 2008, 2009 Free Software Foundation, Inc. + + Copying and distribution of this file, with or without modification, +are permitted in any medium without royalty provided the copyright +notice and this notice are preserved. 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distdir distuninstallcheck dvi dvi-am html html-am info \ + info-am install install-am install-data install-data-am \ + install-dvi install-dvi-am install-exec install-exec-am \ + install-html install-html-am install-info install-info-am \ + install-man install-pdf install-pdf-am \ + install-pkgconfiglibDATA install-ps install-ps-am \ + install-strip installcheck installcheck-am installdirs \ + installdirs-am maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \ + ps ps-am tags tags-am uninstall uninstall-am \ + uninstall-pkgconfiglibDATA + +.PRECIOUS: Makefile + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/shadowsocksr-libev/src/README.md b/shadowsocksr-libev/src/README.md new file mode 100644 index 000000000..ea69e7166 --- /dev/null +++ b/shadowsocksr-libev/src/README.md @@ -0,0 +1,486 @@ +# shadowsocks-libev + +## Intro + +[Shadowsocks-libev](http://shadowsocks.org) is a lightweight secured SOCKS5 +proxy for embedded devices and low-end boxes. + +It is a port of [Shadowsocks](https://github.com/shadowsocks/shadowsocks) +created by [@clowwindy](https://github.com/clowwindy), which is maintained by +[@madeye](https://github.com/madeye) and [@linusyang](https://github.com/linusyang). + +Current version: 2.5.6 | [Changelog](debian/changelog) + +Travis CI: [![Travis CI](https://travis-ci.org/shadowsocks/shadowsocks-libev.svg?branch=master)](https://travis-ci.org/shadowsocks/shadowsocks-libev) + +## Features + +Shadowsocks-libev is written in pure C and only depends on +[libev](http://software.schmorp.de/pkg/libev.html) and +[OpenSSL](http://www.openssl.org/) or [mbedTLS](https://tls.mbed.org/) or [PolarSSL](https://polarssl.org/). + +In normal usage, the memory footprint is about 600KB and the CPU utilization is +no more than 5% on a low-end router (Buffalo WHR-G300N V2 with a 400MHz MIPS CPU, +32MB memory and 4MB flash). + +For a full list of feature comparison between different versions of shadowsocks, +refer to the [Wiki page](https://github.com/shadowsocks/shadowsocks/wiki/Feature-Comparison-across-Different-Versions). + +## Installation + +### Distribution-specific guide + +- [Debian & Ubuntu](#debian--ubuntu) + + [Install from repository](#install-from-repository) + + [Build deb package from source](#build-deb-package-from-source) + + [Configure and start the service](#configure-and-start-the-service) +- [Fedora & RHEL](#fedora--rhel) + + [Install from repository](#install-from-repository-1) +- [OpenSUSE](#opensuse) + + [Install from repository](#install-from-repository-2) + + [Build from source](#build-from-source) +- [Archlinux](#archlinux) +- [NixOS](#nixos) +- [Nix](#nix) +- [Directly build and install on UNIX-like system](#linux) +- [FreeBSD](#freebsd) +- [OpenWRT](#openwrt) +- [OS X](#os-x) +- [Windows](#windows) + +* * * + +### Pre-build configure guide + +For a complete list of avaliable configure-time option, +try `configure --help`. + +#### Using alternative crypto library + +There are three crypto libraries available: + +- OpenSSL (**default**) +- mbedTLS +- PolarSSL (Deprecated) + +##### mbedTLS +To build against mbedTLS, specify `--with-crypto-library=mbedtls` +and `--with-mbedtls=/path/to/mbedtls` when running `./configure`. + +Windows users will need extra work when compiling mbedTLS library, +see [this issue](https://github.com/shadowsocks/shadowsocks-libev/issues/422) for detail info. + +##### PolarSSL (Deprecated) + +To build against PolarSSL, specify `--with-crypto-library=polarssl` +and `--with-polarssl=/path/to/polarssl` when running `./configure`. + +* PolarSSL __1.2.5 or newer__ is required. Currently, PolarSSL does __NOT__ support +CAST5-CFB, DES-CFB, IDEA-CFB, RC2-CFB and SEED-CFB. +* RC4 is only support by PolarSSL __1.3.0 or above__. + +#### Using shared library from system + +Please specify `--enable-system-shared-lib`. This will replace the bundled +`libev`, `libsodium` and `libudns` with the corresponding libraries installed +in the system during compilation and linking. + +### Debian & Ubuntu + +#### Install from repository + +**Note: The repositories doesn't always contain the latest version. Please build from source if you want the latest version (see below)** + +Shadowsocks-libev is available in the official repository for Debian 9("Stretch"), unstable, Ubuntu 16.10 and later derivatives: + +```bash +sudo apt update +sudo apt install shadowsocks-libev +``` + +For Debian Jessie users, please install it from `jessie-backports`: + +```bash +sudo sh -c 'printf "deb http://ftp.debian.org/debian jessie-backports main" > /etc/apt/sources.list.d/jessie-backports.list' +sudo apt update +sudo apt -t jessie-backports install shadowsocks-libev +``` + +#### Build deb package from source + +Supported Platforms: + +* Debian 7 (see below), 8, 9, unstable +* Ubuntu 14.04 (see below), Ubuntu 14.10, 15.04, 15.10 or higher + +**Note for Ubuntu 14.04 users**: +Packages built on Ubuntu 14.04 may be used in later Ubuntu versions. However, +packages built on Debian 7/8/9 or Ubuntu 14.10+ **cannot** be installed on +Ubuntu 14.04. + +**Note for Debian 7.x users**: +To build packages on Debian 7 (Wheezy), you need to enable `debian-backports` +to install systemd-compatibility packages like `dh-systemd` or `init-system-helpers`. +Please follow the instructions on [Debian Backports](http://backports.debian.org). + +This also means that you can only install those built packages on systems that have +`init-system-helpers` installed. + +Otherwise, try to build and install directly from source. See the [Linux](#linux) +section below. + +``` bash +cd shadowsocks-libev +sudo apt-get install --no-install-recommends build-essential autoconf libtool libssl-dev \ + gawk debhelper dh-systemd init-system-helpers pkg-config asciidoc xmlto apg libpcre3-dev +dpkg-buildpackage -b -us -uc -i +cd .. +sudo dpkg -i shadowsocks-libev*.deb +``` + +#### Configure and start the service + +``` +# Edit the configuration file +sudo vim /etc/shadowsocks-libev/config.json + +# Edit the default configuration for debian +sudo vim /etc/default/shadowsocks-libev + +# Start the service +sudo /etc/init.d/shadowsocks-libev start # for sysvinit, or +sudo systemctl start shadowsocks-libev # for systemd +``` + +### Fedora & RHEL + +Supported distributions include +- Fedora 22, 23, 24 +- RHEL 6, 7 and derivatives (including CentOS, Scientific Linux) + +#### Install from repository + +Enable repo via `dnf`: + +``` +su -c 'dnf copr enable librehat/shadowsocks' +``` + +Or download yum repo on [Fedora Copr](https://copr.fedoraproject.org/coprs/librehat/shadowsocks/) and put it inside `/etc/yum.repos.d/`. The release `Epel` is for RHEL and its derivatives. + +Then, install `shadowsocks-libev` via `dnf`: + +```bash +su -c 'dnf update' +su -c 'dnf install shadowsocks-libev' +``` + +or `yum`: + +```bash +su -c 'yum update' +su -c 'yum install shadowsocks-libev' +``` +### OpenSUSE + +#### Install from repository +Use the following command to install from repository. + +```bash +sudo zypper install shadowsocks-libev +``` + +#### Build from source +You should install `zlib-devel` and `libopenssl-devel` first. + +```bash +sudo zypper update +sudo zypper install zlib-devel libopenssl-devel +``` + +Then download the source package and compile. + +```bash +git clone https://github.com/shadowsocks/shadowsocks-libev.git +cd shadowsocks-libev +./configure && make +sudo make install +``` + +### Archlinux + +```bash +sudo pacman -S shadowsocks-libev +``` + +Please refer to downstream [PKGBUILD](https://projects.archlinux.org/svntogit/community.git/tree/trunk?h=packages/shadowsocks-libev) +script for extra modifications and distribution-specific bugs. + +### NixOS + +```bash +nix-env -iA nixos.shadowsocks-libev +``` + +### Nix + +```bash +nix-env -iA nixpkgs.shadowsocks-libev +``` + +### Linux + +For Unix-like systems, especially Debian-based systems, +e.g. Ubuntu, Debian or Linux Mint, you can build the binary like this: + +```bash +# Debian / Ubuntu +sudo apt-get install --no-install-recommends build-essential autoconf libtool libssl-dev libpcre3-dev asciidoc xmlto +# CentOS / Fedora / RHEL +sudo yum install gcc autoconf libtool automake make zlib-devel openssl-devel asciidoc xmlto +./configure && make +sudo make install +``` + +### FreeBSD + +```bash +su +cd /usr/ports/net/shadowsocks-libev +make install +``` + +Edit your config.json file. By default, it's located in /usr/local/etc/shadowsocks-libev. + +To enable shadowsocks-libev, add the following rc variable to your /etc/rc.conf file: + +``` +shadowsocks_libev_enable="YES" +``` + +Start the Shadowsocks server: + +```bash +service shadowsocks_libev start +``` + +### OpenWRT + +The OpenWRT project is maintained here: +[openwrt-shadowsocks](https://github.com/shadowsocks/openwrt-shadowsocks). + +### OS X +For OS X, use [Homebrew](http://brew.sh) to install or build. + +Install Homebrew: + +```bash +ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" +``` +Install shadowsocks-libev: + +```bash +brew install shadowsocks-libev +``` + +### Windows + +For Windows, use either MinGW (msys) or Cygwin to build. +At the moment, only `ss-local` is supported to build against MinGW (msys). + +If you are using MinGW (msys), please download OpenSSL or PolarSSL source tarball +to the home directory of msys, and build it like this (may take a few minutes): + +#### OpenSSL + +```bash +tar zxf openssl-1.0.1e.tar.gz +cd openssl-1.0.1e +./config --prefix="$HOME/prebuilt" --openssldir="$HOME/prebuilt/openssl" +make && make install +``` + +#### PolarSSL + +```bash +tar zxf polarssl-1.3.2-gpl.tgz +cd polarssl-1.3.2 +make lib WINDOWS=1 +make install DESTDIR="$HOME/prebuilt" +``` + +Then, build the binary using the commands below, and all `.exe` files +will be built at `$HOME/ss/bin`: + +#### OpenSSL + +```bash +./configure --prefix="$HOME/ss" --with-openssl="$HOME/prebuilt" +make && make install +``` + +#### PolarSSL + +```bash +./configure --prefix="$HOME/ss" --with-crypto-library=polarssl --with-polarssl=$HOME/prebuilt +make && make install +``` + +## Usage + +For a detailed and complete list of all supported arguments, you may refer to the +man pages of the applications, respectively. + +``` + ss-[local|redir|server|tunnel] + + -s host name or ip address of your remote server + + -p port number of your remote server + + -l port number of your local server + + -k password of your remote server + + [-m ] encrypt method: table, rc4, rc4-md5, + aes-128-cfb, aes-192-cfb, aes-256-cfb, + bf-cfb, camellia-128-cfb, camellia-192-cfb, + camellia-256-cfb, cast5-cfb, des-cfb, idea-cfb, + rc2-cfb, seed-cfb, salsa20 ,chacha20 and + chacha20-ietf + + [-f ] the file path to store pid + + [-t ] socket timeout in seconds + + [-c ] the path to config file + + [-i ] network interface to bind, + not available in redir mode + + [-b ] local address to bind, + not available in server mode + + [-u] enable udprelay mode, + TPROXY is required in redir mode + + [-U] enable UDP relay and disable TCP relay, + not available in local mode + + [-A] enable onetime authentication + + [-L :] specify destination server address and port + for local port forwarding, + only available in tunnel mode + + [-d ] setup name servers for internal DNS resolver, + only available in server mode + + [--fast-open] enable TCP fast open, + only available in local and server mode, + with Linux kernel > 3.7.0 + + [--acl ] config file of ACL (Access Control List) + only available in local and server mode + + [--manager-address ] UNIX domain socket address + only available in server and manager mode + + [--executable ] path to the executable of ss-server + only available in manager mode + + [-v] verbose mode + +notes: + + ss-redir provides a transparent proxy function and only works on the + Linux platform with iptables. + +``` + +## Advanced usage + +The latest shadowsocks-libev has provided a *redir* mode. You can configure your Linux-based box or router to proxy all TCP traffic transparently. + + # Create new chain + root@Wrt:~# iptables -t nat -N SHADOWSOCKS + root@Wrt:~# iptables -t mangle -N SHADOWSOCKS + + # Ignore your shadowsocks server's addresses + # It's very IMPORTANT, just be careful. + root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 123.123.123.123 -j RETURN + + # Ignore LANs and any other addresses you'd like to bypass the proxy + # See Wikipedia and RFC5735 for full list of reserved networks. + # See ashi009/bestroutetb for a highly optimized CHN route list. + root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 0.0.0.0/8 -j RETURN + root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 10.0.0.0/8 -j RETURN + root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 127.0.0.0/8 -j RETURN + root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 169.254.0.0/16 -j RETURN + root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 172.16.0.0/12 -j RETURN + root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 192.168.0.0/16 -j RETURN + root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 224.0.0.0/4 -j RETURN + root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 240.0.0.0/4 -j RETURN + + # Anything else should be redirected to shadowsocks's local port + root@Wrt:~# iptables -t nat -A SHADOWSOCKS -p tcp -j REDIRECT --to-ports 12345 + + # Add any UDP rules + root@Wrt:~# ip route add local default dev lo table 100 + root@Wrt:~# ip rule add fwmark 1 lookup 100 + root@Wrt:~# iptables -t mangle -A SHADOWSOCKS -p udp --dport 53 -j TPROXY --on-port 12345 --tproxy-mark 0x01/0x01 + root@Wrt:~# iptables -t mangle -A SHADOWSOCKS_MARK -p udp --dport 53 -j MARK --set-mark 1 + + # Apply the rules + root@Wrt:~# iptables -t nat -A OUTPUT -p tcp -j SHADOWSOCKS + root@Wrt:~# iptables -t mangle -A PREROUTING -j SHADOWSOCKS + root@Wrt:~# iptables -t mangle -A OUTPUT -j SHADOWSOCKS_MARK + + # Start the shadowsocks-redir + root@Wrt:~# ss-redir -u -c /etc/config/shadowsocks.json -f /var/run/shadowsocks.pid + +## Shadowsocks over KCP + +It's quite easy to use shadowsocks and [KCP](https://github.com/skywind3000/kcp) together with [kcptun](https://github.com/xtaci/kcptun). + +The goal of shadowsocks over KCP is to provide a fully configurable, UDP based protocol to improve poor connections, e.g. a high packet loss 3G network. + +### Setup your server + +```bash +server_linux_amd64 -l :21 -t 127.0.0.1:443 --crypt none --mtu 1200 --nocomp --mode normal --dscp 46 & +ss-server -s 0.0.0.0 -p 443 -k passwd -m chacha20 -u +``` + +### Setup your client + +```bash +client_linux_amd64 -l 127.0.0.1:1090 -r :21 --crypt none --mtu 1200 --nocomp --mode normal --dscp 46 & +ss-local -s 127.0.0.1 -p 1090 -k passwd -m chacha20 -l 1080 -b 0.0.0.0 & +ss-local -s -p 443 -k passwd -m chacha20 -l 1080 -U -b 0.0.0.0 +``` + +## Security Tips + +Although shadowsocks-libev can handle thousands of concurrent connections nicely, we still recommend +setting up your server's firewall rules to limit connections from each user: + + # Up to 32 connections are enough for normal usage + iptables -A INPUT -p tcp --syn --dport ${SHADOWSOCKS_PORT} -m connlimit --connlimit-above 32 -j REJECT --reject-with tcp-reset + +## License + +Copyright (C) 2016 Max Lv + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . diff --git a/shadowsocksr-libev/src/acl/chn.acl b/shadowsocksr-libev/src/acl/chn.acl new file mode 100644 index 000000000..576c3c793 --- /dev/null +++ b/shadowsocksr-libev/src/acl/chn.acl @@ -0,0 +1,3805 @@ +[proxy_all] + +[bypass_list] +1.0.1.0/24 +1.0.2.0/23 +1.0.8.0/21 +1.0.32.0/19 +1.1.0.0/24 +1.1.2.0/23 +1.1.4.0/22 +1.1.8.0/21 +1.1.16.0/20 +1.1.32.0/19 +1.2.0.0/23 +1.2.2.0/24 +1.2.4.0/24 +1.2.5.0/24 +1.2.6.0/23 +1.2.8.0/24 +1.2.9.0/24 +1.2.10.0/23 +1.2.12.0/22 +1.2.16.0/20 +1.2.32.0/19 +1.2.64.0/18 +1.3.0.0/16 +1.4.1.0/24 +1.4.2.0/23 +1.4.4.0/24 +1.4.5.0/24 +1.4.6.0/23 +1.4.8.0/21 +1.4.16.0/20 +1.4.32.0/19 +1.4.64.0/18 +1.8.0.0/16 +1.10.0.0/21 +1.10.8.0/23 +1.10.11.0/24 +1.10.12.0/22 +1.10.16.0/20 +1.10.32.0/19 +1.10.64.0/18 +1.12.0.0/14 +1.24.0.0/13 +1.45.0.0/16 +1.48.0.0/15 +1.50.0.0/16 +1.51.0.0/16 +1.56.0.0/13 +1.68.0.0/14 +1.80.0.0/13 +1.88.0.0/14 +1.92.0.0/15 +1.94.0.0/15 +1.116.0.0/14 +1.180.0.0/14 +1.184.0.0/15 +1.188.0.0/14 +1.192.0.0/13 +1.202.0.0/15 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+^(.*\.)?xmovies\.com$ +^(.*\.)?xnxx\.com$ +^(.*\.)?xpdo\.net$ +^(.*\.)?xpud\.org$ +^(.*\.)?xrentdvd\.com$ +^(.*\.)?xtube\.com$ +^(.*\.)?blog\.xuite\.net$ +^(.*\.)?vlog\.xuite\.net$ +^(.*\.)?xuzhiyong\.net$ +^(.*\.)?xuchao\.org$ +^(.*\.)?xuchao\.net$ +^(.*\.)?xvideos\.com$ +^(.*\.)?xvideos\.es$ +^(.*\.)?xxbbx\.com$ +^(.*\.)?xxlmovies\.com$ +^(.*\.)?xxx\.com$ +^(.*\.)?xxxymovies\.com$ +^(.*\.)?xys\.org$ +^(.*\.)?xysblogs\.org$ +^(.*\.)?page\.bid\.yahoo\.com$ +^(.*\.)?hk\.yahoo\.com$ +^(.*\.)?hk\.knowledge\.yahoo\.com$ +^(.*\.)?hk\.myblog\.yahoo\.com$ +^(.*\.)?hk\.news\.yahoo\.com$ +^(.*\.)?hk\.rd\.yahoo\.com$ +^(.*\.)?hk\.search\.yahoo\.com$ +^(.*\.)?hk\.video\.news\.yahoo\.com$ +^(.*\.)?meme\.yahoo\.com$ +^(.*\.)?tw\.knowledge\.yahoo\.com$ +^(.*\.)?tw\.mall\.yahoo\.com$ +^(.*\.)?tw\.yahoo\.com$ +^(.*\.)?tw\.mobi\.yahoo\.com$ +^(.*\.)?tw\.myblog\.yahoo\.com$ +^(.*\.)?tw\.news\.yahoo\.com$ +^(.*\.)?pulse\.yahoo\.com$ +^(.*\.)?upcoming\.yahoo\.com$ +^(.*\.)?video\.yahoo\.com$ 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+^(.*\.)?yuanming\.net$ +^(.*\.)?yuanzhengtang\.org$ +^(.*\.)?yulghun\.com$ +^(.*\.)?yunchao\.net$ +^(.*\.)?yuvutu\.com$ +^(.*\.)?yvesgeleyn\.com$ +^(.*\.)?ywpw\.com$ +^(.*\.)?yx51\.net$ +^(.*\.)?yyii\.org$ +^(.*\.)?yzzk\.com$ +^(.*\.)?zacebook\.com$ +^(.*\.)?zalmos\.com$ +^(.*\.)?zannel\.com$ +^(.*\.)?zaobao\.com$ +^(.*\.)?zaobao\.com\.sg$ +^(.*\.)?zaozon\.com$ +^(.*\.)?zello\.com$ +^(.*\.)?zengjinyan\.org$ +^(.*\.)?zeutch\.com$ +^(.*\.)?zfreet\.com$ +^(.*\.)?zgsddh\.com$ +^(.*\.)?zgzcjj\.net$ +^(.*\.)?zhanbin\.net$ +^(.*\.)?zhangboli\.net$ +^(.*\.)?zhangtianliang\.com$ +^(.*\.)?zhenghui\.org$ +^(.*\.)?zhengwunet\.org$ +^(.*\.)?zhenlibu\.info$ +^(.*\.)?zhenlibu1984\.com$ +^(.*\.)?zhenxiang\.biz$ +^(.*\.)?zhinengluyou\.com$ +^(.*\.)?zhongguo\.ca$ +^(.*\.)?zhongguorenquan\.org$ +^(.*\.)?zhongguotese\.net$ +^(.*\.)?zhongmeng\.org$ +^(.*\.)?zhreader\.com$ +^(.*\.)?zhuangbi\.me$ +^(.*\.)?zhuatieba\.com$ +^(.*\.)?zhuichaguoji\.org$ +^(.*\.)?book\.zi5\.me$ +^(.*\.)?ziddu\.com$ +^(.*\.)?zillionk\.com$ +^(.*\.)?zinio\.com$ +^(.*\.)?ziplib\.com$ +^(.*\.)?ziporn\.com$ +^(.*\.)?zkaip\.com$ +^(.*\.)?realforum\.zkiz\.com$ +^(.*\.)?zomobo\.net$ +^(.*\.)?zonaeuropa\.com$ +^(.*\.)?zonghexinwen\.com$ +^(.*\.)?zonghexinwen\.net$ +^(.*\.)?zootool\.com$ +^(.*\.)?zoozle\.net$ +^(.*\.)?writer\.zoho\.com$ +^(.*\.)?zshare\.net$ +^(.*\.)?zsrhao\.com$ +^(.*\.)?zuo\.la$ +^(.*\.)?zuobiao\.me$ +^(.*\.)?zuola\.com$ +^(.*\.)?zvereff\.com$ +^(.*\.)?zynaima\.com$ +^(.*\.)?zyzc9\.com$ +^(.*\.)?zzcartoon\.com$ +^(.*\.)?phobos\.apple\.com$ diff --git a/shadowsocksr-libev/src/acl/local.acl b/shadowsocksr-libev/src/acl/local.acl new file mode 100644 index 000000000..6484f768b --- /dev/null +++ b/shadowsocksr-libev/src/acl/local.acl @@ -0,0 +1,9 @@ +[reject_all] + +[white_list] +127.0.0.1 +::1 +10.0.0.0/8 +172.16.0.0/12 +192.168.0.0/16 +fc00::/7 diff --git a/shadowsocksr-libev/src/acl/server_block_chn.acl b/shadowsocksr-libev/src/acl/server_block_chn.acl new file mode 100644 index 000000000..aa1102af7 --- /dev/null +++ b/shadowsocksr-libev/src/acl/server_block_chn.acl @@ -0,0 +1,3811 @@ +# All IPs listed here will be blocked while the ss-server try to outbound. +# Only IP is allowed, *NOT* domain name. +# +# The IPs bellow are all IPs in CHN. It'll block ss-server to access all +# CHN hosts by command +# `ss-server -s:: -p 8388 -k 123456 --acl acl/server_block_chn.acl` + +[outbound_block_list] +103.235.44.0/22 +1.0.1.0/24 +1.0.2.0/23 +1.0.8.0/21 +1.0.32.0/19 +1.1.0.0/24 +1.1.2.0/23 +1.1.4.0/22 +1.1.8.0/21 +1.1.16.0/20 +1.1.32.0/19 +1.2.0.0/23 +1.2.2.0/24 +1.2.4.0/24 +1.2.5.0/24 +1.2.6.0/23 +1.2.8.0/24 +1.2.9.0/24 +1.2.10.0/23 +1.2.12.0/22 +1.2.16.0/20 +1.2.32.0/19 +1.2.64.0/18 +1.3.0.0/16 +1.4.1.0/24 +1.4.2.0/23 +1.4.4.0/24 +1.4.5.0/24 +1.4.6.0/23 +1.4.8.0/21 +1.4.16.0/20 +1.4.32.0/19 +1.4.64.0/18 +1.8.0.0/16 +1.10.0.0/21 +1.10.8.0/23 +1.10.11.0/24 +1.10.12.0/22 +1.10.16.0/20 +1.10.32.0/19 +1.10.64.0/18 +1.12.0.0/14 +1.24.0.0/13 +1.45.0.0/16 +1.48.0.0/15 +1.50.0.0/16 +1.51.0.0/16 +1.56.0.0/13 +1.68.0.0/14 +1.80.0.0/13 +1.88.0.0/14 +1.92.0.0/15 +1.94.0.0/15 +1.116.0.0/14 +1.180.0.0/14 +1.184.0.0/15 +1.188.0.0/14 +1.192.0.0/13 +1.202.0.0/15 +1.204.0.0/14 +14.0.0.0/21 +14.0.12.0/22 +14.1.0.0/22 +14.16.0.0/12 +14.102.128.0/22 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See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# This file is maintained in Automake, please report +# bugs to or send patches to +# . + + +# func_error message +func_error () +{ + echo "$me: $1" 1>&2 + exit 1 +} + +file_conv= + +# func_file_conv build_file +# Convert a $build file to $host form and store it in $file +# Currently only supports Windows hosts. +func_file_conv () +{ + file=$1 + case $file in + / | /[!/]*) # absolute file, and not a UNC file + if test -z "$file_conv"; then + # lazily determine how to convert abs files + case `uname -s` in + MINGW*) + file_conv=mingw + ;; + CYGWIN*) + file_conv=cygwin + ;; + *) + file_conv=wine + ;; + esac + fi + case $file_conv in + mingw) + file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'` + ;; + cygwin) + file=`cygpath -m "$file" || echo "$file"` + ;; + wine) + file=`winepath -w "$file" || echo "$file"` + ;; + esac + ;; + esac +} + +# func_at_file at_file operation archive +# Iterate over all members in AT_FILE performing OPERATION on ARCHIVE +# for each of them. +# When interpreting the content of the @FILE, do NOT use func_file_conv, +# since the user would need to supply preconverted file names to +# binutils ar, at least for MinGW. +func_at_file () +{ + operation=$2 + archive=$3 + at_file_contents=`cat "$1"` + eval set x "$at_file_contents" + shift + + for member + do + $AR -NOLOGO $operation:"$member" "$archive" || exit $? + done +} + +case $1 in + '') + func_error "no command. Try '$0 --help' for more information." + ;; + -h | --h*) + cat <. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# This file is maintained in Automake, please report +# bugs to or send patches to +# . + +nl=' +' + +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent tools from complaining about whitespace usage. +IFS=" "" $nl" + +file_conv= + +# func_file_conv build_file lazy +# Convert a $build file to $host form and store it in $file +# Currently only supports Windows hosts. If the determined conversion +# type is listed in (the comma separated) LAZY, no conversion will +# take place. +func_file_conv () +{ + file=$1 + case $file in + / | /[!/]*) # absolute file, and not a UNC file + if test -z "$file_conv"; then + # lazily determine how to convert abs files + case `uname -s` in + MINGW*) + file_conv=mingw + ;; + CYGWIN*) + file_conv=cygwin + ;; + *) + file_conv=wine + ;; + esac + fi + case $file_conv/,$2, in + *,$file_conv,*) + ;; + mingw/*) + file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'` + ;; + cygwin/*) + file=`cygpath -m "$file" || echo "$file"` + ;; + wine/*) + file=`winepath -w "$file" || echo "$file"` + ;; + esac + ;; + esac +} + +# func_cl_dashL linkdir +# Make cl look for libraries in LINKDIR +func_cl_dashL () +{ + func_file_conv "$1" + if test -z "$lib_path"; then + lib_path=$file + else + lib_path="$lib_path;$file" + fi + linker_opts="$linker_opts -LIBPATH:$file" +} + +# func_cl_dashl library +# Do a library search-path lookup for cl +func_cl_dashl () +{ + lib=$1 + found=no + save_IFS=$IFS + IFS=';' + for dir in $lib_path $LIB + do + IFS=$save_IFS + if $shared && test -f "$dir/$lib.dll.lib"; then + found=yes + lib=$dir/$lib.dll.lib + break + fi + if test -f "$dir/$lib.lib"; then + found=yes + lib=$dir/$lib.lib + break + fi + if test -f "$dir/lib$lib.a"; then + found=yes + lib=$dir/lib$lib.a + break + fi + done + IFS=$save_IFS + + if test "$found" != yes; then + lib=$lib.lib + fi +} + +# func_cl_wrapper cl arg... +# Adjust compile command to suit cl +func_cl_wrapper () +{ + # Assume a capable shell + lib_path= + shared=: + linker_opts= + for arg + do + if test -n "$eat"; then + eat= + else + case $1 in + -o) + # configure might choose to run compile as 'compile cc -o foo foo.c'. + eat=1 + case $2 in + *.o | *.[oO][bB][jJ]) + func_file_conv "$2" + set x "$@" -Fo"$file" + shift + ;; + *) + func_file_conv "$2" + set x "$@" -Fe"$file" + shift + ;; + esac + ;; + -I) + eat=1 + func_file_conv "$2" mingw + set x "$@" -I"$file" + shift + ;; + -I*) + func_file_conv "${1#-I}" mingw + set x "$@" -I"$file" + shift + ;; + -l) + eat=1 + func_cl_dashl "$2" + set x "$@" "$lib" + shift + ;; + -l*) + func_cl_dashl "${1#-l}" + set x "$@" "$lib" + shift + ;; + -L) + eat=1 + func_cl_dashL "$2" + ;; + -L*) + func_cl_dashL "${1#-L}" + ;; + -static) + shared=false + ;; + -Wl,*) + arg=${1#-Wl,} + save_ifs="$IFS"; IFS=',' + for flag in $arg; do + IFS="$save_ifs" + linker_opts="$linker_opts $flag" + done + IFS="$save_ifs" + ;; + -Xlinker) + eat=1 + linker_opts="$linker_opts $2" + ;; + -*) + set x "$@" "$1" + shift + ;; + *.cc | *.CC | *.cxx | *.CXX | *.[cC]++) + func_file_conv "$1" + set x "$@" -Tp"$file" + shift + ;; + *.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO]) + func_file_conv "$1" mingw + set x "$@" "$file" + shift + ;; + *) + set x "$@" "$1" + shift + ;; + esac + fi + shift + done + if test -n "$linker_opts"; then + linker_opts="-link$linker_opts" + fi + exec "$@" $linker_opts + exit 1 +} + +eat= + +case $1 in + '') + echo "$0: No command. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: compile [--help] [--version] PROGRAM [ARGS] + +Wrapper for compilers which do not understand '-c -o'. +Remove '-o dest.o' from ARGS, run PROGRAM with the remaining +arguments, and rename the output as expected. + +If you are trying to build a whole package this is not the +right script to run: please start by reading the file 'INSTALL'. + +Report bugs to . +EOF + exit $? + ;; + -v | --v*) + echo "compile $scriptversion" + exit $? + ;; + cl | *[/\\]cl | cl.exe | *[/\\]cl.exe ) + func_cl_wrapper "$@" # Doesn't return... + ;; +esac + +ofile= +cfile= + +for arg +do + if test -n "$eat"; then + eat= + else + case $1 in + -o) + # configure might choose to run compile as 'compile cc -o foo foo.c'. + # So we strip '-o arg' only if arg is an object. + eat=1 + case $2 in + *.o | *.obj) + ofile=$2 + ;; + *) + set x "$@" -o "$2" + shift + ;; + esac + ;; + *.c) + cfile=$1 + set x "$@" "$1" + shift + ;; + *) + set x "$@" "$1" + shift + ;; + esac + fi + shift +done + +if test -z "$ofile" || test -z "$cfile"; then + # If no '-o' option was seen then we might have been invoked from a + # pattern rule where we don't need one. That is ok -- this is a + # normal compilation that the losing compiler can handle. If no + # '.c' file was seen then we are probably linking. That is also + # ok. + exec "$@" +fi + +# Name of file we expect compiler to create. +cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'` + +# Create the lock directory. +# Note: use '[/\\:.-]' here to ensure that we don't use the same name +# that we are using for the .o file. Also, base the name on the expected +# object file name, since that is what matters with a parallel build. +lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d +while true; do + if mkdir "$lockdir" >/dev/null 2>&1; then + break + fi + sleep 1 +done +# FIXME: race condition here if user kills between mkdir and trap. +trap "rmdir '$lockdir'; exit 1" 1 2 15 + +# Run the compile. +"$@" +ret=$? + +if test -f "$cofile"; then + test "$cofile" = "$ofile" || mv "$cofile" "$ofile" +elif test -f "${cofile}bj"; then + test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile" +fi + +rmdir "$lockdir" +exit $ret + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC" +# time-stamp-end: "; # UTC" +# End: diff --git a/shadowsocksr-libev/src/auto/config.guess b/shadowsocksr-libev/src/auto/config.guess new file mode 100644 index 000000000..b79252d6b --- /dev/null +++ b/shadowsocksr-libev/src/auto/config.guess @@ -0,0 +1,1558 @@ +#! /bin/sh +# Attempt to guess a canonical system name. +# Copyright 1992-2013 Free Software Foundation, Inc. + +timestamp='2013-06-10' + +# This file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, see . +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that +# program. This Exception is an additional permission under section 7 +# of the GNU General Public License, version 3 ("GPLv3"). +# +# Originally written by Per Bothner. +# +# You can get the latest version of this script from: +# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD +# +# Please send patches with a ChangeLog entry to config-patches@gnu.org. + + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] + +Output the configuration name of the system \`$me' is run on. + +Operation modes: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to ." + +version="\ +GNU config.guess ($timestamp) + +Originally written by Per Bothner. +Copyright 1992-2013 Free Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit ;; + --version | -v ) + echo "$version" ; exit ;; + --help | --h* | -h ) + echo "$usage"; exit ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" >&2 + exit 1 ;; + * ) + break ;; + esac +done + +if test $# != 0; then + echo "$me: too many arguments$help" >&2 + exit 1 +fi + +trap 'exit 1' 1 2 15 + +# CC_FOR_BUILD -- compiler used by this script. Note that the use of a +# compiler to aid in system detection is discouraged as it requires +# temporary files to be created and, as you can see below, it is a +# headache to deal with in a portable fashion. + +# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still +# use `HOST_CC' if defined, but it is deprecated. + +# Portable tmp directory creation inspired by the Autoconf team. + +set_cc_for_build=' +trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ; +trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ; +: ${TMPDIR=/tmp} ; + { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } || + { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } || + { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } || + { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ; +dummy=$tmp/dummy ; +tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ; +case $CC_FOR_BUILD,$HOST_CC,$CC in + ,,) echo "int x;" > $dummy.c ; + for c in cc gcc c89 c99 ; do + if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then + CC_FOR_BUILD="$c"; break ; + fi ; + done ; + if test x"$CC_FOR_BUILD" = x ; then + CC_FOR_BUILD=no_compiler_found ; + fi + ;; + ,,*) CC_FOR_BUILD=$CC ;; + ,*,*) CC_FOR_BUILD=$HOST_CC ;; +esac ; set_cc_for_build= ;' + +# This is needed to find uname on a Pyramid OSx when run in the BSD universe. +# (ghazi@noc.rutgers.edu 1994-08-24) +if (test -f /.attbin/uname) >/dev/null 2>&1 ; then + PATH=$PATH:/.attbin ; export PATH +fi + +UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown +UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown +UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown +UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown + +case "${UNAME_SYSTEM}" in +Linux|GNU|GNU/*) + # If the system lacks a compiler, then just pick glibc. + # We could probably try harder. + LIBC=gnu + + eval $set_cc_for_build + cat <<-EOF > $dummy.c + #include + #if defined(__UCLIBC__) + LIBC=uclibc + #elif defined(__dietlibc__) + LIBC=dietlibc + #else + LIBC=gnu + #endif + EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'` + ;; +esac + +# Note: order is significant - the case branches are not exclusive. + +case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in + *:NetBSD:*:*) + # NetBSD (nbsd) targets should (where applicable) match one or + # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*, + # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently + # switched to ELF, *-*-netbsd* would select the old + # object file format. This provides both forward + # compatibility and a consistent mechanism for selecting the + # object file format. + # + # Note: NetBSD doesn't particularly care about the vendor + # portion of the name. We always set it to "unknown". + sysctl="sysctl -n hw.machine_arch" + UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \ + /usr/sbin/$sysctl 2>/dev/null || echo unknown)` + case "${UNAME_MACHINE_ARCH}" in + armeb) machine=armeb-unknown ;; + arm*) machine=arm-unknown ;; + sh3el) machine=shl-unknown ;; + sh3eb) machine=sh-unknown ;; + sh5el) machine=sh5le-unknown ;; + *) machine=${UNAME_MACHINE_ARCH}-unknown ;; + esac + # The Operating System including object format, if it has switched + # to ELF recently, or will in the future. + case "${UNAME_MACHINE_ARCH}" in + arm*|i386|m68k|ns32k|sh3*|sparc|vax) + eval $set_cc_for_build + if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ELF__ + then + # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout). + # Return netbsd for either. FIX? + os=netbsd + else + os=netbsdelf + fi + ;; + *) + os=netbsd + ;; + esac + # The OS release + # Debian GNU/NetBSD machines have a different userland, and + # thus, need a distinct triplet. However, they do not need + # kernel version information, so it can be replaced with a + # suitable tag, in the style of linux-gnu. + case "${UNAME_VERSION}" in + Debian*) + release='-gnu' + ;; + *) + release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'` + ;; + esac + # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM: + # contains redundant information, the shorter form: + # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used. + echo "${machine}-${os}${release}" + exit ;; + *:Bitrig:*:*) + UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'` + echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE} + exit ;; + *:OpenBSD:*:*) + UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'` + echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE} + exit ;; + *:ekkoBSD:*:*) + echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE} + exit ;; + *:SolidBSD:*:*) + echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE} + exit ;; + macppc:MirBSD:*:*) + echo powerpc-unknown-mirbsd${UNAME_RELEASE} + exit ;; + *:MirBSD:*:*) + echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE} + exit ;; + alpha:OSF1:*:*) + case $UNAME_RELEASE in + *4.0) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'` + ;; + *5.*) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'` + ;; + esac + # According to Compaq, /usr/sbin/psrinfo has been available on + # OSF/1 and Tru64 systems produced since 1995. I hope that + # covers most systems running today. This code pipes the CPU + # types through head -n 1, so we only detect the type of CPU 0. + ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1` + case "$ALPHA_CPU_TYPE" in + "EV4 (21064)") + UNAME_MACHINE="alpha" ;; + "EV4.5 (21064)") + UNAME_MACHINE="alpha" ;; + "LCA4 (21066/21068)") + UNAME_MACHINE="alpha" ;; + "EV5 (21164)") + UNAME_MACHINE="alphaev5" ;; + "EV5.6 (21164A)") + UNAME_MACHINE="alphaev56" ;; + "EV5.6 (21164PC)") + UNAME_MACHINE="alphapca56" ;; + "EV5.7 (21164PC)") + UNAME_MACHINE="alphapca57" ;; + "EV6 (21264)") + UNAME_MACHINE="alphaev6" ;; + "EV6.7 (21264A)") + UNAME_MACHINE="alphaev67" ;; + "EV6.8CB (21264C)") + UNAME_MACHINE="alphaev68" ;; + "EV6.8AL (21264B)") + UNAME_MACHINE="alphaev68" ;; + "EV6.8CX (21264D)") + UNAME_MACHINE="alphaev68" ;; + "EV6.9A (21264/EV69A)") + UNAME_MACHINE="alphaev69" ;; + "EV7 (21364)") + UNAME_MACHINE="alphaev7" ;; + "EV7.9 (21364A)") + UNAME_MACHINE="alphaev79" ;; + esac + # A Pn.n version is a patched version. + # A Vn.n version is a released version. + # A Tn.n version is a released field test version. + # A Xn.n version is an unreleased experimental baselevel. + # 1.2 uses "1.2" for uname -r. + echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` + # Reset EXIT trap before exiting to avoid spurious non-zero exit code. + exitcode=$? + trap '' 0 + exit $exitcode ;; + Alpha\ *:Windows_NT*:*) + # How do we know it's Interix rather than the generic POSIX subsystem? + # Should we change UNAME_MACHINE based on the output of uname instead + # of the specific Alpha model? + echo alpha-pc-interix + exit ;; + 21064:Windows_NT:50:3) + echo alpha-dec-winnt3.5 + exit ;; + Amiga*:UNIX_System_V:4.0:*) + echo m68k-unknown-sysv4 + exit ;; + *:[Aa]miga[Oo][Ss]:*:*) + echo ${UNAME_MACHINE}-unknown-amigaos + exit ;; + *:[Mm]orph[Oo][Ss]:*:*) + echo ${UNAME_MACHINE}-unknown-morphos + exit ;; + *:OS/390:*:*) + echo i370-ibm-openedition + exit ;; + *:z/VM:*:*) + echo s390-ibm-zvmoe + exit ;; + *:OS400:*:*) + echo powerpc-ibm-os400 + exit ;; + arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) + echo arm-acorn-riscix${UNAME_RELEASE} + exit ;; + arm*:riscos:*:*|arm*:RISCOS:*:*) + echo arm-unknown-riscos + exit ;; + SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*) + echo hppa1.1-hitachi-hiuxmpp + exit ;; + Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*) + # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE. + if test "`(/bin/universe) 2>/dev/null`" = att ; then + echo pyramid-pyramid-sysv3 + else + echo pyramid-pyramid-bsd + fi + exit ;; + NILE*:*:*:dcosx) + echo pyramid-pyramid-svr4 + exit ;; + DRS?6000:unix:4.0:6*) + echo sparc-icl-nx6 + exit ;; + DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*) + case `/usr/bin/uname -p` in + sparc) echo sparc-icl-nx7; exit ;; + esac ;; + s390x:SunOS:*:*) + echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + sun4H:SunOS:5.*:*) + echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) + echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*) + echo i386-pc-auroraux${UNAME_RELEASE} + exit ;; + i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*) + eval $set_cc_for_build + SUN_ARCH="i386" + # If there is a compiler, see if it is configured for 64-bit objects. + # Note that the Sun cc does not turn __LP64__ into 1 like gcc does. + # This test works for both compilers. + if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then + if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \ + (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \ + grep IS_64BIT_ARCH >/dev/null + then + SUN_ARCH="x86_64" + fi + fi + echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + sun4*:SunOS:6*:*) + # According to config.sub, this is the proper way to canonicalize + # SunOS6. Hard to guess exactly what SunOS6 will be like, but + # it's likely to be more like Solaris than SunOS4. + echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + sun4*:SunOS:*:*) + case "`/usr/bin/arch -k`" in + Series*|S4*) + UNAME_RELEASE=`uname -v` + ;; + esac + # Japanese Language versions have a version number like `4.1.3-JL'. + echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'` + exit ;; + sun3*:SunOS:*:*) + echo m68k-sun-sunos${UNAME_RELEASE} + exit ;; + sun*:*:4.2BSD:*) + UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` + test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3 + case "`/bin/arch`" in + sun3) + echo m68k-sun-sunos${UNAME_RELEASE} + ;; + sun4) + echo sparc-sun-sunos${UNAME_RELEASE} + ;; + esac + exit ;; + aushp:SunOS:*:*) + echo sparc-auspex-sunos${UNAME_RELEASE} + exit ;; + # The situation for MiNT is a little confusing. The machine name + # can be virtually everything (everything which is not + # "atarist" or "atariste" at least should have a processor + # > m68000). The system name ranges from "MiNT" over "FreeMiNT" + # to the lowercase version "mint" (or "freemint"). Finally + # the system name "TOS" denotes a system which is actually not + # MiNT. But MiNT is downward compatible to TOS, so this should + # be no problem. + atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit ;; + atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit ;; + *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit ;; + milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) + echo m68k-milan-mint${UNAME_RELEASE} + exit ;; + hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) + echo m68k-hades-mint${UNAME_RELEASE} + exit ;; + *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) + echo m68k-unknown-mint${UNAME_RELEASE} + exit ;; + m68k:machten:*:*) + echo m68k-apple-machten${UNAME_RELEASE} + exit ;; + powerpc:machten:*:*) + echo powerpc-apple-machten${UNAME_RELEASE} + exit ;; + RISC*:Mach:*:*) + echo mips-dec-mach_bsd4.3 + exit ;; + RISC*:ULTRIX:*:*) + echo mips-dec-ultrix${UNAME_RELEASE} + exit ;; + VAX*:ULTRIX*:*:*) + echo vax-dec-ultrix${UNAME_RELEASE} + exit ;; + 2020:CLIX:*:* | 2430:CLIX:*:*) + echo clipper-intergraph-clix${UNAME_RELEASE} + exit ;; + mips:*:*:UMIPS | mips:*:*:RISCos) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c +#ifdef __cplusplus +#include /* for printf() prototype */ + int main (int argc, char *argv[]) { +#else + int main (argc, argv) int argc; char *argv[]; { +#endif + #if defined (host_mips) && defined (MIPSEB) + #if defined (SYSTYPE_SYSV) + printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_SVR4) + printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) + printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); + #endif + #endif + exit (-1); + } +EOF + $CC_FOR_BUILD -o $dummy $dummy.c && + dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` && + SYSTEM_NAME=`$dummy $dummyarg` && + { echo "$SYSTEM_NAME"; exit; } + echo mips-mips-riscos${UNAME_RELEASE} + exit ;; + Motorola:PowerMAX_OS:*:*) + echo powerpc-motorola-powermax + exit ;; + Motorola:*:4.3:PL8-*) + echo powerpc-harris-powermax + exit ;; + Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) + echo powerpc-harris-powermax + exit ;; + Night_Hawk:Power_UNIX:*:*) + echo powerpc-harris-powerunix + exit ;; + m88k:CX/UX:7*:*) + echo m88k-harris-cxux7 + exit ;; + m88k:*:4*:R4*) + echo m88k-motorola-sysv4 + exit ;; + m88k:*:3*:R3*) + echo m88k-motorola-sysv3 + exit ;; + AViiON:dgux:*:*) + # DG/UX returns AViiON for all architectures + UNAME_PROCESSOR=`/usr/bin/uname -p` + if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] + then + if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ + [ ${TARGET_BINARY_INTERFACE}x = x ] + then + echo m88k-dg-dgux${UNAME_RELEASE} + else + echo m88k-dg-dguxbcs${UNAME_RELEASE} + fi + else + echo i586-dg-dgux${UNAME_RELEASE} + fi + exit ;; + M88*:DolphinOS:*:*) # DolphinOS (SVR3) + echo m88k-dolphin-sysv3 + exit ;; + M88*:*:R3*:*) + # Delta 88k system running SVR3 + echo m88k-motorola-sysv3 + exit ;; + XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) + echo m88k-tektronix-sysv3 + exit ;; + Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) + echo m68k-tektronix-bsd + exit ;; + *:IRIX*:*:*) + echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` + exit ;; + ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. + echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id + exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' + i*86:AIX:*:*) + echo i386-ibm-aix + exit ;; + ia64:AIX:*:*) + if [ -x /usr/bin/oslevel ] ; then + IBM_REV=`/usr/bin/oslevel` + else + IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} + fi + echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} + exit ;; + *:AIX:2:3) + if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include + + main() + { + if (!__power_pc()) + exit(1); + puts("powerpc-ibm-aix3.2.5"); + exit(0); + } +EOF + if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` + then + echo "$SYSTEM_NAME" + else + echo rs6000-ibm-aix3.2.5 + fi + elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then + echo rs6000-ibm-aix3.2.4 + else + echo rs6000-ibm-aix3.2 + fi + exit ;; + *:AIX:*:[4567]) + IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` + if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then + IBM_ARCH=rs6000 + else + IBM_ARCH=powerpc + fi + if [ -x /usr/bin/oslevel ] ; then + IBM_REV=`/usr/bin/oslevel` + else + IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} + fi + echo ${IBM_ARCH}-ibm-aix${IBM_REV} + exit ;; + *:AIX:*:*) + echo rs6000-ibm-aix + exit ;; + ibmrt:4.4BSD:*|romp-ibm:BSD:*) + echo romp-ibm-bsd4.4 + exit ;; + ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and + echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to + exit ;; # report: romp-ibm BSD 4.3 + *:BOSX:*:*) + echo rs6000-bull-bosx + exit ;; + DPX/2?00:B.O.S.:*:*) + echo m68k-bull-sysv3 + exit ;; + 9000/[34]??:4.3bsd:1.*:*) + echo m68k-hp-bsd + exit ;; + hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) + echo m68k-hp-bsd4.4 + exit ;; + 9000/[34678]??:HP-UX:*:*) + HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` + case "${UNAME_MACHINE}" in + 9000/31? ) HP_ARCH=m68000 ;; + 9000/[34]?? ) HP_ARCH=m68k ;; + 9000/[678][0-9][0-9]) + if [ -x /usr/bin/getconf ]; then + sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` + sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` + case "${sc_cpu_version}" in + 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 + 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 + 532) # CPU_PA_RISC2_0 + case "${sc_kernel_bits}" in + 32) HP_ARCH="hppa2.0n" ;; + 64) HP_ARCH="hppa2.0w" ;; + '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 + esac ;; + esac + fi + if [ "${HP_ARCH}" = "" ]; then + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + + #define _HPUX_SOURCE + #include + #include + + int main () + { + #if defined(_SC_KERNEL_BITS) + long bits = sysconf(_SC_KERNEL_BITS); + #endif + long cpu = sysconf (_SC_CPU_VERSION); + + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1"); break; + case CPU_PA_RISC2_0: + #if defined(_SC_KERNEL_BITS) + switch (bits) + { + case 64: puts ("hppa2.0w"); break; + case 32: puts ("hppa2.0n"); break; + default: puts ("hppa2.0"); break; + } break; + #else /* !defined(_SC_KERNEL_BITS) */ + puts ("hppa2.0"); break; + #endif + default: puts ("hppa1.0"); break; + } + exit (0); + } +EOF + (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` + test -z "$HP_ARCH" && HP_ARCH=hppa + fi ;; + esac + if [ ${HP_ARCH} = "hppa2.0w" ] + then + eval $set_cc_for_build + + # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating + # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler + # generating 64-bit code. GNU and HP use different nomenclature: + # + # $ CC_FOR_BUILD=cc ./config.guess + # => hppa2.0w-hp-hpux11.23 + # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess + # => hppa64-hp-hpux11.23 + + if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | + grep -q __LP64__ + then + HP_ARCH="hppa2.0w" + else + HP_ARCH="hppa64" + fi + fi + echo ${HP_ARCH}-hp-hpux${HPUX_REV} + exit ;; + ia64:HP-UX:*:*) + HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` + echo ia64-hp-hpux${HPUX_REV} + exit ;; + 3050*:HI-UX:*:*) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include + int + main () + { + long cpu = sysconf (_SC_CPU_VERSION); + /* The order matters, because CPU_IS_HP_MC68K erroneously returns + true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct + results, however. */ + if (CPU_IS_PA_RISC (cpu)) + { + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; + case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; + default: puts ("hppa-hitachi-hiuxwe2"); break; + } + } + else if (CPU_IS_HP_MC68K (cpu)) + puts ("m68k-hitachi-hiuxwe2"); + else puts ("unknown-hitachi-hiuxwe2"); + exit (0); + } +EOF + $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && + { echo "$SYSTEM_NAME"; exit; } + echo unknown-hitachi-hiuxwe2 + exit ;; + 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) + echo hppa1.1-hp-bsd + exit ;; + 9000/8??:4.3bsd:*:*) + echo hppa1.0-hp-bsd + exit ;; + *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) + echo hppa1.0-hp-mpeix + exit ;; + hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) + echo hppa1.1-hp-osf + exit ;; + hp8??:OSF1:*:*) + echo hppa1.0-hp-osf + exit ;; + i*86:OSF1:*:*) + if [ -x /usr/sbin/sysversion ] ; then + echo ${UNAME_MACHINE}-unknown-osf1mk + else + echo ${UNAME_MACHINE}-unknown-osf1 + fi + exit ;; + parisc*:Lites*:*:*) + echo hppa1.1-hp-lites + exit ;; + C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) + echo c1-convex-bsd + exit ;; + C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) + if getsysinfo -f scalar_acc + then echo c32-convex-bsd + else echo c2-convex-bsd + fi + exit ;; + C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) + echo c34-convex-bsd + exit ;; + C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) + echo c38-convex-bsd + exit ;; + C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) + echo c4-convex-bsd + exit ;; + CRAY*Y-MP:*:*:*) + echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*[A-Z]90:*:*:*) + echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ + | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ + -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ + -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*TS:*:*:*) + echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*T3E:*:*:*) + echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*SV1:*:*:*) + echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit ;; + *:UNICOS/mp:*:*) + echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit ;; + F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) + FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` + FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` + FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` + echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit ;; + 5000:UNIX_System_V:4.*:*) + FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` + FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` + echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit ;; + i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) + echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} + exit ;; + sparc*:BSD/OS:*:*) + echo sparc-unknown-bsdi${UNAME_RELEASE} + exit ;; + *:BSD/OS:*:*) + echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} + exit ;; + *:FreeBSD:*:*) + UNAME_PROCESSOR=`/usr/bin/uname -p` + case ${UNAME_PROCESSOR} in + amd64) + echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; + *) + echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; + esac + exit ;; + i*:CYGWIN*:*) + echo ${UNAME_MACHINE}-pc-cygwin + exit ;; + *:MINGW64*:*) + echo ${UNAME_MACHINE}-pc-mingw64 + exit ;; + *:MINGW*:*) + echo ${UNAME_MACHINE}-pc-mingw32 + exit ;; + i*:MSYS*:*) + echo ${UNAME_MACHINE}-pc-msys + exit ;; + i*:windows32*:*) + # uname -m includes "-pc" on this system. + echo ${UNAME_MACHINE}-mingw32 + exit ;; + i*:PW*:*) + echo ${UNAME_MACHINE}-pc-pw32 + exit ;; + *:Interix*:*) + case ${UNAME_MACHINE} in + x86) + echo i586-pc-interix${UNAME_RELEASE} + exit ;; + authenticamd | genuineintel | EM64T) + echo x86_64-unknown-interix${UNAME_RELEASE} + exit ;; + IA64) + echo ia64-unknown-interix${UNAME_RELEASE} + exit ;; + esac ;; + [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) + echo i${UNAME_MACHINE}-pc-mks + exit ;; + 8664:Windows_NT:*) + echo x86_64-pc-mks + exit ;; + i*:Windows_NT*:* | Pentium*:Windows_NT*:*) + # How do we know it's Interix rather than the generic POSIX subsystem? + # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we + # UNAME_MACHINE based on the output of uname instead of i386? + echo i586-pc-interix + exit ;; + i*:UWIN*:*) + echo ${UNAME_MACHINE}-pc-uwin + exit ;; + amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) + echo x86_64-unknown-cygwin + exit ;; + p*:CYGWIN*:*) + echo powerpcle-unknown-cygwin + exit ;; + prep*:SunOS:5.*:*) + echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit ;; + *:GNU:*:*) + # the GNU system + echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` + exit ;; + *:GNU/*:*:*) + # other systems with GNU libc and userland + echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC} + exit ;; + i*86:Minix:*:*) + echo ${UNAME_MACHINE}-pc-minix + exit ;; + aarch64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + aarch64_be:Linux:*:*) + UNAME_MACHINE=aarch64_be + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + alpha:Linux:*:*) + case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in + EV5) UNAME_MACHINE=alphaev5 ;; + EV56) UNAME_MACHINE=alphaev56 ;; + PCA56) UNAME_MACHINE=alphapca56 ;; + PCA57) UNAME_MACHINE=alphapca56 ;; + EV6) UNAME_MACHINE=alphaev6 ;; + EV67) UNAME_MACHINE=alphaev67 ;; + EV68*) UNAME_MACHINE=alphaev68 ;; + esac + objdump --private-headers /bin/sh | grep -q ld.so.1 + if test "$?" = 0 ; then LIBC="gnulibc1" ; fi + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + arc:Linux:*:* | arceb:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + arm*:Linux:*:*) + eval $set_cc_for_build + if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ARM_EABI__ + then + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + else + if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ARM_PCS_VFP + then + echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi + else + echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf + fi + fi + exit ;; + avr32*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + cris:Linux:*:*) + echo ${UNAME_MACHINE}-axis-linux-${LIBC} + exit ;; + crisv32:Linux:*:*) + echo ${UNAME_MACHINE}-axis-linux-${LIBC} + exit ;; + frv:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + hexagon:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + i*86:Linux:*:*) + echo ${UNAME_MACHINE}-pc-linux-${LIBC} + exit ;; + ia64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + m32r*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + m68*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + mips:Linux:*:* | mips64:Linux:*:*) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #undef CPU + #undef ${UNAME_MACHINE} + #undef ${UNAME_MACHINE}el + #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) + CPU=${UNAME_MACHINE}el + #else + #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) + CPU=${UNAME_MACHINE} + #else + CPU= + #endif + #endif +EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'` + test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; } + ;; + or1k:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + or32:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + padre:Linux:*:*) + echo sparc-unknown-linux-${LIBC} + exit ;; + parisc64:Linux:*:* | hppa64:Linux:*:*) + echo hppa64-unknown-linux-${LIBC} + exit ;; + parisc:Linux:*:* | hppa:Linux:*:*) + # Look for CPU level + case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in + PA7*) echo hppa1.1-unknown-linux-${LIBC} ;; + PA8*) echo hppa2.0-unknown-linux-${LIBC} ;; + *) echo hppa-unknown-linux-${LIBC} ;; + esac + exit ;; + ppc64:Linux:*:*) + echo powerpc64-unknown-linux-${LIBC} + exit ;; + ppc:Linux:*:*) + echo powerpc-unknown-linux-${LIBC} + exit ;; + ppc64le:Linux:*:*) + echo powerpc64le-unknown-linux-${LIBC} + exit ;; + ppcle:Linux:*:*) + echo powerpcle-unknown-linux-${LIBC} + exit ;; + s390:Linux:*:* | s390x:Linux:*:*) + echo ${UNAME_MACHINE}-ibm-linux-${LIBC} + exit ;; + sh64*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + sh*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + sparc:Linux:*:* | sparc64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + tile*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + vax:Linux:*:*) + echo ${UNAME_MACHINE}-dec-linux-${LIBC} + exit ;; + x86_64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + xtensa*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-${LIBC} + exit ;; + i*86:DYNIX/ptx:4*:*) + # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. + # earlier versions are messed up and put the nodename in both + # sysname and nodename. + echo i386-sequent-sysv4 + exit ;; + i*86:UNIX_SV:4.2MP:2.*) + # Unixware is an offshoot of SVR4, but it has its own version + # number series starting with 2... + # I am not positive that other SVR4 systems won't match this, + # I just have to hope. -- rms. + # Use sysv4.2uw... so that sysv4* matches it. + echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} + exit ;; + i*86:OS/2:*:*) + # If we were able to find `uname', then EMX Unix compatibility + # is probably installed. + echo ${UNAME_MACHINE}-pc-os2-emx + exit ;; + i*86:XTS-300:*:STOP) + echo ${UNAME_MACHINE}-unknown-stop + exit ;; + i*86:atheos:*:*) + echo ${UNAME_MACHINE}-unknown-atheos + exit ;; + i*86:syllable:*:*) + echo ${UNAME_MACHINE}-pc-syllable + exit ;; + i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) + echo i386-unknown-lynxos${UNAME_RELEASE} + exit ;; + i*86:*DOS:*:*) + echo ${UNAME_MACHINE}-pc-msdosdjgpp + exit ;; + i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) + UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` + if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then + echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} + else + echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} + fi + exit ;; + i*86:*:5:[678]*) + # UnixWare 7.x, OpenUNIX and OpenServer 6. + case `/bin/uname -X | grep "^Machine"` in + *486*) UNAME_MACHINE=i486 ;; + *Pentium) UNAME_MACHINE=i586 ;; + *Pent*|*Celeron) UNAME_MACHINE=i686 ;; + esac + echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} + exit ;; + i*86:*:3.2:*) + if test -f /usr/options/cb.name; then + UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then + UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` + (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 + (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ + && UNAME_MACHINE=i586 + (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ + && UNAME_MACHINE=i686 + (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ + && UNAME_MACHINE=i686 + echo ${UNAME_MACHINE}-pc-sco$UNAME_REL + else + echo ${UNAME_MACHINE}-pc-sysv32 + fi + exit ;; + pc:*:*:*) + # Left here for compatibility: + # uname -m prints for DJGPP always 'pc', but it prints nothing about + # the processor, so we play safe by assuming i586. + # Note: whatever this is, it MUST be the same as what config.sub + # prints for the "djgpp" host, or else GDB configury will decide that + # this is a cross-build. + echo i586-pc-msdosdjgpp + exit ;; + Intel:Mach:3*:*) + echo i386-pc-mach3 + exit ;; + paragon:*:*:*) + echo i860-intel-osf1 + exit ;; + i860:*:4.*:*) # i860-SVR4 + if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then + echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4 + else # Add other i860-SVR4 vendors below as they are discovered. + echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4 + fi + exit ;; + mini*:CTIX:SYS*5:*) + # "miniframe" + echo m68010-convergent-sysv + exit ;; + mc68k:UNIX:SYSTEM5:3.51m) + echo m68k-convergent-sysv + exit ;; + M680?0:D-NIX:5.3:*) + echo m68k-diab-dnix + exit ;; + M68*:*:R3V[5678]*:*) + test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; + 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) + OS_REL='' + test -r /etc/.relid \ + && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4.3${OS_REL}; exit; } + /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ + && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; + 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4; exit; } ;; + NCR*:*:4.2:* | MPRAS*:*:4.2:*) + OS_REL='.3' + test -r /etc/.relid \ + && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4.3${OS_REL}; exit; } + /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ + && { echo i586-ncr-sysv4.3${OS_REL}; exit; } + /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ + && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; + m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) + echo m68k-unknown-lynxos${UNAME_RELEASE} + exit ;; + mc68030:UNIX_System_V:4.*:*) + echo m68k-atari-sysv4 + exit ;; + TSUNAMI:LynxOS:2.*:*) + echo sparc-unknown-lynxos${UNAME_RELEASE} + exit ;; + rs6000:LynxOS:2.*:*) + echo rs6000-unknown-lynxos${UNAME_RELEASE} + exit ;; + PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*) + echo powerpc-unknown-lynxos${UNAME_RELEASE} + exit ;; + SM[BE]S:UNIX_SV:*:*) + echo mips-dde-sysv${UNAME_RELEASE} + exit ;; + RM*:ReliantUNIX-*:*:*) + echo mips-sni-sysv4 + exit ;; + RM*:SINIX-*:*:*) + echo mips-sni-sysv4 + exit ;; + *:SINIX-*:*:*) + if uname -p 2>/dev/null >/dev/null ; then + UNAME_MACHINE=`(uname -p) 2>/dev/null` + echo ${UNAME_MACHINE}-sni-sysv4 + else + echo ns32k-sni-sysv + fi + exit ;; + PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort + # says + echo i586-unisys-sysv4 + exit ;; + *:UNIX_System_V:4*:FTX*) + # From Gerald Hewes . + # How about differentiating between stratus architectures? -djm + echo hppa1.1-stratus-sysv4 + exit ;; + *:*:*:FTX*) + # From seanf@swdc.stratus.com. + echo i860-stratus-sysv4 + exit ;; + i*86:VOS:*:*) + # From Paul.Green@stratus.com. + echo ${UNAME_MACHINE}-stratus-vos + exit ;; + *:VOS:*:*) + # From Paul.Green@stratus.com. + echo hppa1.1-stratus-vos + exit ;; + mc68*:A/UX:*:*) + echo m68k-apple-aux${UNAME_RELEASE} + exit ;; + news*:NEWS-OS:6*:*) + echo mips-sony-newsos6 + exit ;; + R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) + if [ -d /usr/nec ]; then + echo mips-nec-sysv${UNAME_RELEASE} + else + echo mips-unknown-sysv${UNAME_RELEASE} + fi + exit ;; + BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. + echo powerpc-be-beos + exit ;; + BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. + echo powerpc-apple-beos + exit ;; + BePC:BeOS:*:*) # BeOS running on Intel PC compatible. + echo i586-pc-beos + exit ;; + BePC:Haiku:*:*) # Haiku running on Intel PC compatible. + echo i586-pc-haiku + exit ;; + x86_64:Haiku:*:*) + echo x86_64-unknown-haiku + exit ;; + SX-4:SUPER-UX:*:*) + echo sx4-nec-superux${UNAME_RELEASE} + exit ;; + SX-5:SUPER-UX:*:*) + echo sx5-nec-superux${UNAME_RELEASE} + exit ;; + SX-6:SUPER-UX:*:*) + echo sx6-nec-superux${UNAME_RELEASE} + exit ;; + SX-7:SUPER-UX:*:*) + echo sx7-nec-superux${UNAME_RELEASE} + exit ;; + SX-8:SUPER-UX:*:*) + echo sx8-nec-superux${UNAME_RELEASE} + exit ;; + SX-8R:SUPER-UX:*:*) + echo sx8r-nec-superux${UNAME_RELEASE} + exit ;; + Power*:Rhapsody:*:*) + echo powerpc-apple-rhapsody${UNAME_RELEASE} + exit ;; + *:Rhapsody:*:*) + echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE} + exit ;; + *:Darwin:*:*) + UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown + eval $set_cc_for_build + if test "$UNAME_PROCESSOR" = unknown ; then + UNAME_PROCESSOR=powerpc + fi + if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then + if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \ + (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \ + grep IS_64BIT_ARCH >/dev/null + then + case $UNAME_PROCESSOR in + i386) UNAME_PROCESSOR=x86_64 ;; + powerpc) UNAME_PROCESSOR=powerpc64 ;; + esac + fi + fi + echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE} + exit ;; + *:procnto*:*:* | *:QNX:[0123456789]*:*) + UNAME_PROCESSOR=`uname -p` + if test "$UNAME_PROCESSOR" = "x86"; then + UNAME_PROCESSOR=i386 + UNAME_MACHINE=pc + fi + echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE} + exit ;; + *:QNX:*:4*) + echo i386-pc-qnx + exit ;; + NEO-?:NONSTOP_KERNEL:*:*) + echo neo-tandem-nsk${UNAME_RELEASE} + exit ;; + NSE-*:NONSTOP_KERNEL:*:*) + echo nse-tandem-nsk${UNAME_RELEASE} + exit ;; + NSR-?:NONSTOP_KERNEL:*:*) + echo nsr-tandem-nsk${UNAME_RELEASE} + exit ;; + *:NonStop-UX:*:*) + echo mips-compaq-nonstopux + exit ;; + BS2000:POSIX*:*:*) + echo bs2000-siemens-sysv + exit ;; + DS/*:UNIX_System_V:*:*) + echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE} + exit ;; + *:Plan9:*:*) + # "uname -m" is not consistent, so use $cputype instead. 386 + # is converted to i386 for consistency with other x86 + # operating systems. + if test "$cputype" = "386"; then + UNAME_MACHINE=i386 + else + UNAME_MACHINE="$cputype" + fi + echo ${UNAME_MACHINE}-unknown-plan9 + exit ;; + *:TOPS-10:*:*) + echo pdp10-unknown-tops10 + exit ;; + *:TENEX:*:*) + echo pdp10-unknown-tenex + exit ;; + KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) + echo pdp10-dec-tops20 + exit ;; + XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) + echo pdp10-xkl-tops20 + exit ;; + *:TOPS-20:*:*) + echo pdp10-unknown-tops20 + exit ;; + *:ITS:*:*) + echo pdp10-unknown-its + exit ;; + SEI:*:*:SEIUX) + echo mips-sei-seiux${UNAME_RELEASE} + exit ;; + *:DragonFly:*:*) + echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` + exit ;; + *:*VMS:*:*) + UNAME_MACHINE=`(uname -p) 2>/dev/null` + case "${UNAME_MACHINE}" in + A*) echo alpha-dec-vms ; exit ;; + I*) echo ia64-dec-vms ; exit ;; + V*) echo vax-dec-vms ; exit ;; + esac ;; + *:XENIX:*:SysV) + echo i386-pc-xenix + exit ;; + i*86:skyos:*:*) + echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//' + exit ;; + i*86:rdos:*:*) + echo ${UNAME_MACHINE}-pc-rdos + exit ;; + i*86:AROS:*:*) + echo ${UNAME_MACHINE}-pc-aros + exit ;; + x86_64:VMkernel:*:*) + echo ${UNAME_MACHINE}-unknown-esx + exit ;; +esac + +eval $set_cc_for_build +cat >$dummy.c < +# include +#endif +main () +{ +#if defined (sony) +#if defined (MIPSEB) + /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed, + I don't know.... */ + printf ("mips-sony-bsd\n"); exit (0); +#else +#include + printf ("m68k-sony-newsos%s\n", +#ifdef NEWSOS4 + "4" +#else + "" +#endif + ); exit (0); +#endif +#endif + +#if defined (__arm) && defined (__acorn) && defined (__unix) + printf ("arm-acorn-riscix\n"); exit (0); +#endif + +#if defined (hp300) && !defined (hpux) + printf ("m68k-hp-bsd\n"); exit (0); +#endif + +#if defined (NeXT) +#if !defined (__ARCHITECTURE__) +#define __ARCHITECTURE__ "m68k" +#endif + int version; + version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; + if (version < 4) + printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version); + else + printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version); + exit (0); +#endif + +#if defined (MULTIMAX) || defined (n16) +#if defined (UMAXV) + printf ("ns32k-encore-sysv\n"); exit (0); +#else +#if defined (CMU) + printf ("ns32k-encore-mach\n"); exit (0); +#else + printf ("ns32k-encore-bsd\n"); exit (0); +#endif +#endif +#endif + +#if defined (__386BSD__) + printf ("i386-pc-bsd\n"); exit (0); +#endif + +#if defined (sequent) +#if defined (i386) + printf ("i386-sequent-dynix\n"); exit (0); +#endif +#if defined (ns32000) + printf ("ns32k-sequent-dynix\n"); exit (0); +#endif +#endif + +#if defined (_SEQUENT_) + struct utsname un; + + uname(&un); + + if (strncmp(un.version, "V2", 2) == 0) { + printf ("i386-sequent-ptx2\n"); exit (0); + } + if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */ + printf ("i386-sequent-ptx1\n"); exit (0); + } + printf ("i386-sequent-ptx\n"); exit (0); + +#endif + +#if defined (vax) +# if !defined (ultrix) +# include +# if defined (BSD) +# if BSD == 43 + printf ("vax-dec-bsd4.3\n"); exit (0); +# else +# if BSD == 199006 + printf ("vax-dec-bsd4.3reno\n"); exit (0); +# else + printf ("vax-dec-bsd\n"); exit (0); +# endif +# endif +# else + printf ("vax-dec-bsd\n"); exit (0); +# endif +# else + printf ("vax-dec-ultrix\n"); exit (0); +# endif +#endif + +#if defined (alliant) && defined (i860) + printf ("i860-alliant-bsd\n"); exit (0); +#endif + + exit (1); +} +EOF + +$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` && + { echo "$SYSTEM_NAME"; exit; } + +# Apollos put the system type in the environment. + +test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; } + +# Convex versions that predate uname can use getsysinfo(1) + +if [ -x /usr/convex/getsysinfo ] +then + case `getsysinfo -f cpu_type` in + c1*) + echo c1-convex-bsd + exit ;; + c2*) + if getsysinfo -f scalar_acc + then echo c32-convex-bsd + else echo c2-convex-bsd + fi + exit ;; + c34*) + echo c34-convex-bsd + exit ;; + c38*) + echo c38-convex-bsd + exit ;; + c4*) + echo c4-convex-bsd + exit ;; + esac +fi + +cat >&2 < in order to provide the needed +information to handle your system. + +config.guess timestamp = $timestamp + +uname -m = `(uname -m) 2>/dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null` + +hostinfo = `(hostinfo) 2>/dev/null` +/bin/universe = `(/bin/universe) 2>/dev/null` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` +/bin/arch = `(/bin/arch) 2>/dev/null` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` + +UNAME_MACHINE = ${UNAME_MACHINE} +UNAME_RELEASE = ${UNAME_RELEASE} +UNAME_SYSTEM = ${UNAME_SYSTEM} +UNAME_VERSION = ${UNAME_VERSION} +EOF + +exit 1 + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/shadowsocksr-libev/src/auto/config.rpath b/shadowsocksr-libev/src/auto/config.rpath new file mode 100644 index 000000000..e69de29bb diff --git a/shadowsocksr-libev/src/auto/config.sub b/shadowsocksr-libev/src/auto/config.sub new file mode 100644 index 000000000..9633db704 --- /dev/null +++ b/shadowsocksr-libev/src/auto/config.sub @@ -0,0 +1,1791 @@ +#! /bin/sh +# Configuration validation subroutine script. +# Copyright 1992-2013 Free Software Foundation, Inc. + +timestamp='2013-08-10' + +# This file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, see . +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that +# program. This Exception is an additional permission under section 7 +# of the GNU General Public License, version 3 ("GPLv3"). + + +# Please send patches with a ChangeLog entry to config-patches@gnu.org. +# +# Configuration subroutine to validate and canonicalize a configuration type. +# Supply the specified configuration type as an argument. +# If it is invalid, we print an error message on stderr and exit with code 1. +# Otherwise, we print the canonical config type on stdout and succeed. + +# You can get the latest version of this script from: +# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD + +# This file is supposed to be the same for all GNU packages +# and recognize all the CPU types, system types and aliases +# that are meaningful with *any* GNU software. +# Each package is responsible for reporting which valid configurations +# it does not support. The user should be able to distinguish +# a failure to support a valid configuration from a meaningless +# configuration. + +# The goal of this file is to map all the various variations of a given +# machine specification into a single specification in the form: +# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM +# or in some cases, the newer four-part form: +# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM +# It is wrong to echo any other type of specification. + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] CPU-MFR-OPSYS + $0 [OPTION] ALIAS + +Canonicalize a configuration name. + +Operation modes: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to ." + +version="\ +GNU config.sub ($timestamp) + +Copyright 1992-2013 Free Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit ;; + --version | -v ) + echo "$version" ; exit ;; + --help | --h* | -h ) + echo "$usage"; exit ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" + exit 1 ;; + + *local*) + # First pass through any local machine types. + echo $1 + exit ;; + + * ) + break ;; + esac +done + +case $# in + 0) echo "$me: missing argument$help" >&2 + exit 1;; + 1) ;; + *) echo "$me: too many arguments$help" >&2 + exit 1;; +esac + +# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any). +# Here we must recognize all the valid KERNEL-OS combinations. +maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'` +case $maybe_os in + nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \ + linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \ + knetbsd*-gnu* | netbsd*-gnu* | \ + kopensolaris*-gnu* | \ + storm-chaos* | os2-emx* | rtmk-nova*) + os=-$maybe_os + basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'` + ;; + android-linux) + os=-linux-android + basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown + ;; + *) + basic_machine=`echo $1 | sed 's/-[^-]*$//'` + if [ $basic_machine != $1 ] + then os=`echo $1 | sed 's/.*-/-/'` + else os=; fi + ;; +esac + +### Let's recognize common machines as not being operating systems so +### that things like config.sub decstation-3100 work. We also +### recognize some manufacturers as not being operating systems, so we +### can provide default operating systems below. +case $os in + -sun*os*) + # Prevent following clause from handling this invalid input. + ;; + -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ + -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ + -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ + -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ + -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ + -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ + -apple | -axis | -knuth | -cray | -microblaze*) + os= + basic_machine=$1 + ;; + -bluegene*) + os=-cnk + ;; + -sim | -cisco | -oki | -wec | -winbond) + os= + basic_machine=$1 + ;; + -scout) + ;; + -wrs) + os=-vxworks + basic_machine=$1 + ;; + -chorusos*) + os=-chorusos + basic_machine=$1 + ;; + -chorusrdb) + os=-chorusrdb + basic_machine=$1 + ;; + -hiux*) + os=-hiuxwe2 + ;; + -sco6) + os=-sco5v6 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco5) + os=-sco3.2v5 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco4) + os=-sco3.2v4 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco3.2.[4-9]*) + os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco3.2v[4-9]*) + # Don't forget version if it is 3.2v4 or newer. + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco5v6*) + # Don't forget version if it is 3.2v4 or newer. + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco*) + os=-sco3.2v2 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -udk*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -isc) + os=-isc2.2 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -clix*) + basic_machine=clipper-intergraph + ;; + -isc*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -lynx*178) + os=-lynxos178 + ;; + -lynx*5) + os=-lynxos5 + ;; + -lynx*) + os=-lynxos + ;; + -ptx*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` + ;; + -windowsnt*) + os=`echo $os | sed -e 's/windowsnt/winnt/'` + ;; + -psos*) + os=-psos + ;; + -mint | -mint[0-9]*) + basic_machine=m68k-atari + os=-mint + ;; +esac + +# Decode aliases for certain CPU-COMPANY combinations. +case $basic_machine in + # Recognize the basic CPU types without company name. + # Some are omitted here because they have special meanings below. + 1750a | 580 \ + | a29k \ + | aarch64 | aarch64_be \ + | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ + | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ + | am33_2.0 \ + | arc | arceb \ + | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \ + | avr | avr32 \ + | be32 | be64 \ + | bfin \ + | c4x | c8051 | clipper \ + | d10v | d30v | dlx | dsp16xx \ + | epiphany \ + | fido | fr30 | frv \ + | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ + | hexagon \ + | i370 | i860 | i960 | ia64 \ + | ip2k | iq2000 \ + | le32 | le64 \ + | lm32 \ + | m32c | m32r | m32rle | m68000 | m68k | m88k \ + | maxq | mb | microblaze | microblazeel | mcore | mep | metag \ + | mips | mipsbe | mipseb | mipsel | mipsle \ + | mips16 \ + | mips64 | mips64el \ + | mips64octeon | mips64octeonel \ + | mips64orion | mips64orionel \ + | mips64r5900 | mips64r5900el \ + | mips64vr | mips64vrel \ + | mips64vr4100 | mips64vr4100el \ + | mips64vr4300 | mips64vr4300el \ + | mips64vr5000 | mips64vr5000el \ + | mips64vr5900 | mips64vr5900el \ + | mipsisa32 | mipsisa32el \ + | mipsisa32r2 | mipsisa32r2el \ + | mipsisa64 | mipsisa64el \ + | mipsisa64r2 | mipsisa64r2el \ + | mipsisa64sb1 | mipsisa64sb1el \ + | mipsisa64sr71k | mipsisa64sr71kel \ + | mipsr5900 | mipsr5900el \ + | mipstx39 | mipstx39el \ + | mn10200 | mn10300 \ + | moxie \ + | mt \ + | msp430 \ + | nds32 | nds32le | nds32be \ + | nios | nios2 | nios2eb | nios2el \ + | ns16k | ns32k \ + | open8 \ + | or1k | or32 \ + | pdp10 | pdp11 | pj | pjl \ + | powerpc | powerpc64 | powerpc64le | powerpcle \ + | pyramid \ + | rl78 | rx \ + | score \ + | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ + | sh64 | sh64le \ + | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ + | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ + | spu \ + | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ + | ubicom32 \ + | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ + | we32k \ + | x86 | xc16x | xstormy16 | xtensa \ + | z8k | z80) + basic_machine=$basic_machine-unknown + ;; + c54x) + basic_machine=tic54x-unknown + ;; + c55x) + basic_machine=tic55x-unknown + ;; + c6x) + basic_machine=tic6x-unknown + ;; + m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip) + basic_machine=$basic_machine-unknown + os=-none + ;; + m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) + ;; + ms1) + basic_machine=mt-unknown + ;; + + strongarm | thumb | xscale) + basic_machine=arm-unknown + ;; + xgate) + basic_machine=$basic_machine-unknown + os=-none + ;; + xscaleeb) + basic_machine=armeb-unknown + ;; + + xscaleel) + basic_machine=armel-unknown + ;; + + # We use `pc' rather than `unknown' + # because (1) that's what they normally are, and + # (2) the word "unknown" tends to confuse beginning users. + i*86 | x86_64) + basic_machine=$basic_machine-pc + ;; + # Object if more than one company name word. + *-*-*) + echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 + exit 1 + ;; + # Recognize the basic CPU types with company name. + 580-* \ + | a29k-* \ + | aarch64-* | aarch64_be-* \ + | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ + | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ + | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \ + | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ + | avr-* | avr32-* \ + | be32-* | be64-* \ + | bfin-* | bs2000-* \ + | c[123]* | c30-* | [cjt]90-* | c4x-* \ + | c8051-* | clipper-* | craynv-* | cydra-* \ + | d10v-* | d30v-* | dlx-* \ + | elxsi-* \ + | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ + | h8300-* | h8500-* \ + | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ + | hexagon-* \ + | i*86-* | i860-* | i960-* | ia64-* \ + | ip2k-* | iq2000-* \ + | le32-* | le64-* \ + | lm32-* \ + | m32c-* | m32r-* | m32rle-* \ + | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ + | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \ + | microblaze-* | microblazeel-* \ + | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ + | mips16-* \ + | mips64-* | mips64el-* \ + | mips64octeon-* | mips64octeonel-* \ + | mips64orion-* | mips64orionel-* \ + | mips64r5900-* | mips64r5900el-* \ + | mips64vr-* | mips64vrel-* \ + | mips64vr4100-* | mips64vr4100el-* \ + | mips64vr4300-* | mips64vr4300el-* \ + | mips64vr5000-* | mips64vr5000el-* \ + | mips64vr5900-* | mips64vr5900el-* \ + | mipsisa32-* | mipsisa32el-* \ + | mipsisa32r2-* | mipsisa32r2el-* \ + | mipsisa64-* | mipsisa64el-* \ + | mipsisa64r2-* | mipsisa64r2el-* \ + | mipsisa64sb1-* | mipsisa64sb1el-* \ + | mipsisa64sr71k-* | mipsisa64sr71kel-* \ + | mipsr5900-* | mipsr5900el-* \ + | mipstx39-* | mipstx39el-* \ + | mmix-* \ + | mt-* \ + | msp430-* \ + | nds32-* | nds32le-* | nds32be-* \ + | nios-* | nios2-* | nios2eb-* | nios2el-* \ + | none-* | np1-* | ns16k-* | ns32k-* \ + | open8-* \ + | orion-* \ + | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ + | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ + | pyramid-* \ + | rl78-* | romp-* | rs6000-* | rx-* \ + | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ + | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ + | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ + | sparclite-* \ + | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \ + | tahoe-* \ + | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ + | tile*-* \ + | tron-* \ + | ubicom32-* \ + | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ + | vax-* \ + | we32k-* \ + | x86-* | x86_64-* | xc16x-* | xps100-* \ + | xstormy16-* | xtensa*-* \ + | ymp-* \ + | z8k-* | z80-*) + ;; + # Recognize the basic CPU types without company name, with glob match. + xtensa*) + basic_machine=$basic_machine-unknown + ;; + # Recognize the various machine names and aliases which stand + # for a CPU type and a company and sometimes even an OS. + 386bsd) + basic_machine=i386-unknown + os=-bsd + ;; + 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) + basic_machine=m68000-att + ;; + 3b*) + basic_machine=we32k-att + ;; + a29khif) + basic_machine=a29k-amd + os=-udi + ;; + abacus) + basic_machine=abacus-unknown + ;; + adobe68k) + basic_machine=m68010-adobe + os=-scout + ;; + alliant | fx80) + basic_machine=fx80-alliant + ;; + altos | altos3068) + basic_machine=m68k-altos + ;; + am29k) + basic_machine=a29k-none + os=-bsd + ;; + amd64) + basic_machine=x86_64-pc + ;; + amd64-*) + basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + amdahl) + basic_machine=580-amdahl + os=-sysv + ;; + amiga | amiga-*) + basic_machine=m68k-unknown + ;; + amigaos | amigados) + basic_machine=m68k-unknown + os=-amigaos + ;; + amigaunix | amix) + basic_machine=m68k-unknown + os=-sysv4 + ;; + apollo68) + basic_machine=m68k-apollo + os=-sysv + ;; + apollo68bsd) + basic_machine=m68k-apollo + os=-bsd + ;; + aros) + basic_machine=i386-pc + os=-aros + ;; + aux) + basic_machine=m68k-apple + os=-aux + ;; + balance) + basic_machine=ns32k-sequent + os=-dynix + ;; + blackfin) + basic_machine=bfin-unknown + os=-linux + ;; + blackfin-*) + basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'` + os=-linux + ;; + bluegene*) + basic_machine=powerpc-ibm + os=-cnk + ;; + c54x-*) + basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + c55x-*) + basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + c6x-*) + basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + c90) + basic_machine=c90-cray + os=-unicos + ;; + cegcc) + basic_machine=arm-unknown + os=-cegcc + ;; + convex-c1) + basic_machine=c1-convex + os=-bsd + ;; + convex-c2) + basic_machine=c2-convex + os=-bsd + ;; + convex-c32) + basic_machine=c32-convex + os=-bsd + ;; + convex-c34) + basic_machine=c34-convex + os=-bsd + ;; + convex-c38) + basic_machine=c38-convex + os=-bsd + ;; + cray | j90) + basic_machine=j90-cray + os=-unicos + ;; + craynv) + basic_machine=craynv-cray + os=-unicosmp + ;; + cr16 | cr16-*) + basic_machine=cr16-unknown + os=-elf + ;; + crds | unos) + basic_machine=m68k-crds + ;; + crisv32 | crisv32-* | etraxfs*) + basic_machine=crisv32-axis + ;; + cris | cris-* | etrax*) + basic_machine=cris-axis + ;; + crx) + basic_machine=crx-unknown + os=-elf + ;; + da30 | da30-*) + basic_machine=m68k-da30 + ;; + decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) + basic_machine=mips-dec + ;; + decsystem10* | dec10*) + basic_machine=pdp10-dec + os=-tops10 + ;; + decsystem20* | dec20*) + basic_machine=pdp10-dec + os=-tops20 + ;; + delta | 3300 | motorola-3300 | motorola-delta \ + | 3300-motorola | delta-motorola) + basic_machine=m68k-motorola + ;; + delta88) + basic_machine=m88k-motorola + os=-sysv3 + ;; + dicos) + basic_machine=i686-pc + os=-dicos + ;; + djgpp) + basic_machine=i586-pc + os=-msdosdjgpp + ;; + dpx20 | dpx20-*) + basic_machine=rs6000-bull + os=-bosx + ;; + dpx2* | dpx2*-bull) + basic_machine=m68k-bull + os=-sysv3 + ;; + ebmon29k) + basic_machine=a29k-amd + os=-ebmon + ;; + elxsi) + basic_machine=elxsi-elxsi + os=-bsd + ;; + encore | umax | mmax) + basic_machine=ns32k-encore + ;; + es1800 | OSE68k | ose68k | ose | OSE) + basic_machine=m68k-ericsson + os=-ose + ;; + fx2800) + basic_machine=i860-alliant + ;; + genix) + basic_machine=ns32k-ns + ;; + gmicro) + basic_machine=tron-gmicro + os=-sysv + ;; + go32) + basic_machine=i386-pc + os=-go32 + ;; + h3050r* | hiux*) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + h8300hms) + basic_machine=h8300-hitachi + os=-hms + ;; + h8300xray) + basic_machine=h8300-hitachi + os=-xray + ;; + h8500hms) + basic_machine=h8500-hitachi + os=-hms + ;; + harris) + basic_machine=m88k-harris + os=-sysv3 + ;; + hp300-*) + basic_machine=m68k-hp + ;; + hp300bsd) + basic_machine=m68k-hp + os=-bsd + ;; + hp300hpux) + basic_machine=m68k-hp + os=-hpux + ;; + hp3k9[0-9][0-9] | hp9[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hp9k2[0-9][0-9] | hp9k31[0-9]) + basic_machine=m68000-hp + ;; + hp9k3[2-9][0-9]) + basic_machine=m68k-hp + ;; + hp9k6[0-9][0-9] | hp6[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hp9k7[0-79][0-9] | hp7[0-79][0-9]) + basic_machine=hppa1.1-hp + ;; + hp9k78[0-9] | hp78[0-9]) + # FIXME: really hppa2.0-hp + basic_machine=hppa1.1-hp + ;; + hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) + # FIXME: really hppa2.0-hp + basic_machine=hppa1.1-hp + ;; + hp9k8[0-9][13679] | hp8[0-9][13679]) + basic_machine=hppa1.1-hp + ;; + hp9k8[0-9][0-9] | hp8[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hppa-next) + os=-nextstep3 + ;; + hppaosf) + basic_machine=hppa1.1-hp + os=-osf + ;; + hppro) + basic_machine=hppa1.1-hp + os=-proelf + ;; + i370-ibm* | ibm*) + basic_machine=i370-ibm + ;; + i*86v32) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv32 + ;; + i*86v4*) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv4 + ;; + i*86v) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv + ;; + i*86sol2) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-solaris2 + ;; + i386mach) + basic_machine=i386-mach + os=-mach + ;; + i386-vsta | vsta) + basic_machine=i386-unknown + os=-vsta + ;; + iris | iris4d) + basic_machine=mips-sgi + case $os in + -irix*) + ;; + *) + os=-irix4 + ;; + esac + ;; + isi68 | isi) + basic_machine=m68k-isi + os=-sysv + ;; + m68knommu) + basic_machine=m68k-unknown + os=-linux + ;; + m68knommu-*) + basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'` + os=-linux + ;; + m88k-omron*) + basic_machine=m88k-omron + ;; + magnum | m3230) + basic_machine=mips-mips + os=-sysv + ;; + merlin) + basic_machine=ns32k-utek + os=-sysv + ;; + microblaze*) + basic_machine=microblaze-xilinx + ;; + mingw64) + basic_machine=x86_64-pc + os=-mingw64 + ;; + mingw32) + basic_machine=i686-pc + os=-mingw32 + ;; + mingw32ce) + basic_machine=arm-unknown + os=-mingw32ce + ;; + miniframe) + basic_machine=m68000-convergent + ;; + *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) + basic_machine=m68k-atari + os=-mint + ;; + mips3*-*) + basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` + ;; + mips3*) + basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown + ;; + monitor) + basic_machine=m68k-rom68k + os=-coff + ;; + morphos) + basic_machine=powerpc-unknown + os=-morphos + ;; + msdos) + basic_machine=i386-pc + os=-msdos + ;; + ms1-*) + basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'` + ;; + msys) + basic_machine=i686-pc + os=-msys + ;; + mvs) + basic_machine=i370-ibm + os=-mvs + ;; + nacl) + basic_machine=le32-unknown + os=-nacl + ;; + ncr3000) + basic_machine=i486-ncr + os=-sysv4 + ;; + netbsd386) + basic_machine=i386-unknown + os=-netbsd + ;; + netwinder) + basic_machine=armv4l-rebel + os=-linux + ;; + news | news700 | news800 | news900) + basic_machine=m68k-sony + os=-newsos + ;; + news1000) + basic_machine=m68030-sony + os=-newsos + ;; + news-3600 | risc-news) + basic_machine=mips-sony + os=-newsos + ;; + necv70) + basic_machine=v70-nec + os=-sysv + ;; + next | m*-next ) + basic_machine=m68k-next + case $os in + -nextstep* ) + ;; + -ns2*) + os=-nextstep2 + ;; + *) + os=-nextstep3 + ;; + esac + ;; + nh3000) + basic_machine=m68k-harris + os=-cxux + ;; + nh[45]000) + basic_machine=m88k-harris + os=-cxux + ;; + nindy960) + basic_machine=i960-intel + os=-nindy + ;; + mon960) + basic_machine=i960-intel + os=-mon960 + ;; + nonstopux) + basic_machine=mips-compaq + os=-nonstopux + ;; + np1) + basic_machine=np1-gould + ;; + neo-tandem) + basic_machine=neo-tandem + ;; + nse-tandem) + basic_machine=nse-tandem + ;; + nsr-tandem) + basic_machine=nsr-tandem + ;; + op50n-* | op60c-*) + basic_machine=hppa1.1-oki + os=-proelf + ;; + openrisc | openrisc-*) + basic_machine=or32-unknown + ;; + os400) + basic_machine=powerpc-ibm + os=-os400 + ;; + OSE68000 | ose68000) + basic_machine=m68000-ericsson + os=-ose + ;; + os68k) + basic_machine=m68k-none + os=-os68k + ;; + pa-hitachi) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + paragon) + basic_machine=i860-intel + os=-osf + ;; + parisc) + basic_machine=hppa-unknown + os=-linux + ;; + parisc-*) + basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'` + os=-linux + ;; + pbd) + basic_machine=sparc-tti + ;; + pbb) + basic_machine=m68k-tti + ;; + pc532 | pc532-*) + basic_machine=ns32k-pc532 + ;; + pc98) + basic_machine=i386-pc + ;; + pc98-*) + basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentium | p5 | k5 | k6 | nexgen | viac3) + basic_machine=i586-pc + ;; + pentiumpro | p6 | 6x86 | athlon | athlon_*) + basic_machine=i686-pc + ;; + pentiumii | pentium2 | pentiumiii | pentium3) + basic_machine=i686-pc + ;; + pentium4) + basic_machine=i786-pc + ;; + pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) + basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentiumpro-* | p6-* | 6x86-* | athlon-*) + basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) + basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentium4-*) + basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pn) + basic_machine=pn-gould + ;; + power) basic_machine=power-ibm + ;; + ppc | ppcbe) basic_machine=powerpc-unknown + ;; + ppc-* | ppcbe-*) + basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppcle | powerpclittle | ppc-le | powerpc-little) + basic_machine=powerpcle-unknown + ;; + ppcle-* | powerpclittle-*) + basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppc64) basic_machine=powerpc64-unknown + ;; + ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppc64le | powerpc64little | ppc64-le | powerpc64-little) + basic_machine=powerpc64le-unknown + ;; + ppc64le-* | powerpc64little-*) + basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ps2) + basic_machine=i386-ibm + ;; + pw32) + basic_machine=i586-unknown + os=-pw32 + ;; + rdos | rdos64) + basic_machine=x86_64-pc + os=-rdos + ;; + rdos32) + basic_machine=i386-pc + os=-rdos + ;; + rom68k) + basic_machine=m68k-rom68k + os=-coff + ;; + rm[46]00) + basic_machine=mips-siemens + ;; + rtpc | rtpc-*) + basic_machine=romp-ibm + ;; + s390 | s390-*) + basic_machine=s390-ibm + ;; + s390x | s390x-*) + basic_machine=s390x-ibm + ;; + sa29200) + basic_machine=a29k-amd + os=-udi + ;; + sb1) + basic_machine=mipsisa64sb1-unknown + ;; + sb1el) + basic_machine=mipsisa64sb1el-unknown + ;; + sde) + basic_machine=mipsisa32-sde + os=-elf + ;; + sei) + basic_machine=mips-sei + os=-seiux + ;; + sequent) + basic_machine=i386-sequent + ;; + sh) + basic_machine=sh-hitachi + os=-hms + ;; + sh5el) + basic_machine=sh5le-unknown + ;; + sh64) + basic_machine=sh64-unknown + ;; + sparclite-wrs | simso-wrs) + basic_machine=sparclite-wrs + os=-vxworks + ;; + sps7) + basic_machine=m68k-bull + os=-sysv2 + ;; + spur) + basic_machine=spur-unknown + ;; + st2000) + basic_machine=m68k-tandem + ;; + stratus) + basic_machine=i860-stratus + os=-sysv4 + ;; + strongarm-* | thumb-*) + basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + sun2) + basic_machine=m68000-sun + ;; + sun2os3) + basic_machine=m68000-sun + os=-sunos3 + ;; + sun2os4) + basic_machine=m68000-sun + os=-sunos4 + ;; + sun3os3) + basic_machine=m68k-sun + os=-sunos3 + ;; + sun3os4) + basic_machine=m68k-sun + os=-sunos4 + ;; + sun4os3) + basic_machine=sparc-sun + os=-sunos3 + ;; + sun4os4) + basic_machine=sparc-sun + os=-sunos4 + ;; + sun4sol2) + basic_machine=sparc-sun + os=-solaris2 + ;; + sun3 | sun3-*) + basic_machine=m68k-sun + ;; + sun4) + basic_machine=sparc-sun + ;; + sun386 | sun386i | roadrunner) + basic_machine=i386-sun + ;; + sv1) + basic_machine=sv1-cray + os=-unicos + ;; + symmetry) + basic_machine=i386-sequent + os=-dynix + ;; + t3e) + basic_machine=alphaev5-cray + os=-unicos + ;; + t90) + basic_machine=t90-cray + os=-unicos + ;; + tile*) + basic_machine=$basic_machine-unknown + os=-linux-gnu + ;; + tx39) + basic_machine=mipstx39-unknown + ;; + tx39el) + basic_machine=mipstx39el-unknown + ;; + toad1) + basic_machine=pdp10-xkl + os=-tops20 + ;; + tower | tower-32) + basic_machine=m68k-ncr + ;; + tpf) + basic_machine=s390x-ibm + os=-tpf + ;; + udi29k) + basic_machine=a29k-amd + os=-udi + ;; + ultra3) + basic_machine=a29k-nyu + os=-sym1 + ;; + v810 | necv810) + basic_machine=v810-nec + os=-none + ;; + vaxv) + basic_machine=vax-dec + os=-sysv + ;; + vms) + basic_machine=vax-dec + os=-vms + ;; + vpp*|vx|vx-*) + basic_machine=f301-fujitsu + ;; + vxworks960) + basic_machine=i960-wrs + os=-vxworks + ;; + vxworks68) + basic_machine=m68k-wrs + os=-vxworks + ;; + vxworks29k) + basic_machine=a29k-wrs + os=-vxworks + ;; + w65*) + basic_machine=w65-wdc + os=-none + ;; + w89k-*) + basic_machine=hppa1.1-winbond + os=-proelf + ;; + xbox) + basic_machine=i686-pc + os=-mingw32 + ;; + xps | xps100) + basic_machine=xps100-honeywell + ;; + xscale-* | xscalee[bl]-*) + basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'` + ;; + ymp) + basic_machine=ymp-cray + os=-unicos + ;; + z8k-*-coff) + basic_machine=z8k-unknown + os=-sim + ;; + z80-*-coff) + basic_machine=z80-unknown + os=-sim + ;; + none) + basic_machine=none-none + os=-none + ;; + +# Here we handle the default manufacturer of certain CPU types. It is in +# some cases the only manufacturer, in others, it is the most popular. + w89k) + basic_machine=hppa1.1-winbond + ;; + op50n) + basic_machine=hppa1.1-oki + ;; + op60c) + basic_machine=hppa1.1-oki + ;; + romp) + basic_machine=romp-ibm + ;; + mmix) + basic_machine=mmix-knuth + ;; + rs6000) + basic_machine=rs6000-ibm + ;; + vax) + basic_machine=vax-dec + ;; + pdp10) + # there are many clones, so DEC is not a safe bet + basic_machine=pdp10-unknown + ;; + pdp11) + basic_machine=pdp11-dec + ;; + we32k) + basic_machine=we32k-att + ;; + sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele) + basic_machine=sh-unknown + ;; + sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v) + basic_machine=sparc-sun + ;; + cydra) + basic_machine=cydra-cydrome + ;; + orion) + basic_machine=orion-highlevel + ;; + orion105) + basic_machine=clipper-highlevel + ;; + mac | mpw | mac-mpw) + basic_machine=m68k-apple + ;; + pmac | pmac-mpw) + basic_machine=powerpc-apple + ;; + *-unknown) + # Make sure to match an already-canonicalized machine name. + ;; + *) + echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 + exit 1 + ;; +esac + +# Here we canonicalize certain aliases for manufacturers. +case $basic_machine in + *-digital*) + basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'` + ;; + *-commodore*) + basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'` + ;; + *) + ;; +esac + +# Decode manufacturer-specific aliases for certain operating systems. + +if [ x"$os" != x"" ] +then +case $os in + # First match some system type aliases + # that might get confused with valid system types. + # -solaris* is a basic system type, with this one exception. + -auroraux) + os=-auroraux + ;; + -solaris1 | -solaris1.*) + os=`echo $os | sed -e 's|solaris1|sunos4|'` + ;; + -solaris) + os=-solaris2 + ;; + -svr4*) + os=-sysv4 + ;; + -unixware*) + os=-sysv4.2uw + ;; + -gnu/linux*) + os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'` + ;; + # First accept the basic system types. + # The portable systems comes first. + # Each alternative MUST END IN A *, to match a version number. + # -sysv* is not here because it comes later, after sysvr4. + -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \ + | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\ + | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \ + | -sym* | -kopensolaris* | -plan9* \ + | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \ + | -aos* | -aros* \ + | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \ + | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \ + | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \ + | -bitrig* | -openbsd* | -solidbsd* \ + | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \ + | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \ + | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ + | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \ + | -chorusos* | -chorusrdb* | -cegcc* \ + | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ + | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \ + | -linux-newlib* | -linux-musl* | -linux-uclibc* \ + | -uxpv* | -beos* | -mpeix* | -udk* \ + | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \ + | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \ + | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \ + | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \ + | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \ + | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \ + | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*) + # Remember, each alternative MUST END IN *, to match a version number. + ;; + -qnx*) + case $basic_machine in + x86-* | i*86-*) + ;; + *) + os=-nto$os + ;; + esac + ;; + -nto-qnx*) + ;; + -nto*) + os=`echo $os | sed -e 's|nto|nto-qnx|'` + ;; + -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \ + | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \ + | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*) + ;; + -mac*) + os=`echo $os | sed -e 's|mac|macos|'` + ;; + -linux-dietlibc) + os=-linux-dietlibc + ;; + -linux*) + os=`echo $os | sed -e 's|linux|linux-gnu|'` + ;; + -sunos5*) + os=`echo $os | sed -e 's|sunos5|solaris2|'` + ;; + -sunos6*) + os=`echo $os | sed -e 's|sunos6|solaris3|'` + ;; + -opened*) + os=-openedition + ;; + -os400*) + os=-os400 + ;; + -wince*) + os=-wince + ;; + -osfrose*) + os=-osfrose + ;; + -osf*) + os=-osf + ;; + -utek*) + os=-bsd + ;; + -dynix*) + os=-bsd + ;; + -acis*) + os=-aos + ;; + -atheos*) + os=-atheos + ;; + -syllable*) + os=-syllable + ;; + -386bsd) + os=-bsd + ;; + -ctix* | -uts*) + os=-sysv + ;; + -nova*) + os=-rtmk-nova + ;; + -ns2 ) + os=-nextstep2 + ;; + -nsk*) + os=-nsk + ;; + # Preserve the version number of sinix5. + -sinix5.*) + os=`echo $os | sed -e 's|sinix|sysv|'` + ;; + -sinix*) + os=-sysv4 + ;; + -tpf*) + os=-tpf + ;; + -triton*) + os=-sysv3 + ;; + -oss*) + os=-sysv3 + ;; + -svr4) + os=-sysv4 + ;; + -svr3) + os=-sysv3 + ;; + -sysvr4) + os=-sysv4 + ;; + # This must come after -sysvr4. + -sysv*) + ;; + -ose*) + os=-ose + ;; + -es1800*) + os=-ose + ;; + -xenix) + os=-xenix + ;; + -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) + os=-mint + ;; + -aros*) + os=-aros + ;; + -zvmoe) + os=-zvmoe + ;; + -dicos*) + os=-dicos + ;; + -nacl*) + ;; + -none) + ;; + *) + # Get rid of the `-' at the beginning of $os. + os=`echo $os | sed 's/[^-]*-//'` + echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2 + exit 1 + ;; +esac +else + +# Here we handle the default operating systems that come with various machines. +# The value should be what the vendor currently ships out the door with their +# machine or put another way, the most popular os provided with the machine. + +# Note that if you're going to try to match "-MANUFACTURER" here (say, +# "-sun"), then you have to tell the case statement up towards the top +# that MANUFACTURER isn't an operating system. Otherwise, code above +# will signal an error saying that MANUFACTURER isn't an operating +# system, and we'll never get to this point. + +case $basic_machine in + score-*) + os=-elf + ;; + spu-*) + os=-elf + ;; + *-acorn) + os=-riscix1.2 + ;; + arm*-rebel) + os=-linux + ;; + arm*-semi) + os=-aout + ;; + c4x-* | tic4x-*) + os=-coff + ;; + c8051-*) + os=-elf + ;; + hexagon-*) + os=-elf + ;; + tic54x-*) + os=-coff + ;; + tic55x-*) + os=-coff + ;; + tic6x-*) + os=-coff + ;; + # This must come before the *-dec entry. + pdp10-*) + os=-tops20 + ;; + pdp11-*) + os=-none + ;; + *-dec | vax-*) + os=-ultrix4.2 + ;; + m68*-apollo) + os=-domain + ;; + i386-sun) + os=-sunos4.0.2 + ;; + m68000-sun) + os=-sunos3 + ;; + m68*-cisco) + os=-aout + ;; + mep-*) + os=-elf + ;; + mips*-cisco) + os=-elf + ;; + mips*-*) + os=-elf + ;; + or1k-*) + os=-elf + ;; + or32-*) + os=-coff + ;; + *-tti) # must be before sparc entry or we get the wrong os. + os=-sysv3 + ;; + sparc-* | *-sun) + os=-sunos4.1.1 + ;; + *-be) + os=-beos + ;; + *-haiku) + os=-haiku + ;; + *-ibm) + os=-aix + ;; + *-knuth) + os=-mmixware + ;; + *-wec) + os=-proelf + ;; + *-winbond) + os=-proelf + ;; + *-oki) + os=-proelf + ;; + *-hp) + os=-hpux + ;; + *-hitachi) + os=-hiux + ;; + i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent) + os=-sysv + ;; + *-cbm) + os=-amigaos + ;; + *-dg) + os=-dgux + ;; + *-dolphin) + os=-sysv3 + ;; + m68k-ccur) + os=-rtu + ;; + m88k-omron*) + os=-luna + ;; + *-next ) + os=-nextstep + ;; + *-sequent) + os=-ptx + ;; + *-crds) + os=-unos + ;; + *-ns) + os=-genix + ;; + i370-*) + os=-mvs + ;; + *-next) + os=-nextstep3 + ;; + *-gould) + os=-sysv + ;; + *-highlevel) + os=-bsd + ;; + *-encore) + os=-bsd + ;; + *-sgi) + os=-irix + ;; + *-siemens) + os=-sysv4 + ;; + *-masscomp) + os=-rtu + ;; + f30[01]-fujitsu | f700-fujitsu) + os=-uxpv + ;; + *-rom68k) + os=-coff + ;; + *-*bug) + os=-coff + ;; + *-apple) + os=-macos + ;; + *-atari*) + os=-mint + ;; + *) + os=-none + ;; +esac +fi + +# Here we handle the case where we know the os, and the CPU type, but not the +# manufacturer. We pick the logical manufacturer. +vendor=unknown +case $basic_machine in + *-unknown) + case $os in + -riscix*) + vendor=acorn + ;; + -sunos*) + vendor=sun + ;; + -cnk*|-aix*) + vendor=ibm + ;; + -beos*) + vendor=be + ;; + -hpux*) + vendor=hp + ;; + -mpeix*) + vendor=hp + ;; + -hiux*) + vendor=hitachi + ;; + -unos*) + vendor=crds + ;; + -dgux*) + vendor=dg + ;; + -luna*) + vendor=omron + ;; + -genix*) + vendor=ns + ;; + -mvs* | -opened*) + vendor=ibm + ;; + -os400*) + vendor=ibm + ;; + -ptx*) + vendor=sequent + ;; + -tpf*) + vendor=ibm + ;; + -vxsim* | -vxworks* | -windiss*) + vendor=wrs + ;; + -aux*) + vendor=apple + ;; + -hms*) + vendor=hitachi + ;; + -mpw* | -macos*) + vendor=apple + ;; + -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) + vendor=atari + ;; + -vos*) + vendor=stratus + ;; + esac + basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"` + ;; +esac + +echo $basic_machine$os +exit + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/shadowsocksr-libev/src/auto/depcomp b/shadowsocksr-libev/src/auto/depcomp new file mode 100644 index 000000000..4ebd5b3a2 --- /dev/null +++ b/shadowsocksr-libev/src/auto/depcomp @@ -0,0 +1,791 @@ +#! /bin/sh +# depcomp - compile a program generating dependencies as side-effects + +scriptversion=2013-05-30.07; # UTC + +# Copyright (C) 1999-2013 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Originally written by Alexandre Oliva . + +case $1 in + '') + echo "$0: No command. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: depcomp [--help] [--version] PROGRAM [ARGS] + +Run PROGRAMS ARGS to compile a file, generating dependencies +as side-effects. + +Environment variables: + depmode Dependency tracking mode. + source Source file read by 'PROGRAMS ARGS'. + object Object file output by 'PROGRAMS ARGS'. + DEPDIR directory where to store dependencies. + depfile Dependency file to output. + tmpdepfile Temporary file to use when outputting dependencies. + libtool Whether libtool is used (yes/no). + +Report bugs to . +EOF + exit $? + ;; + -v | --v*) + echo "depcomp $scriptversion" + exit $? + ;; +esac + +# Get the directory component of the given path, and save it in the +# global variables '$dir'. Note that this directory component will +# be either empty or ending with a '/' character. This is deliberate. +set_dir_from () +{ + case $1 in + */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; + *) dir=;; + esac +} + +# Get the suffix-stripped basename of the given path, and save it the +# global variable '$base'. +set_base_from () +{ + base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` +} + +# If no dependency file was actually created by the compiler invocation, +# we still have to create a dummy depfile, to avoid errors with the +# Makefile "include basename.Plo" scheme. +make_dummy_depfile () +{ + echo "#dummy" > "$depfile" +} + +# Factor out some common post-processing of the generated depfile. +# Requires the auxiliary global variable '$tmpdepfile' to be set. +aix_post_process_depfile () +{ + # If the compiler actually managed to produce a dependency file, + # post-process it. + if test -f "$tmpdepfile"; then + # Each line is of the form 'foo.o: dependency.h'. + # Do two passes, one to just change these to + # $object: dependency.h + # and one to simply output + # dependency.h: + # which is needed to avoid the deleted-header problem. + { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" + sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" + } > "$depfile" + rm -f "$tmpdepfile" + else + make_dummy_depfile + fi +} + +# A tabulation character. +tab=' ' +# A newline character. +nl=' +' +# Character ranges might be problematic outside the C locale. +# These definitions help. +upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ +lower=abcdefghijklmnopqrstuvwxyz +digits=0123456789 +alpha=${upper}${lower} + +if test -z "$depmode" || test -z "$source" || test -z "$object"; then + echo "depcomp: Variables source, object and depmode must be set" 1>&2 + exit 1 +fi + +# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. +depfile=${depfile-`echo "$object" | + sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} +tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} + +rm -f "$tmpdepfile" + +# Avoid interferences from the environment. +gccflag= dashmflag= + +# Some modes work just like other modes, but use different flags. We +# parameterize here, but still list the modes in the big case below, +# to make depend.m4 easier to write. Note that we *cannot* use a case +# here, because this file can only contain one case statement. +if test "$depmode" = hp; then + # HP compiler uses -M and no extra arg. + gccflag=-M + depmode=gcc +fi + +if test "$depmode" = dashXmstdout; then + # This is just like dashmstdout with a different argument. + dashmflag=-xM + depmode=dashmstdout +fi + +cygpath_u="cygpath -u -f -" +if test "$depmode" = msvcmsys; then + # This is just like msvisualcpp but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvisualcpp +fi + +if test "$depmode" = msvc7msys; then + # This is just like msvc7 but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvc7 +fi + +if test "$depmode" = xlc; then + # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. + gccflag=-qmakedep=gcc,-MF + depmode=gcc +fi + +case "$depmode" in +gcc3) +## gcc 3 implements dependency tracking that does exactly what +## we want. Yay! Note: for some reason libtool 1.4 doesn't like +## it if -MD -MP comes after the -MF stuff. Hmm. +## Unfortunately, FreeBSD c89 acceptance of flags depends upon +## the command line argument order; so add the flags where they +## appear in depend2.am. Note that the slowdown incurred here +## affects only configure: in makefiles, %FASTDEP% shortcuts this. + for arg + do + case $arg in + -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; + *) set fnord "$@" "$arg" ;; + esac + shift # fnord + shift # $arg + done + "$@" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + mv "$tmpdepfile" "$depfile" + ;; + +gcc) +## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. +## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. +## (see the conditional assignment to $gccflag above). +## There are various ways to get dependency output from gcc. Here's +## why we pick this rather obscure method: +## - Don't want to use -MD because we'd like the dependencies to end +## up in a subdir. Having to rename by hand is ugly. +## (We might end up doing this anyway to support other compilers.) +## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like +## -MM, not -M (despite what the docs say). Also, it might not be +## supported by the other compilers which use the 'gcc' depmode. +## - Using -M directly means running the compiler twice (even worse +## than renaming). + if test -z "$gccflag"; then + gccflag=-MD, + fi + "$@" -Wp,"$gccflag$tmpdepfile" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The second -e expression handles DOS-style file names with drive + # letters. + sed -e 's/^[^:]*: / /' \ + -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" +## This next piece of magic avoids the "deleted header file" problem. +## The problem is that when a header file which appears in a .P file +## is deleted, the dependency causes make to die (because there is +## typically no way to rebuild the header). We avoid this by adding +## dummy dependencies for each header file. Too bad gcc doesn't do +## this for us directly. +## Some versions of gcc put a space before the ':'. On the theory +## that the space means something, we add a space to the output as +## well. hp depmode also adds that space, but also prefixes the VPATH +## to the object. Take care to not repeat it in the output. +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +sgi) + if test "$libtool" = yes; then + "$@" "-Wp,-MDupdate,$tmpdepfile" + else + "$@" -MDupdate "$tmpdepfile" + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + + if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files + echo "$object : \\" > "$depfile" + # Clip off the initial element (the dependent). Don't try to be + # clever and replace this with sed code, as IRIX sed won't handle + # lines with more than a fixed number of characters (4096 in + # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; + # the IRIX cc adds comments like '#:fec' to the end of the + # dependency line. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ + | tr "$nl" ' ' >> "$depfile" + echo >> "$depfile" + # The second pass generates a dummy entry for each header file. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ + >> "$depfile" + else + make_dummy_depfile + fi + rm -f "$tmpdepfile" + ;; + +xlc) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +aix) + # The C for AIX Compiler uses -M and outputs the dependencies + # in a .u file. In older versions, this file always lives in the + # current directory. Also, the AIX compiler puts '$object:' at the + # start of each line; $object doesn't have directory information. + # Version 6 uses the directory in both cases. + set_dir_from "$object" + set_base_from "$object" + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.u + tmpdepfile2=$base.u + tmpdepfile3=$dir.libs/$base.u + "$@" -Wc,-M + else + tmpdepfile1=$dir$base.u + tmpdepfile2=$dir$base.u + tmpdepfile3=$dir$base.u + "$@" -M + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + aix_post_process_depfile + ;; + +tcc) + # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 + # FIXME: That version still under development at the moment of writing. + # Make that this statement remains true also for stable, released + # versions. + # It will wrap lines (doesn't matter whether long or short) with a + # trailing '\', as in: + # + # foo.o : \ + # foo.c \ + # foo.h \ + # + # It will put a trailing '\' even on the last line, and will use leading + # spaces rather than leading tabs (at least since its commit 0394caf7 + # "Emit spaces for -MD"). + "$@" -MD -MF "$tmpdepfile" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. + # We have to change lines of the first kind to '$object: \'. + sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" + # And for each line of the second kind, we have to emit a 'dep.h:' + # dummy dependency, to avoid the deleted-header problem. + sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" + rm -f "$tmpdepfile" + ;; + +## The order of this option in the case statement is important, since the +## shell code in configure will try each of these formats in the order +## listed in this file. A plain '-MD' option would be understood by many +## compilers, so we must ensure this comes after the gcc and icc options. +pgcc) + # Portland's C compiler understands '-MD'. + # Will always output deps to 'file.d' where file is the root name of the + # source file under compilation, even if file resides in a subdirectory. + # The object file name does not affect the name of the '.d' file. + # pgcc 10.2 will output + # foo.o: sub/foo.c sub/foo.h + # and will wrap long lines using '\' : + # foo.o: sub/foo.c ... \ + # sub/foo.h ... \ + # ... + set_dir_from "$object" + # Use the source, not the object, to determine the base name, since + # that's sadly what pgcc will do too. + set_base_from "$source" + tmpdepfile=$base.d + + # For projects that build the same source file twice into different object + # files, the pgcc approach of using the *source* file root name can cause + # problems in parallel builds. Use a locking strategy to avoid stomping on + # the same $tmpdepfile. + lockdir=$base.d-lock + trap " + echo '$0: caught signal, cleaning up...' >&2 + rmdir '$lockdir' + exit 1 + " 1 2 13 15 + numtries=100 + i=$numtries + while test $i -gt 0; do + # mkdir is a portable test-and-set. + if mkdir "$lockdir" 2>/dev/null; then + # This process acquired the lock. + "$@" -MD + stat=$? + # Release the lock. + rmdir "$lockdir" + break + else + # If the lock is being held by a different process, wait + # until the winning process is done or we timeout. + while test -d "$lockdir" && test $i -gt 0; do + sleep 1 + i=`expr $i - 1` + done + fi + i=`expr $i - 1` + done + trap - 1 2 13 15 + if test $i -le 0; then + echo "$0: failed to acquire lock after $numtries attempts" >&2 + echo "$0: check lockdir '$lockdir'" >&2 + exit 1 + fi + + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each line is of the form `foo.o: dependent.h', + # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. + # Do two passes, one to just change these to + # `$object: dependent.h' and one to simply `dependent.h:'. + sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp2) + # The "hp" stanza above does not work with aCC (C++) and HP's ia64 + # compilers, which have integrated preprocessors. The correct option + # to use with these is +Maked; it writes dependencies to a file named + # 'foo.d', which lands next to the object file, wherever that + # happens to be. + # Much of this is similar to the tru64 case; see comments there. + set_dir_from "$object" + set_base_from "$object" + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir.libs/$base.d + "$@" -Wc,+Maked + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + "$@" +Maked + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" + do + test -f "$tmpdepfile" && break + done + if test -f "$tmpdepfile"; then + sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile" + # Add 'dependent.h:' lines. + sed -ne '2,${ + s/^ *// + s/ \\*$// + s/$/:/ + p + }' "$tmpdepfile" >> "$depfile" + else + make_dummy_depfile + fi + rm -f "$tmpdepfile" "$tmpdepfile2" + ;; + +tru64) + # The Tru64 compiler uses -MD to generate dependencies as a side + # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'. + # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put + # dependencies in 'foo.d' instead, so we check for that too. + # Subdirectories are respected. + set_dir_from "$object" + set_base_from "$object" + + if test "$libtool" = yes; then + # Libtool generates 2 separate objects for the 2 libraries. These + # two compilations output dependencies in $dir.libs/$base.o.d and + # in $dir$base.o.d. We have to check for both files, because + # one of the two compilations can be disabled. We should prefer + # $dir$base.o.d over $dir.libs/$base.o.d because the latter is + # automatically cleaned when .libs/ is deleted, while ignoring + # the former would cause a distcleancheck panic. + tmpdepfile1=$dir$base.o.d # libtool 1.5 + tmpdepfile2=$dir.libs/$base.o.d # Likewise. + tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504 + "$@" -Wc,-MD + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + tmpdepfile3=$dir$base.d + "$@" -MD + fi + + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + # Same post-processing that is required for AIX mode. + aix_post_process_depfile + ;; + +msvc7) + if test "$libtool" = yes; then + showIncludes=-Wc,-showIncludes + else + showIncludes=-showIncludes + fi + "$@" $showIncludes > "$tmpdepfile" + stat=$? + grep -v '^Note: including file: ' "$tmpdepfile" + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The first sed program below extracts the file names and escapes + # backslashes for cygpath. The second sed program outputs the file + # name when reading, but also accumulates all include files in the + # hold buffer in order to output them again at the end. This only + # works with sed implementations that can handle large buffers. + sed < "$tmpdepfile" -n ' +/^Note: including file: *\(.*\)/ { + s//\1/ + s/\\/\\\\/g + p +}' | $cygpath_u | sort -u | sed -n ' +s/ /\\ /g +s/\(.*\)/'"$tab"'\1 \\/p +s/.\(.*\) \\/\1:/ +H +$ { + s/.*/'"$tab"'/ + G + p +}' >> "$depfile" + echo >> "$depfile" # make sure the fragment doesn't end with a backslash + rm -f "$tmpdepfile" + ;; + +msvc7msys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +#nosideeffect) + # This comment above is used by automake to tell side-effect + # dependency tracking mechanisms from slower ones. + +dashmstdout) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout, regardless of -o. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove '-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + test -z "$dashmflag" && dashmflag=-M + # Require at least two characters before searching for ':' + # in the target name. This is to cope with DOS-style filenames: + # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise. + "$@" $dashmflag | + sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile" + rm -f "$depfile" + cat < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this sed invocation + # correctly. Breaking it into two sed invocations is a workaround. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +dashXmstdout) + # This case only exists to satisfy depend.m4. It is never actually + # run, as this mode is specially recognized in the preamble. + exit 1 + ;; + +makedepend) + "$@" || exit $? + # Remove any Libtool call + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + # X makedepend + shift + cleared=no eat=no + for arg + do + case $cleared in + no) + set ""; shift + cleared=yes ;; + esac + if test $eat = yes; then + eat=no + continue + fi + case "$arg" in + -D*|-I*) + set fnord "$@" "$arg"; shift ;; + # Strip any option that makedepend may not understand. Remove + # the object too, otherwise makedepend will parse it as a source file. + -arch) + eat=yes ;; + -*|$object) + ;; + *) + set fnord "$@" "$arg"; shift ;; + esac + done + obj_suffix=`echo "$object" | sed 's/^.*\././'` + touch "$tmpdepfile" + ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" + rm -f "$depfile" + # makedepend may prepend the VPATH from the source file name to the object. + # No need to regex-escape $object, excess matching of '.' is harmless. + sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process the last invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed '1,2d' "$tmpdepfile" \ + | tr ' ' "$nl" \ + | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" "$tmpdepfile".bak + ;; + +cpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove '-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + "$@" -E \ + | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + | sed '$ s: \\$::' > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + cat < "$tmpdepfile" >> "$depfile" + sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvisualcpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + IFS=" " + for arg + do + case "$arg" in + -o) + shift + ;; + $object) + shift + ;; + "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") + set fnord "$@" + shift + shift + ;; + *) + set fnord "$@" "$arg" + shift + shift + ;; + esac + done + "$@" -E 2>/dev/null | + sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile" + echo "$tab" >> "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvcmsys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +none) + exec "$@" + ;; + +*) + echo "Unknown depmode $depmode" 1>&2 + exit 1 + ;; +esac + +exit 0 + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC" +# time-stamp-end: "; # UTC" +# End: diff --git a/shadowsocksr-libev/src/auto/install-sh b/shadowsocksr-libev/src/auto/install-sh new file mode 100644 index 000000000..377bb8687 --- /dev/null +++ b/shadowsocksr-libev/src/auto/install-sh @@ -0,0 +1,527 @@ +#!/bin/sh +# install - install a program, script, or datafile + +scriptversion=2011-11-20.07; # UTC + +# This originates from X11R5 (mit/util/scripts/install.sh), which was +# later released in X11R6 (xc/config/util/install.sh) with the +# following copyright and license. +# +# Copyright (C) 1994 X Consortium +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to +# deal in the Software without restriction, including without limitation the +# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +# sell copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- +# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# +# Except as contained in this notice, the name of the X Consortium shall not +# be used in advertising or otherwise to promote the sale, use or other deal- +# ings in this Software without prior written authorization from the X Consor- +# tium. +# +# +# FSF changes to this file are in the public domain. +# +# Calling this script install-sh is preferred over install.sh, to prevent +# 'make' implicit rules from creating a file called install from it +# when there is no Makefile. +# +# This script is compatible with the BSD install script, but was written +# from scratch. + +nl=' +' +IFS=" "" $nl" + +# set DOITPROG to echo to test this script + +# Don't use :- since 4.3BSD and earlier shells don't like it. +doit=${DOITPROG-} +if test -z "$doit"; then + doit_exec=exec +else + doit_exec=$doit +fi + +# Put in absolute file names if you don't have them in your path; +# or use environment vars. + +chgrpprog=${CHGRPPROG-chgrp} +chmodprog=${CHMODPROG-chmod} +chownprog=${CHOWNPROG-chown} +cmpprog=${CMPPROG-cmp} +cpprog=${CPPROG-cp} +mkdirprog=${MKDIRPROG-mkdir} +mvprog=${MVPROG-mv} +rmprog=${RMPROG-rm} +stripprog=${STRIPPROG-strip} + +posix_glob='?' +initialize_posix_glob=' + test "$posix_glob" != "?" || { + if (set -f) 2>/dev/null; then + posix_glob= + else + posix_glob=: + fi + } +' + +posix_mkdir= + +# Desired mode of installed file. +mode=0755 + +chgrpcmd= +chmodcmd=$chmodprog +chowncmd= +mvcmd=$mvprog +rmcmd="$rmprog -f" +stripcmd= + +src= +dst= +dir_arg= +dst_arg= + +copy_on_change=false +no_target_directory= + +usage="\ +Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE + or: $0 [OPTION]... SRCFILES... DIRECTORY + or: $0 [OPTION]... -t DIRECTORY SRCFILES... + or: $0 [OPTION]... -d DIRECTORIES... + +In the 1st form, copy SRCFILE to DSTFILE. +In the 2nd and 3rd, copy all SRCFILES to DIRECTORY. +In the 4th, create DIRECTORIES. + +Options: + --help display this help and exit. + --version display version info and exit. + + -c (ignored) + -C install only if different (preserve the last data modification time) + -d create directories instead of installing files. + -g GROUP $chgrpprog installed files to GROUP. + -m MODE $chmodprog installed files to MODE. + -o USER $chownprog installed files to USER. + -s $stripprog installed files. + -t DIRECTORY install into DIRECTORY. + -T report an error if DSTFILE is a directory. + +Environment variables override the default commands: + CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG + RMPROG STRIPPROG +" + +while test $# -ne 0; do + case $1 in + -c) ;; + + -C) copy_on_change=true;; + + -d) dir_arg=true;; + + -g) chgrpcmd="$chgrpprog $2" + shift;; + + --help) echo "$usage"; exit $?;; + + -m) mode=$2 + case $mode in + *' '* | *' '* | *' +'* | *'*'* | *'?'* | *'['*) + echo "$0: invalid mode: $mode" >&2 + exit 1;; + esac + shift;; + + -o) chowncmd="$chownprog $2" + shift;; + + -s) stripcmd=$stripprog;; + + -t) dst_arg=$2 + # Protect names problematic for 'test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + shift;; + + -T) no_target_directory=true;; + + --version) echo "$0 $scriptversion"; exit $?;; + + --) shift + break;; + + -*) echo "$0: invalid option: $1" >&2 + exit 1;; + + *) break;; + esac + shift +done + +if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then + # When -d is used, all remaining arguments are directories to create. + # When -t is used, the destination is already specified. + # Otherwise, the last argument is the destination. Remove it from $@. + for arg + do + if test -n "$dst_arg"; then + # $@ is not empty: it contains at least $arg. + set fnord "$@" "$dst_arg" + shift # fnord + fi + shift # arg + dst_arg=$arg + # Protect names problematic for 'test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + done +fi + +if test $# -eq 0; then + if test -z "$dir_arg"; then + echo "$0: no input file specified." >&2 + exit 1 + fi + # It's OK to call 'install-sh -d' without argument. + # This can happen when creating conditional directories. + exit 0 +fi + +if test -z "$dir_arg"; then + do_exit='(exit $ret); exit $ret' + trap "ret=129; $do_exit" 1 + trap "ret=130; $do_exit" 2 + trap "ret=141; $do_exit" 13 + trap "ret=143; $do_exit" 15 + + # Set umask so as not to create temps with too-generous modes. + # However, 'strip' requires both read and write access to temps. + case $mode in + # Optimize common cases. + *644) cp_umask=133;; + *755) cp_umask=22;; + + *[0-7]) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw='% 200' + fi + cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;; + *) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw=,u+rw + fi + cp_umask=$mode$u_plus_rw;; + esac +fi + +for src +do + # Protect names problematic for 'test' and other utilities. + case $src in + -* | [=\(\)!]) src=./$src;; + esac + + if test -n "$dir_arg"; then + dst=$src + dstdir=$dst + test -d "$dstdir" + dstdir_status=$? + else + + # Waiting for this to be detected by the "$cpprog $src $dsttmp" command + # might cause directories to be created, which would be especially bad + # if $src (and thus $dsttmp) contains '*'. + if test ! -f "$src" && test ! -d "$src"; then + echo "$0: $src does not exist." >&2 + exit 1 + fi + + if test -z "$dst_arg"; then + echo "$0: no destination specified." >&2 + exit 1 + fi + dst=$dst_arg + + # If destination is a directory, append the input filename; won't work + # if double slashes aren't ignored. + if test -d "$dst"; then + if test -n "$no_target_directory"; then + echo "$0: $dst_arg: Is a directory" >&2 + exit 1 + fi + dstdir=$dst + dst=$dstdir/`basename "$src"` + dstdir_status=0 + else + # Prefer dirname, but fall back on a substitute if dirname fails. + dstdir=` + (dirname "$dst") 2>/dev/null || + expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$dst" : 'X\(//\)[^/]' \| \ + X"$dst" : 'X\(//\)$' \| \ + X"$dst" : 'X\(/\)' \| . 2>/dev/null || + echo X"$dst" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q' + ` + + test -d "$dstdir" + dstdir_status=$? + fi + fi + + obsolete_mkdir_used=false + + if test $dstdir_status != 0; then + case $posix_mkdir in + '') + # Create intermediate dirs using mode 755 as modified by the umask. + # This is like FreeBSD 'install' as of 1997-10-28. + umask=`umask` + case $stripcmd.$umask in + # Optimize common cases. + *[2367][2367]) mkdir_umask=$umask;; + .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;; + + *[0-7]) + mkdir_umask=`expr $umask + 22 \ + - $umask % 100 % 40 + $umask % 20 \ + - $umask % 10 % 4 + $umask % 2 + `;; + *) mkdir_umask=$umask,go-w;; + esac + + # With -d, create the new directory with the user-specified mode. + # Otherwise, rely on $mkdir_umask. + if test -n "$dir_arg"; then + mkdir_mode=-m$mode + else + mkdir_mode= + fi + + posix_mkdir=false + case $umask in + *[123567][0-7][0-7]) + # POSIX mkdir -p sets u+wx bits regardless of umask, which + # is incompatible with FreeBSD 'install' when (umask & 300) != 0. + ;; + *) + tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ + trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0 + + if (umask $mkdir_umask && + exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1 + then + if test -z "$dir_arg" || { + # Check for POSIX incompatibilities with -m. + # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or + # other-writable bit of parent directory when it shouldn't. + # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. + ls_ld_tmpdir=`ls -ld "$tmpdir"` + case $ls_ld_tmpdir in + d????-?r-*) different_mode=700;; + d????-?--*) different_mode=755;; + *) false;; + esac && + $mkdirprog -m$different_mode -p -- "$tmpdir" && { + ls_ld_tmpdir_1=`ls -ld "$tmpdir"` + test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" + } + } + then posix_mkdir=: + fi + rmdir "$tmpdir/d" "$tmpdir" + else + # Remove any dirs left behind by ancient mkdir implementations. + rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null + fi + trap '' 0;; + esac;; + esac + + if + $posix_mkdir && ( + umask $mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir" + ) + then : + else + + # The umask is ridiculous, or mkdir does not conform to POSIX, + # or it failed possibly due to a race condition. Create the + # directory the slow way, step by step, checking for races as we go. + + case $dstdir in + /*) prefix='/';; + [-=\(\)!]*) prefix='./';; + *) prefix='';; + esac + + eval "$initialize_posix_glob" + + oIFS=$IFS + IFS=/ + $posix_glob set -f + set fnord $dstdir + shift + $posix_glob set +f + IFS=$oIFS + + prefixes= + + for d + do + test X"$d" = X && continue + + prefix=$prefix$d + if test -d "$prefix"; then + prefixes= + else + if $posix_mkdir; then + (umask=$mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break + # Don't fail if two instances are running concurrently. + test -d "$prefix" || exit 1 + else + case $prefix in + *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;; + *) qprefix=$prefix;; + esac + prefixes="$prefixes '$qprefix'" + fi + fi + prefix=$prefix/ + done + + if test -n "$prefixes"; then + # Don't fail if two instances are running concurrently. + (umask $mkdir_umask && + eval "\$doit_exec \$mkdirprog $prefixes") || + test -d "$dstdir" || exit 1 + obsolete_mkdir_used=true + fi + fi + fi + + if test -n "$dir_arg"; then + { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && + { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || + test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 + else + + # Make a couple of temp file names in the proper directory. + dsttmp=$dstdir/_inst.$$_ + rmtmp=$dstdir/_rm.$$_ + + # Trap to clean up those temp files at exit. + trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 + + # Copy the file name to the temp name. + (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && + + # and set any options; do chmod last to preserve setuid bits. + # + # If any of these fail, we abort the whole thing. If we want to + # ignore errors from any of these, just make sure not to ignore + # errors from the above "$doit $cpprog $src $dsttmp" command. + # + { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && + { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && + { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && + + # If -C, don't bother to copy if it wouldn't change the file. + if $copy_on_change && + old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && + new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && + + eval "$initialize_posix_glob" && + $posix_glob set -f && + set X $old && old=:$2:$4:$5:$6 && + set X $new && new=:$2:$4:$5:$6 && + $posix_glob set +f && + + test "$old" = "$new" && + $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 + then + rm -f "$dsttmp" + else + # Rename the file to the real destination. + $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || + + # The rename failed, perhaps because mv can't rename something else + # to itself, or perhaps because mv is so ancient that it does not + # support -f. + { + # Now remove or move aside any old file at destination location. + # We try this two ways since rm can't unlink itself on some + # systems and the destination file might be busy for other + # reasons. In this case, the final cleanup might fail but the new + # file should still install successfully. + { + test ! -f "$dst" || + $doit $rmcmd -f "$dst" 2>/dev/null || + { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && + { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } + } || + { echo "$0: cannot unlink or rename $dst" >&2 + (exit 1); exit 1 + } + } && + + # Now rename the file to the real destination. + $doit $mvcmd "$dsttmp" "$dst" + } + fi || exit 1 + + trap '' 0 + fi +done + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC" +# time-stamp-end: "; # UTC" +# End: diff --git a/shadowsocksr-libev/src/auto/ltmain.sh b/shadowsocksr-libev/src/auto/ltmain.sh new file mode 100644 index 000000000..a356acafa --- /dev/null +++ b/shadowsocksr-libev/src/auto/ltmain.sh @@ -0,0 +1,9661 @@ + +# libtool (GNU libtool) 2.4.2 +# Written by Gordon Matzigkeit , 1996 + +# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, +# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# GNU Libtool is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# As a special exception to the GNU General Public License, +# if you distribute this file as part of a program or library that +# is built using GNU Libtool, you may include this file under the +# same distribution terms that you use for the rest of that program. +# +# GNU Libtool is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Libtool; see the file COPYING. If not, a copy +# can be downloaded from http://www.gnu.org/licenses/gpl.html, +# or obtained by writing to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + +# Usage: $progname [OPTION]... [MODE-ARG]... +# +# Provide generalized library-building support services. +# +# --config show all configuration variables +# --debug enable verbose shell tracing +# -n, --dry-run display commands without modifying any files +# --features display basic configuration information and exit +# --mode=MODE use operation mode MODE +# --preserve-dup-deps don't remove duplicate dependency libraries +# --quiet, --silent don't print informational messages +# --no-quiet, --no-silent +# print informational messages (default) +# --no-warn don't display warning messages +# --tag=TAG use configuration variables from tag TAG +# -v, --verbose print more informational messages than default +# --no-verbose don't print the extra informational messages +# --version print version information +# -h, --help, --help-all print short, long, or detailed help message +# +# MODE must be one of the following: +# +# clean remove files from the build directory +# compile compile a source file into a libtool object +# execute automatically set library path, then run a program +# finish complete the installation of libtool libraries +# install install libraries or executables +# link create a library or an executable +# uninstall remove libraries from an installed directory +# +# MODE-ARGS vary depending on the MODE. When passed as first option, +# `--mode=MODE' may be abbreviated as `MODE' or a unique abbreviation of that. +# Try `$progname --help --mode=MODE' for a more detailed description of MODE. +# +# When reporting a bug, please describe a test case to reproduce it and +# include the following information: +# +# host-triplet: $host +# shell: $SHELL +# compiler: $LTCC +# compiler flags: $LTCFLAGS +# linker: $LD (gnu? $with_gnu_ld) +# $progname: (GNU libtool) 2.4.2 Debian-2.4.2-1.7ubuntu1 +# automake: $automake_version +# autoconf: $autoconf_version +# +# Report bugs to . +# GNU libtool home page: . +# General help using GNU software: . + +PROGRAM=libtool +PACKAGE=libtool +VERSION="2.4.2 Debian-2.4.2-1.7ubuntu1" +TIMESTAMP="" +package_revision=1.3337 + +# Be Bourne compatible +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac +fi +BIN_SH=xpg4; export BIN_SH # for Tru64 +DUALCASE=1; export DUALCASE # for MKS sh + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +$1 +_LTECHO_EOF' +} + +# NLS nuisances: We save the old values to restore during execute mode. +lt_user_locale= +lt_safe_locale= +for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES +do + eval "if test \"\${$lt_var+set}\" = set; then + save_$lt_var=\$$lt_var + $lt_var=C + export $lt_var + lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\" + lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\" + fi" +done +LC_ALL=C +LANGUAGE=C +export LANGUAGE LC_ALL + +$lt_unset CDPATH + + +# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh +# is ksh but when the shell is invoked as "sh" and the current value of +# the _XPG environment variable is not equal to 1 (one), the special +# positional parameter $0, within a function call, is the name of the +# function. +progpath="$0" + + + +: ${CP="cp -f"} +test "${ECHO+set}" = set || ECHO=${as_echo-'printf %s\n'} +: ${MAKE="make"} +: ${MKDIR="mkdir"} +: ${MV="mv -f"} +: ${RM="rm -f"} +: ${SHELL="${CONFIG_SHELL-/bin/sh}"} +: ${Xsed="$SED -e 1s/^X//"} + +# Global variables: +EXIT_SUCCESS=0 +EXIT_FAILURE=1 +EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing. +EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake. + +exit_status=$EXIT_SUCCESS + +# Make sure IFS has a sensible default +lt_nl=' +' +IFS=" $lt_nl" + +dirname="s,/[^/]*$,," +basename="s,^.*/,," + +# func_dirname file append nondir_replacement +# Compute the dirname of FILE. If nonempty, add APPEND to the result, +# otherwise set result to NONDIR_REPLACEMENT. +func_dirname () +{ + func_dirname_result=`$ECHO "${1}" | $SED "$dirname"` + if test "X$func_dirname_result" = "X${1}"; then + func_dirname_result="${3}" + else + func_dirname_result="$func_dirname_result${2}" + fi +} # func_dirname may be replaced by extended shell implementation + + +# func_basename file +func_basename () +{ + func_basename_result=`$ECHO "${1}" | $SED "$basename"` +} # func_basename may be replaced by extended shell implementation + + +# func_dirname_and_basename file append nondir_replacement +# perform func_basename and func_dirname in a single function +# call: +# dirname: Compute the dirname of FILE. If nonempty, +# add APPEND to the result, otherwise set result +# to NONDIR_REPLACEMENT. +# value returned in "$func_dirname_result" +# basename: Compute filename of FILE. +# value retuned in "$func_basename_result" +# Implementation must be kept synchronized with func_dirname +# and func_basename. For efficiency, we do not delegate to +# those functions but instead duplicate the functionality here. +func_dirname_and_basename () +{ + # Extract subdirectory from the argument. + func_dirname_result=`$ECHO "${1}" | $SED -e "$dirname"` + if test "X$func_dirname_result" = "X${1}"; then + func_dirname_result="${3}" + else + func_dirname_result="$func_dirname_result${2}" + fi + func_basename_result=`$ECHO "${1}" | $SED -e "$basename"` +} # func_dirname_and_basename may be replaced by extended shell implementation + + +# func_stripname prefix suffix name +# strip PREFIX and SUFFIX off of NAME. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +# func_strip_suffix prefix name +func_stripname () +{ + case ${2} in + .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;; + *) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;; + esac +} # func_stripname may be replaced by extended shell implementation + + +# These SED scripts presuppose an absolute path with a trailing slash. +pathcar='s,^/\([^/]*\).*$,\1,' +pathcdr='s,^/[^/]*,,' +removedotparts=':dotsl + s@/\./@/@g + t dotsl + s,/\.$,/,' +collapseslashes='s@/\{1,\}@/@g' +finalslash='s,/*$,/,' + +# func_normal_abspath PATH +# Remove doubled-up and trailing slashes, "." path components, +# and cancel out any ".." path components in PATH after making +# it an absolute path. +# value returned in "$func_normal_abspath_result" +func_normal_abspath () +{ + # Start from root dir and reassemble the path. + func_normal_abspath_result= + func_normal_abspath_tpath=$1 + func_normal_abspath_altnamespace= + case $func_normal_abspath_tpath in + "") + # Empty path, that just means $cwd. + func_stripname '' '/' "`pwd`" + func_normal_abspath_result=$func_stripname_result + return + ;; + # The next three entries are used to spot a run of precisely + # two leading slashes without using negated character classes; + # we take advantage of case's first-match behaviour. + ///*) + # Unusual form of absolute path, do nothing. + ;; + //*) + # Not necessarily an ordinary path; POSIX reserves leading '//' + # and for example Cygwin uses it to access remote file shares + # over CIFS/SMB, so we conserve a leading double slash if found. + func_normal_abspath_altnamespace=/ + ;; + /*) + # Absolute path, do nothing. + ;; + *) + # Relative path, prepend $cwd. + func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath + ;; + esac + # Cancel out all the simple stuff to save iterations. We also want + # the path to end with a slash for ease of parsing, so make sure + # there is one (and only one) here. + func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$removedotparts" -e "$collapseslashes" -e "$finalslash"` + while :; do + # Processed it all yet? + if test "$func_normal_abspath_tpath" = / ; then + # If we ascended to the root using ".." the result may be empty now. + if test -z "$func_normal_abspath_result" ; then + func_normal_abspath_result=/ + fi + break + fi + func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$pathcar"` + func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$pathcdr"` + # Figure out what to do with it + case $func_normal_abspath_tcomponent in + "") + # Trailing empty path component, ignore it. + ;; + ..) + # Parent dir; strip last assembled component from result. + func_dirname "$func_normal_abspath_result" + func_normal_abspath_result=$func_dirname_result + ;; + *) + # Actual path component, append it. + func_normal_abspath_result=$func_normal_abspath_result/$func_normal_abspath_tcomponent + ;; + esac + done + # Restore leading double-slash if one was found on entry. + func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result +} + +# func_relative_path SRCDIR DSTDIR +# generates a relative path from SRCDIR to DSTDIR, with a trailing +# slash if non-empty, suitable for immediately appending a filename +# without needing to append a separator. +# value returned in "$func_relative_path_result" +func_relative_path () +{ + func_relative_path_result= + func_normal_abspath "$1" + func_relative_path_tlibdir=$func_normal_abspath_result + func_normal_abspath "$2" + func_relative_path_tbindir=$func_normal_abspath_result + + # Ascend the tree starting from libdir + while :; do + # check if we have found a prefix of bindir + case $func_relative_path_tbindir in + $func_relative_path_tlibdir) + # found an exact match + func_relative_path_tcancelled= + break + ;; + $func_relative_path_tlibdir*) + # found a matching prefix + func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir" + func_relative_path_tcancelled=$func_stripname_result + if test -z "$func_relative_path_result"; then + func_relative_path_result=. + fi + break + ;; + *) + func_dirname $func_relative_path_tlibdir + func_relative_path_tlibdir=${func_dirname_result} + if test "x$func_relative_path_tlibdir" = x ; then + # Have to descend all the way to the root! + func_relative_path_result=../$func_relative_path_result + func_relative_path_tcancelled=$func_relative_path_tbindir + break + fi + func_relative_path_result=../$func_relative_path_result + ;; + esac + done + + # Now calculate path; take care to avoid doubling-up slashes. + func_stripname '' '/' "$func_relative_path_result" + func_relative_path_result=$func_stripname_result + func_stripname '/' '/' "$func_relative_path_tcancelled" + if test "x$func_stripname_result" != x ; then + func_relative_path_result=${func_relative_path_result}/${func_stripname_result} + fi + + # Normalisation. If bindir is libdir, return empty string, + # else relative path ending with a slash; either way, target + # file name can be directly appended. + if test ! -z "$func_relative_path_result"; then + func_stripname './' '' "$func_relative_path_result/" + func_relative_path_result=$func_stripname_result + fi +} + +# The name of this program: +func_dirname_and_basename "$progpath" +progname=$func_basename_result + +# Make sure we have an absolute path for reexecution: +case $progpath in + [\\/]*|[A-Za-z]:\\*) ;; + *[\\/]*) + progdir=$func_dirname_result + progdir=`cd "$progdir" && pwd` + progpath="$progdir/$progname" + ;; + *) + save_IFS="$IFS" + IFS=${PATH_SEPARATOR-:} + for progdir in $PATH; do + IFS="$save_IFS" + test -x "$progdir/$progname" && break + done + IFS="$save_IFS" + test -n "$progdir" || progdir=`pwd` + progpath="$progdir/$progname" + ;; +esac + +# Sed substitution that helps us do robust quoting. It backslashifies +# metacharacters that are still active within double-quoted strings. +Xsed="${SED}"' -e 1s/^X//' +sed_quote_subst='s/\([`"$\\]\)/\\\1/g' + +# Same as above, but do not quote variable references. +double_quote_subst='s/\(["`\\]\)/\\\1/g' + +# Sed substitution that turns a string into a regex matching for the +# string literally. +sed_make_literal_regex='s,[].[^$\\*\/],\\&,g' + +# Sed substitution that converts a w32 file name or path +# which contains forward slashes, into one that contains +# (escaped) backslashes. A very naive implementation. +lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g' + +# Re-`\' parameter expansions in output of double_quote_subst that were +# `\'-ed in input to the same. If an odd number of `\' preceded a '$' +# in input to double_quote_subst, that '$' was protected from expansion. +# Since each input `\' is now two `\'s, look for any number of runs of +# four `\'s followed by two `\'s and then a '$'. `\' that '$'. +bs='\\' +bs2='\\\\' +bs4='\\\\\\\\' +dollar='\$' +sed_double_backslash="\ + s/$bs4/&\\ +/g + s/^$bs2$dollar/$bs&/ + s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g + s/\n//g" + +# Standard options: +opt_dry_run=false +opt_help=false +opt_quiet=false +opt_verbose=false +opt_warning=: + +# func_echo arg... +# Echo program name prefixed message, along with the current mode +# name if it has been set yet. +func_echo () +{ + $ECHO "$progname: ${opt_mode+$opt_mode: }$*" +} + +# func_verbose arg... +# Echo program name prefixed message in verbose mode only. +func_verbose () +{ + $opt_verbose && func_echo ${1+"$@"} + + # A bug in bash halts the script if the last line of a function + # fails when set -e is in force, so we need another command to + # work around that: + : +} + +# func_echo_all arg... +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "$*" +} + +# func_error arg... +# Echo program name prefixed message to standard error. +func_error () +{ + $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2 +} + +# func_warning arg... +# Echo program name prefixed warning message to standard error. +func_warning () +{ + $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2 + + # bash bug again: + : +} + +# func_fatal_error arg... +# Echo program name prefixed message to standard error, and exit. +func_fatal_error () +{ + func_error ${1+"$@"} + exit $EXIT_FAILURE +} + +# func_fatal_help arg... +# Echo program name prefixed message to standard error, followed by +# a help hint, and exit. +func_fatal_help () +{ + func_error ${1+"$@"} + func_fatal_error "$help" +} +help="Try \`$progname --help' for more information." ## default + + +# func_grep expression filename +# Check whether EXPRESSION matches any line of FILENAME, without output. +func_grep () +{ + $GREP "$1" "$2" >/dev/null 2>&1 +} + + +# func_mkdir_p directory-path +# Make sure the entire path to DIRECTORY-PATH is available. +func_mkdir_p () +{ + my_directory_path="$1" + my_dir_list= + + if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then + + # Protect directory names starting with `-' + case $my_directory_path in + -*) my_directory_path="./$my_directory_path" ;; + esac + + # While some portion of DIR does not yet exist... + while test ! -d "$my_directory_path"; do + # ...make a list in topmost first order. Use a colon delimited + # list incase some portion of path contains whitespace. + my_dir_list="$my_directory_path:$my_dir_list" + + # If the last portion added has no slash in it, the list is done + case $my_directory_path in */*) ;; *) break ;; esac + + # ...otherwise throw away the child directory and loop + my_directory_path=`$ECHO "$my_directory_path" | $SED -e "$dirname"` + done + my_dir_list=`$ECHO "$my_dir_list" | $SED 's,:*$,,'` + + save_mkdir_p_IFS="$IFS"; IFS=':' + for my_dir in $my_dir_list; do + IFS="$save_mkdir_p_IFS" + # mkdir can fail with a `File exist' error if two processes + # try to create one of the directories concurrently. Don't + # stop in that case! + $MKDIR "$my_dir" 2>/dev/null || : + done + IFS="$save_mkdir_p_IFS" + + # Bail out if we (or some other process) failed to create a directory. + test -d "$my_directory_path" || \ + func_fatal_error "Failed to create \`$1'" + fi +} + + +# func_mktempdir [string] +# Make a temporary directory that won't clash with other running +# libtool processes, and avoids race conditions if possible. If +# given, STRING is the basename for that directory. +func_mktempdir () +{ + my_template="${TMPDIR-/tmp}/${1-$progname}" + + if test "$opt_dry_run" = ":"; then + # Return a directory name, but don't create it in dry-run mode + my_tmpdir="${my_template}-$$" + else + + # If mktemp works, use that first and foremost + my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null` + + if test ! -d "$my_tmpdir"; then + # Failing that, at least try and use $RANDOM to avoid a race + my_tmpdir="${my_template}-${RANDOM-0}$$" + + save_mktempdir_umask=`umask` + umask 0077 + $MKDIR "$my_tmpdir" + umask $save_mktempdir_umask + fi + + # If we're not in dry-run mode, bomb out on failure + test -d "$my_tmpdir" || \ + func_fatal_error "cannot create temporary directory \`$my_tmpdir'" + fi + + $ECHO "$my_tmpdir" +} + + +# func_quote_for_eval arg +# Aesthetically quote ARG to be evaled later. +# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT +# is double-quoted, suitable for a subsequent eval, whereas +# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters +# which are still active within double quotes backslashified. +func_quote_for_eval () +{ + case $1 in + *[\\\`\"\$]*) + func_quote_for_eval_unquoted_result=`$ECHO "$1" | $SED "$sed_quote_subst"` ;; + *) + func_quote_for_eval_unquoted_result="$1" ;; + esac + + case $func_quote_for_eval_unquoted_result in + # Double-quote args containing shell metacharacters to delay + # word splitting, command substitution and and variable + # expansion for a subsequent eval. + # Many Bourne shells cannot handle close brackets correctly + # in scan sets, so we specify it separately. + *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") + func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\"" + ;; + *) + func_quote_for_eval_result="$func_quote_for_eval_unquoted_result" + esac +} + + +# func_quote_for_expand arg +# Aesthetically quote ARG to be evaled later; same as above, +# but do not quote variable references. +func_quote_for_expand () +{ + case $1 in + *[\\\`\"]*) + my_arg=`$ECHO "$1" | $SED \ + -e "$double_quote_subst" -e "$sed_double_backslash"` ;; + *) + my_arg="$1" ;; + esac + + case $my_arg in + # Double-quote args containing shell metacharacters to delay + # word splitting and command substitution for a subsequent eval. + # Many Bourne shells cannot handle close brackets correctly + # in scan sets, so we specify it separately. + *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") + my_arg="\"$my_arg\"" + ;; + esac + + func_quote_for_expand_result="$my_arg" +} + + +# func_show_eval cmd [fail_exp] +# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is +# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP +# is given, then evaluate it. +func_show_eval () +{ + my_cmd="$1" + my_fail_exp="${2-:}" + + ${opt_silent-false} || { + func_quote_for_expand "$my_cmd" + eval "func_echo $func_quote_for_expand_result" + } + + if ${opt_dry_run-false}; then :; else + eval "$my_cmd" + my_status=$? + if test "$my_status" -eq 0; then :; else + eval "(exit $my_status); $my_fail_exp" + fi + fi +} + + +# func_show_eval_locale cmd [fail_exp] +# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is +# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP +# is given, then evaluate it. Use the saved locale for evaluation. +func_show_eval_locale () +{ + my_cmd="$1" + my_fail_exp="${2-:}" + + ${opt_silent-false} || { + func_quote_for_expand "$my_cmd" + eval "func_echo $func_quote_for_expand_result" + } + + if ${opt_dry_run-false}; then :; else + eval "$lt_user_locale + $my_cmd" + my_status=$? + eval "$lt_safe_locale" + if test "$my_status" -eq 0; then :; else + eval "(exit $my_status); $my_fail_exp" + fi + fi +} + +# func_tr_sh +# Turn $1 into a string suitable for a shell variable name. +# Result is stored in $func_tr_sh_result. All characters +# not in the set a-zA-Z0-9_ are replaced with '_'. Further, +# if $1 begins with a digit, a '_' is prepended as well. +func_tr_sh () +{ + case $1 in + [0-9]* | *[!a-zA-Z0-9_]*) + func_tr_sh_result=`$ECHO "$1" | $SED 's/^\([0-9]\)/_\1/; s/[^a-zA-Z0-9_]/_/g'` + ;; + * ) + func_tr_sh_result=$1 + ;; + esac +} + + +# func_version +# Echo version message to standard output and exit. +func_version () +{ + $opt_debug + + $SED -n '/(C)/!b go + :more + /\./!{ + N + s/\n# / / + b more + } + :go + /^# '$PROGRAM' (GNU /,/# warranty; / { + s/^# // + s/^# *$// + s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/ + p + }' < "$progpath" + exit $? +} + +# func_usage +# Echo short help message to standard output and exit. +func_usage () +{ + $opt_debug + + $SED -n '/^# Usage:/,/^# *.*--help/ { + s/^# // + s/^# *$// + s/\$progname/'$progname'/ + p + }' < "$progpath" + echo + $ECHO "run \`$progname --help | more' for full usage" + exit $? +} + +# func_help [NOEXIT] +# Echo long help message to standard output and exit, +# unless 'noexit' is passed as argument. +func_help () +{ + $opt_debug + + $SED -n '/^# Usage:/,/# Report bugs to/ { + :print + s/^# // + s/^# *$// + s*\$progname*'$progname'* + s*\$host*'"$host"'* + s*\$SHELL*'"$SHELL"'* + s*\$LTCC*'"$LTCC"'* + s*\$LTCFLAGS*'"$LTCFLAGS"'* + s*\$LD*'"$LD"'* + s/\$with_gnu_ld/'"$with_gnu_ld"'/ + s/\$automake_version/'"`(${AUTOMAKE-automake} --version) 2>/dev/null |$SED 1q`"'/ + s/\$autoconf_version/'"`(${AUTOCONF-autoconf} --version) 2>/dev/null |$SED 1q`"'/ + p + d + } + /^# .* home page:/b print + /^# General help using/b print + ' < "$progpath" + ret=$? + if test -z "$1"; then + exit $ret + fi +} + +# func_missing_arg argname +# Echo program name prefixed message to standard error and set global +# exit_cmd. +func_missing_arg () +{ + $opt_debug + + func_error "missing argument for $1." + exit_cmd=exit +} + + +# func_split_short_opt shortopt +# Set func_split_short_opt_name and func_split_short_opt_arg shell +# variables after splitting SHORTOPT after the 2nd character. +func_split_short_opt () +{ + my_sed_short_opt='1s/^\(..\).*$/\1/;q' + my_sed_short_rest='1s/^..\(.*\)$/\1/;q' + + func_split_short_opt_name=`$ECHO "$1" | $SED "$my_sed_short_opt"` + func_split_short_opt_arg=`$ECHO "$1" | $SED "$my_sed_short_rest"` +} # func_split_short_opt may be replaced by extended shell implementation + + +# func_split_long_opt longopt +# Set func_split_long_opt_name and func_split_long_opt_arg shell +# variables after splitting LONGOPT at the `=' sign. +func_split_long_opt () +{ + my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q' + my_sed_long_arg='1s/^--[^=]*=//' + + func_split_long_opt_name=`$ECHO "$1" | $SED "$my_sed_long_opt"` + func_split_long_opt_arg=`$ECHO "$1" | $SED "$my_sed_long_arg"` +} # func_split_long_opt may be replaced by extended shell implementation + +exit_cmd=: + + + + + +magic="%%%MAGIC variable%%%" +magic_exe="%%%MAGIC EXE variable%%%" + +# Global variables. +nonopt= +preserve_args= +lo2o="s/\\.lo\$/.${objext}/" +o2lo="s/\\.${objext}\$/.lo/" +extracted_archives= +extracted_serial=0 + +# If this variable is set in any of the actions, the command in it +# will be execed at the end. This prevents here-documents from being +# left over by shells. +exec_cmd= + +# func_append var value +# Append VALUE to the end of shell variable VAR. +func_append () +{ + eval "${1}=\$${1}\${2}" +} # func_append may be replaced by extended shell implementation + +# func_append_quoted var value +# Quote VALUE and append to the end of shell variable VAR, separated +# by a space. +func_append_quoted () +{ + func_quote_for_eval "${2}" + eval "${1}=\$${1}\\ \$func_quote_for_eval_result" +} # func_append_quoted may be replaced by extended shell implementation + + +# func_arith arithmetic-term... +func_arith () +{ + func_arith_result=`expr "${@}"` +} # func_arith may be replaced by extended shell implementation + + +# func_len string +# STRING may not start with a hyphen. +func_len () +{ + func_len_result=`expr "${1}" : ".*" 2>/dev/null || echo $max_cmd_len` +} # func_len may be replaced by extended shell implementation + + +# func_lo2o object +func_lo2o () +{ + func_lo2o_result=`$ECHO "${1}" | $SED "$lo2o"` +} # func_lo2o may be replaced by extended shell implementation + + +# func_xform libobj-or-source +func_xform () +{ + func_xform_result=`$ECHO "${1}" | $SED 's/\.[^.]*$/.lo/'` +} # func_xform may be replaced by extended shell implementation + + +# func_fatal_configuration arg... +# Echo program name prefixed message to standard error, followed by +# a configuration failure hint, and exit. +func_fatal_configuration () +{ + func_error ${1+"$@"} + func_error "See the $PACKAGE documentation for more information." + func_fatal_error "Fatal configuration error." +} + + +# func_config +# Display the configuration for all the tags in this script. +func_config () +{ + re_begincf='^# ### BEGIN LIBTOOL' + re_endcf='^# ### END LIBTOOL' + + # Default configuration. + $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath" + + # Now print the configurations for the tags. + for tagname in $taglist; do + $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath" + done + + exit $? +} + +# func_features +# Display the features supported by this script. +func_features () +{ + echo "host: $host" + if test "$build_libtool_libs" = yes; then + echo "enable shared libraries" + else + echo "disable shared libraries" + fi + if test "$build_old_libs" = yes; then + echo "enable static libraries" + else + echo "disable static libraries" + fi + + exit $? +} + +# func_enable_tag tagname +# Verify that TAGNAME is valid, and either flag an error and exit, or +# enable the TAGNAME tag. We also add TAGNAME to the global $taglist +# variable here. +func_enable_tag () +{ + # Global variable: + tagname="$1" + + re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$" + re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$" + sed_extractcf="/$re_begincf/,/$re_endcf/p" + + # Validate tagname. + case $tagname in + *[!-_A-Za-z0-9,/]*) + func_fatal_error "invalid tag name: $tagname" + ;; + esac + + # Don't test for the "default" C tag, as we know it's + # there but not specially marked. + case $tagname in + CC) ;; + *) + if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then + taglist="$taglist $tagname" + + # Evaluate the configuration. Be careful to quote the path + # and the sed script, to avoid splitting on whitespace, but + # also don't use non-portable quotes within backquotes within + # quotes we have to do it in 2 steps: + extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` + eval "$extractedcf" + else + func_error "ignoring unknown tag $tagname" + fi + ;; + esac +} + +# func_check_version_match +# Ensure that we are using m4 macros, and libtool script from the same +# release of libtool. +func_check_version_match () +{ + if test "$package_revision" != "$macro_revision"; then + if test "$VERSION" != "$macro_version"; then + if test -z "$macro_version"; then + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, but the +$progname: definition of this LT_INIT comes from an older release. +$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION +$progname: and run autoconf again. +_LT_EOF + else + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, but the +$progname: definition of this LT_INIT comes from $PACKAGE $macro_version. +$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION +$progname: and run autoconf again. +_LT_EOF + fi + else + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, +$progname: but the definition of this LT_INIT comes from revision $macro_revision. +$progname: You should recreate aclocal.m4 with macros from revision $package_revision +$progname: of $PACKAGE $VERSION and run autoconf again. +_LT_EOF + fi + + exit $EXIT_MISMATCH + fi +} + + +# Shorthand for --mode=foo, only valid as the first argument +case $1 in +clean|clea|cle|cl) + shift; set dummy --mode clean ${1+"$@"}; shift + ;; +compile|compil|compi|comp|com|co|c) + shift; set dummy --mode compile ${1+"$@"}; shift + ;; +execute|execut|execu|exec|exe|ex|e) + shift; set dummy --mode execute ${1+"$@"}; shift + ;; +finish|finis|fini|fin|fi|f) + shift; set dummy --mode finish ${1+"$@"}; shift + ;; +install|instal|insta|inst|ins|in|i) + shift; set dummy --mode install ${1+"$@"}; shift + ;; +link|lin|li|l) + shift; set dummy --mode link ${1+"$@"}; shift + ;; +uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) + shift; set dummy --mode uninstall ${1+"$@"}; shift + ;; +esac + + + +# Option defaults: +opt_debug=: +opt_dry_run=false +opt_config=false +opt_preserve_dup_deps=false +opt_features=false +opt_finish=false +opt_help=false +opt_help_all=false +opt_silent=: +opt_warning=: +opt_verbose=: +opt_silent=false +opt_verbose=false + + +# Parse options once, thoroughly. This comes as soon as possible in the +# script to make things like `--version' happen as quickly as we can. +{ + # this just eases exit handling + while test $# -gt 0; do + opt="$1" + shift + case $opt in + --debug|-x) opt_debug='set -x' + func_echo "enabling shell trace mode" + $opt_debug + ;; + --dry-run|--dryrun|-n) + opt_dry_run=: + ;; + --config) + opt_config=: +func_config + ;; + --dlopen|-dlopen) + optarg="$1" + opt_dlopen="${opt_dlopen+$opt_dlopen +}$optarg" + shift + ;; + --preserve-dup-deps) + opt_preserve_dup_deps=: + ;; + --features) + opt_features=: +func_features + ;; + --finish) + opt_finish=: +set dummy --mode finish ${1+"$@"}; shift + ;; + --help) + opt_help=: + ;; + --help-all) + opt_help_all=: +opt_help=': help-all' + ;; + --mode) + test $# = 0 && func_missing_arg $opt && break + optarg="$1" + opt_mode="$optarg" +case $optarg in + # Valid mode arguments: + clean|compile|execute|finish|install|link|relink|uninstall) ;; + + # Catch anything else as an error + *) func_error "invalid argument for $opt" + exit_cmd=exit + break + ;; +esac + shift + ;; + --no-silent|--no-quiet) + opt_silent=false +func_append preserve_args " $opt" + ;; + --no-warning|--no-warn) + opt_warning=false +func_append preserve_args " $opt" + ;; + --no-verbose) + opt_verbose=false +func_append preserve_args " $opt" + ;; + --silent|--quiet) + opt_silent=: +func_append preserve_args " $opt" + opt_verbose=false + ;; + --verbose|-v) + opt_verbose=: +func_append preserve_args " $opt" +opt_silent=false + ;; + --tag) + test $# = 0 && func_missing_arg $opt && break + optarg="$1" + opt_tag="$optarg" +func_append preserve_args " $opt $optarg" +func_enable_tag "$optarg" + shift + ;; + + -\?|-h) func_usage ;; + --help) func_help ;; + --version) func_version ;; + + # Separate optargs to long options: + --*=*) + func_split_long_opt "$opt" + set dummy "$func_split_long_opt_name" "$func_split_long_opt_arg" ${1+"$@"} + shift + ;; + + # Separate non-argument short options: + -\?*|-h*|-n*|-v*) + func_split_short_opt "$opt" + set dummy "$func_split_short_opt_name" "-$func_split_short_opt_arg" ${1+"$@"} + shift + ;; + + --) break ;; + -*) func_fatal_help "unrecognized option \`$opt'" ;; + *) set dummy "$opt" ${1+"$@"}; shift; break ;; + esac + done + + # Validate options: + + # save first non-option argument + if test "$#" -gt 0; then + nonopt="$opt" + shift + fi + + # preserve --debug + test "$opt_debug" = : || func_append preserve_args " --debug" + + case $host in + *cygwin* | *mingw* | *pw32* | *cegcc*) + # don't eliminate duplications in $postdeps and $predeps + opt_duplicate_compiler_generated_deps=: + ;; + *) + opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps + ;; + esac + + $opt_help || { + # Sanity checks first: + func_check_version_match + + if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then + func_fatal_configuration "not configured to build any kind of library" + fi + + # Darwin sucks + eval std_shrext=\"$shrext_cmds\" + + # Only execute mode is allowed to have -dlopen flags. + if test -n "$opt_dlopen" && test "$opt_mode" != execute; then + func_error "unrecognized option \`-dlopen'" + $ECHO "$help" 1>&2 + exit $EXIT_FAILURE + fi + + # Change the help message to a mode-specific one. + generic_help="$help" + help="Try \`$progname --help --mode=$opt_mode' for more information." + } + + + # Bail if the options were screwed + $exit_cmd $EXIT_FAILURE +} + + + + +## ----------- ## +## Main. ## +## ----------- ## + +# func_lalib_p file +# True iff FILE is a libtool `.la' library or `.lo' object file. +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_lalib_p () +{ + test -f "$1" && + $SED -e 4q "$1" 2>/dev/null \ + | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 +} + +# func_lalib_unsafe_p file +# True iff FILE is a libtool `.la' library or `.lo' object file. +# This function implements the same check as func_lalib_p without +# resorting to external programs. To this end, it redirects stdin and +# closes it afterwards, without saving the original file descriptor. +# As a safety measure, use it only where a negative result would be +# fatal anyway. Works if `file' does not exist. +func_lalib_unsafe_p () +{ + lalib_p=no + if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then + for lalib_p_l in 1 2 3 4 + do + read lalib_p_line + case "$lalib_p_line" in + \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; + esac + done + exec 0<&5 5<&- + fi + test "$lalib_p" = yes +} + +# func_ltwrapper_script_p file +# True iff FILE is a libtool wrapper script +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_script_p () +{ + func_lalib_p "$1" +} + +# func_ltwrapper_executable_p file +# True iff FILE is a libtool wrapper executable +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_executable_p () +{ + func_ltwrapper_exec_suffix= + case $1 in + *.exe) ;; + *) func_ltwrapper_exec_suffix=.exe ;; + esac + $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 +} + +# func_ltwrapper_scriptname file +# Assumes file is an ltwrapper_executable +# uses $file to determine the appropriate filename for a +# temporary ltwrapper_script. +func_ltwrapper_scriptname () +{ + func_dirname_and_basename "$1" "" "." + func_stripname '' '.exe' "$func_basename_result" + func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper" +} + +# func_ltwrapper_p file +# True iff FILE is a libtool wrapper script or wrapper executable +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_p () +{ + func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" +} + + +# func_execute_cmds commands fail_cmd +# Execute tilde-delimited COMMANDS. +# If FAIL_CMD is given, eval that upon failure. +# FAIL_CMD may read-access the current command in variable CMD! +func_execute_cmds () +{ + $opt_debug + save_ifs=$IFS; IFS='~' + for cmd in $1; do + IFS=$save_ifs + eval cmd=\"$cmd\" + func_show_eval "$cmd" "${2-:}" + done + IFS=$save_ifs +} + + +# func_source file +# Source FILE, adding directory component if necessary. +# Note that it is not necessary on cygwin/mingw to append a dot to +# FILE even if both FILE and FILE.exe exist: automatic-append-.exe +# behavior happens only for exec(3), not for open(2)! Also, sourcing +# `FILE.' does not work on cygwin managed mounts. +func_source () +{ + $opt_debug + case $1 in + */* | *\\*) . "$1" ;; + *) . "./$1" ;; + esac +} + + +# func_resolve_sysroot PATH +# Replace a leading = in PATH with a sysroot. Store the result into +# func_resolve_sysroot_result +func_resolve_sysroot () +{ + func_resolve_sysroot_result=$1 + case $func_resolve_sysroot_result in + =*) + func_stripname '=' '' "$func_resolve_sysroot_result" + func_resolve_sysroot_result=$lt_sysroot$func_stripname_result + ;; + esac +} + +# func_replace_sysroot PATH +# If PATH begins with the sysroot, replace it with = and +# store the result into func_replace_sysroot_result. +func_replace_sysroot () +{ + case "$lt_sysroot:$1" in + ?*:"$lt_sysroot"*) + func_stripname "$lt_sysroot" '' "$1" + func_replace_sysroot_result="=$func_stripname_result" + ;; + *) + # Including no sysroot. + func_replace_sysroot_result=$1 + ;; + esac +} + +# func_infer_tag arg +# Infer tagged configuration to use if any are available and +# if one wasn't chosen via the "--tag" command line option. +# Only attempt this if the compiler in the base compile +# command doesn't match the default compiler. +# arg is usually of the form 'gcc ...' +func_infer_tag () +{ + $opt_debug + if test -n "$available_tags" && test -z "$tagname"; then + CC_quoted= + for arg in $CC; do + func_append_quoted CC_quoted "$arg" + done + CC_expanded=`func_echo_all $CC` + CC_quoted_expanded=`func_echo_all $CC_quoted` + case $@ in + # Blanks in the command may have been stripped by the calling shell, + # but not from the CC environment variable when configure was run. + " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ + " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; + # Blanks at the start of $base_compile will cause this to fail + # if we don't check for them as well. + *) + for z in $available_tags; do + if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then + # Evaluate the configuration. + eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" + CC_quoted= + for arg in $CC; do + # Double-quote args containing other shell metacharacters. + func_append_quoted CC_quoted "$arg" + done + CC_expanded=`func_echo_all $CC` + CC_quoted_expanded=`func_echo_all $CC_quoted` + case "$@ " in + " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ + " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) + # The compiler in the base compile command matches + # the one in the tagged configuration. + # Assume this is the tagged configuration we want. + tagname=$z + break + ;; + esac + fi + done + # If $tagname still isn't set, then no tagged configuration + # was found and let the user know that the "--tag" command + # line option must be used. + if test -z "$tagname"; then + func_echo "unable to infer tagged configuration" + func_fatal_error "specify a tag with \`--tag'" +# else +# func_verbose "using $tagname tagged configuration" + fi + ;; + esac + fi +} + + + +# func_write_libtool_object output_name pic_name nonpic_name +# Create a libtool object file (analogous to a ".la" file), +# but don't create it if we're doing a dry run. +func_write_libtool_object () +{ + write_libobj=${1} + if test "$build_libtool_libs" = yes; then + write_lobj=\'${2}\' + else + write_lobj=none + fi + + if test "$build_old_libs" = yes; then + write_oldobj=\'${3}\' + else + write_oldobj=none + fi + + $opt_dry_run || { + cat >${write_libobj}T </dev/null` + if test "$?" -eq 0 && test -n "${func_convert_core_file_wine_to_w32_tmp}"; then + func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | + $SED -e "$lt_sed_naive_backslashify"` + else + func_convert_core_file_wine_to_w32_result= + fi + fi +} +# end: func_convert_core_file_wine_to_w32 + + +# func_convert_core_path_wine_to_w32 ARG +# Helper function used by path conversion functions when $build is *nix, and +# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly +# configured wine environment available, with the winepath program in $build's +# $PATH. Assumes ARG has no leading or trailing path separator characters. +# +# ARG is path to be converted from $build format to win32. +# Result is available in $func_convert_core_path_wine_to_w32_result. +# Unconvertible file (directory) names in ARG are skipped; if no directory names +# are convertible, then the result may be empty. +func_convert_core_path_wine_to_w32 () +{ + $opt_debug + # unfortunately, winepath doesn't convert paths, only file names + func_convert_core_path_wine_to_w32_result="" + if test -n "$1"; then + oldIFS=$IFS + IFS=: + for func_convert_core_path_wine_to_w32_f in $1; do + IFS=$oldIFS + func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" + if test -n "$func_convert_core_file_wine_to_w32_result" ; then + if test -z "$func_convert_core_path_wine_to_w32_result"; then + func_convert_core_path_wine_to_w32_result="$func_convert_core_file_wine_to_w32_result" + else + func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" + fi + fi + done + IFS=$oldIFS + fi +} +# end: func_convert_core_path_wine_to_w32 + + +# func_cygpath ARGS... +# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when +# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) +# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or +# (2), returns the Cygwin file name or path in func_cygpath_result (input +# file name or path is assumed to be in w32 format, as previously converted +# from $build's *nix or MSYS format). In case (3), returns the w32 file name +# or path in func_cygpath_result (input file name or path is assumed to be in +# Cygwin format). Returns an empty string on error. +# +# ARGS are passed to cygpath, with the last one being the file name or path to +# be converted. +# +# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH +# environment variable; do not put it in $PATH. +func_cygpath () +{ + $opt_debug + if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then + func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` + if test "$?" -ne 0; then + # on failure, ensure result is empty + func_cygpath_result= + fi + else + func_cygpath_result= + func_error "LT_CYGPATH is empty or specifies non-existent file: \`$LT_CYGPATH'" + fi +} +#end: func_cygpath + + +# func_convert_core_msys_to_w32 ARG +# Convert file name or path ARG from MSYS format to w32 format. Return +# result in func_convert_core_msys_to_w32_result. +func_convert_core_msys_to_w32 () +{ + $opt_debug + # awkward: cmd appends spaces to result + func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | + $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"` +} +#end: func_convert_core_msys_to_w32 + + +# func_convert_file_check ARG1 ARG2 +# Verify that ARG1 (a file name in $build format) was converted to $host +# format in ARG2. Otherwise, emit an error message, but continue (resetting +# func_to_host_file_result to ARG1). +func_convert_file_check () +{ + $opt_debug + if test -z "$2" && test -n "$1" ; then + func_error "Could not determine host file name corresponding to" + func_error " \`$1'" + func_error "Continuing, but uninstalled executables may not work." + # Fallback: + func_to_host_file_result="$1" + fi +} +# end func_convert_file_check + + +# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH +# Verify that FROM_PATH (a path in $build format) was converted to $host +# format in TO_PATH. Otherwise, emit an error message, but continue, resetting +# func_to_host_file_result to a simplistic fallback value (see below). +func_convert_path_check () +{ + $opt_debug + if test -z "$4" && test -n "$3"; then + func_error "Could not determine the host path corresponding to" + func_error " \`$3'" + func_error "Continuing, but uninstalled executables may not work." + # Fallback. This is a deliberately simplistic "conversion" and + # should not be "improved". See libtool.info. + if test "x$1" != "x$2"; then + lt_replace_pathsep_chars="s|$1|$2|g" + func_to_host_path_result=`echo "$3" | + $SED -e "$lt_replace_pathsep_chars"` + else + func_to_host_path_result="$3" + fi + fi +} +# end func_convert_path_check + + +# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG +# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT +# and appending REPL if ORIG matches BACKPAT. +func_convert_path_front_back_pathsep () +{ + $opt_debug + case $4 in + $1 ) func_to_host_path_result="$3$func_to_host_path_result" + ;; + esac + case $4 in + $2 ) func_append func_to_host_path_result "$3" + ;; + esac +} +# end func_convert_path_front_back_pathsep + + +################################################## +# $build to $host FILE NAME CONVERSION FUNCTIONS # +################################################## +# invoked via `$to_host_file_cmd ARG' +# +# In each case, ARG is the path to be converted from $build to $host format. +# Result will be available in $func_to_host_file_result. + + +# func_to_host_file ARG +# Converts the file name ARG from $build format to $host format. Return result +# in func_to_host_file_result. +func_to_host_file () +{ + $opt_debug + $to_host_file_cmd "$1" +} +# end func_to_host_file + + +# func_to_tool_file ARG LAZY +# converts the file name ARG from $build format to toolchain format. Return +# result in func_to_tool_file_result. If the conversion in use is listed +# in (the comma separated) LAZY, no conversion takes place. +func_to_tool_file () +{ + $opt_debug + case ,$2, in + *,"$to_tool_file_cmd",*) + func_to_tool_file_result=$1 + ;; + *) + $to_tool_file_cmd "$1" + func_to_tool_file_result=$func_to_host_file_result + ;; + esac +} +# end func_to_tool_file + + +# func_convert_file_noop ARG +# Copy ARG to func_to_host_file_result. +func_convert_file_noop () +{ + func_to_host_file_result="$1" +} +# end func_convert_file_noop + + +# func_convert_file_msys_to_w32 ARG +# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic +# conversion to w32 is not available inside the cwrapper. Returns result in +# func_to_host_file_result. +func_convert_file_msys_to_w32 () +{ + $opt_debug + func_to_host_file_result="$1" + if test -n "$1"; then + func_convert_core_msys_to_w32 "$1" + func_to_host_file_result="$func_convert_core_msys_to_w32_result" + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_msys_to_w32 + + +# func_convert_file_cygwin_to_w32 ARG +# Convert file name ARG from Cygwin to w32 format. Returns result in +# func_to_host_file_result. +func_convert_file_cygwin_to_w32 () +{ + $opt_debug + func_to_host_file_result="$1" + if test -n "$1"; then + # because $build is cygwin, we call "the" cygpath in $PATH; no need to use + # LT_CYGPATH in this case. + func_to_host_file_result=`cygpath -m "$1"` + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_cygwin_to_w32 + + +# func_convert_file_nix_to_w32 ARG +# Convert file name ARG from *nix to w32 format. Requires a wine environment +# and a working winepath. Returns result in func_to_host_file_result. +func_convert_file_nix_to_w32 () +{ + $opt_debug + func_to_host_file_result="$1" + if test -n "$1"; then + func_convert_core_file_wine_to_w32 "$1" + func_to_host_file_result="$func_convert_core_file_wine_to_w32_result" + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_nix_to_w32 + + +# func_convert_file_msys_to_cygwin ARG +# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. +# Returns result in func_to_host_file_result. +func_convert_file_msys_to_cygwin () +{ + $opt_debug + func_to_host_file_result="$1" + if test -n "$1"; then + func_convert_core_msys_to_w32 "$1" + func_cygpath -u "$func_convert_core_msys_to_w32_result" + func_to_host_file_result="$func_cygpath_result" + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_msys_to_cygwin + + +# func_convert_file_nix_to_cygwin ARG +# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed +# in a wine environment, working winepath, and LT_CYGPATH set. Returns result +# in func_to_host_file_result. +func_convert_file_nix_to_cygwin () +{ + $opt_debug + func_to_host_file_result="$1" + if test -n "$1"; then + # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. + func_convert_core_file_wine_to_w32 "$1" + func_cygpath -u "$func_convert_core_file_wine_to_w32_result" + func_to_host_file_result="$func_cygpath_result" + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_nix_to_cygwin + + +############################################# +# $build to $host PATH CONVERSION FUNCTIONS # +############################################# +# invoked via `$to_host_path_cmd ARG' +# +# In each case, ARG is the path to be converted from $build to $host format. +# The result will be available in $func_to_host_path_result. +# +# Path separators are also converted from $build format to $host format. If +# ARG begins or ends with a path separator character, it is preserved (but +# converted to $host format) on output. +# +# All path conversion functions are named using the following convention: +# file name conversion function : func_convert_file_X_to_Y () +# path conversion function : func_convert_path_X_to_Y () +# where, for any given $build/$host combination the 'X_to_Y' value is the +# same. If conversion functions are added for new $build/$host combinations, +# the two new functions must follow this pattern, or func_init_to_host_path_cmd +# will break. + + +# func_init_to_host_path_cmd +# Ensures that function "pointer" variable $to_host_path_cmd is set to the +# appropriate value, based on the value of $to_host_file_cmd. +to_host_path_cmd= +func_init_to_host_path_cmd () +{ + $opt_debug + if test -z "$to_host_path_cmd"; then + func_stripname 'func_convert_file_' '' "$to_host_file_cmd" + to_host_path_cmd="func_convert_path_${func_stripname_result}" + fi +} + + +# func_to_host_path ARG +# Converts the path ARG from $build format to $host format. Return result +# in func_to_host_path_result. +func_to_host_path () +{ + $opt_debug + func_init_to_host_path_cmd + $to_host_path_cmd "$1" +} +# end func_to_host_path + + +# func_convert_path_noop ARG +# Copy ARG to func_to_host_path_result. +func_convert_path_noop () +{ + func_to_host_path_result="$1" +} +# end func_convert_path_noop + + +# func_convert_path_msys_to_w32 ARG +# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic +# conversion to w32 is not available inside the cwrapper. Returns result in +# func_to_host_path_result. +func_convert_path_msys_to_w32 () +{ + $opt_debug + func_to_host_path_result="$1" + if test -n "$1"; then + # Remove leading and trailing path separator characters from ARG. MSYS + # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; + # and winepath ignores them completely. + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" + func_to_host_path_result="$func_convert_core_msys_to_w32_result" + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_msys_to_w32 + + +# func_convert_path_cygwin_to_w32 ARG +# Convert path ARG from Cygwin to w32 format. Returns result in +# func_to_host_file_result. +func_convert_path_cygwin_to_w32 () +{ + $opt_debug + func_to_host_path_result="$1" + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_cygwin_to_w32 + + +# func_convert_path_nix_to_w32 ARG +# Convert path ARG from *nix to w32 format. Requires a wine environment and +# a working winepath. Returns result in func_to_host_file_result. +func_convert_path_nix_to_w32 () +{ + $opt_debug + func_to_host_path_result="$1" + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" + func_to_host_path_result="$func_convert_core_path_wine_to_w32_result" + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_nix_to_w32 + + +# func_convert_path_msys_to_cygwin ARG +# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. +# Returns result in func_to_host_file_result. +func_convert_path_msys_to_cygwin () +{ + $opt_debug + func_to_host_path_result="$1" + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" + func_cygpath -u -p "$func_convert_core_msys_to_w32_result" + func_to_host_path_result="$func_cygpath_result" + func_convert_path_check : : \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" : "$1" + fi +} +# end func_convert_path_msys_to_cygwin + + +# func_convert_path_nix_to_cygwin ARG +# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a +# a wine environment, working winepath, and LT_CYGPATH set. Returns result in +# func_to_host_file_result. +func_convert_path_nix_to_cygwin () +{ + $opt_debug + func_to_host_path_result="$1" + if test -n "$1"; then + # Remove leading and trailing path separator characters from + # ARG. msys behavior is inconsistent here, cygpath turns them + # into '.;' and ';.', and winepath ignores them completely. + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" + func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" + func_to_host_path_result="$func_cygpath_result" + func_convert_path_check : : \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" : "$1" + fi +} +# end func_convert_path_nix_to_cygwin + + +# func_mode_compile arg... +func_mode_compile () +{ + $opt_debug + # Get the compilation command and the source file. + base_compile= + srcfile="$nonopt" # always keep a non-empty value in "srcfile" + suppress_opt=yes + suppress_output= + arg_mode=normal + libobj= + later= + pie_flag= + + for arg + do + case $arg_mode in + arg ) + # do not "continue". Instead, add this to base_compile + lastarg="$arg" + arg_mode=normal + ;; + + target ) + libobj="$arg" + arg_mode=normal + continue + ;; + + normal ) + # Accept any command-line options. + case $arg in + -o) + test -n "$libobj" && \ + func_fatal_error "you cannot specify \`-o' more than once" + arg_mode=target + continue + ;; + + -pie | -fpie | -fPIE) + func_append pie_flag " $arg" + continue + ;; + + -shared | -static | -prefer-pic | -prefer-non-pic) + func_append later " $arg" + continue + ;; + + -no-suppress) + suppress_opt=no + continue + ;; + + -Xcompiler) + arg_mode=arg # the next one goes into the "base_compile" arg list + continue # The current "srcfile" will either be retained or + ;; # replaced later. I would guess that would be a bug. + + -Wc,*) + func_stripname '-Wc,' '' "$arg" + args=$func_stripname_result + lastarg= + save_ifs="$IFS"; IFS=',' + for arg in $args; do + IFS="$save_ifs" + func_append_quoted lastarg "$arg" + done + IFS="$save_ifs" + func_stripname ' ' '' "$lastarg" + lastarg=$func_stripname_result + + # Add the arguments to base_compile. + func_append base_compile " $lastarg" + continue + ;; + + *) + # Accept the current argument as the source file. + # The previous "srcfile" becomes the current argument. + # + lastarg="$srcfile" + srcfile="$arg" + ;; + esac # case $arg + ;; + esac # case $arg_mode + + # Aesthetically quote the previous argument. + func_append_quoted base_compile "$lastarg" + done # for arg + + case $arg_mode in + arg) + func_fatal_error "you must specify an argument for -Xcompile" + ;; + target) + func_fatal_error "you must specify a target with \`-o'" + ;; + *) + # Get the name of the library object. + test -z "$libobj" && { + func_basename "$srcfile" + libobj="$func_basename_result" + } + ;; + esac + + # Recognize several different file suffixes. + # If the user specifies -o file.o, it is replaced with file.lo + case $libobj in + *.[cCFSifmso] | \ + *.ada | *.adb | *.ads | *.asm | \ + *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ + *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) + func_xform "$libobj" + libobj=$func_xform_result + ;; + esac + + case $libobj in + *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; + *) + func_fatal_error "cannot determine name of library object from \`$libobj'" + ;; + esac + + func_infer_tag $base_compile + + for arg in $later; do + case $arg in + -shared) + test "$build_libtool_libs" != yes && \ + func_fatal_configuration "can not build a shared library" + build_old_libs=no + continue + ;; + + -static) + build_libtool_libs=no + build_old_libs=yes + continue + ;; + + -prefer-pic) + pic_mode=yes + continue + ;; + + -prefer-non-pic) + pic_mode=no + continue + ;; + esac + done + + func_quote_for_eval "$libobj" + test "X$libobj" != "X$func_quote_for_eval_result" \ + && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ + && func_warning "libobj name \`$libobj' may not contain shell special characters." + func_dirname_and_basename "$obj" "/" "" + objname="$func_basename_result" + xdir="$func_dirname_result" + lobj=${xdir}$objdir/$objname + + test -z "$base_compile" && \ + func_fatal_help "you must specify a compilation command" + + # Delete any leftover library objects. + if test "$build_old_libs" = yes; then + removelist="$obj $lobj $libobj ${libobj}T" + else + removelist="$lobj $libobj ${libobj}T" + fi + + # On Cygwin there's no "real" PIC flag so we must build both object types + case $host_os in + cygwin* | mingw* | pw32* | os2* | cegcc*) + pic_mode=default + ;; + esac + if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then + # non-PIC code in shared libraries is not supported + pic_mode=default + fi + + # Calculate the filename of the output object if compiler does + # not support -o with -c + if test "$compiler_c_o" = no; then + output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.${objext} + lockfile="$output_obj.lock" + else + output_obj= + need_locks=no + lockfile= + fi + + # Lock this critical section if it is needed + # We use this script file to make the link, it avoids creating a new file + if test "$need_locks" = yes; then + until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do + func_echo "Waiting for $lockfile to be removed" + sleep 2 + done + elif test "$need_locks" = warn; then + if test -f "$lockfile"; then + $ECHO "\ +*** ERROR, $lockfile exists and contains: +`cat $lockfile 2>/dev/null` + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support \`-c' and \`-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + func_append removelist " $output_obj" + $ECHO "$srcfile" > "$lockfile" + fi + + $opt_dry_run || $RM $removelist + func_append removelist " $lockfile" + trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15 + + func_to_tool_file "$srcfile" func_convert_file_msys_to_w32 + srcfile=$func_to_tool_file_result + func_quote_for_eval "$srcfile" + qsrcfile=$func_quote_for_eval_result + + # Only build a PIC object if we are building libtool libraries. + if test "$build_libtool_libs" = yes; then + # Without this assignment, base_compile gets emptied. + fbsd_hideous_sh_bug=$base_compile + + if test "$pic_mode" != no; then + command="$base_compile $qsrcfile $pic_flag" + else + # Don't build PIC code + command="$base_compile $qsrcfile" + fi + + func_mkdir_p "$xdir$objdir" + + if test -z "$output_obj"; then + # Place PIC objects in $objdir + func_append command " -o $lobj" + fi + + func_show_eval_locale "$command" \ + 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE' + + if test "$need_locks" = warn && + test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then + $ECHO "\ +*** ERROR, $lockfile contains: +`cat $lockfile 2>/dev/null` + +but it should contain: +$srcfile + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support \`-c' and \`-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + + # Just move the object if needed, then go on to compile the next one + if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then + func_show_eval '$MV "$output_obj" "$lobj"' \ + 'error=$?; $opt_dry_run || $RM $removelist; exit $error' + fi + + # Allow error messages only from the first compilation. + if test "$suppress_opt" = yes; then + suppress_output=' >/dev/null 2>&1' + fi + fi + + # Only build a position-dependent object if we build old libraries. + if test "$build_old_libs" = yes; then + if test "$pic_mode" != yes; then + # Don't build PIC code + command="$base_compile $qsrcfile$pie_flag" + else + command="$base_compile $qsrcfile $pic_flag" + fi + if test "$compiler_c_o" = yes; then + func_append command " -o $obj" + fi + + # Suppress compiler output if we already did a PIC compilation. + func_append command "$suppress_output" + func_show_eval_locale "$command" \ + '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' + + if test "$need_locks" = warn && + test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then + $ECHO "\ +*** ERROR, $lockfile contains: +`cat $lockfile 2>/dev/null` + +but it should contain: +$srcfile + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support \`-c' and \`-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + + # Just move the object if needed + if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then + func_show_eval '$MV "$output_obj" "$obj"' \ + 'error=$?; $opt_dry_run || $RM $removelist; exit $error' + fi + fi + + $opt_dry_run || { + func_write_libtool_object "$libobj" "$objdir/$objname" "$objname" + + # Unlock the critical section if it was locked + if test "$need_locks" != no; then + removelist=$lockfile + $RM "$lockfile" + fi + } + + exit $EXIT_SUCCESS +} + +$opt_help || { + test "$opt_mode" = compile && func_mode_compile ${1+"$@"} +} + +func_mode_help () +{ + # We need to display help for each of the modes. + case $opt_mode in + "") + # Generic help is extracted from the usage comments + # at the start of this file. + func_help + ;; + + clean) + $ECHO \ +"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE... + +Remove files from the build directory. + +RM is the name of the program to use to delete files associated with each FILE +(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed +to RM. + +If FILE is a libtool library, object or program, all the files associated +with it are deleted. Otherwise, only FILE itself is deleted using RM." + ;; + + compile) + $ECHO \ +"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE + +Compile a source file into a libtool library object. + +This mode accepts the following additional options: + + -o OUTPUT-FILE set the output file name to OUTPUT-FILE + -no-suppress do not suppress compiler output for multiple passes + -prefer-pic try to build PIC objects only + -prefer-non-pic try to build non-PIC objects only + -shared do not build a \`.o' file suitable for static linking + -static only build a \`.o' file suitable for static linking + -Wc,FLAG pass FLAG directly to the compiler + +COMPILE-COMMAND is a command to be used in creating a \`standard' object file +from the given SOURCEFILE. + +The output file name is determined by removing the directory component from +SOURCEFILE, then substituting the C source code suffix \`.c' with the +library object suffix, \`.lo'." + ;; + + execute) + $ECHO \ +"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]... + +Automatically set library path, then run a program. + +This mode accepts the following additional options: + + -dlopen FILE add the directory containing FILE to the library path + +This mode sets the library path environment variable according to \`-dlopen' +flags. + +If any of the ARGS are libtool executable wrappers, then they are translated +into their corresponding uninstalled binary, and any of their required library +directories are added to the library path. + +Then, COMMAND is executed, with ARGS as arguments." + ;; + + finish) + $ECHO \ +"Usage: $progname [OPTION]... --mode=finish [LIBDIR]... + +Complete the installation of libtool libraries. + +Each LIBDIR is a directory that contains libtool libraries. + +The commands that this mode executes may require superuser privileges. Use +the \`--dry-run' option if you just want to see what would be executed." + ;; + + install) + $ECHO \ +"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND... + +Install executables or libraries. + +INSTALL-COMMAND is the installation command. The first component should be +either the \`install' or \`cp' program. + +The following components of INSTALL-COMMAND are treated specially: + + -inst-prefix-dir PREFIX-DIR Use PREFIX-DIR as a staging area for installation + +The rest of the components are interpreted as arguments to that command (only +BSD-compatible install options are recognized)." + ;; + + link) + $ECHO \ +"Usage: $progname [OPTION]... --mode=link LINK-COMMAND... + +Link object files or libraries together to form another library, or to +create an executable program. + +LINK-COMMAND is a command using the C compiler that you would use to create +a program from several object files. + +The following components of LINK-COMMAND are treated specially: + + -all-static do not do any dynamic linking at all + -avoid-version do not add a version suffix if possible + -bindir BINDIR specify path to binaries directory (for systems where + libraries must be found in the PATH setting at runtime) + -dlopen FILE \`-dlpreopen' FILE if it cannot be dlopened at runtime + -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols + -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3) + -export-symbols SYMFILE + try to export only the symbols listed in SYMFILE + -export-symbols-regex REGEX + try to export only the symbols matching REGEX + -LLIBDIR search LIBDIR for required installed libraries + -lNAME OUTPUT-FILE requires the installed library libNAME + -module build a library that can dlopened + -no-fast-install disable the fast-install mode + -no-install link a not-installable executable + -no-undefined declare that a library does not refer to external symbols + -o OUTPUT-FILE create OUTPUT-FILE from the specified objects + -objectlist FILE Use a list of object files found in FILE to specify objects + -precious-files-regex REGEX + don't remove output files matching REGEX + -release RELEASE specify package release information + -rpath LIBDIR the created library will eventually be installed in LIBDIR + -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries + -shared only do dynamic linking of libtool libraries + -shrext SUFFIX override the standard shared library file extension + -static do not do any dynamic linking of uninstalled libtool libraries + -static-libtool-libs + do not do any dynamic linking of libtool libraries + -version-info CURRENT[:REVISION[:AGE]] + specify library version info [each variable defaults to 0] + -weak LIBNAME declare that the target provides the LIBNAME interface + -Wc,FLAG + -Xcompiler FLAG pass linker-specific FLAG directly to the compiler + -Wl,FLAG + -Xlinker FLAG pass linker-specific FLAG directly to the linker + -XCClinker FLAG pass link-specific FLAG to the compiler driver (CC) + +All other options (arguments beginning with \`-') are ignored. + +Every other argument is treated as a filename. Files ending in \`.la' are +treated as uninstalled libtool libraries, other files are standard or library +object files. + +If the OUTPUT-FILE ends in \`.la', then a libtool library is created, +only library objects (\`.lo' files) may be specified, and \`-rpath' is +required, except when creating a convenience library. + +If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created +using \`ar' and \`ranlib', or on Windows using \`lib'. + +If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file +is created, otherwise an executable program is created." + ;; + + uninstall) + $ECHO \ +"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE... + +Remove libraries from an installation directory. + +RM is the name of the program to use to delete files associated with each FILE +(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed +to RM. + +If FILE is a libtool library, all the files associated with it are deleted. +Otherwise, only FILE itself is deleted using RM." + ;; + + *) + func_fatal_help "invalid operation mode \`$opt_mode'" + ;; + esac + + echo + $ECHO "Try \`$progname --help' for more information about other modes." +} + +# Now that we've collected a possible --mode arg, show help if necessary +if $opt_help; then + if test "$opt_help" = :; then + func_mode_help + else + { + func_help noexit + for opt_mode in compile link execute install finish uninstall clean; do + func_mode_help + done + } | sed -n '1p; 2,$s/^Usage:/ or: /p' + { + func_help noexit + for opt_mode in compile link execute install finish uninstall clean; do + echo + func_mode_help + done + } | + sed '1d + /^When reporting/,/^Report/{ + H + d + } + $x + /information about other modes/d + /more detailed .*MODE/d + s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/' + fi + exit $? +fi + + +# func_mode_execute arg... +func_mode_execute () +{ + $opt_debug + # The first argument is the command name. + cmd="$nonopt" + test -z "$cmd" && \ + func_fatal_help "you must specify a COMMAND" + + # Handle -dlopen flags immediately. + for file in $opt_dlopen; do + test -f "$file" \ + || func_fatal_help "\`$file' is not a file" + + dir= + case $file in + *.la) + func_resolve_sysroot "$file" + file=$func_resolve_sysroot_result + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$file" \ + || func_fatal_help "\`$lib' is not a valid libtool archive" + + # Read the libtool library. + dlname= + library_names= + func_source "$file" + + # Skip this library if it cannot be dlopened. + if test -z "$dlname"; then + # Warn if it was a shared library. + test -n "$library_names" && \ + func_warning "\`$file' was not linked with \`-export-dynamic'" + continue + fi + + func_dirname "$file" "" "." + dir="$func_dirname_result" + + if test -f "$dir/$objdir/$dlname"; then + func_append dir "/$objdir" + else + if test ! -f "$dir/$dlname"; then + func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'" + fi + fi + ;; + + *.lo) + # Just add the directory containing the .lo file. + func_dirname "$file" "" "." + dir="$func_dirname_result" + ;; + + *) + func_warning "\`-dlopen' is ignored for non-libtool libraries and objects" + continue + ;; + esac + + # Get the absolute pathname. + absdir=`cd "$dir" && pwd` + test -n "$absdir" && dir="$absdir" + + # Now add the directory to shlibpath_var. + if eval "test -z \"\$$shlibpath_var\""; then + eval "$shlibpath_var=\"\$dir\"" + else + eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\"" + fi + done + + # This variable tells wrapper scripts just to set shlibpath_var + # rather than running their programs. + libtool_execute_magic="$magic" + + # Check if any of the arguments is a wrapper script. + args= + for file + do + case $file in + -* | *.la | *.lo ) ;; + *) + # Do a test to see if this is really a libtool program. + if func_ltwrapper_script_p "$file"; then + func_source "$file" + # Transform arg to wrapped name. + file="$progdir/$program" + elif func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + func_source "$func_ltwrapper_scriptname_result" + # Transform arg to wrapped name. + file="$progdir/$program" + fi + ;; + esac + # Quote arguments (to preserve shell metacharacters). + func_append_quoted args "$file" + done + + if test "X$opt_dry_run" = Xfalse; then + if test -n "$shlibpath_var"; then + # Export the shlibpath_var. + eval "export $shlibpath_var" + fi + + # Restore saved environment variables + for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES + do + eval "if test \"\${save_$lt_var+set}\" = set; then + $lt_var=\$save_$lt_var; export $lt_var + else + $lt_unset $lt_var + fi" + done + + # Now prepare to actually exec the command. + exec_cmd="\$cmd$args" + else + # Display what would be done. + if test -n "$shlibpath_var"; then + eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\"" + echo "export $shlibpath_var" + fi + $ECHO "$cmd$args" + exit $EXIT_SUCCESS + fi +} + +test "$opt_mode" = execute && func_mode_execute ${1+"$@"} + + +# func_mode_finish arg... +func_mode_finish () +{ + $opt_debug + libs= + libdirs= + admincmds= + + for opt in "$nonopt" ${1+"$@"} + do + if test -d "$opt"; then + func_append libdirs " $opt" + + elif test -f "$opt"; then + if func_lalib_unsafe_p "$opt"; then + func_append libs " $opt" + else + func_warning "\`$opt' is not a valid libtool archive" + fi + + else + func_fatal_error "invalid argument \`$opt'" + fi + done + + if test -n "$libs"; then + if test -n "$lt_sysroot"; then + sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"` + sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;" + else + sysroot_cmd= + fi + + # Remove sysroot references + if $opt_dry_run; then + for lib in $libs; do + echo "removing references to $lt_sysroot and \`=' prefixes from $lib" + done + else + tmpdir=`func_mktempdir` + for lib in $libs; do + sed -e "${sysroot_cmd} s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \ + > $tmpdir/tmp-la + mv -f $tmpdir/tmp-la $lib + done + ${RM}r "$tmpdir" + fi + fi + + if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then + for libdir in $libdirs; do + if test -n "$finish_cmds"; then + # Do each command in the finish commands. + func_execute_cmds "$finish_cmds" 'admincmds="$admincmds +'"$cmd"'"' + fi + if test -n "$finish_eval"; then + # Do the single finish_eval. + eval cmds=\"$finish_eval\" + $opt_dry_run || eval "$cmds" || func_append admincmds " + $cmds" + fi + done + fi + + # Exit here if they wanted silent mode. + $opt_silent && exit $EXIT_SUCCESS + + if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then + echo "----------------------------------------------------------------------" + echo "Libraries have been installed in:" + for libdir in $libdirs; do + $ECHO " $libdir" + done + echo + echo "If you ever happen to want to link against installed libraries" + echo "in a given directory, LIBDIR, you must either use libtool, and" + echo "specify the full pathname of the library, or use the \`-LLIBDIR'" + echo "flag during linking and do at least one of the following:" + if test -n "$shlibpath_var"; then + echo " - add LIBDIR to the \`$shlibpath_var' environment variable" + echo " during execution" + fi + if test -n "$runpath_var"; then + echo " - add LIBDIR to the \`$runpath_var' environment variable" + echo " during linking" + fi + if test -n "$hardcode_libdir_flag_spec"; then + libdir=LIBDIR + eval flag=\"$hardcode_libdir_flag_spec\" + + $ECHO " - use the \`$flag' linker flag" + fi + if test -n "$admincmds"; then + $ECHO " - have your system administrator run these commands:$admincmds" + fi + if test -f /etc/ld.so.conf; then + echo " - have your system administrator add LIBDIR to \`/etc/ld.so.conf'" + fi + echo + + echo "See any operating system documentation about shared libraries for" + case $host in + solaris2.[6789]|solaris2.1[0-9]) + echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" + echo "pages." + ;; + *) + echo "more information, such as the ld(1) and ld.so(8) manual pages." + ;; + esac + echo "----------------------------------------------------------------------" + fi + exit $EXIT_SUCCESS +} + +test "$opt_mode" = finish && func_mode_finish ${1+"$@"} + + +# func_mode_install arg... +func_mode_install () +{ + $opt_debug + # There may be an optional sh(1) argument at the beginning of + # install_prog (especially on Windows NT). + if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh || + # Allow the use of GNU shtool's install command. + case $nonopt in *shtool*) :;; *) false;; esac; then + # Aesthetically quote it. + func_quote_for_eval "$nonopt" + install_prog="$func_quote_for_eval_result " + arg=$1 + shift + else + install_prog= + arg=$nonopt + fi + + # The real first argument should be the name of the installation program. + # Aesthetically quote it. + func_quote_for_eval "$arg" + func_append install_prog "$func_quote_for_eval_result" + install_shared_prog=$install_prog + case " $install_prog " in + *[\\\ /]cp\ *) install_cp=: ;; + *) install_cp=false ;; + esac + + # We need to accept at least all the BSD install flags. + dest= + files= + opts= + prev= + install_type= + isdir=no + stripme= + no_mode=: + for arg + do + arg2= + if test -n "$dest"; then + func_append files " $dest" + dest=$arg + continue + fi + + case $arg in + -d) isdir=yes ;; + -f) + if $install_cp; then :; else + prev=$arg + fi + ;; + -g | -m | -o) + prev=$arg + ;; + -s) + stripme=" -s" + continue + ;; + -*) + ;; + *) + # If the previous option needed an argument, then skip it. + if test -n "$prev"; then + if test "x$prev" = x-m && test -n "$install_override_mode"; then + arg2=$install_override_mode + no_mode=false + fi + prev= + else + dest=$arg + continue + fi + ;; + esac + + # Aesthetically quote the argument. + func_quote_for_eval "$arg" + func_append install_prog " $func_quote_for_eval_result" + if test -n "$arg2"; then + func_quote_for_eval "$arg2" + fi + func_append install_shared_prog " $func_quote_for_eval_result" + done + + test -z "$install_prog" && \ + func_fatal_help "you must specify an install program" + + test -n "$prev" && \ + func_fatal_help "the \`$prev' option requires an argument" + + if test -n "$install_override_mode" && $no_mode; then + if $install_cp; then :; else + func_quote_for_eval "$install_override_mode" + func_append install_shared_prog " -m $func_quote_for_eval_result" + fi + fi + + if test -z "$files"; then + if test -z "$dest"; then + func_fatal_help "no file or destination specified" + else + func_fatal_help "you must specify a destination" + fi + fi + + # Strip any trailing slash from the destination. + func_stripname '' '/' "$dest" + dest=$func_stripname_result + + # Check to see that the destination is a directory. + test -d "$dest" && isdir=yes + if test "$isdir" = yes; then + destdir="$dest" + destname= + else + func_dirname_and_basename "$dest" "" "." + destdir="$func_dirname_result" + destname="$func_basename_result" + + # Not a directory, so check to see that there is only one file specified. + set dummy $files; shift + test "$#" -gt 1 && \ + func_fatal_help "\`$dest' is not a directory" + fi + case $destdir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + for file in $files; do + case $file in + *.lo) ;; + *) + func_fatal_help "\`$destdir' must be an absolute directory name" + ;; + esac + done + ;; + esac + + # This variable tells wrapper scripts just to set variables rather + # than running their programs. + libtool_install_magic="$magic" + + staticlibs= + future_libdirs= + current_libdirs= + for file in $files; do + + # Do each installation. + case $file in + *.$libext) + # Do the static libraries later. + func_append staticlibs " $file" + ;; + + *.la) + func_resolve_sysroot "$file" + file=$func_resolve_sysroot_result + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$file" \ + || func_fatal_help "\`$file' is not a valid libtool archive" + + library_names= + old_library= + relink_command= + func_source "$file" + + # Add the libdir to current_libdirs if it is the destination. + if test "X$destdir" = "X$libdir"; then + case "$current_libdirs " in + *" $libdir "*) ;; + *) func_append current_libdirs " $libdir" ;; + esac + else + # Note the libdir as a future libdir. + case "$future_libdirs " in + *" $libdir "*) ;; + *) func_append future_libdirs " $libdir" ;; + esac + fi + + func_dirname "$file" "/" "" + dir="$func_dirname_result" + func_append dir "$objdir" + + if test -n "$relink_command"; then + # Determine the prefix the user has applied to our future dir. + inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` + + # Don't allow the user to place us outside of our expected + # location b/c this prevents finding dependent libraries that + # are installed to the same prefix. + # At present, this check doesn't affect windows .dll's that + # are installed into $libdir/../bin (currently, that works fine) + # but it's something to keep an eye on. + test "$inst_prefix_dir" = "$destdir" && \ + func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir" + + if test -n "$inst_prefix_dir"; then + # Stick the inst_prefix_dir data into the link command. + relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` + else + relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` + fi + + func_warning "relinking \`$file'" + func_show_eval "$relink_command" \ + 'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"' + fi + + # See the names of the shared library. + set dummy $library_names; shift + if test -n "$1"; then + realname="$1" + shift + + srcname="$realname" + test -n "$relink_command" && srcname="$realname"T + + # Install the shared library and build the symlinks. + func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ + 'exit $?' + tstripme="$stripme" + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + case $realname in + *.dll.a) + tstripme="" + ;; + esac + ;; + esac + if test -n "$tstripme" && test -n "$striplib"; then + func_show_eval "$striplib $destdir/$realname" 'exit $?' + fi + + if test "$#" -gt 0; then + # Delete the old symlinks, and create new ones. + # Try `ln -sf' first, because the `ln' binary might depend on + # the symlink we replace! Solaris /bin/ln does not understand -f, + # so we also need to try rm && ln -s. + for linkname + do + test "$linkname" != "$realname" \ + && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" + done + fi + + # Do each command in the postinstall commands. + lib="$destdir/$realname" + func_execute_cmds "$postinstall_cmds" 'exit $?' + fi + + # Install the pseudo-library for information purposes. + func_basename "$file" + name="$func_basename_result" + instname="$dir/$name"i + func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' + + # Maybe install the static library, too. + test -n "$old_library" && func_append staticlibs " $dir/$old_library" + ;; + + *.lo) + # Install (i.e. copy) a libtool object. + + # Figure out destination file name, if it wasn't already specified. + if test -n "$destname"; then + destfile="$destdir/$destname" + else + func_basename "$file" + destfile="$func_basename_result" + destfile="$destdir/$destfile" + fi + + # Deduce the name of the destination old-style object file. + case $destfile in + *.lo) + func_lo2o "$destfile" + staticdest=$func_lo2o_result + ;; + *.$objext) + staticdest="$destfile" + destfile= + ;; + *) + func_fatal_help "cannot copy a libtool object to \`$destfile'" + ;; + esac + + # Install the libtool object if requested. + test -n "$destfile" && \ + func_show_eval "$install_prog $file $destfile" 'exit $?' + + # Install the old object if enabled. + if test "$build_old_libs" = yes; then + # Deduce the name of the old-style object file. + func_lo2o "$file" + staticobj=$func_lo2o_result + func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' + fi + exit $EXIT_SUCCESS + ;; + + *) + # Figure out destination file name, if it wasn't already specified. + if test -n "$destname"; then + destfile="$destdir/$destname" + else + func_basename "$file" + destfile="$func_basename_result" + destfile="$destdir/$destfile" + fi + + # If the file is missing, and there is a .exe on the end, strip it + # because it is most likely a libtool script we actually want to + # install + stripped_ext="" + case $file in + *.exe) + if test ! -f "$file"; then + func_stripname '' '.exe' "$file" + file=$func_stripname_result + stripped_ext=".exe" + fi + ;; + esac + + # Do a test to see if this is really a libtool program. + case $host in + *cygwin* | *mingw*) + if func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + wrapper=$func_ltwrapper_scriptname_result + else + func_stripname '' '.exe' "$file" + wrapper=$func_stripname_result + fi + ;; + *) + wrapper=$file + ;; + esac + if func_ltwrapper_script_p "$wrapper"; then + notinst_deplibs= + relink_command= + + func_source "$wrapper" + + # Check the variables that should have been set. + test -z "$generated_by_libtool_version" && \ + func_fatal_error "invalid libtool wrapper script \`$wrapper'" + + finalize=yes + for lib in $notinst_deplibs; do + # Check to see that each library is installed. + libdir= + if test -f "$lib"; then + func_source "$lib" + fi + libfile="$libdir/"`$ECHO "$lib" | $SED 's%^.*/%%g'` ### testsuite: skip nested quoting test + if test -n "$libdir" && test ! -f "$libfile"; then + func_warning "\`$lib' has not been installed in \`$libdir'" + finalize=no + fi + done + + relink_command= + func_source "$wrapper" + + outputname= + if test "$fast_install" = no && test -n "$relink_command"; then + $opt_dry_run || { + if test "$finalize" = yes; then + tmpdir=`func_mktempdir` + func_basename "$file$stripped_ext" + file="$func_basename_result" + outputname="$tmpdir/$file" + # Replace the output file specification. + relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` + + $opt_silent || { + func_quote_for_expand "$relink_command" + eval "func_echo $func_quote_for_expand_result" + } + if eval "$relink_command"; then : + else + func_error "error: relink \`$file' with the above command before installing it" + $opt_dry_run || ${RM}r "$tmpdir" + continue + fi + file="$outputname" + else + func_warning "cannot relink \`$file'" + fi + } + else + # Install the binary that we compiled earlier. + file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` + fi + fi + + # remove .exe since cygwin /usr/bin/install will append another + # one anyway + case $install_prog,$host in + */usr/bin/install*,*cygwin*) + case $file:$destfile in + *.exe:*.exe) + # this is ok + ;; + *.exe:*) + destfile=$destfile.exe + ;; + *:*.exe) + func_stripname '' '.exe' "$destfile" + destfile=$func_stripname_result + ;; + esac + ;; + esac + func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' + $opt_dry_run || if test -n "$outputname"; then + ${RM}r "$tmpdir" + fi + ;; + esac + done + + for file in $staticlibs; do + func_basename "$file" + name="$func_basename_result" + + # Set up the ranlib parameters. + oldlib="$destdir/$name" + func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 + tool_oldlib=$func_to_tool_file_result + + func_show_eval "$install_prog \$file \$oldlib" 'exit $?' + + if test -n "$stripme" && test -n "$old_striplib"; then + func_show_eval "$old_striplib $tool_oldlib" 'exit $?' + fi + + # Do each command in the postinstall commands. + func_execute_cmds "$old_postinstall_cmds" 'exit $?' + done + + test -n "$future_libdirs" && \ + func_warning "remember to run \`$progname --finish$future_libdirs'" + + if test -n "$current_libdirs"; then + # Maybe just do a dry run. + $opt_dry_run && current_libdirs=" -n$current_libdirs" + exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs' + else + exit $EXIT_SUCCESS + fi +} + +test "$opt_mode" = install && func_mode_install ${1+"$@"} + + +# func_generate_dlsyms outputname originator pic_p +# Extract symbols from dlprefiles and create ${outputname}S.o with +# a dlpreopen symbol table. +func_generate_dlsyms () +{ + $opt_debug + my_outputname="$1" + my_originator="$2" + my_pic_p="${3-no}" + my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'` + my_dlsyms= + + if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then + if test -n "$NM" && test -n "$global_symbol_pipe"; then + my_dlsyms="${my_outputname}S.c" + else + func_error "not configured to extract global symbols from dlpreopened files" + fi + fi + + if test -n "$my_dlsyms"; then + case $my_dlsyms in + "") ;; + *.c) + # Discover the nlist of each of the dlfiles. + nlist="$output_objdir/${my_outputname}.nm" + + func_show_eval "$RM $nlist ${nlist}S ${nlist}T" + + # Parse the name list into a source file. + func_verbose "creating $output_objdir/$my_dlsyms" + + $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ +/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */ +/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */ + +#ifdef __cplusplus +extern \"C\" { +#endif + +#if defined(__GNUC__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) +#pragma GCC diagnostic ignored \"-Wstrict-prototypes\" +#endif + +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE) +/* DATA imports from DLLs on WIN32 con't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT_DLSYM_CONST +#elif defined(__osf__) +/* This system does not cope well with relocations in const data. */ +# define LT_DLSYM_CONST +#else +# define LT_DLSYM_CONST const +#endif + +/* External symbol declarations for the compiler. */\ +" + + if test "$dlself" = yes; then + func_verbose "generating symbol list for \`$output'" + + $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" + + # Add our own program objects to the symbol list. + progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` + for progfile in $progfiles; do + func_to_tool_file "$progfile" func_convert_file_msys_to_w32 + func_verbose "extracting global C symbols from \`$func_to_tool_file_result'" + $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" + done + + if test -n "$exclude_expsyms"; then + $opt_dry_run || { + eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + } + fi + + if test -n "$export_symbols_regex"; then + $opt_dry_run || { + eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + } + fi + + # Prepare the list of exported symbols + if test -z "$export_symbols"; then + export_symbols="$output_objdir/$outputname.exp" + $opt_dry_run || { + $RM $export_symbols + eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' + case $host in + *cygwin* | *mingw* | *cegcc* ) + eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' + eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' + ;; + esac + } + else + $opt_dry_run || { + eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' + eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + case $host in + *cygwin* | *mingw* | *cegcc* ) + eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' + eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' + ;; + esac + } + fi + fi + + for dlprefile in $dlprefiles; do + func_verbose "extracting global C symbols from \`$dlprefile'" + func_basename "$dlprefile" + name="$func_basename_result" + case $host in + *cygwin* | *mingw* | *cegcc* ) + # if an import library, we need to obtain dlname + if func_win32_import_lib_p "$dlprefile"; then + func_tr_sh "$dlprefile" + eval "curr_lafile=\$libfile_$func_tr_sh_result" + dlprefile_dlbasename="" + if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then + # Use subshell, to avoid clobbering current variable values + dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` + if test -n "$dlprefile_dlname" ; then + func_basename "$dlprefile_dlname" + dlprefile_dlbasename="$func_basename_result" + else + # no lafile. user explicitly requested -dlpreopen . + $sharedlib_from_linklib_cmd "$dlprefile" + dlprefile_dlbasename=$sharedlib_from_linklib_result + fi + fi + $opt_dry_run || { + if test -n "$dlprefile_dlbasename" ; then + eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' + else + func_warning "Could not compute DLL name from $name" + eval '$ECHO ": $name " >> "$nlist"' + fi + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | + $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" + } + else # not an import lib + $opt_dry_run || { + eval '$ECHO ": $name " >> "$nlist"' + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" + } + fi + ;; + *) + $opt_dry_run || { + eval '$ECHO ": $name " >> "$nlist"' + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" + } + ;; + esac + done + + $opt_dry_run || { + # Make sure we have at least an empty file. + test -f "$nlist" || : > "$nlist" + + if test -n "$exclude_expsyms"; then + $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T + $MV "$nlist"T "$nlist" + fi + + # Try sorting and uniquifying the output. + if $GREP -v "^: " < "$nlist" | + if sort -k 3 /dev/null 2>&1; then + sort -k 3 + else + sort +2 + fi | + uniq > "$nlist"S; then + : + else + $GREP -v "^: " < "$nlist" > "$nlist"S + fi + + if test -f "$nlist"S; then + eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' + else + echo '/* NONE */' >> "$output_objdir/$my_dlsyms" + fi + + echo >> "$output_objdir/$my_dlsyms" "\ + +/* The mapping between symbol names and symbols. */ +typedef struct { + const char *name; + void *address; +} lt_dlsymlist; +extern LT_DLSYM_CONST lt_dlsymlist +lt_${my_prefix}_LTX_preloaded_symbols[]; +LT_DLSYM_CONST lt_dlsymlist +lt_${my_prefix}_LTX_preloaded_symbols[] = +{\ + { \"$my_originator\", (void *) 0 }," + + case $need_lib_prefix in + no) + eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" + ;; + *) + eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" + ;; + esac + echo >> "$output_objdir/$my_dlsyms" "\ + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt_${my_prefix}_LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif\ +" + } # !$opt_dry_run + + pic_flag_for_symtable= + case "$compile_command " in + *" -static "*) ;; + *) + case $host in + # compiling the symbol table file with pic_flag works around + # a FreeBSD bug that causes programs to crash when -lm is + # linked before any other PIC object. But we must not use + # pic_flag when linking with -static. The problem exists in + # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. + *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) + pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; + *-*-hpux*) + pic_flag_for_symtable=" $pic_flag" ;; + *) + if test "X$my_pic_p" != Xno; then + pic_flag_for_symtable=" $pic_flag" + fi + ;; + esac + ;; + esac + symtab_cflags= + for arg in $LTCFLAGS; do + case $arg in + -pie | -fpie | -fPIE) ;; + *) func_append symtab_cflags " $arg" ;; + esac + done + + # Now compile the dynamic symbol file. + func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' + + # Clean up the generated files. + func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"' + + # Transform the symbol file into the correct name. + symfileobj="$output_objdir/${my_outputname}S.$objext" + case $host in + *cygwin* | *mingw* | *cegcc* ) + if test -f "$output_objdir/$my_outputname.def"; then + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` + else + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` + fi + ;; + *) + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` + ;; + esac + ;; + *) + func_fatal_error "unknown suffix for \`$my_dlsyms'" + ;; + esac + else + # We keep going just in case the user didn't refer to + # lt_preloaded_symbols. The linker will fail if global_symbol_pipe + # really was required. + + # Nullify the symbol file. + compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` + fi +} + +# func_win32_libid arg +# return the library type of file 'arg' +# +# Need a lot of goo to handle *both* DLLs and import libs +# Has to be a shell function in order to 'eat' the argument +# that is supplied when $file_magic_command is called. +# Despite the name, also deal with 64 bit binaries. +func_win32_libid () +{ + $opt_debug + win32_libid_type="unknown" + win32_fileres=`file -L $1 2>/dev/null` + case $win32_fileres in + *ar\ archive\ import\ library*) # definitely import + win32_libid_type="x86 archive import" + ;; + *ar\ archive*) # could be an import, or static + # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. + if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | + $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then + func_to_tool_file "$1" func_convert_file_msys_to_w32 + win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | + $SED -n -e ' + 1,100{ + / I /{ + s,.*,import, + p + q + } + }'` + case $win32_nmres in + import*) win32_libid_type="x86 archive import";; + *) win32_libid_type="x86 archive static";; + esac + fi + ;; + *DLL*) + win32_libid_type="x86 DLL" + ;; + *executable*) # but shell scripts are "executable" too... + case $win32_fileres in + *MS\ Windows\ PE\ Intel*) + win32_libid_type="x86 DLL" + ;; + esac + ;; + esac + $ECHO "$win32_libid_type" +} + +# func_cygming_dll_for_implib ARG +# +# Platform-specific function to extract the +# name of the DLL associated with the specified +# import library ARG. +# Invoked by eval'ing the libtool variable +# $sharedlib_from_linklib_cmd +# Result is available in the variable +# $sharedlib_from_linklib_result +func_cygming_dll_for_implib () +{ + $opt_debug + sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` +} + +# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs +# +# The is the core of a fallback implementation of a +# platform-specific function to extract the name of the +# DLL associated with the specified import library LIBNAME. +# +# SECTION_NAME is either .idata$6 or .idata$7, depending +# on the platform and compiler that created the implib. +# +# Echos the name of the DLL associated with the +# specified import library. +func_cygming_dll_for_implib_fallback_core () +{ + $opt_debug + match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` + $OBJDUMP -s --section "$1" "$2" 2>/dev/null | + $SED '/^Contents of section '"$match_literal"':/{ + # Place marker at beginning of archive member dllname section + s/.*/====MARK====/ + p + d + } + # These lines can sometimes be longer than 43 characters, but + # are always uninteresting + /:[ ]*file format pe[i]\{,1\}-/d + /^In archive [^:]*:/d + # Ensure marker is printed + /^====MARK====/p + # Remove all lines with less than 43 characters + /^.\{43\}/!d + # From remaining lines, remove first 43 characters + s/^.\{43\}//' | + $SED -n ' + # Join marker and all lines until next marker into a single line + /^====MARK====/ b para + H + $ b para + b + :para + x + s/\n//g + # Remove the marker + s/^====MARK====// + # Remove trailing dots and whitespace + s/[\. \t]*$// + # Print + /./p' | + # we now have a list, one entry per line, of the stringified + # contents of the appropriate section of all members of the + # archive which possess that section. Heuristic: eliminate + # all those which have a first or second character that is + # a '.' (that is, objdump's representation of an unprintable + # character.) This should work for all archives with less than + # 0x302f exports -- but will fail for DLLs whose name actually + # begins with a literal '.' or a single character followed by + # a '.'. + # + # Of those that remain, print the first one. + $SED -e '/^\./d;/^.\./d;q' +} + +# func_cygming_gnu_implib_p ARG +# This predicate returns with zero status (TRUE) if +# ARG is a GNU/binutils-style import library. Returns +# with nonzero status (FALSE) otherwise. +func_cygming_gnu_implib_p () +{ + $opt_debug + func_to_tool_file "$1" func_convert_file_msys_to_w32 + func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` + test -n "$func_cygming_gnu_implib_tmp" +} + +# func_cygming_ms_implib_p ARG +# This predicate returns with zero status (TRUE) if +# ARG is an MS-style import library. Returns +# with nonzero status (FALSE) otherwise. +func_cygming_ms_implib_p () +{ + $opt_debug + func_to_tool_file "$1" func_convert_file_msys_to_w32 + func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` + test -n "$func_cygming_ms_implib_tmp" +} + +# func_cygming_dll_for_implib_fallback ARG +# Platform-specific function to extract the +# name of the DLL associated with the specified +# import library ARG. +# +# This fallback implementation is for use when $DLLTOOL +# does not support the --identify-strict option. +# Invoked by eval'ing the libtool variable +# $sharedlib_from_linklib_cmd +# Result is available in the variable +# $sharedlib_from_linklib_result +func_cygming_dll_for_implib_fallback () +{ + $opt_debug + if func_cygming_gnu_implib_p "$1" ; then + # binutils import library + sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` + elif func_cygming_ms_implib_p "$1" ; then + # ms-generated import library + sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` + else + # unknown + sharedlib_from_linklib_result="" + fi +} + + +# func_extract_an_archive dir oldlib +func_extract_an_archive () +{ + $opt_debug + f_ex_an_ar_dir="$1"; shift + f_ex_an_ar_oldlib="$1" + if test "$lock_old_archive_extraction" = yes; then + lockfile=$f_ex_an_ar_oldlib.lock + until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do + func_echo "Waiting for $lockfile to be removed" + sleep 2 + done + fi + func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ + 'stat=$?; rm -f "$lockfile"; exit $stat' + if test "$lock_old_archive_extraction" = yes; then + $opt_dry_run || rm -f "$lockfile" + fi + if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then + : + else + func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" + fi +} + + +# func_extract_archives gentop oldlib ... +func_extract_archives () +{ + $opt_debug + my_gentop="$1"; shift + my_oldlibs=${1+"$@"} + my_oldobjs="" + my_xlib="" + my_xabs="" + my_xdir="" + + for my_xlib in $my_oldlibs; do + # Extract the objects. + case $my_xlib in + [\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;; + *) my_xabs=`pwd`"/$my_xlib" ;; + esac + func_basename "$my_xlib" + my_xlib="$func_basename_result" + my_xlib_u=$my_xlib + while :; do + case " $extracted_archives " in + *" $my_xlib_u "*) + func_arith $extracted_serial + 1 + extracted_serial=$func_arith_result + my_xlib_u=lt$extracted_serial-$my_xlib ;; + *) break ;; + esac + done + extracted_archives="$extracted_archives $my_xlib_u" + my_xdir="$my_gentop/$my_xlib_u" + + func_mkdir_p "$my_xdir" + + case $host in + *-darwin*) + func_verbose "Extracting $my_xabs" + # Do not bother doing anything if just a dry run + $opt_dry_run || { + darwin_orig_dir=`pwd` + cd $my_xdir || exit $? + darwin_archive=$my_xabs + darwin_curdir=`pwd` + darwin_base_archive=`basename "$darwin_archive"` + darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` + if test -n "$darwin_arches"; then + darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` + darwin_arch= + func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" + for darwin_arch in $darwin_arches ; do + func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}" + $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}" + cd "unfat-$$/${darwin_base_archive}-${darwin_arch}" + func_extract_an_archive "`pwd`" "${darwin_base_archive}" + cd "$darwin_curdir" + $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" + done # $darwin_arches + ## Okay now we've a bunch of thin objects, gotta fatten them up :) + darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u` + darwin_file= + darwin_files= + for darwin_file in $darwin_filelist; do + darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` + $LIPO -create -output "$darwin_file" $darwin_files + done # $darwin_filelist + $RM -rf unfat-$$ + cd "$darwin_orig_dir" + else + cd $darwin_orig_dir + func_extract_an_archive "$my_xdir" "$my_xabs" + fi # $darwin_arches + } # !$opt_dry_run + ;; + *) + func_extract_an_archive "$my_xdir" "$my_xabs" + ;; + esac + my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` + done + + func_extract_archives_result="$my_oldobjs" +} + + +# func_emit_wrapper [arg=no] +# +# Emit a libtool wrapper script on stdout. +# Don't directly open a file because we may want to +# incorporate the script contents within a cygwin/mingw +# wrapper executable. Must ONLY be called from within +# func_mode_link because it depends on a number of variables +# set therein. +# +# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR +# variable will take. If 'yes', then the emitted script +# will assume that the directory in which it is stored is +# the $objdir directory. This is a cygwin/mingw-specific +# behavior. +func_emit_wrapper () +{ + func_emit_wrapper_arg1=${1-no} + + $ECHO "\ +#! $SHELL + +# $output - temporary wrapper script for $objdir/$outputname +# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION +# +# The $output program cannot be directly executed until all the libtool +# libraries that it depends on are installed. +# +# This wrapper script should never be moved out of the build directory. +# If it is, it will not operate correctly. + +# Sed substitution that helps us do robust quoting. It backslashifies +# metacharacters that are still active within double-quoted strings. +sed_quote_subst='$sed_quote_subst' + +# Be Bourne compatible +if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac +fi +BIN_SH=xpg4; export BIN_SH # for Tru64 +DUALCASE=1; export DUALCASE # for MKS sh + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +relink_command=\"$relink_command\" + +# This environment variable determines our operation mode. +if test \"\$libtool_install_magic\" = \"$magic\"; then + # install mode needs the following variables: + generated_by_libtool_version='$macro_version' + notinst_deplibs='$notinst_deplibs' +else + # When we are sourced in execute mode, \$file and \$ECHO are already set. + if test \"\$libtool_execute_magic\" != \"$magic\"; then + file=\"\$0\"" + + qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"` + $ECHO "\ + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$1 +_LTECHO_EOF' +} + ECHO=\"$qECHO\" + fi + +# Very basic option parsing. These options are (a) specific to +# the libtool wrapper, (b) are identical between the wrapper +# /script/ and the wrapper /executable/ which is used only on +# windows platforms, and (c) all begin with the string "--lt-" +# (application programs are unlikely to have options which match +# this pattern). +# +# There are only two supported options: --lt-debug and +# --lt-dump-script. There is, deliberately, no --lt-help. +# +# The first argument to this parsing function should be the +# script's $0 value, followed by "$@". +lt_option_debug= +func_parse_lt_options () +{ + lt_script_arg0=\$0 + shift + for lt_opt + do + case \"\$lt_opt\" in + --lt-debug) lt_option_debug=1 ;; + --lt-dump-script) + lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\` + test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=. + lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\` + cat \"\$lt_dump_D/\$lt_dump_F\" + exit 0 + ;; + --lt-*) + \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2 + exit 1 + ;; + esac + done + + # Print the debug banner immediately: + if test -n \"\$lt_option_debug\"; then + echo \"${outputname}:${output}:\${LINENO}: libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\" 1>&2 + fi +} + +# Used when --lt-debug. Prints its arguments to stdout +# (redirection is the responsibility of the caller) +func_lt_dump_args () +{ + lt_dump_args_N=1; + for lt_arg + do + \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[\$lt_dump_args_N]: \$lt_arg\" + lt_dump_args_N=\`expr \$lt_dump_args_N + 1\` + done +} + +# Core function for launching the target application +func_exec_program_core () +{ +" + case $host in + # Backslashes separate directories on plain windows + *-*-mingw | *-*-os2* | *-cegcc*) + $ECHO "\ + if test -n \"\$lt_option_debug\"; then + \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir\\\\\$program\" 1>&2 + func_lt_dump_args \${1+\"\$@\"} 1>&2 + fi + exec \"\$progdir\\\\\$program\" \${1+\"\$@\"} +" + ;; + + *) + $ECHO "\ + if test -n \"\$lt_option_debug\"; then + \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir/\$program\" 1>&2 + func_lt_dump_args \${1+\"\$@\"} 1>&2 + fi + exec \"\$progdir/\$program\" \${1+\"\$@\"} +" + ;; + esac + $ECHO "\ + \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2 + exit 1 +} + +# A function to encapsulate launching the target application +# Strips options in the --lt-* namespace from \$@ and +# launches target application with the remaining arguments. +func_exec_program () +{ + case \" \$* \" in + *\\ --lt-*) + for lt_wr_arg + do + case \$lt_wr_arg in + --lt-*) ;; + *) set x \"\$@\" \"\$lt_wr_arg\"; shift;; + esac + shift + done ;; + esac + func_exec_program_core \${1+\"\$@\"} +} + + # Parse options + func_parse_lt_options \"\$0\" \${1+\"\$@\"} + + # Find the directory that this script lives in. + thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\` + test \"x\$thisdir\" = \"x\$file\" && thisdir=. + + # Follow symbolic links until we get to the real thisdir. + file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\` + while test -n \"\$file\"; do + destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\` + + # If there was a directory component, then change thisdir. + if test \"x\$destdir\" != \"x\$file\"; then + case \"\$destdir\" in + [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;; + *) thisdir=\"\$thisdir/\$destdir\" ;; + esac + fi + + file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\` + file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\` + done + + # Usually 'no', except on cygwin/mingw when embedded into + # the cwrapper. + WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1 + if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then + # special case for '.' + if test \"\$thisdir\" = \".\"; then + thisdir=\`pwd\` + fi + # remove .libs from thisdir + case \"\$thisdir\" in + *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;; + $objdir ) thisdir=. ;; + esac + fi + + # Try to get the absolute directory name. + absdir=\`cd \"\$thisdir\" && pwd\` + test -n \"\$absdir\" && thisdir=\"\$absdir\" +" + + if test "$fast_install" = yes; then + $ECHO "\ + program=lt-'$outputname'$exeext + progdir=\"\$thisdir/$objdir\" + + if test ! -f \"\$progdir/\$program\" || + { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\ + test \"X\$file\" != \"X\$progdir/\$program\"; }; then + + file=\"\$\$-\$program\" + + if test ! -d \"\$progdir\"; then + $MKDIR \"\$progdir\" + else + $RM \"\$progdir/\$file\" + fi" + + $ECHO "\ + + # relink executable if necessary + if test -n \"\$relink_command\"; then + if relink_command_output=\`eval \$relink_command 2>&1\`; then : + else + $ECHO \"\$relink_command_output\" >&2 + $RM \"\$progdir/\$file\" + exit 1 + fi + fi + + $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null || + { $RM \"\$progdir/\$program\"; + $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; } + $RM \"\$progdir/\$file\" + fi" + else + $ECHO "\ + program='$outputname' + progdir=\"\$thisdir/$objdir\" +" + fi + + $ECHO "\ + + if test -f \"\$progdir/\$program\"; then" + + # fixup the dll searchpath if we need to. + # + # Fix the DLL searchpath if we need to. Do this before prepending + # to shlibpath, because on Windows, both are PATH and uninstalled + # libraries must come first. + if test -n "$dllsearchpath"; then + $ECHO "\ + # Add the dll search path components to the executable PATH + PATH=$dllsearchpath:\$PATH +" + fi + + # Export our shlibpath_var if we have one. + if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then + $ECHO "\ + # Add our own library path to $shlibpath_var + $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" + + # Some systems cannot cope with colon-terminated $shlibpath_var + # The second colon is a workaround for a bug in BeOS R4 sed + $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` + + export $shlibpath_var +" + fi + + $ECHO "\ + if test \"\$libtool_execute_magic\" != \"$magic\"; then + # Run the actual program with our arguments. + func_exec_program \${1+\"\$@\"} + fi + else + # The program doesn't exist. + \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2 + \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 + \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 + exit 1 + fi +fi\ +" +} + + +# func_emit_cwrapperexe_src +# emit the source code for a wrapper executable on stdout +# Must ONLY be called from within func_mode_link because +# it depends on a number of variable set therein. +func_emit_cwrapperexe_src () +{ + cat < +#include +#ifdef _MSC_VER +# include +# include +# include +#else +# include +# include +# ifdef __CYGWIN__ +# include +# endif +#endif +#include +#include +#include +#include +#include +#include +#include +#include + +/* declarations of non-ANSI functions */ +#if defined(__MINGW32__) +# ifdef __STRICT_ANSI__ +int _putenv (const char *); +# endif +#elif defined(__CYGWIN__) +# ifdef __STRICT_ANSI__ +char *realpath (const char *, char *); +int putenv (char *); +int setenv (const char *, const char *, int); +# endif +/* #elif defined (other platforms) ... */ +#endif + +/* portability defines, excluding path handling macros */ +#if defined(_MSC_VER) +# define setmode _setmode +# define stat _stat +# define chmod _chmod +# define getcwd _getcwd +# define putenv _putenv +# define S_IXUSR _S_IEXEC +# ifndef _INTPTR_T_DEFINED +# define _INTPTR_T_DEFINED +# define intptr_t int +# endif +#elif defined(__MINGW32__) +# define setmode _setmode +# define stat _stat +# define chmod _chmod +# define getcwd _getcwd +# define putenv _putenv +#elif defined(__CYGWIN__) +# define HAVE_SETENV +# define FOPEN_WB "wb" +/* #elif defined (other platforms) ... */ +#endif + +#if defined(PATH_MAX) +# define LT_PATHMAX PATH_MAX +#elif defined(MAXPATHLEN) +# define LT_PATHMAX MAXPATHLEN +#else +# define LT_PATHMAX 1024 +#endif + +#ifndef S_IXOTH +# define S_IXOTH 0 +#endif +#ifndef S_IXGRP +# define S_IXGRP 0 +#endif + +/* path handling portability macros */ +#ifndef DIR_SEPARATOR +# define DIR_SEPARATOR '/' +# define PATH_SEPARATOR ':' +#endif + +#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \ + defined (__OS2__) +# define HAVE_DOS_BASED_FILE_SYSTEM +# define FOPEN_WB "wb" +# ifndef DIR_SEPARATOR_2 +# define DIR_SEPARATOR_2 '\\' +# endif +# ifndef PATH_SEPARATOR_2 +# define PATH_SEPARATOR_2 ';' +# endif +#endif + +#ifndef DIR_SEPARATOR_2 +# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) +#else /* DIR_SEPARATOR_2 */ +# define IS_DIR_SEPARATOR(ch) \ + (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) +#endif /* DIR_SEPARATOR_2 */ + +#ifndef PATH_SEPARATOR_2 +# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) +#else /* PATH_SEPARATOR_2 */ +# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) +#endif /* PATH_SEPARATOR_2 */ + +#ifndef FOPEN_WB +# define FOPEN_WB "w" +#endif +#ifndef _O_BINARY +# define _O_BINARY 0 +#endif + +#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) +#define XFREE(stale) do { \ + if (stale) { free ((void *) stale); stale = 0; } \ +} while (0) + +#if defined(LT_DEBUGWRAPPER) +static int lt_debug = 1; +#else +static int lt_debug = 0; +#endif + +const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ + +void *xmalloc (size_t num); +char *xstrdup (const char *string); +const char *base_name (const char *name); +char *find_executable (const char *wrapper); +char *chase_symlinks (const char *pathspec); +int make_executable (const char *path); +int check_executable (const char *path); +char *strendzap (char *str, const char *pat); +void lt_debugprintf (const char *file, int line, const char *fmt, ...); +void lt_fatal (const char *file, int line, const char *message, ...); +static const char *nonnull (const char *s); +static const char *nonempty (const char *s); +void lt_setenv (const char *name, const char *value); +char *lt_extend_str (const char *orig_value, const char *add, int to_end); +void lt_update_exe_path (const char *name, const char *value); +void lt_update_lib_path (const char *name, const char *value); +char **prepare_spawn (char **argv); +void lt_dump_script (FILE *f); +EOF + + cat <= 0) + && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) + return 1; + else + return 0; +} + +int +make_executable (const char *path) +{ + int rval = 0; + struct stat st; + + lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", + nonempty (path)); + if ((!path) || (!*path)) + return 0; + + if (stat (path, &st) >= 0) + { + rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); + } + return rval; +} + +/* Searches for the full path of the wrapper. Returns + newly allocated full path name if found, NULL otherwise + Does not chase symlinks, even on platforms that support them. +*/ +char * +find_executable (const char *wrapper) +{ + int has_slash = 0; + const char *p; + const char *p_next; + /* static buffer for getcwd */ + char tmp[LT_PATHMAX + 1]; + int tmp_len; + char *concat_name; + + lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", + nonempty (wrapper)); + + if ((wrapper == NULL) || (*wrapper == '\0')) + return NULL; + + /* Absolute path? */ +#if defined (HAVE_DOS_BASED_FILE_SYSTEM) + if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') + { + concat_name = xstrdup (wrapper); + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } + else + { +#endif + if (IS_DIR_SEPARATOR (wrapper[0])) + { + concat_name = xstrdup (wrapper); + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } +#if defined (HAVE_DOS_BASED_FILE_SYSTEM) + } +#endif + + for (p = wrapper; *p; p++) + if (*p == '/') + { + has_slash = 1; + break; + } + if (!has_slash) + { + /* no slashes; search PATH */ + const char *path = getenv ("PATH"); + if (path != NULL) + { + for (p = path; *p; p = p_next) + { + const char *q; + size_t p_len; + for (q = p; *q; q++) + if (IS_PATH_SEPARATOR (*q)) + break; + p_len = q - p; + p_next = (*q == '\0' ? q : q + 1); + if (p_len == 0) + { + /* empty path: current directory */ + if (getcwd (tmp, LT_PATHMAX) == NULL) + lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", + nonnull (strerror (errno))); + tmp_len = strlen (tmp); + concat_name = + XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, tmp, tmp_len); + concat_name[tmp_len] = '/'; + strcpy (concat_name + tmp_len + 1, wrapper); + } + else + { + concat_name = + XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, p, p_len); + concat_name[p_len] = '/'; + strcpy (concat_name + p_len + 1, wrapper); + } + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } + } + /* not found in PATH; assume curdir */ + } + /* Relative path | not found in path: prepend cwd */ + if (getcwd (tmp, LT_PATHMAX) == NULL) + lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", + nonnull (strerror (errno))); + tmp_len = strlen (tmp); + concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, tmp, tmp_len); + concat_name[tmp_len] = '/'; + strcpy (concat_name + tmp_len + 1, wrapper); + + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + return NULL; +} + +char * +chase_symlinks (const char *pathspec) +{ +#ifndef S_ISLNK + return xstrdup (pathspec); +#else + char buf[LT_PATHMAX]; + struct stat s; + char *tmp_pathspec = xstrdup (pathspec); + char *p; + int has_symlinks = 0; + while (strlen (tmp_pathspec) && !has_symlinks) + { + lt_debugprintf (__FILE__, __LINE__, + "checking path component for symlinks: %s\n", + tmp_pathspec); + if (lstat (tmp_pathspec, &s) == 0) + { + if (S_ISLNK (s.st_mode) != 0) + { + has_symlinks = 1; + break; + } + + /* search backwards for last DIR_SEPARATOR */ + p = tmp_pathspec + strlen (tmp_pathspec) - 1; + while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) + p--; + if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) + { + /* no more DIR_SEPARATORS left */ + break; + } + *p = '\0'; + } + else + { + lt_fatal (__FILE__, __LINE__, + "error accessing file \"%s\": %s", + tmp_pathspec, nonnull (strerror (errno))); + } + } + XFREE (tmp_pathspec); + + if (!has_symlinks) + { + return xstrdup (pathspec); + } + + tmp_pathspec = realpath (pathspec, buf); + if (tmp_pathspec == 0) + { + lt_fatal (__FILE__, __LINE__, + "could not follow symlinks for %s", pathspec); + } + return xstrdup (tmp_pathspec); +#endif +} + +char * +strendzap (char *str, const char *pat) +{ + size_t len, patlen; + + assert (str != NULL); + assert (pat != NULL); + + len = strlen (str); + patlen = strlen (pat); + + if (patlen <= len) + { + str += len - patlen; + if (strcmp (str, pat) == 0) + *str = '\0'; + } + return str; +} + +void +lt_debugprintf (const char *file, int line, const char *fmt, ...) +{ + va_list args; + if (lt_debug) + { + (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); + va_start (args, fmt); + (void) vfprintf (stderr, fmt, args); + va_end (args); + } +} + +static void +lt_error_core (int exit_status, const char *file, + int line, const char *mode, + const char *message, va_list ap) +{ + fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); + vfprintf (stderr, message, ap); + fprintf (stderr, ".\n"); + + if (exit_status >= 0) + exit (exit_status); +} + +void +lt_fatal (const char *file, int line, const char *message, ...) +{ + va_list ap; + va_start (ap, message); + lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); + va_end (ap); +} + +static const char * +nonnull (const char *s) +{ + return s ? s : "(null)"; +} + +static const char * +nonempty (const char *s) +{ + return (s && !*s) ? "(empty)" : nonnull (s); +} + +void +lt_setenv (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_setenv) setting '%s' to '%s'\n", + nonnull (name), nonnull (value)); + { +#ifdef HAVE_SETENV + /* always make a copy, for consistency with !HAVE_SETENV */ + char *str = xstrdup (value); + setenv (name, str, 1); +#else + int len = strlen (name) + 1 + strlen (value) + 1; + char *str = XMALLOC (char, len); + sprintf (str, "%s=%s", name, value); + if (putenv (str) != EXIT_SUCCESS) + { + XFREE (str); + } +#endif + } +} + +char * +lt_extend_str (const char *orig_value, const char *add, int to_end) +{ + char *new_value; + if (orig_value && *orig_value) + { + int orig_value_len = strlen (orig_value); + int add_len = strlen (add); + new_value = XMALLOC (char, add_len + orig_value_len + 1); + if (to_end) + { + strcpy (new_value, orig_value); + strcpy (new_value + orig_value_len, add); + } + else + { + strcpy (new_value, add); + strcpy (new_value + add_len, orig_value); + } + } + else + { + new_value = xstrdup (add); + } + return new_value; +} + +void +lt_update_exe_path (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", + nonnull (name), nonnull (value)); + + if (name && *name && value && *value) + { + char *new_value = lt_extend_str (getenv (name), value, 0); + /* some systems can't cope with a ':'-terminated path #' */ + int len = strlen (new_value); + while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1])) + { + new_value[len-1] = '\0'; + } + lt_setenv (name, new_value); + XFREE (new_value); + } +} + +void +lt_update_lib_path (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", + nonnull (name), nonnull (value)); + + if (name && *name && value && *value) + { + char *new_value = lt_extend_str (getenv (name), value, 0); + lt_setenv (name, new_value); + XFREE (new_value); + } +} + +EOF + case $host_os in + mingw*) + cat <<"EOF" + +/* Prepares an argument vector before calling spawn(). + Note that spawn() does not by itself call the command interpreter + (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : + ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + GetVersionEx(&v); + v.dwPlatformId == VER_PLATFORM_WIN32_NT; + }) ? "cmd.exe" : "command.com"). + Instead it simply concatenates the arguments, separated by ' ', and calls + CreateProcess(). We must quote the arguments since Win32 CreateProcess() + interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a + special way: + - Space and tab are interpreted as delimiters. They are not treated as + delimiters if they are surrounded by double quotes: "...". + - Unescaped double quotes are removed from the input. Their only effect is + that within double quotes, space and tab are treated like normal + characters. + - Backslashes not followed by double quotes are not special. + - But 2*n+1 backslashes followed by a double quote become + n backslashes followed by a double quote (n >= 0): + \" -> " + \\\" -> \" + \\\\\" -> \\" + */ +#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" +#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" +char ** +prepare_spawn (char **argv) +{ + size_t argc; + char **new_argv; + size_t i; + + /* Count number of arguments. */ + for (argc = 0; argv[argc] != NULL; argc++) + ; + + /* Allocate new argument vector. */ + new_argv = XMALLOC (char *, argc + 1); + + /* Put quoted arguments into the new argument vector. */ + for (i = 0; i < argc; i++) + { + const char *string = argv[i]; + + if (string[0] == '\0') + new_argv[i] = xstrdup ("\"\""); + else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) + { + int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); + size_t length; + unsigned int backslashes; + const char *s; + char *quoted_string; + char *p; + + length = 0; + backslashes = 0; + if (quote_around) + length++; + for (s = string; *s != '\0'; s++) + { + char c = *s; + if (c == '"') + length += backslashes + 1; + length++; + if (c == '\\') + backslashes++; + else + backslashes = 0; + } + if (quote_around) + length += backslashes + 1; + + quoted_string = XMALLOC (char, length + 1); + + p = quoted_string; + backslashes = 0; + if (quote_around) + *p++ = '"'; + for (s = string; *s != '\0'; s++) + { + char c = *s; + if (c == '"') + { + unsigned int j; + for (j = backslashes + 1; j > 0; j--) + *p++ = '\\'; + } + *p++ = c; + if (c == '\\') + backslashes++; + else + backslashes = 0; + } + if (quote_around) + { + unsigned int j; + for (j = backslashes; j > 0; j--) + *p++ = '\\'; + *p++ = '"'; + } + *p = '\0'; + + new_argv[i] = quoted_string; + } + else + new_argv[i] = (char *) string; + } + new_argv[argc] = NULL; + + return new_argv; +} +EOF + ;; + esac + + cat <<"EOF" +void lt_dump_script (FILE* f) +{ +EOF + func_emit_wrapper yes | + $SED -n -e ' +s/^\(.\{79\}\)\(..*\)/\1\ +\2/ +h +s/\([\\"]\)/\\\1/g +s/$/\\n/ +s/\([^\n]*\).*/ fputs ("\1", f);/p +g +D' + cat <<"EOF" +} +EOF +} +# end: func_emit_cwrapperexe_src + +# func_win32_import_lib_p ARG +# True if ARG is an import lib, as indicated by $file_magic_cmd +func_win32_import_lib_p () +{ + $opt_debug + case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in + *import*) : ;; + *) false ;; + esac +} + +# func_mode_link arg... +func_mode_link () +{ + $opt_debug + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + # It is impossible to link a dll without this setting, and + # we shouldn't force the makefile maintainer to figure out + # which system we are compiling for in order to pass an extra + # flag for every libtool invocation. + # allow_undefined=no + + # FIXME: Unfortunately, there are problems with the above when trying + # to make a dll which has undefined symbols, in which case not + # even a static library is built. For now, we need to specify + # -no-undefined on the libtool link line when we can be certain + # that all symbols are satisfied, otherwise we get a static library. + allow_undefined=yes + ;; + *) + allow_undefined=yes + ;; + esac + libtool_args=$nonopt + base_compile="$nonopt $@" + compile_command=$nonopt + finalize_command=$nonopt + + compile_rpath= + finalize_rpath= + compile_shlibpath= + finalize_shlibpath= + convenience= + old_convenience= + deplibs= + old_deplibs= + compiler_flags= + linker_flags= + dllsearchpath= + lib_search_path=`pwd` + inst_prefix_dir= + new_inherited_linker_flags= + + avoid_version=no + bindir= + dlfiles= + dlprefiles= + dlself=no + export_dynamic=no + export_symbols= + export_symbols_regex= + generated= + libobjs= + ltlibs= + module=no + no_install=no + objs= + non_pic_objects= + precious_files_regex= + prefer_static_libs=no + preload=no + prev= + prevarg= + release= + rpath= + xrpath= + perm_rpath= + temp_rpath= + thread_safe=no + vinfo= + vinfo_number=no + weak_libs= + single_module="${wl}-single_module" + func_infer_tag $base_compile + + # We need to know -static, to get the right output filenames. + for arg + do + case $arg in + -shared) + test "$build_libtool_libs" != yes && \ + func_fatal_configuration "can not build a shared library" + build_old_libs=no + break + ;; + -all-static | -static | -static-libtool-libs) + case $arg in + -all-static) + if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then + func_warning "complete static linking is impossible in this configuration" + fi + if test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=yes + ;; + -static) + if test -z "$pic_flag" && test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=built + ;; + -static-libtool-libs) + if test -z "$pic_flag" && test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=yes + ;; + esac + build_libtool_libs=no + build_old_libs=yes + break + ;; + esac + done + + # See if our shared archives depend on static archives. + test -n "$old_archive_from_new_cmds" && build_old_libs=yes + + # Go through the arguments, transforming them on the way. + while test "$#" -gt 0; do + arg="$1" + shift + func_quote_for_eval "$arg" + qarg=$func_quote_for_eval_unquoted_result + func_append libtool_args " $func_quote_for_eval_result" + + # If the previous option needs an argument, assign it. + if test -n "$prev"; then + case $prev in + output) + func_append compile_command " @OUTPUT@" + func_append finalize_command " @OUTPUT@" + ;; + esac + + case $prev in + bindir) + bindir="$arg" + prev= + continue + ;; + dlfiles|dlprefiles) + if test "$preload" = no; then + # Add the symbol object into the linking commands. + func_append compile_command " @SYMFILE@" + func_append finalize_command " @SYMFILE@" + preload=yes + fi + case $arg in + *.la | *.lo) ;; # We handle these cases below. + force) + if test "$dlself" = no; then + dlself=needless + export_dynamic=yes + fi + prev= + continue + ;; + self) + if test "$prev" = dlprefiles; then + dlself=yes + elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then + dlself=yes + else + dlself=needless + export_dynamic=yes + fi + prev= + continue + ;; + *) + if test "$prev" = dlfiles; then + func_append dlfiles " $arg" + else + func_append dlprefiles " $arg" + fi + prev= + continue + ;; + esac + ;; + expsyms) + export_symbols="$arg" + test -f "$arg" \ + || func_fatal_error "symbol file \`$arg' does not exist" + prev= + continue + ;; + expsyms_regex) + export_symbols_regex="$arg" + prev= + continue + ;; + framework) + case $host in + *-*-darwin*) + case "$deplibs " in + *" $qarg.ltframework "*) ;; + *) func_append deplibs " $qarg.ltframework" # this is fixed later + ;; + esac + ;; + esac + prev= + continue + ;; + inst_prefix) + inst_prefix_dir="$arg" + prev= + continue + ;; + objectlist) + if test -f "$arg"; then + save_arg=$arg + moreargs= + for fil in `cat "$save_arg"` + do +# func_append moreargs " $fil" + arg=$fil + # A libtool-controlled object. + + # Check to see that this really is a libtool object. + if func_lalib_unsafe_p "$arg"; then + pic_object= + non_pic_object= + + # Read the .lo file + func_source "$arg" + + if test -z "$pic_object" || + test -z "$non_pic_object" || + test "$pic_object" = none && + test "$non_pic_object" = none; then + func_fatal_error "cannot find name of object for \`$arg'" + fi + + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir="$func_dirname_result" + + if test "$pic_object" != none; then + # Prepend the subdirectory the object is found in. + pic_object="$xdir$pic_object" + + if test "$prev" = dlfiles; then + if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then + func_append dlfiles " $pic_object" + prev= + continue + else + # If libtool objects are unsupported, then we need to preload. + prev=dlprefiles + fi + fi + + # CHECK ME: I think I busted this. -Ossama + if test "$prev" = dlprefiles; then + # Preload the old-style object. + func_append dlprefiles " $pic_object" + prev= + fi + + # A PIC object. + func_append libobjs " $pic_object" + arg="$pic_object" + fi + + # Non-PIC object. + if test "$non_pic_object" != none; then + # Prepend the subdirectory the object is found in. + non_pic_object="$xdir$non_pic_object" + + # A standard non-PIC object + func_append non_pic_objects " $non_pic_object" + if test -z "$pic_object" || test "$pic_object" = none ; then + arg="$non_pic_object" + fi + else + # If the PIC object exists, use it instead. + # $xdir was prepended to $pic_object above. + non_pic_object="$pic_object" + func_append non_pic_objects " $non_pic_object" + fi + else + # Only an error if not doing a dry-run. + if $opt_dry_run; then + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir="$func_dirname_result" + + func_lo2o "$arg" + pic_object=$xdir$objdir/$func_lo2o_result + non_pic_object=$xdir$func_lo2o_result + func_append libobjs " $pic_object" + func_append non_pic_objects " $non_pic_object" + else + func_fatal_error "\`$arg' is not a valid libtool object" + fi + fi + done + else + func_fatal_error "link input file \`$arg' does not exist" + fi + arg=$save_arg + prev= + continue + ;; + precious_regex) + precious_files_regex="$arg" + prev= + continue + ;; + release) + release="-$arg" + prev= + continue + ;; + rpath | xrpath) + # We need an absolute path. + case $arg in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + func_fatal_error "only absolute run-paths are allowed" + ;; + esac + if test "$prev" = rpath; then + case "$rpath " in + *" $arg "*) ;; + *) func_append rpath " $arg" ;; + esac + else + case "$xrpath " in + *" $arg "*) ;; + *) func_append xrpath " $arg" ;; + esac + fi + prev= + continue + ;; + shrext) + shrext_cmds="$arg" + prev= + continue + ;; + weak) + func_append weak_libs " $arg" + prev= + continue + ;; + xcclinker) + func_append linker_flags " $qarg" + func_append compiler_flags " $qarg" + prev= + func_append compile_command " $qarg" + func_append finalize_command " $qarg" + continue + ;; + xcompiler) + func_append compiler_flags " $qarg" + prev= + func_append compile_command " $qarg" + func_append finalize_command " $qarg" + continue + ;; + xlinker) + func_append linker_flags " $qarg" + func_append compiler_flags " $wl$qarg" + prev= + func_append compile_command " $wl$qarg" + func_append finalize_command " $wl$qarg" + continue + ;; + *) + eval "$prev=\"\$arg\"" + prev= + continue + ;; + esac + fi # test -n "$prev" + + prevarg="$arg" + + case $arg in + -all-static) + if test -n "$link_static_flag"; then + # See comment for -static flag below, for more details. + func_append compile_command " $link_static_flag" + func_append finalize_command " $link_static_flag" + fi + continue + ;; + + -allow-undefined) + # FIXME: remove this flag sometime in the future. + func_fatal_error "\`-allow-undefined' must not be used because it is the default" + ;; + + -avoid-version) + avoid_version=yes + continue + ;; + + -bindir) + prev=bindir + continue + ;; + + -dlopen) + prev=dlfiles + continue + ;; + + -dlpreopen) + prev=dlprefiles + continue + ;; + + -export-dynamic) + export_dynamic=yes + continue + ;; + + -export-symbols | -export-symbols-regex) + if test -n "$export_symbols" || test -n "$export_symbols_regex"; then + func_fatal_error "more than one -exported-symbols argument is not allowed" + fi + if test "X$arg" = "X-export-symbols"; then + prev=expsyms + else + prev=expsyms_regex + fi + continue + ;; + + -framework) + prev=framework + continue + ;; + + -inst-prefix-dir) + prev=inst_prefix + continue + ;; + + # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:* + # so, if we see these flags be careful not to treat them like -L + -L[A-Z][A-Z]*:*) + case $with_gcc/$host in + no/*-*-irix* | /*-*-irix*) + func_append compile_command " $arg" + func_append finalize_command " $arg" + ;; + esac + continue + ;; + + -L*) + func_stripname "-L" '' "$arg" + if test -z "$func_stripname_result"; then + if test "$#" -gt 0; then + func_fatal_error "require no space between \`-L' and \`$1'" + else + func_fatal_error "need path for \`-L' option" + fi + fi + func_resolve_sysroot "$func_stripname_result" + dir=$func_resolve_sysroot_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + absdir=`cd "$dir" && pwd` + test -z "$absdir" && \ + func_fatal_error "cannot determine absolute directory name of \`$dir'" + dir="$absdir" + ;; + esac + case "$deplibs " in + *" -L$dir "* | *" $arg "*) + # Will only happen for absolute or sysroot arguments + ;; + *) + # Preserve sysroot, but never include relative directories + case $dir in + [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;; + *) func_append deplibs " -L$dir" ;; + esac + func_append lib_search_path " $dir" + ;; + esac + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'` + case :$dllsearchpath: in + *":$dir:"*) ;; + ::) dllsearchpath=$dir;; + *) func_append dllsearchpath ":$dir";; + esac + case :$dllsearchpath: in + *":$testbindir:"*) ;; + ::) dllsearchpath=$testbindir;; + *) func_append dllsearchpath ":$testbindir";; + esac + ;; + esac + continue + ;; + + -l*) + if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*) + # These systems don't actually have a C or math library (as such) + continue + ;; + *-*-os2*) + # These systems don't actually have a C library (as such) + test "X$arg" = "X-lc" && continue + ;; + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) + # Do not include libc due to us having libc/libc_r. + test "X$arg" = "X-lc" && continue + ;; + *-*-rhapsody* | *-*-darwin1.[012]) + # Rhapsody C and math libraries are in the System framework + func_append deplibs " System.ltframework" + continue + ;; + *-*-sco3.2v5* | *-*-sco5v6*) + # Causes problems with __ctype + test "X$arg" = "X-lc" && continue + ;; + *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) + # Compiler inserts libc in the correct place for threads to work + test "X$arg" = "X-lc" && continue + ;; + esac + elif test "X$arg" = "X-lc_r"; then + case $host in + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) + # Do not include libc_r directly, use -pthread flag. + continue + ;; + esac + fi + func_append deplibs " $arg" + continue + ;; + + -module) + module=yes + continue + ;; + + # Tru64 UNIX uses -model [arg] to determine the layout of C++ + # classes, name mangling, and exception handling. + # Darwin uses the -arch flag to determine output architecture. + -model|-arch|-isysroot|--sysroot) + func_append compiler_flags " $arg" + func_append compile_command " $arg" + func_append finalize_command " $arg" + prev=xcompiler + continue + ;; + + -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ + |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) + func_append compiler_flags " $arg" + func_append compile_command " $arg" + func_append finalize_command " $arg" + case "$new_inherited_linker_flags " in + *" $arg "*) ;; + * ) func_append new_inherited_linker_flags " $arg" ;; + esac + continue + ;; + + -multi_module) + single_module="${wl}-multi_module" + continue + ;; + + -no-fast-install) + fast_install=no + continue + ;; + + -no-install) + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*) + # The PATH hackery in wrapper scripts is required on Windows + # and Darwin in order for the loader to find any dlls it needs. + func_warning "\`-no-install' is ignored for $host" + func_warning "assuming \`-no-fast-install' instead" + fast_install=no + ;; + *) no_install=yes ;; + esac + continue + ;; + + -no-undefined) + allow_undefined=no + continue + ;; + + -objectlist) + prev=objectlist + continue + ;; + + -o) prev=output ;; + + -precious-files-regex) + prev=precious_regex + continue + ;; + + -release) + prev=release + continue + ;; + + -rpath) + prev=rpath + continue + ;; + + -R) + prev=xrpath + continue + ;; + + -R*) + func_stripname '-R' '' "$arg" + dir=$func_stripname_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + =*) + func_stripname '=' '' "$dir" + dir=$lt_sysroot$func_stripname_result + ;; + *) + func_fatal_error "only absolute run-paths are allowed" + ;; + esac + case "$xrpath " in + *" $dir "*) ;; + *) func_append xrpath " $dir" ;; + esac + continue + ;; + + -shared) + # The effects of -shared are defined in a previous loop. + continue + ;; + + -shrext) + prev=shrext + continue + ;; + + -static | -static-libtool-libs) + # The effects of -static are defined in a previous loop. + # We used to do the same as -all-static on platforms that + # didn't have a PIC flag, but the assumption that the effects + # would be equivalent was wrong. It would break on at least + # Digital Unix and AIX. + continue + ;; + + -thread-safe) + thread_safe=yes + continue + ;; + + -version-info) + prev=vinfo + continue + ;; + + -version-number) + prev=vinfo + vinfo_number=yes + continue + ;; + + -weak) + prev=weak + continue + ;; + + -Wc,*) + func_stripname '-Wc,' '' "$arg" + args=$func_stripname_result + arg= + save_ifs="$IFS"; IFS=',' + for flag in $args; do + IFS="$save_ifs" + func_quote_for_eval "$flag" + func_append arg " $func_quote_for_eval_result" + func_append compiler_flags " $func_quote_for_eval_result" + done + IFS="$save_ifs" + func_stripname ' ' '' "$arg" + arg=$func_stripname_result + ;; + + -Wl,*) + func_stripname '-Wl,' '' "$arg" + args=$func_stripname_result + arg= + save_ifs="$IFS"; IFS=',' + for flag in $args; do + IFS="$save_ifs" + func_quote_for_eval "$flag" + func_append arg " $wl$func_quote_for_eval_result" + func_append compiler_flags " $wl$func_quote_for_eval_result" + func_append linker_flags " $func_quote_for_eval_result" + done + IFS="$save_ifs" + func_stripname ' ' '' "$arg" + arg=$func_stripname_result + ;; + + -Xcompiler) + prev=xcompiler + continue + ;; + + -Xlinker) + prev=xlinker + continue + ;; + + -XCClinker) + prev=xcclinker + continue + ;; + + # -msg_* for osf cc + -msg_*) + func_quote_for_eval "$arg" + arg="$func_quote_for_eval_result" + ;; + + # Flags to be passed through unchanged, with rationale: + # -64, -mips[0-9] enable 64-bit mode for the SGI compiler + # -r[0-9][0-9]* specify processor for the SGI compiler + # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler + # +DA*, +DD* enable 64-bit mode for the HP compiler + # -q* compiler args for the IBM compiler + # -m*, -t[45]*, -txscale* architecture-specific flags for GCC + # -F/path path to uninstalled frameworks, gcc on darwin + # -p, -pg, --coverage, -fprofile-* profiling flags for GCC + # @file GCC response files + # -tp=* Portland pgcc target processor selection + # --sysroot=* for sysroot support + # -O*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization + -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \ + -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \ + -O*|-flto*|-fwhopr*|-fuse-linker-plugin) + func_quote_for_eval "$arg" + arg="$func_quote_for_eval_result" + func_append compile_command " $arg" + func_append finalize_command " $arg" + func_append compiler_flags " $arg" + continue + ;; + + # Some other compiler flag. + -* | +*) + func_quote_for_eval "$arg" + arg="$func_quote_for_eval_result" + ;; + + *.$objext) + # A standard object. + func_append objs " $arg" + ;; + + *.lo) + # A libtool-controlled object. + + # Check to see that this really is a libtool object. + if func_lalib_unsafe_p "$arg"; then + pic_object= + non_pic_object= + + # Read the .lo file + func_source "$arg" + + if test -z "$pic_object" || + test -z "$non_pic_object" || + test "$pic_object" = none && + test "$non_pic_object" = none; then + func_fatal_error "cannot find name of object for \`$arg'" + fi + + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir="$func_dirname_result" + + if test "$pic_object" != none; then + # Prepend the subdirectory the object is found in. + pic_object="$xdir$pic_object" + + if test "$prev" = dlfiles; then + if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then + func_append dlfiles " $pic_object" + prev= + continue + else + # If libtool objects are unsupported, then we need to preload. + prev=dlprefiles + fi + fi + + # CHECK ME: I think I busted this. -Ossama + if test "$prev" = dlprefiles; then + # Preload the old-style object. + func_append dlprefiles " $pic_object" + prev= + fi + + # A PIC object. + func_append libobjs " $pic_object" + arg="$pic_object" + fi + + # Non-PIC object. + if test "$non_pic_object" != none; then + # Prepend the subdirectory the object is found in. + non_pic_object="$xdir$non_pic_object" + + # A standard non-PIC object + func_append non_pic_objects " $non_pic_object" + if test -z "$pic_object" || test "$pic_object" = none ; then + arg="$non_pic_object" + fi + else + # If the PIC object exists, use it instead. + # $xdir was prepended to $pic_object above. + non_pic_object="$pic_object" + func_append non_pic_objects " $non_pic_object" + fi + else + # Only an error if not doing a dry-run. + if $opt_dry_run; then + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir="$func_dirname_result" + + func_lo2o "$arg" + pic_object=$xdir$objdir/$func_lo2o_result + non_pic_object=$xdir$func_lo2o_result + func_append libobjs " $pic_object" + func_append non_pic_objects " $non_pic_object" + else + func_fatal_error "\`$arg' is not a valid libtool object" + fi + fi + ;; + + *.$libext) + # An archive. + func_append deplibs " $arg" + func_append old_deplibs " $arg" + continue + ;; + + *.la) + # A libtool-controlled library. + + func_resolve_sysroot "$arg" + if test "$prev" = dlfiles; then + # This library was specified with -dlopen. + func_append dlfiles " $func_resolve_sysroot_result" + prev= + elif test "$prev" = dlprefiles; then + # The library was specified with -dlpreopen. + func_append dlprefiles " $func_resolve_sysroot_result" + prev= + else + func_append deplibs " $func_resolve_sysroot_result" + fi + continue + ;; + + # Some other compiler argument. + *) + # Unknown arguments in both finalize_command and compile_command need + # to be aesthetically quoted because they are evaled later. + func_quote_for_eval "$arg" + arg="$func_quote_for_eval_result" + ;; + esac # arg + + # Now actually substitute the argument into the commands. + if test -n "$arg"; then + func_append compile_command " $arg" + func_append finalize_command " $arg" + fi + done # argument parsing loop + + test -n "$prev" && \ + func_fatal_help "the \`$prevarg' option requires an argument" + + if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then + eval arg=\"$export_dynamic_flag_spec\" + func_append compile_command " $arg" + func_append finalize_command " $arg" + fi + + oldlibs= + # calculate the name of the file, without its directory + func_basename "$output" + outputname="$func_basename_result" + libobjs_save="$libobjs" + + if test -n "$shlibpath_var"; then + # get the directories listed in $shlibpath_var + eval shlib_search_path=\`\$ECHO \"\${$shlibpath_var}\" \| \$SED \'s/:/ /g\'\` + else + shlib_search_path= + fi + eval sys_lib_search_path=\"$sys_lib_search_path_spec\" + eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\" + + func_dirname "$output" "/" "" + output_objdir="$func_dirname_result$objdir" + func_to_tool_file "$output_objdir/" + tool_output_objdir=$func_to_tool_file_result + # Create the object directory. + func_mkdir_p "$output_objdir" + + # Determine the type of output + case $output in + "") + func_fatal_help "you must specify an output file" + ;; + *.$libext) linkmode=oldlib ;; + *.lo | *.$objext) linkmode=obj ;; + *.la) linkmode=lib ;; + *) linkmode=prog ;; # Anything else should be a program. + esac + + specialdeplibs= + + libs= + # Find all interdependent deplibs by searching for libraries + # that are linked more than once (e.g. -la -lb -la) + for deplib in $deplibs; do + if $opt_preserve_dup_deps ; then + case "$libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append libs " $deplib" + done + + if test "$linkmode" = lib; then + libs="$predeps $libs $compiler_lib_search_path $postdeps" + + # Compute libraries that are listed more than once in $predeps + # $postdeps and mark them as special (i.e., whose duplicates are + # not to be eliminated). + pre_post_deps= + if $opt_duplicate_compiler_generated_deps; then + for pre_post_dep in $predeps $postdeps; do + case "$pre_post_deps " in + *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;; + esac + func_append pre_post_deps " $pre_post_dep" + done + fi + pre_post_deps= + fi + + deplibs= + newdependency_libs= + newlib_search_path= + need_relink=no # whether we're linking any uninstalled libtool libraries + notinst_deplibs= # not-installed libtool libraries + notinst_path= # paths that contain not-installed libtool libraries + + case $linkmode in + lib) + passes="conv dlpreopen link" + for file in $dlfiles $dlprefiles; do + case $file in + *.la) ;; + *) + func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file" + ;; + esac + done + ;; + prog) + compile_deplibs= + finalize_deplibs= + alldeplibs=no + newdlfiles= + newdlprefiles= + passes="conv scan dlopen dlpreopen link" + ;; + *) passes="conv" + ;; + esac + + for pass in $passes; do + # The preopen pass in lib mode reverses $deplibs; put it back here + # so that -L comes before libs that need it for instance... + if test "$linkmode,$pass" = "lib,link"; then + ## FIXME: Find the place where the list is rebuilt in the wrong + ## order, and fix it there properly + tmp_deplibs= + for deplib in $deplibs; do + tmp_deplibs="$deplib $tmp_deplibs" + done + deplibs="$tmp_deplibs" + fi + + if test "$linkmode,$pass" = "lib,link" || + test "$linkmode,$pass" = "prog,scan"; then + libs="$deplibs" + deplibs= + fi + if test "$linkmode" = prog; then + case $pass in + dlopen) libs="$dlfiles" ;; + dlpreopen) libs="$dlprefiles" ;; + link) + libs="$deplibs %DEPLIBS%" + test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs" + ;; + esac + fi + if test "$linkmode,$pass" = "lib,dlpreopen"; then + # Collect and forward deplibs of preopened libtool libs + for lib in $dlprefiles; do + # Ignore non-libtool-libs + dependency_libs= + func_resolve_sysroot "$lib" + case $lib in + *.la) func_source "$func_resolve_sysroot_result" ;; + esac + + # Collect preopened libtool deplibs, except any this library + # has declared as weak libs + for deplib in $dependency_libs; do + func_basename "$deplib" + deplib_base=$func_basename_result + case " $weak_libs " in + *" $deplib_base "*) ;; + *) func_append deplibs " $deplib" ;; + esac + done + done + libs="$dlprefiles" + fi + if test "$pass" = dlopen; then + # Collect dlpreopened libraries + save_deplibs="$deplibs" + deplibs= + fi + + for deplib in $libs; do + lib= + found=no + case $deplib in + -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ + |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) + if test "$linkmode,$pass" = "prog,link"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + func_append compiler_flags " $deplib" + if test "$linkmode" = lib ; then + case "$new_inherited_linker_flags " in + *" $deplib "*) ;; + * ) func_append new_inherited_linker_flags " $deplib" ;; + esac + fi + fi + continue + ;; + -l*) + if test "$linkmode" != lib && test "$linkmode" != prog; then + func_warning "\`-l' is ignored for archives/objects" + continue + fi + func_stripname '-l' '' "$deplib" + name=$func_stripname_result + if test "$linkmode" = lib; then + searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" + else + searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" + fi + for searchdir in $searchdirs; do + for search_ext in .la $std_shrext .so .a; do + # Search the libtool library + lib="$searchdir/lib${name}${search_ext}" + if test -f "$lib"; then + if test "$search_ext" = ".la"; then + found=yes + else + found=no + fi + break 2 + fi + done + done + if test "$found" != yes; then + # deplib doesn't seem to be a libtool library + if test "$linkmode,$pass" = "prog,link"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs" + fi + continue + else # deplib is a libtool library + # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, + # We need to do some special things here, and not later. + if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then + case " $predeps $postdeps " in + *" $deplib "*) + if func_lalib_p "$lib"; then + library_names= + old_library= + func_source "$lib" + for l in $old_library $library_names; do + ll="$l" + done + if test "X$ll" = "X$old_library" ; then # only static version available + found=no + func_dirname "$lib" "" "." + ladir="$func_dirname_result" + lib=$ladir/$old_library + if test "$linkmode,$pass" = "prog,link"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs" + fi + continue + fi + fi + ;; + *) ;; + esac + fi + fi + ;; # -l + *.ltframework) + if test "$linkmode,$pass" = "prog,link"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + if test "$linkmode" = lib ; then + case "$new_inherited_linker_flags " in + *" $deplib "*) ;; + * ) func_append new_inherited_linker_flags " $deplib" ;; + esac + fi + fi + continue + ;; + -L*) + case $linkmode in + lib) + deplibs="$deplib $deplibs" + test "$pass" = conv && continue + newdependency_libs="$deplib $newdependency_libs" + func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + prog) + if test "$pass" = conv; then + deplibs="$deplib $deplibs" + continue + fi + if test "$pass" = scan; then + deplibs="$deplib $deplibs" + else + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + fi + func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + *) + func_warning "\`-L' is ignored for archives/objects" + ;; + esac # linkmode + continue + ;; # -L + -R*) + if test "$pass" = link; then + func_stripname '-R' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + dir=$func_resolve_sysroot_result + # Make sure the xrpath contains only unique directories. + case "$xrpath " in + *" $dir "*) ;; + *) func_append xrpath " $dir" ;; + esac + fi + deplibs="$deplib $deplibs" + continue + ;; + *.la) + func_resolve_sysroot "$deplib" + lib=$func_resolve_sysroot_result + ;; + *.$libext) + if test "$pass" = conv; then + deplibs="$deplib $deplibs" + continue + fi + case $linkmode in + lib) + # Linking convenience modules into shared libraries is allowed, + # but linking other static libraries is non-portable. + case " $dlpreconveniencelibs " in + *" $deplib "*) ;; + *) + valid_a_lib=no + case $deplibs_check_method in + match_pattern*) + set dummy $deplibs_check_method; shift + match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` + if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ + | $EGREP "$match_pattern_regex" > /dev/null; then + valid_a_lib=yes + fi + ;; + pass_all) + valid_a_lib=yes + ;; + esac + if test "$valid_a_lib" != yes; then + echo + $ECHO "*** Warning: Trying to link with static lib archive $deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because the file extensions .$libext of this argument makes me believe" + echo "*** that it is just a static archive that I should not use here." + else + echo + $ECHO "*** Warning: Linking the shared library $output against the" + $ECHO "*** static library $deplib is not portable!" + deplibs="$deplib $deplibs" + fi + ;; + esac + continue + ;; + prog) + if test "$pass" != link; then + deplibs="$deplib $deplibs" + else + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + fi + continue + ;; + esac # linkmode + ;; # *.$libext + *.lo | *.$objext) + if test "$pass" = conv; then + deplibs="$deplib $deplibs" + elif test "$linkmode" = prog; then + if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then + # If there is no dlopen support or we're linking statically, + # we need to preload. + func_append newdlprefiles " $deplib" + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + func_append newdlfiles " $deplib" + fi + fi + continue + ;; + %DEPLIBS%) + alldeplibs=yes + continue + ;; + esac # case $deplib + + if test "$found" = yes || test -f "$lib"; then : + else + func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'" + fi + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$lib" \ + || func_fatal_error "\`$lib' is not a valid libtool archive" + + func_dirname "$lib" "" "." + ladir="$func_dirname_result" + + dlname= + dlopen= + dlpreopen= + libdir= + library_names= + old_library= + inherited_linker_flags= + # If the library was installed with an old release of libtool, + # it will not redefine variables installed, or shouldnotlink + installed=yes + shouldnotlink=no + avoidtemprpath= + + + # Read the .la file + func_source "$lib" + + # Convert "-framework foo" to "foo.ltframework" + if test -n "$inherited_linker_flags"; then + tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` + for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do + case " $new_inherited_linker_flags " in + *" $tmp_inherited_linker_flag "*) ;; + *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; + esac + done + fi + dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + if test "$linkmode,$pass" = "lib,link" || + test "$linkmode,$pass" = "prog,scan" || + { test "$linkmode" != prog && test "$linkmode" != lib; }; then + test -n "$dlopen" && func_append dlfiles " $dlopen" + test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" + fi + + if test "$pass" = conv; then + # Only check for convenience libraries + deplibs="$lib $deplibs" + if test -z "$libdir"; then + if test -z "$old_library"; then + func_fatal_error "cannot find name of link library for \`$lib'" + fi + # It is a libtool convenience library, so add in its objects. + func_append convenience " $ladir/$objdir/$old_library" + func_append old_convenience " $ladir/$objdir/$old_library" + tmp_libs= + for deplib in $dependency_libs; do + deplibs="$deplib $deplibs" + if $opt_preserve_dup_deps ; then + case "$tmp_libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append tmp_libs " $deplib" + done + elif test "$linkmode" != prog && test "$linkmode" != lib; then + func_fatal_error "\`$lib' is not a convenience library" + fi + continue + fi # $pass = conv + + + # Get the name of the library we link against. + linklib= + if test -n "$old_library" && + { test "$prefer_static_libs" = yes || + test "$prefer_static_libs,$installed" = "built,no"; }; then + linklib=$old_library + else + for l in $old_library $library_names; do + linklib="$l" + done + fi + if test -z "$linklib"; then + func_fatal_error "cannot find name of link library for \`$lib'" + fi + + # This library was specified with -dlopen. + if test "$pass" = dlopen; then + if test -z "$libdir"; then + func_fatal_error "cannot -dlopen a convenience library: \`$lib'" + fi + if test -z "$dlname" || + test "$dlopen_support" != yes || + test "$build_libtool_libs" = no; then + # If there is no dlname, no dlopen support or we're linking + # statically, we need to preload. We also need to preload any + # dependent libraries so libltdl's deplib preloader doesn't + # bomb out in the load deplibs phase. + func_append dlprefiles " $lib $dependency_libs" + else + func_append newdlfiles " $lib" + fi + continue + fi # $pass = dlopen + + # We need an absolute path. + case $ladir in + [\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;; + *) + abs_ladir=`cd "$ladir" && pwd` + if test -z "$abs_ladir"; then + func_warning "cannot determine absolute directory name of \`$ladir'" + func_warning "passing it literally to the linker, although it might fail" + abs_ladir="$ladir" + fi + ;; + esac + func_basename "$lib" + laname="$func_basename_result" + + # Find the relevant object directory and library name. + if test "X$installed" = Xyes; then + if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then + func_warning "library \`$lib' was moved." + dir="$ladir" + absdir="$abs_ladir" + libdir="$abs_ladir" + else + dir="$lt_sysroot$libdir" + absdir="$lt_sysroot$libdir" + fi + test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes + else + if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then + dir="$ladir" + absdir="$abs_ladir" + # Remove this search path later + func_append notinst_path " $abs_ladir" + else + dir="$ladir/$objdir" + absdir="$abs_ladir/$objdir" + # Remove this search path later + func_append notinst_path " $abs_ladir" + fi + fi # $installed = yes + func_stripname 'lib' '.la' "$laname" + name=$func_stripname_result + + # This library was specified with -dlpreopen. + if test "$pass" = dlpreopen; then + if test -z "$libdir" && test "$linkmode" = prog; then + func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'" + fi + case "$host" in + # special handling for platforms with PE-DLLs. + *cygwin* | *mingw* | *cegcc* ) + # Linker will automatically link against shared library if both + # static and shared are present. Therefore, ensure we extract + # symbols from the import library if a shared library is present + # (otherwise, the dlopen module name will be incorrect). We do + # this by putting the import library name into $newdlprefiles. + # We recover the dlopen module name by 'saving' the la file + # name in a special purpose variable, and (later) extracting the + # dlname from the la file. + if test -n "$dlname"; then + func_tr_sh "$dir/$linklib" + eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" + func_append newdlprefiles " $dir/$linklib" + else + func_append newdlprefiles " $dir/$old_library" + # Keep a list of preopened convenience libraries to check + # that they are being used correctly in the link pass. + test -z "$libdir" && \ + func_append dlpreconveniencelibs " $dir/$old_library" + fi + ;; + * ) + # Prefer using a static library (so that no silly _DYNAMIC symbols + # are required to link). + if test -n "$old_library"; then + func_append newdlprefiles " $dir/$old_library" + # Keep a list of preopened convenience libraries to check + # that they are being used correctly in the link pass. + test -z "$libdir" && \ + func_append dlpreconveniencelibs " $dir/$old_library" + # Otherwise, use the dlname, so that lt_dlopen finds it. + elif test -n "$dlname"; then + func_append newdlprefiles " $dir/$dlname" + else + func_append newdlprefiles " $dir/$linklib" + fi + ;; + esac + fi # $pass = dlpreopen + + if test -z "$libdir"; then + # Link the convenience library + if test "$linkmode" = lib; then + deplibs="$dir/$old_library $deplibs" + elif test "$linkmode,$pass" = "prog,link"; then + compile_deplibs="$dir/$old_library $compile_deplibs" + finalize_deplibs="$dir/$old_library $finalize_deplibs" + else + deplibs="$lib $deplibs" # used for prog,scan pass + fi + continue + fi + + + if test "$linkmode" = prog && test "$pass" != link; then + func_append newlib_search_path " $ladir" + deplibs="$lib $deplibs" + + linkalldeplibs=no + if test "$link_all_deplibs" != no || test -z "$library_names" || + test "$build_libtool_libs" = no; then + linkalldeplibs=yes + fi + + tmp_libs= + for deplib in $dependency_libs; do + case $deplib in + -L*) func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + esac + # Need to link against all dependency_libs? + if test "$linkalldeplibs" = yes; then + deplibs="$deplib $deplibs" + else + # Need to hardcode shared library paths + # or/and link against static libraries + newdependency_libs="$deplib $newdependency_libs" + fi + if $opt_preserve_dup_deps ; then + case "$tmp_libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append tmp_libs " $deplib" + done # for deplib + continue + fi # $linkmode = prog... + + if test "$linkmode,$pass" = "prog,link"; then + if test -n "$library_names" && + { { test "$prefer_static_libs" = no || + test "$prefer_static_libs,$installed" = "built,yes"; } || + test -z "$old_library"; }; then + # We need to hardcode the library path + if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then + # Make sure the rpath contains only unique directories. + case "$temp_rpath:" in + *"$absdir:"*) ;; + *) func_append temp_rpath "$absdir:" ;; + esac + fi + + # Hardcode the library path. + # Skip directories that are in the system default run-time + # search path. + case " $sys_lib_dlsearch_path " in + *" $absdir "*) ;; + *) + case "$compile_rpath " in + *" $absdir "*) ;; + *) func_append compile_rpath " $absdir" ;; + esac + ;; + esac + case " $sys_lib_dlsearch_path " in + *" $libdir "*) ;; + *) + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + ;; + esac + fi # $linkmode,$pass = prog,link... + + if test "$alldeplibs" = yes && + { test "$deplibs_check_method" = pass_all || + { test "$build_libtool_libs" = yes && + test -n "$library_names"; }; }; then + # We only need to search for static libraries + continue + fi + fi + + link_static=no # Whether the deplib will be linked statically + use_static_libs=$prefer_static_libs + if test "$use_static_libs" = built && test "$installed" = yes; then + use_static_libs=no + fi + if test -n "$library_names" && + { test "$use_static_libs" = no || test -z "$old_library"; }; then + case $host in + *cygwin* | *mingw* | *cegcc*) + # No point in relinking DLLs because paths are not encoded + func_append notinst_deplibs " $lib" + need_relink=no + ;; + *) + if test "$installed" = no; then + func_append notinst_deplibs " $lib" + need_relink=yes + fi + ;; + esac + # This is a shared library + + # Warn about portability, can't link against -module's on some + # systems (darwin). Don't bleat about dlopened modules though! + dlopenmodule="" + for dlpremoduletest in $dlprefiles; do + if test "X$dlpremoduletest" = "X$lib"; then + dlopenmodule="$dlpremoduletest" + break + fi + done + if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then + echo + if test "$linkmode" = prog; then + $ECHO "*** Warning: Linking the executable $output against the loadable module" + else + $ECHO "*** Warning: Linking the shared library $output against the loadable module" + fi + $ECHO "*** $linklib is not portable!" + fi + if test "$linkmode" = lib && + test "$hardcode_into_libs" = yes; then + # Hardcode the library path. + # Skip directories that are in the system default run-time + # search path. + case " $sys_lib_dlsearch_path " in + *" $absdir "*) ;; + *) + case "$compile_rpath " in + *" $absdir "*) ;; + *) func_append compile_rpath " $absdir" ;; + esac + ;; + esac + case " $sys_lib_dlsearch_path " in + *" $libdir "*) ;; + *) + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + ;; + esac + fi + + if test -n "$old_archive_from_expsyms_cmds"; then + # figure out the soname + set dummy $library_names + shift + realname="$1" + shift + libname=`eval "\\$ECHO \"$libname_spec\""` + # use dlname if we got it. it's perfectly good, no? + if test -n "$dlname"; then + soname="$dlname" + elif test -n "$soname_spec"; then + # bleh windows + case $host in + *cygwin* | mingw* | *cegcc*) + func_arith $current - $age + major=$func_arith_result + versuffix="-$major" + ;; + esac + eval soname=\"$soname_spec\" + else + soname="$realname" + fi + + # Make a new name for the extract_expsyms_cmds to use + soroot="$soname" + func_basename "$soroot" + soname="$func_basename_result" + func_stripname 'lib' '.dll' "$soname" + newlib=libimp-$func_stripname_result.a + + # If the library has no export list, then create one now + if test -f "$output_objdir/$soname-def"; then : + else + func_verbose "extracting exported symbol list from \`$soname'" + func_execute_cmds "$extract_expsyms_cmds" 'exit $?' + fi + + # Create $newlib + if test -f "$output_objdir/$newlib"; then :; else + func_verbose "generating import library for \`$soname'" + func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' + fi + # make sure the library variables are pointing to the new library + dir=$output_objdir + linklib=$newlib + fi # test -n "$old_archive_from_expsyms_cmds" + + if test "$linkmode" = prog || test "$opt_mode" != relink; then + add_shlibpath= + add_dir= + add= + lib_linked=yes + case $hardcode_action in + immediate | unsupported) + if test "$hardcode_direct" = no; then + add="$dir/$linklib" + case $host in + *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;; + *-*-sysv4*uw2*) add_dir="-L$dir" ;; + *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ + *-*-unixware7*) add_dir="-L$dir" ;; + *-*-darwin* ) + # if the lib is a (non-dlopened) module then we can not + # link against it, someone is ignoring the earlier warnings + if /usr/bin/file -L $add 2> /dev/null | + $GREP ": [^:]* bundle" >/dev/null ; then + if test "X$dlopenmodule" != "X$lib"; then + $ECHO "*** Warning: lib $linklib is a module, not a shared library" + if test -z "$old_library" ; then + echo + echo "*** And there doesn't seem to be a static archive available" + echo "*** The link will probably fail, sorry" + else + add="$dir/$old_library" + fi + elif test -n "$old_library"; then + add="$dir/$old_library" + fi + fi + esac + elif test "$hardcode_minus_L" = no; then + case $host in + *-*-sunos*) add_shlibpath="$dir" ;; + esac + add_dir="-L$dir" + add="-l$name" + elif test "$hardcode_shlibpath_var" = no; then + add_shlibpath="$dir" + add="-l$name" + else + lib_linked=no + fi + ;; + relink) + if test "$hardcode_direct" = yes && + test "$hardcode_direct_absolute" = no; then + add="$dir/$linklib" + elif test "$hardcode_minus_L" = yes; then + add_dir="-L$absdir" + # Try looking first in the location we're being installed to. + if test -n "$inst_prefix_dir"; then + case $libdir in + [\\/]*) + func_append add_dir " -L$inst_prefix_dir$libdir" + ;; + esac + fi + add="-l$name" + elif test "$hardcode_shlibpath_var" = yes; then + add_shlibpath="$dir" + add="-l$name" + else + lib_linked=no + fi + ;; + *) lib_linked=no ;; + esac + + if test "$lib_linked" != yes; then + func_fatal_configuration "unsupported hardcode properties" + fi + + if test -n "$add_shlibpath"; then + case :$compile_shlibpath: in + *":$add_shlibpath:"*) ;; + *) func_append compile_shlibpath "$add_shlibpath:" ;; + esac + fi + if test "$linkmode" = prog; then + test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" + test -n "$add" && compile_deplibs="$add $compile_deplibs" + else + test -n "$add_dir" && deplibs="$add_dir $deplibs" + test -n "$add" && deplibs="$add $deplibs" + if test "$hardcode_direct" != yes && + test "$hardcode_minus_L" != yes && + test "$hardcode_shlibpath_var" = yes; then + case :$finalize_shlibpath: in + *":$libdir:"*) ;; + *) func_append finalize_shlibpath "$libdir:" ;; + esac + fi + fi + fi + + if test "$linkmode" = prog || test "$opt_mode" = relink; then + add_shlibpath= + add_dir= + add= + # Finalize command for both is simple: just hardcode it. + if test "$hardcode_direct" = yes && + test "$hardcode_direct_absolute" = no; then + add="$libdir/$linklib" + elif test "$hardcode_minus_L" = yes; then + add_dir="-L$libdir" + add="-l$name" + elif test "$hardcode_shlibpath_var" = yes; then + case :$finalize_shlibpath: in + *":$libdir:"*) ;; + *) func_append finalize_shlibpath "$libdir:" ;; + esac + add="-l$name" + elif test "$hardcode_automatic" = yes; then + if test -n "$inst_prefix_dir" && + test -f "$inst_prefix_dir$libdir/$linklib" ; then + add="$inst_prefix_dir$libdir/$linklib" + else + add="$libdir/$linklib" + fi + else + # We cannot seem to hardcode it, guess we'll fake it. + add_dir="-L$libdir" + # Try looking first in the location we're being installed to. + if test -n "$inst_prefix_dir"; then + case $libdir in + [\\/]*) + func_append add_dir " -L$inst_prefix_dir$libdir" + ;; + esac + fi + add="-l$name" + fi + + if test "$linkmode" = prog; then + test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" + test -n "$add" && finalize_deplibs="$add $finalize_deplibs" + else + test -n "$add_dir" && deplibs="$add_dir $deplibs" + test -n "$add" && deplibs="$add $deplibs" + fi + fi + elif test "$linkmode" = prog; then + # Here we assume that one of hardcode_direct or hardcode_minus_L + # is not unsupported. This is valid on all known static and + # shared platforms. + if test "$hardcode_direct" != unsupported; then + test -n "$old_library" && linklib="$old_library" + compile_deplibs="$dir/$linklib $compile_deplibs" + finalize_deplibs="$dir/$linklib $finalize_deplibs" + else + compile_deplibs="-l$name -L$dir $compile_deplibs" + finalize_deplibs="-l$name -L$dir $finalize_deplibs" + fi + elif test "$build_libtool_libs" = yes; then + # Not a shared library + if test "$deplibs_check_method" != pass_all; then + # We're trying link a shared library against a static one + # but the system doesn't support it. + + # Just print a warning and add the library to dependency_libs so + # that the program can be linked against the static library. + echo + $ECHO "*** Warning: This system can not link to static lib archive $lib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have." + if test "$module" = yes; then + echo "*** But as you try to build a module library, libtool will still create " + echo "*** a static module, that should work as long as the dlopening application" + echo "*** is linked with the -dlopen flag to resolve symbols at runtime." + if test -z "$global_symbol_pipe"; then + echo + echo "*** However, this would only work if libtool was able to extract symbol" + echo "*** lists from a program, using \`nm' or equivalent, but libtool could" + echo "*** not find such a program. So, this module is probably useless." + echo "*** \`nm' from GNU binutils and a full rebuild may help." + fi + if test "$build_old_libs" = no; then + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + fi + else + deplibs="$dir/$old_library $deplibs" + link_static=yes + fi + fi # link shared/static library? + + if test "$linkmode" = lib; then + if test -n "$dependency_libs" && + { test "$hardcode_into_libs" != yes || + test "$build_old_libs" = yes || + test "$link_static" = yes; }; then + # Extract -R from dependency_libs + temp_deplibs= + for libdir in $dependency_libs; do + case $libdir in + -R*) func_stripname '-R' '' "$libdir" + temp_xrpath=$func_stripname_result + case " $xrpath " in + *" $temp_xrpath "*) ;; + *) func_append xrpath " $temp_xrpath";; + esac;; + *) func_append temp_deplibs " $libdir";; + esac + done + dependency_libs="$temp_deplibs" + fi + + func_append newlib_search_path " $absdir" + # Link against this library + test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs" + # ... and its dependency_libs + tmp_libs= + for deplib in $dependency_libs; do + newdependency_libs="$deplib $newdependency_libs" + case $deplib in + -L*) func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result";; + *) func_resolve_sysroot "$deplib" ;; + esac + if $opt_preserve_dup_deps ; then + case "$tmp_libs " in + *" $func_resolve_sysroot_result "*) + func_append specialdeplibs " $func_resolve_sysroot_result" ;; + esac + fi + func_append tmp_libs " $func_resolve_sysroot_result" + done + + if test "$link_all_deplibs" != no; then + # Add the search paths of all dependency libraries + for deplib in $dependency_libs; do + path= + case $deplib in + -L*) path="$deplib" ;; + *.la) + func_resolve_sysroot "$deplib" + deplib=$func_resolve_sysroot_result + func_dirname "$deplib" "" "." + dir=$func_dirname_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;; + *) + absdir=`cd "$dir" && pwd` + if test -z "$absdir"; then + func_warning "cannot determine absolute directory name of \`$dir'" + absdir="$dir" + fi + ;; + esac + if $GREP "^installed=no" $deplib > /dev/null; then + case $host in + *-*-darwin*) + depdepl= + eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib` + if test -n "$deplibrary_names" ; then + for tmp in $deplibrary_names ; do + depdepl=$tmp + done + if test -f "$absdir/$objdir/$depdepl" ; then + depdepl="$absdir/$objdir/$depdepl" + darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` + if test -z "$darwin_install_name"; then + darwin_install_name=`${OTOOL64} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` + fi + func_append compiler_flags " ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}" + func_append linker_flags " -dylib_file ${darwin_install_name}:${depdepl}" + path= + fi + fi + ;; + *) + path="-L$absdir/$objdir" + ;; + esac + else + eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib` + test -z "$libdir" && \ + func_fatal_error "\`$deplib' is not a valid libtool archive" + test "$absdir" != "$libdir" && \ + func_warning "\`$deplib' seems to be moved" + + path="-L$absdir" + fi + ;; + esac + case " $deplibs " in + *" $path "*) ;; + *) deplibs="$path $deplibs" ;; + esac + done + fi # link_all_deplibs != no + fi # linkmode = lib + done # for deplib in $libs + if test "$pass" = link; then + if test "$linkmode" = "prog"; then + compile_deplibs="$new_inherited_linker_flags $compile_deplibs" + finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs" + else + compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + fi + fi + dependency_libs="$newdependency_libs" + if test "$pass" = dlpreopen; then + # Link the dlpreopened libraries before other libraries + for deplib in $save_deplibs; do + deplibs="$deplib $deplibs" + done + fi + if test "$pass" != dlopen; then + if test "$pass" != conv; then + # Make sure lib_search_path contains only unique directories. + lib_search_path= + for dir in $newlib_search_path; do + case "$lib_search_path " in + *" $dir "*) ;; + *) func_append lib_search_path " $dir" ;; + esac + done + newlib_search_path= + fi + + if test "$linkmode,$pass" != "prog,link"; then + vars="deplibs" + else + vars="compile_deplibs finalize_deplibs" + fi + for var in $vars dependency_libs; do + # Add libraries to $var in reverse order + eval tmp_libs=\"\$$var\" + new_libs= + for deplib in $tmp_libs; do + # FIXME: Pedantically, this is the right thing to do, so + # that some nasty dependency loop isn't accidentally + # broken: + #new_libs="$deplib $new_libs" + # Pragmatically, this seems to cause very few problems in + # practice: + case $deplib in + -L*) new_libs="$deplib $new_libs" ;; + -R*) ;; + *) + # And here is the reason: when a library appears more + # than once as an explicit dependence of a library, or + # is implicitly linked in more than once by the + # compiler, it is considered special, and multiple + # occurrences thereof are not removed. Compare this + # with having the same library being listed as a + # dependency of multiple other libraries: in this case, + # we know (pedantically, we assume) the library does not + # need to be listed more than once, so we keep only the + # last copy. This is not always right, but it is rare + # enough that we require users that really mean to play + # such unportable linking tricks to link the library + # using -Wl,-lname, so that libtool does not consider it + # for duplicate removal. + case " $specialdeplibs " in + *" $deplib "*) new_libs="$deplib $new_libs" ;; + *) + case " $new_libs " in + *" $deplib "*) ;; + *) new_libs="$deplib $new_libs" ;; + esac + ;; + esac + ;; + esac + done + tmp_libs= + for deplib in $new_libs; do + case $deplib in + -L*) + case " $tmp_libs " in + *" $deplib "*) ;; + *) func_append tmp_libs " $deplib" ;; + esac + ;; + *) func_append tmp_libs " $deplib" ;; + esac + done + eval $var=\"$tmp_libs\" + done # for var + fi + # Last step: remove runtime libs from dependency_libs + # (they stay in deplibs) + tmp_libs= + for i in $dependency_libs ; do + case " $predeps $postdeps $compiler_lib_search_path " in + *" $i "*) + i="" + ;; + esac + if test -n "$i" ; then + func_append tmp_libs " $i" + fi + done + dependency_libs=$tmp_libs + done # for pass + if test "$linkmode" = prog; then + dlfiles="$newdlfiles" + fi + if test "$linkmode" = prog || test "$linkmode" = lib; then + dlprefiles="$newdlprefiles" + fi + + case $linkmode in + oldlib) + if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then + func_warning "\`-dlopen' is ignored for archives" + fi + + case " $deplibs" in + *\ -l* | *\ -L*) + func_warning "\`-l' and \`-L' are ignored for archives" ;; + esac + + test -n "$rpath" && \ + func_warning "\`-rpath' is ignored for archives" + + test -n "$xrpath" && \ + func_warning "\`-R' is ignored for archives" + + test -n "$vinfo" && \ + func_warning "\`-version-info/-version-number' is ignored for archives" + + test -n "$release" && \ + func_warning "\`-release' is ignored for archives" + + test -n "$export_symbols$export_symbols_regex" && \ + func_warning "\`-export-symbols' is ignored for archives" + + # Now set the variables for building old libraries. + build_libtool_libs=no + oldlibs="$output" + func_append objs "$old_deplibs" + ;; + + lib) + # Make sure we only generate libraries of the form `libNAME.la'. + case $outputname in + lib*) + func_stripname 'lib' '.la' "$outputname" + name=$func_stripname_result + eval shared_ext=\"$shrext_cmds\" + eval libname=\"$libname_spec\" + ;; + *) + test "$module" = no && \ + func_fatal_help "libtool library \`$output' must begin with \`lib'" + + if test "$need_lib_prefix" != no; then + # Add the "lib" prefix for modules if required + func_stripname '' '.la' "$outputname" + name=$func_stripname_result + eval shared_ext=\"$shrext_cmds\" + eval libname=\"$libname_spec\" + else + func_stripname '' '.la' "$outputname" + libname=$func_stripname_result + fi + ;; + esac + + if test -n "$objs"; then + if test "$deplibs_check_method" != pass_all; then + func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs" + else + echo + $ECHO "*** Warning: Linking the shared library $output against the non-libtool" + $ECHO "*** objects $objs is not portable!" + func_append libobjs " $objs" + fi + fi + + test "$dlself" != no && \ + func_warning "\`-dlopen self' is ignored for libtool libraries" + + set dummy $rpath + shift + test "$#" -gt 1 && \ + func_warning "ignoring multiple \`-rpath's for a libtool library" + + install_libdir="$1" + + oldlibs= + if test -z "$rpath"; then + if test "$build_libtool_libs" = yes; then + # Building a libtool convenience library. + # Some compilers have problems with a `.al' extension so + # convenience libraries should have the same extension an + # archive normally would. + oldlibs="$output_objdir/$libname.$libext $oldlibs" + build_libtool_libs=convenience + build_old_libs=yes + fi + + test -n "$vinfo" && \ + func_warning "\`-version-info/-version-number' is ignored for convenience libraries" + + test -n "$release" && \ + func_warning "\`-release' is ignored for convenience libraries" + else + + # Parse the version information argument. + save_ifs="$IFS"; IFS=':' + set dummy $vinfo 0 0 0 + shift + IFS="$save_ifs" + + test -n "$7" && \ + func_fatal_help "too many parameters to \`-version-info'" + + # convert absolute version numbers to libtool ages + # this retains compatibility with .la files and attempts + # to make the code below a bit more comprehensible + + case $vinfo_number in + yes) + number_major="$1" + number_minor="$2" + number_revision="$3" + # + # There are really only two kinds -- those that + # use the current revision as the major version + # and those that subtract age and use age as + # a minor version. But, then there is irix + # which has an extra 1 added just for fun + # + case $version_type in + # correct linux to gnu/linux during the next big refactor + darwin|linux|osf|windows|none) + func_arith $number_major + $number_minor + current=$func_arith_result + age="$number_minor" + revision="$number_revision" + ;; + freebsd-aout|freebsd-elf|qnx|sunos) + current="$number_major" + revision="$number_minor" + age="0" + ;; + irix|nonstopux) + func_arith $number_major + $number_minor + current=$func_arith_result + age="$number_minor" + revision="$number_minor" + lt_irix_increment=no + ;; + *) + func_fatal_configuration "$modename: unknown library version type \`$version_type'" + ;; + esac + ;; + no) + current="$1" + revision="$2" + age="$3" + ;; + esac + + # Check that each of the things are valid numbers. + case $current in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "CURRENT \`$current' must be a nonnegative integer" + func_fatal_error "\`$vinfo' is not valid version information" + ;; + esac + + case $revision in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "REVISION \`$revision' must be a nonnegative integer" + func_fatal_error "\`$vinfo' is not valid version information" + ;; + esac + + case $age in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "AGE \`$age' must be a nonnegative integer" + func_fatal_error "\`$vinfo' is not valid version information" + ;; + esac + + if test "$age" -gt "$current"; then + func_error "AGE \`$age' is greater than the current interface number \`$current'" + func_fatal_error "\`$vinfo' is not valid version information" + fi + + # Calculate the version variables. + major= + versuffix= + verstring= + case $version_type in + none) ;; + + darwin) + # Like Linux, but with the current version available in + # verstring for coding it into the library header + func_arith $current - $age + major=.$func_arith_result + versuffix="$major.$age.$revision" + # Darwin ld doesn't like 0 for these options... + func_arith $current + 1 + minor_current=$func_arith_result + xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision" + verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" + ;; + + freebsd-aout) + major=".$current" + versuffix=".$current.$revision"; + ;; + + freebsd-elf) + major=".$current" + versuffix=".$current" + ;; + + irix | nonstopux) + if test "X$lt_irix_increment" = "Xno"; then + func_arith $current - $age + else + func_arith $current - $age + 1 + fi + major=$func_arith_result + + case $version_type in + nonstopux) verstring_prefix=nonstopux ;; + *) verstring_prefix=sgi ;; + esac + verstring="$verstring_prefix$major.$revision" + + # Add in all the interfaces that we are compatible with. + loop=$revision + while test "$loop" -ne 0; do + func_arith $revision - $loop + iface=$func_arith_result + func_arith $loop - 1 + loop=$func_arith_result + verstring="$verstring_prefix$major.$iface:$verstring" + done + + # Before this point, $major must not contain `.'. + major=.$major + versuffix="$major.$revision" + ;; + + linux) # correct to gnu/linux during the next big refactor + func_arith $current - $age + major=.$func_arith_result + versuffix="$major.$age.$revision" + ;; + + osf) + func_arith $current - $age + major=.$func_arith_result + versuffix=".$current.$age.$revision" + verstring="$current.$age.$revision" + + # Add in all the interfaces that we are compatible with. + loop=$age + while test "$loop" -ne 0; do + func_arith $current - $loop + iface=$func_arith_result + func_arith $loop - 1 + loop=$func_arith_result + verstring="$verstring:${iface}.0" + done + + # Make executables depend on our current version. + func_append verstring ":${current}.0" + ;; + + qnx) + major=".$current" + versuffix=".$current" + ;; + + sunos) + major=".$current" + versuffix=".$current.$revision" + ;; + + windows) + # Use '-' rather than '.', since we only want one + # extension on DOS 8.3 filesystems. + func_arith $current - $age + major=$func_arith_result + versuffix="-$major" + ;; + + *) + func_fatal_configuration "unknown library version type \`$version_type'" + ;; + esac + + # Clear the version info if we defaulted, and they specified a release. + if test -z "$vinfo" && test -n "$release"; then + major= + case $version_type in + darwin) + # we can't check for "0.0" in archive_cmds due to quoting + # problems, so we reset it completely + verstring= + ;; + *) + verstring="0.0" + ;; + esac + if test "$need_version" = no; then + versuffix= + else + versuffix=".0.0" + fi + fi + + # Remove version info from name if versioning should be avoided + if test "$avoid_version" = yes && test "$need_version" = no; then + major= + versuffix= + verstring="" + fi + + # Check to see if the archive will have undefined symbols. + if test "$allow_undefined" = yes; then + if test "$allow_undefined_flag" = unsupported; then + func_warning "undefined symbols not allowed in $host shared libraries" + build_libtool_libs=no + build_old_libs=yes + fi + else + # Don't allow undefined symbols. + allow_undefined_flag="$no_undefined_flag" + fi + + fi + + func_generate_dlsyms "$libname" "$libname" "yes" + func_append libobjs " $symfileobj" + test "X$libobjs" = "X " && libobjs= + + if test "$opt_mode" != relink; then + # Remove our outputs, but don't remove object files since they + # may have been created when compiling PIC objects. + removelist= + tempremovelist=`$ECHO "$output_objdir/*"` + for p in $tempremovelist; do + case $p in + *.$objext | *.gcno) + ;; + $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*) + if test "X$precious_files_regex" != "X"; then + if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 + then + continue + fi + fi + func_append removelist " $p" + ;; + *) ;; + esac + done + test -n "$removelist" && \ + func_show_eval "${RM}r \$removelist" + fi + + # Now set the variables for building old libraries. + if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then + func_append oldlibs " $output_objdir/$libname.$libext" + + # Transform .lo files to .o files. + oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; $lo2o" | $NL2SP` + fi + + # Eliminate all temporary directories. + #for path in $notinst_path; do + # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` + # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` + # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` + #done + + if test -n "$xrpath"; then + # If the user specified any rpath flags, then add them. + temp_xrpath= + for libdir in $xrpath; do + func_replace_sysroot "$libdir" + func_append temp_xrpath " -R$func_replace_sysroot_result" + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + done + if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then + dependency_libs="$temp_xrpath $dependency_libs" + fi + fi + + # Make sure dlfiles contains only unique files that won't be dlpreopened + old_dlfiles="$dlfiles" + dlfiles= + for lib in $old_dlfiles; do + case " $dlprefiles $dlfiles " in + *" $lib "*) ;; + *) func_append dlfiles " $lib" ;; + esac + done + + # Make sure dlprefiles contains only unique files + old_dlprefiles="$dlprefiles" + dlprefiles= + for lib in $old_dlprefiles; do + case "$dlprefiles " in + *" $lib "*) ;; + *) func_append dlprefiles " $lib" ;; + esac + done + + if test "$build_libtool_libs" = yes; then + if test -n "$rpath"; then + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*) + # these systems don't actually have a c library (as such)! + ;; + *-*-rhapsody* | *-*-darwin1.[012]) + # Rhapsody C library is in the System framework + func_append deplibs " System.ltframework" + ;; + *-*-netbsd*) + # Don't link with libc until the a.out ld.so is fixed. + ;; + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) + # Do not include libc due to us having libc/libc_r. + ;; + *-*-sco3.2v5* | *-*-sco5v6*) + # Causes problems with __ctype + ;; + *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) + # Compiler inserts libc in the correct place for threads to work + ;; + *) + # Add libc to deplibs on all other systems if necessary. + if test "$build_libtool_need_lc" = "yes"; then + func_append deplibs " -lc" + fi + ;; + esac + fi + + # Transform deplibs into only deplibs that can be linked in shared. + name_save=$name + libname_save=$libname + release_save=$release + versuffix_save=$versuffix + major_save=$major + # I'm not sure if I'm treating the release correctly. I think + # release should show up in the -l (ie -lgmp5) so we don't want to + # add it in twice. Is that correct? + release="" + versuffix="" + major="" + newdeplibs= + droppeddeps=no + case $deplibs_check_method in + pass_all) + # Don't check for shared/static. Everything works. + # This might be a little naive. We might want to check + # whether the library exists or not. But this is on + # osf3 & osf4 and I'm not really sure... Just + # implementing what was already the behavior. + newdeplibs=$deplibs + ;; + test_compile) + # This code stresses the "libraries are programs" paradigm to its + # limits. Maybe even breaks it. We compile a program, linking it + # against the deplibs as a proxy for the library. Then we can check + # whether they linked in statically or dynamically with ldd. + $opt_dry_run || $RM conftest.c + cat > conftest.c </dev/null` + $nocaseglob + else + potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null` + fi + for potent_lib in $potential_libs; do + # Follow soft links. + if ls -lLd "$potent_lib" 2>/dev/null | + $GREP " -> " >/dev/null; then + continue + fi + # The statement above tries to avoid entering an + # endless loop below, in case of cyclic links. + # We might still enter an endless loop, since a link + # loop can be closed while we follow links, + # but so what? + potlib="$potent_lib" + while test -h "$potlib" 2>/dev/null; do + potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'` + case $potliblink in + [\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";; + *) potlib=`$ECHO "$potlib" | $SED 's,[^/]*$,,'`"$potliblink";; + esac + done + if eval $file_magic_cmd \"\$potlib\" 2>/dev/null | + $SED -e 10q | + $EGREP "$file_magic_regex" > /dev/null; then + func_append newdeplibs " $a_deplib" + a_deplib="" + break 2 + fi + done + done + fi + if test -n "$a_deplib" ; then + droppeddeps=yes + echo + $ECHO "*** Warning: linker path does not have real file for library $a_deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because I did check the linker path looking for a file starting" + if test -z "$potlib" ; then + $ECHO "*** with $libname but no candidates were found. (...for file magic test)" + else + $ECHO "*** with $libname and none of the candidates passed a file format test" + $ECHO "*** using a file magic. Last file checked: $potlib" + fi + fi + ;; + *) + # Add a -L argument. + func_append newdeplibs " $a_deplib" + ;; + esac + done # Gone through all deplibs. + ;; + match_pattern*) + set dummy $deplibs_check_method; shift + match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` + for a_deplib in $deplibs; do + case $a_deplib in + -l*) + func_stripname -l '' "$a_deplib" + name=$func_stripname_result + if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then + case " $predeps $postdeps " in + *" $a_deplib "*) + func_append newdeplibs " $a_deplib" + a_deplib="" + ;; + esac + fi + if test -n "$a_deplib" ; then + libname=`eval "\\$ECHO \"$libname_spec\""` + for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do + potential_libs=`ls $i/$libname[.-]* 2>/dev/null` + for potent_lib in $potential_libs; do + potlib="$potent_lib" # see symlink-check above in file_magic test + if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \ + $EGREP "$match_pattern_regex" > /dev/null; then + func_append newdeplibs " $a_deplib" + a_deplib="" + break 2 + fi + done + done + fi + if test -n "$a_deplib" ; then + droppeddeps=yes + echo + $ECHO "*** Warning: linker path does not have real file for library $a_deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because I did check the linker path looking for a file starting" + if test -z "$potlib" ; then + $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)" + else + $ECHO "*** with $libname and none of the candidates passed a file format test" + $ECHO "*** using a regex pattern. Last file checked: $potlib" + fi + fi + ;; + *) + # Add a -L argument. + func_append newdeplibs " $a_deplib" + ;; + esac + done # Gone through all deplibs. + ;; + none | unknown | *) + newdeplibs="" + tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'` + if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then + for i in $predeps $postdeps ; do + # can't use Xsed below, because $i might contain '/' + tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s,$i,,"` + done + fi + case $tmp_deplibs in + *[!\ \ ]*) + echo + if test "X$deplibs_check_method" = "Xnone"; then + echo "*** Warning: inter-library dependencies are not supported in this platform." + else + echo "*** Warning: inter-library dependencies are not known to be supported." + fi + echo "*** All declared inter-library dependencies are being dropped." + droppeddeps=yes + ;; + esac + ;; + esac + versuffix=$versuffix_save + major=$major_save + release=$release_save + libname=$libname_save + name=$name_save + + case $host in + *-*-rhapsody* | *-*-darwin1.[012]) + # On Rhapsody replace the C library with the System framework + newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'` + ;; + esac + + if test "$droppeddeps" = yes; then + if test "$module" = yes; then + echo + echo "*** Warning: libtool could not satisfy all declared inter-library" + $ECHO "*** dependencies of module $libname. Therefore, libtool will create" + echo "*** a static module, that should work as long as the dlopening" + echo "*** application is linked with the -dlopen flag." + if test -z "$global_symbol_pipe"; then + echo + echo "*** However, this would only work if libtool was able to extract symbol" + echo "*** lists from a program, using \`nm' or equivalent, but libtool could" + echo "*** not find such a program. So, this module is probably useless." + echo "*** \`nm' from GNU binutils and a full rebuild may help." + fi + if test "$build_old_libs" = no; then + oldlibs="$output_objdir/$libname.$libext" + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + else + echo "*** The inter-library dependencies that have been dropped here will be" + echo "*** automatically added whenever a program is linked with this library" + echo "*** or is declared to -dlopen it." + + if test "$allow_undefined" = no; then + echo + echo "*** Since this library must not contain undefined symbols," + echo "*** because either the platform does not support them or" + echo "*** it was explicitly requested with -no-undefined," + echo "*** libtool will only create a static version of it." + if test "$build_old_libs" = no; then + oldlibs="$output_objdir/$libname.$libext" + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + fi + fi + fi + # Done checking deplibs! + deplibs=$newdeplibs + fi + # Time to change all our "foo.ltframework" stuff back to "-framework foo" + case $host in + *-*-darwin*) + newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + ;; + esac + + # move library search paths that coincide with paths to not yet + # installed libraries to the beginning of the library search list + new_libs= + for path in $notinst_path; do + case " $new_libs " in + *" -L$path/$objdir "*) ;; + *) + case " $deplibs " in + *" -L$path/$objdir "*) + func_append new_libs " -L$path/$objdir" ;; + esac + ;; + esac + done + for deplib in $deplibs; do + case $deplib in + -L*) + case " $new_libs " in + *" $deplib "*) ;; + *) func_append new_libs " $deplib" ;; + esac + ;; + *) func_append new_libs " $deplib" ;; + esac + done + deplibs="$new_libs" + + # All the library-specific variables (install_libdir is set above). + library_names= + old_library= + dlname= + + # Test again, we may have decided not to build it any more + if test "$build_libtool_libs" = yes; then + # Remove ${wl} instances when linking with ld. + # FIXME: should test the right _cmds variable. + case $archive_cmds in + *\$LD\ *) wl= ;; + esac + if test "$hardcode_into_libs" = yes; then + # Hardcode the library paths + hardcode_libdirs= + dep_rpath= + rpath="$finalize_rpath" + test "$opt_mode" != relink && rpath="$compile_rpath$rpath" + for libdir in $rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + func_replace_sysroot "$libdir" + libdir=$func_replace_sysroot_result + if test -z "$hardcode_libdirs"; then + hardcode_libdirs="$libdir" + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append dep_rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$perm_rpath " in + *" $libdir "*) ;; + *) func_append perm_rpath " $libdir" ;; + esac + fi + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir="$hardcode_libdirs" + eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" + fi + if test -n "$runpath_var" && test -n "$perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $perm_rpath; do + func_append rpath "$dir:" + done + eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" + fi + test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" + fi + + shlibpath="$finalize_shlibpath" + test "$opt_mode" != relink && shlibpath="$compile_shlibpath$shlibpath" + if test -n "$shlibpath"; then + eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" + fi + + # Get the real and link names of the library. + eval shared_ext=\"$shrext_cmds\" + eval library_names=\"$library_names_spec\" + set dummy $library_names + shift + realname="$1" + shift + + if test -n "$soname_spec"; then + eval soname=\"$soname_spec\" + else + soname="$realname" + fi + if test -z "$dlname"; then + dlname=$soname + fi + + lib="$output_objdir/$realname" + linknames= + for link + do + func_append linknames " $link" + done + + # Use standard objects if they are pic + test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` + test "X$libobjs" = "X " && libobjs= + + delfiles= + if test -n "$export_symbols" && test -n "$include_expsyms"; then + $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" + export_symbols="$output_objdir/$libname.uexp" + func_append delfiles " $export_symbols" + fi + + orig_export_symbols= + case $host_os in + cygwin* | mingw* | cegcc*) + if test -n "$export_symbols" && test -z "$export_symbols_regex"; then + # exporting using user supplied symfile + if test "x`$SED 1q $export_symbols`" != xEXPORTS; then + # and it's NOT already a .def file. Must figure out + # which of the given symbols are data symbols and tag + # them as such. So, trigger use of export_symbols_cmds. + # export_symbols gets reassigned inside the "prepare + # the list of exported symbols" if statement, so the + # include_expsyms logic still works. + orig_export_symbols="$export_symbols" + export_symbols= + always_export_symbols=yes + fi + fi + ;; + esac + + # Prepare the list of exported symbols + if test -z "$export_symbols"; then + if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then + func_verbose "generating symbol list for \`$libname.la'" + export_symbols="$output_objdir/$libname.exp" + $opt_dry_run || $RM $export_symbols + cmds=$export_symbols_cmds + save_ifs="$IFS"; IFS='~' + for cmd1 in $cmds; do + IFS="$save_ifs" + # Take the normal branch if the nm_file_list_spec branch + # doesn't work or if tool conversion is not needed. + case $nm_file_list_spec~$to_tool_file_cmd in + *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*) + try_normal_branch=yes + eval cmd=\"$cmd1\" + func_len " $cmd" + len=$func_len_result + ;; + *) + try_normal_branch=no + ;; + esac + if test "$try_normal_branch" = yes \ + && { test "$len" -lt "$max_cmd_len" \ + || test "$max_cmd_len" -le -1; } + then + func_show_eval "$cmd" 'exit $?' + skipped_export=false + elif test -n "$nm_file_list_spec"; then + func_basename "$output" + output_la=$func_basename_result + save_libobjs=$libobjs + save_output=$output + output=${output_objdir}/${output_la}.nm + func_to_tool_file "$output" + libobjs=$nm_file_list_spec$func_to_tool_file_result + func_append delfiles " $output" + func_verbose "creating $NM input file list: $output" + for obj in $save_libobjs; do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" + done > "$output" + eval cmd=\"$cmd1\" + func_show_eval "$cmd" 'exit $?' + output=$save_output + libobjs=$save_libobjs + skipped_export=false + else + # The command line is too long to execute in one step. + func_verbose "using reloadable object file for export list..." + skipped_export=: + # Break out early, otherwise skipped_export may be + # set to false by a later but shorter cmd. + break + fi + done + IFS="$save_ifs" + if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then + func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' + func_show_eval '$MV "${export_symbols}T" "$export_symbols"' + fi + fi + fi + + if test -n "$export_symbols" && test -n "$include_expsyms"; then + tmp_export_symbols="$export_symbols" + test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols" + $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' + fi + + if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then + # The given exports_symbols file has to be filtered, so filter it. + func_verbose "filter symbol list for \`$libname.la' to tag DATA exports" + # FIXME: $output_objdir/$libname.filter potentially contains lots of + # 's' commands which not all seds can handle. GNU sed should be fine + # though. Also, the filter scales superlinearly with the number of + # global variables. join(1) would be nice here, but unfortunately + # isn't a blessed tool. + $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter + func_append delfiles " $export_symbols $output_objdir/$libname.filter" + export_symbols=$output_objdir/$libname.def + $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols + fi + + tmp_deplibs= + for test_deplib in $deplibs; do + case " $convenience " in + *" $test_deplib "*) ;; + *) + func_append tmp_deplibs " $test_deplib" + ;; + esac + done + deplibs="$tmp_deplibs" + + if test -n "$convenience"; then + if test -n "$whole_archive_flag_spec" && + test "$compiler_needs_object" = yes && + test -z "$libobjs"; then + # extract the archives, so we have objects to list. + # TODO: could optimize this to just extract one archive. + whole_archive_flag_spec= + fi + if test -n "$whole_archive_flag_spec"; then + save_libobjs=$libobjs + eval libobjs=\"\$libobjs $whole_archive_flag_spec\" + test "X$libobjs" = "X " && libobjs= + else + gentop="$output_objdir/${outputname}x" + func_append generated " $gentop" + + func_extract_archives $gentop $convenience + func_append libobjs " $func_extract_archives_result" + test "X$libobjs" = "X " && libobjs= + fi + fi + + if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then + eval flag=\"$thread_safe_flag_spec\" + func_append linker_flags " $flag" + fi + + # Make a backup of the uninstalled library when relinking + if test "$opt_mode" = relink; then + $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? + fi + + # Do each of the archive commands. + if test "$module" = yes && test -n "$module_cmds" ; then + if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then + eval test_cmds=\"$module_expsym_cmds\" + cmds=$module_expsym_cmds + else + eval test_cmds=\"$module_cmds\" + cmds=$module_cmds + fi + else + if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then + eval test_cmds=\"$archive_expsym_cmds\" + cmds=$archive_expsym_cmds + else + eval test_cmds=\"$archive_cmds\" + cmds=$archive_cmds + fi + fi + + if test "X$skipped_export" != "X:" && + func_len " $test_cmds" && + len=$func_len_result && + test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then + : + else + # The command line is too long to link in one step, link piecewise + # or, if using GNU ld and skipped_export is not :, use a linker + # script. + + # Save the value of $output and $libobjs because we want to + # use them later. If we have whole_archive_flag_spec, we + # want to use save_libobjs as it was before + # whole_archive_flag_spec was expanded, because we can't + # assume the linker understands whole_archive_flag_spec. + # This may have to be revisited, in case too many + # convenience libraries get linked in and end up exceeding + # the spec. + if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then + save_libobjs=$libobjs + fi + save_output=$output + func_basename "$output" + output_la=$func_basename_result + + # Clear the reloadable object creation command queue and + # initialize k to one. + test_cmds= + concat_cmds= + objlist= + last_robj= + k=1 + + if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then + output=${output_objdir}/${output_la}.lnkscript + func_verbose "creating GNU ld script: $output" + echo 'INPUT (' > $output + for obj in $save_libobjs + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" >> $output + done + echo ')' >> $output + func_append delfiles " $output" + func_to_tool_file "$output" + output=$func_to_tool_file_result + elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then + output=${output_objdir}/${output_la}.lnk + func_verbose "creating linker input file list: $output" + : > $output + set x $save_libobjs + shift + firstobj= + if test "$compiler_needs_object" = yes; then + firstobj="$1 " + shift + fi + for obj + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" >> $output + done + func_append delfiles " $output" + func_to_tool_file "$output" + output=$firstobj\"$file_list_spec$func_to_tool_file_result\" + else + if test -n "$save_libobjs"; then + func_verbose "creating reloadable object files..." + output=$output_objdir/$output_la-${k}.$objext + eval test_cmds=\"$reload_cmds\" + func_len " $test_cmds" + len0=$func_len_result + len=$len0 + + # Loop over the list of objects to be linked. + for obj in $save_libobjs + do + func_len " $obj" + func_arith $len + $func_len_result + len=$func_arith_result + if test "X$objlist" = X || + test "$len" -lt "$max_cmd_len"; then + func_append objlist " $obj" + else + # The command $test_cmds is almost too long, add a + # command to the queue. + if test "$k" -eq 1 ; then + # The first file doesn't have a previous command to add. + reload_objs=$objlist + eval concat_cmds=\"$reload_cmds\" + else + # All subsequent reloadable object files will link in + # the last one created. + reload_objs="$objlist $last_robj" + eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\" + fi + last_robj=$output_objdir/$output_la-${k}.$objext + func_arith $k + 1 + k=$func_arith_result + output=$output_objdir/$output_la-${k}.$objext + objlist=" $obj" + func_len " $last_robj" + func_arith $len0 + $func_len_result + len=$func_arith_result + fi + done + # Handle the remaining objects by creating one last + # reloadable object file. All subsequent reloadable object + # files will link in the last one created. + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + reload_objs="$objlist $last_robj" + eval concat_cmds=\"\${concat_cmds}$reload_cmds\" + if test -n "$last_robj"; then + eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\" + fi + func_append delfiles " $output" + + else + output= + fi + + if ${skipped_export-false}; then + func_verbose "generating symbol list for \`$libname.la'" + export_symbols="$output_objdir/$libname.exp" + $opt_dry_run || $RM $export_symbols + libobjs=$output + # Append the command to create the export file. + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" + if test -n "$last_robj"; then + eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" + fi + fi + + test -n "$save_libobjs" && + func_verbose "creating a temporary reloadable object file: $output" + + # Loop through the commands generated above and execute them. + save_ifs="$IFS"; IFS='~' + for cmd in $concat_cmds; do + IFS="$save_ifs" + $opt_silent || { + func_quote_for_expand "$cmd" + eval "func_echo $func_quote_for_expand_result" + } + $opt_dry_run || eval "$cmd" || { + lt_exit=$? + + # Restore the uninstalled library and exit + if test "$opt_mode" = relink; then + ( cd "$output_objdir" && \ + $RM "${realname}T" && \ + $MV "${realname}U" "$realname" ) + fi + + exit $lt_exit + } + done + IFS="$save_ifs" + + if test -n "$export_symbols_regex" && ${skipped_export-false}; then + func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' + func_show_eval '$MV "${export_symbols}T" "$export_symbols"' + fi + fi + + if ${skipped_export-false}; then + if test -n "$export_symbols" && test -n "$include_expsyms"; then + tmp_export_symbols="$export_symbols" + test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols" + $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' + fi + + if test -n "$orig_export_symbols"; then + # The given exports_symbols file has to be filtered, so filter it. + func_verbose "filter symbol list for \`$libname.la' to tag DATA exports" + # FIXME: $output_objdir/$libname.filter potentially contains lots of + # 's' commands which not all seds can handle. GNU sed should be fine + # though. Also, the filter scales superlinearly with the number of + # global variables. join(1) would be nice here, but unfortunately + # isn't a blessed tool. + $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter + func_append delfiles " $export_symbols $output_objdir/$libname.filter" + export_symbols=$output_objdir/$libname.def + $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols + fi + fi + + libobjs=$output + # Restore the value of output. + output=$save_output + + if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then + eval libobjs=\"\$libobjs $whole_archive_flag_spec\" + test "X$libobjs" = "X " && libobjs= + fi + # Expand the library linking commands again to reset the + # value of $libobjs for piecewise linking. + + # Do each of the archive commands. + if test "$module" = yes && test -n "$module_cmds" ; then + if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then + cmds=$module_expsym_cmds + else + cmds=$module_cmds + fi + else + if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then + cmds=$archive_expsym_cmds + else + cmds=$archive_cmds + fi + fi + fi + + if test -n "$delfiles"; then + # Append the command to remove temporary files to $cmds. + eval cmds=\"\$cmds~\$RM $delfiles\" + fi + + # Add any objects from preloaded convenience libraries + if test -n "$dlprefiles"; then + gentop="$output_objdir/${outputname}x" + func_append generated " $gentop" + + func_extract_archives $gentop $dlprefiles + func_append libobjs " $func_extract_archives_result" + test "X$libobjs" = "X " && libobjs= + fi + + save_ifs="$IFS"; IFS='~' + for cmd in $cmds; do + IFS="$save_ifs" + eval cmd=\"$cmd\" + $opt_silent || { + func_quote_for_expand "$cmd" + eval "func_echo $func_quote_for_expand_result" + } + $opt_dry_run || eval "$cmd" || { + lt_exit=$? + + # Restore the uninstalled library and exit + if test "$opt_mode" = relink; then + ( cd "$output_objdir" && \ + $RM "${realname}T" && \ + $MV "${realname}U" "$realname" ) + fi + + exit $lt_exit + } + done + IFS="$save_ifs" + + # Restore the uninstalled library and exit + if test "$opt_mode" = relink; then + $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $? + + if test -n "$convenience"; then + if test -z "$whole_archive_flag_spec"; then + func_show_eval '${RM}r "$gentop"' + fi + fi + + exit $EXIT_SUCCESS + fi + + # Create links to the real library. + for linkname in $linknames; do + if test "$realname" != "$linkname"; then + func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?' + fi + done + + # If -module or -export-dynamic was specified, set the dlname. + if test "$module" = yes || test "$export_dynamic" = yes; then + # On all known operating systems, these are identical. + dlname="$soname" + fi + fi + ;; + + obj) + if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then + func_warning "\`-dlopen' is ignored for objects" + fi + + case " $deplibs" in + *\ -l* | *\ -L*) + func_warning "\`-l' and \`-L' are ignored for objects" ;; + esac + + test -n "$rpath" && \ + func_warning "\`-rpath' is ignored for objects" + + test -n "$xrpath" && \ + func_warning "\`-R' is ignored for objects" + + test -n "$vinfo" && \ + func_warning "\`-version-info' is ignored for objects" + + test -n "$release" && \ + func_warning "\`-release' is ignored for objects" + + case $output in + *.lo) + test -n "$objs$old_deplibs" && \ + func_fatal_error "cannot build library object \`$output' from non-libtool objects" + + libobj=$output + func_lo2o "$libobj" + obj=$func_lo2o_result + ;; + *) + libobj= + obj="$output" + ;; + esac + + # Delete the old objects. + $opt_dry_run || $RM $obj $libobj + + # Objects from convenience libraries. This assumes + # single-version convenience libraries. Whenever we create + # different ones for PIC/non-PIC, this we'll have to duplicate + # the extraction. + reload_conv_objs= + gentop= + # reload_cmds runs $LD directly, so let us get rid of + # -Wl from whole_archive_flag_spec and hope we can get by with + # turning comma into space.. + wl= + + if test -n "$convenience"; then + if test -n "$whole_archive_flag_spec"; then + eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\" + reload_conv_objs=$reload_objs\ `$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'` + else + gentop="$output_objdir/${obj}x" + func_append generated " $gentop" + + func_extract_archives $gentop $convenience + reload_conv_objs="$reload_objs $func_extract_archives_result" + fi + fi + + # If we're not building shared, we need to use non_pic_objs + test "$build_libtool_libs" != yes && libobjs="$non_pic_objects" + + # Create the old-style object. + reload_objs="$objs$old_deplibs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; /\.lib$/d; $lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test + + output="$obj" + func_execute_cmds "$reload_cmds" 'exit $?' + + # Exit if we aren't doing a library object file. + if test -z "$libobj"; then + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + exit $EXIT_SUCCESS + fi + + if test "$build_libtool_libs" != yes; then + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + # Create an invalid libtool object if no PIC, so that we don't + # accidentally link it into a program. + # $show "echo timestamp > $libobj" + # $opt_dry_run || eval "echo timestamp > $libobj" || exit $? + exit $EXIT_SUCCESS + fi + + if test -n "$pic_flag" || test "$pic_mode" != default; then + # Only do commands if we really have different PIC objects. + reload_objs="$libobjs $reload_conv_objs" + output="$libobj" + func_execute_cmds "$reload_cmds" 'exit $?' + fi + + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + exit $EXIT_SUCCESS + ;; + + prog) + case $host in + *cygwin*) func_stripname '' '.exe' "$output" + output=$func_stripname_result.exe;; + esac + test -n "$vinfo" && \ + func_warning "\`-version-info' is ignored for programs" + + test -n "$release" && \ + func_warning "\`-release' is ignored for programs" + + test "$preload" = yes \ + && test "$dlopen_support" = unknown \ + && test "$dlopen_self" = unknown \ + && test "$dlopen_self_static" = unknown && \ + func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support." + + case $host in + *-*-rhapsody* | *-*-darwin1.[012]) + # On Rhapsody replace the C library is the System framework + compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'` + finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'` + ;; + esac + + case $host in + *-*-darwin*) + # Don't allow lazy linking, it breaks C++ global constructors + # But is supposedly fixed on 10.4 or later (yay!). + if test "$tagname" = CXX ; then + case ${MACOSX_DEPLOYMENT_TARGET-10.0} in + 10.[0123]) + func_append compile_command " ${wl}-bind_at_load" + func_append finalize_command " ${wl}-bind_at_load" + ;; + esac + fi + # Time to change all our "foo.ltframework" stuff back to "-framework foo" + compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + ;; + esac + + + # move library search paths that coincide with paths to not yet + # installed libraries to the beginning of the library search list + new_libs= + for path in $notinst_path; do + case " $new_libs " in + *" -L$path/$objdir "*) ;; + *) + case " $compile_deplibs " in + *" -L$path/$objdir "*) + func_append new_libs " -L$path/$objdir" ;; + esac + ;; + esac + done + for deplib in $compile_deplibs; do + case $deplib in + -L*) + case " $new_libs " in + *" $deplib "*) ;; + *) func_append new_libs " $deplib" ;; + esac + ;; + *) func_append new_libs " $deplib" ;; + esac + done + compile_deplibs="$new_libs" + + + func_append compile_command " $compile_deplibs" + func_append finalize_command " $finalize_deplibs" + + if test -n "$rpath$xrpath"; then + # If the user specified any rpath flags, then add them. + for libdir in $rpath $xrpath; do + # This is the magic to use -rpath. + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + done + fi + + # Now hardcode the library paths + rpath= + hardcode_libdirs= + for libdir in $compile_rpath $finalize_rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + if test -z "$hardcode_libdirs"; then + hardcode_libdirs="$libdir" + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$perm_rpath " in + *" $libdir "*) ;; + *) func_append perm_rpath " $libdir" ;; + esac + fi + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'` + case :$dllsearchpath: in + *":$libdir:"*) ;; + ::) dllsearchpath=$libdir;; + *) func_append dllsearchpath ":$libdir";; + esac + case :$dllsearchpath: in + *":$testbindir:"*) ;; + ::) dllsearchpath=$testbindir;; + *) func_append dllsearchpath ":$testbindir";; + esac + ;; + esac + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir="$hardcode_libdirs" + eval rpath=\" $hardcode_libdir_flag_spec\" + fi + compile_rpath="$rpath" + + rpath= + hardcode_libdirs= + for libdir in $finalize_rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + if test -z "$hardcode_libdirs"; then + hardcode_libdirs="$libdir" + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$finalize_perm_rpath " in + *" $libdir "*) ;; + *) func_append finalize_perm_rpath " $libdir" ;; + esac + fi + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir="$hardcode_libdirs" + eval rpath=\" $hardcode_libdir_flag_spec\" + fi + finalize_rpath="$rpath" + + if test -n "$libobjs" && test "$build_old_libs" = yes; then + # Transform all the library objects into standard objects. + compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP` + finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP` + fi + + func_generate_dlsyms "$outputname" "@PROGRAM@" "no" + + # template prelinking step + if test -n "$prelink_cmds"; then + func_execute_cmds "$prelink_cmds" 'exit $?' + fi + + wrappers_required=yes + case $host in + *cegcc* | *mingw32ce*) + # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway. + wrappers_required=no + ;; + *cygwin* | *mingw* ) + if test "$build_libtool_libs" != yes; then + wrappers_required=no + fi + ;; + *) + if test "$need_relink" = no || test "$build_libtool_libs" != yes; then + wrappers_required=no + fi + ;; + esac + if test "$wrappers_required" = no; then + # Replace the output file specification. + compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'` + link_command="$compile_command$compile_rpath" + + # We have no uninstalled library dependencies, so finalize right now. + exit_status=0 + func_show_eval "$link_command" 'exit_status=$?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + # Delete the generated files. + if test -f "$output_objdir/${outputname}S.${objext}"; then + func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"' + fi + + exit $exit_status + fi + + if test -n "$compile_shlibpath$finalize_shlibpath"; then + compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command" + fi + if test -n "$finalize_shlibpath"; then + finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command" + fi + + compile_var= + finalize_var= + if test -n "$runpath_var"; then + if test -n "$perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $perm_rpath; do + func_append rpath "$dir:" + done + compile_var="$runpath_var=\"$rpath\$$runpath_var\" " + fi + if test -n "$finalize_perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $finalize_perm_rpath; do + func_append rpath "$dir:" + done + finalize_var="$runpath_var=\"$rpath\$$runpath_var\" " + fi + fi + + if test "$no_install" = yes; then + # We don't need to create a wrapper script. + link_command="$compile_var$compile_command$compile_rpath" + # Replace the output file specification. + link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'` + # Delete the old output file. + $opt_dry_run || $RM $output + # Link the executable and exit + func_show_eval "$link_command" 'exit $?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + exit $EXIT_SUCCESS + fi + + if test "$hardcode_action" = relink; then + # Fast installation is not supported + link_command="$compile_var$compile_command$compile_rpath" + relink_command="$finalize_var$finalize_command$finalize_rpath" + + func_warning "this platform does not like uninstalled shared libraries" + func_warning "\`$output' will be relinked during installation" + else + if test "$fast_install" != no; then + link_command="$finalize_var$compile_command$finalize_rpath" + if test "$fast_install" = yes; then + relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'` + else + # fast_install is set to needless + relink_command= + fi + else + link_command="$compile_var$compile_command$compile_rpath" + relink_command="$finalize_var$finalize_command$finalize_rpath" + fi + fi + + # Replace the output file specification. + link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'` + + # Delete the old output files. + $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname + + func_show_eval "$link_command" 'exit $?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output_objdir/$outputname" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + # Now create the wrapper script. + func_verbose "creating $output" + + # Quote the relink command for shipping. + if test -n "$relink_command"; then + # Preserve any variables that may affect compiler behavior + for var in $variables_saved_for_relink; do + if eval test -z \"\${$var+set}\"; then + relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" + elif eval var_value=\$$var; test -z "$var_value"; then + relink_command="$var=; export $var; $relink_command" + else + func_quote_for_eval "$var_value" + relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" + fi + done + relink_command="(cd `pwd`; $relink_command)" + relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` + fi + + # Only actually do things if not in dry run mode. + $opt_dry_run || { + # win32 will think the script is a binary if it has + # a .exe suffix, so we strip it off here. + case $output in + *.exe) func_stripname '' '.exe' "$output" + output=$func_stripname_result ;; + esac + # test for cygwin because mv fails w/o .exe extensions + case $host in + *cygwin*) + exeext=.exe + func_stripname '' '.exe' "$outputname" + outputname=$func_stripname_result ;; + *) exeext= ;; + esac + case $host in + *cygwin* | *mingw* ) + func_dirname_and_basename "$output" "" "." + output_name=$func_basename_result + output_path=$func_dirname_result + cwrappersource="$output_path/$objdir/lt-$output_name.c" + cwrapper="$output_path/$output_name.exe" + $RM $cwrappersource $cwrapper + trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15 + + func_emit_cwrapperexe_src > $cwrappersource + + # The wrapper executable is built using the $host compiler, + # because it contains $host paths and files. If cross- + # compiling, it, like the target executable, must be + # executed on the $host or under an emulation environment. + $opt_dry_run || { + $LTCC $LTCFLAGS -o $cwrapper $cwrappersource + $STRIP $cwrapper + } + + # Now, create the wrapper script for func_source use: + func_ltwrapper_scriptname $cwrapper + $RM $func_ltwrapper_scriptname_result + trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15 + $opt_dry_run || { + # note: this script will not be executed, so do not chmod. + if test "x$build" = "x$host" ; then + $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result + else + func_emit_wrapper no > $func_ltwrapper_scriptname_result + fi + } + ;; + * ) + $RM $output + trap "$RM $output; exit $EXIT_FAILURE" 1 2 15 + + func_emit_wrapper no > $output + chmod +x $output + ;; + esac + } + exit $EXIT_SUCCESS + ;; + esac + + # See if we need to build an old-fashioned archive. + for oldlib in $oldlibs; do + + if test "$build_libtool_libs" = convenience; then + oldobjs="$libobjs_save $symfileobj" + addlibs="$convenience" + build_libtool_libs=no + else + if test "$build_libtool_libs" = module; then + oldobjs="$libobjs_save" + build_libtool_libs=no + else + oldobjs="$old_deplibs $non_pic_objects" + if test "$preload" = yes && test -f "$symfileobj"; then + func_append oldobjs " $symfileobj" + fi + fi + addlibs="$old_convenience" + fi + + if test -n "$addlibs"; then + gentop="$output_objdir/${outputname}x" + func_append generated " $gentop" + + func_extract_archives $gentop $addlibs + func_append oldobjs " $func_extract_archives_result" + fi + + # Do each command in the archive commands. + if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then + cmds=$old_archive_from_new_cmds + else + + # Add any objects from preloaded convenience libraries + if test -n "$dlprefiles"; then + gentop="$output_objdir/${outputname}x" + func_append generated " $gentop" + + func_extract_archives $gentop $dlprefiles + func_append oldobjs " $func_extract_archives_result" + fi + + # POSIX demands no paths to be encoded in archives. We have + # to avoid creating archives with duplicate basenames if we + # might have to extract them afterwards, e.g., when creating a + # static archive out of a convenience library, or when linking + # the entirety of a libtool archive into another (currently + # not supported by libtool). + if (for obj in $oldobjs + do + func_basename "$obj" + $ECHO "$func_basename_result" + done | sort | sort -uc >/dev/null 2>&1); then + : + else + echo "copying selected object files to avoid basename conflicts..." + gentop="$output_objdir/${outputname}x" + func_append generated " $gentop" + func_mkdir_p "$gentop" + save_oldobjs=$oldobjs + oldobjs= + counter=1 + for obj in $save_oldobjs + do + func_basename "$obj" + objbase="$func_basename_result" + case " $oldobjs " in + " ") oldobjs=$obj ;; + *[\ /]"$objbase "*) + while :; do + # Make sure we don't pick an alternate name that also + # overlaps. + newobj=lt$counter-$objbase + func_arith $counter + 1 + counter=$func_arith_result + case " $oldobjs " in + *[\ /]"$newobj "*) ;; + *) if test ! -f "$gentop/$newobj"; then break; fi ;; + esac + done + func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj" + func_append oldobjs " $gentop/$newobj" + ;; + *) func_append oldobjs " $obj" ;; + esac + done + fi + func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 + tool_oldlib=$func_to_tool_file_result + eval cmds=\"$old_archive_cmds\" + + func_len " $cmds" + len=$func_len_result + if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then + cmds=$old_archive_cmds + elif test -n "$archiver_list_spec"; then + func_verbose "using command file archive linking..." + for obj in $oldobjs + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" + done > $output_objdir/$libname.libcmd + func_to_tool_file "$output_objdir/$libname.libcmd" + oldobjs=" $archiver_list_spec$func_to_tool_file_result" + cmds=$old_archive_cmds + else + # the command line is too long to link in one step, link in parts + func_verbose "using piecewise archive linking..." + save_RANLIB=$RANLIB + RANLIB=: + objlist= + concat_cmds= + save_oldobjs=$oldobjs + oldobjs= + # Is there a better way of finding the last object in the list? + for obj in $save_oldobjs + do + last_oldobj=$obj + done + eval test_cmds=\"$old_archive_cmds\" + func_len " $test_cmds" + len0=$func_len_result + len=$len0 + for obj in $save_oldobjs + do + func_len " $obj" + func_arith $len + $func_len_result + len=$func_arith_result + func_append objlist " $obj" + if test "$len" -lt "$max_cmd_len"; then + : + else + # the above command should be used before it gets too long + oldobjs=$objlist + if test "$obj" = "$last_oldobj" ; then + RANLIB=$save_RANLIB + fi + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\" + objlist= + len=$len0 + fi + done + RANLIB=$save_RANLIB + oldobjs=$objlist + if test "X$oldobjs" = "X" ; then + eval cmds=\"\$concat_cmds\" + else + eval cmds=\"\$concat_cmds~\$old_archive_cmds\" + fi + fi + fi + func_execute_cmds "$cmds" 'exit $?' + done + + test -n "$generated" && \ + func_show_eval "${RM}r$generated" + + # Now create the libtool archive. + case $output in + *.la) + old_library= + test "$build_old_libs" = yes && old_library="$libname.$libext" + func_verbose "creating $output" + + # Preserve any variables that may affect compiler behavior + for var in $variables_saved_for_relink; do + if eval test -z \"\${$var+set}\"; then + relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" + elif eval var_value=\$$var; test -z "$var_value"; then + relink_command="$var=; export $var; $relink_command" + else + func_quote_for_eval "$var_value" + relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" + fi + done + # Quote the link command for shipping. + relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)" + relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` + if test "$hardcode_automatic" = yes ; then + relink_command= + fi + + # Only create the output if not a dry run. + $opt_dry_run || { + for installed in no yes; do + if test "$installed" = yes; then + if test -z "$install_libdir"; then + break + fi + output="$output_objdir/$outputname"i + # Replace all uninstalled libtool libraries with the installed ones + newdependency_libs= + for deplib in $dependency_libs; do + case $deplib in + *.la) + func_basename "$deplib" + name="$func_basename_result" + func_resolve_sysroot "$deplib" + eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result` + test -z "$libdir" && \ + func_fatal_error "\`$deplib' is not a valid libtool archive" + func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name" + ;; + -L*) + func_stripname -L '' "$deplib" + func_replace_sysroot "$func_stripname_result" + func_append newdependency_libs " -L$func_replace_sysroot_result" + ;; + -R*) + func_stripname -R '' "$deplib" + func_replace_sysroot "$func_stripname_result" + func_append newdependency_libs " -R$func_replace_sysroot_result" + ;; + *) func_append newdependency_libs " $deplib" ;; + esac + done + dependency_libs="$newdependency_libs" + newdlfiles= + + for lib in $dlfiles; do + case $lib in + *.la) + func_basename "$lib" + name="$func_basename_result" + eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib` + test -z "$libdir" && \ + func_fatal_error "\`$lib' is not a valid libtool archive" + func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name" + ;; + *) func_append newdlfiles " $lib" ;; + esac + done + dlfiles="$newdlfiles" + newdlprefiles= + for lib in $dlprefiles; do + case $lib in + *.la) + # Only pass preopened files to the pseudo-archive (for + # eventual linking with the app. that links it) if we + # didn't already link the preopened objects directly into + # the library: + func_basename "$lib" + name="$func_basename_result" + eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib` + test -z "$libdir" && \ + func_fatal_error "\`$lib' is not a valid libtool archive" + func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name" + ;; + esac + done + dlprefiles="$newdlprefiles" + else + newdlfiles= + for lib in $dlfiles; do + case $lib in + [\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;; + *) abs=`pwd`"/$lib" ;; + esac + func_append newdlfiles " $abs" + done + dlfiles="$newdlfiles" + newdlprefiles= + for lib in $dlprefiles; do + case $lib in + [\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;; + *) abs=`pwd`"/$lib" ;; + esac + func_append newdlprefiles " $abs" + done + dlprefiles="$newdlprefiles" + fi + $RM $output + # place dlname in correct position for cygwin + # In fact, it would be nice if we could use this code for all target + # systems that can't hard-code library paths into their executables + # and that have no shared library path variable independent of PATH, + # but it turns out we can't easily determine that from inspecting + # libtool variables, so we have to hard-code the OSs to which it + # applies here; at the moment, that means platforms that use the PE + # object format with DLL files. See the long comment at the top of + # tests/bindir.at for full details. + tdlname=$dlname + case $host,$output,$installed,$module,$dlname in + *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll) + # If a -bindir argument was supplied, place the dll there. + if test "x$bindir" != x ; + then + func_relative_path "$install_libdir" "$bindir" + tdlname=$func_relative_path_result$dlname + else + # Otherwise fall back on heuristic. + tdlname=../bin/$dlname + fi + ;; + esac + $ECHO > $output "\ +# $outputname - a libtool library file +# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION +# +# Please DO NOT delete this file! +# It is necessary for linking the library. + +# The name that we can dlopen(3). +dlname='$tdlname' + +# Names of this library. +library_names='$library_names' + +# The name of the static archive. +old_library='$old_library' + +# Linker flags that can not go in dependency_libs. +inherited_linker_flags='$new_inherited_linker_flags' + +# Libraries that this one depends upon. +dependency_libs='$dependency_libs' + +# Names of additional weak libraries provided by this library +weak_library_names='$weak_libs' + +# Version information for $libname. +current=$current +age=$age +revision=$revision + +# Is this an already installed library? +installed=$installed + +# Should we warn about portability when linking against -modules? +shouldnotlink=$module + +# Files to dlopen/dlpreopen +dlopen='$dlfiles' +dlpreopen='$dlprefiles' + +# Directory that this library needs to be installed in: +libdir='$install_libdir'" + if test "$installed" = no && test "$need_relink" = yes; then + $ECHO >> $output "\ +relink_command=\"$relink_command\"" + fi + done + } + + # Do a symbolic link so that the libtool archive can be found in + # LD_LIBRARY_PATH before the program is installed. + func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?' + ;; + esac + exit $EXIT_SUCCESS +} + +{ test "$opt_mode" = link || test "$opt_mode" = relink; } && + func_mode_link ${1+"$@"} + + +# func_mode_uninstall arg... +func_mode_uninstall () +{ + $opt_debug + RM="$nonopt" + files= + rmforce= + exit_status=0 + + # This variable tells wrapper scripts just to set variables rather + # than running their programs. + libtool_install_magic="$magic" + + for arg + do + case $arg in + -f) func_append RM " $arg"; rmforce=yes ;; + -*) func_append RM " $arg" ;; + *) func_append files " $arg" ;; + esac + done + + test -z "$RM" && \ + func_fatal_help "you must specify an RM program" + + rmdirs= + + for file in $files; do + func_dirname "$file" "" "." + dir="$func_dirname_result" + if test "X$dir" = X.; then + odir="$objdir" + else + odir="$dir/$objdir" + fi + func_basename "$file" + name="$func_basename_result" + test "$opt_mode" = uninstall && odir="$dir" + + # Remember odir for removal later, being careful to avoid duplicates + if test "$opt_mode" = clean; then + case " $rmdirs " in + *" $odir "*) ;; + *) func_append rmdirs " $odir" ;; + esac + fi + + # Don't error if the file doesn't exist and rm -f was used. + if { test -L "$file"; } >/dev/null 2>&1 || + { test -h "$file"; } >/dev/null 2>&1 || + test -f "$file"; then + : + elif test -d "$file"; then + exit_status=1 + continue + elif test "$rmforce" = yes; then + continue + fi + + rmfiles="$file" + + case $name in + *.la) + # Possibly a libtool archive, so verify it. + if func_lalib_p "$file"; then + func_source $dir/$name + + # Delete the libtool libraries and symlinks. + for n in $library_names; do + func_append rmfiles " $odir/$n" + done + test -n "$old_library" && func_append rmfiles " $odir/$old_library" + + case "$opt_mode" in + clean) + case " $library_names " in + *" $dlname "*) ;; + *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;; + esac + test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i" + ;; + uninstall) + if test -n "$library_names"; then + # Do each command in the postuninstall commands. + func_execute_cmds "$postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1' + fi + + if test -n "$old_library"; then + # Do each command in the old_postuninstall commands. + func_execute_cmds "$old_postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1' + fi + # FIXME: should reinstall the best remaining shared library. + ;; + esac + fi + ;; + + *.lo) + # Possibly a libtool object, so verify it. + if func_lalib_p "$file"; then + + # Read the .lo file + func_source $dir/$name + + # Add PIC object to the list of files to remove. + if test -n "$pic_object" && + test "$pic_object" != none; then + func_append rmfiles " $dir/$pic_object" + fi + + # Add non-PIC object to the list of files to remove. + if test -n "$non_pic_object" && + test "$non_pic_object" != none; then + func_append rmfiles " $dir/$non_pic_object" + fi + fi + ;; + + *) + if test "$opt_mode" = clean ; then + noexename=$name + case $file in + *.exe) + func_stripname '' '.exe' "$file" + file=$func_stripname_result + func_stripname '' '.exe' "$name" + noexename=$func_stripname_result + # $file with .exe has already been added to rmfiles, + # add $file without .exe + func_append rmfiles " $file" + ;; + esac + # Do a test to see if this is a libtool program. + if func_ltwrapper_p "$file"; then + if func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + relink_command= + func_source $func_ltwrapper_scriptname_result + func_append rmfiles " $func_ltwrapper_scriptname_result" + else + relink_command= + func_source $dir/$noexename + fi + + # note $name still contains .exe if it was in $file originally + # as does the version of $file that was added into $rmfiles + func_append rmfiles " $odir/$name $odir/${name}S.${objext}" + if test "$fast_install" = yes && test -n "$relink_command"; then + func_append rmfiles " $odir/lt-$name" + fi + if test "X$noexename" != "X$name" ; then + func_append rmfiles " $odir/lt-${noexename}.c" + fi + fi + fi + ;; + esac + func_show_eval "$RM $rmfiles" 'exit_status=1' + done + + # Try to remove the ${objdir}s in the directories where we deleted files + for dir in $rmdirs; do + if test -d "$dir"; then + func_show_eval "rmdir $dir >/dev/null 2>&1" + fi + done + + exit $exit_status +} + +{ test "$opt_mode" = uninstall || test "$opt_mode" = clean; } && + func_mode_uninstall ${1+"$@"} + +test -z "$opt_mode" && { + help="$generic_help" + func_fatal_help "you must specify a MODE" +} + +test -z "$exec_cmd" && \ + func_fatal_help "invalid operation mode \`$opt_mode'" + +if test -n "$exec_cmd"; then + eval exec "$exec_cmd" + exit $EXIT_FAILURE +fi + +exit $exit_status + + +# The TAGs below are defined such that we never get into a situation +# in which we disable both kinds of libraries. Given conflicting +# choices, we go for a static library, that is the most portable, +# since we can't tell whether shared libraries were disabled because +# the user asked for that or because the platform doesn't support +# them. This is particularly important on AIX, because we don't +# support having both static and shared libraries enabled at the same +# time on that platform, so we default to a shared-only configuration. +# If a disable-shared tag is given, we'll fallback to a static-only +# configuration. But we'll never go from static-only to shared-only. + +# ### BEGIN LIBTOOL TAG CONFIG: disable-shared +build_libtool_libs=no +build_old_libs=yes +# ### END LIBTOOL TAG CONFIG: disable-shared + +# ### BEGIN LIBTOOL TAG CONFIG: disable-static +build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac` +# ### END LIBTOOL TAG CONFIG: disable-static + +# Local Variables: +# mode:shell-script +# sh-indentation:2 +# End: +# vi:sw=2 + diff --git a/shadowsocksr-libev/src/auto/missing b/shadowsocksr-libev/src/auto/missing new file mode 100644 index 000000000..db98974ff --- /dev/null +++ b/shadowsocksr-libev/src/auto/missing @@ -0,0 +1,215 @@ +#! /bin/sh +# Common wrapper for a few potentially missing GNU programs. + +scriptversion=2013-10-28.13; # UTC + +# Copyright (C) 1996-2013 Free Software Foundation, Inc. +# Originally written by Fran,cois Pinard , 1996. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +if test $# -eq 0; then + echo 1>&2 "Try '$0 --help' for more information" + exit 1 +fi + +case $1 in + + --is-lightweight) + # Used by our autoconf macros to check whether the available missing + # script is modern enough. + exit 0 + ;; + + --run) + # Back-compat with the calling convention used by older automake. + shift + ;; + + -h|--h|--he|--hel|--help) + echo "\ +$0 [OPTION]... PROGRAM [ARGUMENT]... + +Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due +to PROGRAM being missing or too old. + +Options: + -h, --help display this help and exit + -v, --version output version information and exit + +Supported PROGRAM values: + aclocal autoconf autoheader autom4te automake makeinfo + bison yacc flex lex help2man + +Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and +'g' are ignored when checking the name. + +Send bug reports to ." + exit $? + ;; + + -v|--v|--ve|--ver|--vers|--versi|--versio|--version) + echo "missing $scriptversion (GNU Automake)" + exit $? + ;; + + -*) + echo 1>&2 "$0: unknown '$1' option" + echo 1>&2 "Try '$0 --help' for more information" + exit 1 + ;; + +esac + +# Run the given program, remember its exit status. +"$@"; st=$? + +# If it succeeded, we are done. +test $st -eq 0 && exit 0 + +# Also exit now if we it failed (or wasn't found), and '--version' was +# passed; such an option is passed most likely to detect whether the +# program is present and works. +case $2 in --version|--help) exit $st;; esac + +# Exit code 63 means version mismatch. This often happens when the user +# tries to use an ancient version of a tool on a file that requires a +# minimum version. +if test $st -eq 63; then + msg="probably too old" +elif test $st -eq 127; then + # Program was missing. + msg="missing on your system" +else + # Program was found and executed, but failed. Give up. + exit $st +fi + +perl_URL=http://www.perl.org/ +flex_URL=http://flex.sourceforge.net/ +gnu_software_URL=http://www.gnu.org/software + +program_details () +{ + case $1 in + aclocal|automake) + echo "The '$1' program is part of the GNU Automake package:" + echo "<$gnu_software_URL/automake>" + echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:" + echo "<$gnu_software_URL/autoconf>" + echo "<$gnu_software_URL/m4/>" + echo "<$perl_URL>" + ;; + autoconf|autom4te|autoheader) + echo "The '$1' program is part of the GNU Autoconf package:" + echo "<$gnu_software_URL/autoconf/>" + echo "It also requires GNU m4 and Perl in order to run:" + echo "<$gnu_software_URL/m4/>" + echo "<$perl_URL>" + ;; + esac +} + +give_advice () +{ + # Normalize program name to check for. + normalized_program=`echo "$1" | sed ' + s/^gnu-//; t + s/^gnu//; t + s/^g//; t'` + + printf '%s\n' "'$1' is $msg." + + configure_deps="'configure.ac' or m4 files included by 'configure.ac'" + case $normalized_program in + autoconf*) + echo "You should only need it if you modified 'configure.ac'," + echo "or m4 files included by it." + program_details 'autoconf' + ;; + autoheader*) + echo "You should only need it if you modified 'acconfig.h' or" + echo "$configure_deps." + program_details 'autoheader' + ;; + automake*) + echo "You should only need it if you modified 'Makefile.am' or" + echo "$configure_deps." + program_details 'automake' + ;; + aclocal*) + echo "You should only need it if you modified 'acinclude.m4' or" + echo "$configure_deps." + program_details 'aclocal' + ;; + autom4te*) + echo "You might have modified some maintainer files that require" + echo "the 'autom4te' program to be rebuilt." + program_details 'autom4te' + ;; + bison*|yacc*) + echo "You should only need it if you modified a '.y' file." + echo "You may want to install the GNU Bison package:" + echo "<$gnu_software_URL/bison/>" + ;; + lex*|flex*) + echo "You should only need it if you modified a '.l' file." + echo "You may want to install the Fast Lexical Analyzer package:" + echo "<$flex_URL>" + ;; + help2man*) + echo "You should only need it if you modified a dependency" \ + "of a man page." + echo "You may want to install the GNU Help2man package:" + echo "<$gnu_software_URL/help2man/>" + ;; + makeinfo*) + echo "You should only need it if you modified a '.texi' file, or" + echo "any other file indirectly affecting the aspect of the manual." + echo "You might want to install the Texinfo package:" + echo "<$gnu_software_URL/texinfo/>" + echo "The spurious makeinfo call might also be the consequence of" + echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might" + echo "want to install GNU make:" + echo "<$gnu_software_URL/make/>" + ;; + *) + echo "You might have modified some files without having the proper" + echo "tools for further handling them. Check the 'README' file, it" + echo "often tells you about the needed prerequisites for installing" + echo "this package. You may also peek at any GNU archive site, in" + echo "case some other package contains this missing '$1' program." + ;; + esac +} + +give_advice "$1" | sed -e '1s/^/WARNING: /' \ + -e '2,$s/^/ /' >&2 + +# Propagate the correct exit status (expected to be 127 for a program +# not found, 63 for a program that failed due to version mismatch). +exit $st + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC" +# time-stamp-end: "; # UTC" +# End: diff --git a/shadowsocksr-libev/src/autogen.sh b/shadowsocksr-libev/src/autogen.sh new file mode 100644 index 000000000..01db361f2 --- /dev/null +++ b/shadowsocksr-libev/src/autogen.sh @@ -0,0 +1,3 @@ +#!/bin/sh + +autoreconf --install --force diff --git a/shadowsocksr-libev/src/cmake/CheckDIRSymbolExists.cmake b/shadowsocksr-libev/src/cmake/CheckDIRSymbolExists.cmake new file mode 100644 index 000000000..1fae81437 --- /dev/null +++ b/shadowsocksr-libev/src/cmake/CheckDIRSymbolExists.cmake @@ -0,0 +1,75 @@ +# - Check if the DIR symbol exists like in AC_HEADER_DIRENT. +# CHECK_DIRSYMBOL_EXISTS(FILES VARIABLE) +# +# FILES - include files to check +# VARIABLE - variable to return result +# +# This module is a small but important variation on CheckSymbolExists.cmake. +# The symbol always searched for is DIR, and the test programme follows +# the AC_HEADER_DIRENT test programme rather than the CheckSymbolExists.cmake +# test programme which always fails since DIR tends to be typedef'd +# rather than #define'd. +# +# The following variables may be set before calling this macro to +# modify the way the check is run: +# +# CMAKE_REQUIRED_FLAGS = string of compile command line flags +# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar) +# CMAKE_REQUIRED_INCLUDES = list of include directories +# CMAKE_REQUIRED_LIBRARIES = list of libraries to link + +MACRO(CHECK_DIRSYMBOL_EXISTS FILES VARIABLE) + IF(NOT DEFINED ${VARIABLE}) + SET(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n") + SET(MACRO_CHECK_DIRSYMBOL_EXISTS_FLAGS ${CMAKE_REQUIRED_FLAGS}) + IF(CMAKE_REQUIRED_LIBRARIES) + SET(CHECK_DIRSYMBOL_EXISTS_LIBS + "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}") + ELSE(CMAKE_REQUIRED_LIBRARIES) + SET(CHECK_DIRSYMBOL_EXISTS_LIBS) + ENDIF(CMAKE_REQUIRED_LIBRARIES) + IF(CMAKE_REQUIRED_INCLUDES) + SET(CMAKE_DIRSYMBOL_EXISTS_INCLUDES + "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}") + ELSE(CMAKE_REQUIRED_INCLUDES) + SET(CMAKE_DIRSYMBOL_EXISTS_INCLUDES) + ENDIF(CMAKE_REQUIRED_INCLUDES) + FOREACH(FILE ${FILES}) + SET(CMAKE_CONFIGURABLE_FILE_CONTENT + "${CMAKE_CONFIGURABLE_FILE_CONTENT}#include <${FILE}>\n") + ENDFOREACH(FILE) + SET(CMAKE_CONFIGURABLE_FILE_CONTENT + "${CMAKE_CONFIGURABLE_FILE_CONTENT}\nint main()\n{if ((DIR *) 0) return 0;}\n") + + CONFIGURE_FILE("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in" + "${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckDIRSymbolExists.c" @ONLY) + + MESSAGE(STATUS "Looking for DIR in ${FILES}") + TRY_COMPILE(${VARIABLE} + ${CMAKE_BINARY_DIR} + ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckDIRSymbolExists.c + COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} + CMAKE_FLAGS + -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_DIRSYMBOL_EXISTS_FLAGS} + "${CHECK_DIRSYMBOL_EXISTS_LIBS}" + "${CMAKE_DIRSYMBOL_EXISTS_INCLUDES}" + OUTPUT_VARIABLE OUTPUT) + IF(${VARIABLE}) + MESSAGE(STATUS "Looking for DIR in ${FILES} - found") + SET(${VARIABLE} 1 CACHE INTERNAL "Have symbol DIR") + FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log + "Determining if the DIR symbol is defined as in AC_HEADER_DIRENT " + "passed with the following output:\n" + "${OUTPUT}\nFile ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckDIRSymbolExists.c:\n" + "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n") + ELSE(${VARIABLE}) + MESSAGE(STATUS "Looking for DIR in ${FILES} - not found.") + SET(${VARIABLE} "" CACHE INTERNAL "Have symbol DIR") + FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log + "Determining if the DIR symbol is defined as in AC_HEADER_DIRENT " + "failed with the following output:\n" + "${OUTPUT}\nFile ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckDIRSymbolExists.c:\n" + "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n") + ENDIF(${VARIABLE}) + ENDIF(NOT DEFINED ${VARIABLE}) +ENDMACRO(CHECK_DIRSYMBOL_EXISTS) diff --git a/shadowsocksr-libev/src/cmake/CheckPrototypeExists.cmake b/shadowsocksr-libev/src/cmake/CheckPrototypeExists.cmake new file mode 100644 index 000000000..2baad8828 --- /dev/null +++ b/shadowsocksr-libev/src/cmake/CheckPrototypeExists.cmake @@ -0,0 +1,41 @@ +# - Check if the prototype for a function exists. +# CHECK_PROTOTYPE_EXISTS (FUNCTION HEADER VARIABLE) +# +# FUNCTION - the name of the function you are looking for +# HEADER - the header(s) where the prototype should be declared +# VARIABLE - variable to store the result +# +# The following variables may be set before calling this macro to +# modify the way the check is run: +# +# CMAKE_REQUIRED_FLAGS = string of compile command line flags +# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar) +# CMAKE_REQUIRED_INCLUDES = list of include directories + +# Copyright (c) 2006, Alexander Neundorf, +# +# Redistribution and use is allowed according to the terms of the BSD license. +# For details see the accompanying COPYING-CMAKE-SCRIPTS file. + + +INCLUDE(CheckCSourceCompiles) + +MACRO (CHECK_PROTOTYPE_EXISTS _SYMBOL _HEADER _RESULT) + SET(_INCLUDE_FILES) + FOREACH (it ${_HEADER}) + SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n") + ENDFOREACH (it) + + SET(_CHECK_PROTO_EXISTS_SOURCE_CODE " +${_INCLUDE_FILES} +int main() +{ +#ifndef ${_SYMBOL} + int i = sizeof(&${_SYMBOL}); +#endif + return 0; +} +") + + CHECK_C_SOURCE_COMPILES("${_CHECK_PROTO_EXISTS_SOURCE_CODE}" ${_RESULT}) +ENDMACRO (CHECK_PROTOTYPE_EXISTS _SYMBOL _HEADER _RESULT) diff --git a/shadowsocksr-libev/src/cmake/CheckSTDC.cmake b/shadowsocksr-libev/src/cmake/CheckSTDC.cmake new file mode 100644 index 000000000..5605893af --- /dev/null +++ b/shadowsocksr-libev/src/cmake/CheckSTDC.cmake @@ -0,0 +1,37 @@ +message(STATUS "Checking whether system has ANSI C header files") +include(CheckPrototypeExists) +include(CheckIncludeFiles) + +check_include_files("dlfcn.h;stdint.h;stddef.h;inttypes.h;stdlib.h;strings.h;string.h;float.h" StandardHeadersExist) +if(StandardHeadersExist) + check_prototype_exists(memchr string.h memchrExists) + if(memchrExists) + check_prototype_exists(free stdlib.h freeExists) + if(freeExists) + message(STATUS "ANSI C header files - found") + set(STDC_HEADERS 1 CACHE INTERNAL "System has ANSI C header files") + set(HAVE_STRINGS_H 1) + set(HAVE_STRING_H 1) + set(HAVE_FLOAT_H 1) + set(HAVE_STDLIB_H 1) + set(HAVE_STDDEF_H 1) + set(HAVE_STDINT_H 1) + set(HAVE_INTTYPES_H 1) + set(HAVE_DLFCN_H 1) + endif(freeExists) + endif(memchrExists) +endif(StandardHeadersExist) + +if(NOT STDC_HEADERS) + message(STATUS "ANSI C header files - not found") + set(STDC_HEADERS 0 CACHE INTERNAL "System has ANSI C header files") +endif(NOT STDC_HEADERS) + +check_include_files(unistd.h HAVE_UNISTD_H) + +include(CheckDIRSymbolExists) +check_dirsymbol_exists("sys/stat.h;sys/types.h;dirent.h" HAVE_DIRENT_H) +if (HAVE_DIRENT_H) + set(HAVE_SYS_STAT_H 1) + set(HAVE_SYS_TYPES_H 1) +endif (HAVE_DIRENT_H) diff --git a/shadowsocksr-libev/src/cmake/FindPCRE.cmake b/shadowsocksr-libev/src/cmake/FindPCRE.cmake new file mode 100644 index 000000000..0f5bbfef5 --- /dev/null +++ b/shadowsocksr-libev/src/cmake/FindPCRE.cmake @@ -0,0 +1,158 @@ +#.rst: +# FindPCRE +# -------- +# +# Find the native PCRE includes and library. +# +# IMPORTED Targets +# ^^^^^^^^^^^^^^^^ +# +# This module defines :prop_tgt:`IMPORTED` target ``PCRE::PCRE``, if +# PCRE has been found. +# +# Result Variables +# ^^^^^^^^^^^^^^^^ +# +# This module defines the following variables: +# +# :: +# +# PCRE_INCLUDE_DIRS - where to find pcre.h, etc. +# PCRE_LIBRARIES - List of libraries when using pcre. +# PCRE_FOUND - True if pcre found. +# +# :: +# +# PCRE_VERSION_STRING - The version of pcre found (x.y.z) +# PCRE_VERSION_MAJOR - The major version of zlib +# PCRE_VERSION_MINOR - The minor version of zlib +# PCRE_VERSION_PATCH - The patch version of zlib +# PCRE_VERSION_TWEAK - The tweak version of zlib +# +# Backward Compatibility +# ^^^^^^^^^^^^^^^^^^^^^^ +# +# The following variable are provided for backward compatibility +# +# :: +# +# PCRE_MAJOR_VERSION - The major version of zlib +# PCRE_MINOR_VERSION - The minor version of zlib +# PCRE_PATCH_VERSION - The patch version of zlib +# +# Hints +# ^^^^^ +# +# A user may set ``PCRE_ROOT`` to a zlib installation root to tell this +# module where to look. + +#============================================================================= +# Copyright 2001-2011 Kitware, Inc. +# +# Distributed under the OSI-approved BSD License (the "License"); +# see accompanying file Copyright.txt for details. +# +# This software is distributed WITHOUT ANY WARRANTY; without even the +# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +# See the License for more information. +#============================================================================= +# (To distribute this file outside of CMake, substitute the full +# License text for the above reference.) + +set(_PCRE_SEARCHES) + +# Search PCRE_ROOT first if it is set. +if(PCRE_ROOT) + set(_PCRE_SEARCH_ROOT PATHS ${PCRE_ROOT} NO_DEFAULT_PATH) + list(APPEND _PCRE_SEARCHES _PCRE_SEARCH_ROOT) +endif() + +# Normal search. +set(_PCRE_SEARCH_NORMAL + PATHS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\Pcre;InstallPath]" + "$ENV{PROGRAMFILES}/pcre" + ) +list(APPEND _PCRE_SEARCHES _PCRE_SEARCH_NORMAL) + +set(PCRE_NAMES pcre pcredll) +set(PCRE_NAMES_DEBUG pcred) + +# Try each search configuration. +foreach(search ${_PCRE_SEARCHES}) + find_path(PCRE_INCLUDE_DIR NAMES pcre.h ${${search}} PATH_SUFFIXES include) +endforeach() + +# Allow PCRE_LIBRARY to be set manually, as the location of the pcre library +if(NOT PCRE_LIBRARY) + foreach(search ${_PCRE_SEARCHES}) + find_library(PCRE_LIBRARY_RELEASE NAMES ${PCRE_NAMES} ${${search}} PATH_SUFFIXES lib) + find_library(PCRE_LIBRARY_DEBUG NAMES ${PCRE_NAMES_DEBUG} ${${search}} PATH_SUFFIXES lib) + endforeach() + + include(SelectLibraryConfigurations) + select_library_configurations(PCRE) +endif() + +unset(PCRE_NAMES) +unset(PCRE_NAMES_DEBUG) + +mark_as_advanced(PCRE_LIBRARY PCRE_INCLUDE_DIR) + +if(PCRE_INCLUDE_DIR AND EXISTS "${PCRE_INCLUDE_DIR}/pcre.h") + file(STRINGS "${PCRE_INCLUDE_DIR}/pcre.h" PCRE_H REGEX "^#define PCRE_VERSION \"[^\"]*\"$") + + string(REGEX REPLACE "^.*PCRE_VERSION \"([0-9]+).*$" "\\1" PCRE_VERSION_MAJOR "${PCRE_H}") + string(REGEX REPLACE "^.*PCRE_VERSION \"[0-9]+\\.([0-9]+).*$" "\\1" PCRE_VERSION_MINOR "${PCRE_H}") + string(REGEX REPLACE "^.*PCRE_VERSION \"[0-9]+\\.[0-9]+\\.([0-9]+).*$" "\\1" PCRE_VERSION_PATCH "${PCRE_H}") + set(PCRE_VERSION_STRING "${PCRE_VERSION_MAJOR}.${PCRE_VERSION_MINOR}.${PCRE_VERSION_PATCH}") + + # only append a TWEAK version if it exists: + set(PCRE_VERSION_TWEAK "") + if( "${PCRE_H}" MATCHES "PCRE_VERSION \"[0-9]+\\.[0-9]+\\.[0-9]+\\.([0-9]+)") + set(PCRE_VERSION_TWEAK "${CMAKE_MATCH_1}") + set(PCRE_VERSION_STRING "${PCRE_VERSION_STRING}.${PCRE_VERSION_TWEAK}") + endif() + + set(PCRE_MAJOR_VERSION "${PCRE_VERSION_MAJOR}") + set(PCRE_MINOR_VERSION "${PCRE_VERSION_MINOR}") + set(PCRE_PATCH_VERSION "${PCRE_VERSION_PATCH}") +endif() + +# handle the QUIETLY and REQUIRED arguments and set PCRE_FOUND to TRUE if +# all listed variables are TRUE +include(FindPackageHandleStandardArgs) +FIND_PACKAGE_HANDLE_STANDARD_ARGS(PCRE REQUIRED_VARS PCRE_LIBRARY PCRE_INCLUDE_DIR + VERSION_VAR PCRE_VERSION_STRING) + +if(PCRE_FOUND) + set(PCRE_INCLUDE_DIRS ${PCRE_INCLUDE_DIR}) + + if(NOT PCRE_LIBRARIES) + set(PCRE_LIBRARIES ${PCRE_LIBRARY}) + endif() + + if(NOT TARGET PCRE::PCRE) + add_library(PCRE::PCRE UNKNOWN IMPORTED) + set_target_properties(PCRE::PCRE PROPERTIES + INTERFACE_INCLUDE_DIRECTORIES "${PCRE_INCLUDE_DIRS}") + + if(PCRE_LIBRARY_RELEASE) + set_property(TARGET PCRE::PCRE APPEND PROPERTY + IMPORTED_CONFIGURATIONS RELEASE) + set_target_properties(PCRE::PCRE PROPERTIES + IMPORTED_LOCATION_RELEASE "${PCRE_LIBRARY_RELEASE}") + endif() + + if(PCRE_LIBRARY_DEBUG) + set_property(TARGET PCRE::PCRE APPEND PROPERTY + IMPORTED_CONFIGURATIONS DEBUG) + set_target_properties(PCRE::PCRE PROPERTIES + IMPORTED_LOCATION_DEBUG "${PCRE_LIBRARY_DEBUG}") + endif() + + if(NOT PCRE_LIBRARY_RELEASE AND NOT PCRE_LIBRARY_DEBUG) + set_property(TARGET PCRE::PCRE APPEND PROPERTY + IMPORTED_LOCATION "${PCRE_LIBRARY}") + endif() + endif() +endif() diff --git a/shadowsocksr-libev/src/cmake/configure.cmake b/shadowsocksr-libev/src/cmake/configure.cmake new file mode 100644 index 000000000..eaf534932 --- /dev/null +++ b/shadowsocksr-libev/src/cmake/configure.cmake @@ -0,0 +1,197 @@ +# Build args + +if (${with_crypto_library} STREQUAL "openssl") + find_package(ZLIB REQUIRED) + find_package(OpenSSL REQUIRED) + set(USE_CRYPTO_OPENSSL 1) + set(LIBCRYPTO + ${ZLIB_LIBRARIES} + ${OPENSSL_CRYPTO_LIBRARY}) + + include_directories(${ZLIB_INCLUDE_DIR}) + include_directories(${OPENSSL_INCLUDE_DIR}) + + list ( APPEND CMAKE_REQUIRED_INCLUDES ${ZLIB_INCLUDE_DIR} ${OPENSSL_INCLUDE_DIR}) + +elseif(${with_crypto_library} STREQUAL "polarssl") + find_package(polarssl REQUIRED) + set(USE_CRYPTO_POLARSSL 1) +elseif(${with_crypto_library} STREQUAL "mbedtls") + find_package(mbedtls REQUIRED) + set(USE_CRYPTO_MBEDTLS 1) +endif() + +find_package(PCRE REQUIRED) +include_directories(${PCRE_INCLUDE_DIR}) +list ( APPEND CMAKE_REQUIRED_INCLUDES ${PCRE_INCLUDE_DIR}) + + +# Platform checks +include ( CheckFunctionExists ) +include ( CheckIncludeFiles ) +include ( CheckSymbolExists ) +include ( CheckCSourceCompiles ) +include ( CheckTypeSize ) +include ( CheckSTDC ) + +check_include_files ( "arpa/inet.h" HAVE_ARPA_INET_H ) +check_include_files ( "CommonCrypto/CommonCrypto.h" HAVE_COMMONCRYPTO_COMMONCRYPTO_H ) +check_include_files ( dlfcn.h HAVE_DLFCN_H ) +check_include_files ( fcntl.h HAVE_FCNTL_H ) +check_include_files ( inttypes.h HAVE_INTTYPES_H ) +check_include_files ( langinfo.h HAVE_LANGINFO_H ) +check_include_files ( limits.h HAVE_LIMITS_H ) +check_include_files ( "linux/if.h" HAVE_LINUX_IF_H ) +check_include_files ( "linux/netfilter_ipv4.h" HAVE_LINUX_NETFILTER_IPV4_H ) +check_include_files ( "linux/netfilter_ipv6/ip6_tables.h" HAVE_LINUX_NETFILTER_IPV6_IP6_TABLES_H ) +check_include_files ( locale.h HAVE_LOCALE_H ) +check_include_files ( memory.h HAVE_MEMORY_H ) +check_include_files ( netdb.h HAVE_NETDB_H ) +check_include_files ( "net/if.h" HAVE_NET_IF_H ) +check_include_files ( "openssl/engine.h" HAVE_OPENSSL_ENGINE_H ) +check_include_files ( "openssl/err.h" HAVE_OPENSSL_ERR_H ) +check_include_files ( "openssl/evp.h" HAVE_OPENSSL_EVP_H ) +check_include_files ( "openssl/pem.h" HAVE_OPENSSL_PEM_H ) +check_include_files ( "openssl/rand.h" HAVE_OPENSSL_RAND_H ) +check_include_files ( "openssl/rsa.h" HAVE_OPENSSL_RSA_H ) +check_include_files ( "openssl/sha.h" HAVE_OPENSSL_SHA_H ) +check_include_files ( pcre.h HAVE_PCRE_H ) +check_include_files ( "pcre/pcre.h" HAVE_PCRE_PCRE_H ) +check_include_files ( poll.h HAVE_POLL_H ) +check_include_files ( port.h HAVE_PORT_H ) +check_include_files ( stdint.h HAVE_STDINT_H ) +check_include_files ( stdlib.h HAVE_STDLIB_H ) +check_include_files ( strings.h HAVE_STRINGS_H ) +check_include_files ( string.h HAVE_STRING_H ) +check_include_files ( "sys/epoll.h" HAVE_SYS_EPOLL_H ) +check_include_files ( "sys/eventfd.h" HAVE_SYS_EVENTFD_H ) +check_include_files ( "sys/event.h" HAVE_SYS_EVENT_H ) +check_include_files ( "sys/inotify.h" HAVE_SYS_INOTIFY_H ) +check_include_files ( "sys/ioctl.h" HAVE_SYS_IOCTL_H ) +check_include_files ( "sys/select.h" HAVE_SYS_SELECT_H ) +check_include_files ( "sys/signalfd.h" HAVE_SYS_SIGNALFD_H ) +check_include_files ( "sys/socket.h" HAVE_SYS_SOCKET_H ) +check_include_files ( "sys/stat.h" HAVE_SYS_STAT_H ) +check_include_files ( "sys/types.h" HAVE_SYS_TYPES_H ) +check_include_files ( "sys/wait.h" HAVE_SYS_WAIT_H ) +check_include_files ( unistd.h HAVE_UNISTD_H ) +check_include_files ( vfork.h HAVE_VFORK_H ) +check_include_files ( windows.h HAVE_WINDOWS_H ) +check_include_files ( winsock2.h HAVE_WINSOCK2_H ) +check_include_files ( ws2tcpip.h HAVE_WS2TCPIP_H ) +check_include_files ( zlib.h HAVE_ZLIB_H ) +check_include_files ( "sys/syscall.h" HAVE_SYS_CALL_H ) +check_include_files ( "minix/config.h" _MINIX) + +check_function_exists ( CCCryptorCreateWithMode HAVE_CCCRYPTORCREATEWITHMODE ) +check_function_exists ( clock_gettime HAVE_CLOCK_GETTIME ) +check_function_exists ( epoll_ctl HAVE_EPOLL_CTL ) +check_function_exists ( eventfd HAVE_EVENTFD ) +check_function_exists ( EVP_EncryptInit_ex HAVE_EVP_ENCRYPTINIT_EX ) +check_function_exists ( floor HAVE_FLOOR ) +check_function_exists ( fork HAVE_FORK ) +check_function_exists ( getpwnam_r HAVE_GETPWNAM_R ) +check_function_exists ( inet_ntop HAVE_INET_NTOP ) +check_function_exists ( inotify_init HAVE_INOTIFY_INIT ) +check_function_exists ( kqueue HAVE_KQUEUE ) +check_function_exists ( malloc HAVE_MALLOC ) +check_function_exists ( memset HAVE_MEMSET ) +check_function_exists ( nanosleep HAVE_NANOSLEEP ) +check_function_exists ( poll HAVE_POLL ) +check_function_exists ( port_create HAVE_PORT_CREATE ) +check_function_exists ( RAND_pseudo_bytes HAVE_RAND_PSEUDO_BYTES ) +check_function_exists ( select HAVE_SELECT ) +check_function_exists ( setresuid HAVE_SETRESUID ) +check_function_exists ( setreuid HAVE_SETREUID ) +check_function_exists ( setrlimit HAVE_SETRLIMIT ) +check_function_exists ( signalfd HAVE_SIGNALFD ) +check_function_exists ( socket HAVE_SOCKET ) +check_function_exists ( strerror HAVE_STRERROR ) +check_function_exists ( vfork HAVE_VFORK ) +check_function_exists ( inet_ntop HAVE_DECL_INET_NTOP ) + +check_symbol_exists ( PTHREAD_PRIO_INHERIT "pthread.h" HAVE_PTHREAD_PRIO_INHERIT ) +check_symbol_exists ( PTHREAD_CREATE_JOINABLE "pthread.h" HAVE_PTHREAD_CREATE_JOINABLE ) +check_symbol_exists ( EINPROGRESS "sys/errno.h" HAVE_EINPROGRESS ) +check_symbol_exists ( WSAEWOULDBLOCK "winerror.h" HAVE_WSAEWOULDBLOCK ) + +# winsock2.h and ws2_32 should provide these +if(HAVE_WINSOCK2_H) + set(HAVE_GETHOSTNAME ON) + set(HAVE_SELECT ON) + set(HAVE_SOCKET ON) + set(HAVE_INET_NTOA ON) + set(HAVE_RECV ON) + set(HAVE_SEND ON) + set(HAVE_RECVFROM ON) + set(HAVE_SENDTO ON) + set(HAVE_GETHOSTBYNAME ON) + set(HAVE_GETSERVBYNAME ON) +else(HAVE_WINSOCK2_H) + check_function_exists(gethostname HAVE_GETHOSTNAME) + check_function_exists(select HAVE_SELECT) + check_function_exists(socket HAVE_SOCKET) + check_function_exists(inet_ntoa HAVE_INET_NTOA) + check_function_exists(recv HAVE_RECV) + check_function_exists(send HAVE_SEND) + check_function_exists(recvfrom HAVE_RECVFROM) + check_function_exists(sendto HAVE_SENDTO) + check_function_exists(gethostbyname HAVE_GETHOSTBYNAME) + check_function_exists(getservbyname HAVE_GETSERVBYNAME) +endif(HAVE_WINSOCK2_H) + +find_library ( HAVE_LIBPCRE pcre ) +find_library ( HAVE_LIBRT rt ) +find_library ( HAVE_LIBSOCKET socket ) + +check_c_source_compiles( + " +#include +#include +int main(int argc, char** argv) {return 0;} +" + TIME_WITH_SYS_TIME +) + +check_c_source_compiles(" +__thread int tls; + +int main(void) { + return 0; +}" TLS) + +check_type_size(pid_t PID_T) + +# Tweaks +if (${HAVE_SYS_CALL_H}) + set(HAVE_CLOCK_SYSCALL ${HAVE_CLOCK_GETTIME}) +endif () +if (ZLIB_FOUND) + set (HAVE_ZLIB 1) +endif() + +if (NOT HAVE_DECL_INET_NTOP) + set(HAVE_DECL_INET_NTOP 0) +endif() +if (NOT HAVE_PTHREAD_CREATE_JOINABLE) + set (PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED) +endif() +if (${_MINIX}) + set (_POSIX_1_SOURCE 2) + set (_POSIX_SOURCE 1) +endif() + +if (${HAVE_EINPROGRESS}) + set (CONNECT_IN_PROGRESS EINPROGRESS) +elseif(${HAVE_WSAEWOULDBLOCK}) + set (CONNECT_IN_PROGRESS WSAEWOULDBLOCK) +endif() + +#SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99") + + + +set (HAVE_IPv6 1) + +ADD_DEFINITIONS(-DHAVE_CONFIG_H) +ADD_DEFINITIONS(-D__USE_MINGW_ANSI_STDIO=1) diff --git a/shadowsocksr-libev/src/cmake/dist.cmake b/shadowsocksr-libev/src/cmake/dist.cmake new file mode 100644 index 000000000..eddf6fad5 --- /dev/null +++ b/shadowsocksr-libev/src/cmake/dist.cmake @@ -0,0 +1,20 @@ +# LuaDist CMake utility library. +# Provides sane project defaults and macros common to LuaDist CMake builds. +# +# Copyright (C) 2007-2012 LuaDist. +# by David Manura, Peter Drahoš +# Redistribution and use of this file is allowed according to the terms of the MIT license. +# For details see the COPYRIGHT file distributed with LuaDist. +# Please note that the package source code is licensed under its own license. + + +# Tweaks and other defaults +# Setting CMAKE to use loose block and search for find modules in source directory +set ( CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true ) +set ( CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH} ) + +# In MSVC, prevent warnings that can occur when using standard libraries. +if ( MSVC ) + add_definitions ( -D_CRT_SECURE_NO_WARNINGS ) +endif () + diff --git a/shadowsocksr-libev/src/completions/bash/ss-local b/shadowsocksr-libev/src/completions/bash/ss-local new file mode 100644 index 000000000..96fec2e2b --- /dev/null +++ b/shadowsocksr-libev/src/completions/bash/ss-local @@ -0,0 +1,33 @@ +_ss_local() +{ + local cur prev opts ciphers + opts='-s -b -p -k -f -t -m -c -a -n -u -U -v -h -A --fast-open --mtu --help --mptcp -i --acl -l' + ciphers='rc4-md5 table rc4 aes-128-cfb aes-192-cfb aes-256-cfb aes-128-ctr aes-192-ctr aes-256-ctr bf-cfb camellia-128-cfb camellia-192-cfb camellia-256-cfb cast5-cfb des-cfb idea-cfb rc2-cfb seed-cfb salsa20 chacha20 and chacha20-ietf' + cur=${COMP_WORDS[COMP_CWORD]} + prev="${COMP_WORDS[COMP_CWORD-1]}" + case "$prev" in + -c|-f|--acl) + _filedir || COMPREPLY=( $(compgen -o plusdirs -f ${cur}) ) + ;; + -s|-b) + _known_hosts_real -- "${cur}" || OMPREPLY=( $(compgen -A hostname -- ${cur}) ) + ;; + -m) + COMPREPLY=( $(compgen -W "$ciphers" -- ${cur}) ) + ;; + -a) + _allowed_users || COMPREPLY=( $(compgen -u -- ${cur}) ) + ;; + -p|-k|-t|-n|--mtu|-l) + ;; + -i) + _available_interfaces -a || true + ;; + *) + COMPREPLY+=( $(compgen -W "${opts}" -- ${cur}) ) + ;; + esac + return 0 +} + +complete -F _ss_local ss-local diff --git a/shadowsocksr-libev/src/completions/bash/ss-manager b/shadowsocksr-libev/src/completions/bash/ss-manager new file mode 100644 index 000000000..cfe941ed3 --- /dev/null +++ b/shadowsocksr-libev/src/completions/bash/ss-manager @@ -0,0 +1,41 @@ +_ss_manager() +{ + local cur prev opts ciphers + opts='-s -b -p -k -f -t -m -c -a -n -u -U -v -h -A --mtu --help --mptcp -i -l --manager-address --executable' + ciphers='rc4-md5 table rc4 aes-128-cfb aes-192-cfb aes-256-cfb aes-128-ctr aes-192-ctr aes-256-ctr bf-cfb camellia-128-cfb camellia-192-cfb camellia-256-cfb cast5-cfb des-cfb idea-cfb rc2-cfb seed-cfb salsa20 chacha20 and chacha20-ietf' + cur=${COMP_WORDS[COMP_CWORD]} + prev="${COMP_WORDS[COMP_CWORD-1]}" + case "$prev" in + -c|-f|--executable) + _filedir || COMPREPLY=( $(compgen -o plusdirs -f ${cur}) ) + ;; + -s|-b) + _known_hosts_real -- "${cur}" || OMPREPLY=( $(compgen -A hostname -- ${cur}) ) + ;; + -L) + compopt -o nospace + _known_hosts_real -c -- "${cur}" || OMPREPLY=( $(compgen -A hostname -S : -- ${cur}) ) + ;; + -m) + COMPREPLY=( $(compgen -W "$ciphers" -- ${cur}) ) + ;; + -a) + _allowed_users || COMPREPLY=( $(compgen -u -- ${cur}) ) + ;; + -p|-k|-t|-n|--mtu|-l) + ;; + -i) + _available_interfaces -a || true + ;; + --manager-address) + _known_hosts_real -- "${cur}" || OMPREPLY=( $(compgen -A hostname -- ${cur}) ) + _filedir || COMPREPLY+=( $(compgen -o plusdirs -f ${cur}) ) + ;; + *) + COMPREPLY+=( $(compgen -W "${opts}" -- ${cur}) ) + ;; + esac + return 0 +} + +complete -F _ss_manager ss-manager diff --git a/shadowsocksr-libev/src/completions/bash/ss-redir b/shadowsocksr-libev/src/completions/bash/ss-redir new file mode 100644 index 000000000..86f550016 --- /dev/null +++ b/shadowsocksr-libev/src/completions/bash/ss-redir @@ -0,0 +1,30 @@ +_ss_redir() +{ + local cur prev opts ciphers + ciphers='rc4-md5 table rc4 aes-128-cfb aes-192-cfb aes-256-cfb aes-128-ctr aes-192-ctr aes-256-ctr bf-cfb camellia-128-cfb camellia-192-cfb camellia-256-cfb cast5-cfb des-cfb idea-cfb rc2-cfb seed-cfb salsa20 chacha20 and chacha20-ietf' + opts='-s -b -p -k -f -t -m -c -a -n -u -U -v -h -A --mtu --help --mptcp -l' + cur=${COMP_WORDS[COMP_CWORD]} + prev="${COMP_WORDS[COMP_CWORD-1]}" + case "$prev" in + -c|-f) + _filedir || COMPREPLY=( $(compgen -o plusdirs -f ${cur}) ) + ;; + -s|-b) + _known_hosts_real -- "${cur}" || OMPREPLY=( $(compgen -A hostname -- ${cur}) ) + ;; + -m) + COMPREPLY=( $(compgen -W "$ciphers" -- ${cur}) ) + ;; + -a) + _allowed_users || COMPREPLY=( $(compgen -u -- ${cur}) ) + ;; + -p|-k|-t|-n|--mtu|-l) + ;; + *) + COMPREPLY+=( $(compgen -W "${opts}" -- ${cur}) ) + ;; + esac + return 0 +} + +complete -F _ss_redir ss-redir diff --git a/shadowsocksr-libev/src/completions/bash/ss-server b/shadowsocksr-libev/src/completions/bash/ss-server new file mode 100644 index 000000000..8d089c5a7 --- /dev/null +++ b/shadowsocksr-libev/src/completions/bash/ss-server @@ -0,0 +1,37 @@ +_ss_server() +{ + local cur prev opts ciphers + opts='-s -b -p -k -f -t -m -c -a -n -u -U -v -h -A --fast-open --mtu --help --mptcp -i -6 -d --manager-address --firewall --acl' + ciphers='rc4-md5 table rc4 aes-128-cfb aes-192-cfb aes-256-cfb aes-128-ctr aes-192-ctr aes-256-ctr bf-cfb camellia-128-cfb camellia-192-cfb camellia-256-cfb cast5-cfb des-cfb idea-cfb rc2-cfb seed-cfb salsa20 chacha20 and chacha20-ietf' + COMPREPLY=() + cur=${COMP_WORDS[COMP_CWORD]} + prev="${COMP_WORDS[COMP_CWORD-1]}" + case "$prev" in + -c|-f|--acl) + _filedir || COMPREPLY=( $(compgen -o plusdirs -f ${cur}) ) + ;; + -s|-b) + _known_hosts_real -- "${cur}" || OMPREPLY=( $(compgen -A hostname -- ${cur}) ) + ;; + -m) + COMPREPLY=( $(compgen -W "$ciphers" -- ${cur}) ) + ;; + -a) + _allowed_users || COMPREPLY=( $(compgen -u -- ${cur}) ) + ;; + -p|-k|-t|-n|--mtu|-d) + ;; + --manager-address) + _known_hosts_real -- "${cur}" || OMPREPLY=( $(compgen -A hostname -- ${cur}) ) + _filedir || COMPREPLY+=( $(compgen -o plusdirs -f ${cur}) ) + ;; + -i) + _available_interfaces -a || true + ;; + *) + COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) ) + ;; + esac +} + +complete -F _ss_server ss-server diff --git a/shadowsocksr-libev/src/completions/bash/ss-tunnel b/shadowsocksr-libev/src/completions/bash/ss-tunnel new file mode 100644 index 000000000..b3c16eb70 --- /dev/null +++ b/shadowsocksr-libev/src/completions/bash/ss-tunnel @@ -0,0 +1,38 @@ +_ss_tunnel() +{ + local cur prev opts ciphers + ciphers='rc4-md5 table rc4 aes-128-cfb aes-192-cfb aes-256-cfb aes-128-ctr aes-192-ctr aes-256-ctr bf-cfb camellia-128-cfb camellia-192-cfb camellia-256-cfb cast5-cfb des-cfb idea-cfb rc2-cfb seed-cfb salsa20 chacha20 and chacha20-ietf' + opts='-s -b -p -k -f -t -m -c -a -n -u -U -v -h -A --mtu --help --mptcp -i -l -L' + cur=${COMP_WORDS[COMP_CWORD]} + prev="${COMP_WORDS[COMP_CWORD-1]}" + compopt +o nospace + case "$prev" in + -c|-f) + _filedir || COMPREPLY=( $(compgen -o plusdirs -f ${cur}) ) + ;; + -s|-b) + _known_hosts_real -- "${cur}" || OMPREPLY=( $(compgen -A hostname -- ${cur}) ) + ;; + -L) + compopt -o nospace + _known_hosts_real -c -- "${cur}" || OMPREPLY=( $(compgen -A hostname -S : -- ${cur}) ) + ;; + -m) + COMPREPLY=( $(compgen -W "$ciphers" -- ${cur}) ) + ;; + -a) + _allowed_users || COMPREPLY=( $(compgen -u -- ${cur}) ) + ;; + -p|-k|-t|-n|--mtu|-l) + ;; + -i) + _available_interfaces -a || true + ;; + *) + COMPREPLY+=( $(compgen -W "${opts}" -- ${cur}) ) + ;; + esac + return 0 +} + +complete -F _ss_tunnel ss-tunnel diff --git a/shadowsocksr-libev/src/config.h.cmake b/shadowsocksr-libev/src/config.h.cmake new file mode 100644 index 000000000..d63d86d18 --- /dev/null +++ b/shadowsocksr-libev/src/config.h.cmake @@ -0,0 +1,434 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define if building universal (internal helper macro) */ +#undef AC_APPLE_UNIVERSAL_BUILD + +/* errno for incomplete non-blocking connect(2) */ +#define CONNECT_IN_PROGRESS @CONNECT_IN_PROGRESS@ + +#ifdef _WIN32 + +/* Override libev default fd conversion macro. */ +#define EV_FD_TO_WIN32_HANDLE(fd) (fd) + +/* Override libev default fd close macro. */ +#define EV_WIN32_CLOSE_FD(fd) closesocket(fd) + +/* Override libev default handle conversion macro. */ +#define EV_WIN32_HANDLE_TO_FD(handle) (handle) + +/* Reset max file descriptor size. */ +#define FD_SETSIZE 2048 + +#endif + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_ARPA_INET_H 1 + +/* Define to 1 if you have the `CCCryptorCreateWithMode' function. */ +#cmakedefine HAVE_CCCRYPTORCREATEWITHMODE 1 + +/* Define to 1 if you have the `clock_gettime' function. */ +#cmakedefine HAVE_CLOCK_GETTIME 1 + +/* Define to 1 to use the syscall interface for clock_gettime */ +#cmakedefine HAVE_CLOCK_SYSCALL 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_COMMONCRYPTO_COMMONCRYPTO_H 1 + +/* Define to 1 if you have the declaration of `inet_ntop', and to 0 if you + don't. */ +#define HAVE_DECL_INET_NTOP @HAVE_DECL_INET_NTOP@ + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_DLFCN_H 1 + +/* Define to 1 if you have the `epoll_ctl' function. */ +#cmakedefine HAVE_EPOLL_CTL 1 + +/* Define to 1 if you have the `eventfd' function. */ +#cmakedefine HAVE_EVENTFD 1 + +/* Define to 1 if you have the `EVP_EncryptInit_ex' function. */ +#cmakedefine HAVE_EVP_ENCRYPTINIT_EX 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_FCNTL_H 1 + +/* Define to 1 if the floor function is available */ +#cmakedefine HAVE_FLOOR 1 + +/* Define to 1 if you have the `fork' function. */ +#cmakedefine HAVE_FORK 1 + +/* Define to 1 if you have the `getpwnam_r' function. */ +#cmakedefine HAVE_GETPWNAM_R 1 + +/* Define to 1 if you have the `inet_ntop' function. */ +#cmakedefine HAVE_INET_NTOP 1 + +/* Define to 1 if you have the `inotify_init' function. */ +#cmakedefine HAVE_INOTIFY_INIT 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_INTTYPES_H 1 + +/* Enable IPv6 support in libudns */ +#cmakedefine HAVE_IPv6 1 + +/* Define to 1 if you have the `kqueue' function. */ +#cmakedefine HAVE_KQUEUE 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_LANGINFO_H 1 + +/* Compiling with pcre support */ +#cmakedefine HAVE_LIBPCRE 1 + +/* Define to 1 if you have the `rt' library (-lrt). */ +#cmakedefine HAVE_LIBRT 1 + +/* Define to 1 if you have the `socket' library (-lsocket). */ +#cmakedefine HAVE_LIBSOCKET 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_LIMITS_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_LINUX_IF_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_LINUX_NETFILTER_IPV4_H 1 + +/* Define to 1 if you have the header + file. */ +#cmakedefine HAVE_LINUX_NETFILTER_IPV6_IP6_TABLES_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_LOCALE_H 1 + +/* Define to 1 if you have the `malloc' function. */ +#cmakedefine HAVE_MALLOC 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_MEMORY_H 1 + +/* Define to 1 if you have the `memset' function. */ +#cmakedefine HAVE_MEMSET 1 + +/* Define to 1 if you have the `nanosleep' function. */ +#cmakedefine HAVE_NANOSLEEP 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_NETDB_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_NETINET_IN_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_NET_IF_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_OPENSSL_ENGINE_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_OPENSSL_ERR_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_OPENSSL_EVP_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_OPENSSL_PEM_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_OPENSSL_RAND_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_OPENSSL_RSA_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_OPENSSL_SHA_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_PCRE_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_PCRE_PCRE_H 1 + +/* Define to 1 if you have the `poll' function. */ +#cmakedefine HAVE_POLL 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_POLL_H 1 + +/* Define to 1 if you have the `port_create' function. */ +#cmakedefine HAVE_PORT_CREATE 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_PORT_H 1 + +/* Have PTHREAD_PRIO_INHERIT. */ +#cmakedefine HAVE_PTHREAD_PRIO_INHERIT 1 + +/* Define to 1 if you have the `RAND_pseudo_bytes' function. */ +#cmakedefine HAVE_RAND_PSEUDO_BYTES 1 + +/* Define to 1 if you have the 'select' function. */ +#cmakedefine HAVE_SELECT 1 + +/* Define to 1 if you have the `setresuid' function. */ +#cmakedefine HAVE_SETRESUID 1 + +/* Define to 1 if you have the `setreuid' function. */ +#cmakedefine HAVE_SETREUID 1 + +/* Define to 1 if you have the `setrlimit' function. */ +#cmakedefine HAVE_SETRLIMIT 1 + +/* Define to 1 if you have the `signalfd' function. */ +#cmakedefine HAVE_SIGNALFD 1 + +/* Define to 1 if you have the `socket' function. */ +#cmakedefine HAVE_SOCKET 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_STDINT_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_STDLIB_H 1 + +/* Define to 1 if you have the `strerror' function. */ +#cmakedefine HAVE_STRERROR 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_STRINGS_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_STRING_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_EPOLL_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_EVENTFD_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_EVENT_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_INOTIFY_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_IOCTL_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_SELECT_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_SIGNALFD_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_SOCKET_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_STAT_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_TYPES_H 1 + +/* Define to 1 if you have that is POSIX.1 compatible. */ +#cmakedefine HAVE_SYS_WAIT_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_UNISTD_H 1 + +/* Define to 1 if you have the `vfork' function. */ +#cmakedefine HAVE_VFORK 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_VFORK_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_WINDOWS_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_WINSOCK2_H 1 + +/* Define to 1 if `fork' works. */ +#undef HAVE_WORKING_FORK + +/* Define to 1 if `vfork' works. */ +#undef HAVE_WORKING_VFORK + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_WS2TCPIP_H 1 + +/* have zlib compression support */ +#cmakedefine HAVE_ZLIB 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_ZLIB_H 1 + +/* Define to the sub-directory in which libtool stores uninstalled libraries. + */ +#undef LT_OBJDIR + +/* Define to 1 if assertions should be disabled. */ +#undef NDEBUG + +/* Name of package */ +#undef PACKAGE + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#define PACKAGE_VERSION @VERSION@ + +/* Define to necessary symbol if this constant uses a non-standard name on + your system. */ +#cmakedefine PTHREAD_CREATE_JOINABLE @PTHREAD_CREATE_JOINABLE@ + +/* Define as the return type of signal handlers (`int' or `void'). */ +#undef RETSIGTYPE + +/* Define to the type of arg 1 for `select'. */ +#undef SELECT_TYPE_ARG1 + +/* Define to the type of args 2, 3 and 4 for `select'. */ +#undef SELECT_TYPE_ARG234 + +/* Define to the type of arg 5 for `select'. */ +#undef SELECT_TYPE_ARG5 + +/* Define to 1 if you have the ANSI C header files. */ +#cmakedefine STDC_HEADERS 1 + +/* Define to 1 if you can safely include both and . */ +#cmakedefine TIME_WITH_SYS_TIME 1 + +/* If the compiler supports a TLS storage class define it to that here */ +#cmakedefine TLS 1 + +/* Use Apple CommonCrypto library */ +#cmakedefine USE_CRYPTO_APPLECC 1 + +/* Use mbed TLS library */ +#cmakedefine USE_CRYPTO_MBEDTLS 1 + +/* Use OpenSSL library */ +#cmakedefine USE_CRYPTO_OPENSSL 1 + +/* Use PolarSSL library */ +#cmakedefine USE_CRYPTO_POLARSSL 1 + +/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable threading extensions on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif + + +/* Version number of package */ +#define VERSION "@VERSION@" + +/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most + significant byte first (like Motorola and SPARC, unlike Intel). */ +#if defined AC_APPLE_UNIVERSAL_BUILD +# if defined __BIG_ENDIAN__ +# define WORDS_BIGENDIAN 1 +# endif +#else +# ifndef WORDS_BIGENDIAN +# undef WORDS_BIGENDIAN +# endif +#endif + +/* Define to 1 if on MINIX. */ +#cmakedefine _MINIX 1 + +/* Define to 2 if the system does not provide POSIX.1 features except with + this defined. */ +#cmakedefine _POSIX_1_SOURCE 2 + +/* Define to 1 if you need to in order for `stat' and other things to work. */ +#cmakedefine _POSIX_SOURCE 1 + +/* Define for Solaris 2.5.1 so the uint8_t typedef from , + , or is not used. If the typedef were allowed, the + #define below would cause a syntax error. */ +#undef _UINT8_T + +/* Define to empty if `const' does not conform to ANSI C. */ +#undef const + +/* Define to `__inline__' or `__inline' if that's what the C compiler + calls it, or to nothing if 'inline' is not supported under any name. */ +#ifndef __cplusplus +#undef inline +#endif + +/* Define to `int' if does not define. */ +#cmakedefine HAVE_PID_T 1 +#ifndef HAVE_PID_T +#define pid_t int +#endif + +/* Define to the equivalent of the C99 'restrict' keyword, or to + nothing if this is not supported. Do not define if restrict is + supported directly. */ +#undef restrict +/* Work around a bug in Sun C++: it does not support _Restrict or + __restrict__, even though the corresponding Sun C compiler ends up with + "#define restrict _Restrict" or "#define restrict __restrict__" in the + previous line. Perhaps some future version of Sun C++ will work with + restrict; if so, hopefully it defines __RESTRICT like Sun C does. */ +#if defined __SUNPRO_CC && !defined __RESTRICT +# define _Restrict +# define __restrict__ +#endif + +/* Define to `unsigned int' if does not define. */ +#undef size_t + +/* Define to `int' if does not define. */ +#undef ssize_t + +/* Define to the type of an unsigned integer type of width exactly 16 bits if + such a type exists and the standard includes do not define it. */ +#undef uint16_t + +/* Define to the type of an unsigned integer type of width exactly 8 bits if + such a type exists and the standard includes do not define it. */ +#undef uint8_t + +/* Define as `fork' if `vfork' does not work. */ +#undef vfork diff --git a/shadowsocksr-libev/src/config.h.in b/shadowsocksr-libev/src/config.h.in new file mode 100644 index 000000000..03ee29c60 --- /dev/null +++ b/shadowsocksr-libev/src/config.h.in @@ -0,0 +1,427 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define if building universal (internal helper macro) */ +#undef AC_APPLE_UNIVERSAL_BUILD + +/* errno for incomplete non-blocking connect(2) */ +#undef CONNECT_IN_PROGRESS + +/* Override libev default fd conversion macro. */ +#undef EV_FD_TO_WIN32_HANDLE + +/* Override libev default fd close macro. */ +#undef EV_WIN32_CLOSE_FD + +/* Override libev default handle conversion macro. */ +#undef EV_WIN32_HANDLE_TO_FD + +/* Reset max file descriptor size. */ +#undef FD_SETSIZE + +/* Define to 1 if you have the header file. */ +#undef HAVE_ARPA_INET_H + +/* Define to 1 if you have the `CCCryptorCreateWithMode' function. */ +#undef HAVE_CCCRYPTORCREATEWITHMODE + +/* Define to 1 if you have the `clock_gettime' function. */ +#undef HAVE_CLOCK_GETTIME + +/* Define to 1 to use the syscall interface for clock_gettime */ +#undef HAVE_CLOCK_SYSCALL + +/* Define to 1 if you have the header file. */ +#undef HAVE_COMMONCRYPTO_COMMONCRYPTO_H + +/* Define to 1 if you have the declaration of `inet_ntop', and to 0 if you + don't. */ +#undef HAVE_DECL_INET_NTOP + +/* Define to 1 if you have the header file. */ +#undef HAVE_DLFCN_H + +/* Define to 1 if you have the `epoll_ctl' function. */ +#undef HAVE_EPOLL_CTL + +/* Define to 1 if you have the `eventfd' function. */ +#undef HAVE_EVENTFD + +/* Define to 1 if you have the `EVP_EncryptInit_ex' function. */ +#undef HAVE_EVP_ENCRYPTINIT_EX + +/* Define to 1 if you have the header file. */ +#undef HAVE_FCNTL_H + +/* Define to 1 if the floor function is available */ +#undef HAVE_FLOOR + +/* Define to 1 if you have the `fork' function. */ +#undef HAVE_FORK + +/* Define to 1 if you have the `getpwnam_r' function. */ +#undef HAVE_GETPWNAM_R + +/* Define to 1 if you have the `inet_ntop' function. */ +#undef HAVE_INET_NTOP + +/* Define to 1 if you have the `inotify_init' function. */ +#undef HAVE_INOTIFY_INIT + +/* Define to 1 if you have the header file. */ +#undef HAVE_INTTYPES_H + +/* Enable IPv6 support in libudns */ +#undef HAVE_IPv6 + +/* Define to 1 if you have the `kqueue' function. */ +#undef HAVE_KQUEUE + +/* Define to 1 if you have the header file. */ +#undef HAVE_LANGINFO_H + +/* Compiling with pcre support */ +#undef HAVE_LIBPCRE + +/* Define to 1 if you have the `rt' library (-lrt). */ +#undef HAVE_LIBRT + +/* Define to 1 if you have the `socket' library (-lsocket). */ +#undef HAVE_LIBSOCKET + +/* Define to 1 if you have the header file. */ +#undef HAVE_LIMITS_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_LINUX_IF_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_LINUX_NETFILTER_IPV4_H + +/* Define to 1 if you have the header + file. */ +#undef HAVE_LINUX_NETFILTER_IPV6_IP6_TABLES_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_LOCALE_H + +/* Define to 1 if you have the `malloc' function. */ +#undef HAVE_MALLOC + +/* Define to 1 if you have the header file. */ +#undef HAVE_MEMORY_H + +/* Define to 1 if you have the `memset' function. */ +#undef HAVE_MEMSET + +/* Define to 1 if you have the `nanosleep' function. */ +#undef HAVE_NANOSLEEP + +/* Define to 1 if you have the header file. */ +#undef HAVE_NETDB_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_NETINET_IN_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_NET_IF_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_OPENSSL_ENGINE_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_OPENSSL_ERR_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_OPENSSL_EVP_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_OPENSSL_PEM_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_OPENSSL_RAND_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_OPENSSL_RSA_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_OPENSSL_SHA_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_PCRE_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_PCRE_PCRE_H + +/* Define to 1 if you have the `poll' function. */ +#undef HAVE_POLL + +/* Define to 1 if you have the header file. */ +#undef HAVE_POLL_H + +/* Define to 1 if you have the `port_create' function. */ +#undef HAVE_PORT_CREATE + +/* Define to 1 if you have the header file. */ +#undef HAVE_PORT_H + +/* Have PTHREAD_PRIO_INHERIT. */ +#undef HAVE_PTHREAD_PRIO_INHERIT + +/* Define to 1 if you have the `RAND_pseudo_bytes' function. */ +#undef HAVE_RAND_PSEUDO_BYTES + +/* Define to 1 if you have the 'select' function. */ +#undef HAVE_SELECT + +/* Define to 1 if you have the `setresuid' function. */ +#undef HAVE_SETRESUID + +/* Define to 1 if you have the `setreuid' function. */ +#undef HAVE_SETREUID + +/* Define to 1 if you have the `setrlimit' function. */ +#undef HAVE_SETRLIMIT + +/* Define to 1 if you have the `signalfd' function. */ +#undef HAVE_SIGNALFD + +/* Define to 1 if you have the `socket' function. */ +#undef HAVE_SOCKET + +/* Define to 1 if you have the header file. */ +#undef HAVE_STDINT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STDLIB_H + +/* Define to 1 if you have the `strerror' function. */ +#undef HAVE_STRERROR + +/* Define to 1 if you have the header file. */ +#undef HAVE_STRINGS_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STRING_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_EPOLL_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_EVENTFD_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_EVENT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_INOTIFY_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_IOCTL_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_SELECT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_SIGNALFD_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_SOCKET_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_STAT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define to 1 if you have that is POSIX.1 compatible. */ +#undef HAVE_SYS_WAIT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_UNISTD_H + +/* Define to 1 if you have the `vfork' function. */ +#undef HAVE_VFORK + +/* Define to 1 if you have the header file. */ +#undef HAVE_VFORK_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_WINDOWS_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_WINSOCK2_H + +/* Define to 1 if `fork' works. */ +#undef HAVE_WORKING_FORK + +/* Define to 1 if `vfork' works. */ +#undef HAVE_WORKING_VFORK + +/* Define to 1 if you have the header file. */ +#undef HAVE_WS2TCPIP_H + +/* have zlib compression support */ +#undef HAVE_ZLIB + +/* Define to 1 if you have the header file. */ +#undef HAVE_ZLIB_H + +/* Define to the sub-directory in which libtool stores uninstalled libraries. + */ +#undef LT_OBJDIR + +/* Define to 1 if assertions should be disabled. */ +#undef NDEBUG + +/* Name of package */ +#undef PACKAGE + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Define to necessary symbol if this constant uses a non-standard name on + your system. */ +#undef PTHREAD_CREATE_JOINABLE + +/* Define as the return type of signal handlers (`int' or `void'). */ +#undef RETSIGTYPE + +/* Define to the type of arg 1 for `select'. */ +#undef SELECT_TYPE_ARG1 + +/* Define to the type of args 2, 3 and 4 for `select'. */ +#undef SELECT_TYPE_ARG234 + +/* Define to the type of arg 5 for `select'. */ +#undef SELECT_TYPE_ARG5 + +/* Define to 1 if you have the ANSI C header files. */ +#undef STDC_HEADERS + +/* Define to 1 if you can safely include both and . */ +#undef TIME_WITH_SYS_TIME + +/* If the compiler supports a TLS storage class define it to that here */ +#undef TLS + +/* Use Apple CommonCrypto library */ +#undef USE_CRYPTO_APPLECC + +/* Use mbed TLS library */ +#undef USE_CRYPTO_MBEDTLS + +/* Use OpenSSL library */ +#undef USE_CRYPTO_OPENSSL + +/* Use PolarSSL library */ +#undef USE_CRYPTO_POLARSSL + +/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable threading extensions on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif + + +/* Version number of package */ +#undef VERSION + +/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most + significant byte first (like Motorola and SPARC, unlike Intel). */ +#if defined AC_APPLE_UNIVERSAL_BUILD +# if defined __BIG_ENDIAN__ +# define WORDS_BIGENDIAN 1 +# endif +#else +# ifndef WORDS_BIGENDIAN +# undef WORDS_BIGENDIAN +# endif +#endif + +/* Define to 1 if on MINIX. */ +#undef _MINIX + +/* Define to 2 if the system does not provide POSIX.1 features except with + this defined. */ +#undef _POSIX_1_SOURCE + +/* Define to 1 if you need to in order for `stat' and other things to work. */ +#undef _POSIX_SOURCE + +/* Define for Solaris 2.5.1 so the uint8_t typedef from , + , or is not used. If the typedef were allowed, the + #define below would cause a syntax error. */ +#undef _UINT8_T + +/* Define to empty if `const' does not conform to ANSI C. */ +#undef const + +/* Define to `__inline__' or `__inline' if that's what the C compiler + calls it, or to nothing if 'inline' is not supported under any name. */ +#ifndef __cplusplus +#undef inline +#endif + +/* Define to `int' if does not define. */ +#undef pid_t + +/* Define to the equivalent of the C99 'restrict' keyword, or to + nothing if this is not supported. Do not define if restrict is + supported directly. */ +#undef restrict +/* Work around a bug in Sun C++: it does not support _Restrict or + __restrict__, even though the corresponding Sun C compiler ends up with + "#define restrict _Restrict" or "#define restrict __restrict__" in the + previous line. Perhaps some future version of Sun C++ will work with + restrict; if so, hopefully it defines __RESTRICT like Sun C does. */ +#if defined __SUNPRO_CC && !defined __RESTRICT +# define _Restrict +# define __restrict__ +#endif + +/* Define to `unsigned int' if does not define. */ +#undef size_t + +/* Define to `int' if does not define. */ +#undef ssize_t + +/* Define to the type of an unsigned integer type of width exactly 16 bits if + such a type exists and the standard includes do not define it. */ +#undef uint16_t + +/* Define to the type of an unsigned integer type of width exactly 8 bits if + such a type exists and the standard includes do not define it. */ +#undef uint8_t + +/* Define as `fork' if `vfork' does not work. */ +#undef vfork diff --git a/shadowsocksr-libev/src/configure b/shadowsocksr-libev/src/configure new file mode 100644 index 000000000..7d854c42d --- /dev/null +++ b/shadowsocksr-libev/src/configure @@ -0,0 +1,18764 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.69 for shadowsocks-libev 2.5.6. +# +# Report bugs to . +# +# +# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. +# +# +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +# Use a proper internal environment variable to ensure we don't fall + # into an infinite loop, continuously re-executing ourselves. + if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then + _as_can_reexec=no; export _as_can_reexec; + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +as_fn_exit 255 + fi + # We don't want this to propagate to other subprocesses. + { _as_can_reexec=; unset _as_can_reexec;} +if test "x$CONFIG_SHELL" = x; then + as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi +" + as_required="as_fn_return () { (exit \$1); } +as_fn_success () { as_fn_return 0; } +as_fn_failure () { as_fn_return 1; } +as_fn_ret_success () { return 0; } +as_fn_ret_failure () { return 1; } + +exitcode=0 +as_fn_success || { exitcode=1; echo as_fn_success failed.; } +as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; } +as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; } +as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; } +if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then : + +else + exitcode=1; echo positional parameters were not saved. +fi +test x\$exitcode = x0 || exit 1 +test -x / || exit 1" + as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO + as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO + eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" && + test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1 +test \$(( 1 + 1 )) = 2 || exit 1 + + test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || ( + ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' + ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO + ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO + PATH=/empty FPATH=/empty; export PATH FPATH + test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\ + || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1" + if (eval "$as_required") 2>/dev/null; then : + as_have_required=yes +else + as_have_required=no +fi + if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then : + +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +as_found=false +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + as_found=: + case $as_dir in #( + /*) + for as_base in sh bash ksh sh5; do + # Try only shells that exist, to save several forks. + as_shell=$as_dir/$as_base + if { test -f "$as_shell" || test -f "$as_shell.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then : + CONFIG_SHELL=$as_shell as_have_required=yes + if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then : + break 2 +fi +fi + done;; + esac + as_found=false +done +$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then : + CONFIG_SHELL=$SHELL as_have_required=yes +fi; } +IFS=$as_save_IFS + + + if test "x$CONFIG_SHELL" != x; then : + export CONFIG_SHELL + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +exit 255 +fi + + if test x$as_have_required = xno; then : + $as_echo "$0: This script requires a shell more modern than all" + $as_echo "$0: the shells that I found on your system." + if test x${ZSH_VERSION+set} = xset ; then + $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should" + $as_echo "$0: be upgraded to zsh 4.3.4 or later." + else + $as_echo "$0: Please tell bug-autoconf@gnu.org and max.c.lv@gmail.com +$0: about your system, including any error possibly output +$0: before this message. Then install a modern shell, or +$0: manually run the script under such a shell if you do +$0: have one." + fi + exit 1 +fi +fi +fi +SHELL=${CONFIG_SHELL-/bin/sh} +export SHELL +# Unset more variables known to interfere with behavior of common tools. +CLICOLOR_FORCE= GREP_OPTIONS= +unset CLICOLOR_FORCE GREP_OPTIONS + +## --------------------- ## +## M4sh Shell Functions. ## +## --------------------- ## +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. 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Assumes +# that executables *can* be run. +ac_fn_c_try_run () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + if { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { ac_try='./conftest$ac_exeext' + { { case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then : + ac_retval=0 +else + $as_echo "$as_me: program exited with status $ac_status" >&5 + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=$ac_status +fi + rm -rf conftest.dSYM conftest_ipa8_conftest.oo + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_c_try_run + +# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES +# ------------------------------------------------------- +# Tests whether HEADER exists and can be compiled using the include files in +# INCLUDES, setting the cache variable VAR accordingly. +ac_fn_c_check_header_compile () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +#include <$2> +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_header_compile + +# ac_fn_c_try_link LINENO +# ----------------------- +# Try to link conftest.$ac_ext, and return whether this succeeded. +ac_fn_c_try_link () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + rm -f conftest.$ac_objext conftest$ac_exeext + if { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + grep -v '^ *+' conftest.err >conftest.er1 + cat conftest.er1 >&5 + mv -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest$ac_exeext && { + test "$cross_compiling" = yes || + test -x conftest$ac_exeext + }; then : + ac_retval=0 +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=1 +fi + # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information + # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would + # interfere with the next link command; also delete a directory that is + # left behind by Apple's compiler. We do this before executing the actions. + rm -rf conftest.dSYM conftest_ipa8_conftest.oo + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_c_try_link + +# ac_fn_c_check_func LINENO FUNC VAR +# ---------------------------------- +# Tests whether FUNC exists, setting the cache variable VAR accordingly +ac_fn_c_check_func () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +/* Define $2 to an innocuous variant, in case declares $2. + For example, HP-UX 11i declares gettimeofday. */ +#define $2 innocuous_$2 + +/* System header to define __stub macros and hopefully few prototypes, + which can conflict with char $2 (); below. + Prefer to if __STDC__ is defined, since + exists even on freestanding compilers. */ + +#ifdef __STDC__ +# include +#else +# include +#endif + +#undef $2 + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char $2 (); +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined __stub_$2 || defined __stub___$2 +choke me +#endif + +int +main () +{ +return $2 (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_func + +# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES +# --------------------------------------------- +# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR +# accordingly. +ac_fn_c_check_decl () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + as_decl_name=`echo $2|sed 's/ *(.*//'` + as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'` + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5 +$as_echo_n "checking whether $as_decl_name is declared... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +#ifndef $as_decl_name +#ifdef __cplusplus + (void) $as_decl_use; +#else + (void) $as_decl_name; +#endif +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_decl + +# ac_fn_c_check_type LINENO TYPE VAR INCLUDES +# ------------------------------------------- +# Tests whether TYPE exists after having included INCLUDES, setting cache +# variable VAR accordingly. +ac_fn_c_check_type () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... 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" >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + eval "$3=no" + # Order is important - never check a type that is potentially smaller + # than half of the expected target width. + for ac_type in uint$2_t 'unsigned int' 'unsigned long int' \ + 'unsigned long long int' 'unsigned short int' 'unsigned char'; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_includes_default +int +main () +{ +static int test_array [1 - 2 * !((($ac_type) -1 >> ($2 / 2 - 1)) >> ($2 / 2 - 1) == 3)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + case $ac_type in #( + uint$2_t) : + eval "$3=yes" ;; #( + *) : + eval "$3=\$ac_type" ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + if eval test \"x\$"$3"\" = x"no"; then : + +else + break +fi + done +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_find_uintX_t +cat >config.log <<_ACEOF +This file contains any messages produced by compilers while +running configure, to aid debugging if configure makes a mistake. + +It was created by shadowsocks-libev $as_me 2.5.6, which was +generated by GNU Autoconf 2.69. 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Use of quotes ensures accuracy. + *) as_fn_append ac_configure_args " '$ac_arg'" ;; + esac + fi +done +if $ac_cache_corrupted; then + { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5 +$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;} + as_fn_error $? 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"cannot find install-sh, install.sh, or shtool in auto \"$srcdir\"/auto" "$LINENO" 5 +fi + +# These three variables are undocumented and unsupported, +# and are intended to be withdrawn in a future Autoconf release. +# They can cause serious problems if a builder's source tree is in a directory +# whose full name contains unusual characters. +ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var. +ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var. +ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var. + + + +# expand $ac_aux_dir to an absolute path +am_aux_dir=`cd $ac_aux_dir && pwd` + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? 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Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details" "$LINENO" 5; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5 +$as_echo_n "checking for grep that handles long lines and -e... " >&6; } +if ${ac_cv_path_GREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$GREP"; then + ac_path_GREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in grep ggrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_GREP" || continue +# Check for GNU ac_path_GREP and select it if it is found. + # Check for GNU $ac_path_GREP +case `"$ac_path_GREP" --version 2>&1` in +*GNU*) + ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'GREP' >> "conftest.nl" + "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_GREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_GREP="$ac_path_GREP" + ac_path_GREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_GREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_GREP"; then + as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_GREP=$GREP +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5 +$as_echo "$ac_cv_path_GREP" >&6; } + GREP="$ac_cv_path_GREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5 +$as_echo_n "checking for egrep... " >&6; } +if ${ac_cv_path_EGREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 + then ac_cv_path_EGREP="$GREP -E" + else + if test -z "$EGREP"; then + ac_path_EGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in egrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_EGREP" || continue +# Check for GNU ac_path_EGREP and select it if it is found. + # Check for GNU $ac_path_EGREP +case `"$ac_path_EGREP" --version 2>&1` in +*GNU*) + ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'EGREP' >> "conftest.nl" + "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_EGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_EGREP="$ac_path_EGREP" + ac_path_EGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_EGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_EGREP"; then + as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_EGREP=$EGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5 +$as_echo "$ac_cv_path_EGREP" >&6; } + EGREP="$ac_cv_path_EGREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 +$as_echo_n "checking for ANSI C header files... " >&6; } +if ${ac_cv_header_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_stdc=yes +else + ac_cv_header_stdc=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then : + : +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 +$as_echo "$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +$as_echo "#define STDC_HEADERS 1" >>confdefs.h + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + + + ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default" +if test "x$ac_cv_header_minix_config_h" = xyes; then : + MINIX=yes +else + MINIX= +fi + + + if test "$MINIX" = yes; then + +$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h + + +$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h + + +$as_echo "#define _MINIX 1" >>confdefs.h + + fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5 +$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; } +if ${ac_cv_safe_to_define___extensions__+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +# define __EXTENSIONS__ 1 + $ac_includes_default +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_safe_to_define___extensions__=yes +else + ac_cv_safe_to_define___extensions__=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5 +$as_echo "$ac_cv_safe_to_define___extensions__" >&6; } + test $ac_cv_safe_to_define___extensions__ = yes && + $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h + + $as_echo "#define _ALL_SOURCE 1" >>confdefs.h + + $as_echo "#define _GNU_SOURCE 1" >>confdefs.h + + $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h + + $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h + + + +am__api_version='1.14' + +# Find a good install program. We prefer a C program (faster), +# so one script is as good as another. But avoid the broken or +# incompatible versions: +# SysV /etc/install, /usr/sbin/install +# SunOS /usr/etc/install +# IRIX /sbin/install +# AIX /bin/install +# AmigaOS /C/install, which installs bootblocks on floppy discs +# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag +# AFS /usr/afsws/bin/install, which mishandles nonexistent args +# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" +# OS/2's system install, which has a completely different semantic +# ./install, which can be erroneously created by make from ./install.sh. +# Reject install programs that cannot install multiple files. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5 +$as_echo_n "checking for a BSD-compatible install... " >&6; } +if test -z "$INSTALL"; then +if ${ac_cv_path_install+:} false; then : + $as_echo_n "(cached) " >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + # Account for people who put trailing slashes in PATH elements. +case $as_dir/ in #(( + ./ | .// | /[cC]/* | \ + /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \ + ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \ + /usr/ucb/* ) ;; + *) + # OSF1 and SCO ODT 3.0 have their own names for install. + # Don't use installbsd from OSF since it installs stuff as root + # by default. + for ac_prog in ginstall scoinst install; do + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then + if test $ac_prog = install && + grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # AIX install. It has an incompatible calling convention. + : + elif test $ac_prog = install && + grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # program-specific install script used by HP pwplus--don't use. + : + else + rm -rf conftest.one conftest.two conftest.dir + echo one > conftest.one + echo two > conftest.two + mkdir conftest.dir + if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" && + test -s conftest.one && test -s conftest.two && + test -s conftest.dir/conftest.one && + test -s conftest.dir/conftest.two + then + ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" + break 3 + fi + fi + fi + done + done + ;; +esac + + done +IFS=$as_save_IFS + +rm -rf conftest.one conftest.two conftest.dir + +fi + if test "${ac_cv_path_install+set}" = set; then + INSTALL=$ac_cv_path_install + else + # As a last resort, use the slow shell script. Don't cache a + # value for INSTALL within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + INSTALL=$ac_install_sh + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5 +$as_echo "$INSTALL" >&6; } + +# Use test -z because SunOS4 sh mishandles braces in ${var-val}. +# It thinks the first close brace ends the variable substitution. +test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' + +test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' + +test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5 +$as_echo_n "checking whether build environment is sane... " >&6; } +# Reject unsafe characters in $srcdir or the absolute working directory +# name. Accept space and tab only in the latter. +am_lf=' +' +case `pwd` in + *[\\\"\#\$\&\'\`$am_lf]*) + as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;; +esac +case $srcdir in + *[\\\"\#\$\&\'\`$am_lf\ \ ]*) + as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;; +esac + +# Do 'set' in a subshell so we don't clobber the current shell's +# arguments. Must try -L first in case configure is actually a +# symlink; some systems play weird games with the mod time of symlinks +# (eg FreeBSD returns the mod time of the symlink's containing +# directory). +if ( + am_has_slept=no + for am_try in 1 2; do + echo "timestamp, slept: $am_has_slept" > conftest.file + set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` + if test "$*" = "X"; then + # -L didn't work. + set X `ls -t "$srcdir/configure" conftest.file` + fi + if test "$*" != "X $srcdir/configure conftest.file" \ + && test "$*" != "X conftest.file $srcdir/configure"; then + + # If neither matched, then we have a broken ls. This can happen + # if, for instance, CONFIG_SHELL is bash and it inherits a + # broken ls alias from the environment. This has actually + # happened. Such a system could not be considered "sane". + as_fn_error $? "ls -t appears to fail. Make sure there is not a broken + alias in your environment" "$LINENO" 5 + fi + if test "$2" = conftest.file || test $am_try -eq 2; then + break + fi + # Just in case. + sleep 1 + am_has_slept=yes + done + test "$2" = conftest.file + ) +then + # Ok. + : +else + as_fn_error $? "newly created file is older than distributed files! +Check your system clock" "$LINENO" 5 +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +# If we didn't sleep, we still need to ensure time stamps of config.status and +# generated files are strictly newer. +am_sleep_pid= +if grep 'slept: no' conftest.file >/dev/null 2>&1; then + ( sleep 1 ) & + am_sleep_pid=$! +fi + +rm -f conftest.file + +test "$program_prefix" != NONE && + program_transform_name="s&^&$program_prefix&;$program_transform_name" +# Use a double $ so make ignores it. +test "$program_suffix" != NONE && + program_transform_name="s&\$&$program_suffix&;$program_transform_name" +# Double any \ or $. +# By default was `s,x,x', remove it if useless. +ac_script='s/[\\$]/&&/g;s/;s,x,x,$//' +program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"` + +if test x"${MISSING+set}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;; + *) + MISSING="\${SHELL} $am_aux_dir/missing" ;; + esac +fi +# Use eval to expand $SHELL +if eval "$MISSING --is-lightweight"; then + am_missing_run="$MISSING " +else + am_missing_run= + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5 +$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;} +fi + +if test x"${install_sh}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;; + *) + install_sh="\${SHELL} $am_aux_dir/install-sh" + esac +fi + +# Installed binaries are usually stripped using 'strip' when the user +# run "make install-strip". However 'strip' might not be the right +# tool to use in cross-compilation environments, therefore Automake +# will honor the 'STRIP' environment variable to overrule this program. +if test "$cross_compiling" != no; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +fi +INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5 +$as_echo_n "checking for a thread-safe mkdir -p... " >&6; } +if test -z "$MKDIR_P"; then + if ${ac_cv_path_mkdir+:} false; then : + $as_echo_n "(cached) " >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in mkdir gmkdir; do + for ac_exec_ext in '' $ac_executable_extensions; do + as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue + case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #( + 'mkdir (GNU coreutils) '* | \ + 'mkdir (coreutils) '* | \ + 'mkdir (fileutils) '4.1*) + ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext + break 3;; + esac + done + done + done +IFS=$as_save_IFS + +fi + + test -d ./--version && rmdir ./--version + if test "${ac_cv_path_mkdir+set}" = set; then + MKDIR_P="$ac_cv_path_mkdir -p" + else + # As a last resort, use the slow shell script. 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We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac +else + enable_shared=no +fi + + + + + + + + + +case `pwd` in + *\ * | *\ *) + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5 +$as_echo "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;; +esac + + + +macro_version='2.4.2' +macro_revision='1.3337' + + + + + + + + + + + + + +ltmain="$ac_aux_dir/ltmain.sh" + +# Make sure we can run config.sub. +$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 || + as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5 + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5 +$as_echo_n "checking build system type... 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" >&6; } +if ${lt_cv_path_NM+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM="$NM" +else + lt_nm_to_check="${ac_tool_prefix}nm" + if test -n "$ac_tool_prefix" && test "$build" = "$host"; then + lt_nm_to_check="$lt_nm_to_check nm" + fi + for lt_tmp_nm in $lt_nm_to_check; do + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + tmp_nm="$ac_dir/$lt_tmp_nm" + if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the `sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in + */dev/null* | *'Invalid file or object type'*) + lt_cv_path_NM="$tmp_nm -B" + break + ;; + *) + case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in + */dev/null*) + lt_cv_path_NM="$tmp_nm -p" + break + ;; + *) + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + ;; + esac + ;; + esac + fi + done + IFS="$lt_save_ifs" + done + : ${lt_cv_path_NM=no} +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5 +$as_echo "$lt_cv_path_NM" >&6; } +if test "$lt_cv_path_NM" != "no"; then + NM="$lt_cv_path_NM" +else + # Didn't find any BSD compatible name lister, look for dumpbin. + if test -n "$DUMPBIN"; then : + # Let the user override the test. + else + if test -n "$ac_tool_prefix"; then + for ac_prog in dumpbin "link -dump" + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DUMPBIN+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DUMPBIN"; then + ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DUMPBIN=$ac_cv_prog_DUMPBIN +if test -n "$DUMPBIN"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5 +$as_echo "$DUMPBIN" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$DUMPBIN" && break + done +fi +if test -z "$DUMPBIN"; then + ac_ct_DUMPBIN=$DUMPBIN + for ac_prog in dumpbin "link -dump" +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DUMPBIN"; then + ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DUMPBIN="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN +if test -n "$ac_ct_DUMPBIN"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5 +$as_echo "$ac_ct_DUMPBIN" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_DUMPBIN" && break +done + + if test "x$ac_ct_DUMPBIN" = x; then + DUMPBIN=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DUMPBIN=$ac_ct_DUMPBIN + fi +fi + + case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in + *COFF*) + DUMPBIN="$DUMPBIN -symbols" + ;; + *) + DUMPBIN=: + ;; + esac + fi + + if test "$DUMPBIN" != ":"; then + NM="$DUMPBIN" + fi +fi +test -z "$NM" && NM=nm + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5 +$as_echo_n "checking the name lister ($NM) interface... " >&6; } +if ${lt_cv_nm_interface+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext + (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&5 + (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5) + (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) + cat conftest.err >&5 + (eval echo "\"\$as_me:$LINENO: output\"" >&5) + cat conftest.out >&5 + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" + fi + rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5 +$as_echo "$lt_cv_nm_interface" >&6; } + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5 +$as_echo_n "checking whether ln -s works... " >&6; } +LN_S=$as_ln_s +if test "$LN_S" = "ln -s"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5 +$as_echo "no, using $LN_S" >&6; } +fi + +# find the maximum length of command line arguments +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5 +$as_echo_n "checking the maximum length of command line arguments... " >&6; } +if ${lt_cv_sys_max_cmd_len+:} false; then : + $as_echo_n "(cached) " >&6 +else + i=0 + teststring="ABCD" + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + gnu*) + # Under GNU Hurd, this test is not required because there is + # no limit to the length of command line arguments. + # Libtool will interpret -1 as no limit whatsoever + lt_cv_sys_max_cmd_len=-1; + ;; + + cygwin* | mingw* | cegcc*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + mint*) + # On MiNT this can take a long time and run out of memory. + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + netbsd* | freebsd* | openbsd* | darwin* | dragonfly*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + + interix*) + # We know the value 262144 and hardcode it with a safety zone (like BSD) + lt_cv_sys_max_cmd_len=196608 + ;; + + os2*) + # The test takes a long time on OS/2. + lt_cv_sys_max_cmd_len=8192 + ;; + + osf*) + # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure + # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not + # nice to cause kernel panics so lets avoid the loop below. + # First set a reasonable default. + lt_cv_sys_max_cmd_len=16384 + # + if test -x /sbin/sysconfig; then + case `/sbin/sysconfig -q proc exec_disable_arg_limit` in + *1*) lt_cv_sys_max_cmd_len=-1 ;; + esac + fi + ;; + sco3.2v5*) + lt_cv_sys_max_cmd_len=102400 + ;; + sysv5* | sco5v6* | sysv4.2uw2*) + kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` + if test -n "$kargmax"; then + lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'` + else + lt_cv_sys_max_cmd_len=32768 + fi + ;; + *) + lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` + if test -n "$lt_cv_sys_max_cmd_len" && \ + test undefined != "$lt_cv_sys_max_cmd_len"; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8 ; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \ + = "X$teststring$teststring"; } >/dev/null 2>&1 && + test $i != 17 # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi + ;; + esac + +fi + +if test -n $lt_cv_sys_max_cmd_len ; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5 +$as_echo "$lt_cv_sys_max_cmd_len" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5 +$as_echo "none" >&6; } +fi +max_cmd_len=$lt_cv_sys_max_cmd_len + + + + + + +: ${CP="cp -f"} +: ${MV="mv -f"} +: ${RM="rm -f"} + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands some XSI constructs" >&5 +$as_echo_n "checking whether the shell understands some XSI constructs... " >&6; } +# Try some XSI features +xsi_shell=no +( _lt_dummy="a/b/c" + test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \ + = c,a/b,b/c, \ + && eval 'test $(( 1 + 1 )) -eq 2 \ + && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \ + && xsi_shell=yes +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xsi_shell" >&5 +$as_echo "$xsi_shell" >&6; } + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands \"+=\"" >&5 +$as_echo_n "checking whether the shell understands \"+=\"... " >&6; } +lt_shell_append=no +( foo=bar; set foo baz; eval "$1+=\$2" && test "$foo" = barbaz ) \ + >/dev/null 2>&1 \ + && lt_shell_append=yes +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_shell_append" >&5 +$as_echo "$lt_shell_append" >&6; } + + +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + lt_unset=unset +else + lt_unset=false +fi + + + + + +# test EBCDIC or ASCII +case `echo X|tr X '\101'` in + A) # ASCII based system + # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr + lt_SP2NL='tr \040 \012' + lt_NL2SP='tr \015\012 \040\040' + ;; + *) # EBCDIC based system + lt_SP2NL='tr \100 \n' + lt_NL2SP='tr \r\n \100\100' + ;; +esac + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5 +$as_echo_n "checking how to convert $build file names to $host format... " >&6; } +if ${lt_cv_to_host_file_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 + ;; + esac + ;; + *-*-cygwin* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin + ;; + esac + ;; + * ) # unhandled hosts (and "normal" native builds) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; +esac + +fi + +to_host_file_cmd=$lt_cv_to_host_file_cmd +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5 +$as_echo "$lt_cv_to_host_file_cmd" >&6; } + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5 +$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; } +if ${lt_cv_to_tool_file_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + #assume ordinary cross tools, or native build. +lt_cv_to_tool_file_cmd=func_convert_file_noop +case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 + ;; + esac + ;; +esac + +fi + +to_tool_file_cmd=$lt_cv_to_tool_file_cmd +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5 +$as_echo "$lt_cv_to_tool_file_cmd" >&6; } + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5 +$as_echo_n "checking for $LD option to reload object files... " >&6; } +if ${lt_cv_ld_reload_flag+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_reload_flag='-r' +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5 +$as_echo "$lt_cv_ld_reload_flag" >&6; } +reload_flag=$lt_cv_ld_reload_flag +case $reload_flag in +"" | " "*) ;; +*) reload_flag=" $reload_flag" ;; +esac +reload_cmds='$LD$reload_flag -o $output$reload_objs' +case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + if test "$GCC" != yes; then + reload_cmds=false + fi + ;; + darwin*) + if test "$GCC" = yes; then + reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs' + else + reload_cmds='$LD$reload_flag -o $output$reload_objs' + fi + ;; +esac + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. +set dummy ${ac_tool_prefix}objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OBJDUMP"; then + ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OBJDUMP=$ac_cv_prog_OBJDUMP +if test -n "$OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 +$as_echo "$OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OBJDUMP"; then + ac_ct_OBJDUMP=$OBJDUMP + # Extract the first word of "objdump", so it can be a program name with args. +set dummy objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OBJDUMP"; then + ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OBJDUMP="objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP +if test -n "$ac_ct_OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 +$as_echo "$ac_ct_OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OBJDUMP" = x; then + OBJDUMP="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OBJDUMP=$ac_ct_OBJDUMP + fi +else + OBJDUMP="$ac_cv_prog_OBJDUMP" +fi + +test -z "$OBJDUMP" && OBJDUMP=objdump + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5 +$as_echo_n "checking how to recognize dependent libraries... " >&6; } +if ${lt_cv_deplibs_check_method+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_file_magic_cmd='$MAGIC_CMD' +lt_cv_file_magic_test_file= +lt_cv_deplibs_check_method='unknown' +# Need to set the preceding variable on all platforms that support +# interlibrary dependencies. +# 'none' -- dependencies not supported. +# `unknown' -- same as none, but documents that we really don't know. +# 'pass_all' -- all dependencies passed with no checks. +# 'test_compile' -- check by making test program. +# 'file_magic [[regex]]' -- check by looking for files in library path +# which responds to the $file_magic_cmd with a given extended regex. +# If you have `file' or equivalent on your system and you're not sure +# whether `pass_all' will *always* work, you probably want this one. + +case $host_os in +aix[4-9]*) + lt_cv_deplibs_check_method=pass_all + ;; + +beos*) + lt_cv_deplibs_check_method=pass_all + ;; + +bsdi[45]*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' + lt_cv_file_magic_cmd='/usr/bin/file -L' + lt_cv_file_magic_test_file=/shlib/libc.so + ;; + +cygwin*) + # func_win32_libid is a shell function defined in ltmain.sh + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + ;; + +mingw* | pw32*) + # Base MSYS/MinGW do not provide the 'file' command needed by + # func_win32_libid shell function, so use a weaker test based on 'objdump', + # unless we find 'file', for example because we are cross-compiling. + # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin. + if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + else + # Keep this pattern in sync with the one in func_win32_libid. + lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' + lt_cv_file_magic_cmd='$OBJDUMP -f' + fi + ;; + +cegcc*) + # use the weaker test based on 'objdump'. See mingw*. + lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | dragonfly*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +haiku*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20* | hpux11*) + lt_cv_file_magic_cmd=/usr/bin/file + case $host_cpu in + ia64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + hppa*64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]' + lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl + ;; + *) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library' + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + esac + ;; + +interix[3-9]*) + # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$' + ;; + +irix5* | irix6* | nonstopux*) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd* | netbsdelf*-gnu) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$' + fi + ;; + +newos6*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +*nto* | *qnx*) + lt_cv_deplibs_check_method=pass_all + ;; + +openbsd*) + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' + fi + ;; + +osf3* | osf4* | osf5*) + lt_cv_deplibs_check_method=pass_all + ;; + +rdos*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.3*) + case $host_vendor in + motorola) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + sequent) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' + ;; + sni) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib" + lt_cv_file_magic_test_file=/lib/libc.so + ;; + siemens) + lt_cv_deplibs_check_method=pass_all + ;; + pc) + lt_cv_deplibs_check_method=pass_all + ;; + esac + ;; + +tpf*) + lt_cv_deplibs_check_method=pass_all + ;; +esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5 +$as_echo "$lt_cv_deplibs_check_method" >&6; } + +file_magic_glob= +want_nocaseglob=no +if test "$build" = "$host"; then + case $host_os in + mingw* | pw32*) + if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then + want_nocaseglob=yes + else + file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"` + fi + ;; + esac +fi + +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method +test -z "$deplibs_check_method" && deplibs_check_method=unknown + + + + + + + + + + + + + + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. +set dummy ${ac_tool_prefix}dlltool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DLLTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DLLTOOL"; then + ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DLLTOOL=$ac_cv_prog_DLLTOOL +if test -n "$DLLTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 +$as_echo "$DLLTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_DLLTOOL"; then + ac_ct_DLLTOOL=$DLLTOOL + # Extract the first word of "dlltool", so it can be a program name with args. +set dummy dlltool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DLLTOOL"; then + ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DLLTOOL="dlltool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL +if test -n "$ac_ct_DLLTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 +$as_echo "$ac_ct_DLLTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_DLLTOOL" = x; then + DLLTOOL="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DLLTOOL=$ac_ct_DLLTOOL + fi +else + DLLTOOL="$ac_cv_prog_DLLTOOL" +fi + +test -z "$DLLTOOL" && DLLTOOL=dlltool + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5 +$as_echo_n "checking how to associate runtime and link libraries... " >&6; } +if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_sharedlib_from_linklib_cmd='unknown' + +case $host_os in +cygwin* | mingw* | pw32* | cegcc*) + # two different shell functions defined in ltmain.sh + # decide which to use based on capabilities of $DLLTOOL + case `$DLLTOOL --help 2>&1` in + *--identify-strict*) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib + ;; + *) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback + ;; + esac + ;; +*) + # fallback: assume linklib IS sharedlib + lt_cv_sharedlib_from_linklib_cmd="$ECHO" + ;; +esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5 +$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; } +sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd +test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO + + + + + + + +if test -n "$ac_tool_prefix"; then + for ac_prog in ar + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AR+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AR"; then + ac_cv_prog_AR="$AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AR="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AR=$ac_cv_prog_AR +if test -n "$AR"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 +$as_echo "$AR" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AR" && break + done +fi +if test -z "$AR"; then + ac_ct_AR=$AR + for ac_prog in ar +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_AR+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_AR"; then + ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_AR="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_AR=$ac_cv_prog_ac_ct_AR +if test -n "$ac_ct_AR"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5 +$as_echo "$ac_ct_AR" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_AR" && break +done + + if test "x$ac_ct_AR" = x; then + AR="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + AR=$ac_ct_AR + fi +fi + +: ${AR=ar} +: ${AR_FLAGS=cru} + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5 +$as_echo_n "checking for archiver @FILE support... " >&6; } +if ${lt_cv_ar_at_file+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ar_at_file=no + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + echo conftest.$ac_objext > conftest.lst + lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 + (eval $lt_ar_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if test "$ac_status" -eq 0; then + # Ensure the archiver fails upon bogus file names. + rm -f conftest.$ac_objext libconftest.a + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 + (eval $lt_ar_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if test "$ac_status" -ne 0; then + lt_cv_ar_at_file=@ + fi + fi + rm -f conftest.* libconftest.a + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5 +$as_echo "$lt_cv_ar_at_file" >&6; } + +if test "x$lt_cv_ar_at_file" = xno; then + archiver_list_spec= +else + archiver_list_spec=$lt_cv_ar_at_file +fi + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +test -z "$STRIP" && STRIP=: + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$RANLIB"; then + ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +RANLIB=$ac_cv_prog_RANLIB +if test -n "$RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 +$as_echo "$RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_RANLIB"; then + ac_ct_RANLIB=$RANLIB + # Extract the first word of "ranlib", so it can be a program name with args. +set dummy ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_RANLIB"; then + ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_RANLIB="ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB +if test -n "$ac_ct_RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 +$as_echo "$ac_ct_RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_RANLIB" = x; then + RANLIB=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + RANLIB=$ac_ct_RANLIB + fi +else + RANLIB="$ac_cv_prog_RANLIB" +fi + +test -z "$RANLIB" && RANLIB=: + + + + + + +# Determine commands to create old-style static archives. +old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' +old_postinstall_cmds='chmod 644 $oldlib' +old_postuninstall_cmds= + +if test -n "$RANLIB"; then + case $host_os in + openbsd*) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" + ;; + *) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" + ;; + esac + old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" +fi + +case $host_os in + darwin*) + lock_old_archive_extraction=yes ;; + *) + lock_old_archive_extraction=no ;; +esac + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + + +# Check for command to grab the raw symbol name followed by C symbol from nm. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5 +$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; } +if ${lt_cv_sys_global_symbol_pipe+:} false; then : + $as_echo_n "(cached) " >&6 +else + +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[BCDEGRST]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([_A-Za-z][_A-Za-z0-9]*\)' + +# Define system-specific variables. +case $host_os in +aix*) + symcode='[BCDT]' + ;; +cygwin* | mingw* | pw32* | cegcc*) + symcode='[ABCDGISTW]' + ;; +hpux*) + if test "$host_cpu" = ia64; then + symcode='[ABCDEGRST]' + fi + ;; +irix* | nonstopux*) + symcode='[BCDEGRST]' + ;; +osf*) + symcode='[BCDEGQRST]' + ;; +solaris*) + symcode='[BDRT]' + ;; +sco3.2v5*) + symcode='[DT]' + ;; +sysv4.2uw2*) + symcode='[DT]' + ;; +sysv5* | sco5v6* | unixware* | OpenUNIX*) + symcode='[ABDT]' + ;; +sysv4) + symcode='[DFNSTU]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +case `$NM -V 2>&1` in +*GNU* | *'with BFD'*) + symcode='[ABCDGIRSTW]' ;; +esac + +# Transform an extracted symbol line into a proper C declaration. +# Some systems (esp. on ia64) link data and code symbols differently, +# so use this general approach. +lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'" + +# Transform an extracted symbol line into symbol name and symbol address +lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\)[ ]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/ {\"\2\", (void *) \&\2},/p'" +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([^ ]*\)[ ]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \(lib[^ ]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/ {\"lib\2\", (void *) \&\2},/p'" + +# Handle CRLF in mingw tool chain +opt_cr= +case $build_os in +mingw*) + opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp + ;; +esac + +# Try without a prefix underscore, then with it. +for ac_symprfx in "" "_"; do + + # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. + symxfrm="\\1 $ac_symprfx\\2 \\2" + + # Write the raw and C identifiers. + if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Fake it for dumpbin and say T for any non-static function + # and D for any global variable. + # Also find C++ and __fastcall symbols from MSVC++, + # which start with @ or ?. + lt_cv_sys_global_symbol_pipe="$AWK '"\ +" {last_section=section; section=\$ 3};"\ +" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ +" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ +" \$ 0!~/External *\|/{next};"\ +" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ +" {if(hide[section]) next};"\ +" {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\ +" {split(\$ 0, a, /\||\r/); split(a[2], s)};"\ +" s[1]~/^[@?]/{print s[1], s[1]; next};"\ +" s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\ +" ' prfx=^$ac_symprfx" + else + lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" + fi + lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" + + # Check to see that the pipe works correctly. + pipe_works=no + + rm -f conftest* + cat > conftest.$ac_ext <<_LT_EOF +#ifdef __cplusplus +extern "C" { +#endif +char nm_test_var; +void nm_test_func(void); +void nm_test_func(void){} +#ifdef __cplusplus +} +#endif +int main(){nm_test_var='a';nm_test_func();return(0);} +_LT_EOF + + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + # Now try to grab the symbols. + nlist=conftest.nm + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5 + (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s "$nlist"; then + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if $GREP ' nm_test_var$' "$nlist" >/dev/null; then + if $GREP ' nm_test_func$' "$nlist" >/dev/null; then + cat <<_LT_EOF > conftest.$ac_ext +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE) +/* DATA imports from DLLs on WIN32 con't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT_DLSYM_CONST +#elif defined(__osf__) +/* This system does not cope well with relocations in const data. */ +# define LT_DLSYM_CONST +#else +# define LT_DLSYM_CONST const +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +_LT_EOF + # Now generate the symbol file. + eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' + + cat <<_LT_EOF >> conftest.$ac_ext + +/* The mapping between symbol names and symbols. */ +LT_DLSYM_CONST struct { + const char *name; + void *address; +} +lt__PROGRAM__LTX_preloaded_symbols[] = +{ + { "@PROGRAM@", (void *) 0 }, +_LT_EOF + $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext + cat <<\_LT_EOF >> conftest.$ac_ext + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt__PROGRAM__LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif +_LT_EOF + # Now try linking the two files. + mv conftest.$ac_objext conftstm.$ac_objext + lt_globsym_save_LIBS=$LIBS + lt_globsym_save_CFLAGS=$CFLAGS + LIBS="conftstm.$ac_objext" + CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag" + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest${ac_exeext}; then + pipe_works=yes + fi + LIBS=$lt_globsym_save_LIBS + CFLAGS=$lt_globsym_save_CFLAGS + else + echo "cannot find nm_test_func in $nlist" >&5 + fi + else + echo "cannot find nm_test_var in $nlist" >&5 + fi + else + echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5 + fi + else + echo "$progname: failed program was:" >&5 + cat conftest.$ac_ext >&5 + fi + rm -rf conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test "$pipe_works" = yes; then + break + else + lt_cv_sys_global_symbol_pipe= + fi +done + +fi + +if test -z "$lt_cv_sys_global_symbol_pipe"; then + lt_cv_sys_global_symbol_to_cdecl= +fi +if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5 +$as_echo "failed" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +fi + +# Response file support. +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + nm_file_list_spec='@' +elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then + nm_file_list_spec='@' +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5 +$as_echo_n "checking for sysroot... " >&6; } + +# Check whether --with-sysroot was given. +if test "${with_sysroot+set}" = set; then : + withval=$with_sysroot; +else + with_sysroot=no +fi + + +lt_sysroot= +case ${with_sysroot} in #( + yes) + if test "$GCC" = yes; then + lt_sysroot=`$CC --print-sysroot 2>/dev/null` + fi + ;; #( + /*) + lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` + ;; #( + no|'') + ;; #( + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${with_sysroot}" >&5 +$as_echo "${with_sysroot}" >&6; } + as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5 + ;; +esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5 +$as_echo "${lt_sysroot:-no}" >&6; } + + + + + +# Check whether --enable-libtool-lock was given. +if test "${enable_libtool_lock+set}" = set; then : + enableval=$enable_libtool_lock; +fi + +test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +ia64-*-hpux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.$ac_objext` in + *ELF-32*) + HPUX_IA64_MODE="32" + ;; + *ELF-64*) + HPUX_IA64_MODE="64" + ;; + esac + fi + rm -rf conftest* + ;; +*-*-irix6*) + # Find out which ABI we are using. + echo '#line '$LINENO' "configure"' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + if test "$lt_cv_prog_gnu_ld" = yes; then + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ +s390*-*linux*|s390*-*tpf*|sparc*-*linux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.o` in + *32-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_i386_fbsd" + ;; + x86_64-*linux*) + case `/usr/bin/file conftest.o` in + *x86-64*) + LD="${LD-ld} -m elf32_x86_64" + ;; + *) + LD="${LD-ld} -m elf_i386" + ;; + esac + ;; + powerpc64le-*) + LD="${LD-ld} -m elf32lppclinux" + ;; + powerpc64-*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_x86_64_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + powerpcle-*) + LD="${LD-ld} -m elf64lppc" + ;; + powerpc-*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*|s390*-*tpf*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -belf" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5 +$as_echo_n "checking whether the C compiler needs -belf... " >&6; } +if ${lt_cv_cc_needs_belf+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_cc_needs_belf=yes +else + lt_cv_cc_needs_belf=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5 +$as_echo "$lt_cv_cc_needs_belf" >&6; } + if test x"$lt_cv_cc_needs_belf" != x"yes"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS="$SAVE_CFLAGS" + fi + ;; +*-*solaris*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.o` in + *64-bit*) + case $lt_cv_prog_gnu_ld in + yes*) + case $host in + i?86-*-solaris*) + LD="${LD-ld} -m elf_x86_64" + ;; + sparc*-*-solaris*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + # GNU ld 2.21 introduced _sol2 emulations. Use them if available. + if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then + LD="${LD-ld}_sol2" + fi + ;; + *) + if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then + LD="${LD-ld} -64" + fi + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; +esac + +need_locks="$enable_libtool_lock" + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args. +set dummy ${ac_tool_prefix}mt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_MANIFEST_TOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$MANIFEST_TOOL"; then + ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL +if test -n "$MANIFEST_TOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5 +$as_echo "$MANIFEST_TOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_MANIFEST_TOOL"; then + ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL + # Extract the first word of "mt", so it can be a program name with args. +set dummy mt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_MANIFEST_TOOL"; then + ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_MANIFEST_TOOL="mt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL +if test -n "$ac_ct_MANIFEST_TOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5 +$as_echo "$ac_ct_MANIFEST_TOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_MANIFEST_TOOL" = x; then + MANIFEST_TOOL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL + fi +else + MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL" +fi + +test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5 +$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; } +if ${lt_cv_path_mainfest_tool+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_path_mainfest_tool=no + echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5 + $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out + cat conftest.err >&5 + if $GREP 'Manifest Tool' conftest.out > /dev/null; then + lt_cv_path_mainfest_tool=yes + fi + rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5 +$as_echo "$lt_cv_path_mainfest_tool" >&6; } +if test "x$lt_cv_path_mainfest_tool" != xyes; then + MANIFEST_TOOL=: +fi + + + + + + + case $host_os in + rhapsody* | darwin*) + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args. +set dummy ${ac_tool_prefix}dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DSYMUTIL"; then + ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DSYMUTIL=$ac_cv_prog_DSYMUTIL +if test -n "$DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 +$as_echo "$DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_DSYMUTIL"; then + ac_ct_DSYMUTIL=$DSYMUTIL + # Extract the first word of "dsymutil", so it can be a program name with args. +set dummy dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DSYMUTIL"; then + ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DSYMUTIL="dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL +if test -n "$ac_ct_DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5 +$as_echo "$ac_ct_DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_DSYMUTIL" = x; then + DSYMUTIL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DSYMUTIL=$ac_ct_DSYMUTIL + fi +else + DSYMUTIL="$ac_cv_prog_DSYMUTIL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args. +set dummy ${ac_tool_prefix}nmedit; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_NMEDIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NMEDIT"; then + ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +NMEDIT=$ac_cv_prog_NMEDIT +if test -n "$NMEDIT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5 +$as_echo "$NMEDIT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_NMEDIT"; then + ac_ct_NMEDIT=$NMEDIT + # Extract the first word of "nmedit", so it can be a program name with args. +set dummy nmedit; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_NMEDIT"; then + ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_NMEDIT="nmedit" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT +if test -n "$ac_ct_NMEDIT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5 +$as_echo "$ac_ct_NMEDIT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_NMEDIT" = x; then + NMEDIT=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + NMEDIT=$ac_ct_NMEDIT + fi +else + NMEDIT="$ac_cv_prog_NMEDIT" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args. +set dummy ${ac_tool_prefix}lipo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_LIPO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$LIPO"; then + ac_cv_prog_LIPO="$LIPO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_LIPO="${ac_tool_prefix}lipo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +LIPO=$ac_cv_prog_LIPO +if test -n "$LIPO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5 +$as_echo "$LIPO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_LIPO"; then + ac_ct_LIPO=$LIPO + # Extract the first word of "lipo", so it can be a program name with args. +set dummy lipo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_LIPO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_LIPO"; then + ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_LIPO="lipo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO +if test -n "$ac_ct_LIPO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5 +$as_echo "$ac_ct_LIPO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_LIPO" = x; then + LIPO=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + LIPO=$ac_ct_LIPO + fi +else + LIPO="$ac_cv_prog_LIPO" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args. +set dummy ${ac_tool_prefix}otool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OTOOL"; then + ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OTOOL="${ac_tool_prefix}otool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OTOOL=$ac_cv_prog_OTOOL +if test -n "$OTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5 +$as_echo "$OTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OTOOL"; then + ac_ct_OTOOL=$OTOOL + # Extract the first word of "otool", so it can be a program name with args. +set dummy otool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OTOOL"; then + ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OTOOL="otool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL +if test -n "$ac_ct_OTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5 +$as_echo "$ac_ct_OTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OTOOL" = x; then + OTOOL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OTOOL=$ac_ct_OTOOL + fi +else + OTOOL="$ac_cv_prog_OTOOL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args. +set dummy ${ac_tool_prefix}otool64; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OTOOL64+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OTOOL64"; then + ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OTOOL64=$ac_cv_prog_OTOOL64 +if test -n "$OTOOL64"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5 +$as_echo "$OTOOL64" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OTOOL64"; then + ac_ct_OTOOL64=$OTOOL64 + # Extract the first word of "otool64", so it can be a program name with args. +set dummy otool64; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OTOOL64"; then + ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OTOOL64="otool64" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64 +if test -n "$ac_ct_OTOOL64"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5 +$as_echo "$ac_ct_OTOOL64" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OTOOL64" = x; then + OTOOL64=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OTOOL64=$ac_ct_OTOOL64 + fi +else + OTOOL64="$ac_cv_prog_OTOOL64" +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5 +$as_echo_n "checking for -single_module linker flag... " >&6; } +if ${lt_cv_apple_cc_single_mod+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_apple_cc_single_mod=no + if test -z "${LT_MULTI_MODULE}"; then + # By default we will add the -single_module flag. You can override + # by either setting the environment variable LT_MULTI_MODULE + # non-empty at configure time, or by adding -multi_module to the + # link flags. + rm -rf libconftest.dylib* + echo "int foo(void){return 1;}" > conftest.c + echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ +-dynamiclib -Wl,-single_module conftest.c" >&5 + $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ + -dynamiclib -Wl,-single_module conftest.c 2>conftest.err + _lt_result=$? + # If there is a non-empty error log, and "single_module" + # appears in it, assume the flag caused a linker warning + if test -s conftest.err && $GREP single_module conftest.err; then + cat conftest.err >&5 + # Otherwise, if the output was created with a 0 exit code from + # the compiler, it worked. + elif test -f libconftest.dylib && test $_lt_result -eq 0; then + lt_cv_apple_cc_single_mod=yes + else + cat conftest.err >&5 + fi + rm -rf libconftest.dylib* + rm -f conftest.* + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5 +$as_echo "$lt_cv_apple_cc_single_mod" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5 +$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; } +if ${lt_cv_ld_exported_symbols_list+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_exported_symbols_list=no + save_LDFLAGS=$LDFLAGS + echo "_main" > conftest.sym + LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_ld_exported_symbols_list=yes +else + lt_cv_ld_exported_symbols_list=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS="$save_LDFLAGS" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5 +$as_echo "$lt_cv_ld_exported_symbols_list" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5 +$as_echo_n "checking for -force_load linker flag... " >&6; } +if ${lt_cv_ld_force_load+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_force_load=no + cat > conftest.c << _LT_EOF +int forced_loaded() { return 2;} +_LT_EOF + echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5 + $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5 + echo "$AR cru libconftest.a conftest.o" >&5 + $AR cru libconftest.a conftest.o 2>&5 + echo "$RANLIB libconftest.a" >&5 + $RANLIB libconftest.a 2>&5 + cat > conftest.c << _LT_EOF +int main() { return 0;} +_LT_EOF + echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5 + $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err + _lt_result=$? + if test -s conftest.err && $GREP force_load conftest.err; then + cat conftest.err >&5 + elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then + lt_cv_ld_force_load=yes + else + cat conftest.err >&5 + fi + rm -f conftest.err libconftest.a conftest conftest.c + rm -rf conftest.dSYM + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5 +$as_echo "$lt_cv_ld_force_load" >&6; } + case $host_os in + rhapsody* | darwin1.[012]) + _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;; + darwin1.*) + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; + darwin*) # darwin 5.x on + # if running on 10.5 or later, the deployment target defaults + # to the OS version, if on x86, and 10.4, the deployment + # target defaults to 10.4. Don't you love it? + case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in + 10.0,*86*-darwin8*|10.0,*-darwin[91]*) + _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;; + 10.[012]*) + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; + 10.*) + _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;; + esac + ;; + esac + if test "$lt_cv_apple_cc_single_mod" = "yes"; then + _lt_dar_single_mod='$single_module' + fi + if test "$lt_cv_ld_exported_symbols_list" = "yes"; then + _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym' + else + _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}' + fi + if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then + _lt_dsymutil='~$DSYMUTIL $lib || :' + else + _lt_dsymutil= + fi + ;; + esac + +for ac_header in dlfcn.h +do : + ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default +" +if test "x$ac_cv_header_dlfcn_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_DLFCN_H 1 +_ACEOF + +fi + +done + + + + + +# Set options +enable_dlopen=yes + + + + + enable_win32_dll=no + + + + + +# Check whether --with-pic was given. +if test "${with_pic+set}" = set; then : + withval=$with_pic; lt_p=${PACKAGE-default} + case $withval in + yes|no) pic_mode=$withval ;; + *) + pic_mode=default + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for lt_pkg in $withval; do + IFS="$lt_save_ifs" + if test "X$lt_pkg" = "X$lt_p"; then + pic_mode=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac +else + pic_mode=default +fi + + +test -z "$pic_mode" && pic_mode=default + + + + + + + + # Check whether --enable-fast-install was given. +if test "${enable_fast_install+set}" = set; then : + enableval=$enable_fast_install; p=${PACKAGE-default} + case $enableval in + yes) enable_fast_install=yes ;; + no) enable_fast_install=no ;; + *) + enable_fast_install=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_fast_install=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac +else + enable_fast_install=yes +fi + + + + + + + + + + + +# This can be used to rebuild libtool when needed +LIBTOOL_DEPS="$ltmain" + +# Always use our own libtool. +LIBTOOL='$(SHELL) $(top_builddir)/libtool' + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +test -z "$LN_S" && LN_S="ln -s" + + + + + + + + + + + + + + +if test -n "${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5 +$as_echo_n "checking for objdir... " >&6; } +if ${lt_cv_objdir+:} false; then : + $as_echo_n "(cached) " >&6 +else + rm -f .libs 2>/dev/null +mkdir .libs 2>/dev/null +if test -d .libs; then + lt_cv_objdir=.libs +else + # MS-DOS does not allow filenames that begin with a dot. + lt_cv_objdir=_libs +fi +rmdir .libs 2>/dev/null +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5 +$as_echo "$lt_cv_objdir" >&6; } +objdir=$lt_cv_objdir + + + + + +cat >>confdefs.h <<_ACEOF +#define LT_OBJDIR "$lt_cv_objdir/" +_ACEOF + + + + +case $host_os in +aix3*) + # AIX sometimes has problems with the GCC collect2 program. For some + # reason, if we set the COLLECT_NAMES environment variable, the problems + # vanish in a puff of smoke. + if test "X${COLLECT_NAMES+set}" != Xset; then + COLLECT_NAMES= + export COLLECT_NAMES + fi + ;; +esac + +# Global variables: +ofile=libtool +can_build_shared=yes + +# All known linkers require a `.a' archive for static linking (except MSVC, +# which needs '.lib'). +libext=a + +with_gnu_ld="$lt_cv_prog_gnu_ld" + +old_CC="$CC" +old_CFLAGS="$CFLAGS" + +# Set sane defaults for various variables +test -z "$CC" && CC=cc +test -z "$LTCC" && LTCC=$CC +test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS +test -z "$LD" && LD=ld +test -z "$ac_objext" && ac_objext=o + +for cc_temp in $compiler""; do + case $cc_temp in + compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; + distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; + \-*) ;; + *) break;; + esac +done +cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` + + +# Only perform the check for file, if the check method requires it +test -z "$MAGIC_CMD" && MAGIC_CMD=file +case $deplibs_check_method in +file_magic*) + if test "$file_magic_cmd" = '$MAGIC_CMD'; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5 +$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; } +if ${lt_cv_path_MAGIC_CMD+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MAGIC_CMD in +[\\/*] | ?:[\\/]*) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD="$MAGIC_CMD" + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" + for ac_dir in $ac_dummy; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/${ac_tool_prefix}file; then + lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD="$lt_cv_path_MAGIC_CMD" + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS="$lt_save_ifs" + MAGIC_CMD="$lt_save_MAGIC_CMD" + ;; +esac +fi + +MAGIC_CMD="$lt_cv_path_MAGIC_CMD" +if test -n "$MAGIC_CMD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 +$as_echo "$MAGIC_CMD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + + + +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5 +$as_echo_n "checking for file... " >&6; } +if ${lt_cv_path_MAGIC_CMD+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MAGIC_CMD in +[\\/*] | ?:[\\/]*) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD="$MAGIC_CMD" + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" + for ac_dir in $ac_dummy; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/file; then + lt_cv_path_MAGIC_CMD="$ac_dir/file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD="$lt_cv_path_MAGIC_CMD" + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS="$lt_save_ifs" + MAGIC_CMD="$lt_save_MAGIC_CMD" + ;; +esac +fi + +MAGIC_CMD="$lt_cv_path_MAGIC_CMD" +if test -n "$MAGIC_CMD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 +$as_echo "$MAGIC_CMD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + else + MAGIC_CMD=: + fi +fi + + fi + ;; +esac + +# Use C for the default configuration in the libtool script + +lt_save_CC="$CC" +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +# Source file extension for C test sources. +ac_ext=c + +# Object file extension for compiled C test sources. +objext=o +objext=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="int some_variable = 0;" + +# Code to be used in simple link tests +lt_simple_link_test_code='int main(){return(0);}' + + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + +# Save the default compiler, since it gets overwritten when the other +# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. +compiler_DEFAULT=$CC + +# save warnings/boilerplate of simple test code +ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* + +ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* + + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + +lt_prog_compiler_no_builtin_flag= + +if test "$GCC" = yes; then + case $cc_basename in + nvcc*) + lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;; + *) + lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;; + esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5 +$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; } +if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_rtti_exceptions=no + ac_outfile=conftest.$ac_objext + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="-fno-rtti -fno-exceptions" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_rtti_exceptions=yes + fi + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5 +$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; } + +if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then + lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions" +else + : +fi + +fi + + + + + + + lt_prog_compiler_wl= +lt_prog_compiler_pic= +lt_prog_compiler_static= + + + if test "$GCC" = yes; then + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_static='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static='-Bstatic' + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + lt_prog_compiler_pic='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the `-m68020' flag to GCC prevents building anything better, + # like `-m68040'. + lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + lt_prog_compiler_pic='-DDLL_EXPORT' + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + lt_prog_compiler_pic='-fno-common' + ;; + + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + lt_prog_compiler_static= + ;; + + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic='-fPIC' + ;; + esac + ;; + + interix[3-9]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + + msdosdjgpp*) + # Just because we use GCC doesn't mean we suddenly get shared libraries + # on systems that don't support them. + lt_prog_compiler_can_build_shared=no + enable_shared=no + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic='-fPIC -shared' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + lt_prog_compiler_pic=-Kconform_pic + fi + ;; + + *) + lt_prog_compiler_pic='-fPIC' + ;; + esac + + case $cc_basename in + nvcc*) # Cuda Compiler Driver 2.2 + lt_prog_compiler_wl='-Xlinker ' + if test -n "$lt_prog_compiler_pic"; then + lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic" + fi + ;; + esac + else + # PORTME Check for flag to pass linker flags through the system compiler. + case $host_os in + aix*) + lt_prog_compiler_wl='-Wl,' + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static='-Bstatic' + else + lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp' + fi + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + lt_prog_compiler_pic='-DDLL_EXPORT' + ;; + + hpux9* | hpux10* | hpux11*) + lt_prog_compiler_wl='-Wl,' + # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but + # not for PA HP-UX. + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic='+Z' + ;; + esac + # Is there a better lt_prog_compiler_static that works with the bundled CC? + lt_prog_compiler_static='${wl}-a ${wl}archive' + ;; + + irix5* | irix6* | nonstopux*) + lt_prog_compiler_wl='-Wl,' + # PIC (with -KPIC) is the default. + lt_prog_compiler_static='-non_shared' + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + # old Intel for x86_64 which still supported -KPIC. + ecc*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-static' + ;; + # icc used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + icc* | ifort*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + # Lahey Fortran 8.1. + lf95*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='--shared' + lt_prog_compiler_static='--static' + ;; + nagfor*) + # NAG Fortran compiler + lt_prog_compiler_wl='-Wl,-Wl,,' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group compilers (*not* the Pentium gcc compiler, + # which looks to be a dead project) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fpic' + lt_prog_compiler_static='-Bstatic' + ;; + ccc*) + lt_prog_compiler_wl='-Wl,' + # All Alpha code is PIC. + lt_prog_compiler_static='-non_shared' + ;; + xl* | bgxl* | bgf* | mpixl*) + # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-qpic' + lt_prog_compiler_static='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*) + # Sun Fortran 8.3 passes all unrecognized flags to the linker + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='' + ;; + *Sun\ F* | *Sun*Fortran*) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='-Qoption ld ' + ;; + *Sun\ C*) + # Sun C 5.9 + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='-Wl,' + ;; + *Intel*\ [CF]*Compiler*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + *Portland\ Group*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fpic' + lt_prog_compiler_static='-Bstatic' + ;; + esac + ;; + esac + ;; + + newsos6) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic='-fPIC -shared' + ;; + + osf3* | osf4* | osf5*) + lt_prog_compiler_wl='-Wl,' + # All OSF/1 code is PIC. + lt_prog_compiler_static='-non_shared' + ;; + + rdos*) + lt_prog_compiler_static='-non_shared' + ;; + + solaris*) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + case $cc_basename in + f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) + lt_prog_compiler_wl='-Qoption ld ';; + *) + lt_prog_compiler_wl='-Wl,';; + esac + ;; + + sunos4*) + lt_prog_compiler_wl='-Qoption ld ' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + + sysv4 | sysv4.2uw2* | sysv4.3*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + sysv4*MP*) + if test -d /usr/nec ;then + lt_prog_compiler_pic='-Kconform_pic' + lt_prog_compiler_static='-Bstatic' + fi + ;; + + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + unicos*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_can_build_shared=no + ;; + + uts4*) + lt_prog_compiler_pic='-pic' + lt_prog_compiler_static='-Bstatic' + ;; + + *) + lt_prog_compiler_can_build_shared=no + ;; + esac + fi + +case $host_os in + # For platforms which do not support PIC, -DPIC is meaningless: + *djgpp*) + lt_prog_compiler_pic= + ;; + *) + lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC" + ;; +esac + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5 +$as_echo_n "checking for $compiler option to produce PIC... " >&6; } +if ${lt_cv_prog_compiler_pic+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic=$lt_prog_compiler_pic +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5 +$as_echo "$lt_cv_prog_compiler_pic" >&6; } +lt_prog_compiler_pic=$lt_cv_prog_compiler_pic + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$lt_prog_compiler_pic"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5 +$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; } +if ${lt_cv_prog_compiler_pic_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic_works=no + ac_outfile=conftest.$ac_objext + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="$lt_prog_compiler_pic -DPIC" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_pic_works=yes + fi + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5 +$as_echo "$lt_cv_prog_compiler_pic_works" >&6; } + +if test x"$lt_cv_prog_compiler_pic_works" = xyes; then + case $lt_prog_compiler_pic in + "" | " "*) ;; + *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;; + esac +else + lt_prog_compiler_pic= + lt_prog_compiler_can_build_shared=no +fi + +fi + + + + + + + + + + + +# +# Check to make sure the static flag actually works. +# +wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5 +$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; } +if ${lt_cv_prog_compiler_static_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_static_works=no + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS $lt_tmp_static_flag" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&5 + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_static_works=yes + fi + else + lt_cv_prog_compiler_static_works=yes + fi + fi + $RM -r conftest* + LDFLAGS="$save_LDFLAGS" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5 +$as_echo "$lt_cv_prog_compiler_static_works" >&6; } + +if test x"$lt_cv_prog_compiler_static_works" = xyes; then + : +else + lt_prog_compiler_static= +fi + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5 +$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; } +if ${lt_cv_prog_compiler_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_c_o=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + lt_cv_prog_compiler_c_o=yes + fi + fi + chmod u+w . 2>&5 + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5 +$as_echo "$lt_cv_prog_compiler_c_o" >&6; } + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5 +$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; } +if ${lt_cv_prog_compiler_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_c_o=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + lt_cv_prog_compiler_c_o=yes + fi + fi + chmod u+w . 2>&5 + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5 +$as_echo "$lt_cv_prog_compiler_c_o" >&6; } + + + + +hard_links="nottested" +if test "$lt_cv_prog_compiler_c_o" = no && test "$need_locks" != no; then + # do not overwrite the value of need_locks provided by the user + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5 +$as_echo_n "checking if we can lock with hard links... " >&6; } + hard_links=yes + $RM conftest* + ln conftest.a conftest.b 2>/dev/null && hard_links=no + touch conftest.a + ln conftest.a conftest.b 2>&5 || hard_links=no + ln conftest.a conftest.b 2>/dev/null && hard_links=no + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5 +$as_echo "$hard_links" >&6; } + if test "$hard_links" = no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5 +$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;} + need_locks=warn + fi +else + need_locks=no +fi + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5 +$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; } + + runpath_var= + allow_undefined_flag= + always_export_symbols=no + archive_cmds= + archive_expsym_cmds= + compiler_needs_object=no + enable_shared_with_static_runtimes=no + export_dynamic_flag_spec= + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + hardcode_automatic=no + hardcode_direct=no + hardcode_direct_absolute=no + hardcode_libdir_flag_spec= + hardcode_libdir_separator= + hardcode_minus_L=no + hardcode_shlibpath_var=unsupported + inherit_rpath=no + link_all_deplibs=unknown + module_cmds= + module_expsym_cmds= + old_archive_from_new_cmds= + old_archive_from_expsyms_cmds= + thread_safe_flag_spec= + whole_archive_flag_spec= + # include_expsyms should be a list of space-separated symbols to be *always* + # included in the symbol list + include_expsyms= + # exclude_expsyms can be an extended regexp of symbols to exclude + # it will be wrapped by ` (' and `)$', so one must not match beginning or + # end of line. Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc', + # as well as any symbol that contains `d'. + exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*' + # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out + # platforms (ab)use it in PIC code, but their linkers get confused if + # the symbol is explicitly referenced. Since portable code cannot + # rely on this symbol name, it's probably fine to never include it in + # preloaded symbol tables. + # Exclude shared library initialization/finalization symbols. + extract_expsyms_cmds= + + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + # FIXME: the MSVC++ port hasn't been tested in a loooong time + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + if test "$GCC" != yes; then + with_gnu_ld=no + fi + ;; + interix*) + # we just hope/assume this is gcc and not c89 (= MSVC++) + with_gnu_ld=yes + ;; + openbsd*) + with_gnu_ld=no + ;; + linux* | k*bsd*-gnu | gnu*) + link_all_deplibs=no + ;; + esac + + ld_shlibs=yes + + # On some targets, GNU ld is compatible enough with the native linker + # that we're better off using the native interface for both. + lt_use_gnu_ld_interface=no + if test "$with_gnu_ld" = yes; then + case $host_os in + aix*) + # The AIX port of GNU ld has always aspired to compatibility + # with the native linker. However, as the warning in the GNU ld + # block says, versions before 2.19.5* couldn't really create working + # shared libraries, regardless of the interface used. + case `$LD -v 2>&1` in + *\ \(GNU\ Binutils\)\ 2.19.5*) ;; + *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;; + *\ \(GNU\ Binutils\)\ [3-9]*) ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + fi + + if test "$lt_use_gnu_ld_interface" = yes; then + # If archive_cmds runs LD, not CC, wlarc should be empty + wlarc='${wl}' + + # Set some defaults for GNU ld with shared library support. These + # are reset later if shared libraries are not supported. Putting them + # here allows them to be overridden if necessary. + runpath_var=LD_RUN_PATH + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + export_dynamic_flag_spec='${wl}--export-dynamic' + # ancient GNU ld didn't support --whole-archive et. al. + if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then + whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive' + else + whole_archive_flag_spec= + fi + supports_anon_versioning=no + case `$LD -v 2>&1` in + *GNU\ gold*) supports_anon_versioning=yes ;; + *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11 + *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ... + *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ... + *\ 2.11.*) ;; # other 2.11 versions + *) supports_anon_versioning=yes ;; + esac + + # See if GNU ld supports shared libraries. + case $host_os in + aix[3-9]*) + # On AIX/PPC, the GNU linker is very broken + if test "$host_cpu" != ia64; then + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: the GNU linker, at least up to release 2.19, is reported +*** to be unable to reliably create shared libraries on AIX. +*** Therefore, libtool is disabling shared libraries support. If you +*** really care for shared libraries, you may want to install binutils +*** 2.20 or above, or modify your PATH so that a non-GNU linker is found. +*** You will then need to restart the configuration process. + +_LT_EOF + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='' + ;; + m68k) + archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + ;; + esac + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + allow_undefined_flag=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + else + ld_shlibs=no + fi + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless, + # as there is no search path for DLLs. + hardcode_libdir_flag_spec='-L$libdir' + export_dynamic_flag_spec='${wl}--export-all-symbols' + allow_undefined_flag=unsupported + always_export_symbols=no + enable_shared_with_static_runtimes=yes + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols' + exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname' + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file (1st line + # is EXPORTS), use it as is; otherwise, prepend... + archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + ld_shlibs=no + fi + ;; + + haiku*) + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + link_all_deplibs=yes + ;; + + interix[3-9]*) + hardcode_direct=no + hardcode_shlibpath_var=no + hardcode_libdir_flag_spec='${wl}-rpath,$libdir' + export_dynamic_flag_spec='${wl}-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu) + tmp_diet=no + if test "$host_os" = linux-dietlibc; then + case $cc_basename in + diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn) + esac + fi + if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \ + && test "$tmp_diet" = no + then + tmp_addflag=' $pic_flag' + tmp_sharedflag='-shared' + case $cc_basename,$host_cpu in + pgcc*) # Portland Group C compiler + whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + tmp_addflag=' $pic_flag' + ;; + pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group f77 and f90 compilers + whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + tmp_addflag=' $pic_flag -Mnomain' ;; + ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64 + tmp_addflag=' -i_dynamic' ;; + efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64 + tmp_addflag=' -i_dynamic -nofor_main' ;; + ifc* | ifort*) # Intel Fortran compiler + tmp_addflag=' -nofor_main' ;; + lf95*) # Lahey Fortran 8.1 + whole_archive_flag_spec= + tmp_sharedflag='--shared' ;; + xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below) + tmp_sharedflag='-qmkshrobj' + tmp_addflag= ;; + nvcc*) # Cuda Compiler Driver 2.2 + whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + compiler_needs_object=yes + ;; + esac + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C 5.9 + whole_archive_flag_spec='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + compiler_needs_object=yes + tmp_sharedflag='-G' ;; + *Sun\ F*) # Sun Fortran 8.3 + tmp_sharedflag='-G' ;; + esac + archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + + if test "x$supports_anon_versioning" = xyes; then + archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib' + fi + + case $cc_basename in + xlf* | bgf* | bgxlf* | mpixlf*) + # IBM XL Fortran 10.1 on PPC cannot create shared libs itself + whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib' + if test "x$supports_anon_versioning" = xyes; then + archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib' + fi + ;; + esac + else + ld_shlibs=no + fi + ;; + + netbsd* | netbsdelf*-gnu) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' + wlarc= + else + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + fi + ;; + + solaris*) + if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: The releases 2.8.* of the GNU linker cannot reliably +*** create shared libraries on Solaris systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.9.1 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + + sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) + case `$LD -v 2>&1` in + *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*) + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not +*** reliably create shared libraries on SCO systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.16.91.0.3 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + ;; + *) + # For security reasons, it is highly recommended that you always + # use absolute paths for naming shared libraries, and exclude the + # DT_RUNPATH tag from executables and libraries. But doing so + # requires that you compile everything twice, which is a pain. + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + esac + ;; + + sunos4*) + archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' + wlarc= + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + *) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + esac + + if test "$ld_shlibs" = no; then + runpath_var= + hardcode_libdir_flag_spec= + export_dynamic_flag_spec= + whole_archive_flag_spec= + fi + else + # PORTME fill in a description of your system's linker (not GNU ld) + case $host_os in + aix3*) + allow_undefined_flag=unsupported + always_export_symbols=yes + archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' + # Note: this linker hardcodes the directories in LIBPATH if there + # are no directories specified by -L. + hardcode_minus_L=yes + if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then + # Neither direct hardcoding nor static linking is supported with a + # broken collect2. + hardcode_direct=unsupported + fi + ;; + + aix[4-9]*) + if test "$host_cpu" = ia64; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag="" + else + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to AIX nm, but means don't demangle with GNU nm + # Also, AIX nm treats weak defined symbols like other global + # defined symbols, whereas GNU nm marks them as "W". + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + else + export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + fi + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # need to do runtime linking. + case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*) + for ld_flag in $LDFLAGS; do + if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then + aix_use_runtimelinking=yes + break + fi + done + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + archive_cmds='' + hardcode_direct=yes + hardcode_direct_absolute=yes + hardcode_libdir_separator=':' + link_all_deplibs=yes + file_list_spec='${wl}-f,' + + if test "$GCC" = yes; then + case $host_os in aix4.[012]|aix4.[012].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`${CC} -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + hardcode_direct=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + hardcode_minus_L=yes + hardcode_libdir_flag_spec='-L$libdir' + hardcode_libdir_separator= + fi + ;; + esac + shared_flag='-shared' + if test "$aix_use_runtimelinking" = yes; then + shared_flag="$shared_flag "'${wl}-G' + fi + link_all_deplibs=no + else + # not using gcc + if test "$host_cpu" = ia64; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test "$aix_use_runtimelinking" = yes; then + shared_flag='${wl}-G' + else + shared_flag='${wl}-bM:SRE' + fi + fi + fi + + export_dynamic_flag_spec='${wl}-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to export. + always_export_symbols=yes + if test "$aix_use_runtimelinking" = yes; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + allow_undefined_flag='-berok' + # Determine the default libpath from the value encoded in an + # empty executable. + if test "${lt_cv_aix_libpath+set}" = set; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath_+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_="/usr/lib:/lib" + fi + +fi + + aix_libpath=$lt_cv_aix_libpath_ +fi + + hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath" + archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag" + else + if test "$host_cpu" = ia64; then + hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib' + allow_undefined_flag="-z nodefs" + archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + if test "${lt_cv_aix_libpath+set}" = set; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath_+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_="/usr/lib:/lib" + fi + +fi + + aix_libpath=$lt_cv_aix_libpath_ +fi + + hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + no_undefined_flag=' ${wl}-bernotok' + allow_undefined_flag=' ${wl}-berok' + if test "$with_gnu_ld" = yes; then + # We only use this code for GNU lds that support --whole-archive. + whole_archive_flag_spec='${wl}--whole-archive$convenience ${wl}--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + whole_archive_flag_spec='$convenience' + fi + archive_cmds_need_lc=yes + # This is similar to how AIX traditionally builds its shared libraries. + archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname' + fi + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='' + ;; + m68k) + archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + ;; + esac + ;; + + bsdi[45]*) + export_dynamic_flag_spec=-rdynamic + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + case $cc_basename in + cl*) + # Native MSVC + hardcode_libdir_flag_spec=' ' + allow_undefined_flag=unsupported + always_export_symbols=yes + file_list_spec='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames=' + archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp; + else + sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, )='true' + enable_shared_with_static_runtimes=yes + exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' + # Don't use ranlib + old_postinstall_cmds='chmod 644 $oldlib' + postlink_cmds='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile="$lt_outputfile.exe" + lt_tool_outputfile="$lt_tool_outputfile.exe" + ;; + esac~ + if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # Assume MSVC wrapper + hardcode_libdir_flag_spec=' ' + allow_undefined_flag=unsupported + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' + # The linker will automatically build a .lib file if we build a DLL. + old_archive_from_new_cmds='true' + # FIXME: Should let the user specify the lib program. + old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs' + enable_shared_with_static_runtimes=yes + ;; + esac + ;; + + darwin* | rhapsody*) + + + archive_cmds_need_lc=no + hardcode_direct=no + hardcode_automatic=yes + hardcode_shlibpath_var=unsupported + if test "$lt_cv_ld_force_load" = "yes"; then + whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + + else + whole_archive_flag_spec='' + fi + link_all_deplibs=yes + allow_undefined_flag="$_lt_dar_allow_undefined" + case $cc_basename in + ifort*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test "$_lt_dar_can_shared" = "yes"; then + output_verbose_link_cmd=func_echo_all + archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}" + module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}" + archive_expsym_cmds="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}" + module_expsym_cmds="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}" + + else + ld_shlibs=no + fi + + ;; + + dgux*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_shlibpath_var=no + ;; + + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor + # support. Future versions do this automatically, but an explicit c++rt0.o + # does not break anything, and helps significantly (at the cost of a little + # extra space). + freebsd2.2*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + # Unfortunately, older versions of FreeBSD 2 do not have this feature. + freebsd2.*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes + hardcode_minus_L=yes + hardcode_shlibpath_var=no + ;; + + # FreeBSD 3 and greater uses gcc -shared to do shared libraries. + freebsd* | dragonfly*) + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + hpux9*) + if test "$GCC" = yes; then + archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + else + archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + fi + hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' + hardcode_libdir_separator=: + hardcode_direct=yes + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + export_dynamic_flag_spec='${wl}-E' + ;; + + hpux10*) + if test "$GCC" = yes && test "$with_gnu_ld" = no; then + archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' + fi + if test "$with_gnu_ld" = no; then + hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' + hardcode_libdir_separator=: + hardcode_direct=yes + hardcode_direct_absolute=yes + export_dynamic_flag_spec='${wl}-E' + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + fi + ;; + + hpux11*) + if test "$GCC" = yes && test "$with_gnu_ld" = no; then + case $host_cpu in + hppa*64*) + archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + else + case $host_cpu in + hppa*64*) + archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + + # Older versions of the 11.00 compiler do not understand -b yet + # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5 +$as_echo_n "checking if $CC understands -b... " >&6; } +if ${lt_cv_prog_compiler__b+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler__b=no + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -b" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&5 + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler__b=yes + fi + else + lt_cv_prog_compiler__b=yes + fi + fi + $RM -r conftest* + LDFLAGS="$save_LDFLAGS" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5 +$as_echo "$lt_cv_prog_compiler__b" >&6; } + +if test x"$lt_cv_prog_compiler__b" = xyes; then + archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' +else + archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' +fi + + ;; + esac + fi + if test "$with_gnu_ld" = no; then + hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' + hardcode_libdir_separator=: + + case $host_cpu in + hppa*64*|ia64*) + hardcode_direct=no + hardcode_shlibpath_var=no + ;; + *) + hardcode_direct=yes + hardcode_direct_absolute=yes + export_dynamic_flag_spec='${wl}-E' + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + ;; + esac + fi + ;; + + irix5* | irix6* | nonstopux*) + if test "$GCC" = yes; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + # Try to use the -exported_symbol ld option, if it does not + # work, assume that -exports_file does not work either and + # implicitly export all symbols. + # This should be the same for all languages, so no per-tag cache variable. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5 +$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; } +if ${lt_cv_irix_exported_symbol+:} false; then : + $as_echo_n "(cached) " >&6 +else + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int foo (void) { return 0; } +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_irix_exported_symbol=yes +else + lt_cv_irix_exported_symbol=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS="$save_LDFLAGS" +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5 +$as_echo "$lt_cv_irix_exported_symbol" >&6; } + if test "$lt_cv_irix_exported_symbol" = yes; then + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib' + fi + else + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib' + fi + archive_cmds_need_lc='no' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + hardcode_libdir_separator=: + inherit_rpath=yes + link_all_deplibs=yes + ;; + + netbsd* | netbsdelf*-gnu) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out + else + archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF + fi + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + newsos6) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + hardcode_libdir_separator=: + hardcode_shlibpath_var=no + ;; + + *nto* | *qnx*) + ;; + + openbsd*) + if test -f /usr/libexec/ld.so; then + hardcode_direct=yes + hardcode_shlibpath_var=no + hardcode_direct_absolute=yes + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols' + hardcode_libdir_flag_spec='${wl}-rpath,$libdir' + export_dynamic_flag_spec='${wl}-E' + else + case $host_os in + openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-R$libdir' + ;; + *) + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + hardcode_libdir_flag_spec='${wl}-rpath,$libdir' + ;; + esac + fi + else + ld_shlibs=no + fi + ;; + + os2*) + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + allow_undefined_flag=unsupported + archive_cmds='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def' + old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def' + ;; + + osf3*) + if test "$GCC" = yes; then + allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*' + archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + else + allow_undefined_flag=' -expect_unresolved \*' + archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + fi + archive_cmds_need_lc='no' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + hardcode_libdir_separator=: + ;; + + osf4* | osf5*) # as osf3* with the addition of -msym flag + if test "$GCC" = yes; then + allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*' + archive_cmds='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + else + allow_undefined_flag=' -expect_unresolved \*' + archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ + $CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp' + + # Both c and cxx compiler support -rpath directly + hardcode_libdir_flag_spec='-rpath $libdir' + fi + archive_cmds_need_lc='no' + hardcode_libdir_separator=: + ;; + + solaris*) + no_undefined_flag=' -z defs' + if test "$GCC" = yes; then + wlarc='${wl}' + archive_cmds='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + else + case `$CC -V 2>&1` in + *"Compilers 5.0"*) + wlarc='' + archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' + ;; + *) + wlarc='${wl}' + archive_cmds='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + ;; + esac + fi + hardcode_libdir_flag_spec='-R$libdir' + hardcode_shlibpath_var=no + case $host_os in + solaris2.[0-5] | solaris2.[0-5].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands `-z linker_flag'. GCC discards it without `$wl', + # but is careful enough not to reorder. + # Supported since Solaris 2.6 (maybe 2.5.1?) + if test "$GCC" = yes; then + whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract' + else + whole_archive_flag_spec='-z allextract$convenience -z defaultextract' + fi + ;; + esac + link_all_deplibs=yes + ;; + + sunos4*) + if test "x$host_vendor" = xsequent; then + # Use $CC to link under sequent, because it throws in some extra .o + # files that make .init and .fini sections work. + archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' + fi + hardcode_libdir_flag_spec='-L$libdir' + hardcode_direct=yes + hardcode_minus_L=yes + hardcode_shlibpath_var=no + ;; + + sysv4) + case $host_vendor in + sni) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes # is this really true??? + ;; + siemens) + ## LD is ld it makes a PLAMLIB + ## CC just makes a GrossModule. + archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags' + reload_cmds='$CC -r -o $output$reload_objs' + hardcode_direct=no + ;; + motorola) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=no #Motorola manual says yes, but my tests say they lie + ;; + esac + runpath_var='LD_RUN_PATH' + hardcode_shlibpath_var=no + ;; + + sysv4.3*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_shlibpath_var=no + export_dynamic_flag_spec='-Bexport' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_shlibpath_var=no + runpath_var=LD_RUN_PATH + hardcode_runpath_var=yes + ld_shlibs=yes + fi + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*) + no_undefined_flag='${wl}-z,text' + archive_cmds_need_lc=no + hardcode_shlibpath_var=no + runpath_var='LD_RUN_PATH' + + if test "$GCC" = yes; then + archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We can NOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + no_undefined_flag='${wl}-z,text' + allow_undefined_flag='${wl}-z,nodefs' + archive_cmds_need_lc=no + hardcode_shlibpath_var=no + hardcode_libdir_flag_spec='${wl}-R,$libdir' + hardcode_libdir_separator=':' + link_all_deplibs=yes + export_dynamic_flag_spec='${wl}-Bexport' + runpath_var='LD_RUN_PATH' + + if test "$GCC" = yes; then + archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + uts4*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_shlibpath_var=no + ;; + + *) + ld_shlibs=no + ;; + esac + + if test x$host_vendor = xsni; then + case $host in + sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + export_dynamic_flag_spec='${wl}-Blargedynsym' + ;; + esac + fi + fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5 +$as_echo "$ld_shlibs" >&6; } +test "$ld_shlibs" = no && can_build_shared=no + +with_gnu_ld=$with_gnu_ld + + + + + + + + + + + + + + + +# +# Do we need to explicitly link libc? +# +case "x$archive_cmds_need_lc" in +x|xyes) + # Assume -lc should be added + archive_cmds_need_lc=yes + + if test "$enable_shared" = yes && test "$GCC" = yes; then + case $archive_cmds in + *'~'*) + # FIXME: we may have to deal with multi-command sequences. + ;; + '$CC '*) + # Test whether the compiler implicitly links with -lc since on some + # systems, -lgcc has to come before -lc. If gcc already passes -lc + # to ld, don't add -lc before -lgcc. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5 +$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; } +if ${lt_cv_archive_cmds_need_lc+:} false; then : + $as_echo_n "(cached) " >&6 +else + $RM conftest* + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } 2>conftest.err; then + soname=conftest + lib=conftest + libobjs=conftest.$ac_objext + deplibs= + wl=$lt_prog_compiler_wl + pic_flag=$lt_prog_compiler_pic + compiler_flags=-v + linker_flags=-v + verstring= + output_objdir=. + libname=conftest + lt_save_allow_undefined_flag=$allow_undefined_flag + allow_undefined_flag= + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5 + (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + then + lt_cv_archive_cmds_need_lc=no + else + lt_cv_archive_cmds_need_lc=yes + fi + allow_undefined_flag=$lt_save_allow_undefined_flag + else + cat conftest.err 1>&5 + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5 +$as_echo "$lt_cv_archive_cmds_need_lc" >&6; } + archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc + ;; + esac + fi + ;; +esac + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5 +$as_echo_n "checking dynamic linker characteristics... " >&6; } + +if test "$GCC" = yes; then + case $host_os in + darwin*) lt_awk_arg="/^libraries:/,/LR/" ;; + *) lt_awk_arg="/^libraries:/" ;; + esac + case $host_os in + mingw* | cegcc*) lt_sed_strip_eq="s,=\([A-Za-z]:\),\1,g" ;; + *) lt_sed_strip_eq="s,=/,/,g" ;; + esac + lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` + case $lt_search_path_spec in + *\;*) + # if the path contains ";" then we assume it to be the separator + # otherwise default to the standard path separator (i.e. ":") - it is + # assumed that no part of a normal pathname contains ";" but that should + # okay in the real world where ";" in dirpaths is itself problematic. + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` + ;; + *) + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` + ;; + esac + # Ok, now we have the path, separated by spaces, we can step through it + # and add multilib dir if necessary. + lt_tmp_lt_search_path_spec= + lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` + for lt_sys_path in $lt_search_path_spec; do + if test -d "$lt_sys_path/$lt_multi_os_dir"; then + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir" + else + test -d "$lt_sys_path" && \ + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path" + fi + done + lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk ' +BEGIN {RS=" "; FS="/|\n";} { + lt_foo=""; + lt_count=0; + for (lt_i = NF; lt_i > 0; lt_i--) { + if ($lt_i != "" && $lt_i != ".") { + if ($lt_i == "..") { + lt_count++; + } else { + if (lt_count == 0) { + lt_foo="/" $lt_i lt_foo; + } else { + lt_count--; + } + } + } + } + if (lt_foo != "") { lt_freq[lt_foo]++; } + if (lt_freq[lt_foo] == 1) { print lt_foo; } +}'` + # AWK program above erroneously prepends '/' to C:/dos/paths + # for these hosts. + case $host_os in + mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\ + $SED 's,/\([A-Za-z]:\),\1,g'` ;; + esac + sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP` +else + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" +fi +library_names_spec= +libname_spec='lib$name' +soname_spec= +shrext_cmds=".so" +postinstall_cmds= +postuninstall_cmds= +finish_cmds= +finish_eval= +shlibpath_var= +shlibpath_overrides_runpath=unknown +version_type=none +dynamic_linker="$host_os ld.so" +sys_lib_dlsearch_path_spec="/lib /usr/lib" +need_lib_prefix=unknown +hardcode_into_libs=no + +# when you set need_version to no, make sure it does not cause -set_version +# flags to be left without arguments +need_version=unknown + +case $host_os in +aix3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a' + shlibpath_var=LIBPATH + + # AIX 3 has no versioning support, so we append a major version to the name. + soname_spec='${libname}${release}${shared_ext}$major' + ;; + +aix[4-9]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + hardcode_into_libs=yes + if test "$host_cpu" = ia64; then + # AIX 5 supports IA64 + library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line `#! .'. This would cause the generated library to + # depend on `.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[01] | aix4.[01].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # AIX (on Power*) has no versioning support, so currently we can not hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + if test "$aix_use_runtimelinking" = yes; then + # If using run time linking (on AIX 4.2 or later) use lib.so + # instead of lib.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + else + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='${libname}${release}.a $libname.a' + soname_spec='${libname}${release}${shared_ext}$major' + fi + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='${libname}${shared_ext}' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[45]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=".dll" + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \${file}`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api" + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl*) + # Native MSVC + libname_spec='$name' + soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + library_names_spec='${libname}.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec="$LIB" + if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \${file}`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC wrapper + library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext' + soname_spec='${libname}${release}${major}$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' + + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib" + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[23].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[01]* | freebsdelf3.[01]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[2-9]* | freebsdelf3.[2-9]* | \ + freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=yes + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + if test "X$HPUX_IA64_MODE" = X32; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + fi + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[3-9]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test "$lt_cv_prog_gnu_ld" = yes; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='${libname}${release}${shared_ext}$major' + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}" + sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + if ${lt_cv_shlibpath_overrides_runpath+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \ + LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\"" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : + lt_cv_shlibpath_overrides_runpath=yes +fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + +fi + + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Append ld.so.conf contents to the search path + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsdelf*-gnu) + version_type=linux + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='NetBSD ld.elf_so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd*) + version_type=sunos + sys_lib_dlsearch_path_spec="/usr/lib" + need_lib_prefix=no + # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs. + case $host_os in + openbsd3.3 | openbsd3.3.*) need_version=yes ;; + *) need_version=no ;; + esac + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + case $host_os in + openbsd2.[89] | openbsd2.[89].*) + shlibpath_overrides_runpath=no + ;; + *) + shlibpath_overrides_runpath=yes + ;; + esac + else + shlibpath_overrides_runpath=yes + fi + ;; + +os2*) + libname_spec='$name' + shrext_cmds=".dll" + need_lib_prefix=no + library_names_spec='$libname${shared_ext} $libname.a' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=LIBPATH + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='${libname}${release}${shared_ext}$major' + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec" + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test "$with_gnu_ld" = yes; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec ;then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}' + soname_spec='$libname${shared_ext}.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=freebsd-elf + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test "$with_gnu_ld" = yes; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5 +$as_echo "$dynamic_linker" >&6; } +test "$dynamic_linker" = no && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test "$GCC" = yes; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then + sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec" +fi +if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then + sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec" +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5 +$as_echo_n "checking how to hardcode library paths into programs... " >&6; } +hardcode_action= +if test -n "$hardcode_libdir_flag_spec" || + test -n "$runpath_var" || + test "X$hardcode_automatic" = "Xyes" ; then + + # We can hardcode non-existent directories. + if test "$hardcode_direct" != no && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test "$_LT_TAGVAR(hardcode_shlibpath_var, )" != no && + test "$hardcode_minus_L" != no; then + # Linking always hardcodes the temporary library directory. + hardcode_action=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + hardcode_action=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + hardcode_action=unsupported +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5 +$as_echo "$hardcode_action" >&6; } + +if test "$hardcode_action" = relink || + test "$inherit_rpath" = yes; then + # Fast installation is not supported + enable_fast_install=no +elif test "$shlibpath_overrides_runpath" = yes || + test "$enable_shared" = no; then + # Fast installation is not necessary + enable_fast_install=needless +fi + + + + + + + if test "x$enable_dlopen" != xyes; then + enable_dlopen=unknown + enable_dlopen_self=unknown + enable_dlopen_self_static=unknown +else + lt_cv_dlopen=no + lt_cv_dlopen_libs= + + case $host_os in + beos*) + lt_cv_dlopen="load_add_on" + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ;; + + mingw* | pw32* | cegcc*) + lt_cv_dlopen="LoadLibrary" + lt_cv_dlopen_libs= + ;; + + cygwin*) + lt_cv_dlopen="dlopen" + lt_cv_dlopen_libs= + ;; + + darwin*) + # if libdl is installed we need to link against it + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl" +else + + lt_cv_dlopen="dyld" + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + +fi + + ;; + + *) + ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load" +if test "x$ac_cv_func_shl_load" = xyes; then : + lt_cv_dlopen="shl_load" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5 +$as_echo_n "checking for shl_load in -ldld... " >&6; } +if ${ac_cv_lib_dld_shl_load+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char shl_load (); +int +main () +{ +return shl_load (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dld_shl_load=yes +else + ac_cv_lib_dld_shl_load=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5 +$as_echo "$ac_cv_lib_dld_shl_load" >&6; } +if test "x$ac_cv_lib_dld_shl_load" = xyes; then : + lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld" +else + ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen" +if test "x$ac_cv_func_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5 +$as_echo_n "checking for dlopen in -lsvld... " >&6; } +if ${ac_cv_lib_svld_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lsvld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_svld_dlopen=yes +else + ac_cv_lib_svld_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5 +$as_echo "$ac_cv_lib_svld_dlopen" >&6; } +if test "x$ac_cv_lib_svld_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5 +$as_echo_n "checking for dld_link in -ldld... " >&6; } +if ${ac_cv_lib_dld_dld_link+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dld_link (); +int +main () +{ +return dld_link (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dld_dld_link=yes +else + ac_cv_lib_dld_dld_link=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5 +$as_echo "$ac_cv_lib_dld_dld_link" >&6; } +if test "x$ac_cv_lib_dld_dld_link" = xyes; then : + lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld" +fi + + +fi + + +fi + + +fi + + +fi + + +fi + + ;; + esac + + if test "x$lt_cv_dlopen" != xno; then + enable_dlopen=yes + else + enable_dlopen=no + fi + + case $lt_cv_dlopen in + dlopen) + save_CPPFLAGS="$CPPFLAGS" + test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" + + save_LDFLAGS="$LDFLAGS" + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" + + save_LIBS="$LIBS" + LIBS="$lt_cv_dlopen_libs $LIBS" + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5 +$as_echo_n "checking whether a program can dlopen itself... " >&6; } +if ${lt_cv_dlopen_self+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + lt_cv_dlopen_self=cross +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisbility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +} +_LT_EOF + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then + (./conftest; exit; ) >&5 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;; + x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;; + x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;; + esac + else : + # compilation failed + lt_cv_dlopen_self=no + fi +fi +rm -fr conftest* + + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5 +$as_echo "$lt_cv_dlopen_self" >&6; } + + if test "x$lt_cv_dlopen_self" = xyes; then + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5 +$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; } +if ${lt_cv_dlopen_self_static+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + lt_cv_dlopen_self_static=cross +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisbility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +} +_LT_EOF + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then + (./conftest; exit; ) >&5 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;; + x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;; + x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;; + esac + else : + # compilation failed + lt_cv_dlopen_self_static=no + fi +fi +rm -fr conftest* + + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5 +$as_echo "$lt_cv_dlopen_self_static" >&6; } + fi + + CPPFLAGS="$save_CPPFLAGS" + LDFLAGS="$save_LDFLAGS" + LIBS="$save_LIBS" + ;; + esac + + case $lt_cv_dlopen_self in + yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; + *) enable_dlopen_self=unknown ;; + esac + + case $lt_cv_dlopen_self_static in + yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; + *) enable_dlopen_self_static=unknown ;; + esac +fi + + + + + + + + + + + + + + + + + +striplib= +old_striplib= +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5 +$as_echo_n "checking whether stripping libraries is possible... " >&6; } +if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then + test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" + test -z "$striplib" && striplib="$STRIP --strip-unneeded" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else +# FIXME - insert some real tests, host_os isn't really good enough + case $host_os in + darwin*) + if test -n "$STRIP" ; then + striplib="$STRIP -x" + old_striplib="$STRIP -S" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + fi + ;; + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + ;; + esac +fi + + + + + + + + + + + + + # Report which library types will actually be built + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5 +$as_echo_n "checking if libtool supports shared libraries... " >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5 +$as_echo "$can_build_shared" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5 +$as_echo_n "checking whether to build shared libraries... " >&6; } + test "$can_build_shared" = "no" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test "$enable_shared" = yes && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + + aix[4-9]*) + if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then + test "$enable_shared" = yes && enable_static=no + fi + ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5 +$as_echo "$enable_shared" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5 +$as_echo_n "checking whether to build static libraries... " >&6; } + # Make sure either enable_shared or enable_static is yes. + test "$enable_shared" = yes || enable_static=yes + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5 +$as_echo "$enable_static" >&6; } + + + + +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +CC="$lt_save_CC" + + + + + + + + + + + + + + + + ac_config_commands="$ac_config_commands libtool" + + + + +# Only expand once: + + + + +enable_pcre=no + +# Check whether --with-pcre was given. +if test "${with_pcre+set}" = set; then : + withval=$with_pcre; + if test "x$withval" != "xyes" && test "x$withval" != "x"; then + pcre_base_dir="$withval" + if test "$withval" != "no"; then + enable_pcre=yes + case "$withval" in + *":"*) + pcre_include="`echo $withval |sed -e 's/:.*$//'`" + pcre_ldflags="`echo $withval |sed -e 's/^.*://'`" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for pcre includes in $pcre_include libs in $pcre_ldflags " >&5 +$as_echo_n "checking checking for pcre includes in $pcre_include libs in $pcre_ldflags ... " >&6; } + ;; + *) + pcre_include="$withval/include" + pcre_ldflags="$withval/lib" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for pcre includes in $withval" >&5 +$as_echo_n "checking checking for pcre includes in $withval... " >&6; } + ;; + esac + fi + fi + +else + + # Extract the first word of "pcre-config", so it can be a program name with args. +set dummy pcre-config; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_PCRE_CONFIG+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$PCRE_CONFIG"; then + ac_cv_prog_PCRE_CONFIG="$PCRE_CONFIG" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_PCRE_CONFIG="pcre-config" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +PCRE_CONFIG=$ac_cv_prog_PCRE_CONFIG +if test -n "$PCRE_CONFIG"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PCRE_CONFIG" >&5 +$as_echo "$PCRE_CONFIG" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "x$PCRE_CONFIG" != "x"; then + enable_pcre=yes + pcre_base_dir="`$PCRE_CONFIG --prefix`" + pcre_include="`$PCRE_CONFIG --cflags | sed -es/-I//`" + pcre_ldflags="`$PCRE_CONFIG --libs | sed -es/-lpcre// -es/-L//`" + fi + +fi + + +if test "x$pcre_base_dir" = "x"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pcre location" >&5 +$as_echo_n "checking for pcre location... " >&6; } + if ${ats_cv_pcre_dir+:} false; then : + $as_echo_n "(cached) " >&6 +else + + for dir in /usr/local /usr ; do + if test -d $dir && ( test -f $dir/include/pcre.h || test -f $dir/include/pcre/pcre.h ); then + ats_cv_pcre_dir=$dir + break + fi + done + +fi + + pcre_base_dir=$ats_cv_pcre_dir + if test "x$pcre_base_dir" = "x"; then + enable_pcre=no + { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5 +$as_echo "not found" >&6; } + else + enable_pcre=yes + pcre_include="$pcre_base_dir/include" + pcre_ldflags="$pcre_base_dir/lib" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pcre_base_dir" >&5 +$as_echo "$pcre_base_dir" >&6; } + fi +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pcre headers in $pcre_include" >&5 +$as_echo_n "checking for pcre headers in $pcre_include... " >&6; } + if test -d $pcre_include && test -d $pcre_ldflags && ( test -f $pcre_include/pcre.h || test -f $pcre_include/pcre/pcre.h ); then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } + else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5 +$as_echo "not found" >&6; } + fi +fi + +pcreh=0 +pcre_pcreh=0 +if test "$enable_pcre" != "no"; then + saved_ldflags=$LDFLAGS + saved_cppflags=$CFLAGS + pcre_have_headers=0 + pcre_have_libs=0 + if test "$pcre_base_dir" != "/usr"; then + + if test "x$CFLAGS" = "x"; then + test "x$verbose" = "xyes" && echo " setting CFLAGS to \"-I${pcre_include}\"" + CFLAGS="-I${pcre_include}" + else + ats_addto_bugger="-I${pcre_include}" + for i in $ats_addto_bugger; do + ats_addto_duplicate="0" + for j in $CFLAGS; do + if test "x$i" = "x$j"; then + ats_addto_duplicate="1" + break + fi + done + if test $ats_addto_duplicate = "0"; then + test "x$verbose" = "xyes" && echo " adding \"$i\" to CFLAGS" + CFLAGS="$CFLAGS $i" + fi + done + fi + + + if test "x$CFLAGS" = "x"; then + test "x$verbose" = "xyes" && echo " setting CFLAGS to \"-DPCRE_STATIC\"" + CFLAGS="-DPCRE_STATIC" + else + ats_addto_bugger="-DPCRE_STATIC" + for i in $ats_addto_bugger; do + ats_addto_duplicate="0" + for j in $CFLAGS; do + if test "x$i" = "x$j"; then + ats_addto_duplicate="1" + break + fi + done + if test $ats_addto_duplicate = "0"; then + test "x$verbose" = "xyes" && echo " adding \"$i\" to CFLAGS" + CFLAGS="$CFLAGS $i" + fi + done + fi + + + if test "x$LDFLAGS" = "x"; then + test "x$verbose" = "xyes" && echo " setting LDFLAGS to \"-L${pcre_ldflags}\"" + LDFLAGS="-L${pcre_ldflags}" + else + ats_addto_bugger="-L${pcre_ldflags}" + for i in $ats_addto_bugger; do + ats_addto_duplicate="0" + for j in $LDFLAGS; do + if test "x$i" = "x$j"; then + ats_addto_duplicate="1" + break + fi + done + if test $ats_addto_duplicate = "0"; then + test "x$verbose" = "xyes" && echo " adding \"$i\" to LDFLAGS" + LDFLAGS="$LDFLAGS $i" + fi + done + fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: adding ${pcre_ldflags} to RPATH" >&5 +$as_echo "$as_me: adding ${pcre_ldflags} to RPATH" >&6;} + + if test "x$LIBTOOL_LINK_FLAGS" = "x"; then + test "x$verbose" = "xyes" && echo " setting LIBTOOL_LINK_FLAGS to \"-R${pcre_ldflags}\"" + LIBTOOL_LINK_FLAGS="-R${pcre_ldflags}" + else + ats_addto_bugger="-R${pcre_ldflags}" + for i in $ats_addto_bugger; do + ats_addto_duplicate="0" + for j in $LIBTOOL_LINK_FLAGS; do + if test "x$i" = "x$j"; then + ats_addto_duplicate="1" + break + fi + done + if test $ats_addto_duplicate = "0"; then + test "x$verbose" = "xyes" && echo " adding \"$i\" to LIBTOOL_LINK_FLAGS" + LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i" + fi + done + fi + + + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pcre_exec" >&5 +$as_echo_n "checking for library containing pcre_exec... " >&6; } +if ${ac_cv_search_pcre_exec+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_func_search_save_LIBS=$LIBS +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char pcre_exec (); +int +main () +{ +return pcre_exec (); + ; + return 0; +} +_ACEOF +for ac_lib in '' pcre; do + if test -z "$ac_lib"; then + ac_res="none required" + else + ac_res=-l$ac_lib + LIBS="-l$ac_lib $ac_func_search_save_LIBS" + fi + if ac_fn_c_try_link "$LINENO"; then : + ac_cv_search_pcre_exec=$ac_res +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext + if ${ac_cv_search_pcre_exec+:} false; then : + break +fi +done +if ${ac_cv_search_pcre_exec+:} false; then : + +else + ac_cv_search_pcre_exec=no +fi +rm conftest.$ac_ext +LIBS=$ac_func_search_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pcre_exec" >&5 +$as_echo "$ac_cv_search_pcre_exec" >&6; } +ac_res=$ac_cv_search_pcre_exec +if test "$ac_res" != no; then : + test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" + pcre_have_libs=1 +fi + + if test "$pcre_have_libs" != "0"; then + for ac_header in pcre.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "pcre.h" "ac_cv_header_pcre_h" "$ac_includes_default" +if test "x$ac_cv_header_pcre_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_PCRE_H 1 +_ACEOF + pcre_have_headers=1 +fi + +done + + for ac_header in pcre/pcre.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "pcre/pcre.h" "ac_cv_header_pcre_pcre_h" "$ac_includes_default" +if test "x$ac_cv_header_pcre_pcre_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_PCRE_PCRE_H 1 +_ACEOF + pcre_have_headers=1 +fi + +done + + fi + if test "$pcre_have_headers" != "0"; then + +$as_echo "#define HAVE_LIBPCRE 1" >>confdefs.h + + LIBPCRE=-lpcre + + else + enable_pcre=no + CFLAGS=$saved_cppflags + LDFLAGS=$saved_ldflags + fi +fi + + + +if test "x${enable_pcre}" != "xyes"; then + as_fn_error $? "Cannot find pcre library. Configure --with-pcre=DIR" "$LINENO" 5 +fi + +# Check whether --enable-system-shared-lib was given. +if test "${enable_system_shared_lib+set}" = set; then : + enableval=$enable_system_shared_lib; + case "${enableval}" in + yes) enable_system_shared_lib=true ;; + no) enable_system_shared_lib=false ;; + *) as_fn_error $? "bad value ${enableval} for --enable-system-shared-lib" "$LINENO" 5 ;; + esac +else + enable_system_shared_lib=false +fi + + if test x$enable_system_shared_lib = xtrue; then + USE_SYSTEM_SHARED_LIB_TRUE= + USE_SYSTEM_SHARED_LIB_FALSE='#' +else + USE_SYSTEM_SHARED_LIB_TRUE='#' + USE_SYSTEM_SHARED_LIB_FALSE= +fi + + + +# Check whether --with-crypto-library was given. +if test "${with_crypto_library+set}" = set; then : + withval=$with_crypto_library; + case "${withval}" in + openssl|polarssl|mbedtls) ;; + *) as_fn_error $? "bad value ${withval} for --with-crypto-library" "$LINENO" 5 ;; + esac + +else + with_crypto_library="openssl" + +fi + + +# Check whether --enable-documentation was given. +if test "${enable_documentation+set}" = set; then : + enableval=$enable_documentation; disable_documentation=true +else + disable_documentation=false +fi + + if test x$disable_documentation = xfalse; then + ENABLE_DOCUMENTATION_TRUE= + ENABLE_DOCUMENTATION_FALSE='#' +else + ENABLE_DOCUMENTATION_TRUE='#' + ENABLE_DOCUMENTATION_FALSE= +fi + + +if test -z "$ENABLE_DOCUMENTATION_TRUE"; then : + + # Extract the first word of "asciidoc", so it can be a program name with args. +set dummy asciidoc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_path_ASCIIDOC+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $ASCIIDOC in + [\\/]* | ?:[\\/]*) + ac_cv_path_ASCIIDOC="$ASCIIDOC" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_path_ASCIIDOC="$as_dir/$ac_word$ac_exec_ext" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + ;; +esac +fi +ASCIIDOC=$ac_cv_path_ASCIIDOC +if test -n "$ASCIIDOC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ASCIIDOC" >&5 +$as_echo "$ASCIIDOC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test x"${ASCIIDOC}" != x || as_fn_error $? "Cannot find \`asciidoc\` in PATH." "$LINENO" 5 + # Extract the first word of "xmlto", so it can be a program name with args. +set dummy xmlto; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_path_XMLTO+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $XMLTO in + [\\/]* | ?:[\\/]*) + ac_cv_path_XMLTO="$XMLTO" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_path_XMLTO="$as_dir/$ac_word$ac_exec_ext" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + ;; +esac +fi +XMLTO=$ac_cv_path_XMLTO +if test -n "$XMLTO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XMLTO" >&5 +$as_echo "$XMLTO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test x"$XMLTO" != x || as_fn_error $? "Cannot find \`xmlto\` in PATH." "$LINENO" 5 + # Extract the first word of "gzip", so it can be a program name with args. +set dummy gzip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_path_GZIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $GZIP in + [\\/]* | ?:[\\/]*) + ac_cv_path_GZIP="$GZIP" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_path_GZIP="$as_dir/$ac_word$ac_exec_ext" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_path_GZIP" && ac_cv_path_GZIP="gzip" + ;; +esac +fi +GZIP=$ac_cv_path_GZIP +if test -n "$GZIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GZIP" >&5 +$as_echo "$GZIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + # Extract the first word of "rm", so it can be a program name with args. +set dummy rm; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_path_RM+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $RM in + [\\/]* | ?:[\\/]*) + ac_cv_path_RM="$RM" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_path_RM="$as_dir/$ac_word$ac_exec_ext" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_path_RM" && ac_cv_path_RM="rm" + ;; +esac +fi +RM=$ac_cv_path_RM +if test -n "$RM"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RM" >&5 +$as_echo "$RM" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + # Extract the first word of "mv", so it can be a program name with args. +set dummy mv; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_path_MV+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MV in + [\\/]* | ?:[\\/]*) + ac_cv_path_MV="$MV" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_path_MV="$as_dir/$ac_word$ac_exec_ext" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_path_MV" && ac_cv_path_MV="mv" + ;; +esac +fi +MV=$ac_cv_path_MV +if test -n "$MV"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MV" >&5 +$as_echo "$MV" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5 +$as_echo_n "checking for a sed that does not truncate output... " >&6; } +if ${ac_cv_path_SED+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ + for ac_i in 1 2 3 4 5 6 7; do + ac_script="$ac_script$as_nl$ac_script" + done + echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed + { ac_script=; unset ac_script;} + if test -z "$SED"; then + ac_path_SED_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_SED="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_SED" || continue +# Check for GNU ac_path_SED and select it if it is found. + # Check for GNU $ac_path_SED +case `"$ac_path_SED" --version 2>&1` in +*GNU*) + ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo '' >> "conftest.nl" + "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_SED_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_SED="$ac_path_SED" + ac_path_SED_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_SED_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_SED"; then + as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5 + fi +else + ac_cv_path_SED=$SED +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5 +$as_echo "$ac_cv_path_SED" >&6; } + SED="$ac_cv_path_SED" + rm -f conftest.sed + + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5 +$as_echo_n "checking whether we are using the GNU C compiler... " >&6; } +if ${ac_cv_c_compiler_gnu+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_compiler_gnu=yes +else + ac_compiler_gnu=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5 +$as_echo "$ac_cv_c_compiler_gnu" >&6; } +if test $ac_compiler_gnu = yes; then + GCC=yes +else + GCC= +fi +ac_test_CFLAGS=${CFLAGS+set} +ac_save_CFLAGS=$CFLAGS +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5 +$as_echo_n "checking whether $CC accepts -g... " >&6; } +if ${ac_cv_prog_cc_g+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_save_c_werror_flag=$ac_c_werror_flag + ac_c_werror_flag=yes + ac_cv_prog_cc_g=no + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +else + CFLAGS="" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + +else + ac_c_werror_flag=$ac_save_c_werror_flag + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_c_werror_flag=$ac_save_c_werror_flag +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5 +$as_echo "$ac_cv_prog_cc_g" >&6; } +if test "$ac_test_CFLAGS" = set; then + CFLAGS=$ac_save_CFLAGS +elif test $ac_cv_prog_cc_g = yes; then + if test "$GCC" = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-g" + fi +else + if test "$GCC" = yes; then + CFLAGS="-O2" + else + CFLAGS= + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5 +$as_echo_n "checking for $CC option to accept ISO C89... " >&6; } +if ${ac_cv_prog_cc_c89+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +struct stat; +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5 +$as_echo_n "checking whether $CC understands -c and -o together... " >&6; } +if ${am_cv_prog_cc_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF + # Make sure it works both with $CC and with simple cc. + # Following AC_PROG_CC_C_O, we do the test twice because some + # compilers refuse to overwrite an existing .o file with -o, + # though they will create one. + am_cv_prog_cc_c_o=yes + for am_i in 1 2; do + if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5 + ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } \ + && test -f conftest2.$ac_objext; then + : OK + else + am_cv_prog_cc_c_o=no + break + fi + done + rm -f core conftest* + unset am_i +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5 +$as_echo "$am_cv_prog_cc_c_o" >&6; } +if test "$am_cv_prog_cc_c_o" != yes; then + # Losing compiler, so override with the script. + # FIXME: It is wrong to rewrite CC. + # But if we don't then we get into trouble of one sort or another. + # A longer-term fix would be to have automake use am__CC in this case, + # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)" + CC="$am_aux_dir/compile $CC" +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5 +$as_echo_n "checking whether ln -s works... " >&6; } +LN_S=$as_ln_s +if test "$LN_S" = "ln -s"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5 +$as_echo "no, using $LN_S" >&6; } +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5 +$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; } +set x ${MAKE-make} +ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'` +if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat >conftest.make <<\_ACEOF +SHELL = /bin/sh +all: + @echo '@@@%%%=$(MAKE)=@@@%%%' +_ACEOF +# GNU make sometimes prints "make[1]: Entering ...", which would confuse us. +case `${MAKE-make} -f conftest.make 2>/dev/null` in + *@@@%%%=?*=@@@%%%*) + eval ac_cv_prog_make_${ac_make}_set=yes;; + *) + eval ac_cv_prog_make_${ac_make}_set=no;; +esac +rm -f conftest.make +fi +if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + SET_MAKE= +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + SET_MAKE="MAKE=${MAKE-make}" +fi + + + +if test -z "$USE_SYSTEM_SHARED_LIB_TRUE"; then : + else + +for ac_header in sys/inotify.h sys/epoll.h sys/event.h port.h poll.h sys/select.h sys/eventfd.h sys/signalfd.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +for ac_func in inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + +for ac_func in clock_gettime +do : + ac_fn_c_check_func "$LINENO" "clock_gettime" "ac_cv_func_clock_gettime" +if test "x$ac_cv_func_clock_gettime" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_CLOCK_GETTIME 1 +_ACEOF + +else + + if test $(uname) = Linux; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime syscall" >&5 +$as_echo_n "checking for clock_gettime syscall... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + #include + #include +int +main () +{ +struct timespec ts; int status = syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts) + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_have_clock_syscall=1 + +$as_echo "#define HAVE_CLOCK_SYSCALL 1" >>confdefs.h + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + fi + if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5 +$as_echo_n "checking for clock_gettime in -lrt... " >&6; } +if ${ac_cv_lib_rt_clock_gettime+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lrt $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char clock_gettime (); +int +main () +{ +return clock_gettime (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_rt_clock_gettime=yes +else + ac_cv_lib_rt_clock_gettime=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5 +$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; } +if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_LIBRT 1 +_ACEOF + + LIBS="-lrt $LIBS" + +fi + + unset ac_cv_func_clock_gettime + for ac_func in clock_gettime +do : + ac_fn_c_check_func "$LINENO" "clock_gettime" "ac_cv_func_clock_gettime" +if test "x$ac_cv_func_clock_gettime" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_CLOCK_GETTIME 1 +_ACEOF + +fi +done + + fi + +fi +done + + +for ac_func in nanosleep +do : + ac_fn_c_check_func "$LINENO" "nanosleep" "ac_cv_func_nanosleep" +if test "x$ac_cv_func_nanosleep" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_NANOSLEEP 1 +_ACEOF + +else + + if test -z "$LIBEV_M4_AVOID_LIBRT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nanosleep in -lrt" >&5 +$as_echo_n "checking for nanosleep in -lrt... " >&6; } +if ${ac_cv_lib_rt_nanosleep+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lrt $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char nanosleep (); +int +main () +{ +return nanosleep (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_rt_nanosleep=yes +else + ac_cv_lib_rt_nanosleep=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_nanosleep" >&5 +$as_echo "$ac_cv_lib_rt_nanosleep" >&6; } +if test "x$ac_cv_lib_rt_nanosleep" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_LIBRT 1 +_ACEOF + + LIBS="-lrt $LIBS" + +fi + + unset ac_cv_func_nanosleep + for ac_func in nanosleep +do : + ac_fn_c_check_func "$LINENO" "nanosleep" "ac_cv_func_nanosleep" +if test "x$ac_cv_func_nanosleep" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_NANOSLEEP 1 +_ACEOF + +fi +done + + fi + +fi +done + + +if test -z "$LIBEV_M4_AVOID_LIBM"; then + LIBM=m +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing floor" >&5 +$as_echo_n "checking for library containing floor... " >&6; } +if ${ac_cv_search_floor+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_func_search_save_LIBS=$LIBS +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char floor (); +int +main () +{ +return floor (); + ; + return 0; +} +_ACEOF +for ac_lib in '' $LIBM; do + if test -z "$ac_lib"; then + ac_res="none required" + else + ac_res=-l$ac_lib + LIBS="-l$ac_lib $ac_func_search_save_LIBS" + fi + if ac_fn_c_try_link "$LINENO"; then : + ac_cv_search_floor=$ac_res +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext + if ${ac_cv_search_floor+:} false; then : + break +fi +done +if ${ac_cv_search_floor+:} false; then : + +else + ac_cv_search_floor=no +fi +rm conftest.$ac_ext +LIBS=$ac_func_search_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_floor" >&5 +$as_echo "$ac_cv_search_floor" >&6; } +ac_res=$ac_cv_search_floor +if test "$ac_res" != no; then : + test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" + +$as_echo "#define HAVE_FLOOR 1" >>confdefs.h + +fi + + + +fi + +case $host in + *-mingw*) + LIBS="$LIBS -ladvapi32 -lgdi32 -lws2_32 -lcrypt32" + ;; + *) + ;; +esac + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for thread local storage (TLS) class" >&5 +$as_echo_n "checking for thread local storage (TLS) class... " >&6; } + if ${ac_cv_tls+:} false; then : + $as_echo_n "(cached) " >&6 +else + for ax_tls_keyword in __thread '__declspec(thread)' none; do + case $ax_tls_keyword in #( + none) : + ac_cv_tls=none ; break ;; #( + *) : + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + static void + foo(void) { + static $ax_tls_keyword int bar; + exit(1); + } +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_tls=$ax_tls_keyword ; break +else + ac_cv_tls=none + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext ;; +esac + done + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_tls" >&5 +$as_echo "$ac_cv_tls" >&6; } + + if test "$ac_cv_tls" != "none"; then : + +cat >>confdefs.h <<_ACEOF +#define TLS $ac_cv_tls +_ACEOF + + : +else + : +fi + + +case "${with_crypto_library}" in + openssl) + + # Check whether --enable-zlib was given. +if test "${enable_zlib+set}" = set; then : + enableval=$enable_zlib; +fi + + if test "x$enable_zlib" != "xno"; then : + + +$as_echo "#define HAVE_ZLIB 1" >>confdefs.h + + +# Check whether --with-zlib was given. +if test "${with_zlib+set}" = set; then : + withval=$with_zlib; zlib="$withval" + CPPFLAGS="$CPPFLAGS -I$withval/include" + LDFLAGS="$LDFLAGS -L$withval/lib" + +fi + + + +# Check whether --with-zlib-include was given. +if test "${with_zlib_include+set}" = set; then : + withval=$with_zlib_include; zlib_include="$withval" + CPPFLAGS="$CPPFLAGS -I$withval" + +fi + + + +# Check whether --with-zlib-lib was given. +if test "${with_zlib_lib+set}" = set; then : + withval=$with_zlib_lib; zlib_lib="$withval" + LDFLAGS="$LDFLAGS -L$withval" + +fi + + + for ac_header in zlib.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "zlib.h" "ac_cv_header_zlib_h" "$ac_includes_default" +if test "x$ac_cv_header_zlib_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_ZLIB_H 1 +_ACEOF + +else + as_fn_error $? "\"zlib header files not found.\"" "$LINENO" 5; break + +fi + +done + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for compress2 in -lz" >&5 +$as_echo_n "checking for compress2 in -lz... " >&6; } +if ${ac_cv_lib_z_compress2+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lz $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char compress2 (); +int +main () +{ +return compress2 (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_z_compress2=yes +else + ac_cv_lib_z_compress2=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_compress2" >&5 +$as_echo "$ac_cv_lib_z_compress2" >&6; } +if test "x$ac_cv_lib_z_compress2" = xyes; then : + LIBS="$LIBS -lz" +else + as_fn_error $? "\"zlib libraries not found.\"" "$LINENO" 5 + +fi + + +fi + + + case $host_os in + *mingw*) + ;; + *) + ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen" +if test "x$ac_cv_func_dlopen" = xyes; then : + +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + LIBS="$LIBS -ldl" +else + as_fn_error $? "OpenSSL depends on libdl." "$LINENO" 5; break + +fi + + +fi + + ;; + esac + + +# Check whether --with-openssl was given. +if test "${with_openssl+set}" = set; then : + withval=$with_openssl; openssl="$withval" + CFLAGS="$CFLAGS -I$withval/include" + LDFLAGS="$LDFLAGS -L$withval/lib" + +fi + + + +# Check whether --with-openssl-include was given. +if test "${with_openssl_include+set}" = set; then : + withval=$with_openssl_include; openssl_include="$withval" + CFLAGS="$CFLAGS -I$withval" + +fi + + + +# Check whether --with-openssl-lib was given. +if test "${with_openssl_lib+set}" = set; then : + withval=$with_openssl_lib; openssl_lib="$withval" + LDFLAGS="$LDFLAGS -L$withval" + +fi + + + for ac_header in openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h openssl/engine.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +else + as_fn_error $? "OpenSSL header files not found." "$LINENO" 5; break + +fi + +done + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for EVP_EncryptInit_ex in -lcrypto" >&5 +$as_echo_n "checking for EVP_EncryptInit_ex in -lcrypto... " >&6; } +if ${ac_cv_lib_crypto_EVP_EncryptInit_ex+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lcrypto $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char EVP_EncryptInit_ex (); +int +main () +{ +return EVP_EncryptInit_ex (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_crypto_EVP_EncryptInit_ex=yes +else + ac_cv_lib_crypto_EVP_EncryptInit_ex=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_crypto_EVP_EncryptInit_ex" >&5 +$as_echo "$ac_cv_lib_crypto_EVP_EncryptInit_ex" >&6; } +if test "x$ac_cv_lib_crypto_EVP_EncryptInit_ex" = xyes; then : + LIBS="-lcrypto $LIBS" +else + as_fn_error $? "OpenSSL libraries not found." "$LINENO" 5 + +fi + + + for ac_func in RAND_pseudo_bytes EVP_EncryptInit_ex +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +else + as_fn_error $? "Missing OpenSSL functionality, make sure you have installed the latest version." "$LINENO" 5; break +fi +done + + + ac_fn_c_check_decl "$LINENO" "OpenSSL_add_all_algorithms" "ac_cv_have_decl_OpenSSL_add_all_algorithms" "#include + +" +if test "x$ac_cv_have_decl_OpenSSL_add_all_algorithms" = xyes; then : + +else + as_fn_error $? "Missing OpenSSL functionality, make sure you have installed the latest version." "$LINENO" 5; break +fi + + + +$as_echo "#define USE_CRYPTO_OPENSSL 1" >>confdefs.h + + ;; + polarssl) + + + +# Check whether --with-polarssl was given. +if test "${with_polarssl+set}" = set; then : + withval=$with_polarssl; polarssl="$withval" + CFLAGS="$CFLAGS -I$withval/include" + LDFLAGS="$LDFLAGS -L$withval/lib" + +fi + + + +# Check whether --with-polarssl-include was given. +if test "${with_polarssl_include+set}" = set; then : + withval=$with_polarssl_include; polarssl_include="$withval" + CFLAGS="$CFLAGS -I$withval" + +fi + + + +# Check whether --with-polarssl-lib was given. +if test "${with_polarssl_lib+set}" = set; then : + withval=$with_polarssl_lib; polarssl_lib="$withval" + LDFLAGS="$LDFLAGS -L$withval" + +fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cipher_init_ctx in -lpolarssl" >&5 +$as_echo_n "checking for cipher_init_ctx in -lpolarssl... " >&6; } +if ${ac_cv_lib_polarssl_cipher_init_ctx+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lpolarssl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char cipher_init_ctx (); +int +main () +{ +return cipher_init_ctx (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_polarssl_cipher_init_ctx=yes +else + ac_cv_lib_polarssl_cipher_init_ctx=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_polarssl_cipher_init_ctx" >&5 +$as_echo "$ac_cv_lib_polarssl_cipher_init_ctx" >&6; } +if test "x$ac_cv_lib_polarssl_cipher_init_ctx" = xyes; then : + LIBS="-lpolarssl $LIBS" +else + as_fn_error $? "PolarSSL libraries not found." "$LINENO" 5 + +fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking polarssl version" >&5 +$as_echo_n "checking polarssl version... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include + +int +main () +{ + +#if POLARSSL_VERSION_NUMBER < 0x01020500 +#error invalid version +#endif + + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +else + as_fn_error $? "PolarSSL 1.2.5 or newer required" "$LINENO" 5 + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + + +$as_echo "#define USE_CRYPTO_POLARSSL 1" >>confdefs.h + + ;; + mbedtls) + + + +# Check whether --with-mbedtls was given. +if test "${with_mbedtls+set}" = set; then : + withval=$with_mbedtls; mbedtls="$withval" + CFLAGS="$CFLAGS -I$withval/include" + LDFLAGS="$LDFLAGS -L$withval/lib" + +fi + + + +# Check whether --with-mbedtls-include was given. +if test "${with_mbedtls_include+set}" = set; then : + withval=$with_mbedtls_include; mbedtls_include="$withval" + CFLAGS="$CFLAGS -I$withval" + +fi + + + +# Check whether --with-mbedtls-lib was given. +if test "${with_mbedtls_lib+set}" = set; then : + withval=$with_mbedtls_lib; mbedtls_lib="$withval" + LDFLAGS="$LDFLAGS -L$withval" + +fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mbedtls_cipher_setup in -lmbedcrypto" >&5 +$as_echo_n "checking for mbedtls_cipher_setup in -lmbedcrypto... " >&6; } +if ${ac_cv_lib_mbedcrypto_mbedtls_cipher_setup+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lmbedcrypto $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char mbedtls_cipher_setup (); +int +main () +{ +return mbedtls_cipher_setup (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_mbedcrypto_mbedtls_cipher_setup=yes +else + ac_cv_lib_mbedcrypto_mbedtls_cipher_setup=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mbedcrypto_mbedtls_cipher_setup" >&5 +$as_echo "$ac_cv_lib_mbedcrypto_mbedtls_cipher_setup" >&6; } +if test "x$ac_cv_lib_mbedcrypto_mbedtls_cipher_setup" = xyes; then : + LIBS="-lmbedcrypto $LIBS" +else + as_fn_error $? "mbed TLS libraries not found." "$LINENO" 5 + +fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether mbedtls supports Cipher Feedback mode or not" >&5 +$as_echo_n "checking whether mbedtls supports Cipher Feedback mode or not... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include + +int +main () +{ + +#ifndef MBEDTLS_CIPHER_MODE_CFB +#error Cipher Feedback mode a.k.a CFB not supported by your mbed TLS. +#endif + + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +else + as_fn_error $? "MBEDTLS_CIPHER_MODE_CFB required" "$LINENO" 5 + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether mbedtls supports the ARC4 stream cipher or not" >&5 +$as_echo_n "checking whether mbedtls supports the ARC4 stream cipher or not... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include + +int +main () +{ + +#ifndef MBEDTLS_ARC4_C +#error the ARC4 stream cipher not supported by your mbed TLS. +#endif + + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +else + as_fn_error $? "MBEDTLS_ARC4_C required" "$LINENO" 5 + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether mbedtls supports the Blowfish block cipher or not" >&5 +$as_echo_n "checking whether mbedtls supports the Blowfish block cipher or not... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include + +int +main () +{ + +#ifndef MBEDTLS_BLOWFISH_C +#error the Blowfish block cipher not supported by your mbed TLS. +#endif + + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +else + as_fn_error $? "MBEDTLS_BLOWFISH_C required" "$LINENO" 5 + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether mbedtls supports the Camellia block cipher or not" >&5 +$as_echo_n "checking whether mbedtls supports the Camellia block cipher or not... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include + +int +main () +{ + +#ifndef MBEDTLS_CAMELLIA_C +#error the Camellia block cipher not supported by your mbed TLS. +#endif + + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +else + as_fn_error $? "MBEDTLS_CAMELLIA_C required" "$LINENO" 5 + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + + +$as_echo "#define USE_CRYPTO_MBEDTLS 1" >>confdefs.h + + ;; +esac + +# Check whether --enable-applecc was given. +if test "${enable_applecc+set}" = set; then : + enableval=$enable_applecc; + for ac_header in CommonCrypto/CommonCrypto.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "CommonCrypto/CommonCrypto.h" "ac_cv_header_CommonCrypto_CommonCrypto_h" "$ac_includes_default" +if test "x$ac_cv_header_CommonCrypto_CommonCrypto_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_COMMONCRYPTO_COMMONCRYPTO_H 1 +_ACEOF + +else + as_fn_error $? "CommonCrypto header files not found." "$LINENO" 5; break + +fi + +done + + for ac_func in CCCryptorCreateWithMode +do : + ac_fn_c_check_func "$LINENO" "CCCryptorCreateWithMode" "ac_cv_func_CCCryptorCreateWithMode" +if test "x$ac_cv_func_CCCryptorCreateWithMode" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_CCCRYPTORCREATEWITHMODE 1 +_ACEOF + +else + as_fn_error $? "CommonCrypto API needs OS X (>= 10.7) and iOS (>= 5.0)." "$LINENO" 5; break + +fi +done + + +$as_echo "#define USE_CRYPTO_APPLECC 1" >>confdefs.h + + + +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C/C++ restrict keyword" >&5 +$as_echo_n "checking for C/C++ restrict keyword... " >&6; } +if ${ac_cv_c_restrict+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_c_restrict=no + # The order here caters to the fact that C++ does not require restrict. + for ac_kw in __restrict __restrict__ _Restrict restrict; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +typedef int * int_ptr; + int foo (int_ptr $ac_kw ip) { + return ip[0]; + } +int +main () +{ +int s[1]; + int * $ac_kw t = s; + t[0] = 0; + return foo(t) + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_c_restrict=$ac_kw +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + test "$ac_cv_c_restrict" != no && break + done + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_restrict" >&5 +$as_echo "$ac_cv_c_restrict" >&6; } + + case $ac_cv_c_restrict in + restrict) ;; + no) $as_echo "#define restrict /**/" >>confdefs.h + ;; + *) cat >>confdefs.h <<_ACEOF +#define restrict $ac_cv_c_restrict +_ACEOF + ;; + esac + + + + + for ac_header in $ac_header_list +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + + + + + + HAVE_INET_NTOP=1 + INET_NTOP_LIB= + ss_save_LIBS=$LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing inet_ntop" >&5 +$as_echo_n "checking for library containing inet_ntop... " >&6; } +if ${ac_cv_search_inet_ntop+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_func_search_save_LIBS=$LIBS +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char inet_ntop (); +int +main () +{ +return inet_ntop (); + ; + return 0; +} +_ACEOF +for ac_lib in '' nsl resolv; do + if test -z "$ac_lib"; then + ac_res="none required" + else + ac_res=-l$ac_lib + LIBS="-l$ac_lib $ac_func_search_save_LIBS" + fi + if ac_fn_c_try_link "$LINENO"; then : + ac_cv_search_inet_ntop=$ac_res +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext + if ${ac_cv_search_inet_ntop+:} false; then : + break +fi +done +if ${ac_cv_search_inet_ntop+:} false; then : + +else + ac_cv_search_inet_ntop=no +fi +rm conftest.$ac_ext +LIBS=$ac_func_search_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_inet_ntop" >&5 +$as_echo "$ac_cv_search_inet_ntop" >&6; } +ac_res=$ac_cv_search_inet_ntop +if test "$ac_res" != no; then : + test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" + +else + for ac_func in inet_ntop +do : + ac_fn_c_check_func "$LINENO" "inet_ntop" "ac_cv_func_inet_ntop" +if test "x$ac_cv_func_inet_ntop" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_INET_NTOP 1 +_ACEOF + +fi +done + + if test $ac_cv_func_inet_ntop = no; then + HAVE_INET_NTOP=0 + fi + +fi + + LIBS=$ss_save_LIBS + + if test "$ac_cv_search_inet_ntop" != "no" \ + && test "$ac_cv_search_inet_ntop" != "none required"; then + INET_NTOP_LIB="$ac_cv_search_inet_ntop" + fi + + + ac_fn_c_check_decl "$LINENO" "inet_ntop" "ac_cv_have_decl_inet_ntop" "#include + #if HAVE_NETDB_H + # include + #endif + +" +if test "x$ac_cv_have_decl_inet_ntop" = xyes; then : + ac_have_decl=1 +else + ac_have_decl=0 +fi + +cat >>confdefs.h <<_ACEOF +#define HAVE_DECL_INET_NTOP $ac_have_decl +_ACEOF + + if test $ac_cv_have_decl_inet_ntop = no; then + HAVE_DECL_INET_NTOP=0 + fi + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for what kind of host" >&5 +$as_echo_n "checking for what kind of host... " >&6; } +case $host in + *-linux*) + os_support=linux + { $as_echo "$as_me:${as_lineno-$LINENO}: result: Linux" >&5 +$as_echo "Linux" >&6; } + ;; + *-mingw*) + +$as_echo "#define FD_SETSIZE 2048" >>confdefs.h + + +$as_echo "#define EV_FD_TO_WIN32_HANDLE(fd) (fd)" >>confdefs.h + + +$as_echo "#define EV_WIN32_HANDLE_TO_FD(handle) (handle)" >>confdefs.h + + +$as_echo "#define EV_WIN32_CLOSE_FD(fd) closesocket(fd)" >>confdefs.h + + + os_support=mingw + { $as_echo "$as_me:${as_lineno-$LINENO}: result: MinGW" >&5 +$as_echo "MinGW" >&6; } + ;; + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: transparent proxy does not support for $host" >&5 +$as_echo "transparent proxy does not support for $host" >&6; } + ;; +esac + + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ax_pthread_ok=no + +# We used to check for pthread.h first, but this fails if pthread.h +# requires special compiler flags (e.g. on True64 or Sequent). +# It gets checked for in the link test anyway. + +# First of all, check if the user has set any of the PTHREAD_LIBS, +# etcetera environment variables, and if threads linking works using +# them: +if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + save_LIBS="$LIBS" + LIBS="$PTHREAD_LIBS $LIBS" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS" >&5 +$as_echo_n "checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char pthread_join (); +int +main () +{ +return pthread_join (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_pthread_ok=yes +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 +$as_echo "$ax_pthread_ok" >&6; } + if test x"$ax_pthread_ok" = xno; then + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" + fi + LIBS="$save_LIBS" + CFLAGS="$save_CFLAGS" +fi + +# We must check for the threads library under a number of different +# names; the ordering is very important because some systems +# (e.g. DEC) have both -lpthread and -lpthreads, where one of the +# libraries is broken (non-POSIX). + +# Create a list of thread flags to try. Items starting with a "-" are +# C compiler flags, and other items are library names, except for "none" +# which indicates that we try without any flags at all, and "pthread-config" +# which is a program returning the flags for the Pth emulation library. + +ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" + +# The ordering *is* (sometimes) important. Some notes on the +# individual items follow: + +# pthreads: AIX (must check this before -lpthread) +# none: in case threads are in libc; should be tried before -Kthread and +# other compiler flags to prevent continual compiler warnings +# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) +# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) +# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) +# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads) +# -pthreads: Solaris/gcc +# -mthreads: Mingw32/gcc, Lynx/gcc +# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it +# doesn't hurt to check since this sometimes defines pthreads too; +# also defines -D_REENTRANT) +# ... -mt is also the pthreads flag for HP/aCC +# pthread: Linux, etcetera +# --thread-safe: KAI C++ +# pthread-config: use pthread-config program (for GNU Pth library) + +case ${host_os} in + solaris*) + + # On Solaris (at least, for some versions), libc contains stubbed + # (non-functional) versions of the pthreads routines, so link-based + # tests will erroneously succeed. (We need to link with -pthreads/-mt/ + # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather + # a function called by this macro, so we could check for that, but + # who knows whether they'll stub that too in a future libc.) So, + # we'll just look for -pthreads and -lpthread first: + + ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags" + ;; +esac + +# Clang doesn't consider unrecognized options an error unless we specify +# -Werror. We throw in some extra Clang-specific options to ensure that +# this doesn't happen for GCC, which also accepts -Werror. + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler needs -Werror to reject unknown flags" >&5 +$as_echo_n "checking if compiler needs -Werror to reject unknown flags... " >&6; } +save_CFLAGS="$CFLAGS" +ax_pthread_extra_flags="-Werror" +CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int foo(void); +int +main () +{ +foo() + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + ax_pthread_extra_flags= + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +CFLAGS="$save_CFLAGS" + +if test x"$ax_pthread_ok" = xno; then +for flag in $ax_pthread_flags; do + + case $flag in + none) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5 +$as_echo_n "checking whether pthreads work without any flags... " >&6; } + ;; + + -*) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $flag" >&5 +$as_echo_n "checking whether pthreads work with $flag... " >&6; } + PTHREAD_CFLAGS="$flag" + ;; + + pthread-config) + # Extract the first word of "pthread-config", so it can be a program name with args. +set dummy pthread-config; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ax_pthread_config+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ax_pthread_config"; then + ac_cv_prog_ax_pthread_config="$ax_pthread_config" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ax_pthread_config="yes" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_ax_pthread_config" && ac_cv_prog_ax_pthread_config="no" +fi +fi +ax_pthread_config=$ac_cv_prog_ax_pthread_config +if test -n "$ax_pthread_config"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_config" >&5 +$as_echo "$ax_pthread_config" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test x"$ax_pthread_config" = xno; then continue; fi + PTHREAD_CFLAGS="`pthread-config --cflags`" + PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + ;; + + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$flag" >&5 +$as_echo_n "checking for the pthreads library -l$flag... " >&6; } + PTHREAD_LIBS="-l$flag" + ;; + esac + + save_LIBS="$LIBS" + save_CFLAGS="$CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS $ax_pthread_extra_flags" + + # Check for various functions. We must include pthread.h, + # since some functions may be macros. (On the Sequent, we + # need a special flag -Kthread to make this header compile.) + # We check for pthread_join because it is in -lpthread on IRIX + # while pthread_create is in libc. We check for pthread_attr_init + # due to DEC craziness with -lpthreads. We check for + # pthread_cleanup_push because it is one of the few pthread + # functions on Solaris that doesn't have a non-functional libc stub. + # We try pthread_create on general principles. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + static void routine(void *a) { a = 0; } + static void *start_routine(void *a) { return a; } +int +main () +{ +pthread_t th; pthread_attr_t attr; + pthread_create(&th, 0, start_routine, 0); + pthread_join(th, 0); + pthread_attr_init(&attr); + pthread_cleanup_push(routine, 0); + pthread_cleanup_pop(0) /* ; */ + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_pthread_ok=yes +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + + LIBS="$save_LIBS" + CFLAGS="$save_CFLAGS" + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 +$as_echo "$ax_pthread_ok" >&6; } + if test "x$ax_pthread_ok" = xyes; then + break; + fi + + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" +done +fi + +# Various other checks: +if test "x$ax_pthread_ok" = xyes; then + save_LIBS="$LIBS" + LIBS="$PTHREAD_LIBS $LIBS" + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + + # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5 +$as_echo_n "checking for joinable pthread attribute... " >&6; } + attr_name=unknown + for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ +int attr = $attr; return attr /* ; */ + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + attr_name=$attr; break +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + done + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $attr_name" >&5 +$as_echo "$attr_name" >&6; } + if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then + +cat >>confdefs.h <<_ACEOF +#define PTHREAD_CREATE_JOINABLE $attr_name +_ACEOF + + fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if more special flags are required for pthreads" >&5 +$as_echo_n "checking if more special flags are required for pthreads... " >&6; } + flag=no + case ${host_os} in + aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";; + osf* | hpux*) flag="-D_REENTRANT";; + solaris*) + if test "$GCC" = "yes"; then + flag="-D_REENTRANT" + else + # TODO: What about Clang on Solaris? + flag="-mt -D_REENTRANT" + fi + ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $flag" >&5 +$as_echo "$flag" >&6; } + if test "x$flag" != xno; then + PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" + fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5 +$as_echo_n "checking for PTHREAD_PRIO_INHERIT... " >&6; } +if ${ax_cv_PTHREAD_PRIO_INHERIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ +int i = PTHREAD_PRIO_INHERIT; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_cv_PTHREAD_PRIO_INHERIT=yes +else + ax_cv_PTHREAD_PRIO_INHERIT=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_PRIO_INHERIT" >&5 +$as_echo "$ax_cv_PTHREAD_PRIO_INHERIT" >&6; } + if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"; then : + +$as_echo "#define HAVE_PTHREAD_PRIO_INHERIT 1" >>confdefs.h + +fi + + LIBS="$save_LIBS" + CFLAGS="$save_CFLAGS" + + # More AIX lossage: compile with *_r variant + if test "x$GCC" != xyes; then + case $host_os in + aix*) + case "x/$CC" in #( + x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6) : + #handle absolute path differently from PATH based program lookup + case "x$CC" in #( + x/*) : + if as_fn_executable_p ${CC}_r; then : + PTHREAD_CC="${CC}_r" +fi ;; #( + *) : + for ac_prog in ${CC}_r +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_PTHREAD_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$PTHREAD_CC"; then + ac_cv_prog_PTHREAD_CC="$PTHREAD_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_PTHREAD_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +PTHREAD_CC=$ac_cv_prog_PTHREAD_CC +if test -n "$PTHREAD_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PTHREAD_CC" >&5 +$as_echo "$PTHREAD_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$PTHREAD_CC" && break +done +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + ;; +esac ;; #( + *) : + ;; +esac + ;; + esac + fi +fi + +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + + + + + +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: +if test x"$ax_pthread_ok" = xyes; then + LIBS="$PTHREAD_LIBS $LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + CC="$PTHREAD_CC" + : +else + ax_pthread_ok=no + as_fn_error $? "Can not find pthreads. This is required." "$LINENO" 5 +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + + +ggl_check_stack_protector_save_CXXFLAGS="$CXXFLAGS" +ggl_check_stack_protector_save_CFLAGS="$CFLAGS" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if -fstack-protector and -fstack-protector-all are supported." >&5 +$as_echo_n "checking if -fstack-protector and -fstack-protector-all are supported.... " >&6; } + +CXXFLAGS="$CXXFLAGS -fstack-protector" +CFLAGS="$CFLAGS -fstack-protector" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int main() { + return 0; +} + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ggl_check_stack_protector_ok=yes +else + ggl_check_stack_protector_ok=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +CXXFLAGS="$ggl_check_stack_protector_save_CXXFLAGS -fstack-protector-all" +CFLAGS="$ggl_check_stack_protector_save_CFLAGS -fstack-protector-all" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int main() { + return 0; +} + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ggl_check_stack_protector_all_ok=yes +else + ggl_check_stack_protector_all_ok=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test "x$ggl_check_stack_protector_ok" = "xyes" -a \ + "x$ggl_check_stack_protector_all_ok" = "xyes"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + has_stack_protector=yes +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + has_stack_protector=no +fi + +CXXFLAGS="$ggl_check_stack_protector_save_CXXFLAGS" +CFLAGS="$ggl_check_stack_protector_save_CFLAGS" + + +# XXX - disable -fstack-protector due to missing libssp_nonshared +case "$host_os" in + *aix*) + { $as_echo "$as_me:${as_lineno-$LINENO}: -fstack-protector disabled on AIX" >&5 +$as_echo "$as_me: -fstack-protector disabled on AIX" >&6;} + has_stack_protector=no + ;; + *sunos*) + { $as_echo "$as_me:${as_lineno-$LINENO}: -fstack-protector disabled on SunOS" >&5 +$as_echo "$as_me: -fstack-protector disabled on SunOS" >&6;} + has_stack_protector=no + ;; + *solaris*) + { $as_echo "$as_me:${as_lineno-$LINENO}: -fstack-protector disabled on Solaris" >&5 +$as_echo "$as_me: -fstack-protector disabled on Solaris" >&6;} + has_stack_protector=no + ;; +esac + +# Check whether --enable-ssp was given. +if test "${enable_ssp+set}" = set; then : + enableval=$enable_ssp; + enable_ssp="no" + +else + + enable_ssp="yes" + +fi + + +if test x$has_stack_protector = xyes && test x$enable_ssp = xyes; then + CFLAGS="$CFLAGS -fstack-protector" + { $as_echo "$as_me:${as_lineno-$LINENO}: -fstack-protector enabled in CFLAGS" >&5 +$as_echo "$as_me: -fstack-protector enabled in CFLAGS" >&6;} +fi + + if test "$os_support" = "linux"; then + BUILD_REDIRECTOR_TRUE= + BUILD_REDIRECTOR_FALSE='#' +else + BUILD_REDIRECTOR_TRUE='#' + BUILD_REDIRECTOR_FALSE= +fi + + if test "$os_support" = "mingw"; then + BUILD_WINCOMPAT_TRUE= + BUILD_WINCOMPAT_FALSE='#' +else + BUILD_WINCOMPAT_TRUE='#' + BUILD_WINCOMPAT_FALSE= +fi + + +for ac_header in limits.h stdint.h inttypes.h arpa/inet.h fcntl.h langinfo.h locale.h netdb.h netinet/in.h stdlib.h string.h strings.h unistd.h sys/ioctl.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +for ac_header in sys/socket.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$ac_includes_default" +if test "x$ac_cv_header_sys_socket_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_SYS_SOCKET_H 1 +_ACEOF + +fi + +done + +for ac_header in net/if.h +do : + ac_fn_c_check_header_compile "$LINENO" "net/if.h" "ac_cv_header_net_if_h" " +#include +#ifdef STDC_HEADERS +# include +# include +#else +# ifdef HAVE_STDLIB_H +# include +# endif +#endif +#ifdef HAVE_SYS_SOCKET_H +# include +#endif + +" +if test "x$ac_cv_header_net_if_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_NET_IF_H 1 +_ACEOF + +fi + +done + + +case $host in + *-mingw*) + +$as_echo "#define CONNECT_IN_PROGRESS WSAEWOULDBLOCK" >>confdefs.h + + for ac_header in windows.h winsock2.h ws2tcpip.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +else + as_fn_error $? "Missing MinGW headers" "$LINENO" 5 +fi + +done + + ;; + *-linux*) + +$as_echo "#define CONNECT_IN_PROGRESS EINPROGRESS" >>confdefs.h + + for ac_header in linux/if.h linux/netfilter_ipv4.h linux/netfilter_ipv6/ip6_tables.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" " + #if HAVE_LIMITS_H + #include + #endif + /* Netfilter ip(6)tables v1.4.0 has broken headers */ + #if HAVE_NETINET_IN_H + #include + #endif + #if HAVE_LINUX_IF_H + #include + #endif + #if HAVE_SYS_SOCKET_H + #include + #endif + +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +else + as_fn_error $? "Missing netfilter headers" "$LINENO" 5 +fi + +done + + ;; + *) + # These are POSIX-like systems using BSD-like sockets API. + +$as_echo "#define CONNECT_IN_PROGRESS EINPROGRESS" >>confdefs.h + + ;; +esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5 +$as_echo_n "checking whether byte ordering is bigendian... " >&6; } +if ${ac_cv_c_bigendian+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_c_bigendian=unknown + # See if we're dealing with a universal compiler. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifndef __APPLE_CC__ + not a universal capable compiler + #endif + typedef int dummy; + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + + # Check for potential -arch flags. It is not universal unless + # there are at least two -arch flags with different values. + ac_arch= + ac_prev= + for ac_word in $CC $CFLAGS $CPPFLAGS $LDFLAGS; do + if test -n "$ac_prev"; then + case $ac_word in + i?86 | x86_64 | ppc | ppc64) + if test -z "$ac_arch" || test "$ac_arch" = "$ac_word"; then + ac_arch=$ac_word + else + ac_cv_c_bigendian=universal + break + fi + ;; + esac + ac_prev= + elif test "x$ac_word" = "x-arch"; then + ac_prev=arch + fi + done +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + if test $ac_cv_c_bigendian = unknown; then + # See if sys/param.h defines the BYTE_ORDER macro. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + #include + +int +main () +{ +#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \ + && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \ + && LITTLE_ENDIAN) + bogus endian macros + #endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + # It does; now see whether it defined to BIG_ENDIAN or not. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + #include + +int +main () +{ +#if BYTE_ORDER != BIG_ENDIAN + not big endian + #endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_c_bigendian=yes +else + ac_cv_c_bigendian=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + fi + if test $ac_cv_c_bigendian = unknown; then + # See if defines _LITTLE_ENDIAN or _BIG_ENDIAN (e.g., Solaris). + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +int +main () +{ +#if ! (defined _LITTLE_ENDIAN || defined _BIG_ENDIAN) + bogus endian macros + #endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + # It does; now see whether it defined to _BIG_ENDIAN or not. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +int +main () +{ +#ifndef _BIG_ENDIAN + not big endian + #endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_c_bigendian=yes +else + ac_cv_c_bigendian=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + fi + if test $ac_cv_c_bigendian = unknown; then + # Compile a test program. + if test "$cross_compiling" = yes; then : + # Try to guess by grepping values from an object file. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +short int ascii_mm[] = + { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 }; + short int ascii_ii[] = + { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 }; + int use_ascii (int i) { + return ascii_mm[i] + ascii_ii[i]; + } + short int ebcdic_ii[] = + { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 }; + short int ebcdic_mm[] = + { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 }; + int use_ebcdic (int i) { + return ebcdic_mm[i] + ebcdic_ii[i]; + } + extern int foo; + +int +main () +{ +return use_ascii (foo) == use_ebcdic (foo); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then + ac_cv_c_bigendian=yes + fi + if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then + if test "$ac_cv_c_bigendian" = unknown; then + ac_cv_c_bigendian=no + else + # finding both strings is unlikely to happen, but who knows? + ac_cv_c_bigendian=unknown + fi + fi +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_includes_default +int +main () +{ + + /* Are we little or big endian? From Harbison&Steele. */ + union + { + long int l; + char c[sizeof (long int)]; + } u; + u.l = 1; + return u.c[sizeof (long int) - 1] == 1; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + ac_cv_c_bigendian=no +else + ac_cv_c_bigendian=yes +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5 +$as_echo "$ac_cv_c_bigendian" >&6; } + case $ac_cv_c_bigendian in #( + yes) + $as_echo "#define WORDS_BIGENDIAN 1" >>confdefs.h +;; #( + no) + ;; #( + universal) + +$as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h + + ;; #( + *) + as_fn_error $? "unknown endianness + presetting ac_cv_c_bigendian=no (or yes) will help" "$LINENO" 5 ;; + esac + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for inline" >&5 +$as_echo_n "checking for inline... " >&6; } +if ${ac_cv_c_inline+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_c_inline=no +for ac_kw in inline __inline__ __inline; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifndef __cplusplus +typedef int foo_t; +static $ac_kw foo_t static_foo () {return 0; } +$ac_kw foo_t foo () {return 0; } +#endif + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_c_inline=$ac_kw +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + test "$ac_cv_c_inline" != no && break +done + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5 +$as_echo "$ac_cv_c_inline" >&6; } + +case $ac_cv_c_inline in + inline | yes) ;; + *) + case $ac_cv_c_inline in + no) ac_val=;; + *) ac_val=$ac_cv_c_inline;; + esac + cat >>confdefs.h <<_ACEOF +#ifndef __cplusplus +#define inline $ac_val +#endif +_ACEOF + ;; +esac + +ac_fn_c_check_type "$LINENO" "ssize_t" "ac_cv_type_ssize_t" "$ac_includes_default" +if test "x$ac_cv_type_ssize_t" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define ssize_t int +_ACEOF + +fi + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable assertions" >&5 +$as_echo_n "checking whether to enable assertions... " >&6; } + # Check whether --enable-assert was given. +if test "${enable_assert+set}" = set; then : + enableval=$enable_assert; ac_enable_assert=$enableval + if test "x$enableval" = xno; then : + +$as_echo "#define NDEBUG 1" >>confdefs.h + +elif test "x$enableval" != xyes; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: invalid argument supplied to --enable-assert" >&5 +$as_echo "$as_me: WARNING: invalid argument supplied to --enable-assert" >&2;} + ac_enable_assert=yes +fi +else + ac_enable_assert=yes +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_enable_assert" >&5 +$as_echo "$ac_enable_assert" >&6; } + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 +$as_echo_n "checking for ANSI C header files... " >&6; } +if ${ac_cv_header_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_stdc=yes +else + ac_cv_header_stdc=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then : + : +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 +$as_echo "$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +$as_echo "#define STDC_HEADERS 1" >>confdefs.h + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sys/wait.h that is POSIX.1 compatible" >&5 +$as_echo_n "checking for sys/wait.h that is POSIX.1 compatible... " >&6; } +if ${ac_cv_header_sys_wait_h+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#ifndef WEXITSTATUS +# define WEXITSTATUS(stat_val) ((unsigned int) (stat_val) >> 8) +#endif +#ifndef WIFEXITED +# define WIFEXITED(stat_val) (((stat_val) & 255) == 0) +#endif + +int +main () +{ + int s; + wait (&s); + s = WIFEXITED (s) ? WEXITSTATUS (s) : 1; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_sys_wait_h=yes +else + ac_cv_header_sys_wait_h=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_sys_wait_h" >&5 +$as_echo "$ac_cv_header_sys_wait_h" >&6; } +if test $ac_cv_header_sys_wait_h = yes; then + +$as_echo "#define HAVE_SYS_WAIT_H 1" >>confdefs.h + +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5 +$as_echo_n "checking for an ANSI C-conforming const... " >&6; } +if ${ac_cv_c_const+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + +#ifndef __cplusplus + /* Ultrix mips cc rejects this sort of thing. */ + typedef int charset[2]; + const charset cs = { 0, 0 }; + /* SunOS 4.1.1 cc rejects this. */ + char const *const *pcpcc; + char **ppc; + /* NEC SVR4.0.2 mips cc rejects this. */ + struct point {int x, y;}; + static struct point const zero = {0,0}; + /* AIX XL C 1.02.0.0 rejects this. + It does not let you subtract one const X* pointer from another in + an arm of an if-expression whose if-part is not a constant + expression */ + const char *g = "string"; + pcpcc = &g + (g ? g-g : 0); + /* HPUX 7.0 cc rejects these. */ + ++pcpcc; + ppc = (char**) pcpcc; + pcpcc = (char const *const *) ppc; + { /* SCO 3.2v4 cc rejects this sort of thing. */ + char tx; + char *t = &tx; + char const *s = 0 ? (char *) 0 : (char const *) 0; + + *t++ = 0; + if (s) return 0; + } + { /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */ + int x[] = {25, 17}; + const int *foo = &x[0]; + ++foo; + } + { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */ + typedef const int *iptr; + iptr p = 0; + ++p; + } + { /* AIX XL C 1.02.0.0 rejects this sort of thing, saying + "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */ + struct s { int j; const int *ap[3]; } bx; + struct s *b = &bx; b->j = 5; + } + { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */ + const int foo = 10; + if (!foo) return 0; + } + return !cs[0] && !zero.x; +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_c_const=yes +else + ac_cv_c_const=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5 +$as_echo "$ac_cv_c_const" >&6; } +if test $ac_cv_c_const = no; then + +$as_echo "#define const /**/" >>confdefs.h + +fi + +ac_fn_c_check_type "$LINENO" "pid_t" "ac_cv_type_pid_t" "$ac_includes_default" +if test "x$ac_cv_type_pid_t" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define pid_t int +_ACEOF + +fi + +ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default" +if test "x$ac_cv_type_size_t" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define size_t unsigned int +_ACEOF + +fi + +ac_fn_c_check_type "$LINENO" "ssize_t" "ac_cv_type_ssize_t" "$ac_includes_default" +if test "x$ac_cv_type_ssize_t" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define ssize_t int +_ACEOF + +fi + +ac_fn_c_find_uintX_t "$LINENO" "16" "ac_cv_c_uint16_t" +case $ac_cv_c_uint16_t in #( + no|yes) ;; #( + *) + + +cat >>confdefs.h <<_ACEOF +#define uint16_t $ac_cv_c_uint16_t +_ACEOF +;; + esac + +ac_fn_c_find_uintX_t "$LINENO" "8" "ac_cv_c_uint8_t" +case $ac_cv_c_uint8_t in #( + no|yes) ;; #( + *) + +$as_echo "#define _UINT8_T 1" >>confdefs.h + + +cat >>confdefs.h <<_ACEOF +#define uint8_t $ac_cv_c_uint8_t +_ACEOF +;; + esac + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether time.h and sys/time.h may both be included" >&5 +$as_echo_n "checking whether time.h and sys/time.h may both be included... " >&6; } +if ${ac_cv_header_time+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include + +int +main () +{ +if ((struct tm *) 0) +return 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_time=yes +else + ac_cv_header_time=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_time" >&5 +$as_echo "$ac_cv_header_time" >&6; } +if test $ac_cv_header_time = yes; then + +$as_echo "#define TIME_WITH_SYS_TIME 1" >>confdefs.h + +fi + + +for ac_header in vfork.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "vfork.h" "ac_cv_header_vfork_h" "$ac_includes_default" +if test "x$ac_cv_header_vfork_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_VFORK_H 1 +_ACEOF + +fi + +done + +for ac_func in fork vfork +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + +if test "x$ac_cv_func_fork" = xyes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working fork" >&5 +$as_echo_n "checking for working fork... " >&6; } +if ${ac_cv_func_fork_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + ac_cv_func_fork_works=cross +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_includes_default +int +main () +{ + + /* By Ruediger Kuhlmann. */ + return fork () < 0; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + ac_cv_func_fork_works=yes +else + ac_cv_func_fork_works=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_fork_works" >&5 +$as_echo "$ac_cv_func_fork_works" >&6; } + +else + ac_cv_func_fork_works=$ac_cv_func_fork +fi +if test "x$ac_cv_func_fork_works" = xcross; then + case $host in + *-*-amigaos* | *-*-msdosdjgpp*) + # Override, as these systems have only a dummy fork() stub + ac_cv_func_fork_works=no + ;; + *) + ac_cv_func_fork_works=yes + ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&5 +$as_echo "$as_me: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&2;} +fi +ac_cv_func_vfork_works=$ac_cv_func_vfork +if test "x$ac_cv_func_vfork" = xyes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working vfork" >&5 +$as_echo_n "checking for working vfork... " >&6; } +if ${ac_cv_func_vfork_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + ac_cv_func_vfork_works=cross +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +/* Thanks to Paul Eggert for this test. */ +$ac_includes_default +#include +#ifdef HAVE_VFORK_H +# include +#endif +/* On some sparc systems, changes by the child to local and incoming + argument registers are propagated back to the parent. The compiler + is told about this with #include , but some compilers + (e.g. gcc -O) don't grok . Test for this by using a + static variable whose address is put into a register that is + clobbered by the vfork. */ +static void +#ifdef __cplusplus +sparc_address_test (int arg) +# else +sparc_address_test (arg) int arg; +#endif +{ + static pid_t child; + if (!child) { + child = vfork (); + if (child < 0) { + perror ("vfork"); + _exit(2); + } + if (!child) { + arg = getpid(); + write(-1, "", 0); + _exit (arg); + } + } +} + +int +main () +{ + pid_t parent = getpid (); + pid_t child; + + sparc_address_test (0); + + child = vfork (); + + if (child == 0) { + /* Here is another test for sparc vfork register problems. This + test uses lots of local variables, at least as many local + variables as main has allocated so far including compiler + temporaries. 4 locals are enough for gcc 1.40.3 on a Solaris + 4.1.3 sparc, but we use 8 to be safe. A buggy compiler should + reuse the register of parent for one of the local variables, + since it will think that parent can't possibly be used any more + in this routine. Assigning to the local variable will thus + munge parent in the parent process. */ + pid_t + p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(), + p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid(); + /* Convince the compiler that p..p7 are live; otherwise, it might + use the same hardware register for all 8 local variables. */ + if (p != p1 || p != p2 || p != p3 || p != p4 + || p != p5 || p != p6 || p != p7) + _exit(1); + + /* On some systems (e.g. IRIX 3.3), vfork doesn't separate parent + from child file descriptors. If the child closes a descriptor + before it execs or exits, this munges the parent's descriptor + as well. Test for this by closing stdout in the child. */ + _exit(close(fileno(stdout)) != 0); + } else { + int status; + struct stat st; + + while (wait(&status) != child) + ; + return ( + /* Was there some problem with vforking? */ + child < 0 + + /* Did the child fail? (This shouldn't happen.) */ + || status + + /* Did the vfork/compiler bug occur? */ + || parent != getpid() + + /* Did the file descriptor bug occur? */ + || fstat(fileno(stdout), &st) != 0 + ); + } +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + ac_cv_func_vfork_works=yes +else + ac_cv_func_vfork_works=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_vfork_works" >&5 +$as_echo "$ac_cv_func_vfork_works" >&6; } + +fi; +if test "x$ac_cv_func_fork_works" = xcross; then + ac_cv_func_vfork_works=$ac_cv_func_vfork + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&5 +$as_echo "$as_me: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&2;} +fi + +if test "x$ac_cv_func_vfork_works" = xyes; then + +$as_echo "#define HAVE_WORKING_VFORK 1" >>confdefs.h + +else + +$as_echo "#define vfork fork" >>confdefs.h + +fi +if test "x$ac_cv_func_fork_works" = xyes; then + +$as_echo "#define HAVE_WORKING_FORK 1" >>confdefs.h + +fi + +for ac_header in sys/select.h sys/socket.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking types of arguments for select" >&5 +$as_echo_n "checking types of arguments for select... " >&6; } +if ${ac_cv_func_select_args+:} false; then : + $as_echo_n "(cached) " >&6 +else + for ac_arg234 in 'fd_set *' 'int *' 'void *'; do + for ac_arg1 in 'int' 'size_t' 'unsigned long int' 'unsigned int'; do + for ac_arg5 in 'struct timeval *' 'const struct timeval *'; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_includes_default +#ifdef HAVE_SYS_SELECT_H +# include +#endif +#ifdef HAVE_SYS_SOCKET_H +# include +#endif + +int +main () +{ +extern int select ($ac_arg1, + $ac_arg234, $ac_arg234, $ac_arg234, + $ac_arg5); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_func_select_args="$ac_arg1,$ac_arg234,$ac_arg5"; break 3 +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + done + done +done +# Provide a safe default value. +: "${ac_cv_func_select_args=int,int *,struct timeval *}" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_select_args" >&5 +$as_echo "$ac_cv_func_select_args" >&6; } +ac_save_IFS=$IFS; IFS=',' +set dummy `echo "$ac_cv_func_select_args" | sed 's/\*/\*/g'` +IFS=$ac_save_IFS +shift + +cat >>confdefs.h <<_ACEOF +#define SELECT_TYPE_ARG1 $1 +_ACEOF + + +cat >>confdefs.h <<_ACEOF +#define SELECT_TYPE_ARG234 ($2) +_ACEOF + + +cat >>confdefs.h <<_ACEOF +#define SELECT_TYPE_ARG5 ($3) +_ACEOF + +rm -f conftest* + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking return type of signal handlers" >&5 +$as_echo_n "checking return type of signal handlers... " >&6; } +if ${ac_cv_type_signal+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include + +int +main () +{ +return *(signal (0, 0)) (0) == 1; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_type_signal=int +else + ac_cv_type_signal=void +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_signal" >&5 +$as_echo "$ac_cv_type_signal" >&6; } + +cat >>confdefs.h <<_ACEOF +#define RETSIGTYPE $ac_cv_type_signal +_ACEOF + + +for ac_func in memset select setresuid setreuid strerror getpwnam_r setrlimit +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + +if test "$ac_cv_func_select" != "yes"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for select in ws2_32" >&5 +$as_echo_n "checking for select in ws2_32... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#ifdef HAVE_WINSOCK2_H +#ifndef WIN32_LEAN_AND_MEAN +#define WIN32_LEAN_AND_MEAN +#endif +#include +#endif + +int +main () +{ + + select(0,(fd_set *)NULL,(fd_set *)NULL,(fd_set *)NULL,(struct timeval *)NULL); + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + HAVE_SELECT="1" + +cat >>confdefs.h <<_ACEOF +#define HAVE_SELECT 1 +_ACEOF + + HAVE_SYS_SELECT_H="1" + +cat >>confdefs.h <<_ACEOF +#define HAVE_SYS_SELECT_H 1 +_ACEOF + + +else + + as_fn_error $? "no" "$LINENO" 5 + +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for connect in -lsocket" >&5 +$as_echo_n "checking for connect in -lsocket... " >&6; } +if ${ac_cv_lib_socket_connect+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lsocket $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char connect (); +int +main () +{ +return connect (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_socket_connect=yes +else + ac_cv_lib_socket_connect=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_connect" >&5 +$as_echo "$ac_cv_lib_socket_connect" >&6; } +if test "x$ac_cv_lib_socket_connect" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_LIBSOCKET 1 +_ACEOF + + LIBS="-lsocket $LIBS" + +fi + + +for ac_func in malloc memset socket +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + + +$as_echo "#define HAVE_IPv6 1" >>confdefs.h + + + + +if test -z "$USE_SYSTEM_SHARED_LIB_TRUE"; then : + else + subdirs="$subdirs libsodium" + +fi + +ac_config_files="$ac_config_files shadowsocks-libev.pc Makefile libcork/Makefile libipset/Makefile src/Makefile" + +if test -z "$USE_SYSTEM_SHARED_LIB_TRUE"; then : + else + ac_config_files="$ac_config_files libudns/Makefile libev/Makefile" + +fi + +if test -z "$ENABLE_DOCUMENTATION_TRUE"; then : + ac_config_files="$ac_config_files doc/Makefile" + + +fi + +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, we kill variables containing newlines. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +( + for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do + eval ac_val=\$$ac_var + case $ac_val in #( + *${as_nl}*) + case $ac_var in #( + *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 +$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; + esac + case $ac_var in #( + _ | IFS | as_nl) ;; #( + BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( + *) { eval $ac_var=; unset $ac_var;} ;; + esac ;; + esac + done + + (set) 2>&1 | + case $as_nl`(ac_space=' '; set) 2>&1` in #( + *${as_nl}ac_space=\ *) + # `set' does not quote correctly, so add quotes: double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \. + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; #( + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" + ;; + esac | + sort +) | + sed ' + /^ac_cv_env_/b end + t clear + :clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + :end' >>confcache +if diff "$cache_file" confcache >/dev/null 2>&1; then :; else + if test -w "$cache_file"; then + if test "x$cache_file" != "x/dev/null"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5 +$as_echo "$as_me: updating cache $cache_file" >&6;} + if test ! -f "$cache_file" || test -h "$cache_file"; then + cat confcache >"$cache_file" + else + case $cache_file in #( + */* | ?:*) + mv -f confcache "$cache_file"$$ && + mv -f "$cache_file"$$ "$cache_file" ;; #( + *) + mv -f confcache "$cache_file" ;; + esac + fi + fi + else + { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5 +$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;} + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +DEFS=-DHAVE_CONFIG_H + +ac_libobjs= +ac_ltlibobjs= +U= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. 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"$LINENO" 5 +fi +if test -z "${USE_SYSTEM_SHARED_LIB_TRUE}" && test -z "${USE_SYSTEM_SHARED_LIB_FALSE}"; then + as_fn_error $? "conditional \"USE_SYSTEM_SHARED_LIB\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${ENABLE_DOCUMENTATION_TRUE}" && test -z "${ENABLE_DOCUMENTATION_FALSE}"; then + as_fn_error $? "conditional \"ENABLE_DOCUMENTATION\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${BUILD_REDIRECTOR_TRUE}" && test -z "${BUILD_REDIRECTOR_FALSE}"; then + as_fn_error $? "conditional \"BUILD_REDIRECTOR\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${BUILD_WINCOMPAT_TRUE}" && test -z "${BUILD_WINCOMPAT_FALSE}"; then + as_fn_error $? "conditional \"BUILD_WINCOMPAT\" was never defined. +Usually this means the macro was only invoked conditionally." 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"cannot create directory $as_dir" + + +} # as_fn_mkdir_p +if mkdir -p . 2>/dev/null; then + as_mkdir_p='mkdir -p "$as_dir"' +else + test -d ./-p && rmdir ./-p + as_mkdir_p=false +fi + + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +as_test_x='test -x' +as_executable_p=as_fn_executable_p + +# Sed expression to map a string onto a valid CPP name. +as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'" + +# Sed expression to map a string onto a valid variable name. +as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'" + + +exec 6>&1 +## ----------------------------------- ## +## Main body of $CONFIG_STATUS script. ## +## ----------------------------------- ## +_ASEOF +test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# Save the log message, to keep $0 and so on meaningful, and to +# report actual input values of CONFIG_FILES etc. instead of their +# values after options handling. +ac_log=" +This file was extended by shadowsocks-libev $as_me 2.5.6, which was +generated by GNU Autoconf 2.69. Invocation command line was + + CONFIG_FILES = $CONFIG_FILES + CONFIG_HEADERS = $CONFIG_HEADERS + CONFIG_LINKS = $CONFIG_LINKS + CONFIG_COMMANDS = $CONFIG_COMMANDS + $ $0 $@ + +on `(hostname || uname -n) 2>/dev/null | sed 1q` +" + +_ACEOF + +case $ac_config_files in *" +"*) set x $ac_config_files; shift; ac_config_files=$*;; +esac + +case $ac_config_headers in *" +"*) set x $ac_config_headers; shift; ac_config_headers=$*;; +esac + + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# Files that config.status was made for. +config_files="$ac_config_files" +config_headers="$ac_config_headers" +config_commands="$ac_config_commands" + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +ac_cs_usage="\ +\`$as_me' instantiates files and other configuration actions +from templates according to the current configuration. Unless the files +and actions are specified as TAGs, all are instantiated by default. + +Usage: $0 [OPTION]... [TAG]... + + -h, --help print this help, then exit + -V, --version print version number and configuration settings, then exit + --config print configuration, then exit + -q, --quiet, --silent + do not print progress messages + -d, --debug don't remove temporary files + --recheck update $as_me by reconfiguring in the same conditions + --file=FILE[:TEMPLATE] + instantiate the configuration file FILE + --header=FILE[:TEMPLATE] + instantiate the configuration header FILE + +Configuration files: +$config_files + +Configuration headers: +$config_headers + +Configuration commands: +$config_commands + +Report bugs to ." + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`" +ac_cs_version="\\ +shadowsocks-libev config.status 2.5.6 +configured by $0, generated by GNU Autoconf 2.69, + with options \\"\$ac_cs_config\\" + +Copyright (C) 2012 Free Software Foundation, Inc. +This config.status script is free software; the Free Software Foundation +gives unlimited permission to copy, distribute and modify it." + +ac_pwd='$ac_pwd' +srcdir='$srcdir' +INSTALL='$INSTALL' +MKDIR_P='$MKDIR_P' +AWK='$AWK' +test -n "\$AWK" || AWK=awk +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# The default lists apply if the user does not specify any file. +ac_need_defaults=: +while test $# != 0 +do + case $1 in + --*=?*) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'` + ac_shift=: + ;; + --*=) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg= + ac_shift=: + ;; + *) + ac_option=$1 + ac_optarg=$2 + ac_shift=shift + ;; + esac + + case $ac_option in + # Handling of the options. + -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) + ac_cs_recheck=: ;; + --version | --versio | --versi | --vers | --ver | --ve | --v | -V ) + $as_echo "$ac_cs_version"; exit ;; + --config | --confi | --conf | --con | --co | --c ) + $as_echo "$ac_cs_config"; exit ;; + --debug | --debu | --deb | --de | --d | -d ) + debug=: ;; + --file | --fil | --fi | --f ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + '') as_fn_error $? "missing file argument" ;; + esac + as_fn_append CONFIG_FILES " '$ac_optarg'" + ac_need_defaults=false;; + --header | --heade | --head | --hea ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + as_fn_append CONFIG_HEADERS " '$ac_optarg'" + ac_need_defaults=false;; + --he | --h) + # Conflict between --help and --header + as_fn_error $? "ambiguous option: \`$1' +Try \`$0 --help' for more information.";; + --help | --hel | -h ) + $as_echo "$ac_cs_usage"; exit ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil | --si | --s) + ac_cs_silent=: ;; + + # This is an error. + -*) as_fn_error $? "unrecognized option: \`$1' +Try \`$0 --help' for more information." ;; + + *) as_fn_append ac_config_targets " $1" + ac_need_defaults=false ;; + + esac + shift +done + +ac_configure_extra_args= + +if $ac_cs_silent; then + exec 6>/dev/null + ac_configure_extra_args="$ac_configure_extra_args --silent" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +if \$ac_cs_recheck; then + set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion + shift + \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6 + CONFIG_SHELL='$SHELL' + export CONFIG_SHELL + exec "\$@" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +exec 5>>config.log +{ + echo + sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX +## Running $as_me. ## +_ASBOX + $as_echo "$ac_log" +} >&5 + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# +# INIT-COMMANDS +# +AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir" + + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +sed_quote_subst='$sed_quote_subst' +double_quote_subst='$double_quote_subst' +delay_variable_subst='$delay_variable_subst' +enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`' +enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`' +macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`' +macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`' +pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`' +enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`' +SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`' +ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`' +PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`' +host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`' +host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`' +host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`' +build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`' +build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`' +build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`' +SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`' +Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`' +GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`' +EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`' +FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`' +LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`' +NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`' +LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`' +max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`' +ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`' +exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`' +lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`' +lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`' +lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`' +lt_cv_to_host_file_cmd='`$ECHO "$lt_cv_to_host_file_cmd" | $SED "$delay_single_quote_subst"`' +lt_cv_to_tool_file_cmd='`$ECHO "$lt_cv_to_tool_file_cmd" | $SED "$delay_single_quote_subst"`' +reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`' +reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`' +OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`' +deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`' +file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`' +file_magic_glob='`$ECHO "$file_magic_glob" | $SED "$delay_single_quote_subst"`' +want_nocaseglob='`$ECHO "$want_nocaseglob" | $SED "$delay_single_quote_subst"`' +DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`' +sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`' +AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`' +AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`' +archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`' +STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`' +RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`' +old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`' +old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`' +old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`' +lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`' +CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`' +CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`' +compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`' +GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`' +lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`' +lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`' +lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`' +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`' +nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`' +lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`' +objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`' +MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`' +lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`' +need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`' +MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`' +DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`' +NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`' +LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`' +OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`' +OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`' +libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`' +shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`' +extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`' +archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`' +enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`' +export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`' +whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`' +compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`' +old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`' +old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`' +archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`' +archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`' +module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`' +module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`' +with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`' +allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`' +no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`' +hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`' +hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`' +hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`' +hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`' +hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`' +inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`' +link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`' +always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`' +export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`' +exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`' +include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`' +prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`' +postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`' +file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`' +variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`' +need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`' +need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`' +version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`' +runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`' +shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`' +shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`' +libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`' +library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`' +soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`' +install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`' +postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`' +postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`' +finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`' +finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`' +hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`' +sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`' +sys_lib_dlsearch_path_spec='`$ECHO "$sys_lib_dlsearch_path_spec" | $SED "$delay_single_quote_subst"`' +hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`' +enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`' +enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`' +enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`' +old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`' +striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`' + +LTCC='$LTCC' +LTCFLAGS='$LTCFLAGS' +compiler='$compiler_DEFAULT' + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$1 +_LTECHO_EOF' +} + +# Quote evaled strings. +for var in SHELL \ +ECHO \ +PATH_SEPARATOR \ +SED \ +GREP \ +EGREP \ +FGREP \ +LD \ +NM \ +LN_S \ +lt_SP2NL \ +lt_NL2SP \ +reload_flag \ +OBJDUMP \ +deplibs_check_method \ +file_magic_cmd \ +file_magic_glob \ +want_nocaseglob \ +DLLTOOL \ +sharedlib_from_linklib_cmd \ +AR \ +AR_FLAGS \ +archiver_list_spec \ +STRIP \ +RANLIB \ +CC \ +CFLAGS \ +compiler \ +lt_cv_sys_global_symbol_pipe \ +lt_cv_sys_global_symbol_to_cdecl \ +lt_cv_sys_global_symbol_to_c_name_address \ +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \ +nm_file_list_spec \ +lt_prog_compiler_no_builtin_flag \ +lt_prog_compiler_pic \ +lt_prog_compiler_wl \ +lt_prog_compiler_static \ +lt_cv_prog_compiler_c_o \ +need_locks \ +MANIFEST_TOOL \ +DSYMUTIL \ +NMEDIT \ +LIPO \ +OTOOL \ +OTOOL64 \ +shrext_cmds \ +export_dynamic_flag_spec \ +whole_archive_flag_spec \ +compiler_needs_object \ +with_gnu_ld \ +allow_undefined_flag \ +no_undefined_flag \ +hardcode_libdir_flag_spec \ +hardcode_libdir_separator \ +exclude_expsyms \ +include_expsyms \ +file_list_spec \ +variables_saved_for_relink \ +libname_spec \ +library_names_spec \ +soname_spec \ +install_override_mode \ +finish_eval \ +old_striplib \ +striplib; do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[\\\\\\\`\\"\\\$]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +# Double-quote double-evaled strings. +for var in reload_cmds \ +old_postinstall_cmds \ +old_postuninstall_cmds \ +old_archive_cmds \ +extract_expsyms_cmds \ +old_archive_from_new_cmds \ +old_archive_from_expsyms_cmds \ +archive_cmds \ +archive_expsym_cmds \ +module_cmds \ +module_expsym_cmds \ +export_symbols_cmds \ +prelink_cmds \ +postlink_cmds \ +postinstall_cmds \ +postuninstall_cmds \ +finish_cmds \ +sys_lib_search_path_spec \ +sys_lib_dlsearch_path_spec; do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[\\\\\\\`\\"\\\$]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +ac_aux_dir='$ac_aux_dir' +xsi_shell='$xsi_shell' +lt_shell_append='$lt_shell_append' + +# See if we are running on zsh, and set the options which allow our +# commands through without removal of \ escapes INIT. +if test -n "\${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST +fi + + + PACKAGE='$PACKAGE' + VERSION='$VERSION' + TIMESTAMP='$TIMESTAMP' + RM='$RM' + ofile='$ofile' + + + + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + +# Handling of arguments. +for ac_config_target in $ac_config_targets +do + case $ac_config_target in + "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;; + "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;; + "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;; + "shadowsocks-libev.pc") CONFIG_FILES="$CONFIG_FILES shadowsocks-libev.pc" ;; + "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; + "libcork/Makefile") CONFIG_FILES="$CONFIG_FILES libcork/Makefile" ;; + "libipset/Makefile") CONFIG_FILES="$CONFIG_FILES libipset/Makefile" ;; + "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;; + "libudns/Makefile") CONFIG_FILES="$CONFIG_FILES libudns/Makefile" ;; + "libev/Makefile") CONFIG_FILES="$CONFIG_FILES libev/Makefile" ;; + "doc/Makefile") CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;; + + *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;; + esac +done + + +# If the user did not use the arguments to specify the items to instantiate, +# then the envvar interface is used. Set only those that are not. +# We use the long form for the default assignment because of an extremely +# bizarre bug on SunOS 4.1.3. +if $ac_need_defaults; then + test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files + test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers + test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands +fi + +# Have a temporary directory for convenience. Make it in the build tree +# simply because there is no reason against having it here, and in addition, +# creating and moving files from /tmp can sometimes cause problems. +# Hook for its removal unless debugging. +# Note that there is a small window in which the directory will not be cleaned: +# after its creation but before its name has been assigned to `$tmp'. +$debug || +{ + tmp= ac_tmp= + trap 'exit_status=$? + : "${ac_tmp:=$tmp}" + { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status +' 0 + trap 'as_fn_exit 1' 1 2 13 15 +} +# Create a (secure) tmp directory for tmp files. + +{ + tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && + test -d "$tmp" +} || +{ + tmp=./conf$$-$RANDOM + (umask 077 && mkdir "$tmp") +} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5 +ac_tmp=$tmp + +# Set up the scripts for CONFIG_FILES section. +# No need to generate them if there are no CONFIG_FILES. +# This happens for instance with `./config.status config.h'. +if test -n "$CONFIG_FILES"; then + + +ac_cr=`echo X | tr X '\015'` +# On cygwin, bash can eat \r inside `` if the user requested igncr. +# But we know of no other shell where ac_cr would be empty at this +# point, so we can use a bashism as a fallback. +if test "x$ac_cr" = x; then + eval ac_cr=\$\'\\r\' +fi +ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null` +if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then + ac_cs_awk_cr='\\r' +else + ac_cs_awk_cr=$ac_cr +fi + +echo 'BEGIN {' >"$ac_tmp/subs1.awk" && +_ACEOF + + +{ + echo "cat >conf$$subs.awk <<_ACEOF" && + echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' && + echo "_ACEOF" +} >conf$$subs.sh || + as_fn_error $? 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"could not setup config files machinery" "$LINENO" 5 +_ACEOF + +# VPATH may cause trouble with some makes, so we remove sole $(srcdir), +# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{ +h +s/// +s/^/:/ +s/[ ]*$/:/ +s/:\$(srcdir):/:/g +s/:\${srcdir}:/:/g +s/:@srcdir@:/:/g +s/^:*// +s/:*$// +x +s/\(=[ ]*\).*/\1/ +G +s/\n// +s/^[^=]*=[ ]*$// +}' +fi + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +fi # test -n "$CONFIG_FILES" + +# Set up the scripts for CONFIG_HEADERS section. +# No need to generate them if there are no CONFIG_HEADERS. +# This happens for instance with `./config.status Makefile'. +if test -n "$CONFIG_HEADERS"; then +cat >"$ac_tmp/defines.awk" <<\_ACAWK || +BEGIN { +_ACEOF + +# Transform confdefs.h into an awk script `defines.awk', embedded as +# here-document in config.status, that substitutes the proper values into +# config.h.in to produce config.h. + +# Create a delimiter string that does not exist in confdefs.h, to ease +# handling of long lines. +ac_delim='%!_!# ' +for ac_last_try in false false :; do + ac_tt=`sed -n "/$ac_delim/p" confdefs.h` + if test -z "$ac_tt"; then + break + elif $ac_last_try; then + as_fn_error $? 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This is necessary, for example, + # in the case of _POSIX_SOURCE, which is predefined and required + # on some systems where configure will not decide to define it. + if (defundef == "undef") { + print "/*", prefix defundef, macro, "*/" + next + } + } +} +{ print } +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 +fi # test -n "$CONFIG_HEADERS" + + +eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS :C $CONFIG_COMMANDS" +shift +for ac_tag +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) as_fn_error $? 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We invoke sed twice because it is the + # simplest approach to changing $(DEPDIR) to its actual value in the + # expansion. + for file in `sed -n " + s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \ + sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do + # Make sure the directory exists. + test -f "$dirpart/$file" && continue + fdir=`$as_dirname -- "$file" || +$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$file" : 'X\(//\)[^/]' \| \ + X"$file" : 'X\(//\)$' \| \ + X"$file" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$file" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + as_dir=$dirpart/$fdir; as_fn_mkdir_p + # echo "creating $dirpart/$file" + echo '# dummy' > "$dirpart/$file" + done + done +} + ;; + "libtool":C) + + # See if we are running on zsh, and set the options which allow our + # commands through without removal of \ escapes. + if test -n "${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST + fi + + cfgfile="${ofile}T" + trap "$RM -f \"$cfgfile\"; exit 1" 1 2 15 + $RM -f "$cfgfile" + + cat <<_LT_EOF >> "$cfgfile" +#! $SHELL + +# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services. +# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION +# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`: +# NOTE: Changes made to this file will be lost: look at ltmain.sh. +# +# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, +# 2006, 2007, 2008, 2009, 2010, 2011 Free Software +# Foundation, Inc. +# Written by Gordon Matzigkeit, 1996 +# +# This file is part of GNU Libtool. +# +# GNU Libtool is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# As a special exception to the GNU General Public License, +# if you distribute this file as part of a program or library that +# is built using GNU Libtool, you may include this file under the +# same distribution terms that you use for the rest of that program. +# +# GNU Libtool is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Libtool; see the file COPYING. If not, a copy +# can be downloaded from http://www.gnu.org/licenses/gpl.html, or +# obtained by writing to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + + +# The names of the tagged configurations supported by this script. +available_tags="" + +# ### BEGIN LIBTOOL CONFIG + +# Whether or not to build static libraries. +build_old_libs=$enable_static + +# Whether or not to build shared libraries. +build_libtool_libs=$enable_shared + +# Which release of libtool.m4 was used? +macro_version=$macro_version +macro_revision=$macro_revision + +# What type of objects to build. +pic_mode=$pic_mode + +# Whether or not to optimize for fast installation. +fast_install=$enable_fast_install + +# Shell to use when invoking shell scripts. +SHELL=$lt_SHELL + +# An echo program that protects backslashes. +ECHO=$lt_ECHO + +# The PATH separator for the build system. +PATH_SEPARATOR=$lt_PATH_SEPARATOR + +# The host system. +host_alias=$host_alias +host=$host +host_os=$host_os + +# The build system. +build_alias=$build_alias +build=$build +build_os=$build_os + +# A sed program that does not truncate output. +SED=$lt_SED + +# Sed that helps us avoid accidentally triggering echo(1) options like -n. +Xsed="\$SED -e 1s/^X//" + +# A grep program that handles long lines. +GREP=$lt_GREP + +# An ERE matcher. +EGREP=$lt_EGREP + +# A literal string matcher. +FGREP=$lt_FGREP + +# A BSD- or MS-compatible name lister. +NM=$lt_NM + +# Whether we need soft or hard links. +LN_S=$lt_LN_S + +# What is the maximum length of a command? +max_cmd_len=$max_cmd_len + +# Object file suffix (normally "o"). +objext=$ac_objext + +# Executable file suffix (normally ""). +exeext=$exeext + +# whether the shell understands "unset". +lt_unset=$lt_unset + +# turn spaces into newlines. +SP2NL=$lt_lt_SP2NL + +# turn newlines into spaces. +NL2SP=$lt_lt_NL2SP + +# convert \$build file names to \$host format. +to_host_file_cmd=$lt_cv_to_host_file_cmd + +# convert \$build files to toolchain format. +to_tool_file_cmd=$lt_cv_to_tool_file_cmd + +# An object symbol dumper. +OBJDUMP=$lt_OBJDUMP + +# Method to check whether dependent libraries are shared objects. +deplibs_check_method=$lt_deplibs_check_method + +# Command to use when deplibs_check_method = "file_magic". +file_magic_cmd=$lt_file_magic_cmd + +# How to find potential files when deplibs_check_method = "file_magic". +file_magic_glob=$lt_file_magic_glob + +# Find potential files using nocaseglob when deplibs_check_method = "file_magic". +want_nocaseglob=$lt_want_nocaseglob + +# DLL creation program. +DLLTOOL=$lt_DLLTOOL + +# Command to associate shared and link libraries. +sharedlib_from_linklib_cmd=$lt_sharedlib_from_linklib_cmd + +# The archiver. +AR=$lt_AR + +# Flags to create an archive. +AR_FLAGS=$lt_AR_FLAGS + +# How to feed a file listing to the archiver. +archiver_list_spec=$lt_archiver_list_spec + +# A symbol stripping program. +STRIP=$lt_STRIP + +# Commands used to install an old-style archive. +RANLIB=$lt_RANLIB +old_postinstall_cmds=$lt_old_postinstall_cmds +old_postuninstall_cmds=$lt_old_postuninstall_cmds + +# Whether to use a lock for old archive extraction. +lock_old_archive_extraction=$lock_old_archive_extraction + +# A C compiler. +LTCC=$lt_CC + +# LTCC compiler flags. +LTCFLAGS=$lt_CFLAGS + +# Take the output of nm and produce a listing of raw symbols and C names. +global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe + +# Transform the output of nm in a proper C declaration. +global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl + +# Transform the output of nm in a C name address pair. +global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address + +# Transform the output of nm in a C name address pair when lib prefix is needed. +global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix + +# Specify filename containing input files for \$NM. +nm_file_list_spec=$lt_nm_file_list_spec + +# The root where to search for dependent libraries,and in which our libraries should be installed. +lt_sysroot=$lt_sysroot + +# The name of the directory that contains temporary libtool files. +objdir=$objdir + +# Used to examine libraries when file_magic_cmd begins with "file". +MAGIC_CMD=$MAGIC_CMD + +# Must we lock files when doing compilation? +need_locks=$lt_need_locks + +# Manifest tool. +MANIFEST_TOOL=$lt_MANIFEST_TOOL + +# Tool to manipulate archived DWARF debug symbol files on Mac OS X. +DSYMUTIL=$lt_DSYMUTIL + +# Tool to change global to local symbols on Mac OS X. +NMEDIT=$lt_NMEDIT + +# Tool to manipulate fat objects and archives on Mac OS X. +LIPO=$lt_LIPO + +# ldd/readelf like tool for Mach-O binaries on Mac OS X. +OTOOL=$lt_OTOOL + +# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4. +OTOOL64=$lt_OTOOL64 + +# Old archive suffix (normally "a"). +libext=$libext + +# Shared library suffix (normally ".so"). +shrext_cmds=$lt_shrext_cmds + +# The commands to extract the exported symbol list from a shared archive. +extract_expsyms_cmds=$lt_extract_expsyms_cmds + +# Variables whose values should be saved in libtool wrapper scripts and +# restored at link time. +variables_saved_for_relink=$lt_variables_saved_for_relink + +# Do we need the "lib" prefix for modules? +need_lib_prefix=$need_lib_prefix + +# Do we need a version for libraries? +need_version=$need_version + +# Library versioning type. +version_type=$version_type + +# Shared library runtime path variable. +runpath_var=$runpath_var + +# Shared library path variable. +shlibpath_var=$shlibpath_var + +# Is shlibpath searched before the hard-coded library search path? +shlibpath_overrides_runpath=$shlibpath_overrides_runpath + +# Format of library name prefix. +libname_spec=$lt_libname_spec + +# List of archive names. First name is the real one, the rest are links. +# The last name is the one that the linker finds with -lNAME +library_names_spec=$lt_library_names_spec + +# The coded name of the library, if different from the real name. +soname_spec=$lt_soname_spec + +# Permission mode override for installation of shared libraries. +install_override_mode=$lt_install_override_mode + +# Command to use after installation of a shared archive. +postinstall_cmds=$lt_postinstall_cmds + +# Command to use after uninstallation of a shared archive. +postuninstall_cmds=$lt_postuninstall_cmds + +# Commands used to finish a libtool library installation in a directory. +finish_cmds=$lt_finish_cmds + +# As "finish_cmds", except a single script fragment to be evaled but +# not shown. +finish_eval=$lt_finish_eval + +# Whether we should hardcode library paths into libraries. +hardcode_into_libs=$hardcode_into_libs + +# Compile-time system search path for libraries. +sys_lib_search_path_spec=$lt_sys_lib_search_path_spec + +# Run-time system search path for libraries. +sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec + +# Whether dlopen is supported. +dlopen_support=$enable_dlopen + +# Whether dlopen of programs is supported. +dlopen_self=$enable_dlopen_self + +# Whether dlopen of statically linked programs is supported. +dlopen_self_static=$enable_dlopen_self_static + +# Commands to strip libraries. +old_striplib=$lt_old_striplib +striplib=$lt_striplib + + +# The linker used to build libraries. +LD=$lt_LD + +# How to create reloadable object files. +reload_flag=$lt_reload_flag +reload_cmds=$lt_reload_cmds + +# Commands used to build an old-style archive. +old_archive_cmds=$lt_old_archive_cmds + +# A language specific compiler. +CC=$lt_compiler + +# Is the compiler the GNU compiler? +with_gcc=$GCC + +# Compiler flag to turn off builtin functions. +no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag + +# Additional compiler flags for building library objects. +pic_flag=$lt_lt_prog_compiler_pic + +# How to pass a linker flag through the compiler. +wl=$lt_lt_prog_compiler_wl + +# Compiler flag to prevent dynamic linking. +link_static_flag=$lt_lt_prog_compiler_static + +# Does compiler simultaneously support -c and -o options? +compiler_c_o=$lt_lt_cv_prog_compiler_c_o + +# Whether or not to add -lc for building shared libraries. +build_libtool_need_lc=$archive_cmds_need_lc + +# Whether or not to disallow shared libs when runtime libs are static. +allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes + +# Compiler flag to allow reflexive dlopens. +export_dynamic_flag_spec=$lt_export_dynamic_flag_spec + +# Compiler flag to generate shared objects directly from archives. +whole_archive_flag_spec=$lt_whole_archive_flag_spec + +# Whether the compiler copes with passing no objects directly. +compiler_needs_object=$lt_compiler_needs_object + +# Create an old-style archive from a shared archive. +old_archive_from_new_cmds=$lt_old_archive_from_new_cmds + +# Create a temporary old-style archive to link instead of a shared archive. +old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds + +# Commands used to build a shared archive. +archive_cmds=$lt_archive_cmds +archive_expsym_cmds=$lt_archive_expsym_cmds + +# Commands used to build a loadable module if different from building +# a shared archive. +module_cmds=$lt_module_cmds +module_expsym_cmds=$lt_module_expsym_cmds + +# Whether we are building with GNU ld or not. +with_gnu_ld=$lt_with_gnu_ld + +# Flag that allows shared libraries with undefined symbols to be built. +allow_undefined_flag=$lt_allow_undefined_flag + +# Flag that enforces no undefined symbols. +no_undefined_flag=$lt_no_undefined_flag + +# Flag to hardcode \$libdir into a binary during linking. +# This must work even if \$libdir does not exist +hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec + +# Whether we need a single "-rpath" flag with a separated argument. +hardcode_libdir_separator=$lt_hardcode_libdir_separator + +# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes +# DIR into the resulting binary. +hardcode_direct=$hardcode_direct + +# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes +# DIR into the resulting binary and the resulting library dependency is +# "absolute",i.e impossible to change by setting \${shlibpath_var} if the +# library is relocated. +hardcode_direct_absolute=$hardcode_direct_absolute + +# Set to "yes" if using the -LDIR flag during linking hardcodes DIR +# into the resulting binary. +hardcode_minus_L=$hardcode_minus_L + +# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR +# into the resulting binary. +hardcode_shlibpath_var=$hardcode_shlibpath_var + +# Set to "yes" if building a shared library automatically hardcodes DIR +# into the library and all subsequent libraries and executables linked +# against it. +hardcode_automatic=$hardcode_automatic + +# Set to yes if linker adds runtime paths of dependent libraries +# to runtime path list. +inherit_rpath=$inherit_rpath + +# Whether libtool must link a program against all its dependency libraries. +link_all_deplibs=$link_all_deplibs + +# Set to "yes" if exported symbols are required. +always_export_symbols=$always_export_symbols + +# The commands to list exported symbols. +export_symbols_cmds=$lt_export_symbols_cmds + +# Symbols that should not be listed in the preloaded symbols. +exclude_expsyms=$lt_exclude_expsyms + +# Symbols that must always be exported. +include_expsyms=$lt_include_expsyms + +# Commands necessary for linking programs (against libraries) with templates. +prelink_cmds=$lt_prelink_cmds + +# Commands necessary for finishing linking programs. +postlink_cmds=$lt_postlink_cmds + +# Specify filename containing input files. +file_list_spec=$lt_file_list_spec + +# How to hardcode a shared library path into an executable. +hardcode_action=$hardcode_action + +# ### END LIBTOOL CONFIG + +_LT_EOF + + case $host_os in + aix3*) + cat <<\_LT_EOF >> "$cfgfile" +# AIX sometimes has problems with the GCC collect2 program. For some +# reason, if we set the COLLECT_NAMES environment variable, the problems +# vanish in a puff of smoke. +if test "X${COLLECT_NAMES+set}" != Xset; then + COLLECT_NAMES= + export COLLECT_NAMES +fi +_LT_EOF + ;; + esac + + +ltmain="$ac_aux_dir/ltmain.sh" + + + # We use sed instead of cat because bash on DJGPP gets confused if + # if finds mixed CR/LF and LF-only lines. Since sed operates in + # text mode, it properly converts lines to CR/LF. This bash problem + # is reportedly fixed, but why not run on old versions too? + sed '$q' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + if test x"$xsi_shell" = xyes; then + sed -e '/^func_dirname ()$/,/^} # func_dirname /c\ +func_dirname ()\ +{\ +\ case ${1} in\ +\ */*) func_dirname_result="${1%/*}${2}" ;;\ +\ * ) func_dirname_result="${3}" ;;\ +\ esac\ +} # Extended-shell func_dirname implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_basename ()$/,/^} # func_basename /c\ +func_basename ()\ +{\ +\ func_basename_result="${1##*/}"\ +} # Extended-shell func_basename implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_dirname_and_basename ()$/,/^} # func_dirname_and_basename /c\ +func_dirname_and_basename ()\ +{\ +\ case ${1} in\ +\ */*) func_dirname_result="${1%/*}${2}" ;;\ +\ * ) func_dirname_result="${3}" ;;\ +\ esac\ +\ func_basename_result="${1##*/}"\ +} # Extended-shell func_dirname_and_basename implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_stripname ()$/,/^} # func_stripname /c\ +func_stripname ()\ +{\ +\ # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are\ +\ # positional parameters, so assign one to ordinary parameter first.\ +\ func_stripname_result=${3}\ +\ func_stripname_result=${func_stripname_result#"${1}"}\ +\ func_stripname_result=${func_stripname_result%"${2}"}\ +} # Extended-shell func_stripname implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_split_long_opt ()$/,/^} # func_split_long_opt /c\ +func_split_long_opt ()\ +{\ +\ func_split_long_opt_name=${1%%=*}\ +\ func_split_long_opt_arg=${1#*=}\ +} # Extended-shell func_split_long_opt implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_split_short_opt ()$/,/^} # func_split_short_opt /c\ +func_split_short_opt ()\ +{\ +\ func_split_short_opt_arg=${1#??}\ +\ func_split_short_opt_name=${1%"$func_split_short_opt_arg"}\ +} # Extended-shell func_split_short_opt implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_lo2o ()$/,/^} # func_lo2o /c\ +func_lo2o ()\ +{\ +\ case ${1} in\ +\ *.lo) func_lo2o_result=${1%.lo}.${objext} ;;\ +\ *) func_lo2o_result=${1} ;;\ +\ esac\ +} # Extended-shell func_lo2o implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_xform ()$/,/^} # func_xform /c\ +func_xform ()\ +{\ + func_xform_result=${1%.*}.lo\ +} # Extended-shell func_xform implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_arith ()$/,/^} # func_arith /c\ +func_arith ()\ +{\ + func_arith_result=$(( $* ))\ +} # Extended-shell func_arith implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_len ()$/,/^} # func_len /c\ +func_len ()\ +{\ + func_len_result=${#1}\ +} # Extended-shell func_len implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + +fi + +if test x"$lt_shell_append" = xyes; then + sed -e '/^func_append ()$/,/^} # func_append /c\ +func_append ()\ +{\ + eval "${1}+=\\${2}"\ +} # Extended-shell func_append implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + sed -e '/^func_append_quoted ()$/,/^} # func_append_quoted /c\ +func_append_quoted ()\ +{\ +\ func_quote_for_eval "${2}"\ +\ eval "${1}+=\\\\ \\$func_quote_for_eval_result"\ +} # Extended-shell func_append_quoted implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: + + + # Save a `func_append' function call where possible by direct use of '+=' + sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") + test 0 -eq $? || _lt_function_replace_fail=: +else + # Save a `func_append' function call even when '+=' is not available + sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") + test 0 -eq $? || _lt_function_replace_fail=: +fi + +if test x"$_lt_function_replace_fail" = x":"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Unable to substitute extended shell functions in $ofile" >&5 +$as_echo "$as_me: WARNING: Unable to substitute extended shell functions in $ofile" >&2;} +fi + + + mv -f "$cfgfile" "$ofile" || + (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile") + chmod +x "$ofile" + + ;; + + esac +done # for ac_tag + + +as_fn_exit 0 +_ACEOF +ac_clean_files=$ac_clean_files_save + +test $ac_write_fail = 0 || + as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || as_fn_exit 1 +fi + +# +# CONFIG_SUBDIRS section. +# +if test "$no_recursion" != yes; then + + # Remove --cache-file, --srcdir, and --disable-option-checking arguments + # so they do not pile up. + ac_sub_configure_args= + ac_prev= + eval "set x $ac_configure_args" + shift + for ac_arg + do + if test -n "$ac_prev"; then + ac_prev= + continue + fi + case $ac_arg in + -cache-file | --cache-file | --cache-fil | --cache-fi \ + | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c) + ac_prev=cache_file ;; + -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \ + | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \ + | --c=*) + ;; + --config-cache | -C) + ;; + -srcdir | --srcdir | --srcdi | --srcd | --src | --sr) + ac_prev=srcdir ;; + -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*) + ;; + -prefix | --prefix | --prefi | --pref | --pre | --pr | --p) + ac_prev=prefix ;; + -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*) + ;; + --disable-option-checking) + ;; + *) + case $ac_arg in + *\'*) ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + as_fn_append ac_sub_configure_args " '$ac_arg'" ;; + esac + done + + # Always prepend --prefix to ensure using the same prefix + # in subdir configurations. + ac_arg="--prefix=$prefix" + case $ac_arg in + *\'*) ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + ac_sub_configure_args="'$ac_arg' $ac_sub_configure_args" + + # Pass --silent + if test "$silent" = yes; then + ac_sub_configure_args="--silent $ac_sub_configure_args" + fi + + # Always prepend --disable-option-checking to silence warnings, since + # different subdirs can have different --enable and --with options. + ac_sub_configure_args="--disable-option-checking $ac_sub_configure_args" + + ac_popdir=`pwd` + for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue + + # Do not complain, so a configure script can configure whichever + # parts of a large source tree are present. + test -d "$srcdir/$ac_dir" || continue + + ac_msg="=== configuring in $ac_dir (`pwd`/$ac_dir)" + $as_echo "$as_me:${as_lineno-$LINENO}: $ac_msg" >&5 + $as_echo "$ac_msg" >&6 + as_dir="$ac_dir"; as_fn_mkdir_p + ac_builddir=. + +case "$ac_dir" in +.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;; +*) + ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'` + # A ".." for each directory in $ac_dir_suffix. + ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'` + case $ac_top_builddir_sub in + "") ac_top_builddir_sub=. ac_top_build_prefix= ;; + *) ac_top_build_prefix=$ac_top_builddir_sub/ ;; + esac ;; +esac +ac_abs_top_builddir=$ac_pwd +ac_abs_builddir=$ac_pwd$ac_dir_suffix +# for backward compatibility: +ac_top_builddir=$ac_top_build_prefix + +case $srcdir in + .) # We are building in place. + ac_srcdir=. + ac_top_srcdir=$ac_top_builddir_sub + ac_abs_top_srcdir=$ac_pwd ;; + [\\/]* | ?:[\\/]* ) # Absolute name. + ac_srcdir=$srcdir$ac_dir_suffix; + ac_top_srcdir=$srcdir + ac_abs_top_srcdir=$srcdir ;; + *) # Relative name. + ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix + ac_top_srcdir=$ac_top_build_prefix$srcdir + ac_abs_top_srcdir=$ac_pwd/$srcdir ;; +esac +ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix + + + cd "$ac_dir" + + # Check for guested configure; otherwise get Cygnus style configure. + if test -f "$ac_srcdir/configure.gnu"; then + ac_sub_configure=$ac_srcdir/configure.gnu + elif test -f "$ac_srcdir/configure"; then + ac_sub_configure=$ac_srcdir/configure + elif test -f "$ac_srcdir/configure.in"; then + # This should be Cygnus configure. + ac_sub_configure=$ac_aux_dir/configure + else + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: no configuration information is in $ac_dir" >&5 +$as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2;} + ac_sub_configure= + fi + + # The recursion is here. + if test -n "$ac_sub_configure"; then + # Make the cache file name correct relative to the subdirectory. + case $cache_file in + [\\/]* | ?:[\\/]* ) ac_sub_cache_file=$cache_file ;; + *) # Relative name. + ac_sub_cache_file=$ac_top_build_prefix$cache_file ;; + esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&5 +$as_echo "$as_me: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&6;} + # The eval makes quoting arguments work. + eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \ + --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" || + as_fn_error $? "$ac_sub_configure failed for $ac_dir" "$LINENO" 5 + fi + + cd "$ac_popdir" + done +fi +if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 +$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} +fi + diff --git a/shadowsocksr-libev/src/configure.ac b/shadowsocksr-libev/src/configure.ac new file mode 100644 index 000000000..6586f2b3e --- /dev/null +++ b/shadowsocksr-libev/src/configure.ac @@ -0,0 +1,330 @@ +dnl -*- Autoconf -*- +dnl Process this file with autoconf to produce a configure script. + +AC_PREREQ([2.67]) +AC_INIT([shadowsocks-libev], [2.5.6], [max.c.lv@gmail.com]) +AC_CONFIG_SRCDIR([src/encrypt.c]) +AC_CONFIG_HEADERS([config.h]) +AC_CONFIG_AUX_DIR(auto) +AC_CONFIG_MACRO_DIR([m4]) +AC_USE_SYSTEM_EXTENSIONS + +AM_INIT_AUTOMAKE([subdir-objects foreign -Wno-gnu -Werror]) +m4_ifdef([AM_PROG_AR], [AM_PROG_AR]) +m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) +AM_MAINTAINER_MODE +AM_DEP_TRACK + +dnl Checks for lib +AC_DISABLE_STATIC +AC_DISABLE_SHARED +LT_INIT([dlopen]) + +dnl Check for pcre library +TS_CHECK_PCRE +if test "x${enable_pcre}" != "xyes"; then + AC_MSG_ERROR([Cannot find pcre library. Configure --with-pcre=DIR]) +fi + +dnl Checks for using shared libraries from system +AC_ARG_ENABLE( + [system-shared-lib], + AS_HELP_STRING([--enable-system-shared-lib], [build against shared libraries when possible]), + [ + case "${enableval}" in + yes) enable_system_shared_lib=true ;; + no) enable_system_shared_lib=false ;; + *) AC_MSG_ERROR([bad value ${enableval} for --enable-system-shared-lib]) ;; + esac], [enable_system_shared_lib=false]) +AM_CONDITIONAL([USE_SYSTEM_SHARED_LIB], [test x$enable_system_shared_lib = xtrue]) + +dnl Checks for crypto library +AC_ARG_WITH( + [crypto-library], + [AS_HELP_STRING([--with-crypto-library=library], [build with the given crypto library, TYPE=openssl|polarssl|mbedtls @<:@default=openssl@:>@])], + [ + case "${withval}" in + openssl|polarssl|mbedtls) ;; + *) AC_MSG_ERROR([bad value ${withval} for --with-crypto-library]) ;; + esac + ], + [with_crypto_library="openssl"] +) + +AC_ARG_ENABLE([documentation], + AS_HELP_STRING([--disable-documentation], [do not build documentation]), + [disable_documentation=true], + [disable_documentation=false]) +AM_CONDITIONAL([ENABLE_DOCUMENTATION], [test x$disable_documentation = xfalse]) + +AM_COND_IF([ENABLE_DOCUMENTATION], [ + AC_PATH_PROG([ASCIIDOC], [asciidoc]) + test x"${ASCIIDOC}" != x || AC_MSG_ERROR([Cannot find `asciidoc` in PATH.]) + AC_PATH_PROG([XMLTO], [xmlto]) + test x"$XMLTO" != x || AC_MSG_ERROR([Cannot find `xmlto` in PATH.]) + AC_PATH_PROG([GZIP], [gzip], [gzip]) + AC_PATH_PROG([MV], [mv], [mv]) + AC_PROG_SED +]) + +dnl Checks for programs. +AC_PROG_CC +AM_PROG_CC_C_O +AC_PROG_INSTALL +AC_PROG_LN_S +AC_PROG_LIBTOOL +AC_PROG_MAKE_SET +AC_LANG_SOURCE + +dnl Checks for libev +AM_COND_IF([USE_SYSTEM_SHARED_LIB], + [], + [m4_include([libev/libev.m4])]) + +dnl Add library for mingw +case $host in + *-mingw*) + LIBS="$LIBS -ladvapi32 -lgdi32 -lws2_32 -lcrypt32" + ;; + *) + ;; +esac + +dnl Checks for TLS +AX_TLS([:], [:]) + +dnl Checks for crypto library +case "${with_crypto_library}" in + openssl) + ss_ZLIB + ss_OPENSSL + AC_DEFINE([USE_CRYPTO_OPENSSL], [1], [Use OpenSSL library]) + ;; + polarssl) + ss_POLARSSL + AC_DEFINE([USE_CRYPTO_POLARSSL], [1], [Use PolarSSL library]) + ;; + mbedtls) + ss_MBEDTLS + AC_DEFINE([USE_CRYPTO_MBEDTLS], [1], [Use mbed TLS library]) + ;; +esac + +dnl Checks for Apple CommonCrypto API +AC_ARG_ENABLE(applecc, + AS_HELP_STRING([--enable-applecc], [enable Apple CommonCrypto API support]), + [ + AC_CHECK_HEADERS(CommonCrypto/CommonCrypto.h, + [], + [AC_MSG_ERROR([CommonCrypto header files not found.]); break] + ) + AC_CHECK_FUNCS([CCCryptorCreateWithMode], , + [AC_MSG_ERROR([CommonCrypto API needs OS X (>= 10.7) and iOS (>= 5.0).]); break] + ) + AC_DEFINE([USE_CRYPTO_APPLECC], [1], [Use Apple CommonCrypto library]) + ] +) + +dnl Checks for inet_ntop +ss_FUNC_INET_NTOP + +dnl Checks for host. +AC_MSG_CHECKING(for what kind of host) +case $host in + *-linux*) + os_support=linux + AC_MSG_RESULT(Linux) + ;; + *-mingw*) + dnl Add custom macros for libev + AC_DEFINE([FD_SETSIZE], [2048], [Reset max file descriptor size.]) + AC_DEFINE([EV_FD_TO_WIN32_HANDLE(fd)], [(fd)], [Override libev default fd conversion macro.]) + AC_DEFINE([EV_WIN32_HANDLE_TO_FD(handle)], [(handle)], [Override libev default handle conversion macro.]) + AC_DEFINE([EV_WIN32_CLOSE_FD(fd)], [closesocket(fd)], [Override libev default fd close macro.]) + + os_support=mingw + AC_MSG_RESULT(MinGW) + ;; + *) + AC_MSG_RESULT(transparent proxy does not support for $host) + ;; +esac + +dnl Checks for pthread +AX_PTHREAD([LIBS="$PTHREAD_LIBS $LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + CC="$PTHREAD_CC"], AC_MSG_ERROR(Can not find pthreads. This is required.)) + +dnl Checks for stack protector +GGL_CHECK_STACK_PROTECTOR([has_stack_protector=yes], [has_stack_protector=no]) +# XXX - disable -fstack-protector due to missing libssp_nonshared +case "$host_os" in + *aix*) + AC_MSG_NOTICE([-fstack-protector disabled on AIX]) + has_stack_protector=no + ;; + *sunos*) + AC_MSG_NOTICE([-fstack-protector disabled on SunOS]) + has_stack_protector=no + ;; + *solaris*) + AC_MSG_NOTICE([-fstack-protector disabled on Solaris]) + has_stack_protector=no + ;; +esac + +AC_ARG_ENABLE(ssp, +[AS_HELP_STRING(--disable-ssp,Do not compile with -fstack-protector)], +[ + enable_ssp="no" +], +[ + enable_ssp="yes" +]) + +if test x$has_stack_protector = xyes && test x$enable_ssp = xyes; then + CFLAGS="$CFLAGS -fstack-protector" + AC_MSG_NOTICE([-fstack-protector enabled in CFLAGS]) +fi + +AM_CONDITIONAL(BUILD_REDIRECTOR, test "$os_support" = "linux") +AM_CONDITIONAL(BUILD_WINCOMPAT, test "$os_support" = "mingw") + +dnl Checks for header files. +AC_CHECK_HEADERS([limits.h stdint.h inttypes.h arpa/inet.h fcntl.h langinfo.h locale.h netdb.h netinet/in.h stdlib.h string.h strings.h unistd.h sys/ioctl.h]) + +dnl A special check required for on Darwin. See +dnl http://www.gnu.org/software/autoconf/manual/html_node/Header-Portability.html. +AC_CHECK_HEADERS([sys/socket.h]) +AC_CHECK_HEADERS([net/if.h], [], [], +[ +#include +#ifdef STDC_HEADERS +# include +# include +#else +# ifdef HAVE_STDLIB_H +# include +# endif +#endif +#ifdef HAVE_SYS_SOCKET_H +# include +#endif +]) + +case $host in + *-mingw*) + AC_DEFINE([CONNECT_IN_PROGRESS], [WSAEWOULDBLOCK], [errno for incomplete non-blocking connect(2)]) + AC_CHECK_HEADERS([windows.h winsock2.h ws2tcpip.h], [], [AC_MSG_ERROR([Missing MinGW headers])], []) + ;; + *-linux*) + AC_DEFINE([CONNECT_IN_PROGRESS], [EINPROGRESS], [errno for incomplete non-blocking connect(2)]) + dnl Checks for netfilter headers + AC_CHECK_HEADERS([linux/if.h linux/netfilter_ipv4.h linux/netfilter_ipv6/ip6_tables.h], + [], [AC_MSG_ERROR([Missing netfilter headers])], + [[ + #if HAVE_LIMITS_H + #include + #endif + /* Netfilter ip(6)tables v1.4.0 has broken headers */ + #if HAVE_NETINET_IN_H + #include + #endif + #if HAVE_LINUX_IF_H + #include + #endif + #if HAVE_SYS_SOCKET_H + #include + #endif + ]]) + ;; + *) + # These are POSIX-like systems using BSD-like sockets API. + AC_DEFINE([CONNECT_IN_PROGRESS], [EINPROGRESS], [errno for incomplete non-blocking connect(2)]) + ;; +esac + +AC_C_BIGENDIAN + +dnl Checks for typedefs, structures, and compiler characteristics. +AC_C_INLINE +AC_TYPE_SSIZE_T + +dnl Checks for header files. +AC_HEADER_ASSERT +AC_HEADER_STDC +AC_HEADER_SYS_WAIT + +dnl Checks for typedefs, structures, and compiler characteristics. +AC_C_CONST +AC_TYPE_PID_T +AC_TYPE_SIZE_T +AC_TYPE_SSIZE_T +AC_TYPE_UINT16_T +AC_TYPE_UINT8_T +AC_HEADER_TIME + +dnl Checks for library functions. +AC_FUNC_FORK +AC_FUNC_SELECT_ARGTYPES +AC_TYPE_SIGNAL +AC_CHECK_FUNCS([memset select setresuid setreuid strerror getpwnam_r setrlimit]) + +dnl Check for select() into ws2_32 for Msys/Mingw +if test "$ac_cv_func_select" != "yes"; then + AC_MSG_CHECKING([for select in ws2_32]) + AC_TRY_LINK([ +#ifdef HAVE_WINSOCK2_H +#ifndef WIN32_LEAN_AND_MEAN +#define WIN32_LEAN_AND_MEAN +#endif +#include +#endif + ],[ + select(0,(fd_set *)NULL,(fd_set *)NULL,(fd_set *)NULL,(struct timeval *)NULL); + ],[ + AC_MSG_RESULT([yes]) + HAVE_SELECT="1" + AC_DEFINE_UNQUOTED(HAVE_SELECT, 1, + [Define to 1 if you have the 'select' function.]) + HAVE_SYS_SELECT_H="1" + AC_DEFINE_UNQUOTED(HAVE_SYS_SELECT_H, 1, + [Define to 1 if you have the header file.]) + ],[ + AC_MSG_ERROR([no]) + ]) +fi + +AC_CHECK_LIB(socket, connect) + +dnl Checks for library functions. +AC_CHECK_FUNCS([malloc memset socket]) + +dnl Add define for libudns to enable IPv6 support +dnl This is an option defined in the origin configure script +AC_DEFINE([HAVE_IPv6], [1], [Enable IPv6 support in libudns]) + +AM_COND_IF([USE_SYSTEM_SHARED_LIB],[ + AC_CHECK_LIB([sodium], [sodium_init], ,[ + AC_MSG_ERROR([Couldn't find libsodium. Try installing libsodium-dev@<:@el@:>@.]) + ]) + ], + [AC_CONFIG_SUBDIRS([libsodium])]) + +AC_CONFIG_FILES([ shadowsocks-libev.pc + Makefile + libcork/Makefile + libipset/Makefile + src/Makefile]) +AM_COND_IF([USE_SYSTEM_SHARED_LIB],[ + AC_CHECK_LIB([udns], [dns_dnlen], ,[AC_MSG_ERROR([Couldn't find libudns. Try installing libudns-dev or udns-devel.])]) + AC_CHECK_LIB([ev], [ev_loop_destroy], ,[AC_MSG_ERROR([Couldn't find libev. Try installing libev-dev@<:@el@:>@.])]) + ], + [AC_CONFIG_FILES([libudns/Makefile + libev/Makefile])]) + +AM_COND_IF([ENABLE_DOCUMENTATION], + [AC_CONFIG_FILES([doc/Makefile]) +]) + +AC_OUTPUT diff --git a/shadowsocksr-libev/src/debian/.gitignore b/shadowsocksr-libev/src/debian/.gitignore new file mode 100644 index 000000000..4bd3419f8 --- /dev/null +++ b/shadowsocksr-libev/src/debian/.gitignore @@ -0,0 +1,5 @@ +*.substvars +debhelper-build-stamp +libshadowsocks-libev*/ +libshadowsocks-libev-dev/ +tmp/ diff --git a/shadowsocksr-libev/src/debian/README.Debian b/shadowsocksr-libev/src/debian/README.Debian new file mode 100644 index 000000000..75f51844a --- /dev/null +++ b/shadowsocksr-libev/src/debian/README.Debian @@ -0,0 +1,17 @@ +shadowsocks-libev for Debian +---------------------- + +The Debian package has added systemd support. A default server service which +reads the default configuration in /etc/default/shadowsocks-libev is installed +and enabled by default, plus some other service templates placed in +/lib/systemd/system, which can be used by users later. + +Another problem is that shadowsocks-libev is licensed under GPLv3+. This will +conflict with OpenSSL License when linked against OpenSSL library. As a +result, this package faces licensing problem. Use it at your own risk. + + -- Boyuan Yang <073plan@gmail.com> Wed, 14 Oct 2015 09:18:50 +0800 + +(No special notes.) + + -- Max Lv Sat, 06 Apr 2013 16:59:15 +0800 diff --git a/shadowsocksr-libev/src/debian/changelog b/shadowsocksr-libev/src/debian/changelog new file mode 100644 index 000000000..7a4e44891 --- /dev/null +++ b/shadowsocksr-libev/src/debian/changelog @@ -0,0 +1,399 @@ +shadowsocks-libev (2.5.6-1) unstable; urgency=medium + + * Add outbound ACL for server. + * Refine log format. + + -- Max Lv Tue, 01 Nov 2016 09:51:52 +0800 + +shadowsocks-libev (2.5.5-1) unstable; urgency=medium + + * Refine attack detection. + + -- Max Lv Tue, 11 Oct 2016 15:45:09 +0800 + +shadowsocks-libev (2.5.4-1) unstable; urgency=medium + + * Fix a bug of auto blocking mechanism. + + -- Max Lv Sun, 09 Oct 2016 19:36:37 +0800 + +shadowsocks-libev (2.5.3-1) unstable; urgency=medium + + * Fix TCP Fast Open on macOS. + + -- Max Lv Wed, 21 Sep 2016 19:31:57 +0800 + +shadowsocks-libev (2.5.2-1) unstable; urgency=medium + + * Fix a bug of UDP relay mode of ss-local. + + -- Max Lv Mon, 12 Sep 2016 12:54:33 +0800 + +shadowsocks-libev (2.5.1-1) unstable; urgency=medium + + * Refine ACL feature with hostname support. + * Add HTTP/SNI parser for ss-local/ss-redir. + + -- Max Lv Sat, 10 Sep 2016 17:06:49 +0800 + +shadowsocks-libev (2.5.0-1) unstable; urgency=medium + + * Fix several bugs of the command line interface. + * Add aes-128/192/256-ctr ciphers. + * Add option MTU for UDP relay. + * Add MultiPath TCP support. + + -- Max Lv Mon, 29 Aug 2016 13:07:51 +0800 + +shadowsocks-libev (2.4.8-1) unstable; urgency=low + + * Update manual pages with asciidoc. + * Fix issues of bind_address option. + + -- Max Lv Wed, 20 Jul 2016 09:25:50 +0800 + +shadowsocks-libev (2.4.7-1) unstable; urgency=low + + * Add ss-nat, a helper script to set up NAT rules for ss-redir. + * Fix several issues for debian package. + + -- Max Lv Wed, 1 Jun 2016 18:21:45 +0800 + +shadowsocks-libev (2.4.6-1) unstable; urgency=low + + * Update manual pages. + + -- Max Lv Thu, 21 Apr 2016 17:33:34 +0800 + +shadowsocks-libev (2.4.5-1) unstable; urgency=low + + * Fix build issues on OpenWRT. + * Reduce the latency of redir mode. + + -- Max Lv Mon, 01 Feb 2016 13:22:50 +0800 + +shadowsocks-libev (2.4.4-1) unstable; urgency=low + + * Fix a potential memory leak. + * Fix some compiler related issues. + + -- Max Lv Wed, 13 Jan 2016 11:50:12 +0800 + +shadowsocks-libev (2.4.3-1) unstable; urgency=high + + * Refine the buffer allocation. + + -- Max Lv Sat, 19 Dec 2015 12:30:21 +0900 + +shadowsocks-libev (2.4.1-1) unstable; urgency=high + + * Fix a security bug. + + -- Max Lv Thu, 29 Oct 2015 15:42:47 +0900 + +shadowsocks-libev (2.4.0-1) unstable; urgency=low + + * Update the one-time authentication + + -- Max Lv Thu, 24 Sep 2015 14:11:05 +0900 + +shadowsocks-libev (2.3.3-1) unstable; urgency=low + + * Refine the onetime authentication of header. + * Enforce CRC16 on the payload. + + -- Max Lv Fri, 18 Sep 2015 10:38:21 +0900 + +shadowsocks-libev (2.3.2-1) unstable; urgency=low + + * Fix minor issues of build scripts. + + -- Max Lv Sun, 13 Sep 2015 15:22:28 +0900 + +shadowsocks-libev (2.3.1-1) unstable; urgency=low + + * Fix an issue of connection cache of UDP relay. + * Add support of onetime authentication for header verification. + + -- Max Lv Fri, 04 Sep 2015 07:54:02 +0900 + +shadowsocks-libev (2.3.0-1) unstable; urgency=low + + * Add manager mode to support multi-user and traffic stat. + * Fix a build issue on OS X El Capitan. + + -- Max Lv Thu, 30 Jul 2015 17:30:43 +0900 + +shadowsocks-libev (2.2.3-1) unstable; urgency=high + + * Fix the multiple UDP source port issue. + * Allow working in UDP only mode. + + -- Max Lv Sat, 11 Jul 2015 08:31:02 +0900 + +shadowsocks-libev (2.2.2-1) unstable; urgency=low + + * Fix the timer of UDP relay. + * Check name_len in the header. + + -- Max Lv Mon, 15 Jun 2015 10:26:40 +0900 + +shadowsocks-libev (2.2.1-1) unstable; urgency=low + + * Fix an issue of UDP relay. + + -- Max Lv Sun, 10 May 2015 21:23:44 +0900 + +shadowsocks-libev (2.2.0-1) unstable; urgency=low + + * Add TPROXY support in redir mode. + + -- Max Lv Mon, 04 May 2015 02:44:17 -0300 + +shadowsocks-libev (2.1.4-1) unstable; urgency=low + + * Fix a bug of server mode ACL. + + -- Max Lv Sun, 08 Feb 2015 20:24:43 +0900 + +shadowsocks-libev (2.1.3-1) unstable; urgency=low + + * Add ACL support to remote server. + + -- Max Lv Sun, 08 Feb 2015 10:59:44 +0900 + +shadowsocks-libev (2.1.2-1) unstable; urgency=low + + * Refine multiple port binding. + + -- Max Lv Sat, 31 Jan 2015 18:56:25 +0900 + +shadowsocks-libev (2.1.1-1) unstable; urgency=low + + * Fix a memory leak. + + -- Max Lv Wed, 21 Jan 2015 21:40:58 +0900 + +shadowsocks-libev (2.1.0-1) unstable; urgency=low + + * Fix a bug of tunnel mode. + + -- Max Lv Mon, 19 Jan 2015 09:59:52 +0900 + +shadowsocks-libev (2.0.8-1) unstable; urgency=low + + * Fix a bug of IPv6. + + -- Max Lv Fri, 16 Jan 2015 10:58:12 +0900 + +shadowsocks-libev (2.0.7-1) unstable; urgency=low + + * Fix some performance issue. + + -- Max Lv Tue, 13 Jan 2015 13:17:58 +0900 + +shadowsocks-libev (2.0.6-1) unstable; urgency=high + + * Fix a critical issue in redir mode. + + -- Max Lv Mon, 12 Jan 2015 21:51:19 +0900 + +shadowsocks-libev (2.0.5-1) unstable; urgency=low + + * Refine local, tunnel, and redir modes. + + -- Max Lv Mon, 12 Jan 2015 12:39:05 +0800 + +shadowsocks-libev (2.0.4-1) unstable; urgency=low + + * Fix building issues with MinGW32. + + -- Max Lv Sun, 11 Jan 2015 13:33:31 +0900 + +shadowsocks-libev (2.0.3-1) unstable; urgency=high + + * Fix some issues. + + -- Max Lv Sat, 10 Jan 2015 16:27:54 +0800 + +shadowsocks-libev (2.0.2-1) unstable; urgency=low + + * Fix issues with MinGW. + + -- Max Lv Sat, 10 Jan 2015 15:17:10 +0800 + +shadowsocks-libev (2.0.1-1) unstable; urgency=low + + * Implement a real asynchronous DNS resolver. + + -- Max Lv Sat, 10 Jan 2015 10:04:28 +0800 + +shadowsocks-libev (1.6.4-1) unstable; urgency=low + + * Update documents. + + -- Max Lv Wed, 07 Jan 2015 21:48:58 +0900 + +shadowsocks-libev (1.6.3-1) unstable; urgency=low + + * Refine ss-redir. + + -- Max Lv Sun, 04 Jan 2015 19:23:52 +0900 + +shadowsocks-libev (1.6.2-1) unstable; urgency=low + + * Fix some build issues. + + -- Max Lv Tue, 30 Dec 2014 10:30:28 +0800 + +shadowsocks-libev (1.6.1-1) unstable; urgency=high + + * Add salsa20 and chacha20 support. + + -- Max Lv Sat, 13 Dec 2014 15:11:34 +0800 + +shadowsocks-libev (1.6.0-1) unstable; urgency=low + + * Solve conflicts with other shadowsocks portings. + + -- Max Lv Mon, 17 Nov 2014 14:10:21 +0800 + +shadowsocks-libev (1.5.3-2) unstable; urgency=low + + * rename as shadowsocks-libev. + + -- Symeon Huang Sat, 15 Nov 2014 14:55:28 +0000 + +shadowsocks (1.5.3-1) unstable; urgency=low + + * Fix log on Win32. + + -- Max Lv Fri, 14 Nov 2014 09:10:06 +0800 + +shadowsocks (1.5.2-1) unstable; urgency=low + + * Handle SIGTERM and SIGKILL nicely. + + -- Max Lv Tue, 12 Nov 2014 13:11:29 +0800 + +shadowsocks (1.5.1-1) unstable; urgency=low + + * Fix a bug of tcp fast open. + + -- Max Lv Sat, 08 Nov 2014 19:45:37 +0900 + +shadowsocks (1.5.0-1) unstable; urgency=low + + * Support to build static or shared library. + * Supprot IPv6 NAT in redirect mode. + * Refine the cache size of UDPRelay. + + -- Max Lv Fri, 07 Nov 2014 09:33:19 +0800 + +shadowsocks (1.4.8-1) unstable; urgency=low + + * Fix a bug of tcp fast open. + + -- Max Lv Wed, 08 Oct 2014 18:02:02 +0800 + +shadowsocks (1.4.7-1) unstable; urgency=low + + * Add a new encryptor rc4-md5. + + -- Max Lv Tue, 09 Sep 2014 07:50:10 +0800 + +shadowsocks (1.4.6-1) unstable; urgency=low + + * Add ACL support. + + -- Max Lv Sat, 03 May 2014 04:37:10 -0400 + +shadowsocks (1.4.5-1) unstable; urgency=high + + * Fix the compatibility issue of udprelay. + * Enhance asyncns to reduce the latency. + * Add TCP_FASTOPEN support. + + -- Max Lv Sun, 20 Apr 2014 08:12:45 +0800 + +shadowsocks (1.4.4-1) unstable; urgency=low + + * Add CommonCrypto support for darwin. + * Fix some config related issues. + + -- Max Lv Wed, 26 Mar 2014 13:29:03 +0800 + +shadowsocks (1.4.3-1) unstable; urgency=low + + * Add tunnel mode with local port forwarding feature. + + -- Max Lv Fri, 21 Feb 2014 11:52:13 +0900 + +shadowsocks (1.4.2-1) unstable; urgency=high + + * Fix the UDP relay issues. + * Add syslog support. + + -- Max Lv Sun, 05 Jan 2014 10:05:29 +0900 + +shadowsocks (1.4.1-1) unstable; urgency=low + + * Add multi-port support. + * Add PolarSSL support by @linusyang. + + -- Max Lv Tue, 12 Nov 2013 03:57:21 +0000 + +shadowsocks (1.4.0-1) unstable; urgency=low + + * Add standard socks5 udp support. + + -- Max Lv Sun, 08 Sep 2013 02:20:40 +0000 + +shadowsocks (1.3.3-1) unstable; urgency=high + + * Provide more info in verbose mode. + + -- Max Lv Fri, 21 Jun 2013 09:59:20 +0800 + +shadowsocks (1.3.2-1) unstable; urgency=high + + * Fix some ciphers by @linusyang. + + -- Max Lv Sun, 09 Jun 2013 09:52:31 +0000 + +shadowsocks (1.3.1-1) unstable; urgency=low + + * Support more cihpers: camellia, idea, rc2 and seed. + + -- Max Lv Tue, 04 Jun 2013 00:56:17 +0000 + +shadowsocks (1.3-1) unstable; urgency=low + + * Able to bind connections to specific interface. + * Support more ciphers: aes-128-cfb, aes-192-cfb, aes-256-cfb, bf-cfb, cast5-cfb, des-cfb. + + -- Max Lv Thu, 16 May 2013 10:51:15 +0800 + +shadowsocks (1.2-2) unstable; urgency=low + + * Close timeouted TCP connections. + + -- Max Lv Tue, 07 May 2013 14:10:33 +0800 + +shadowsocks (1.2-1) unstable; urgency=low + + * Fix a high load issue. + + -- Max Lv Thu, 18 Apr 2013 10:52:34 +0800 + +shadowsocks (1.1-1) unstable; urgency=low + + * Fix a IPV6 resolve issue. + + -- Max Lv Wed, 10 Apr 2013 12:11:36 +0800 + +shadowsocks (1.0-2) unstable; urgency=low + + * Initial release. + + -- Max Lv Sat, 06 Apr 2013 16:59:15 +0800 diff --git a/shadowsocksr-libev/src/debian/compat b/shadowsocksr-libev/src/debian/compat new file mode 100644 index 000000000..ec635144f --- /dev/null +++ b/shadowsocksr-libev/src/debian/compat @@ -0,0 +1 @@ +9 diff --git a/shadowsocksr-libev/src/debian/config.json b/shadowsocksr-libev/src/debian/config.json new file mode 100644 index 000000000..aba1bf285 --- /dev/null +++ b/shadowsocksr-libev/src/debian/config.json @@ -0,0 +1,8 @@ +{ + "server":"127.0.0.1", + "server_port":8388, + "local_port":1080, + "password":"barfoo!", + "timeout":60, + "method":null +} diff --git a/shadowsocksr-libev/src/debian/control b/shadowsocksr-libev/src/debian/control new file mode 100644 index 000000000..a47e6d283 --- /dev/null +++ b/shadowsocksr-libev/src/debian/control @@ -0,0 +1,78 @@ +Source: shadowsocks-libev +Section: net +Priority: extra +Maintainer: Max Lv +Build-Depends: + asciidoc, + autotools-dev, + debhelper (>= 9), + dh-systemd (>= 1.5), + gawk, + libpcre3-dev, + libssl-dev (>= 0.9.8), + mime-support, + pkg-config, + xmlto, +Standards-Version: 3.9.8 +Homepage: https://www.shadowsocks.org +Vcs-Git: https://github.com/shadowsocks/shadowsocks-libev.git +Vcs-Browser: https://github.com/shadowsocks/shadowsocks-libev + +Package: libshadowsocks-libev-dev +Architecture: any +Section: libdevel +Breaks: + shadowsocks-libev (<< 2.4.0), +Depends: + libshadowsocks-libev2 (= ${binary:Version}), + ${misc:Depends}, +Description: lightweight and secure socks5 proxy (development files) + Shadowsocks-libev is a lightweight and secure socks5 proxy for + embedded devices and low end boxes. + . + Shadowsocks-libev was inspired by Shadowsock (in Python). It's rewritten + in pure C and only depends on libev, mbedTLS and a few other tiny + libraries. + . + This package provides C header files for the libraries. + +Package: libshadowsocks-libev2 +Architecture: any +Multi-Arch: same +Section: libs +Replaces: libshadowsocks-libev1 +Breaks: + libshadowsocks-libev1, + shadowsocks-libev (<< 2.4.0), +Pre-Depends: + ${misc:Pre-Depends}, +Depends: + ${misc:Depends}, + ${shlibs:Depends}, +Description: lightweight and secure socks5 proxy (shared library) + Shadowsocks-libev is a lightweight and secure socks5 proxy for + embedded devices and low end boxes. + . + Shadowsocks-libev was inspired by Shadowsock (in Python). It's rewritten + in pure C and only depends on libev, mbedTLS and a few other tiny + libraries. + . + This package provides shared libraries. + +Package: shadowsocks-libev +Replaces: + shadowsocks (<< 1.5.3-2), +Breaks: + shadowsocks (<< 1.5.3-2), +Architecture: any +Depends: + apg, + ${misc:Depends}, + ${shlibs:Depends}, +Description: lightweight and secure socks5 proxy + Shadowsocks-libev is a lightweight and secure socks5 proxy for + embedded devices and low end boxes. + . + Shadowsocks-libev was inspired by Shadowsock (in Python). It's rewritten + in pure C and only depends on libev, mbedTLS and a few other tiny + libraries. diff --git a/shadowsocksr-libev/src/debian/copyright b/shadowsocksr-libev/src/debian/copyright new file mode 100644 index 000000000..d4fe3cfa6 --- /dev/null +++ b/shadowsocksr-libev/src/debian/copyright @@ -0,0 +1,204 @@ +Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ +Upstream-Name: shadowsocks-libev +Upstream-Contact: Max Lv +Source: https://github.com/shadowsocks/shadowsocks-libev + +Files: * +Copyright: 2013-2015, Clow Windy + 2013-2016, Max Lv + 2014, Linus Yang +License: GPL-3+ + +Files: debian/* +Copyright: 2013-2015, Max Lv + 2015, Boyuan Yang <073plan@gmail.com> + 2016, Roger Shimizu +License: GPL-3+ + +Files: libcork/* libipset/* +Copyright: 2011-2013, RedJack, LLC. +License: BSD-3-clause + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + . + Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + . + Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + . + Neither the name of RedJack Software, LLC nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + . + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +Files: doc/* +Copyright: 2012-2016, Max Lv +License: GFDL-1.1+ + +Files: m4/ax_pthread.m4 +Copyright: 2008 Steven G. Johnson + 2011 Daniel Richard G. +License: GPL-3+ with Autoconf exception + +Files: m4/ax_tls.m4 +Copyright: 2008 Alan Woodland + 2010 Diego Elio Petteno` +License: GPL-3+ with Autoconf exception + +Files: m4/pcre.m4 +Copyright: 2015 Syrone Wong +License: Apache-2.0 + +Files: m4/stack-protector.m4 +Copyright: 2007 Google Inc. +License: Apache-2.0 + +Files: src/json.c src/json.h +Copyright: 2012-2014, James McLaughlin et al. +License: BSD-2-clause + +Files: src/http.c src/http.h src/protocol.h src/resolv.c src/resolv.h src/tls.c src/tls.h +Copyright: 2011-2014, Dustin Lundquist +License: BSD-2-clause + +Files: src/rule.c src/rule.h +Copyright: 2011-2012, Dustin Lundquist + 2011, Manuel Kasper +License: BSD-2-clause + +Files: src/ss-nat +Copyright: 2015, OpenWrt-dist + 2015, Jian Chang +License: GPL-3+ + +Files: src/uthash.h +Copyright: 2003-2013, Troy D. Hanson +License: BSD-1-clause + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + . + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + . + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER + OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +License: Apache-2.0 + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with + the License. You may obtain a copy of the License at + . + http://www.apache.org/licenses/LICENSE-2.0 + . + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + . + On Debian systems, the complete text of the Apache version 2.0 license + can be found in "/usr/share/common-licenses/Apache-2.0". + +License: BSD-2-clause + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + . + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + . + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + . + THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + +License: GFDL-1.1+ + Permission is granted to copy, distribute and/or modify this document + under the terms of the GNU Free Documentation License, Version 1.1 or + any later version published by the Free Software Foundation; + with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. + . + A copy of the license is included in the section entitled + "GNU Free Documentation License". + +License: GPL-3+ + This package is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + . + This package is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + . + You should have received a copy of the GNU General Public License + along with this program. If not, see + . + On Debian systems, the complete text of the GNU General + Public License version 3 can be found in "/usr/share/common-licenses/GPL-3". + +License: GPL-3+ with Autoconf exception + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation, either version 3 of the License, or (at your + option) any later version. + . + This program is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General + Public License for more details. + . + You should have received a copy of the GNU General Public License along + with this program. If not, see . + . + As a special exception, the respective Autoconf Macro's copyright owner + gives unlimited permission to copy, distribute and modify the configure + scripts that are the output of Autoconf when processing the Macro. You + need not follow the terms of the GNU General Public License when using + or distributing such scripts, even though portions of the text of the + Macro appear in them. The GNU General Public License (GPL) does govern + all other use of the material that constitutes the Autoconf Macro. + . + This special exception to the GPL applies to versions of the Autoconf + Macro released by the Autoconf Archive. When you make and distribute a + modified version of the Autoconf Macro, you may extend this special + exception to the GPL to apply to your modified version as well. diff --git a/shadowsocksr-libev/src/debian/copyright.original b/shadowsocksr-libev/src/debian/copyright.original new file mode 100644 index 000000000..b7ed35e2d --- /dev/null +++ b/shadowsocksr-libev/src/debian/copyright.original @@ -0,0 +1,23 @@ +This work was packaged for Debian by: + + Max Lv on Sat, 06 Apr 2013 16:59:15 +0800 + +It was downloaded from: + + https://github.com/madeye/shadowsocks-libev + +Upstream Author(s): + + clowwindy + +Copyright: + + Copyright (C) 2013 Max Lv + +License: + + GPLv3 + +The Debian packaging is: + + Copyright (C) 2013 Max Lv diff --git a/shadowsocksr-libev/src/debian/libshadowsocks-libev-dev.install b/shadowsocksr-libev/src/debian/libshadowsocks-libev-dev.install new file mode 100644 index 000000000..304e0ed96 --- /dev/null +++ b/shadowsocksr-libev/src/debian/libshadowsocks-libev-dev.install @@ -0,0 +1,3 @@ +usr/include/ +usr/lib/*/libshadowsocks-libev.so +usr/lib/*/pkgconfig/ diff --git a/shadowsocksr-libev/src/debian/libshadowsocks-libev2.install b/shadowsocksr-libev/src/debian/libshadowsocks-libev2.install new file mode 100644 index 000000000..590078a3d --- /dev/null +++ b/shadowsocksr-libev/src/debian/libshadowsocks-libev2.install @@ -0,0 +1 @@ +usr/lib/*/libshadowsocks-libev.so.* diff --git a/shadowsocksr-libev/src/debian/rules b/shadowsocksr-libev/src/debian/rules new file mode 100644 index 000000000..36c54345b --- /dev/null +++ b/shadowsocksr-libev/src/debian/rules @@ -0,0 +1,25 @@ +#!/usr/bin/make -f +# See debhelper(7) (uncomment to enable) +# output every command that modifies files on the build system. +#export DH_VERBOSE = 1 + +# Security Hardening +export DEB_BUILD_MAINT_OPTIONS = hardening=+all + +DPKG_EXPORT_BUILDFLAGS = 1 +include /usr/share/dpkg/buildflags.mk + +override_dh_auto_install: + find src/ -name '*.la' -delete + dh_auto_install + +override_dh_auto_configure: + dh_auto_configure -- \ + --enable-shared \ + --disable-ssp + +override_dh_installchangelogs: + dh_installchangelogs -XChanges + +%: + dh $@ --with systemd diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev-local@.service b/shadowsocksr-libev/src/debian/shadowsocks-libev-local@.service new file mode 100644 index 000000000..3595f6c8b --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev-local@.service @@ -0,0 +1,24 @@ +# This file is part of shadowsocks-libev. +# +# Shadowsocks-libev is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This is a template unit file. Users may copy and rename the file into +# config directories to make new service instances. See systemd.unit(5) +# for details. + +[Unit] +Description=Shadowsocks-Libev Custom Client Service for %I +Documentation=man:ss-local(1) +After=network.target + +[Service] +Type=simple +CapabilityBoundingSet=CAP_NET_BIND_SERVICE +ExecStart=/usr/bin/ss-local -c /etc/shadowsocks-libev/%i.json + +[Install] +WantedBy=multi-user.target + diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev-redir@.service b/shadowsocksr-libev/src/debian/shadowsocks-libev-redir@.service new file mode 100644 index 000000000..420f1946c --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev-redir@.service @@ -0,0 +1,24 @@ +# This file is part of shadowsocks-libev. +# +# Shadowsocks-libev is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This is a template unit file. Users may copy and rename the file into +# config directories to make new service instances. See systemd.unit(5) +# for details. + +[Unit] +Description=Shadowsocks-Libev Custom Client Service Redir Mode for %I +Documentation=man:ss-redir(1) +After=network.target + +[Service] +Type=simple +CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE +ExecStart=/usr/bin/ss-redir -c /etc/shadowsocks-libev/%i.json + +[Install] +WantedBy=multi-user.target + diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev-server@.service b/shadowsocksr-libev/src/debian/shadowsocks-libev-server@.service new file mode 100644 index 000000000..b64699511 --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev-server@.service @@ -0,0 +1,24 @@ +# This file is part of shadowsocks-libev. +# +# Shadowsocks-libev is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This is a template unit file. Users may copy and rename the file into +# config directories to make new service instances. See systemd.unit(5) +# for details. + +[Unit] +Description=Shadowsocks-Libev Custom Server Service for %I +Documentation=man:ss-server(1) +After=network.target + +[Service] +Type=simple +CapabilityBoundingSet=CAP_NET_BIND_SERVICE +ExecStart=/usr/bin/ss-server -c /etc/shadowsocks-libev/%i.json + +[Install] +WantedBy=multi-user.target + diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev-tunnel@.service b/shadowsocksr-libev/src/debian/shadowsocks-libev-tunnel@.service new file mode 100644 index 000000000..3f9f8aefa --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev-tunnel@.service @@ -0,0 +1,24 @@ +# This file is part of shadowsocks-libev. +# +# Shadowsocks-libev is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This is a template unit file. Users may copy and rename the file into +# config directories to make new service instances. See systemd.unit(5) +# for details. + +[Unit] +Description=Shadowsocks-Libev Custom Client Service Tunnel Mode for %I +Documentation=man:ss-tunnel(1) +After=network.target + +[Service] +Type=simple +CapabilityBoundingSet=CAP_NET_BIND_SERVICE +ExecStart=/usr/bin/ss-tunnel -c /etc/shadowsocks-libev/%i.json + +[Install] +WantedBy=multi-user.target + diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev.default b/shadowsocksr-libev/src/debian/shadowsocks-libev.default new file mode 100644 index 000000000..7542b3146 --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev.default @@ -0,0 +1,25 @@ +# Defaults for shadowsocks initscript +# sourced by /etc/init.d/shadowsocks-libev +# installed at /etc/default/shadowsocks-libev by the maintainer scripts + +# +# This is a POSIX shell fragment +# +# Note: `START', `GROUP' and `MAXFD' options are not recognized by systemd. +# Please change those settings in the corresponding systemd unit file. + +# Enable during startup? +START=yes + +# Configuration file +CONFFILE="/etc/shadowsocks-libev/config.json" + +# Extra command line arguments +DAEMON_ARGS="-u" + +# User and group to run the server as +USER=root +GROUP=root + +# Number of maximum file descriptors +MAXFD=32768 diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev.docs b/shadowsocksr-libev/src/debian/shadowsocks-libev.docs new file mode 100644 index 000000000..0d4e47d0c --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev.docs @@ -0,0 +1,3 @@ +AUTHORS +README.md +debian/copyright.original diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev.init b/shadowsocksr-libev/src/debian/shadowsocks-libev.init new file mode 100644 index 000000000..5e2f5441a --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev.init @@ -0,0 +1,136 @@ +#!/bin/sh +### BEGIN INIT INFO +# Provides: shadowsocks-libev +# Required-Start: $network $local_fs $remote_fs +# Required-Stop: $remote_fs +# Default-Start: 2 3 4 5 +# Default-Stop: 0 1 6 +# Short-Description: lightweight secured socks5 proxy +# Description: Shadowsocks-libev is a lightweight secured +# socks5 proxy for embedded devices and low end boxes. +### END INIT INFO + +# Author: Max Lv + +# PATH should only include /usr/ if it runs after the mountnfs.sh script +PATH=/sbin:/usr/sbin:/bin:/usr/bin +DESC=shadowsocks-libev # Introduce a short description here +NAME=shadowsocks-libev # Introduce the short server's name here +DAEMON=/usr/bin/ss-server # Introduce the server's location here +DAEMON_ARGS="" # Arguments to run the daemon with +PIDFILE=/var/run/$NAME/$NAME.pid +SCRIPTNAME=/etc/init.d/$NAME + +# Exit if the package is not installed +[ -x $DAEMON ] || exit 0 + +# Read configuration variable file if it is present +[ -r /etc/default/$NAME ] && . /etc/default/$NAME + +[ "$START" = "yes" ] || exit 0 + +: ${USER:="root"} +: ${GROUP:="root"} + +# Load the VERBOSE setting and other rcS variables +. /lib/init/vars.sh + +# Define LSB log_* functions. +# Depend on lsb-base (>= 3.0-6) to ensure that this file is present. +. /lib/lsb/init-functions + +# +# Function that starts the daemon/service +# +do_start() +{ + # Modify the file descriptor limit + ulimit -n ${MAXFD} + + # Take care of pidfile permissions + mkdir /var/run/$NAME 2>/dev/null || true + chown "$USER:$GROUP" /var/run/$NAME + + # Return + # 0 if daemon has been started + # 1 if daemon was already running + # 2 if daemon could not be started + start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid root:$GROUP --exec $DAEMON --test > /dev/null \ + || return 1 + start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid root:$GROUP --exec $DAEMON -- \ + -c "$CONFFILE" -a "$USER" -u -f $PIDFILE $DAEMON_ARGS \ + || return 2 +} + +# +# Function that stops the daemon/service +# +do_stop() +{ + # Return + # 0 if daemon has been stopped + # 1 if daemon was already stopped + # 2 if daemon could not be stopped + # other if a failure occurred + start-stop-daemon --stop --quiet --retry=KILL/5 --pidfile $PIDFILE --exec $DAEMON + RETVAL="$?" + [ "$RETVAL" = 2 ] && return 2 + # Wait for children to finish too if this is a daemon that forks + # and if the daemon is only ever run from this initscript. + # If the above conditions are not satisfied then add some other code + # that waits for the process to drop all resources that could be + # needed by services started subsequently. A last resort is to + # sleep for some time. + start-stop-daemon --stop --quiet --oknodo --retry=KILL/5 --exec $DAEMON + [ "$?" = 2 ] && return 2 + # Many daemons don't delete their pidfiles when they exit. + rm -f $PIDFILE + return "$RETVAL" +} + + +case "$1" in + start) + [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC " "$NAME" + do_start + case "$?" in + 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;; + 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;; + esac + ;; +stop) + [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME" + do_stop + case "$?" in + 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;; + 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;; +esac +;; + status) + status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $? + ;; + restart|force-reload) + log_daemon_msg "Restarting $DESC" "$NAME" + do_stop + case "$?" in + 0|1) + do_start + case "$?" in + 0) log_end_msg 0 ;; + 1) log_end_msg 1 ;; # Old process is still running + *) log_end_msg 1 ;; # Failed to start + esac + ;; + *) + # Failed to stop + log_end_msg 1 + ;; + esac + ;; +*) + echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2 + exit 3 + ;; +esac + +: diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev.install b/shadowsocksr-libev/src/debian/shadowsocks-libev.install new file mode 100644 index 000000000..bee58a6e4 --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev.install @@ -0,0 +1,5 @@ +debian/config.json usr/share/shadowsocks-libev +debian/shadowsocks-libev-*.service lib/systemd/system +usr/bin/ +usr/share/man/ +completions/bash/* usr/share/bash-completion/completions/ diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev.postinst b/shadowsocksr-libev/src/debian/shadowsocks-libev.postinst new file mode 100644 index 000000000..58451ed83 --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev.postinst @@ -0,0 +1,25 @@ +#!/bin/sh + +set -e + +case "$1" in + configure|reconfigure) + if [ ! -f /etc/shadowsocks-libev/config.json ]; then + passwd=$(apg -n 1 -M ncl) + mkdir -p /etc/shadowsocks-libev + sed "s/barfoo!/$passwd/" /usr/share/shadowsocks-libev/config.json \ + > /etc/shadowsocks-libev/config.json + fi + ;; + abort-upgrade|abort-remove|abort-deconfigure) + exit 0 + ;; + *) + echo "postinst called with unknown argument \`$1'" >&2 + exit 0 + ;; +esac + +#DEBHELPER# + +exit 0 diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev.postrm b/shadowsocksr-libev/src/debian/shadowsocks-libev.postrm new file mode 100644 index 000000000..bccb360a4 --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev.postrm @@ -0,0 +1,22 @@ +#!/bin/sh + +set -e + +case "$1" in + purge) + rm -f /etc/shadowsocks-libev/config.json + test -f /etc/shadowsocks-libev/* \ + || rm -r /etc/shadowsocks-libev/ + ;; + remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear) + exit 0 + ;; + *) + echo "postrm called with unknown argument \`$1'" >&2 + exit 0 + ;; +esac + +#DEBHELPER# + +exit 0 diff --git a/shadowsocksr-libev/src/debian/shadowsocks-libev.service b/shadowsocksr-libev/src/debian/shadowsocks-libev.service new file mode 100644 index 000000000..4887b593f --- /dev/null +++ b/shadowsocksr-libev/src/debian/shadowsocks-libev.service @@ -0,0 +1,25 @@ +# This file is part of shadowsocks-libev. +# +# Shadowsocks-libev is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This file is default for Debian packaging. See also +# /etc/default/shadowsocks-libev for environment variables. + +[Unit] +Description=Shadowsocks-libev Default Server Service +Documentation=man:shadowsocks-libev(8) +After=network.target + +[Service] +Type=simple +EnvironmentFile=/etc/default/shadowsocks-libev +User=root +LimitNOFILE=32768 +ExecStart=/usr/bin/ss-server -a $USER -c $CONFFILE $DAEMON_ARGS + +[Install] +WantedBy=multi-user.target + diff --git a/shadowsocksr-libev/src/debian/source.lintian-overrides b/shadowsocksr-libev/src/debian/source.lintian-overrides new file mode 100644 index 000000000..f290882bc --- /dev/null +++ b/shadowsocksr-libev/src/debian/source.lintian-overrides @@ -0,0 +1,4 @@ +# false positive: #505857 +shadowsocks-libev source: debian-watch-file-should-mangle-version +# false positive: #765166 +shadowsocks-libev source: license-problem-gfdl-invariants diff --git a/shadowsocksr-libev/src/debian/source/format b/shadowsocksr-libev/src/debian/source/format new file mode 100644 index 000000000..163aaf8d8 --- /dev/null +++ b/shadowsocksr-libev/src/debian/source/format @@ -0,0 +1 @@ +3.0 (quilt) diff --git a/shadowsocksr-libev/src/debian/watch b/shadowsocksr-libev/src/debian/watch new file mode 100644 index 000000000..173c756dc --- /dev/null +++ b/shadowsocksr-libev/src/debian/watch @@ -0,0 +1,6 @@ +version=4 + +opts=" \ + filenamemangle=s%(?:.*?)?v?(\d[\d.]*)\.tar\.gz%shadowsocks-libev-$1.tar.gz%" \ + https://github.com/shadowsocks/shadowsocks-libev/tags \ + (?:.*?/)?v?(\d[\d.]*)\.tar\.gz debian uupdate diff --git a/shadowsocksr-libev/src/doc/Makefile.am b/shadowsocksr-libev/src/doc/Makefile.am new file mode 100644 index 000000000..8c29d0459 --- /dev/null +++ b/shadowsocksr-libev/src/doc/Makefile.am @@ -0,0 +1,62 @@ +ASCIIDOC = @ASCIIDOC@ +ASCIIDOC_EXTRA = +MANPAGE_XSL = manpage-normal.xsl +XMLTO = @XMLTO@ +XMLTO_EXTRA = -m manpage-bold-literal.xsl +GZIPCMD = @GZIP@ +INSTALL = @INSTALL@ +RM = @RM@ +MV = @MV@ +SED = @SED@ +VERSION = `$(SED) -n 's/.*PACKAGE_VERSION 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@@ -0,0 +1,13 @@ + + + + + + +\ +. + + diff --git a/shadowsocksr-libev/src/doc/shadowsocks-libev.asciidoc b/shadowsocksr-libev/src/doc/shadowsocks-libev.asciidoc new file mode 100644 index 000000000..1933cf08a --- /dev/null +++ b/shadowsocksr-libev/src/doc/shadowsocks-libev.asciidoc @@ -0,0 +1,248 @@ +shadowsocks-libev(8) +==================== + +NAME +---- +shadowsocks-libev - a lightweight and secure socks5 proxy + +SYNOPSIS +-------- +*ss-local*|*ss-redir*|*ss-server*|*ss-tunnel*|*ss-manager* + [-s ] [-p ] [-l ] [-k ] + [-m ] [-f ] [-t ] [-c ] + +DESCRIPTION +----------- +*Shadowsocks-libev* is a lightweight and secure socks5 proxy. +It is a port of the original shadowsocks created by clowwindy. +*Shadowsocks-libev* is written in pure C and takes advantage of *libev* +to achieve both high performance and low resource consumption. + +*Shadowsocks-libev* consists of five components. One is `ss-server`(1) +that runs on a remote server to provide secured tunnel service. +`ss-local`(1) and `ss-redir`(1) are clients on your local machines to proxy +traffic(TCP/UDP or both). +`ss-tunnel`(1) is a tool for local port forwarding. + +While `ss-local`(1) works as a standard socks5 proxy, `ss-redir`(1) works +as a transparent proxy and requires netfilter's NAT module. For more +information, check out the 'EXAMPLE' section. + +`ss-manager`(1) is a controller for multi-user management and traffic +statistics, using UNIX domain socket to talk with `ss-server`(1). +Also, it provides a UNIX domain socket or IP based API for other software. +About the details of this API, please refer to the 'PROTOCOL' section. + +OPTIONS +------- + +-s :: +Set the server's hostname or IP. + +-l :: +Set the local port number. ++ +Not available in server nor manager mode. + +-k :: +Set the password. The server and the client should use the same password. + +-m :: +Set the cipher. ++ +*Shadowsocks-libev* accepts 21 different ciphers: ++ +table, rc4, rc4-md5, aes-128-cfb, aes-192-cfb, aes-256-cfb, +aes-128-ctr, aes-192-ctr, aes-256-ctr, bf-cfb, +camellia-128-cfb, camellia-192-cfb, camellia-256-cfb, cast5-cfb, des-cfb, +idea-cfb, rc2-cfb, seed-cfb, salsa20, chacha20 and chacha20-ietf. ++ +The default cipher is 'rc4-md5'. ++ +If built with PolarSSL or custom OpenSSL libraries, some of +these ciphers may not work. + +-a :: +Run as a specific user. + +-f :: +Start shadowsocks as a daemon with specific pid file. + +-t :: +Set the socket timeout in seconds. The default value is 60. + +-c :: +Use a configuration file. + +-n :: +Specify max number of open files. ++ +Not available in manager mode. ++ +Only available on Linux. + +-i :: +Send traffic through specific network interface. ++ +For example, there are three interfaces in your device, which is +lo (127.0.0.1), eth0 (192.168.0.1) and eth1 (192.168.0.2). +Meanwhile, you configure *shadowsocks-libev* to listen on 0.0.0.0:8388 +and bind to eth1. That results the traffic go out through eth1, +but not lo nor eth0. This option is useful to control traffic in +multi-interface environment. ++ +Not available in redir mode. + +-b :: +Specify local address to bind. ++ +Not available in server nor manager mode. + +-u:: +Enable UDP relay. ++ +TPROXY is required in redir mode. You may need root permission. + +-U:: +Enable UDP relay and disable TCP relay. ++ +Not available in local mode. + +-A:: +Enable onetime authentication. + +-L :: +Specify destination server address and port for local port forwarding. ++ +Only available in tunnel mode. + +-d :: +Setup name servers for internal DNS resolver (libudns). +The default server is fetched from /etc/resolv.conf. ++ +Only available in server and manager mode. + +--fast-open:: +Enable TCP fast open. ++ +Not available in redir nor tunnel mode, with Linux kernel > 3.7.0. + +--acl :: +Enable ACL (Access Control List) and specify config file. ++ +Not available in redir nor tunnel mode. + +--manager-address :: +Specify UNIX domain socket address. ++ +Only available in server and manager mode. + +--executable :: +Specify the executable path of `ss-server`. ++ +Only available in manager mode. + +-v:: +Enable verbose mode. + +-h|--help:: +Print help message. + +CONFIG FILE +----------- +The config file is written in JSON and easy to edit. + +The config file equivalent of command line options is listed as example below. +[frame="topbot",options="header"] +|========================================================================== +| Command line | JSON +| -s some.server.net | "server": "some.server.net" +| -s some.server.net -p 1234 (client) | "server": "some.server.net:1234" +| -p 1234 -k "PasSworD" (server) | "port_password": {"1234":"PasSworD"} +| -p 1234 | "server_port": "1234" +| -b 0.0.0.0 | "local_address": "0.0.0.0" +| -l 4321 | "local_port": "4321" +| -k "PasSworD" | "password": "PasSworD" +| -m "aes-256-cfb" | "method": "aes-256-cfb" +| -t 60 | "timeout": 60 +| -a nobody | "user": "nobody" +| --fast-open | "fast_open": true +| -6 | "ipv6_first": true +| -A | "auth": true +| -n "/etc/nofile" | "nofile": "/etc/nofile" +| -d "8.8.8.8" | "nameserver": "8.8.8.8" +| -L "somedns.net:53" | "tunnel_address": "somedns.net:53" +| -u | "mode": "tcp_and_udp" +| -U | "mode": "udp_only" +| no "-u" nor "-U" options (default) | "mode": "tcp_only" +|============================================================================ + +EXAMPLE +------- +`ss-redir` requires netfilter's NAT function. Here is an example: + +.... +# Create new chain +root@Wrt:~# iptables -t nat -N SHADOWSOCKS +root@Wrt:~# iptables -t mangle -N SHADOWSOCKS + +# Ignore your shadowsocks server's addresses +# It's very IMPORTANT, just be careful. +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 123.123.123.123 -j RETURN + +# Ignore LANs and any other addresses you'd like to bypass the proxy +# See Wikipedia and RFC5735 for full list of reserved networks. +# See ashi009/bestroutetb for a highly optimized CHN route list. +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 0.0.0.0/8 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 10.0.0.0/8 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 127.0.0.0/8 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 169.254.0.0/16 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 172.16.0.0/12 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 192.168.0.0/16 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 224.0.0.0/4 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 240.0.0.0/4 -j RETURN + +# Anything else should be redirected to shadowsocks's local port +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -p tcp -j REDIRECT --to-ports 12345 + +# Add any UDP rules +root@Wrt:~# ip rule add fwmark 0x01/0x01 table 100 +root@Wrt:~# ip route add local 0.0.0.0/0 dev lo table 100 +root@Wrt:~# iptables -t mangle -A SHADOWSOCKS -p udp --dport 53 -j TPROXY --on-port 12345 --tproxy-mark 0x01/0x01 + +# Apply the rules +root@Wrt:~# iptables -t nat -A PREROUTING -p tcp -j SHADOWSOCKS +root@Wrt:~# iptables -t mangle -A PREROUTING -j SHADOWSOCKS + +# Start the shadowsocks-redir +root@Wrt:~# ss-redir -u -c /etc/config/shadowsocks.json -f /var/run/shadowsocks.pid +.... + +PROTOCOL +-------- +`ss-manager`(1) provides several APIs through UDP protocol:: + +Send UDP commands in the following format to the manager-address provided to ss-manager(1): :::: + command: [JSON data] + +To add a port: :::: + add: {"server_port": 8001, "password":"7cd308cc059"} + +To remove a port: :::: + remove: {"server_port": 8001} + +To receive a pong: :::: + ping + +Then `ss-manager`(1) will send back the traffic statistics: :::: + stat: {"8001":11370} + +SEE ALSO +-------- +`ss-local`(1), +`ss-server`(1), +`ss-tunnel`(1), +`ss-redir`(1), +`ss-manager`(1), +`iptables`(8), +/etc/shadowsocks-libev/config.json diff --git a/shadowsocksr-libev/src/doc/ss-local.asciidoc b/shadowsocksr-libev/src/doc/ss-local.asciidoc new file mode 100644 index 000000000..9c481cf83 --- /dev/null +++ b/shadowsocksr-libev/src/doc/ss-local.asciidoc @@ -0,0 +1,142 @@ +ss-local(1) +=========== + +NAME +---- +ss-local - shadowsocks client as socks5 proxy, libev port + +SYNOPSIS +-------- +*ss-local* + [-Auv6] [-h|--help] + [-s ] [-p ] [-l ] + [-k ] [-m ] [-f ] + [-t ] [-c ] [-i ] + [-a ] [-b ] + [--fast-open] [--acl ] [--mtu ] + +DESCRIPTION +----------- +*Shadowsocks-libev* is a lightweight and secure socks5 proxy. +It is a port of the original shadowsocks created by clowwindy. +*Shadowsocks-libev* is written in pure C and takes advantage of libev to +achieve both high performance and low resource consumption. + +*Shadowsocks-libev* consists of five components. `ss-local`(1) works as a standard +socks5 proxy on local machines to proxy TCP traffic. +For more information, check out `shadowsocks-libev`(8). + +OPTIONS +------- + +-s :: +Set the server's hostname or IP. + +-p :: +Set the server's port number. + +-l :: +Set the local port number. + +-k :: +Set the password. The server and the client should use the same password. + +-m :: +Set the cipher. ++ +*Shadowsocks-libev* accepts 21 different ciphers: ++ +table, rc4, rc4-md5, aes-128-cfb, aes-192-cfb, aes-256-cfb, +aes-128-ctr, aes-192-ctr, aes-256-ctr, bf-cfb, +camellia-128-cfb, camellia-192-cfb, camellia-256-cfb, cast5-cfb, des-cfb, +idea-cfb, rc2-cfb, seed-cfb, salsa20, chacha20 and chacha20-ietf. ++ +The default cipher is 'rc4-md5'. ++ +If built with PolarSSL or custom OpenSSL libraries, some of +these ciphers may not work. + +-a :: +Run as a specific user. + +-f :: +Start shadowsocks as a daemon with specific pid file. + +-t :: +Set the socket timeout in seconds. The default value is 60. + +-c :: +Use a configuration file. ++ +Refer to `shadowsocks-libev`(8) 'CONFIG FILE' section for more details. + +-n :: +Specify max number of open files. ++ +Only available on Linux. + +-i :: +Send traffic through specific network interface. ++ +For example, there are three interfaces in your device, +which is lo (127.0.0.1), eth0 (192.168.0.1) and eth1 (192.168.0.2). +Meanwhile, you configure `ss-local` to listen on 0.0.0.0:8388 and bind to eth1. +That results the traffic go out through eth1, but not lo nor eth0. +This option is useful to control traffic in multi-interface environment. + +-b :: +Specify local address to bind. + +-u:: +Enable UDP relay. + +-U:: +Enable UDP relay and disable TCP relay. + +-A:: +Enable onetime authentication. + +-6:: +Resovle hostname to IPv6 address first. + +--fast-open:: +Enable TCP fast open. ++ +Only available with Linux kernel > 3.7.0. + +--acl :: +Enable ACL (Access Control List) and specify config file. + +--mtu :: +Specify the MTU of your network interface. + +--mptcp:: +Enable Multipath TCP. ++ +Only available with MPTCP enabled Linux kernel. + +-v:: +Enable verbose mode. + +-h|--help:: +Print help message. + +EXAMPLE +------- +`ss-local`(1) can be started from command line and run in foreground. +Here is an example: +.... +# Start ss-local with given parameters +ss-local -s example.com -p 12345 -l 1080 -k foobar -m aes-256-cfb +.... + +SEE ALSO +-------- +`ss-server`(1), +`ss-tunnel`(1), +`ss-redir`(1), +`ss-manager`(1), +`shadowsocks-libev`(8), +`iptables`(8), +/etc/shadowsocks-libev/config.json + diff --git a/shadowsocksr-libev/src/doc/ss-manager.asciidoc b/shadowsocksr-libev/src/doc/ss-manager.asciidoc new file mode 100644 index 000000000..6183b9230 --- /dev/null +++ b/shadowsocksr-libev/src/doc/ss-manager.asciidoc @@ -0,0 +1,162 @@ +ss-manager(1) +============= + +NAME +---- +ss-manager - ss-server controller for multi-user management and traffic statistics + +SYNOPSIS +-------- +*ss-manager* + [-AuUv] [-h|--help] + [-s ] [-p ] [-l ] + [-k ] [-m ] [-f ] + [-t ] [-c ] [-i ] + [-b ] [-a ] + [--manager-address ] + [--executable ] + +DESCRIPTION +----------- +*Shadowsocks-libev* is a lightweight and secure socks5 proxy. +It is a port of the original shadowsocks created by clowwindy. +*Shadowsocks-libev* is written in pure C and takes advantage of libev to +achieve both high performance and low resource consumption. + +*Shadowsocks-libev* consists of five components. +`ss-manager`(1) is a controller for multi-user management and +traffic statistics, using UNIX domain socket to talk with `ss-server`(1). +Also, it provides a UNIX domain socket or IP based API for other software. +About the details of this API, please refer to the following 'PROTOCOL' +section. + +OPTIONS +------- +-s :: +Set the server's hostname or IP. + +-k :: +Set the password. The server and the client should use the same password. + +-m :: +Set the cipher. ++ +*Shadowsocks-libev* accepts 21 different ciphers: ++ +table, rc4, rc4-md5, aes-128-cfb, aes-192-cfb, aes-256-cfb, +aes-128-ctr, aes-192-ctr, aes-256-ctr, bf-cfb, +camellia-128-cfb, camellia-192-cfb, camellia-256-cfb, cast5-cfb, des-cfb, +idea-cfb, rc2-cfb, seed-cfb, salsa20, chacha20 and chacha20-ietf. ++ +The default cipher is 'rc4-md5'. ++ +If built with PolarSSL or custom OpenSSL libraries, some of +these ciphers may not work. + +-a :: +Run as a specific user. + +-f :: +Start shadowsocks as a daemon with specific pid file. + +-t :: +Set the socket timeout in seconds. The default value is 60. + +-c :: +Use a configuration file. + +-i :: +Send traffic through specific network interface. ++ +For example, there are three interfaces in your device, +which is lo (127.0.0.1), eth0 (192.168.0.1) and eth1 (192.168.0.2). +Meanwhile, you configure `ss-local` to listen on 0.0.0.0:8388 and bind to eth1. +That results the traffic go out through eth1, but not lo nor eth0. +This option is useful to control traffic in multi-interface environment. + +-u:: + Enable UDP relay. + +-U:: +Enable UDP relay and disable TCP relay. + +-A:: +Enable onetime authentication. + +-d :: +Setup name servers for internal DNS resolver (libudns). +The default server is fetched from `/etc/resolv.conf`. + +--fast-open:: +Enable TCP fast open. ++ +Only available with Linux kernel > 3.7.0. + +--acl :: +Enable ACL (Access Control List) and specify config file. + +--manager-address :: +Specify UNIX domain socket address for the communication between ss-manager(1) and ss-server(1). ++ +Only available in server and manager mode. + +--executable :: +Specify the executable path of ss-server. ++ +Only available in manager mode. + +-v:: +Enable verbose mode. + +-h|--help:: +Print help message. + +PROTOCOL +-------- +`ss-manager`(1) provides several APIs through UDP protocol: + +Send UDP commands in the following format to the manager-address provided to ss-manager(1): :::: + command: [JSON data] + +To add a port: :::: + add: {"server_port": 8001, "password":"7cd308cc059"} + +To remove a port: :::: + remove: {"server_port": 8001} + +To receive a pong: :::: + ping + +Then `ss-manager`(1) will send back the traffic statistics: :::: + stat: {"8001":11370} + +EXAMPLE +------- +To use `ss-manager`(1), First start it and specify necessary information. + +Then communicate with `ss-manager`(1) through UNIX Domain Socket using UDP +protocol: + +.... +# Start the manager. Arguments for ss-server will be passed to generated +# ss-server process(es) respectively. +ss-manager --manager-address /tmp/manager.sock --executable $(which ss-server) -s example.com -m aes-256-cfb -c /path/to/config.json + +# Connect to the socket. Using netcat-openbsd as an example. +# You should use scripts or other programs for further management. +nc -Uu /tmp/manager.sock +.... + +After that, you may communicate with `ss-manager`(1) as described above in the +'PROTOCOL' section. + +SEE ALSO +-------- +`ss-local`(1), +`ss-server`(1), +`ss-tunnel`(1), +`ss-redir`(1), +`shadowsocks-libev`(8), +`iptables`(8), +/etc/shadowsocks-libev/config.json + diff --git a/shadowsocksr-libev/src/doc/ss-nat.asciidoc b/shadowsocksr-libev/src/doc/ss-nat.asciidoc new file mode 100644 index 000000000..355083a5e --- /dev/null +++ b/shadowsocksr-libev/src/doc/ss-nat.asciidoc @@ -0,0 +1,95 @@ +ss-nat(1) +========= + +NAME +---- +ss-nat - helper script to setup NAT rules for transparent proxy + +SYNOPSIS +-------- +*ss-nat* + [-ouUfh] + [-s ] [-S ] [-l ] + [-L ] [-i ] [-a ] + [-b ] [-w ] [-e ] + +DESCRIPTION +----------- +*Shadowsocks-libev* is a lightweight and secure socks5 proxy. +It is a port of the original shadowsocks created by clowwindy. +*Shadowsocks-libev* is written in pure C and takes advantage of libev to +achieve both high performance and low resource consumption. + +`ss-nat`(1) sets up NAT rules for `ss-redir`(1) to provide traffic redirection. +It requires netfilter's NAT module and `iptables`(8). +For more information, check out `shadowsocks-libev`(8) and the following +'EXAMPLE' section. + +OPTIONS +------- +-s :: +IP address of shadowsocks remote server + +-l :: +Port number of shadowsocks local server + +-S :: +IP address of shadowsocks remote UDP server + +-L :: +Port number of shadowsocks local UDP server + +-i :: +a file whose content is bypassed ip list + +-a :: +LAN IP of access control, need a prefix to define access control mode + +-b :: +WAN IP of will be bypassed + +-w :: +WAN IP of will be forwarded + +-e :: +Extra options for iptables + +-o:: +Apply the rules to the OUTPUT chain + +-u:: +Enable udprelay mode, TPROXY is required + +-U:: +Enable udprelay mode, using different IP and ports for TCP and UDP + +-f:: +Flush the rules + +-h:: +Show this help message and exit + +EXAMPLE +------- +`ss-nat` requires `iptables`(8). Here is an example: + +.... +# Enable NAT rules for shadowsocks, +# with both TCP and UDP redirection enabled, +# and applied for both PREROUTING and OUTPUT chains +root@Wrt:~# ss-nat -s 192.168.1.100 -l 1080 -u -o + +# Disable and flush all NAT rules for shadowsocks +root@Wrt:~# ss-nat -f +.... + +SEE ALSO +-------- +`ss-local`(1), +`ss-server`(1), +`ss-tunnel`(1), +`ss-manager`(1), +`shadowsocks-libev`(8), +`iptables`(8), +/etc/shadowsocks-libev/config.json + diff --git a/shadowsocksr-libev/src/doc/ss-redir.asciidoc b/shadowsocksr-libev/src/doc/ss-redir.asciidoc new file mode 100644 index 000000000..5993ceafc --- /dev/null +++ b/shadowsocksr-libev/src/doc/ss-redir.asciidoc @@ -0,0 +1,158 @@ +ss-redir(1) +=========== + +NAME +---- +ss-redir - shadowsocks client as transparent proxy, libev port + +SYNOPSIS +-------- +*ss-redir* + [-AuUv6] [-h|--help] + [-s ] [-p ] [-l ] + [-k ] [-m ] [-f ] + [-t ] [-c ] [-b ] + [-a ] [-n ] [--mtu ] + +DESCRIPTION +----------- +*Shadowsocks-libev* is a lightweight and secure socks5 proxy. +It is a port of the original shadowsocks created by clowwindy. +*Shadowsocks-libev* is written in pure C and takes advantage of libev to +achieve both high performance and low resource consumption. + +*Shadowsocks-libev* consists of five components. +`ss-redir`(1) works as a transparent proxy on local machines to proxy TCP +traffic and requires netfilter's NAT module. +For more information, check out `shadowsocks-libev`(8) and the following +'EXAMPLE' section. + +OPTIONS +------- +-s :: +Set the server's hostname or IP. + +-p :: +Set the server's port number. + +-l :: +Set the local port number. + +-k :: +Set the password. The server and the client should use the same +password. + +-m :: +Set the cipher. ++ +*Shadowsocks-libev* accepts 21 different ciphers: ++ +table, rc4, rc4-md5, aes-128-cfb, aes-192-cfb, aes-256-cfb, +aes-128-ctr, aes-192-ctr, aes-256-ctr, bf-cfb, +camellia-128-cfb, camellia-192-cfb, camellia-256-cfb, cast5-cfb, des-cfb, +idea-cfb, rc2-cfb, seed-cfb, salsa20, chacha20 and chacha20-ietf. ++ +The default cipher is 'rc4-md5'. ++ +If built with PolarSSL or custom OpenSSL libraries, some of +these ciphers may not work. + +-a :: +Run as a specific user. + +-f :: +Start shadowsocks as a daemon with specific pid file. + +-t :: +Set the socket timeout in seconds. The default value is 60. + +-c :: +Use a configuration file. ++ +Refer to `shadowsocks-libev`(8) 'CONFIG FILE' section for more details. + +-n :: +Specify max number of open files. ++ +Only available on Linux. + +-b :: +Specify local address to bind. + +-u:: +Enable UDP relay. ++ +TPROXY is required in redir mode. You may need root permission. + +-U:: +Enable UDP relay and disable TCP relay. + +-A:: +Enable onetime authentication. + +-6:: +Resovle hostname to IPv6 address first. + +--mtu :: +Specify the MTU of your network interface. + +--mptcp:: +Enable Multipath TCP. ++ +Only available with MPTCP enabled Linux kernel. + +-v:: +Enable verbose mode. + +-h|--help:: +Print help message. + +EXAMPLE +------- +ss-redir requires netfilter's NAT function. Here is an example: + +.... +# Create new chain +root@Wrt:~# iptables -t nat -N SHADOWSOCKS + +# Ignore your shadowsocks server's addresses +# It's very IMPORTANT, just be careful. +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 123.123.123.123 -j RETURN + +# Ignore LANs and any other addresses you'd like to bypass the proxy +# See Wikipedia and RFC5735 for full list of reserved networks. +# See ashi009/bestroutetb for a highly optimized CHN route list. +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 0.0.0.0/8 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 10.0.0.0/8 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 127.0.0.0/8 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 169.254.0.0/16 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 172.16.0.0/12 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 192.168.0.0/16 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 224.0.0.0/4 -j RETURN +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -d 240.0.0.0/4 -j RETURN + +# Anything else should be redirected to shadowsocks's local port +root@Wrt:~# iptables -t nat -A SHADOWSOCKS -p tcp -j REDIRECT --to-ports 12345 + +# Add any UDP rules +root@Wrt:~# ip rule add fwmark 0x01/0x01 table 100 +root@Wrt:~# ip route add local 0.0.0.0/0 dev lo table 100 +root@Wrt:~# iptables -t mangle -A SHADOWSOCKS -p udp --dport 53 -j TPROXY --on-port 12345 --tproxy-mark 0x01/0x01 + +# Apply the rules +root@Wrt:~# iptables -t nat -A PREROUTING -p tcp -j SHADOWSOCKS +root@Wrt:~# iptables -t mangle -A PREROUTING -j SHADOWSOCKS + +# Start the shadowsocks-redir +root@Wrt:~# ss-redir -u -c /etc/config/shadowsocks.json -f /var/run/shadowsocks.pid +.... + +SEE ALSO +-------- +`ss-local`(1), +`ss-server`(1), +`ss-tunnel`(1), +`ss-manager`(1), +`shadowsocks-libev`(8), +`iptables`(8), +/etc/shadowsocks-libev/config.json diff --git a/shadowsocksr-libev/src/doc/ss-server.asciidoc b/shadowsocksr-libev/src/doc/ss-server.asciidoc new file mode 100644 index 000000000..7a38f11e0 --- /dev/null +++ b/shadowsocksr-libev/src/doc/ss-server.asciidoc @@ -0,0 +1,172 @@ +ss-server(1) +============ + +NAME +---- +ss-server - shadowsocks server, libev port + +SYNOPSIS +-------- +*ss-server* + [-AuUv] [-h|--help] + [-s ] [-p ] [-l ] + [-k ] [-m ] [-f ] + [-t ] [-c ] [-i ] + [-a ] [-d ] [-n ] + [-b ] [--mtu ] + [--manager-address ] + +DESCRIPTION +----------- +*Shadowsocks-libev* is a lightweight and secure socks5 proxy. +It is a port of the original shadowsocks created by clowwindy. +*Shadowsocks-libev* is written in pure C and takes advantage of libev to +achieve both high performance and low resource consumption. + +*Shadowsocks-libev* consists of five components. +`ss-server`(1) runs on a remote server to provide secured tunnel service. +For more information, check out `shadowsocks-libev`(8). + +OPTIONS +------- +-s :: +Set the server's hostname or IP. + +-p :: +Set the server's port number. + +-k :: +Set the password. The server and the client should use the same password. + +-m :: +Set the cipher. ++ +*Shadowsocks-libev* accepts 21 different ciphers: ++ +table, rc4, rc4-md5, aes-128-cfb, aes-192-cfb, aes-256-cfb, +aes-128-ctr, aes-192-ctr, aes-256-ctr, bf-cfb, +camellia-128-cfb, camellia-192-cfb, camellia-256-cfb, cast5-cfb, des-cfb, +idea-cfb, rc2-cfb, seed-cfb, salsa20, chacha20 and chacha20-ietf. ++ +The default cipher is 'rc4-md5'. ++ +If built with PolarSSL or custom OpenSSL libraries, some of +these ciphers may not work. + +-a :: +Run as a specific user. + +-f :: +Start shadowsocks as a daemon with specific pid file. + +-t :: +Set the socket timeout in seconds. The default value is 60. + +-c :: +Use a configuration file. ++ +Refer to `shadowsocks-libev`(8) 'CONFIG FILE' section for more details. + +-n :: +Specify max number of open files. ++ +Only available on Linux. + +-i :: +Send traffic through specific network interface. ++ +For example, there are three interfaces in your device, +which is lo (127.0.0.1), eth0 (192.168.0.1) and eth1 (192.168.0.2). +Meanwhile, you configure `ss-server` to listen on 0.0.0.0:8388 and bind to eth1. +That results the traffic go out through eth1, but not lo nor eth0. +This option is useful to control traffic in multi-interface environment. + +-b :: +Specify local address to bind. + +-u:: +Enable UDP relay. + +-U:: +Enable UDP relay and disable TCP relay. + +-A:: +Enable onetime authentication. + +-6:: +Resovle hostname to IPv6 address first. + +-d :: +Setup name servers for internal DNS resolver (libudns). +The default server is fetched from '/etc/resolv.conf'. + +--fast-open:: +Enable TCP fast open. ++ +Only available with Linux kernel > 3.7.0. + +--mptcp:: +Enable Multipath TCP. ++ +Only available with MPTCP enabled Linux kernel. + +--firewall:: +Setup firewall rules for auto blocking. + +--acl :: +Enable ACL (Access Control List) and specify config file. + +--manager-address :: +Specify UNIX domain socket address for the communication between ss-manager(1) and ss-server(1). ++ +Only available in server and manager mode. + +--mtu :: +Specify the MTU of your network interface. + +--mptcp:: +Enable Multipath TCP. ++ +Only available with MPTCP enabled Linux kernel. + +-v:: +Enable verbose mode. + +-h|--help:: +Print help message. + +EXAMPLE +------- +It is recommended to use a config file when starting `ss-server`(1). + +The config file is written in JSON and is easy to edit. +Check out the 'SEE ALSO' section for the default path of config file. + +.... +# Start the ss-server +ss-server -c /etc/shadowsocks-libev/config.json +.... + +INCOMPATIBILITY +--------------- +The config file of `shadowsocks-libev`(8) is slightly different from original +shadowsocks. +In order to listen to both IPv4/IPv6 address, use the following grammar in +your config json file: +.... +{ +"server":["::0","0.0.0.0"], +... +} +.... + +SEE ALSO +-------- +`ss-local`(1), +`ss-tunnel`(1), +`ss-redir`(1), +`ss-manager`(1), +`shadowsocks-libev`(8), +`iptables`(8), +/etc/shadowsocks-libev/config.json diff --git a/shadowsocksr-libev/src/doc/ss-tunnel.asciidoc b/shadowsocksr-libev/src/doc/ss-tunnel.asciidoc new file mode 100644 index 000000000..d8505d465 --- /dev/null +++ b/shadowsocksr-libev/src/doc/ss-tunnel.asciidoc @@ -0,0 +1,129 @@ +ss-tunnel(1) +============ + +NAME +---- +ss-tunnel - shadowsocks tools for local port forwarding, libev port + +SYNOPSIS +-------- +*ss-tunnel* + [-AuUv6] [-h|--help] + [-s ] [-p ] [-l ] + [-k ] [-m ] [-f ] + [-t ] [-c ] [-i ] + [-b ] [-a ] [-n ] + [-L addr:port] [--mtu ] + +DESCRIPTION +----------- +*Shadowsocks-libev* is a lightweight and secure socks5 proxy. +It is a port of the original shadowsocks created by clowwindy. +*Shadowsocks-libev* is written in pure C and takes advantage of libev to +achieve both high performance and low resource consumption. + +*Shadowsocks-libev* consists of five components. +`ss-tunnel`(1) is a tool for local port forwarding. +See 'OPTIONS' section for special option needed by `ss-tunnel`(1). +For more information, check out `shadowsocks-libev`(8). + +OPTIONS +------- +-s :: +Set the server's hostname or IP. + +-p :: +Set the server's port number. + +-l :: +Set the local port number. + +-k :: +Set the password. The server and the client should use the same password. + +-m :: +Set the cipher. ++ +*Shadowsocks-libev* accepts 21 different ciphers: ++ +table, rc4, rc4-md5, aes-128-cfb, aes-192-cfb, aes-256-cfb, +aes-128-ctr, aes-192-ctr, aes-256-ctr, bf-cfb, +camellia-128-cfb, camellia-192-cfb, camellia-256-cfb, cast5-cfb, des-cfb, +idea-cfb, rc2-cfb, seed-cfb, salsa20, chacha20 and chacha20-ietf. ++ +The default cipher is 'rc4-md5'. ++ +If built with PolarSSL or custom OpenSSL libraries, some of +these ciphers may not work. + +-a :: +Run as a specific user. + +-f :: +Start shadowsocks as a daemon with specific pid file. + +-t :: +Set the socket timeout in seconds. The default value is 60. + +-c :: +Use a configuration file. ++ +Refer to `shadowsocks-libev`(8) 'CONFIG FILE' section for more details. + +-n :: +Specify max number of open files. ++ +Only available on Linux. + +-i :: +Send traffic through specific network interface. ++ +For example, there are three interfaces in your device, +which is lo (127.0.0.1), eth0 (192.168.0.1) and eth1 (192.168.0.2). +Meanwhile, you configure `ss-tunnel` to listen on 0.0.0.0:8388 and bind to eth1. +That results the traffic go out through eth1, but not lo nor eth0. +This option is useful to control traffic in multi-interface environment. + +-b :: +Specify local address to bind. + +-u:: +Enable UDP relay. + +-U:: +Enable UDP relay and disable TCP relay. + +-A:: +Enable onetime authentication. + +-6:: +Resovle hostname to IPv6 address first. + +-L :: +Specify destination server address and port for local port forwarding. ++ +Only used and available in tunnel mode. + +--mtu :: +Specify the MTU of your network interface. + +--mptcp:: +Enable Multipath TCP. ++ +Only available with MPTCP enabled Linux kernel. + +-v:: +Enable verbose mode. + +-h|--help:: +Print help message. + +SEE ALSO +-------- +`ss-local`(1), +`ss-server`(1), +`ss-redir`(1), +`ss-manager`(1), +`shadowsocks-libev`(8), +`iptables`(8), +/etc/shadowsocks-libev/config.json diff --git a/shadowsocksr-libev/src/docker/alpine/Dockerfile b/shadowsocksr-libev/src/docker/alpine/Dockerfile new file mode 100644 index 000000000..474307fba --- /dev/null +++ b/shadowsocksr-libev/src/docker/alpine/Dockerfile @@ -0,0 +1,59 @@ +# +# Dockerfile for shadowsocks-libev +# + +FROM alpine +MAINTAINER kev + +ARG SS_VER=2.5.6 +ARG SS_URL=https://github.com/shadowsocks/shadowsocks-libev/archive/v$SS_VER.tar.gz + +ENV SERVER_ADDR 0.0.0.0 +ENV SERVER_PORT 8388 +ENV PASSWORD= +ENV METHOD aes-256-cfb +ENV TIMEOUT 300 +ENV DNS_ADDR 8.8.8.8 +ENV DNS_ADDR_2 8.8.4.4 + +RUN set -ex && \ + apk add --no-cache --virtual .build-deps \ + asciidoc \ + autoconf \ + build-base \ + curl \ + libtool \ + linux-headers \ + openssl-dev \ + pcre-dev \ + tar \ + xmlto && \ + cd /tmp && \ + curl -sSL $SS_URL | tar xz --strip 1 && \ + ./configure --prefix=/usr --disable-documentation && \ + make install && \ + cd .. && \ + + runDeps="$( \ + scanelf --needed --nobanner /usr/bin/ss-* \ + | awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \ + | xargs -r apk info --installed \ + | sort -u \ + )" && \ + apk add --no-cache --virtual .run-deps $runDeps && \ + apk del .build-deps && \ + rm -rf /tmp/* + +USER nobody + +EXPOSE $SERVER_PORT/tcp $SERVER_PORT/udp + +CMD ss-server -s $SERVER_ADDR \ + -p $SERVER_PORT \ + -k ${PASSWORD:-$(hostname)} \ + -m $METHOD \ + -t $TIMEOUT \ + --fast-open \ + -d $DNS_ADDR \ + -d $DNS_ADDR_2 \ + -u diff --git a/shadowsocksr-libev/src/docker/alpine/README.md b/shadowsocksr-libev/src/docker/alpine/README.md new file mode 100644 index 000000000..4e174174f --- /dev/null +++ b/shadowsocksr-libev/src/docker/alpine/README.md @@ -0,0 +1,88 @@ +shadowsocks-libev +================= + +[shadowsocks-libev][1] is a lightweight secured socks5 proxy for embedded +devices and low end boxes. It is a port of [shadowsocks][2] created by +@clowwindy maintained by @madeye and @linusyang. + +Suppose we have a VPS running Debian or Ubuntu. +To deploy the service quickly, we can use [docker][3]. + +## Install docker + +``` +$ curl -sSL https://get.docker.com/ | sh +$ docker --version +``` + +## Build docker image + +```bash +$ curl -sSL https://github.com/shadowsocks/shadowsocks-libev/raw/master/docker/alpine/Dockerfile | docker build -t shadowsocks-libev . +$ docker images +``` + +> You can also use a pre-built docker image: [vimagick/shadowsocks-libev][4] ![][5]. + +## Run docker container + +```bash +$ docker run -d -e METHOD=aes-256-cfb -e PASSWORD=9MLSpPmNt -p 8388:8388 --restart always shadowsocks-libev +$ docker ps +``` + +> :warning: Click [here][6] to generate a strong password to protect your server. + +## Use docker-compose to manage (optional) + +It is very handy to use [docker-compose][7] to manage docker containers. +You can download the binary at . + +This is a sample `docker-compose.yml` file. + +```yaml +shadowsocks: + image: shadowsocks-libev + ports: + - "8388:8388" + environment: + - METHOD=aes-256-cfb + - PASSWORD=9MLSpPmNt + restart: always +``` + +It is highly recommended that you setup a directory tree to make things easy to manage. + +```bash +$ mkdir -p ~/fig/shadowsocks/ +$ cd ~/fig/shadowsocks/ +$ curl -sSLO https://github.com/shadowsocks/shadowsocks-libev/raw/master/docker/alpine/docker-compose.yml +$ docker-compose up -d +$ docker-compose ps +``` + +## Finish + +At last, download shadowsocks client [here][8]. +Don't forget to share internet with your friends. + +```yaml +{ + "server": "your-vps-ip", + "server_port": 8388, + "local_address": "0.0.0.0", + "local_port": 1080, + "password": "9MLSpPmNt", + "timeout": 600, + "method": "aes-256-cfb" +} +``` + +[1]: https://github.com/shadowsocks/shadowsocks-libev +[2]: https://shadowsocks.org/en/index.html +[3]: https://github.com/docker/docker +[4]: https://hub.docker.com/r/vimagick/shadowsocks-libev/ +[5]: https://badge.imagelayers.io/vimagick/shadowsocks-libev:latest.svg +[6]: https://duckduckgo.com/?q=password+12&t=ffsb&ia=answer +[7]: https://github.com/docker/compose +[8]: https://shadowsocks.org/en/download/clients.html diff --git a/shadowsocksr-libev/src/docker/alpine/docker-compose.yml b/shadowsocksr-libev/src/docker/alpine/docker-compose.yml new file mode 100644 index 000000000..e545201b4 --- /dev/null +++ b/shadowsocksr-libev/src/docker/alpine/docker-compose.yml @@ -0,0 +1,9 @@ +shadowsocks: + image: shadowsocks-libev + ports: + - "8388:8388/tcp" + - "8388:8388/udp" + environment: + - METHOD=aes-256-cfb + - PASSWORD=9MLSpPmNt + restart: always diff --git a/shadowsocksr-libev/src/docker/ubuntu/Dockerfile b/shadowsocksr-libev/src/docker/ubuntu/Dockerfile new file mode 100644 index 000000000..12aa28404 --- /dev/null +++ b/shadowsocksr-libev/src/docker/ubuntu/Dockerfile @@ -0,0 +1,32 @@ +FROM ubuntu:latest + +MAINTAINER Sah Lee + +ENV DEPENDENCIES git-core build-essential autoconf libtool libssl-dev asciidoc xmlto +ENV BASEDIR /tmp/shadowsocks-libev +ENV SERVER_PORT 8338 + +# Set up building environment +RUN apt-get update \ + && apt-get install -y $DEPENDENCIES + +# Get the latest code, build and install +RUN git clone https://github.com/shadowsocks/shadowsocks-libev.git $BASEDIR +WORKDIR $BASEDIR +RUN ./configure \ + && make \ + && make install + +# Tear down building environment and delete git repository +WORKDIR / +RUN rm -rf $BASEDIR/shadowsocks-libev\ + && apt-get --purge autoremove -y $DEPENDENCIES + +# Port in the config file won't take affect. Instead we'll use 8388. +EXPOSE $SERVER_PORT +EXPOSE $SERVER_PORT/udp + +# Override the host and port in the config file. +ADD entrypoint / +ENTRYPOINT ["/entrypoint"] +CMD ["-h"] diff --git a/shadowsocksr-libev/src/docker/ubuntu/README.md b/shadowsocksr-libev/src/docker/ubuntu/README.md new file mode 100644 index 000000000..1ff5728af --- /dev/null +++ b/shadowsocksr-libev/src/docker/ubuntu/README.md @@ -0,0 +1,90 @@ +# Shadowsocks Dockerized + +## About this image + +This image is built to ease the deployment of the Shadowsocks server daemon with Docker. + +For Shadowsocks clients, you want to visit http://shadowsocks.org/en/download/clients.html + +### What is Shadowsocks + +A secure socks5 proxy designed to protect your Internet traffic. + +See http://shadowsocks.org/ + +### What is Docker + +An open platform for distributed applications for developers and sysadmins. + +See https://www.docker.com/ + +## How to use this image + +### Start the daemon for the first time + +```bash +$ docker run --name shadowsocks-app --detach --publish 58338:8338 shadowsocks/shadowsocks-libev -k "5ecret!" +``` + +To publish UDP port for DNS tunnelling, run + +```bash +$ docker run --name shadowsocks-app --detach --publish 58338:8338 --publish 58338:8338/udp shadowsocks/shadowsocks-libev -k "5ecret!" +``` + +To see all supported arguments, run + +```bash +$ docker run --rm shadowsocks/shadowsocks-libev --help +``` + +To try the bleeding edge version of Shadowsocks, run with an `unstable` tag + +```bash +$ docker run --name shadowsocks-app --detach --publish 58338:8338 shadowsocks/shadowsocks-libev:unstable -k "5ecret!" +``` + +### Stop the daemon + +```bash +$ docker stop shadowsocks-app +``` + +### Start a stopped daemon + +```bash +$ docker start shadowsocks-app +``` + +### Upgrade + +Simply run a `docker pull` to upgrade the image. + +```bash +$ docker pull shadowsocks/shadowsocks-libev +``` + +### Use in CoreOS + +COMING SOON + +### Use with `fig` + +COMING SOON + +## Limitations + +### JSON Configuration File + +This image doesn't support the JSON configuration at the moment. But I do plan to add the support in the future. So please stay tuned. + +### Specifying Hostname & Port + +Docker containers don't have the power to specify on what hostname or port of the host should the service listen to. These have to be specified using the `--publish` argument of `docker run`. + +See [Docker run reference](https://docs.docker.com/reference/run/#expose-incoming-ports) for more details. + +## References + +* [Shadowsocks - Servers](http://shadowsocks.org/en/download/servers.html) +* [shadowsocks-libev](https://github.com/shadowsocks/shadowsocks-libev/blob/master/README.md) diff --git a/shadowsocksr-libev/src/docker/ubuntu/entrypoint b/shadowsocksr-libev/src/docker/ubuntu/entrypoint new file mode 100644 index 000000000..275426f3d --- /dev/null +++ b/shadowsocksr-libev/src/docker/ubuntu/entrypoint @@ -0,0 +1,99 @@ +#! /bin/bash + +IMAGE_NAME="leesah/shadowsocks-libev" +PORTNUMBER="8338" + +SHADOWSOCKS="/usr/local/bin/ss-server" +HOST="-s 0.0.0.0" +PORT="-p $PORTNUMBER" +JSON="" + +function print_usage { + echo + echo "Usage:" + echo " docker run $IMAGE_NAME [OPTIONS]" + echo + echo "OPTIONS" + echo " -k password of your remote server" + echo + echo " [-m ] encrypt method: table, rc4, rc4-md5" + echo " aes-128-cfb, aes-192-cfb, aes-256-cfb," + echo " bf-cfb, camellia-128-cfb, camellia-192-cfb," + echo " camellia-256-cfb, cast5-cfb, des-cfb, idea-cfb," + echo " rc2-cfb, seed-cfb, salsa20 and chacha20" + echo " [-t ] socket timeout in seconds" + echo " [-c ] config file in json" + echo " [-u] enable udprelay mode" + echo " [-v] verbose mode" + echo + echo " [--fast-open] enable TCP fast open" + echo " [--acl ] config file of ACL \(Access Control List\)" + echo + echo " [-h] print this" + echo +} + +function print_usage_configfile { + echo "Config file is currently not supported by this image." + echo + echo "See https://github.com/leesah/shadowsocks-libev/issues/1 for current progress." + echo +} + +function print_usage_host { + echo "To specify the host on which ss-server should listen, please use" + echo " docker run -p $1::$PORTNUMBER ..." + echo "or" + echo " docker run -p $1::$PORTNUMBER ..." + echo + echo "See manpage of docker-run for more details:" + echo " man docker-run" + echo +} + +function print_usage_port { + echo "To specify the port on which ss-server should listen, please use" + echo " docker run -p $1:$PORTNUMBER ..." + echo +} + +OPTIONS=`getopt -o s:p:k:m:t:c:uvh --long server:,key:,password:,encrypt-method:,timeout:,acl:,server-port:,config-file:,fast-open,help -n "$IMAGE_NAME" -- "$@"` +if [ $? -ne 0 ]; then + print_usage + exit 1 +fi + +eval set -- "$OPTIONS" +while true; do + case "$1" in + -k|--key|--password) PASSWORD="-k $2"; shift 2;; + -m|--encrypt-method) ENCRYPTION="-m $2"; shift 2;; + -t|--timeout) TIMEOUT="-t $2"; shift 2;; + --acl) ACL="--acl $2"; shift 2;; + --fast-open) FAST_OPEN="--fast-open"; shift;; + -u) UDP_RELAY="-u"; shift;; + -v) VERBOSE="-v"; shift;; + --) shift; break;; + + -c|--config-file) print_usage_configfile; exit 128;; + -s|--server) print_usage_host "$2"; exit 128;; + -p|--server-port) print_usage_port "$2"; exit 128;; + -h|--help) print_usage; exit 0;; + + *) + echo "$IMAGE_NAME: unexpected argument: $1" + print_usage + exit 1;; + esac +done + +if [ -z "$HOST" -o -z "$PORT" -o -z "$PASSWORD" ]; then + echo "$IMAGE_NAME: insufficient arguments." + print_usage + exit 1 +fi + +echo "Launching Shadowsocks server..." +echo "To watch the output, run" +echo " docker ps -ql | xargs docker logs -f" +$SHADOWSOCKS $HOST $PORT $PASSWORD $ENCRYPTION $TIMEOUT $UDP_RELAY $VERBOSE $FAST_OPEN $ACL $JSON diff --git a/shadowsocksr-libev/src/libcork/.idea/libcork-develop.iml b/shadowsocksr-libev/src/libcork/.idea/libcork-develop.iml new file mode 100644 index 000000000..f08604bb6 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/.idea/libcork-develop.iml @@ -0,0 +1,2 @@ + + \ No newline at end of file diff --git a/shadowsocksr-libev/src/libcork/.idea/misc.xml b/shadowsocksr-libev/src/libcork/.idea/misc.xml new file mode 100644 index 000000000..f2978fc0e --- /dev/null +++ b/shadowsocksr-libev/src/libcork/.idea/misc.xml @@ -0,0 +1,9 @@ + + + + + + + + + \ No newline at end of file diff --git a/shadowsocksr-libev/src/libcork/.idea/modules.xml b/shadowsocksr-libev/src/libcork/.idea/modules.xml new file mode 100644 index 000000000..1794f0d25 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/.idea/modules.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/shadowsocksr-libev/src/libcork/.idea/workspace.xml b/shadowsocksr-libev/src/libcork/.idea/workspace.xml new file mode 100644 index 000000000..bba67c3f6 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/.idea/workspace.xml @@ -0,0 +1,693 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + ENABLE_SHARED + check + 错误：可见性属性在此配置下不受支持 + CORK_API + API + CORK_CONFIG_GCC_VERSION + cygwin + pthread_yield_np + sched_yield + environ + + + + + + + + + true + DEFINITION_ORDER + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + project + + + + + + + + + + + + + + + + + + + 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---------------------------------------------------------------------- +# Copyright © 2011-2015, RedJack, LLC. +# All rights reserved. +# +# Please see the COPYING file in this distribution for license details. +# ---------------------------------------------------------------------- + +cmake_minimum_required(VERSION 2.6) +set(PROJECT_NAME libcork) +set(RELEASE_DATE 2015-09-03) +project(${PROJECT_NAME}) + +set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake") +find_package(CTargets) + +#----------------------------------------------------------------------- +# Retrieve the current version number + +set(VERSION_MAJOR "0") +set(VERSION_MINOR "15") +set(VERSION_PATCH "0") +set(VERSION "0.15.0") +set(GIT_SHA1 "d6ecc2cfbcdf5013038a72b4544f7d9e6eb8f92d") + +#----------------------------------------------------------------------- +# Check for building on Tilera +# If the Tilera environment is installed, then $TILERA_ROOT is defined +# as the path to the active MDE. + +if(DEFINED ENV{TILERA_ROOT}) + set(TILERA TRUE) + set(TILERA_ROOT $ENV{TILERA_ROOT}) + message("-- Configuring for Tilera MDE ${TILERA_ROOT}") + set(ENV{PKG_CONFIG_PATH} + "${TILERA_ROOT}/tile/usr/lib/pkgconfig:${TILERA_ROOT}/tile/usr/local/lib/pkgconfig:$ENV{PKG_CONFIG_PATH}" + ) + set(CMAKE_SYSTEM_NAME "Tilera") + set(CMAKE_SYSTEM_PROCESSOR "tilegx") + set(CMAKE_C_COMPILER "${TILERA_ROOT}/bin/tile-gcc") + set(CMAKE_LINKER "${TILERA_ROOT}/bin/tile-ld") + set(TILERA_MONITOR "${TILERA_ROOT}/bin/tile-monitor") + #add_definitions(-std=gnu99) + set(CMAKE_FIND_ROOT_PATH "${TILERA_ROOT}/tile") + set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY) + set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) + set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) +endif() + +#----------------------------------------------------------------------- +# Set some options + +if(APPLE) + if (NOT CMAKE_INSTALL_NAME_DIR) + set(CMAKE_INSTALL_NAME_DIR "${CMAKE_INSTALL_PREFIX}/lib") + endif (NOT CMAKE_INSTALL_NAME_DIR) +endif(APPLE) + +if(NOT CMAKE_BUILD_TYPE) + set(CMAKE_BUILD_TYPE Release CACHE STRING + "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel." + FORCE) +endif(NOT CMAKE_BUILD_TYPE) + +if(CMAKE_C_COMPILER_ID STREQUAL "GNU") + add_definitions(-Wall -Werror) +elseif(CMAKE_C_COMPILER_ID STREQUAL "Clang") + add_definitions(-Wall -Werror) +elseif(CMAKE_C_COMPILER_ID STREQUAL "Intel") + add_definitions(-Wall -Werror) +endif(CMAKE_C_COMPILER_ID STREQUAL "GNU") + +include(GNUInstallDirs) + +#----------------------------------------------------------------------- +# Check for prerequisite libraries + +find_package(Threads) +set(THREADS_LDFLAGS "${CMAKE_THREAD_LIBS_INIT}") +if(WIN32) + if(CMAKE_THREAD_LIBS_INIT) + set(THREADS_STATIC_LDFLAGS "-static ${CMAKE_THREAD_LIBS_INIT}") + else() + set(THREADS_STATIC_LDFLAGS "-static") + endif() +else() + set(THREADS_STATIC_LDFLAGS "${CMAKE_THREAD_LIBS_INIT}") +endif() + + + +#----------------------------------------------------------------------- +# Include our subdirectories + +#add_subdirectory(include) +#add_subdirectory(src) + +add_c_library( + libcork + OUTPUT_NAME cork + PKGCONFIG_NAME libcork + VERSION 16.0.1 + SOURCES + cli/commands.c + core/allocator.c + core/error.c + core/gc.c + core/hash.c + core/ip-address.c + core/mempool.c + core/timestamp.c + core/u128.c + core/version.c + ds/array.c + ds/bitset.c + ds/buffer.c + ds/dllist.c + ds/file-stream.c + ds/hash-table.c + ds/managed-buffer.c + ds/ring-buffer.c + ds/slice.c +# posix/directory-walker.c +# posix/env.c +# posix/exec.c +# posix/files.c + posix/process.c +# posix/subprocess.c + pthreads/thread.c + LIBRARIES + threads +) + +set_target_properties(libcork PROPERTIES + COMPILE_DEFINITIONS CORK_API=CORK_LOCAL + ) + +set(libcork_include_dirs + ${PROJECT_SOURCE_DIR}/include + ${PROJECT_BINARY_DIR}/include + CACHE INTERNAL "libcork library" FORCE + ) \ No newline at end of file diff --git a/shadowsocksr-libev/src/libcork/COPYING b/shadowsocksr-libev/src/libcork/COPYING new file mode 100644 index 000000000..fb0120303 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/COPYING @@ -0,0 +1,30 @@ +Copyright © 2011-2012, RedJack, LLC. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + • Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + • Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + • Neither the name of RedJack Software, LLC nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. 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It's a “simple, easily embeddable, +cross-platform C library”. It falls roughly into the same category as +[glib](http://library.gnome.org/devel/glib/) or +[APR](http://apr.apache.org/) in the C world; the STL, +[POCO](http://pocoproject.org/), or [QtCore](http://qt.nokia.com/) +in the C++ world; or the standard libraries of any decent dynamic +language. + +So if libcork has all of these comparables, why a new library? Well, +none of the C++ options are really applicable here. And none of the C +options work, because one of the main goals is to have the library be +highly modular, and useful in resource-constrained systems. Once we +describe some of the design decisions that we've made in libcork, you'll +hopefully see how this fits into an interesting niche of its own. + +## Using libcork + +There are two primary ways to use libcork in your own software project: +as a _shared library_, or _embedded_. + +When you use libcork as a shared library, you install it just like you +would any other C library. We happen to use CMake as our build system, +so you follow the usual CMake recipe to install the library. (See the +[INSTALL](INSTALL) file for details.) All of the libcork code is +contained within a single shared library (called libcork.so, +libcork.dylib, or cork.dll, depending on the system). We also install a +pkg-config file that makes it easy to add the appropriate compiler flags +in your own build scripts. So, you use pkg-config to find libcork's +include and library files, link with libcork, and you're good to go. + +The alternative is to embed libcork into your own software project's +directory structure. In this case, your build scripts compile the +libcork source along with the rest of your code. This has some +advantages for resource-constrained systems, since (assuming your +compiler and linker are any good), you only include the libcork routines +that you actually use. And if your toolchain supports link-time +optimization, the libcork routines can be optimized into the rest of +your code. + +Which should you use? That's really up to you. Linking against the +shared library adds a runtime dependency, but gives you the usual +benefits of shared libraries: the library in memory is shared across +each program that uses it; you can install a single bug-fix update and +all libcork programs automatically take advantage of the new release; +etc. The embedding option is great if you really need to make your +library as small as possible, or if you don't want to add that runtime +dependency. + +## Design decisions + +Note that having libcork be **easily** embeddable has some ramifications +on the library's design. In particular, we don't want to make any +assumptions about which build system you're embedding libcork into. We +happen to use CMake, but you might be using autotools, waf, scons, or +any number of others. Most cross-platform libraries follow the +autotools model of performing some checks at compile time (maybe during +a separate “configure” phase, maybe not) to choose the right API +implementation for the current platform. Since we can't assume a build +system, we have to take a different approach, and do as many checks as +we can using the C preprocessor. Any check that we can't make in the +preprocessor has to be driven by a C preprocessor macro definition, +which you (the libcork user) are responsible for checking for and +defining. So we need to have as few of those as possible. diff --git a/shadowsocksr-libev/src/libcork/cli/commands.c b/shadowsocksr-libev/src/libcork/cli/commands.c new file mode 100644 index 000000000..f56207651 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/cli/commands.c @@ -0,0 +1,225 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#include +#include +#include + +#include "libcork/cli.h" +#include "libcork/core.h" +#include "libcork/ds.h" + + +#define streq(a,b) (strcmp((a), (b)) == 0) + +static struct cork_buffer breadcrumbs_buf = CORK_BUFFER_INIT(); + +static void +cork_command_add_breadcrumb(struct cork_command *command) +{ + cork_buffer_append_printf(&breadcrumbs_buf, " %s", command->name); +} + +#define cork_command_breadcrumbs() ((char *) breadcrumbs_buf.buf) + +static void +cork_command_run(struct cork_command *command, int argc, char **argv); + +static struct cork_command * +cork_command_set_get_subcommand(struct cork_command *command, + const char *command_name) +{ + struct cork_command **curr; + for (curr = command->set; *curr != NULL; curr++) { + if (streq(command_name, (*curr)->name)) { + return *curr; + } + } + return NULL; +} + +static void +cork_command_set_show_help(struct cork_command *command) +{ + size_t max_length = 0; + struct cork_command **curr; + + /* Calculate the length of the longest command name. */ + for (curr = command->set; *curr != NULL; curr++) { + size_t len = strlen((*curr)->name); + if (len > max_length) { + max_length = len; + } + } + + /* Then print out the available commands. */ + printf("Usage:%s []\n" + "\nAvailable commands:\n", + cork_command_breadcrumbs()); + + for (curr = command->set; *curr != NULL; curr++) { + printf(" %*s", (int) -max_length, (*curr)->name); + if ((*curr)->short_desc != NULL) { + printf(" %s\n", (*curr)->short_desc); + } else { + printf("\n"); + } + } +} + +static void +cork_command_leaf_show_help(struct cork_command *command) +{ + printf("Usage:%s", cork_command_breadcrumbs()); + if (command->usage_suffix != NULL) { + printf(" %s", command->usage_suffix); + } + if (command->full_help != NULL) { + printf("\n\n%s", command->full_help); + } else { + printf("\n"); + } +} + +void +cork_command_show_help(struct cork_command *command, const char *message) +{ + if (message != NULL) { + printf("%s\n", message); + } + + if (command->type == CORK_COMMAND_SET) { + cork_command_set_show_help(command); + } else if (command->type == CORK_LEAF_COMMAND) { + cork_command_leaf_show_help(command); + } +} + +static void +cork_command_set_run_help(struct cork_command *command, int argc, char **argv) +{ + /* When we see the help command when processing a command set, we use any + * remaining arguments to identifity which subcommand the user wants help + * with. */ + + /* Skip over the name of the command set */ + argc--; + argv++; + + while (argc > 0 && command->type == CORK_COMMAND_SET) { + struct cork_command *subcommand = + cork_command_set_get_subcommand(command, argv[0]); + if (subcommand == NULL) { + printf("Unknown command \"%s\".\n" + "Usage:%s []\n", + argv[0], cork_command_breadcrumbs()); + exit(EXIT_FAILURE); + } + + cork_command_add_breadcrumb(subcommand); + command = subcommand; + argc--; + argv++; + } + + cork_command_show_help(command, NULL); +} + +static void +cork_command_set_run(struct cork_command *command, int argc, char **argv) +{ + const char *command_name; + struct cork_command *subcommand; + + if (argc == 0) { + printf("No command given.\n"); + cork_command_set_show_help(command); + exit(EXIT_FAILURE); + } + + command_name = argv[0]; + + /* The "help" command is special. */ + if (streq(command_name, "help")) { + cork_command_set_run_help(command, argc, argv); + return; + } + + /* Otherwise look for a real subcommand with this name. */ + subcommand = cork_command_set_get_subcommand(command, command_name); + if (subcommand == NULL) { + printf("Unknown command \"%s\".\n" + "Usage:%s []\n", + command_name, cork_command_breadcrumbs()); + exit(EXIT_FAILURE); + } else { + cork_command_run(subcommand, argc, argv); + } +} + +static void +cork_command_leaf_run(struct cork_command *command, int argc, char **argv) +{ + command->run(argc, argv); +} + +static void +cork_command_cleanup(void) +{ + cork_buffer_done(&breadcrumbs_buf); +} + +static void +cork_command_run(struct cork_command *command, int argc, char **argv) +{ + cork_command_add_breadcrumb(command); + + /* If the gives the --help option at this point, describe the current + * command. */ + if (argc >= 2 && (streq(argv[1], "--help") || streq(argv[1], "-h"))) { + cork_command_show_help(command, NULL); + return; + } + + /* Otherwise let the command parse any options that occur here. */ + if (command->parse_options != NULL) { + int option_count = command->parse_options(argc, argv); + argc -= option_count; + argv += option_count; + } else { + argc--; + argv++; + } + + switch (command->type) { + case CORK_COMMAND_SET: + cork_command_set_run(command, argc, argv); + return; + + case CORK_LEAF_COMMAND: + cork_command_leaf_run(command, argc, argv); + return; + + default: + cork_unreachable(); + } +} + + +int +cork_command_main(struct cork_command *root, int argc, char **argv) +{ + /* Clean up after ourselves when the command finishes. */ + atexit(cork_command_cleanup); + + /* Run the root command. */ + cork_command_run(root, argc, argv); + return EXIT_SUCCESS; +} diff --git a/shadowsocksr-libev/src/libcork/cmake/FindCTargets.cmake b/shadowsocksr-libev/src/libcork/cmake/FindCTargets.cmake new file mode 100644 index 000000000..a260ffe73 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/cmake/FindCTargets.cmake @@ -0,0 +1,72 @@ +# -*- coding: utf-8 -*- +# ---------------------------------------------------------------------- +# Copyright © 2015, RedJack, LLC. +# All rights reserved. +# +# Please see the COPYING file in this distribution for license details. +# ---------------------------------------------------------------------- + + +#----------------------------------------------------------------------- +# Library, with options to build both shared and static versions + +function(target_add_static_libraries TARGET_NAME LIBRARIES LOCAL_LIBRARIES) + foreach(lib ${LIBRARIES}) + string(REPLACE "-" "_" lib ${lib}) + string(TOUPPER ${lib} upperlib) + target_link_libraries( + ${TARGET_NAME} + ${${upperlib}_STATIC_LDFLAGS} + ) + endforeach(lib) + foreach(lib ${LOCAL_LIBRARIES}) + target_link_libraries(${TARGET_NAME} ${lib}) + endforeach(lib) +endfunction(target_add_static_libraries) + +set_property(GLOBAL PROPERTY ALL_LOCAL_LIBRARIES "") + +function(add_c_library __TARGET_NAME) + set(options) + set(one_args OUTPUT_NAME PKGCONFIG_NAME VERSION) + set(multi_args LIBRARIES LOCAL_LIBRARIES SOURCES) + cmake_parse_arguments(_ "${options}" "${one_args}" "${multi_args}" ${ARGN}) + + if (__VERSION MATCHES "^([0-9]+)\\.([0-9]+)\\.([0-9]+)(-dev)?$") + set(__VERSION_CURRENT "${CMAKE_MATCH_1}") + set(__VERSION_REVISION "${CMAKE_MATCH_2}") + set(__VERSION_AGE "${CMAKE_MATCH_3}") + else (__VERSION MATCHES "^([0-9]+)\\.([0-9]+)\\.([0-9]+)(-dev)?$") + message(FATAL_ERROR "Invalid library version number: ${__VERSION}") + endif (__VERSION MATCHES "^([0-9]+)\\.([0-9]+)\\.([0-9]+)(-dev)?$") + + math(EXPR __SOVERSION "${__VERSION_CURRENT} - ${__VERSION_AGE}") + + get_property(ALL_LOCAL_LIBRARIES GLOBAL PROPERTY ALL_LOCAL_LIBRARIES) + list(APPEND ALL_LOCAL_LIBRARIES ${__TARGET_NAME}) + set_property(GLOBAL PROPERTY ALL_LOCAL_LIBRARIES "${ALL_LOCAL_LIBRARIES}") + + include_directories( + ${PROJECT_SOURCE_DIR}/include + ${PROJECT_BINARY_DIR}/include + ) + add_library(${__TARGET_NAME} STATIC ${__SOURCES}) + + set_target_properties( + ${__TARGET_NAME} PROPERTIES + OUTPUT_NAME ${__OUTPUT_NAME} + CLEAN_DIRECT_OUTPUT 1 + ) + + target_include_directories( + ${__TARGET_NAME} PUBLIC + ${CMAKE_SOURCE_DIR}/include + ${CMAKE_BINARY_DIR}/include + ) + + target_add_static_libraries( + ${__TARGET_NAME} + "${__LIBRARIES}" + "${__LOCAL_LIBRARIES}" + ) +endfunction(add_c_library) diff --git a/shadowsocksr-libev/src/libcork/core/allocator.c b/shadowsocksr-libev/src/libcork/core/allocator.c new file mode 100644 index 000000000..9a2ad0581 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/core/allocator.c @@ -0,0 +1,421 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include +#include +#include + +#include "libcork/core/allocator.h" +#include "libcork/core/attributes.h" +#include "libcork/core/error.h" +#include "libcork/core/types.h" +#include "libcork/os/process.h" + + +/*----------------------------------------------------------------------- + * Allocator interface + */ + +struct cork_alloc_priv { + struct cork_alloc public; + struct cork_alloc_priv *next; +}; + +static void * +cork_alloc__default_calloc(const struct cork_alloc *alloc, + size_t count, size_t size) +{ + void *result = cork_alloc_xcalloc(alloc, count, size); + if (CORK_UNLIKELY(result == NULL)) { + abort(); + } + return result; +} + +static void * +cork_alloc__default_malloc(const struct cork_alloc *alloc, size_t size) +{ + void *result = cork_alloc_xmalloc(alloc, size); + if (CORK_UNLIKELY(result == NULL)) { + abort(); + } + return result; +} + +static void * +cork_alloc__default_realloc(const struct cork_alloc *alloc, void *ptr, + size_t old_size, size_t new_size) +{ + void *result = cork_alloc_xrealloc(alloc, ptr, old_size, new_size); + if (CORK_UNLIKELY(result == NULL)) { + abort(); + } + return result; +} + +static void * +cork_alloc__default_xcalloc(const struct cork_alloc *alloc, + size_t count, size_t size) +{ + void *result; + assert(count < (SIZE_MAX / size)); + result = cork_alloc_xmalloc(alloc, count * size); + if (result != NULL) { + memset(result, 0, count * size); + } + return result; +} + +static void * +cork_alloc__default_xmalloc(const struct cork_alloc *alloc, size_t size) +{ + cork_abort("%s isn't defined", "cork_alloc:xmalloc"); +} + +static void * +cork_alloc__default_xrealloc(const struct cork_alloc *alloc, void *ptr, + size_t old_size, size_t new_size) +{ + void *result = cork_alloc_xmalloc(alloc, new_size); + if (CORK_LIKELY(result != NULL) && ptr != NULL) { + size_t min_size = (new_size < old_size)? new_size: old_size; + memcpy(result, ptr, min_size); + cork_alloc_free(alloc, ptr, old_size); + } + return result; +} + +static void +cork_alloc__default_free(const struct cork_alloc *alloc, void *ptr, size_t size) +{ + cork_abort("%s isn't defined", "cork_alloc:free"); +} + +static bool cleanup_registered = false; +static struct cork_alloc_priv *all_allocs = NULL; + +static void +cork_alloc_free_alloc(struct cork_alloc_priv *alloc) +{ + cork_free_user_data(&alloc->public); + cork_alloc_delete(alloc->public.parent, struct cork_alloc_priv, alloc); +} + +static void +cork_alloc_free_all(void) +{ + struct cork_alloc_priv *curr; + struct cork_alloc_priv *next; + for (curr = all_allocs; curr != NULL; curr = next) { + next = curr->next; + cork_alloc_free_alloc(curr); + } +} + +static void +cork_alloc_register_cleanup(void) +{ + if (CORK_UNLIKELY(!cleanup_registered)) { + /* We don't use cork_cleanup because that requires the allocators to + * have already been set up! (atexit calls its functions in reverse + * order, and this one will be registered before cork_cleanup's, which + * makes it safe for cork_cleanup functions to still use the allocator, + * since the allocator atexit function will be called last.) */ + atexit(cork_alloc_free_all); + cleanup_registered = true; + } +} + +struct cork_alloc * +cork_alloc_new_alloc(const struct cork_alloc *parent) +{ + struct cork_alloc_priv *alloc = + cork_alloc_new(parent, struct cork_alloc_priv); + alloc->public.parent = parent; + alloc->public.user_data = NULL; + alloc->public.free_user_data = NULL; + alloc->public.calloc = cork_alloc__default_calloc; + alloc->public.malloc = cork_alloc__default_malloc; + alloc->public.realloc = cork_alloc__default_realloc; + alloc->public.xcalloc = cork_alloc__default_xcalloc; + alloc->public.xmalloc = cork_alloc__default_xmalloc; + alloc->public.xrealloc = cork_alloc__default_xrealloc; + alloc->public.free = cork_alloc__default_free; + + cork_alloc_register_cleanup(); + alloc->next = all_allocs; + all_allocs = alloc; + + return &alloc->public; +} + + +void +cork_alloc_set_user_data(struct cork_alloc *alloc, + void *user_data, cork_free_f free_user_data) +{ + cork_free_user_data(alloc); + alloc->user_data = user_data; + alloc->free_user_data = free_user_data; +} + +void +cork_alloc_set_calloc(struct cork_alloc *alloc, cork_alloc_calloc_f calloc) +{ + alloc->calloc = calloc; +} + +void +cork_alloc_set_malloc(struct cork_alloc *alloc, cork_alloc_malloc_f malloc) +{ + alloc->malloc = malloc; +} + +void +cork_alloc_set_realloc(struct cork_alloc *alloc, cork_alloc_realloc_f realloc) +{ + alloc->realloc = realloc; +} + +void +cork_alloc_set_xcalloc(struct cork_alloc *alloc, cork_alloc_calloc_f xcalloc) +{ + alloc->xcalloc = xcalloc; +} + +void +cork_alloc_set_xmalloc(struct cork_alloc *alloc, cork_alloc_malloc_f xmalloc) +{ + alloc->xmalloc = xmalloc; +} + +void +cork_alloc_set_xrealloc(struct cork_alloc *alloc, + cork_alloc_realloc_f xrealloc) +{ + alloc->xrealloc = xrealloc; +} + +void +cork_alloc_set_free(struct cork_alloc *alloc, cork_alloc_free_f free) +{ + alloc->free = free; +} + + +/*----------------------------------------------------------------------- + * Allocating strings + */ + +static inline const char * +strndup_internal(const struct cork_alloc *alloc, + const char *str, size_t len) +{ + char *dest; + size_t allocated_size = len + sizeof(size_t) + 1; + size_t *new_str = cork_alloc_malloc(alloc, allocated_size); + *new_str = allocated_size; + dest = (char *) (void *) (new_str + 1); + memcpy(dest, str, len); + dest[len] = '\0'; + return dest; +} + +const char * +cork_alloc_strdup(const struct cork_alloc *alloc, const char *str) +{ + return strndup_internal(alloc, str, strlen(str)); +} + +const char * +cork_alloc_strndup(const struct cork_alloc *alloc, + const char *str, size_t size) +{ + return strndup_internal(alloc, str, size); +} + +static inline const char * +xstrndup_internal(const struct cork_alloc *alloc, + const char *str, size_t len) +{ + size_t allocated_size = len + sizeof(size_t) + 1; + size_t *new_str = cork_alloc_xmalloc(alloc, allocated_size); + if (CORK_UNLIKELY(new_str == NULL)) { + return NULL; + } else { + char *dest; + *new_str = allocated_size; + dest = (char *) (void *) (new_str + 1); + memcpy(dest, str, len); + dest[len] = '\0'; + return dest; + } +} + +const char * +cork_alloc_xstrdup(const struct cork_alloc *alloc, const char *str) +{ + return xstrndup_internal(alloc, str, strlen(str)); +} + +const char * +cork_alloc_xstrndup(const struct cork_alloc *alloc, + const char *str, size_t size) +{ + return xstrndup_internal(alloc, str, size); +} + +void +cork_alloc_strfree(const struct cork_alloc *alloc, const char *str) +{ + size_t *base = ((size_t *) str) - 1; + cork_alloc_free(alloc, base, *base); +} + + +/*----------------------------------------------------------------------- + * stdlib allocator + */ + +static void * +cork_stdlib_alloc__calloc(const struct cork_alloc *alloc, + size_t count, size_t size) +{ + void *result = calloc(count, size); + if (CORK_UNLIKELY(result == NULL)) { + abort(); + } + return result; +} + +static void * +cork_stdlib_alloc__malloc(const struct cork_alloc *alloc, size_t size) +{ + void *result = malloc(size); + if (CORK_UNLIKELY(result == NULL)) { + abort(); + } + return result; +} + +static void * +cork_stdlib_alloc__realloc(const struct cork_alloc *alloc, void *ptr, + size_t old_size, size_t new_size) +{ + /* Technically we don't really need to free `ptr` if the reallocation fails, + * since we'll abort the process immediately after. But my sense of + * cleanliness makes me do it anyway. */ + +#if CORK_HAVE_REALLOCF + void *result = reallocf(ptr, new_size); + if (result == NULL) { + abort(); + } + return result; +#else + void *result = realloc(ptr, new_size); + if (result == NULL) { + free(ptr); + abort(); + } + return result; +#endif +} + +static void * +cork_stdlib_alloc__xcalloc(const struct cork_alloc *alloc, + size_t count, size_t size) +{ + return calloc(count, size); +} + +static void * +cork_stdlib_alloc__xmalloc(const struct cork_alloc *alloc, size_t size) +{ + return malloc(size); +} + +static void * +cork_stdlib_alloc__xrealloc(const struct cork_alloc *alloc, void *ptr, + size_t old_size, size_t new_size) +{ + return realloc(ptr, new_size); +} + +static void +cork_stdlib_alloc__free(const struct cork_alloc *alloc, void *ptr, size_t size) +{ + free(ptr); +} + + +static const struct cork_alloc default_allocator = { + NULL, + NULL, + NULL, + cork_stdlib_alloc__calloc, + cork_stdlib_alloc__malloc, + cork_stdlib_alloc__realloc, + cork_stdlib_alloc__xcalloc, + cork_stdlib_alloc__xmalloc, + cork_stdlib_alloc__xrealloc, + cork_stdlib_alloc__free +}; + + +/*----------------------------------------------------------------------- + * Customizing libcork's allocator + */ + +const struct cork_alloc *cork_allocator = &default_allocator; + +void +cork_set_allocator(const struct cork_alloc *alloc) +{ + cork_allocator = alloc; +} + + +/*----------------------------------------------------------------------- + * Debugging allocator + */ + +static void * +cork_debug_alloc__xmalloc(const struct cork_alloc *alloc, size_t size) +{ + size_t real_size = size + sizeof(size_t); + size_t *base = cork_alloc_xmalloc(alloc->parent, real_size); + *base = size; + return base + 1; +} + +static void +cork_debug_alloc__free(const struct cork_alloc *alloc, void *ptr, + size_t expected_size) +{ + size_t *base = ((size_t *) ptr) - 1; + size_t actual_size = *base; + size_t real_size = actual_size + sizeof(size_t); + if (CORK_UNLIKELY(actual_size != expected_size)) { + cork_abort + ("Incorrect size when freeing pointer (got %zu, expected %zu)", + expected_size, actual_size); + } + cork_alloc_free(alloc->parent, base, real_size); +} + +struct cork_alloc * +cork_debug_alloc_new(const struct cork_alloc *parent) +{ + struct cork_alloc *debug = cork_alloc_new_alloc(parent); + cork_alloc_set_xmalloc(debug, cork_debug_alloc__xmalloc); + cork_alloc_set_free(debug, cork_debug_alloc__free); + return debug; +} diff --git a/shadowsocksr-libev/src/libcork/core/error.c b/shadowsocksr-libev/src/libcork/core/error.c new file mode 100644 index 000000000..114a09058 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/core/error.c @@ -0,0 +1,246 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include +#include +#include + +#include "libcork/config.h" +#include "libcork/core/allocator.h" +#include "libcork/core/error.h" +#include "libcork/ds/buffer.h" +#include "libcork/os/process.h" +#include "libcork/threads/basics.h" + + +/*----------------------------------------------------------------------- + * Life cycle + */ + +struct cork_error { + cork_error code; + struct cork_buffer *message; + struct cork_buffer *other; + struct cork_buffer buf1; + struct cork_buffer buf2; + struct cork_error *next; +}; + +static struct cork_error * +cork_error_new(void) +{ + struct cork_error *error = cork_new(struct cork_error); + error->code = CORK_ERROR_NONE; + cork_buffer_init(&error->buf1); + cork_buffer_init(&error->buf2); + error->message = &error->buf1; + error->other = &error->buf2; + return error; +} + +static void +cork_error_free(struct cork_error *error) +{ + cork_buffer_done(&error->buf1); + cork_buffer_done(&error->buf2); + cork_delete(struct cork_error, error); +} + + +static struct cork_error * volatile errors; + +cork_once_barrier(cork_error_list); + +static void +cork_error_list_done(void) +{ + struct cork_error *curr; + struct cork_error *next; + for (curr = errors; curr != NULL; curr = next) { + next = curr->next; + cork_error_free(curr); + } +} + +static void +cork_error_list_init(void) +{ + cork_cleanup_at_exit(0, cork_error_list_done); +} + + +cork_tls(struct cork_error *, cork_error_); + +static struct cork_error * +cork_error_get(void) +{ + struct cork_error **error_ptr = cork_error__get(); + if (CORK_UNLIKELY(*error_ptr == NULL)) { + struct cork_error *old_head; + struct cork_error *error = cork_error_new(); + cork_once(cork_error_list, cork_error_list_init()); + do { + old_head = errors; + error->next = old_head; + } while (cork_ptr_cas(&errors, old_head, error) != old_head); + *error_ptr = error; + return error; + } else { + return *error_ptr; + } +} + + +/*----------------------------------------------------------------------- + * Public error API + */ + +bool +cork_error_occurred(void) +{ + struct cork_error *error = cork_error_get(); + return error->code != CORK_ERROR_NONE; +} + +cork_error +cork_error_code(void) +{ + struct cork_error *error = cork_error_get(); + return error->code; +} + +const char * +cork_error_message(void) +{ + struct cork_error *error = cork_error_get(); + return error->message->buf; +} + +void +cork_error_clear(void) +{ + struct cork_error *error = cork_error_get(); + error->code = CORK_ERROR_NONE; + cork_buffer_clear(error->message); +} + +void +cork_error_set_printf(cork_error code, const char *format, ...) +{ + va_list args; + struct cork_error *error = cork_error_get(); + error->code = code; + va_start(args, format); + cork_buffer_vprintf(error->message, format, args); + va_end(args); +} + +void +cork_error_set_string(cork_error code, const char *str) +{ + struct cork_error *error = cork_error_get(); + error->code = code; + cork_buffer_set_string(error->message, str); +} + +void +cork_error_set_vprintf(cork_error code, const char *format, va_list args) +{ + struct cork_error *error = cork_error_get(); + error->code = code; + cork_buffer_vprintf(error->message, format, args); +} + +void +cork_error_prefix_printf(const char *format, ...) +{ + va_list args; + struct cork_error *error = cork_error_get(); + struct cork_buffer *temp; + va_start(args, format); + cork_buffer_vprintf(error->other, format, args); + va_end(args); + cork_buffer_append_copy(error->other, error->message); + temp = error->other; + error->other = error->message; + error->message = temp; +} + +void +cork_error_prefix_string(const char *str) +{ + struct cork_error *error = cork_error_get(); + struct cork_buffer *temp; + cork_buffer_set_string(error->other, str); + cork_buffer_append_copy(error->other, error->message); + temp = error->other; + error->other = error->message; + error->message = temp; +} + +void +cork_error_prefix_vprintf(const char *format, va_list args) +{ + struct cork_error *error = cork_error_get(); + struct cork_buffer *temp; + cork_buffer_vprintf(error->other, format, args); + cork_buffer_append_copy(error->other, error->message); + temp = error->other; + error->other = error->message; + error->message = temp; +} + + +/*----------------------------------------------------------------------- + * Deprecated + */ + +void +cork_error_set(uint32_t error_class, unsigned int error_code, + const char *format, ...) +{ + /* Create a fallback error code that's most likely not very useful. */ + va_list args; + va_start(args, format); + cork_error_set_vprintf(error_class + error_code, format, args); + va_end(args); +} + +void +cork_error_prefix(const char *format, ...) +{ + va_list args; + va_start(args, format); + cork_error_prefix_vprintf(format, args); + va_end(args); +} + + +/*----------------------------------------------------------------------- + * Built-in errors + */ + +void +cork_system_error_set_explicit(int err) +{ + cork_error_set_string(err, strerror(err)); +} + +void +cork_system_error_set(void) +{ + cork_error_set_string(errno, strerror(errno)); +} + +void +cork_unknown_error_set_(const char *location) +{ + cork_error_set_printf(CORK_UNKNOWN_ERROR, "Unknown error in %s", location); +} diff --git a/shadowsocksr-libev/src/libcork/core/gc.c b/shadowsocksr-libev/src/libcork/core/gc.c new file mode 100644 index 000000000..d16562d7a --- /dev/null +++ b/shadowsocksr-libev/src/libcork/core/gc.c @@ -0,0 +1,406 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include + +#include "libcork/config/config.h" +#include "libcork/core/allocator.h" +#include "libcork/core/gc.h" +#include "libcork/core/types.h" +#include "libcork/ds/dllist.h" +#include "libcork/threads/basics.h" + + +#if !defined(CORK_DEBUG_GC) +#define CORK_DEBUG_GC 0 +#endif + +#if CORK_DEBUG_GC +#include +#define DEBUG(...) fprintf(stderr, __VA_ARGS__) +#else +#define DEBUG(...) /* no debug messages */ +#endif + + +/*----------------------------------------------------------------------- + * GC context life cycle + */ + +#define ROOTS_SIZE 1024 + +/* An internal structure allocated with every garbage-collected object. */ +struct cork_gc_header; + +/* A garbage collector context. */ +struct cork_gc { + /* The number of used entries in roots. */ + size_t root_count; + /* The possible roots of garbage cycles */ + struct cork_gc_header *roots[ROOTS_SIZE]; +}; + +cork_tls(struct cork_gc, cork_gc); + +static void +cork_gc_collect_cycles(struct cork_gc *gc); + + +/*----------------------------------------------------------------------- + * Garbage collection functions + */ + +struct cork_gc_header { + /* The current reference count for this object, along with its color + * during the mark/sweep process. */ + volatile int ref_count_color; + + /* The allocated size of this garbage-collected object (including + * the header). */ + size_t allocated_size; + + /* The garbage collection interface for this object. */ + struct cork_gc_obj_iface *iface; +}; + +/* + * Structure of ref_count_color: + * + * +-----+---+---+---+---+---+ + * | ... | 4 | 3 | 2 | 1 | 0 | + * +-----+---+---+---+---+---+ + * ref_count | color + * | + * buffered --/ + */ + +#define cork_gc_ref_count_color(count, buffered, color) \ + (((count) << 3) | ((buffered) << 2) | (color)) + +#define cork_gc_get_ref_count(hdr) \ + ((hdr)->ref_count_color >> 3) + +#define cork_gc_inc_ref_count(hdr) \ + do { \ + (hdr)->ref_count_color += (1 << 3); \ + } while (0) + +#define cork_gc_dec_ref_count(hdr) \ + do { \ + (hdr)->ref_count_color -= (1 << 3); \ + } while (0) + +#define cork_gc_get_color(hdr) \ + ((hdr)->ref_count_color & 0x3) + +#define cork_gc_set_color(hdr, color) \ + do { \ + (hdr)->ref_count_color = \ + ((hdr)->ref_count_color & ~0x3) | (color & 0x3); \ + } while (0) + +#define cork_gc_get_buffered(hdr) \ + (((hdr)->ref_count_color & 0x4) != 0) + +#define cork_gc_set_buffered(hdr, buffered) \ + do { \ + (hdr)->ref_count_color = \ + ((hdr)->ref_count_color & ~0x4) | (((buffered) & 1) << 2); \ + } while (0) + +#define cork_gc_free(hdr) \ + do { \ + if ((hdr)->iface->free != NULL) { \ + (hdr)->iface->free(cork_gc_get_object((hdr))); \ + } \ + cork_free((hdr), (hdr)->allocated_size); \ + } while (0) + +#define cork_gc_recurse(gc, hdr, recurser) \ + do { \ + if ((hdr)->iface->recurse != NULL) { \ + (hdr)->iface->recurse \ + ((gc), cork_gc_get_object((hdr)), (recurser), NULL); \ + } \ + } while (0) + +enum cork_gc_color { + /* In use or free */ + GC_BLACK = 0, + /* Possible member of garbage cycle */ + GC_GRAY = 1, + /* Member of garbage cycle */ + GC_WHITE = 2, + /* Possible root of garbage cycle */ + GC_PURPLE = 3 +}; + +#define cork_gc_get_header(obj) \ + (((struct cork_gc_header *) (obj)) - 1) + +#define cork_gc_get_object(hdr) \ + ((void *) (((struct cork_gc_header *) (hdr)) + 1)) + + +void +cork_gc_init(void) +{ + cork_gc_get(); +} + +void +cork_gc_done(void) +{ + cork_gc_collect_cycles(cork_gc_get()); +} + +void * +cork_gc_alloc(size_t instance_size, struct cork_gc_obj_iface *iface) +{ + size_t full_size = instance_size + sizeof(struct cork_gc_header); + DEBUG("Allocating %zu (%zu) bytes\n", instance_size, full_size); + struct cork_gc_header *header = cork_malloc(full_size); + DEBUG(" Result is %p[%p]\n", cork_gc_get_object(header), header); + header->ref_count_color = cork_gc_ref_count_color(1, false, GC_BLACK); + header->allocated_size = full_size; + header->iface = iface; + return cork_gc_get_object(header); +} + +void * +cork_gc_incref(void *obj) +{ + if (obj != NULL) { + struct cork_gc_header *header = cork_gc_get_header(obj); + cork_gc_inc_ref_count(header); + DEBUG("Incrementing %p -> %d\n", + obj, cork_gc_get_ref_count(header)); + cork_gc_set_color(header, GC_BLACK); + } + return obj; +} + +static void +cork_gc_decref_step(struct cork_gc *gc, void *obj, void *ud); + +static void +cork_gc_release(struct cork_gc *gc, struct cork_gc_header *header) +{ + cork_gc_recurse(gc, header, cork_gc_decref_step); + cork_gc_set_color(header, GC_BLACK); + if (!cork_gc_get_buffered(header)) { + cork_gc_free(header); + } +} + +static void +cork_gc_possible_root(struct cork_gc *gc, struct cork_gc_header *header) +{ + if (cork_gc_get_color(header) != GC_PURPLE) { + DEBUG(" Possible garbage cycle root\n"); + cork_gc_set_color(header, GC_PURPLE); + if (!cork_gc_get_buffered(header)) { + cork_gc_set_buffered(header, true); + if (gc->root_count >= ROOTS_SIZE) { + cork_gc_collect_cycles(gc); + } + gc->roots[gc->root_count++] = header; + } + } else { + DEBUG(" Already marked as possible garbage cycle root\n"); + } +} + +static void +cork_gc_decref_step(struct cork_gc *gc, void *obj, void *ud) +{ + if (obj != NULL) { + struct cork_gc_header *header = cork_gc_get_header(obj); + cork_gc_dec_ref_count(header); + DEBUG("Decrementing %p -> %d\n", + obj, cork_gc_get_ref_count(header)); + if (cork_gc_get_ref_count(header) == 0) { + DEBUG(" Releasing %p\n", header); + cork_gc_release(gc, header); + } else { + cork_gc_possible_root(gc, header); + } + } +} + +void +cork_gc_decref(void *obj) +{ + if (obj != NULL) { + struct cork_gc *gc = cork_gc_get(); + struct cork_gc_header *header = cork_gc_get_header(obj); + cork_gc_dec_ref_count(header); + DEBUG("Decrementing %p -> %d\n", + obj, cork_gc_get_ref_count(header)); + if (cork_gc_get_ref_count(header) == 0) { + DEBUG(" Releasing %p\n", header); + cork_gc_release(gc, header); + } else { + cork_gc_possible_root(gc, header); + } + } +} + + +static void +cork_gc_mark_gray_step(struct cork_gc *gc, void *obj, void *ud); + +static void +cork_gc_mark_gray(struct cork_gc *gc, struct cork_gc_header *header) +{ + if (cork_gc_get_color(header) != GC_GRAY) { + DEBUG(" Setting color to gray\n"); + cork_gc_set_color(header, GC_GRAY); + cork_gc_recurse(gc, header, cork_gc_mark_gray_step); + } +} + +static void +cork_gc_mark_gray_step(struct cork_gc *gc, void *obj, void *ud) +{ + if (obj != NULL) { + DEBUG(" cork_gc_mark_gray(%p)\n", obj); + struct cork_gc_header *header = cork_gc_get_header(obj); + cork_gc_dec_ref_count(header); + DEBUG(" Reference count now %d\n", cork_gc_get_ref_count(header)); + cork_gc_mark_gray(gc, header); + } +} + +static void +cork_gc_mark_roots(struct cork_gc *gc) +{ + size_t i; + for (i = 0; i < gc->root_count; i++) { + struct cork_gc_header *header = gc->roots[i]; + if (cork_gc_get_color(header) == GC_PURPLE) { + DEBUG(" Checking possible garbage cycle root %p\n", + cork_gc_get_object(header)); + DEBUG(" cork_gc_mark_gray(%p)\n", + cork_gc_get_object(header)); + cork_gc_mark_gray(gc, header); + } else { + DEBUG(" Possible garbage cycle root %p already checked\n", + cork_gc_get_object(header)); + cork_gc_set_buffered(header, false); + gc->roots[i] = NULL; + if (cork_gc_get_color(header) == GC_BLACK && + cork_gc_get_ref_count(header) == 0) { + DEBUG(" Freeing %p\n", header); + cork_gc_free(header); + } + } + } +} + +static void +cork_gc_scan_black_step(struct cork_gc *gc, void *obj, void *ud); + +static void +cork_gc_scan_black(struct cork_gc *gc, struct cork_gc_header *header) +{ + DEBUG(" Setting color of %p to BLACK\n", + cork_gc_get_object(header)); + cork_gc_set_color(header, GC_BLACK); + cork_gc_recurse(gc, header, cork_gc_scan_black_step); +} + +static void +cork_gc_scan_black_step(struct cork_gc *gc, void *obj, void *ud) +{ + if (obj != NULL) { + struct cork_gc_header *header = cork_gc_get_header(obj); + cork_gc_inc_ref_count(header); + DEBUG(" Increasing reference count %p -> %d\n", + obj, cork_gc_get_ref_count(header)); + if (cork_gc_get_color(header) != GC_BLACK) { + cork_gc_scan_black(gc, header); + } + } +} + +static void +cork_gc_scan(struct cork_gc *gc, void *obj, void *ud) +{ + if (obj != NULL) { + DEBUG(" Scanning possible garbage cycle entry %p\n", obj); + struct cork_gc_header *header = cork_gc_get_header(obj); + if (cork_gc_get_color(header) == GC_GRAY) { + if (cork_gc_get_ref_count(header) > 0) { + DEBUG(" Remaining references; can't be a cycle\n"); + cork_gc_scan_black(gc, header); + } else { + DEBUG(" Definitely a garbage cycle\n"); + cork_gc_set_color(header, GC_WHITE); + cork_gc_recurse(gc, header, cork_gc_scan); + } + } else { + DEBUG(" Already checked\n"); + } + } +} + +static void +cork_gc_scan_roots(struct cork_gc *gc) +{ + size_t i; + for (i = 0; i < gc->root_count; i++) { + if (gc->roots[i] != NULL) { + void *obj = cork_gc_get_object(gc->roots[i]); + cork_gc_scan(gc, obj, NULL); + } + } +} + +static void +cork_gc_collect_white(struct cork_gc *gc, void *obj, void *ud) +{ + if (obj != NULL) { + struct cork_gc_header *header = cork_gc_get_header(obj); + if (cork_gc_get_color(header) == GC_WHITE && + !cork_gc_get_buffered(header)) { + DEBUG(" Releasing %p\n", obj); + cork_gc_set_color(header, GC_BLACK); + cork_gc_recurse(gc, header, cork_gc_collect_white); + DEBUG(" Freeing %p\n", header); + cork_gc_free(header); + } + } +} + +static void +cork_gc_collect_roots(struct cork_gc *gc) +{ + size_t i; + for (i = 0; i < gc->root_count; i++) { + if (gc->roots[i] != NULL) { + struct cork_gc_header *header = gc->roots[i]; + void *obj = cork_gc_get_object(header); + cork_gc_set_buffered(header, false); + DEBUG("Collecting cycles from garbage root %p\n", obj); + cork_gc_collect_white(gc, obj, NULL); + gc->roots[i] = NULL; + } + } + gc->root_count = 0; +} + +static void +cork_gc_collect_cycles(struct cork_gc *gc) +{ + DEBUG("Collecting garbage cycles\n"); + cork_gc_mark_roots(gc); + cork_gc_scan_roots(gc); + cork_gc_collect_roots(gc); +} diff --git a/shadowsocksr-libev/src/libcork/core/hash.c b/shadowsocksr-libev/src/libcork/core/hash.c new file mode 100644 index 000000000..79b582489 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/core/hash.c @@ -0,0 +1,20 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#define CORK_HASH_ATTRIBUTES CORK_API + +#include "libcork/core/hash.h" +#include "libcork/core/types.h" + +/* All of the following functions will be defined for us by libcork/core/hash.h: + * cork_hash_buffer + * cork_big_hash_buffer + * cork_stable_hash_buffer + */ diff --git a/shadowsocksr-libev/src/libcork/core/ip-address.c b/shadowsocksr-libev/src/libcork/core/ip-address.c new file mode 100644 index 000000000..6ad95fb28 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/core/ip-address.c @@ -0,0 +1,536 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include + +#include "libcork/core/byte-order.h" +#include "libcork/core/error.h" +#include "libcork/core/net-addresses.h" +#include "libcork/core/types.h" + +#ifndef CORK_IP_ADDRESS_DEBUG +#define CORK_IP_ADDRESS_DEBUG 0 +#endif + +#if CORK_IP_ADDRESS_DEBUG +#include +#define DEBUG(...) \ + do { \ + fprintf(stderr, __VA_ARGS__); \ + } while (0) +#else +#define DEBUG(...) /* nothing */ +#endif + + +/*----------------------------------------------------------------------- + * IP addresses + */ + +/*** IPv4 ***/ + +static inline const char * +cork_ipv4_parse(struct cork_ipv4 *addr, const char *str) +{ + const char *ch; + bool seen_digit_in_octet = false; + unsigned int octets = 0; + unsigned int digit = 0; + uint8_t result[4]; + + for (ch = str; *ch != '\0'; ch++) { + DEBUG("%2u: %c\t", (unsigned int) (ch-str), *ch); + switch (*ch) { + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + seen_digit_in_octet = true; + digit *= 10; + digit += (*ch - '0'); + DEBUG("digit = %u\n", digit); + if (CORK_UNLIKELY(digit > 255)) { + DEBUG("\t"); + goto parse_error; + } + break; + + case '.': + /* If this would be the fourth octet, it can't have a trailing + * period. */ + if (CORK_UNLIKELY(octets == 3)) { + goto parse_error; + } + DEBUG("octet %u = %u\n", octets, digit); + result[octets] = digit; + digit = 0; + octets++; + seen_digit_in_octet = false; + break; + + default: + /* Any other character is a parse error. */ + goto parse_error; + } + } + + /* If we have a valid octet at the end, and that would be the fourth octet, + * then we've got a valid final parse. */ + DEBUG("%2u:\t", (unsigned int) (ch-str)); + if (CORK_LIKELY(seen_digit_in_octet && octets == 3)) { +#if CORK_IP_ADDRESS_DEBUG + char parsed_ipv4[CORK_IPV4_STRING_LENGTH]; +#endif + DEBUG("octet %u = %u\n", octets, digit); + result[octets] = digit; + cork_ipv4_copy(addr, result); +#if CORK_IP_ADDRESS_DEBUG + cork_ipv4_to_raw_string(addr, parsed_ipv4); + DEBUG("\tParsed address: %s\n", parsed_ipv4); +#endif + return ch; + } + +parse_error: + DEBUG("parse error\n"); + cork_parse_error("Invalid IPv4 address: \"%s\"", str); + return NULL; +} + +int +cork_ipv4_init(struct cork_ipv4 *addr, const char *str) +{ + return cork_ipv4_parse(addr, str) == NULL? -1: 0; +} + +bool +cork_ipv4_equal_(const struct cork_ipv4 *addr1, const struct cork_ipv4 *addr2) +{ + return cork_ipv4_equal(addr1, addr2); +} + +void +cork_ipv4_to_raw_string(const struct cork_ipv4 *addr, char *dest) +{ + snprintf(dest, CORK_IPV4_STRING_LENGTH, "%u.%u.%u.%u", + addr->_.u8[0], addr->_.u8[1], addr->_.u8[2], addr->_.u8[3]); +} + +bool +cork_ipv4_is_valid_network(const struct cork_ipv4 *addr, + unsigned int cidr_prefix) +{ + uint32_t cidr_mask; + + if (cidr_prefix > 32) { + return false; + } else if (cidr_prefix == 32) { + /* This handles undefined behavior for overflow bit shifts. */ + cidr_mask = 0; + } else { + cidr_mask = 0xffffffff >> cidr_prefix; + } + + return (CORK_UINT32_BIG_TO_HOST(addr->_.u32) & cidr_mask) == 0; +} + +/*** IPv6 ***/ + +int +cork_ipv6_init(struct cork_ipv6 *addr, const char *str) +{ + const char *ch; + + uint16_t digit = 0; + unsigned int before_count = 0; + uint16_t before_double_colon[8]; + uint16_t after_double_colon[8]; + uint16_t *dest = before_double_colon; + + unsigned int digits_seen = 0; + unsigned int hextets_seen = 0; + bool another_required = true; + bool digit_allowed = true; + bool colon_allowed = true; + bool double_colon_allowed = true; + bool just_saw_colon = false; + + for (ch = str; *ch != '\0'; ch++) { + DEBUG("%2u: %c\t", (unsigned int) (ch-str), *ch); + switch (*ch) { +#define process_digit(base) \ + /* Make sure a digit is allowed here. */ \ + if (CORK_UNLIKELY(!digit_allowed)) { \ + goto parse_error; \ + } \ + /* If we've already seen 4 digits, it's a parse error. */ \ + if (CORK_UNLIKELY(digits_seen == 4)) { \ + goto parse_error; \ + } \ + \ + digits_seen++; \ + colon_allowed = true; \ + just_saw_colon = false; \ + digit <<= 4; \ + digit |= (*ch - (base)); \ + DEBUG("digit = %04x\n", digit); + + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + process_digit('0'); + break; + + case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': + process_digit('a'-10); + break; + + case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': + process_digit('A'-10); + break; + +#undef process_digit + + case ':': + /* We can only see a colon immediately after a hextet or as part + * of a double-colon. */ + if (CORK_UNLIKELY(!colon_allowed)) { + goto parse_error; + } + + /* If this is a double-colon, start parsing hextets into our + * second array. */ + if (just_saw_colon) { + DEBUG("double-colon\n"); + colon_allowed = false; + digit_allowed = true; + another_required = false; + double_colon_allowed = false; + before_count = hextets_seen; + dest = after_double_colon; + continue; + } + + /* If this would end the eighth hextet (regardless of the + * placement of a double-colon), then there can't be a trailing + * colon. */ + if (CORK_UNLIKELY(hextets_seen == 8)) { + goto parse_error; + } + + /* If this is the very beginning of the string, then we can only + * have a double-colon, not a single colon. */ + if (digits_seen == 0 && hextets_seen == 0) { + DEBUG("initial colon\n"); + colon_allowed = true; + digit_allowed = false; + just_saw_colon = true; + another_required = true; + continue; + } + + /* Otherwise this ends the current hextet. */ + DEBUG("hextet %u = %04x\n", hextets_seen, digit); + *(dest++) = CORK_UINT16_HOST_TO_BIG(digit); + digit = 0; + hextets_seen++; + digits_seen = 0; + colon_allowed = double_colon_allowed; + just_saw_colon = true; + another_required = true; + break; + + case '.': + { + /* If we see a period, then we must be in the middle of an IPv4 + * address at the end of the IPv6 address. */ + struct cork_ipv4 *ipv4 = (struct cork_ipv4 *) dest; + DEBUG("Detected IPv4 address %s\n", ch-digits_seen); + + /* Ensure that we have space for the two hextets that the IPv4 + * address will take up. */ + if (CORK_UNLIKELY(hextets_seen >= 7)) { + goto parse_error; + } + + /* Parse the IPv4 address directly into our current hextet + * buffer. */ + ch = cork_ipv4_parse(ipv4, ch - digits_seen); + if (CORK_LIKELY(ch != NULL)) { + hextets_seen += 2; + digits_seen = 0; + another_required = false; + + /* ch now points at the NUL terminator, but we're about to + * increment ch. */ + ch--; + break; + } + + /* The IPv4 parse failed, so we have an IPv6 parse error. */ + goto parse_error; + } + + default: + /* Any other character is a parse error. */ + goto parse_error; + } + } + + /* If we have a valid hextet at the end, and we've either seen a + * double-colon, or we have eight hextets in total, then we've got a valid + * final parse. */ + DEBUG("%2u:\t", (unsigned int) (ch-str)); + if (CORK_LIKELY(digits_seen > 0)) { + /* If there are trailing digits that would form a ninth hextet + * (regardless of the placement of a double-colon), then we have a parse + * error. */ + if (CORK_UNLIKELY(hextets_seen == 8)) { + goto parse_error; + } + + DEBUG("hextet %u = %04x\n\t", hextets_seen, digit); + *(dest++) = CORK_UINT16_HOST_TO_BIG(digit); + hextets_seen++; + } else if (CORK_UNLIKELY(another_required)) { + goto parse_error; + } + + if (!double_colon_allowed) { + /* We've seen a double-colon, so use 0000 for any hextets that weren't + * present. */ +#if CORK_IP_ADDRESS_DEBUG + char parsed_result[CORK_IPV6_STRING_LENGTH]; +#endif + unsigned int after_count = hextets_seen - before_count; + DEBUG("Saw double-colon; %u hextets before, %u after\n", + before_count, after_count); + memset(addr, 0, sizeof(struct cork_ipv6)); + memcpy(addr, before_double_colon, + sizeof(uint16_t) * before_count); + memcpy(&addr->_.u16[8-after_count], after_double_colon, + sizeof(uint16_t) * after_count); +#if CORK_IP_ADDRESS_DEBUG + cork_ipv6_to_raw_string(addr, parsed_result); + DEBUG("\tParsed address: %s\n", parsed_result); +#endif + return 0; + } else if (hextets_seen == 8) { + /* No double-colon, so we must have exactly eight hextets. */ +#if CORK_IP_ADDRESS_DEBUG + char parsed_result[CORK_IPV6_STRING_LENGTH]; +#endif + DEBUG("No double-colon\n"); + cork_ipv6_copy(addr, before_double_colon); +#if CORK_IP_ADDRESS_DEBUG + cork_ipv6_to_raw_string(addr, parsed_result); + DEBUG("\tParsed address: %s\n", parsed_result); +#endif + return 0; + } + +parse_error: + DEBUG("parse error\n"); + cork_parse_error("Invalid IPv6 address: \"%s\"", str); + return -1; +} + +bool +cork_ipv6_equal_(const struct cork_ipv6 *addr1, const struct cork_ipv6 *addr2) +{ + return cork_ipv6_equal(addr1, addr2); +} + +#define NS_IN6ADDRSZ 16 +#define NS_INT16SZ 2 + +void +cork_ipv6_to_raw_string(const struct cork_ipv6 *addr, char *dest) +{ + const uint8_t *src = addr->_.u8; + + /* + * Note that int32_t and int16_t need only be "at least" large enough + * to contain a value of the specified size. On some systems, like + * Crays, there is no such thing as an integer variable with 16 bits. + * Keep this in mind if you think this function should have been coded + * to use pointer overlays. All the world's not a VAX. + */ + char *tp; + struct { int base, len; } best, cur; + unsigned int words[NS_IN6ADDRSZ / NS_INT16SZ]; + int i; + + /* + * Preprocess: + * Copy the input (bytewise) array into a wordwise array. + * Find the longest run of 0x00's in src[] for :: shorthanding. + */ + memset(words, '\0', sizeof words); + for (i = 0; i < NS_IN6ADDRSZ; i++) + words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3)); + best.base = -1; + best.len = 0; + cur.base = -1; + cur.len = 0; + for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) { + if (words[i] == 0) { + if (cur.base == -1) + cur.base = i, cur.len = 1; + else + cur.len++; + } else { + if (cur.base != -1) { + if (best.base == -1 || cur.len > best.len) + best = cur; + cur.base = -1; + } + } + } + if (cur.base != -1) { + if (best.base == -1 || cur.len > best.len) + best = cur; + } + if (best.base != -1 && best.len < 2) + best.base = -1; + + /* + * Format the result. + */ + tp = dest; + for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) { + /* Are we inside the best run of 0x00's? */ + if (best.base != -1 && i >= best.base && + i < (best.base + best.len)) { + if (i == best.base) + *tp++ = ':'; + continue; + } + /* Are we following an initial run of 0x00s or any real hex? */ + if (i != 0) + *tp++ = ':'; + /* Is this address an encapsulated IPv4? */ + if (i == 6 && best.base == 0 && + (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) { + tp += sprintf(tp, "%u.%u.%u.%u", + src[12], src[13], src[14], src[15]); + break; + } + tp += sprintf(tp, "%x", words[i]); + } + /* Was it a trailing run of 0x00's? */ + if (best.base != -1 && (best.base + best.len) == + (NS_IN6ADDRSZ / NS_INT16SZ)) + *tp++ = ':'; + *tp++ = '\0'; +} + +bool +cork_ipv6_is_valid_network(const struct cork_ipv6 *addr, + unsigned int cidr_prefix) +{ + uint64_t cidr_mask[2]; + + if (cidr_prefix > 128) { + return false; + } else if (cidr_prefix == 128) { + /* This handles undefined behavior for overflow bit shifts. */ + cidr_mask[0] = cidr_mask[1] = 0; + } else if (cidr_prefix == 64) { + /* This handles undefined behavior for overflow bit shifts. */ + cidr_mask[0] = 0; + cidr_mask[1] = UINT64_C(0xffffffffffffffff); + } else if (cidr_prefix > 64) { + cidr_mask[0] = 0; + cidr_mask[1] = UINT64_C(0xffffffffffffffff) >> (cidr_prefix-64); + } else { + cidr_mask[0] = UINT64_C(0xffffffffffffffff) >> cidr_prefix; + cidr_mask[1] = UINT64_C(0xffffffffffffffff); + } + + return (CORK_UINT64_BIG_TO_HOST(addr->_.u64[0] & cidr_mask[0]) == 0) && + (CORK_UINT64_BIG_TO_HOST(addr->_.u64[1] & cidr_mask[1]) == 0); +} + + +/*** IP ***/ + +void +cork_ip_from_ipv4_(struct cork_ip *addr, const void *src) +{ + cork_ip_from_ipv4(addr, src); +} + +void +cork_ip_from_ipv6_(struct cork_ip *addr, const void *src) +{ + cork_ip_from_ipv6(addr, src); +} + +int +cork_ip_init(struct cork_ip *addr, const char *str) +{ + int rc; + + /* Try IPv4 first */ + rc = cork_ipv4_init(&addr->ip.v4, str); + if (rc == 0) { + /* successful parse */ + addr->version = 4; + return 0; + } + + /* Then try IPv6 */ + cork_error_clear(); + rc = cork_ipv6_init(&addr->ip.v6, str); + if (rc == 0) { + /* successful parse */ + addr->version = 6; + return 0; + } + + /* Parse error for both address types */ + cork_parse_error("Invalid IP address: \"%s\"", str); + return -1; +} + +bool +cork_ip_equal_(const struct cork_ip *addr1, const struct cork_ip *addr2) +{ + return cork_ip_equal(addr1, addr2); +} + +void +cork_ip_to_raw_string(const struct cork_ip *addr, char *dest) +{ + switch (addr->version) { + case 4: + cork_ipv4_to_raw_string(&addr->ip.v4, dest); + return; + + case 6: + cork_ipv6_to_raw_string(&addr->ip.v6, dest); + return; + + default: + strncpy(dest, "", CORK_IP_STRING_LENGTH); + return; + } +} + +bool +cork_ip_is_valid_network(const struct cork_ip *addr, unsigned int cidr_prefix) +{ + switch (addr->version) { + case 4: + return cork_ipv4_is_valid_network(&addr->ip.v4, cidr_prefix); + case 6: + return cork_ipv6_is_valid_network(&addr->ip.v6, cidr_prefix); + default: + return false; + } +} diff --git a/shadowsocksr-libev/src/libcork/core/mempool.c b/shadowsocksr-libev/src/libcork/core/mempool.c new file mode 100644 index 000000000..1937d35a8 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/core/mempool.c @@ -0,0 +1,198 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012-2015, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include + +#include "libcork/core/callbacks.h" +#include "libcork/core/mempool.h" +#include "libcork/core/types.h" +#include "libcork/helpers/errors.h" + + +#if !defined(CORK_DEBUG_MEMPOOL) +#define CORK_DEBUG_MEMPOOL 0 +#endif + +#if CORK_DEBUG_MEMPOOL +#include +#define DEBUG(...) fprintf(stderr, __VA_ARGS__) +#else +#define DEBUG(...) /* no debug messages */ +#endif + + + +struct cork_mempool { + size_t element_size; + size_t block_size; + struct cork_mempool_object *free_list; + /* The number of objects that have been given out by + * cork_mempool_new but not returned via cork_mempool_free. */ + size_t allocated_count; + struct cork_mempool_block *blocks; + + void *user_data; + cork_free_f free_user_data; + cork_init_f init_object; + cork_done_f done_object; +}; + +struct cork_mempool_object { + /* When this object is unclaimed, it will be in the cork_mempool + * object's free_list using this pointer. */ + struct cork_mempool_object *next_free; +}; + +struct cork_mempool_block { + struct cork_mempool_block *next_block; +}; + +#define cork_mempool_object_size(mp) \ + (sizeof(struct cork_mempool_object) + (mp)->element_size) + +#define cork_mempool_get_header(obj) \ + (((struct cork_mempool_object *) (obj)) - 1) + +#define cork_mempool_get_object(hdr) \ + ((void *) (((struct cork_mempool_object *) (hdr)) + 1)) + + +struct cork_mempool * +cork_mempool_new_size_ex(size_t element_size, size_t block_size) +{ + struct cork_mempool *mp = cork_new(struct cork_mempool); + mp->element_size = element_size; + mp->block_size = block_size; + mp->free_list = NULL; + mp->allocated_count = 0; + mp->blocks = NULL; + mp->user_data = NULL; + mp->free_user_data = NULL; + mp->init_object = NULL; + mp->done_object = NULL; + return mp; +} + +void +cork_mempool_free(struct cork_mempool *mp) +{ + struct cork_mempool_block *curr; + assert(mp->allocated_count == 0); + + if (mp->done_object != NULL) { + struct cork_mempool_object *obj; + for (obj = mp->free_list; obj != NULL; obj = obj->next_free) { + mp->done_object + (mp->user_data, cork_mempool_get_object(obj)); + } + } + + for (curr = mp->blocks; curr != NULL; ) { + struct cork_mempool_block *next = curr->next_block; + cork_free(curr, mp->block_size); + /* Do this here instead of in the for statement to avoid + * accessing the just-freed block. */ + curr = next; + } + + cork_free_user_data(mp); + cork_delete(struct cork_mempool, mp); +} + + +void +cork_mempool_set_user_data(struct cork_mempool *mp, + void *user_data, cork_free_f free_user_data) +{ + cork_free_user_data(mp); + mp->user_data = user_data; + mp->free_user_data = free_user_data; +} + +void +cork_mempool_set_init_object(struct cork_mempool *mp, cork_init_f init_object) +{ + mp->init_object = init_object; +} + +void +cork_mempool_set_done_object(struct cork_mempool *mp, cork_done_f done_object) +{ + mp->done_object = done_object; +} + +void +cork_mempool_set_callbacks(struct cork_mempool *mp, + void *user_data, cork_free_f free_user_data, + cork_init_f init_object, + cork_done_f done_object) +{ + cork_mempool_set_user_data(mp, user_data, free_user_data); + cork_mempool_set_init_object(mp, init_object); + cork_mempool_set_done_object(mp, done_object); +} + + +/* If this function succeeds, then we guarantee that there will be at + * least one object in mp->free_list. */ +static void +cork_mempool_new_block(struct cork_mempool *mp) +{ + /* Allocate the new block and add it to mp's block list. */ + struct cork_mempool_block *block; + void *vblock; + DEBUG("Allocating new %zu-byte block\n", mp->block_size); + block = cork_malloc(mp->block_size); + block->next_block = mp->blocks; + mp->blocks = block; + vblock = block; + + /* Divide the block's memory region into a bunch of objects. */ + size_t index = sizeof(struct cork_mempool_block); + for (index = sizeof(struct cork_mempool_block); + (index + cork_mempool_object_size(mp)) <= mp->block_size; + index += cork_mempool_object_size(mp)) { + struct cork_mempool_object *obj = vblock + index; + DEBUG(" New object at %p[%p]\n", cork_mempool_get_object(obj), obj); + if (mp->init_object != NULL) { + mp->init_object + (mp->user_data, cork_mempool_get_object(obj)); + } + obj->next_free = mp->free_list; + mp->free_list = obj; + } +} + +void * +cork_mempool_new_object(struct cork_mempool *mp) +{ + struct cork_mempool_object *obj; + void *ptr; + + if (CORK_UNLIKELY(mp->free_list == NULL)) { + cork_mempool_new_block(mp); + } + + obj = mp->free_list; + mp->free_list = obj->next_free; + mp->allocated_count++; + ptr = cork_mempool_get_object(obj); + return ptr; +} + +void +cork_mempool_free_object(struct cork_mempool *mp, void *ptr) +{ + struct cork_mempool_object *obj = cork_mempool_get_header(ptr); + DEBUG("Returning %p[%p] to memory pool\n", ptr, obj); + obj->next_free = mp->free_list; + mp->free_list = obj; + mp->allocated_count--; +} diff --git a/shadowsocksr-libev/src/libcork/core/timestamp.c b/shadowsocksr-libev/src/libcork/core/timestamp.c new file mode 100644 index 000000000..5da1337eb --- /dev/null +++ b/shadowsocksr-libev/src/libcork/core/timestamp.c @@ -0,0 +1,190 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include +#include + +#include "libcork/core/timestamp.h" +#include "libcork/core/types.h" +#include "libcork/helpers/errors.h" + +void +cork_timestamp_init_now(cork_timestamp *ts) +{ + struct timeval tp; + gettimeofday(&tp, NULL); + cork_timestamp_init_usec(ts, tp.tv_sec, tp.tv_usec); +} + + +#define is_digit(ch) ((ch) >= '0' && (ch) <= '9') + +static uint64_t +power_of_10(unsigned int width) +{ + uint64_t accumulator = 10; + uint64_t result = 1; + while (width != 0) { + if ((width % 2) == 1) { + result *= accumulator; + width--; + } + accumulator *= accumulator; + width /= 2; + } + return result; +} + +static int +append_fractional(const cork_timestamp ts, unsigned int width, + struct cork_buffer *dest) +{ + if (CORK_UNLIKELY(width == 0 || width > 9)) { + cork_error_set_printf + (EINVAL, + "Invalid width %u for fractional cork_timestamp", width); + return -1; + } else { + uint64_t denom = power_of_10(width); + uint64_t frac = cork_timestamp_gsec_to_units(ts, denom); + cork_buffer_append_printf(dest, "%0*" PRIu64, width, frac); + return 0; + } +} + +static int +cork_timestamp_format_parts(const cork_timestamp ts, struct tm *tm, + const char *format, struct cork_buffer *dest) +{ + const char *next_percent; + + while ((next_percent = strchr(format, '%')) != NULL) { + const char *spec = next_percent + 1; + unsigned int width = 0; + + /* First append any text in between the previous format specifier and + * this one. */ + cork_buffer_append(dest, format, next_percent - format); + + /* Then parse the format specifier */ + while (is_digit(*spec)) { + width *= 10; + width += (*spec++ - '0'); + } + + switch (*spec) { + case '\0': + cork_error_set_string + (EINVAL, + "Trailing %% at end of cork_timestamp format string"); + return -1; + + case '%': + cork_buffer_append(dest, "%", 1); + break; + + case 'Y': + cork_buffer_append_printf(dest, "%04d", tm->tm_year + 1900); + break; + + case 'm': + cork_buffer_append_printf(dest, "%02d", tm->tm_mon + 1); + break; + + case 'd': + cork_buffer_append_printf(dest, "%02d", tm->tm_mday); + break; + + case 'H': + cork_buffer_append_printf(dest, "%02d", tm->tm_hour); + break; + + case 'M': + cork_buffer_append_printf(dest, "%02d", tm->tm_min); + break; + + case 'S': + cork_buffer_append_printf(dest, "%02d", tm->tm_sec); + break; + + case 's': + cork_buffer_append_printf + (dest, "%" PRIu32, cork_timestamp_sec(ts)); + break; + + case 'f': + rii_check(append_fractional(ts, width, dest)); + break; + + default: + cork_error_set_printf + (EINVAL, + "Unknown cork_timestamp format specifier %%%c", *spec); + return -1; + } + + format = spec + 1; + } + + /* When we fall through, there is some additional content after the final + * format specifier. */ + cork_buffer_append_string(dest, format); + return 0; +} + +#ifdef __MINGW32__ +static struct tm *__cdecl gmtime_r(const time_t *_Time, struct tm *_Tm) +{ + struct tm *p = gmtime(_Time); + if (!p) + return NULL; + if (_Tm) { + memcpy(_Tm, p, sizeof(struct tm)); + return _Tm; + } else + return p; +} + +static struct tm *__cdecl localtime_r(const time_t *_Time, struct tm *_Tm) +{ + struct tm *p = localtime(_Time); + if (!p) + return NULL; + if (_Tm) { + memcpy(_Tm, p, sizeof(struct tm)); + return _Tm; + } else + return p; +} + +#endif + + +int +cork_timestamp_format_utc(const cork_timestamp ts, const char *format, + struct cork_buffer *dest) +{ + time_t clock; + struct tm tm; + clock = cork_timestamp_sec(ts); + gmtime_r(&clock, &tm); + return cork_timestamp_format_parts(ts, &tm, format, dest); +} + +int +cork_timestamp_format_local(const cork_timestamp ts, const char *format, + struct cork_buffer *dest) +{ + time_t clock; + struct tm tm; + clock = cork_timestamp_sec(ts); + localtime_r(&clock, &tm); + return cork_timestamp_format_parts(ts, &tm, format, dest); +} diff --git a/shadowsocksr-libev/src/libcork/core/u128.c b/shadowsocksr-libev/src/libcork/core/u128.c new file mode 100644 index 000000000..90fd07745 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/core/u128.c @@ -0,0 +1,85 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include + +#include "libcork/core/types.h" +#include "libcork/core/u128.h" + + +/* From http://stackoverflow.com/questions/8023414/how-to-convert-a-128-bit-integer-to-a-decimal-ascii-string-in-c */ + +const char * +cork_u128_to_decimal(char *dest, cork_u128 val) +{ + uint32_t n[4]; + char *s = dest; + char *p = dest; + unsigned int i; + + /* This algorithm assumes that n[3] is the MSW. */ + n[3] = cork_u128_be32(val, 0); + n[2] = cork_u128_be32(val, 1); + n[1] = cork_u128_be32(val, 2); + n[0] = cork_u128_be32(val, 3); + + memset(s, '0', CORK_U128_DECIMAL_LENGTH - 1); + s[CORK_U128_DECIMAL_LENGTH - 1] = '\0'; + + for (i = 0; i < 128; i++) { + unsigned int j; + unsigned int carry; + + carry = (n[3] >= 0x80000000); + /* Shift n[] left, doubling it */ + n[3] = ((n[3] << 1) & 0xFFFFFFFF) + (n[2] >= 0x80000000); + n[2] = ((n[2] << 1) & 0xFFFFFFFF) + (n[1] >= 0x80000000); + n[1] = ((n[1] << 1) & 0xFFFFFFFF) + (n[0] >= 0x80000000); + n[0] = ((n[0] << 1) & 0xFFFFFFFF); + + /* Add s[] to itself in decimal, doubling it */ + for (j = CORK_U128_DECIMAL_LENGTH - 1; j-- > 0; ) { + s[j] += s[j] - '0' + carry; + carry = (s[j] > '9'); + if (carry) { + s[j] -= 10; + } + } + } + + while ((p[0] == '0') && (p < &s[CORK_U128_DECIMAL_LENGTH - 2])) { + p++; + } + + return p; +} + + +const char * +cork_u128_to_hex(char *buf, cork_u128 val) +{ + uint64_t hi = val._.be64.hi; + uint64_t lo = val._.be64.lo; + if (hi == 0) { + snprintf(buf, CORK_U128_HEX_LENGTH, "%" PRIx64, lo); + } else { + snprintf(buf, CORK_U128_HEX_LENGTH, "%" PRIx64 "%016" PRIx64, hi, lo); + } + return buf; +} + +const char * +cork_u128_to_padded_hex(char *buf, cork_u128 val) +{ + uint64_t hi = val._.be64.hi; + uint64_t lo = val._.be64.lo; + snprintf(buf, CORK_U128_HEX_LENGTH, "%016" PRIx64 "%016" PRIx64, hi, lo); + return buf; +} diff --git a/shadowsocksr-libev/src/libcork/core/version.c b/shadowsocksr-libev/src/libcork/core/version.c new file mode 100644 index 000000000..474fc6e64 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/core/version.c @@ -0,0 +1,28 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2015, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include "libcork/config.h" +#include "libcork/core/api.h" + + +/*----------------------------------------------------------------------- + * Library version + */ + +const char * +cork_version_string(void) +{ + return CORK_CONFIG_VERSION_STRING; +} + +const char * +cork_revision_string(void) +{ + return CORK_CONFIG_REVISION; +} diff --git a/shadowsocksr-libev/src/libcork/ds/array.c b/shadowsocksr-libev/src/libcork/ds/array.c new file mode 100644 index 000000000..378b1a0df --- /dev/null +++ b/shadowsocksr-libev/src/libcork/ds/array.c @@ -0,0 +1,378 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include +#include + +#include "libcork/core/types.h" +#include "libcork/ds/array.h" +#include "libcork/helpers/errors.h" + +#ifndef CORK_ARRAY_DEBUG +#define CORK_ARRAY_DEBUG 0 +#endif + +#if CORK_ARRAY_DEBUG +#include +#define DEBUG(...) \ + do { \ + fprintf(stderr, __VA_ARGS__); \ + fprintf(stderr, "\n"); \ + } while (0) +#else +#define DEBUG(...) /* nothing */ +#endif + + +/*----------------------------------------------------------------------- + * Resizable arrays + */ + +struct cork_array_priv { + size_t allocated_count; + size_t allocated_size; + size_t element_size; + size_t initialized_count; + void *user_data; + cork_free_f free_user_data; + cork_init_f init; + cork_done_f done; + cork_init_f reuse; + cork_done_f remove; +}; + +void +cork_raw_array_init(struct cork_raw_array *array, size_t element_size) +{ + array->items = NULL; + array->size = 0; + array->priv = cork_new(struct cork_array_priv); + array->priv->allocated_count = 0; + array->priv->allocated_size = 0; + array->priv->element_size = element_size; + array->priv->initialized_count = 0; + array->priv->user_data = NULL; + array->priv->free_user_data = NULL; + array->priv->init = NULL; + array->priv->done = NULL; + array->priv->reuse = NULL; + array->priv->remove = NULL; +} + +void +cork_raw_array_done(struct cork_raw_array *array) +{ + if (array->priv->done != NULL) { + size_t i; + char *element = array->items; + for (i = 0; i < array->priv->initialized_count; i++) { + array->priv->done(array->priv->user_data, element); + element += array->priv->element_size; + } + } + if (array->items != NULL) { + cork_free(array->items, array->priv->allocated_size); + } + cork_free_user_data(array->priv); + cork_delete(struct cork_array_priv, array->priv); +} + +void +cork_raw_array_set_callback_data(struct cork_raw_array *array, + void *user_data, cork_free_f free_user_data) +{ + array->priv->user_data = user_data; + array->priv->free_user_data = free_user_data; +} + +void +cork_raw_array_set_init(struct cork_raw_array *array, cork_init_f init) +{ + array->priv->init = init; +} + +void +cork_raw_array_set_done(struct cork_raw_array *array, cork_done_f done) +{ + array->priv->done = done; +} + +void +cork_raw_array_set_reuse(struct cork_raw_array *array, cork_init_f reuse) +{ + array->priv->reuse = reuse; +} + +void +cork_raw_array_set_remove(struct cork_raw_array *array, cork_done_f remove) +{ + array->priv->remove = remove; +} + +size_t +cork_raw_array_element_size(const struct cork_raw_array *array) +{ + return array->priv->element_size; +} + +void +cork_raw_array_clear(struct cork_raw_array *array) +{ + if (array->priv->remove != NULL) { + size_t i; + char *element = array->items; + for (i = 0; i < array->priv->initialized_count; i++) { + array->priv->remove(array->priv->user_data, element); + element += array->priv->element_size; + } + } + array->size = 0; +} + +void * +cork_raw_array_elements(const struct cork_raw_array *array) +{ + return array->items; +} + +void * +cork_raw_array_at(const struct cork_raw_array *array, size_t index) +{ + return ((char *) array->items) + (array->priv->element_size * index); +} + +size_t +cork_raw_array_size(const struct cork_raw_array *array) +{ + return array->size; +} + +bool +cork_raw_array_is_empty(const struct cork_raw_array *array) +{ + return (array->size == 0); +} + +void +cork_raw_array_ensure_size(struct cork_raw_array *array, size_t desired_count) +{ + size_t desired_size; + + DEBUG("--- Array %p: Ensure %zu %zu-byte elements", + array, desired_count, array->priv->element_size); + desired_size = desired_count * array->priv->element_size; + + if (desired_size > array->priv->allocated_size) { + size_t new_count = array->priv->allocated_count * 2; + size_t new_size = array->priv->allocated_size * 2; + if (desired_size > new_size) { + new_count = desired_count; + new_size = desired_size; + } + + DEBUG("--- Array %p: Reallocating %zu->%zu bytes", + array, array->priv->allocated_size, new_size); + array->items = + cork_realloc(array->items, array->priv->allocated_size, new_size); + + array->priv->allocated_count = new_count; + array->priv->allocated_size = new_size; + } +} + +void * +cork_raw_array_append(struct cork_raw_array *array) +{ + size_t index; + void *element; + index = array->size++; + cork_raw_array_ensure_size(array, array->size); + element = cork_raw_array_at(array, index); + + /* Call the init or reset callback, depending on whether this entry has been + * initialized before. */ + + /* Since we can currently only add elements by appending them one at a time, + * then this entry is either already initialized, or is the first + * uninitialized entry. */ + assert(index <= array->priv->initialized_count); + + if (index == array->priv->initialized_count) { + /* This element has not been initialized yet. */ + array->priv->initialized_count++; + if (array->priv->init != NULL) { + array->priv->init(array->priv->user_data, element); + } + } else { + /* This element has already been initialized. */ + if (array->priv->reuse != NULL) { + array->priv->reuse(array->priv->user_data, element); + } + } + + return element; +} + +int +cork_raw_array_copy(struct cork_raw_array *dest, + const struct cork_raw_array *src, + cork_copy_f copy, void *user_data) +{ + size_t i; + size_t reuse_count; + char *dest_element; + + DEBUG("--- Copying %zu elements (%zu bytes) from %p to %p", + src->size, src->size * dest->priv->element_size, src, dest); + assert(dest->priv->element_size == src->priv->element_size); + cork_array_clear(dest); + cork_array_ensure_size(dest, src->size); + + /* Initialize enough elements to hold the contents of src */ + reuse_count = dest->priv->initialized_count; + if (src->size < reuse_count) { + reuse_count = src->size; + } + + dest_element = dest->items; + if (dest->priv->reuse != NULL) { + DEBUG(" Calling reuse on elements 0-%zu", reuse_count); + for (i = 0; i < reuse_count; i++) { + dest->priv->reuse(dest->priv->user_data, dest_element); + dest_element += dest->priv->element_size; + } + } else { + dest_element += reuse_count * dest->priv->element_size; + } + + if (dest->priv->init != NULL) { + DEBUG(" Calling init on elements %zu-%zu", reuse_count, src->size); + for (i = reuse_count; i < src->size; i++) { + dest->priv->init(dest->priv->user_data, dest_element); + dest_element += dest->priv->element_size; + } + } + + if (src->size > dest->priv->initialized_count) { + dest->priv->initialized_count = src->size; + } + + /* If the caller provided a copy function, let it copy each element in turn. + * Otherwise, bulk copy everything using memcpy. */ + if (copy == NULL) { + memcpy(dest->items, src->items, src->size * dest->priv->element_size); + } else { + const char *src_element = src->items; + dest_element = dest->items; + for (i = 0; i < src->size; i++) { + rii_check(copy(user_data, dest_element, src_element)); + dest_element += dest->priv->element_size; + src_element += dest->priv->element_size; + } + } + + dest->size = src->size; + return 0; +} + + +/*----------------------------------------------------------------------- + * Pointer arrays + */ + +struct cork_pointer_array { + cork_free_f free; +}; + +static void +pointer__init(void *user_data, void *vvalue) +{ + void **value = vvalue; + *value = NULL; +} + +static void +pointer__done(void *user_data, void *vvalue) +{ + struct cork_pointer_array *ptr_array = user_data; + void **value = vvalue; + if (*value != NULL) { + ptr_array->free(*value); + } +} + +static void +pointer__remove(void *user_data, void *vvalue) +{ + struct cork_pointer_array *ptr_array = user_data; + void **value = vvalue; + if (*value != NULL) { + ptr_array->free(*value); + } + *value = NULL; +} + +static void +pointer__free(void *user_data) +{ + struct cork_pointer_array *ptr_array = user_data; + cork_delete(struct cork_pointer_array, ptr_array); +} + +void +cork_raw_pointer_array_init(struct cork_raw_array *array, cork_free_f free_ptr) +{ + struct cork_pointer_array *ptr_array = cork_new(struct cork_pointer_array); + ptr_array->free = free_ptr; + cork_raw_array_init(array, sizeof(void *)); + cork_array_set_callback_data(array, ptr_array, pointer__free); + cork_array_set_init(array, pointer__init); + cork_array_set_done(array, pointer__done); + cork_array_set_remove(array, pointer__remove); +} + + +/*----------------------------------------------------------------------- + * String arrays + */ + +void +cork_string_array_init(struct cork_string_array *array) +{ + cork_raw_pointer_array_init + ((struct cork_raw_array *) array, (cork_free_f) cork_strfree); +} + +void +cork_string_array_append(struct cork_string_array *array, const char *str) +{ + const char *copy = cork_strdup(str); + cork_array_append(array, copy); +} + +static int +string__copy(void *user_data, void *vdest, const void *vsrc) +{ + const char **dest = vdest; + const char **src = (const char **) vsrc; + *dest = cork_strdup(*src); + return 0; +} + +void +cork_string_array_copy(struct cork_string_array *dest, + const struct cork_string_array *src) +{ + CORK_ATTR_UNUSED int rc; + rc = cork_array_copy(dest, src, string__copy, NULL); + /* cork_array_copy can only fail if the copy callback fails, and ours + * doesn't! */ + assert(rc == 0); +} diff --git a/shadowsocksr-libev/src/libcork/ds/bitset.c b/shadowsocksr-libev/src/libcork/ds/bitset.c new file mode 100644 index 000000000..41bf8f2bb --- /dev/null +++ b/shadowsocksr-libev/src/libcork/ds/bitset.c @@ -0,0 +1,62 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include + +#include "libcork/core/allocator.h" +#include "libcork/core/api.h" +#include "libcork/core/types.h" +#include "libcork/ds/bitset.h" + + +static size_t +bytes_needed(size_t bit_count) +{ + /* We need one byte for every bit... */ + size_t bytes_needed = bit_count / 8; + /* Plus one extra for the leftovers that don't fit into a whole byte. */ + bytes_needed += ((bit_count % 8) > 0); + return bytes_needed; +} + +void +cork_bitset_init(struct cork_bitset *set, size_t bit_count) +{ + set->bit_count = bit_count; + set->byte_count = bytes_needed(bit_count); + set->bits = cork_malloc(set->byte_count); + memset(set->bits, 0, set->byte_count); +} + +struct cork_bitset * +cork_bitset_new(size_t bit_count) +{ + struct cork_bitset *set = cork_new(struct cork_bitset); + cork_bitset_init(set, bit_count); + return set; +} + +void +cork_bitset_done(struct cork_bitset *set) +{ + cork_free(set->bits, set->byte_count); +} + +void +cork_bitset_free(struct cork_bitset *set) +{ + cork_bitset_done(set); + cork_delete(struct cork_bitset, set); +} + +void +cork_bitset_clear(struct cork_bitset *set) +{ + memset(set->bits, 0, set->byte_count); +} diff --git a/shadowsocksr-libev/src/libcork/ds/buffer.c b/shadowsocksr-libev/src/libcork/ds/buffer.c new file mode 100644 index 000000000..2cd8e1c9c --- /dev/null +++ b/shadowsocksr-libev/src/libcork/ds/buffer.c @@ -0,0 +1,471 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include +#include + +#include "libcork/core/allocator.h" +#include "libcork/core/types.h" +#include "libcork/ds/buffer.h" +#include "libcork/ds/managed-buffer.h" +#include "libcork/ds/stream.h" +#include "libcork/helpers/errors.h" + + +void +cork_buffer_init(struct cork_buffer *buffer) +{ + buffer->buf = NULL; + buffer->size = 0; + buffer->allocated_size = 0; +} + + +struct cork_buffer * +cork_buffer_new(void) +{ + struct cork_buffer *buffer = cork_new(struct cork_buffer); + cork_buffer_init(buffer); + return buffer; +} + + +void +cork_buffer_done(struct cork_buffer *buffer) +{ + if (buffer->buf != NULL) { + cork_free(buffer->buf, buffer->allocated_size); + buffer->buf = NULL; + } + buffer->size = 0; + buffer->allocated_size = 0; +} + + +void +cork_buffer_free(struct cork_buffer *buffer) +{ + cork_buffer_done(buffer); + cork_delete(struct cork_buffer, buffer); +} + + +bool +cork_buffer_equal(const struct cork_buffer *buffer1, + const struct cork_buffer *buffer2) +{ + if (buffer1 == buffer2) { + return true; + } + + if (buffer1->size != buffer2->size) { + return false; + } + + return (memcmp(buffer1->buf, buffer2->buf, buffer1->size) == 0); +} + + +static void +cork_buffer_ensure_size_int(struct cork_buffer *buffer, size_t desired_size) +{ + size_t new_size; + + if (CORK_LIKELY(buffer->allocated_size >= desired_size)) { + return; + } + + /* Make sure we at least double the old size when reallocating. */ + new_size = buffer->allocated_size * 2; + if (desired_size > new_size) { + new_size = desired_size; + } + + buffer->buf = cork_realloc(buffer->buf, buffer->allocated_size, new_size); + buffer->allocated_size = new_size; +} + +void +cork_buffer_ensure_size(struct cork_buffer *buffer, size_t desired_size) +{ + cork_buffer_ensure_size_int(buffer, desired_size); +} + + +void +cork_buffer_clear(struct cork_buffer *buffer) +{ + buffer->size = 0; + if (buffer->buf != NULL) { + ((char *) buffer->buf)[0] = '\0'; + } +} + +void +cork_buffer_truncate(struct cork_buffer *buffer, size_t length) +{ + if (buffer->size > length) { + buffer->size = length; + if (length == 0) { + if (buffer->buf != NULL) { + ((char *) buffer->buf)[0] = '\0'; + } + } else { + ((char *) buffer->buf)[length] = '\0'; + } + } +} + + +void +cork_buffer_set(struct cork_buffer *buffer, const void *src, size_t length) +{ + cork_buffer_ensure_size_int(buffer, length+1); + memcpy(buffer->buf, src, length); + ((char *) buffer->buf)[length] = '\0'; + buffer->size = length; +} + + +void +cork_buffer_append(struct cork_buffer *buffer, const void *src, size_t length) +{ + cork_buffer_ensure_size_int(buffer, buffer->size + length + 1); + memcpy(buffer->buf + buffer->size, src, length); + buffer->size += length; + ((char *) buffer->buf)[buffer->size] = '\0'; +} + + +void +cork_buffer_set_string(struct cork_buffer *buffer, const char *str) +{ + cork_buffer_set(buffer, str, strlen(str)); +} + + +void +cork_buffer_append_string(struct cork_buffer *buffer, const char *str) +{ + cork_buffer_append(buffer, str, strlen(str)); +} + + +void +cork_buffer_append_vprintf(struct cork_buffer *buffer, const char *format, + va_list args) +{ + size_t format_size; + va_list args1; + + va_copy(args1, args); + format_size = vsnprintf(buffer->buf + buffer->size, + buffer->allocated_size - buffer->size, + format, args1); + va_end(args1); + + /* If the first call works, then set buffer->size and return. */ + if (format_size < (buffer->allocated_size - buffer->size)) { + buffer->size += format_size; + return; + } + + /* If the first call fails, resize buffer and try again. */ + cork_buffer_ensure_size_int + (buffer, buffer->allocated_size + format_size + 1); + format_size = vsnprintf(buffer->buf + buffer->size, + buffer->allocated_size - buffer->size, + format, args); + buffer->size += format_size; +} + + +void +cork_buffer_vprintf(struct cork_buffer *buffer, const char *format, + va_list args) +{ + cork_buffer_clear(buffer); + cork_buffer_append_vprintf(buffer, format, args); +} + + +void +cork_buffer_append_printf(struct cork_buffer *buffer, const char *format, ...) +{ + va_list args; + va_start(args, format); + cork_buffer_append_vprintf(buffer, format, args); + va_end(args); +} + + +void +cork_buffer_printf(struct cork_buffer *buffer, const char *format, ...) +{ + va_list args; + va_start(args, format); + cork_buffer_vprintf(buffer, format, args); + va_end(args); +} + + +void +cork_buffer_append_indent(struct cork_buffer *buffer, size_t indent) +{ + cork_buffer_ensure_size_int(buffer, buffer->size + indent + 1); + memset(buffer->buf + buffer->size, ' ', indent); + buffer->size += indent; + ((char *) buffer->buf)[buffer->size] = '\0'; +} + +/* including space */ +#define is_sprint(ch) ((ch) >= 0x20 && (ch) <= 0x7e) + +/* not including space */ +#define is_print(ch) ((ch) > 0x20 && (ch) <= 0x7e) + +#define is_space(ch) \ + ((ch) == ' ' || \ + (ch) == '\f' || \ + (ch) == '\n' || \ + (ch) == '\r' || \ + (ch) == '\t' || \ + (ch) == '\v') + +#define to_hex(nybble) \ + ((nybble) < 10? '0' + (nybble): 'a' - 10 + (nybble)) + +void +cork_buffer_append_c_string(struct cork_buffer *dest, + const char *chars, size_t length) +{ + size_t i; + cork_buffer_append(dest, "\"", 1); + for (i = 0; i < length; i++) { + char ch = chars[i]; + switch (ch) { + case '\"': + cork_buffer_append_literal(dest, "\\\""); + break; + case '\\': + cork_buffer_append_literal(dest, "\\\\"); + break; + case '\f': + cork_buffer_append_literal(dest, "\\f"); + break; + case '\n': + cork_buffer_append_literal(dest, "\\n"); + break; + case '\r': + cork_buffer_append_literal(dest, "\\r"); + break; + case '\t': + cork_buffer_append_literal(dest, "\\t"); + break; + case '\v': + cork_buffer_append_literal(dest, "\\v"); + break; + default: + if (is_sprint(ch)) { + cork_buffer_append(dest, &chars[i], 1); + } else { + uint8_t byte = ch; + cork_buffer_append_printf(dest, "\\x%02" PRIx8, byte); + } + break; + } + } + cork_buffer_append(dest, "\"", 1); +} + +void +cork_buffer_append_hex_dump(struct cork_buffer *dest, size_t indent, + const char *chars, size_t length) +{ + char hex[3 * 16]; + char print[16]; + char *curr_hex = hex; + char *curr_print = print; + size_t i; + size_t column = 0; + for (i = 0; i < length; i++) { + char ch = chars[i]; + uint8_t u8 = ch; + *curr_hex++ = to_hex(u8 >> 4); + *curr_hex++ = to_hex(u8 & 0x0f); + *curr_hex++ = ' '; + *curr_print++ = is_sprint(ch)? ch: '.'; + if (column == 0 && i != 0) { + cork_buffer_append_literal(dest, "\n"); + cork_buffer_append_indent(dest, indent); + column++; + } else if (column == 15) { + cork_buffer_append_printf + (dest, "%-48.*s", (int) (curr_hex - hex), hex); + cork_buffer_append_literal(dest, " |"); + cork_buffer_append(dest, print, curr_print - print); + cork_buffer_append_literal(dest, "|"); + curr_hex = hex; + curr_print = print; + column = 0; + } else { + column++; + } + } + + if (column > 0) { + cork_buffer_append_printf(dest, "%-48.*s", (int) (curr_hex - hex), hex); + cork_buffer_append_literal(dest, " |"); + cork_buffer_append(dest, print, curr_print - print); + cork_buffer_append_literal(dest, "|"); + } +} + +void +cork_buffer_append_multiline(struct cork_buffer *dest, size_t indent, + const char *chars, size_t length) +{ + size_t i; + for (i = 0; i < length; i++) { + char ch = chars[i]; + if (ch == '\n') { + cork_buffer_append_literal(dest, "\n"); + cork_buffer_append_indent(dest, indent); + } else { + cork_buffer_append(dest, &chars[i], 1); + } + } +} + +void +cork_buffer_append_binary(struct cork_buffer *dest, size_t indent, + const char *chars, size_t length) +{ + size_t i; + bool newline = false; + + /* If there are any non-printable characters, print out a hex dump */ + for (i = 0; i < length; i++) { + if (!is_print(chars[i]) && !is_space(chars[i])) { + cork_buffer_append_literal(dest, "(hex)\n"); + cork_buffer_append_indent(dest, indent); + cork_buffer_append_hex_dump(dest, indent, chars, length); + return; + } else if (chars[i] == '\n') { + newline = true; + /* Don't immediately use the multiline format, since there might be + * a non-printable character later on that kicks us over to the hex + * dump format. */ + } + } + + if (newline) { + cork_buffer_append_literal(dest, "(multiline)\n"); + cork_buffer_append_indent(dest, indent); + cork_buffer_append_multiline(dest, indent, chars, length); + } else { + cork_buffer_append(dest, chars, length); + } +} + + +struct cork_buffer__managed_buffer { + struct cork_managed_buffer parent; + struct cork_buffer *buffer; +}; + +static void +cork_buffer__managed_free(struct cork_managed_buffer *vself) +{ + struct cork_buffer__managed_buffer *self = + cork_container_of(vself, struct cork_buffer__managed_buffer, parent); + cork_buffer_free(self->buffer); + cork_delete(struct cork_buffer__managed_buffer, self); +} + +static struct cork_managed_buffer_iface CORK_BUFFER__MANAGED_BUFFER = { + cork_buffer__managed_free +}; + +struct cork_managed_buffer * +cork_buffer_to_managed_buffer(struct cork_buffer *buffer) +{ + struct cork_buffer__managed_buffer *self = + cork_new(struct cork_buffer__managed_buffer); + self->parent.buf = buffer->buf; + self->parent.size = buffer->size; + self->parent.ref_count = 1; + self->parent.iface = &CORK_BUFFER__MANAGED_BUFFER; + self->buffer = buffer; + return &self->parent; +} + + +int +cork_buffer_to_slice(struct cork_buffer *buffer, struct cork_slice *slice) +{ + struct cork_managed_buffer *managed = + cork_buffer_to_managed_buffer(buffer); + + /* We don't have to check for NULL; cork_managed_buffer_slice_offset + * will do that for us. */ + int rc = cork_managed_buffer_slice_offset(slice, managed, 0); + + /* Before returning, drop our reference to the managed buffer. If + * the slicing succeeded, then there will be one remaining reference + * in the slice. If it didn't succeed, this will free the managed + * buffer for us. */ + cork_managed_buffer_unref(managed); + return rc; +} + + +struct cork_buffer__stream_consumer { + struct cork_stream_consumer consumer; + struct cork_buffer *buffer; +}; + +static int +cork_buffer_stream_consumer_data(struct cork_stream_consumer *consumer, + const void *buf, size_t size, + bool is_first_chunk) +{ + struct cork_buffer__stream_consumer *bconsumer = cork_container_of + (consumer, struct cork_buffer__stream_consumer, consumer); + cork_buffer_append(bconsumer->buffer, buf, size); + return 0; +} + +static int +cork_buffer_stream_consumer_eof(struct cork_stream_consumer *consumer) +{ + return 0; +} + +static void +cork_buffer_stream_consumer_free(struct cork_stream_consumer *consumer) +{ + struct cork_buffer__stream_consumer *bconsumer = + cork_container_of + (consumer, struct cork_buffer__stream_consumer, consumer); + cork_delete(struct cork_buffer__stream_consumer, bconsumer); +} + +struct cork_stream_consumer * +cork_buffer_to_stream_consumer(struct cork_buffer *buffer) +{ + struct cork_buffer__stream_consumer *bconsumer = + cork_new(struct cork_buffer__stream_consumer); + bconsumer->consumer.data = cork_buffer_stream_consumer_data; + bconsumer->consumer.eof = cork_buffer_stream_consumer_eof; + bconsumer->consumer.free = cork_buffer_stream_consumer_free; + bconsumer->buffer = buffer; + return &bconsumer->consumer; +} diff --git a/shadowsocksr-libev/src/libcork/ds/dllist.c b/shadowsocksr-libev/src/libcork/ds/dllist.c new file mode 100644 index 000000000..dbaafbc42 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/ds/dllist.c @@ -0,0 +1,63 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include "libcork/core/api.h" +#include "libcork/core/types.h" +#include "libcork/ds/dllist.h" + + +/* Include a linkable (but deprecated) version of this to maintain ABI + * compatibility. */ +#undef cork_dllist_init +CORK_API void +cork_dllist_init(struct cork_dllist *list) +{ + list->head.next = &list->head; + list->head.prev = &list->head; +} + + +void +cork_dllist_map(struct cork_dllist *list, + cork_dllist_map_func func, void *user_data) +{ + struct cork_dllist_item *curr; + struct cork_dllist_item *next; + cork_dllist_foreach_void(list, curr, next) { + func(curr, user_data); + } +} + +int +cork_dllist_visit(struct cork_dllist *list, void *ud, + cork_dllist_visit_f *visit) +{ + struct cork_dllist_item *curr; + struct cork_dllist_item *next; + cork_dllist_foreach_void(list, curr, next) { + int rc = visit(ud, curr); + if (rc != 0) { + return rc; + } + } + return 0; +} + + +size_t +cork_dllist_size(const struct cork_dllist *list) +{ + size_t size = 0; + struct cork_dllist_item *curr; + struct cork_dllist_item *next; + cork_dllist_foreach_void(list, curr, next) { + size++; + } + return size; +} diff --git a/shadowsocksr-libev/src/libcork/ds/file-stream.c b/shadowsocksr-libev/src/libcork/ds/file-stream.c new file mode 100644 index 000000000..c9a7c7326 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/ds/file-stream.c @@ -0,0 +1,214 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include +#include +#include +#include + +#include "libcork/ds/stream.h" +#include "libcork/helpers/errors.h" +#include "libcork/helpers/posix.h" + +#define BUFFER_SIZE 4096 + + +/*----------------------------------------------------------------------- + * Producers + */ + +int +cork_consume_fd(struct cork_stream_consumer *consumer, int fd) +{ + char buf[BUFFER_SIZE]; + ssize_t bytes_read; + bool first = true; + + while (true) { + while ((bytes_read = read(fd, buf, BUFFER_SIZE)) > 0) { + rii_check(cork_stream_consumer_data + (consumer, buf, bytes_read, first)); + first = false; + } + + if (bytes_read == 0) { + return cork_stream_consumer_eof(consumer); + } else if (errno != EINTR) { + cork_system_error_set(); + return -1; + } + } +} + +int +cork_consume_file(struct cork_stream_consumer *consumer, FILE *fp) +{ + char buf[BUFFER_SIZE]; + size_t bytes_read; + bool first = true; + + while (true) { + while ((bytes_read = fread(buf, 1, BUFFER_SIZE, fp)) > 0) { + rii_check(cork_stream_consumer_data + (consumer, buf, bytes_read, first)); + first = false; + } + + if (feof(fp)) { + return cork_stream_consumer_eof(consumer); + } else if (errno != EINTR) { + cork_system_error_set(); + return -1; + } + } +} + +int +cork_consume_file_from_path(struct cork_stream_consumer *consumer, + const char *path, int flags) +{ + int fd; + rii_check_posix(fd = open(path, flags)); + ei_check(cork_consume_fd(consumer, fd)); + rii_check_posix(close(fd)); + return 0; + +error: + rii_check_posix(close(fd)); + return -1; +} + + +/*----------------------------------------------------------------------- + * Consumers + */ + +struct cork_file_consumer { + struct cork_stream_consumer parent; + FILE *fp; +}; + +static int +cork_file_consumer__data(struct cork_stream_consumer *vself, + const void *buf, size_t size, bool is_first) +{ + struct cork_file_consumer *self = + cork_container_of(vself, struct cork_file_consumer, parent); + size_t bytes_written = fwrite(buf, 1, size, self->fp); + /* If there was an error writing to the file, then signal this to + * the producer */ + if (bytes_written == size) { + return 0; + } else { + cork_system_error_set(); + return -1; + } +} + +static int +cork_file_consumer__eof(struct cork_stream_consumer *vself) +{ + /* We never close the file with this version of the consumer, so there's + * nothing special to do at end-of-stream. */ + return 0; +} + +static void +cork_file_consumer__free(struct cork_stream_consumer *vself) +{ + struct cork_file_consumer *self = + cork_container_of(vself, struct cork_file_consumer, parent); + cork_delete(struct cork_file_consumer, self); +} + +struct cork_stream_consumer * +cork_file_consumer_new(FILE *fp) +{ + struct cork_file_consumer *self = cork_new(struct cork_file_consumer); + self->parent.data = cork_file_consumer__data; + self->parent.eof = cork_file_consumer__eof; + self->parent.free = cork_file_consumer__free; + self->fp = fp; + return &self->parent; +} + + +struct cork_fd_consumer { + struct cork_stream_consumer parent; + int fd; +}; + +static int +cork_fd_consumer__data(struct cork_stream_consumer *vself, + const void *buf, size_t size, bool is_first) +{ + struct cork_fd_consumer *self = + cork_container_of(vself, struct cork_fd_consumer, parent); + size_t bytes_left = size; + + while (bytes_left > 0) { + ssize_t rc = write(self->fd, buf, bytes_left); + if (rc == -1 && errno != EINTR) { + cork_system_error_set(); + return -1; + } else { + bytes_left -= rc; + buf += rc; + } + } + + return 0; +} + +static int +cork_fd_consumer__eof_close(struct cork_stream_consumer *vself) +{ + int rc; + struct cork_fd_consumer *self = + cork_container_of(vself, struct cork_fd_consumer, parent); + rii_check_posix(rc = close(self->fd)); + return 0; +} + +static void +cork_fd_consumer__free(struct cork_stream_consumer *vself) +{ + struct cork_fd_consumer *self = + cork_container_of(vself, struct cork_fd_consumer, parent); + cork_delete(struct cork_fd_consumer, self); +} + +struct cork_stream_consumer * +cork_fd_consumer_new(int fd) +{ + struct cork_fd_consumer *self = cork_new(struct cork_fd_consumer); + self->parent.data = cork_fd_consumer__data; + /* We don't want to close fd, so we reuse file_consumer's eof method */ + self->parent.eof = cork_file_consumer__eof; + self->parent.free = cork_fd_consumer__free; + self->fd = fd; + return &self->parent; +} + +struct cork_stream_consumer * +cork_file_from_path_consumer_new(const char *path, int flags) +{ + + int fd; + struct cork_fd_consumer *self; + + rpi_check_posix(fd = open(path, flags)); + self = cork_new(struct cork_fd_consumer); + self->parent.data = cork_fd_consumer__data; + self->parent.eof = cork_fd_consumer__eof_close; + self->parent.free = cork_fd_consumer__free; + self->fd = fd; + return &self->parent; +} diff --git a/shadowsocksr-libev/src/libcork/ds/hash-table.c b/shadowsocksr-libev/src/libcork/ds/hash-table.c new file mode 100644 index 000000000..280a7bd66 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/ds/hash-table.c @@ -0,0 +1,689 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include + +#include "libcork/core/callbacks.h" +#include "libcork/core/hash.h" +#include "libcork/core/types.h" +#include "libcork/ds/dllist.h" +#include "libcork/ds/hash-table.h" +#include "libcork/helpers/errors.h" + +#ifndef CORK_HASH_TABLE_DEBUG +#define CORK_HASH_TABLE_DEBUG 0 +#endif + +#if CORK_HASH_TABLE_DEBUG +#include +#define DEBUG(...) \ + do { \ + fprintf(stderr, __VA_ARGS__); \ + fprintf(stderr, "\n"); \ + } while (0) +#else +#define DEBUG(...) /* nothing */ +#endif + + +/*----------------------------------------------------------------------- + * Hash tables + */ + +struct cork_hash_table_entry_priv { + struct cork_hash_table_entry public; + struct cork_dllist_item in_bucket; + struct cork_dllist_item insertion_order; +}; + +struct cork_hash_table { + struct cork_dllist *bins; + struct cork_dllist insertion_order; + size_t bin_count; + size_t bin_mask; + size_t entry_count; + void *user_data; + cork_free_f free_user_data; + cork_hash_f hash; + cork_equals_f equals; + cork_free_f free_key; + cork_free_f free_value; +}; + +static cork_hash +cork_hash_table__default_hash(void *user_data, const void *key) +{ + return (cork_hash) (uintptr_t) key; +} + +static bool +cork_hash_table__default_equals(void *user_data, + const void *key1, const void *key2) +{ + return key1 == key2; +} + + +/* The default initial number of bins to allocate in a new table. */ +#define CORK_HASH_TABLE_DEFAULT_INITIAL_SIZE 8 + +/* The default number of entries per bin to allow before increasing the + * number of bins. */ +#define CORK_HASH_TABLE_MAX_DENSITY 5 + +/* Return a power-of-2 bin count that's at least as big as the given requested + * size. */ +static inline size_t +cork_hash_table_new_size(size_t desired_count) +{ + size_t v = desired_count; + size_t r = 1; + while (v >>= 1) { + r <<= 1; + } + if (r != desired_count) { + r <<= 1; + } + return r; +} + +#define bin_index(table, hash) ((hash) & (table)->bin_mask) + +/* Allocates a new bins array in a hash table. We overwrite the old + * array, so make sure to stash it away somewhere safe first. */ +static void +cork_hash_table_allocate_bins(struct cork_hash_table *table, + size_t desired_count) +{ + size_t i; + + table->bin_count = cork_hash_table_new_size(desired_count); + table->bin_mask = table->bin_count - 1; + DEBUG("Allocate %zu bins", table->bin_count); + table->bins = cork_calloc(table->bin_count, sizeof(struct cork_dllist)); + for (i = 0; i < table->bin_count; i++) { + cork_dllist_init(&table->bins[i]); + } +} + + +static struct cork_hash_table_entry_priv * +cork_hash_table_new_entry(struct cork_hash_table *table, + cork_hash hash, void *key, void *value) +{ + struct cork_hash_table_entry_priv *entry = + cork_new(struct cork_hash_table_entry_priv); + cork_dllist_add(&table->insertion_order, &entry->insertion_order); + entry->public.hash = hash; + entry->public.key = key; + entry->public.value = value; + return entry; +} + +static void +cork_hash_table_free_entry(struct cork_hash_table *table, + struct cork_hash_table_entry_priv *entry) +{ + if (table->free_key != NULL) { + table->free_key(entry->public.key); + } + if (table->free_value != NULL) { + table->free_value(entry->public.value); + } + cork_dllist_remove(&entry->insertion_order); + cork_delete(struct cork_hash_table_entry_priv, entry); +} + + +struct cork_hash_table * +cork_hash_table_new(size_t initial_size, unsigned int flags) +{ + struct cork_hash_table *table = cork_new(struct cork_hash_table); + table->entry_count = 0; + table->user_data = NULL; + table->free_user_data = NULL; + table->hash = cork_hash_table__default_hash; + table->equals = cork_hash_table__default_equals; + table->free_key = NULL; + table->free_value = NULL; + cork_dllist_init(&table->insertion_order); + if (initial_size < CORK_HASH_TABLE_DEFAULT_INITIAL_SIZE) { + initial_size = CORK_HASH_TABLE_DEFAULT_INITIAL_SIZE; + } + cork_hash_table_allocate_bins(table, initial_size); + return table; +} + +void +cork_hash_table_clear(struct cork_hash_table *table) +{ + size_t i; + struct cork_dllist_item *curr; + struct cork_dllist_item *next; + + DEBUG("(clear) Remove all entries"); + for (curr = cork_dllist_start(&table->insertion_order); + !cork_dllist_is_end(&table->insertion_order, curr); + curr = next) { + struct cork_hash_table_entry_priv *entry = + cork_container_of + (curr, struct cork_hash_table_entry_priv, insertion_order); + next = curr->next; + cork_hash_table_free_entry(table, entry); + } + cork_dllist_init(&table->insertion_order); + + DEBUG("(clear) Clear bins"); + for (i = 0; i < table->bin_count; i++) { + DEBUG(" Bin %zu", i); + cork_dllist_init(&table->bins[i]); + } + + table->entry_count = 0; +} + +void +cork_hash_table_free(struct cork_hash_table *table) +{ + cork_hash_table_clear(table); + cork_cfree(table->bins, table->bin_count, sizeof(struct cork_dllist)); + cork_delete(struct cork_hash_table, table); +} + +size_t +cork_hash_table_size(const struct cork_hash_table *table) +{ + return table->entry_count; +} + +void +cork_hash_table_set_user_data(struct cork_hash_table *table, + void *user_data, cork_free_f free_user_data) +{ + table->user_data = user_data; + table->free_user_data = free_user_data; +} + +void +cork_hash_table_set_hash(struct cork_hash_table *table, cork_hash_f hash) +{ + table->hash = hash; +} + +void +cork_hash_table_set_equals(struct cork_hash_table *table, cork_equals_f equals) +{ + table->equals = equals; +} + +void +cork_hash_table_set_free_key(struct cork_hash_table *table, cork_free_f free) +{ + table->free_key = free; +} + +void +cork_hash_table_set_free_value(struct cork_hash_table *table, cork_free_f free) +{ + table->free_value = free; +} + + +void +cork_hash_table_ensure_size(struct cork_hash_table *table, size_t desired_count) +{ + if (desired_count > table->bin_count) { + struct cork_dllist *old_bins = table->bins; + size_t old_bin_count = table->bin_count; + + cork_hash_table_allocate_bins(table, desired_count); + + if (old_bins != NULL) { + size_t i; + for (i = 0; i < old_bin_count; i++) { + struct cork_dllist *bin = &old_bins[i]; + struct cork_dllist_item *curr = cork_dllist_start(bin); + while (!cork_dllist_is_end(bin, curr)) { + struct cork_hash_table_entry_priv *entry = + cork_container_of + (curr, struct cork_hash_table_entry_priv, in_bucket); + struct cork_dllist_item *next = curr->next; + + size_t bin_index = bin_index(table, entry->public.hash); + DEBUG(" Rehash %p from bin %zu to bin %zu", + entry, i, bin_index); + cork_dllist_add(&table->bins[bin_index], curr); + + curr = next; + } + } + + cork_cfree(old_bins, old_bin_count, sizeof(struct cork_dllist)); + } + } +} + + +static void +cork_hash_table_rehash(struct cork_hash_table *table) +{ + DEBUG(" Reached maximum density; rehash"); + cork_hash_table_ensure_size(table, table->bin_count + 1); +} + + +struct cork_hash_table_entry * +cork_hash_table_get_entry_hash(const struct cork_hash_table *table, + cork_hash hash, const void *key) +{ + size_t bin_index; + struct cork_dllist *bin; + struct cork_dllist_item *curr; + + if (table->bin_count == 0) { + DEBUG("(get) Empty table when searching for key %p " + "(hash 0x%08" PRIx32 ")", + key, hash); + return NULL; + } + + bin_index = bin_index(table, hash); + DEBUG("(get) Search for key %p (hash 0x%08" PRIx32 ", bin %zu)", + key, hash, bin_index); + + bin = &table->bins[bin_index]; + curr = cork_dllist_start(bin); + while (!cork_dllist_is_end(bin, curr)) { + struct cork_hash_table_entry_priv *entry = + cork_container_of + (curr, struct cork_hash_table_entry_priv, in_bucket); + + DEBUG(" Check entry %p", entry); + if (table->equals(table->user_data, key, entry->public.key)) { + DEBUG(" Match"); + return &entry->public; + } + + curr = curr->next; + } + + DEBUG(" Entry not found"); + return NULL; +} + +struct cork_hash_table_entry * +cork_hash_table_get_entry(const struct cork_hash_table *table, const void *key) +{ + cork_hash hash = table->hash(table->user_data, key); + return cork_hash_table_get_entry_hash(table, hash, key); +} + +void * +cork_hash_table_get_hash(const struct cork_hash_table *table, + cork_hash hash, const void *key) +{ + struct cork_hash_table_entry *entry = + cork_hash_table_get_entry_hash(table, hash, key); + if (entry == NULL) { + return NULL; + } else { + DEBUG(" Extract value pointer %p", entry->value); + return entry->value; + } +} + +void * +cork_hash_table_get(const struct cork_hash_table *table, const void *key) +{ + struct cork_hash_table_entry *entry = + cork_hash_table_get_entry(table, key); + if (entry == NULL) { + return NULL; + } else { + DEBUG(" Extract value pointer %p", entry->value); + return entry->value; + } +} + + +struct cork_hash_table_entry * +cork_hash_table_get_or_create_hash(struct cork_hash_table *table, + cork_hash hash, void *key, bool *is_new) +{ + struct cork_hash_table_entry_priv *entry; + size_t bin_index; + + if (table->bin_count > 0) { + struct cork_dllist *bin; + struct cork_dllist_item *curr; + + bin_index = bin_index(table, hash); + DEBUG("(get_or_create) Search for key %p " + "(hash 0x%08" PRIx32 ", bin %zu)", + key, hash, bin_index); + + bin = &table->bins[bin_index]; + curr = cork_dllist_start(bin); + while (!cork_dllist_is_end(bin, curr)) { + struct cork_hash_table_entry_priv *entry = + cork_container_of + (curr, struct cork_hash_table_entry_priv, in_bucket); + + DEBUG(" Check entry %p", entry); + if (table->equals(table->user_data, key, entry->public.key)) { + DEBUG(" Match"); + DEBUG(" Return value pointer %p", entry->public.value); + *is_new = false; + return &entry->public; + } + + curr = curr->next; + } + + /* create a new entry */ + DEBUG(" Entry not found"); + + if ((table->entry_count / table->bin_count) > + CORK_HASH_TABLE_MAX_DENSITY) { + cork_hash_table_rehash(table); + bin_index = bin_index(table, hash); + } + } else { + DEBUG("(get_or_create) Search for key %p (hash 0x%08" PRIx32 ")", + key, hash); + DEBUG(" Empty table"); + cork_hash_table_rehash(table); + bin_index = bin_index(table, hash); + } + + DEBUG(" Allocate new entry"); + entry = cork_hash_table_new_entry(table, hash, key, NULL); + DEBUG(" Created new entry %p", entry); + + DEBUG(" Add entry into bin %zu", bin_index); + cork_dllist_add(&table->bins[bin_index], &entry->in_bucket); + + table->entry_count++; + *is_new = true; + return &entry->public; +} + +struct cork_hash_table_entry * +cork_hash_table_get_or_create(struct cork_hash_table *table, + void *key, bool *is_new) +{ + cork_hash hash = table->hash(table->user_data, key); + return cork_hash_table_get_or_create_hash(table, hash, key, is_new); +} + + +void +cork_hash_table_put_hash(struct cork_hash_table *table, + cork_hash hash, void *key, void *value, + bool *is_new, void **old_key, void **old_value) +{ + struct cork_hash_table_entry_priv *entry; + size_t bin_index; + + if (table->bin_count > 0) { + struct cork_dllist *bin; + struct cork_dllist_item *curr; + + bin_index = bin_index(table, hash); + DEBUG("(put) Search for key %p (hash 0x%08" PRIx32 ", bin %zu)", + key, hash, bin_index); + + bin = &table->bins[bin_index]; + curr = cork_dllist_start(bin); + while (!cork_dllist_is_end(bin, curr)) { + struct cork_hash_table_entry_priv *entry = + cork_container_of + (curr, struct cork_hash_table_entry_priv, in_bucket); + + DEBUG(" Check entry %p", entry); + if (table->equals(table->user_data, key, entry->public.key)) { + DEBUG(" Found existing entry; overwriting"); + DEBUG(" Return old key %p", entry->public.key); + if (old_key != NULL) { + *old_key = entry->public.key; + } + DEBUG(" Return old value %p", entry->public.value); + if (old_value != NULL) { + *old_value = entry->public.value; + } + DEBUG(" Copy key %p into entry", key); + entry->public.key = key; + DEBUG(" Copy value %p into entry", value); + entry->public.value = value; + if (is_new != NULL) { + *is_new = false; + } + return; + } + + curr = curr->next; + } + + /* create a new entry */ + DEBUG(" Entry not found"); + if ((table->entry_count / table->bin_count) > + CORK_HASH_TABLE_MAX_DENSITY) { + cork_hash_table_rehash(table); + bin_index = bin_index(table, hash); + } + } else { + DEBUG("(put) Search for key %p (hash 0x%08" PRIx32 ")", + key, hash); + DEBUG(" Empty table"); + cork_hash_table_rehash(table); + bin_index = bin_index(table, hash); + } + + DEBUG(" Allocate new entry"); + entry = cork_hash_table_new_entry(table, hash, key, value); + DEBUG(" Created new entry %p", entry); + + DEBUG(" Add entry into bin %zu", bin_index); + cork_dllist_add(&table->bins[bin_index], &entry->in_bucket); + + table->entry_count++; + if (old_key != NULL) { + *old_key = NULL; + } + if (old_value != NULL) { + *old_value = NULL; + } + if (is_new != NULL) { + *is_new = true; + } +} + +void +cork_hash_table_put(struct cork_hash_table *table, + void *key, void *value, + bool *is_new, void **old_key, void **old_value) +{ + cork_hash hash = table->hash(table->user_data, key); + cork_hash_table_put_hash + (table, hash, key, value, is_new, old_key, old_value); +} + + +void +cork_hash_table_delete_entry(struct cork_hash_table *table, + struct cork_hash_table_entry *ventry) +{ + struct cork_hash_table_entry_priv *entry = + cork_container_of(ventry, struct cork_hash_table_entry_priv, public); + cork_dllist_remove(&entry->in_bucket); + table->entry_count--; + cork_hash_table_free_entry(table, entry); +} + + +bool +cork_hash_table_delete_hash(struct cork_hash_table *table, + cork_hash hash, const void *key, + void **deleted_key, void **deleted_value) +{ + size_t bin_index; + struct cork_dllist *bin; + struct cork_dllist_item *curr; + + if (table->bin_count == 0) { + DEBUG("(delete) Empty table when searching for key %p " + "(hash 0x%08" PRIx32 ")", + key, hash); + return false; + } + + bin_index = bin_index(table, hash); + DEBUG("(delete) Search for key %p (hash 0x%08" PRIx32 ", bin %zu)", + key, hash, bin_index); + + bin = &table->bins[bin_index]; + curr = cork_dllist_start(bin); + while (!cork_dllist_is_end(bin, curr)) { + struct cork_hash_table_entry_priv *entry = + cork_container_of + (curr, struct cork_hash_table_entry_priv, in_bucket); + + DEBUG(" Check entry %p", entry); + if (table->equals(table->user_data, key, entry->public.key)) { + DEBUG(" Match"); + if (deleted_key != NULL) { + *deleted_key = entry->public.key; + } + if (deleted_value != NULL) { + *deleted_value = entry->public.value; + } + + DEBUG(" Remove entry from hash bin %zu", bin_index); + cork_dllist_remove(curr); + table->entry_count--; + + DEBUG(" Free entry %p", entry); + cork_hash_table_free_entry(table, entry); + return true; + } + + curr = curr->next; + } + + DEBUG(" Entry not found"); + return false; +} + +bool +cork_hash_table_delete(struct cork_hash_table *table, const void *key, + void **deleted_key, void **deleted_value) +{ + cork_hash hash = table->hash(table->user_data, key); + return cork_hash_table_delete_hash + (table, hash, key, deleted_key, deleted_value); +} + + +void +cork_hash_table_map(struct cork_hash_table *table, void *user_data, + cork_hash_table_map_f map) +{ + struct cork_dllist_item *curr; + DEBUG("Map across hash table"); + + curr = cork_dllist_start(&table->insertion_order); + while (!cork_dllist_is_end(&table->insertion_order, curr)) { + struct cork_hash_table_entry_priv *entry = + cork_container_of + (curr, struct cork_hash_table_entry_priv, insertion_order); + struct cork_dllist_item *next = curr->next; + enum cork_hash_table_map_result result; + + DEBUG(" Apply function to entry %p", entry); + result = map(user_data, &entry->public); + + if (result == CORK_HASH_TABLE_MAP_ABORT) { + return; + } else if (result == CORK_HASH_TABLE_MAP_DELETE) { + DEBUG(" Delete requested"); + cork_dllist_remove(curr); + cork_dllist_remove(&entry->in_bucket); + table->entry_count--; + cork_hash_table_free_entry(table, entry); + } + + curr = next; + } +} + + +void +cork_hash_table_iterator_init(struct cork_hash_table *table, + struct cork_hash_table_iterator *iterator) +{ + DEBUG("Iterate through hash table"); + iterator->table = table; + iterator->priv = cork_dllist_start(&table->insertion_order); +} + + +struct cork_hash_table_entry * +cork_hash_table_iterator_next(struct cork_hash_table_iterator *iterator) +{ + struct cork_hash_table *table = iterator->table; + struct cork_dllist_item *curr = iterator->priv; + struct cork_hash_table_entry_priv *entry; + + if (cork_dllist_is_end(&table->insertion_order, curr)) { + return NULL; + } + + entry = cork_container_of + (curr, struct cork_hash_table_entry_priv, insertion_order); + DEBUG(" Return entry %p", entry); + iterator->priv = curr->next; + return &entry->public; +} + + +/*----------------------------------------------------------------------- + * Built-in key types + */ + +static cork_hash +string_hash(void *user_data, const void *vk) +{ + const char *k = vk; + size_t len = strlen(k); + return cork_hash_buffer(0, k, len); +} + +static bool +string_equals(void *user_data, const void *vk1, const void *vk2) +{ + const char *k1 = vk1; + const char *k2 = vk2; + return strcmp(k1, k2) == 0; +} + +struct cork_hash_table * +cork_string_hash_table_new(size_t initial_size, unsigned int flags) +{ + struct cork_hash_table *table = cork_hash_table_new(initial_size, flags); + cork_hash_table_set_hash(table, string_hash); + cork_hash_table_set_equals(table, string_equals); + return table; +} + +struct cork_hash_table * +cork_pointer_hash_table_new(size_t initial_size, unsigned int flags) +{ + return cork_hash_table_new(initial_size, flags); +} diff --git a/shadowsocksr-libev/src/libcork/ds/managed-buffer.c b/shadowsocksr-libev/src/libcork/ds/managed-buffer.c new file mode 100644 index 000000000..830b88f17 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/ds/managed-buffer.c @@ -0,0 +1,240 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include + +#include "libcork/core/error.h" +#include "libcork/core/types.h" +#include "libcork/ds/managed-buffer.h" +#include "libcork/ds/slice.h" +#include "libcork/helpers/errors.h" + + +/*----------------------------------------------------------------------- + * Error handling + */ + +static void +cork_slice_invalid_slice_set(size_t buf_size, size_t requested_offset, + size_t requested_length) +{ + cork_error_set + (CORK_SLICE_ERROR, CORK_SLICE_INVALID_SLICE, + "Cannot slice %zu-byte buffer at %zu:%zu", + buf_size, requested_offset, requested_length); +} + + +/*----------------------------------------------------------------------- + * Managed buffers + */ + +struct cork_managed_buffer_wrapped { + struct cork_managed_buffer parent; + void *buf; + size_t size; + cork_managed_buffer_freer free; +}; + +static void +cork_managed_buffer_wrapped__free(struct cork_managed_buffer *vself) +{ + struct cork_managed_buffer_wrapped *self = + cork_container_of(vself, struct cork_managed_buffer_wrapped, parent); + self->free(self->buf, self->size); + cork_delete(struct cork_managed_buffer_wrapped, self); +} + +static struct cork_managed_buffer_iface CORK_MANAGED_BUFFER_WRAPPED = { + cork_managed_buffer_wrapped__free +}; + +struct cork_managed_buffer * +cork_managed_buffer_new(const void *buf, size_t size, + cork_managed_buffer_freer free) +{ + /* + DEBUG("Creating new struct cork_managed_buffer [%p:%zu], refcount now 1", + buf, size); + */ + + struct cork_managed_buffer_wrapped *self = + cork_new(struct cork_managed_buffer_wrapped); + self->parent.buf = buf; + self->parent.size = size; + self->parent.ref_count = 1; + self->parent.iface = &CORK_MANAGED_BUFFER_WRAPPED; + self->buf = (void *) buf; + self->size = size; + self->free = free; + return &self->parent; +} + + +struct cork_managed_buffer_copied { + struct cork_managed_buffer parent; +}; + +#define cork_managed_buffer_copied_data(self) \ + (((void *) (self)) + sizeof(struct cork_managed_buffer_copied)) + +#define cork_managed_buffer_copied_sizeof(sz) \ + ((sz) + sizeof(struct cork_managed_buffer_copied)) + +static void +cork_managed_buffer_copied__free(struct cork_managed_buffer *vself) +{ + struct cork_managed_buffer_copied *self = + cork_container_of(vself, struct cork_managed_buffer_copied, parent); + size_t allocated_size = + cork_managed_buffer_copied_sizeof(self->parent.size); + cork_free(self, allocated_size); +} + +static struct cork_managed_buffer_iface CORK_MANAGED_BUFFER_COPIED = { + cork_managed_buffer_copied__free +}; + +struct cork_managed_buffer * +cork_managed_buffer_new_copy(const void *buf, size_t size) +{ + size_t allocated_size = cork_managed_buffer_copied_sizeof(size); + struct cork_managed_buffer_copied *self = cork_malloc(allocated_size); + if (self == NULL) { + return NULL; + } + + self->parent.buf = cork_managed_buffer_copied_data(self); + self->parent.size = size; + self->parent.ref_count = 1; + self->parent.iface = &CORK_MANAGED_BUFFER_COPIED; + memcpy((void *) self->parent.buf, buf, size); + return &self->parent; +} + + +static void +cork_managed_buffer_free(struct cork_managed_buffer *self) +{ + /* + DEBUG("Freeing struct cork_managed_buffer [%p:%zu]", self->buf, self->size); + */ + + self->iface->free(self); +} + + +struct cork_managed_buffer * +cork_managed_buffer_ref(struct cork_managed_buffer *self) +{ + /* + int old_count = self->ref_count++; + DEBUG("Referencing struct cork_managed_buffer [%p:%zu], refcount now %d", + self->buf, self->size, old_count + 1); + */ + + self->ref_count++; + return self; +} + + +void +cork_managed_buffer_unref(struct cork_managed_buffer *self) +{ + /* + int old_count = self->ref_count--; + DEBUG("Dereferencing struct cork_managed_buffer [%p:%zu], refcount now %d", + self->buf, self->size, old_count - 1); + */ + + if (--self->ref_count == 0) { + cork_managed_buffer_free(self); + } +} + + +static struct cork_slice_iface CORK_MANAGED_BUFFER__SLICE; + +static void +cork_managed_buffer__slice_free(struct cork_slice *self) +{ + struct cork_managed_buffer *mbuf = self->user_data; + cork_managed_buffer_unref(mbuf); +} + +static int +cork_managed_buffer__slice_copy(struct cork_slice *dest, + const struct cork_slice *src, + size_t offset, size_t length) +{ + struct cork_managed_buffer *mbuf = src->user_data; + dest->buf = src->buf + offset; + dest->size = length; + dest->iface = &CORK_MANAGED_BUFFER__SLICE; + dest->user_data = cork_managed_buffer_ref(mbuf); + return 0; +} + +static struct cork_slice_iface CORK_MANAGED_BUFFER__SLICE = { + cork_managed_buffer__slice_free, + cork_managed_buffer__slice_copy, + cork_managed_buffer__slice_copy, + NULL +}; + + +int +cork_managed_buffer_slice(struct cork_slice *dest, + struct cork_managed_buffer *buffer, + size_t offset, size_t length) +{ + if ((buffer != NULL) && + (offset <= buffer->size) && + ((offset + length) <= buffer->size)) { + /* + DEBUG("Slicing [%p:%zu] at %zu:%zu, gives <%p:%zu>", + buffer->buf, buffer->size, + offset, length, + buffer->buf + offset, length); + */ + dest->buf = buffer->buf + offset; + dest->size = length; + dest->iface = &CORK_MANAGED_BUFFER__SLICE; + dest->user_data = cork_managed_buffer_ref(buffer); + return 0; + } + + else { + /* + DEBUG("Cannot slice [%p:%zu] at %zu:%zu", + buffer->buf, buffer->size, + offset, length); + */ + cork_slice_clear(dest); + cork_slice_invalid_slice_set(0, offset, 0); + return -1; + } +} + + +int +cork_managed_buffer_slice_offset(struct cork_slice *dest, + struct cork_managed_buffer *buffer, + size_t offset) +{ + if (buffer == NULL) { + cork_slice_clear(dest); + cork_slice_invalid_slice_set(0, offset, 0); + return -1; + } else { + return cork_managed_buffer_slice + (dest, buffer, offset, buffer->size - offset); + } +} diff --git a/shadowsocksr-libev/src/libcork/ds/ring-buffer.c b/shadowsocksr-libev/src/libcork/ds/ring-buffer.c new file mode 100644 index 000000000..92eb8b9c0 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/ds/ring-buffer.c @@ -0,0 +1,87 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include + +#include "libcork/core/allocator.h" +#include "libcork/core/types.h" +#include "libcork/ds/ring-buffer.h" + + +int +cork_ring_buffer_init(struct cork_ring_buffer *self, size_t size) +{ + self->elements = cork_calloc(size, sizeof(void *)); + self->allocated_size = size; + self->size = 0; + self->read_index = 0; + self->write_index = 0; + return 0; +} + +struct cork_ring_buffer * +cork_ring_buffer_new(size_t size) +{ + struct cork_ring_buffer *buf = cork_new(struct cork_ring_buffer); + cork_ring_buffer_init(buf, size); + return buf; +} + +void +cork_ring_buffer_done(struct cork_ring_buffer *self) +{ + cork_cfree(self->elements, self->allocated_size, sizeof(void *)); +} + +void +cork_ring_buffer_free(struct cork_ring_buffer *buf) +{ + cork_ring_buffer_done(buf); + cork_delete(struct cork_ring_buffer, buf); +} + +int +cork_ring_buffer_add(struct cork_ring_buffer *self, void *element) +{ + if (cork_ring_buffer_is_full(self)) { + return -1; + } + + self->elements[self->write_index++] = element; + self->size++; + if (self->write_index == self->allocated_size) { + self->write_index = 0; + } + return 0; +} + +void * +cork_ring_buffer_pop(struct cork_ring_buffer *self) +{ + if (cork_ring_buffer_is_empty(self)) { + return NULL; + } else { + void *result = self->elements[self->read_index++]; + self->size--; + if (self->read_index == self->allocated_size) { + self->read_index = 0; + } + return result; + } +} + +void * +cork_ring_buffer_peek(struct cork_ring_buffer *self) +{ + if (cork_ring_buffer_is_empty(self)) { + return NULL; + } else { + return self->elements[self->read_index]; + } +} diff --git a/shadowsocksr-libev/src/libcork/ds/slice.c b/shadowsocksr-libev/src/libcork/ds/slice.c new file mode 100644 index 000000000..96d723262 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/ds/slice.c @@ -0,0 +1,297 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#include + +#include "libcork/core/error.h" +#include "libcork/core/types.h" +#include "libcork/ds/managed-buffer.h" +#include "libcork/ds/slice.h" +#include "libcork/helpers/errors.h" + + +/*----------------------------------------------------------------------- + * Error handling + */ + +static void +cork_slice_invalid_slice_set(size_t buf_size, size_t requested_offset, + size_t requested_length) +{ + cork_error_set + (CORK_SLICE_ERROR, CORK_SLICE_INVALID_SLICE, + "Cannot slice %zu-byte buffer at %zu:%zu", + buf_size, requested_offset, requested_length); +} + + +/*----------------------------------------------------------------------- + * Slices + */ + +void +cork_slice_clear(struct cork_slice *slice) +{ + slice->buf = NULL; + slice->size = 0; + slice->iface = NULL; + slice->user_data = NULL; +} + + +int +cork_slice_copy(struct cork_slice *dest, const struct cork_slice *slice, + size_t offset, size_t length) +{ + if ((slice != NULL) && + (offset <= slice->size) && + ((offset + length) <= slice->size)) { + /* + DEBUG("Slicing <%p:%zu> at %zu:%zu, gives <%p:%zu>", + slice->buf, slice->size, + offset, length, + slice->buf + offset, length); + */ + return slice->iface->copy(dest, slice, offset, length); + } + + else { + /* + DEBUG("Cannot slice <%p:%zu> at %zu:%zu", + slice->buf, slice->size, + offset, length); + */ + cork_slice_clear(dest); + cork_slice_invalid_slice_set + ((slice == NULL)? 0: slice->size, offset, length); + return -1; + } +} + + +int +cork_slice_copy_offset(struct cork_slice *dest, const struct cork_slice *slice, + size_t offset) +{ + if (slice == NULL) { + cork_slice_clear(dest); + cork_slice_invalid_slice_set(0, offset, 0); + return -1; + } else { + return cork_slice_copy + (dest, slice, offset, slice->size - offset); + } +} + + +int +cork_slice_light_copy(struct cork_slice *dest, const struct cork_slice *slice, + size_t offset, size_t length) +{ + if ((slice != NULL) && + (offset <= slice->size) && + ((offset + length) <= slice->size)) { + /* + DEBUG("Slicing <%p:%zu> at %zu:%zu, gives <%p:%zu>", + slice->buf, slice->size, + offset, length, + slice->buf + offset, length); + */ + return slice->iface->light_copy(dest, slice, offset, length); + } + + else { + /* + DEBUG("Cannot slice <%p:%zu> at %zu:%zu", + slice->buf, slice->size, + offset, length); + */ + cork_slice_clear(dest); + cork_slice_invalid_slice_set + ((slice == NULL)? 0: slice->size, offset, length); + return -1; + } +} + + +int +cork_slice_light_copy_offset(struct cork_slice *dest, + const struct cork_slice *slice, size_t offset) +{ + if (slice == NULL) { + cork_slice_clear(dest); + cork_slice_invalid_slice_set(0, offset, 0); + return -1; + } else { + return cork_slice_light_copy + (dest, slice, offset, slice->size - offset); + } +} + + +int +cork_slice_slice(struct cork_slice *slice, size_t offset, size_t length) +{ + if ((slice != NULL) && + (offset <= slice->size) && + ((offset + length) <= slice->size)) { + /* + DEBUG("Slicing <%p:%zu> at %zu:%zu, gives <%p:%zu>", + slice->buf, slice->size, + offset, length, + slice->buf + offset, length); + */ + if (slice->iface->slice == NULL) { + slice->buf += offset; + slice->size = length; + return 0; + } else { + return slice->iface->slice(slice, offset, length); + } + } + + else { + /* + DEBUG("Cannot slice <%p:%zu> at %zu:%zu", + slice->buf, slice->size, + offset, length); + */ + if (slice != NULL) + cork_slice_invalid_slice_set(slice->size, offset, length); + return -1; + } +} + + +int +cork_slice_slice_offset(struct cork_slice *slice, size_t offset) +{ + if (slice == NULL) { + cork_slice_invalid_slice_set(0, offset, 0); + return -1; + } else { + return cork_slice_slice + (slice, offset, slice->size - offset); + } +} + + +void +cork_slice_finish(struct cork_slice *slice) +{ + /* + DEBUG("Finalizing <%p:%zu>", dest->buf, dest->size); + */ + + if (slice->iface != NULL && slice->iface->free != NULL) { + slice->iface->free(slice); + } + + cork_slice_clear(slice); +} + + +bool +cork_slice_equal(const struct cork_slice *slice1, + const struct cork_slice *slice2) +{ + if (slice1 == slice2) { + return true; + } + + if (slice1->size != slice2->size) { + return false; + } + + return (memcmp(slice1->buf, slice2->buf, slice1->size) == 0); +} + + +/*----------------------------------------------------------------------- + * Slices of static content + */ + +static struct cork_slice_iface cork_static_slice; + +static int +cork_static_slice_copy(struct cork_slice *dest, const struct cork_slice *src, + size_t offset, size_t length) +{ + dest->buf = src->buf + offset; + dest->size = length; + dest->iface = &cork_static_slice; + dest->user_data = NULL; + return 0; +} + +static struct cork_slice_iface cork_static_slice = { + NULL, + cork_static_slice_copy, + cork_static_slice_copy, + NULL +}; + +void +cork_slice_init_static(struct cork_slice *dest, const void *buf, size_t size) +{ + dest->buf = buf; + dest->size = size; + dest->iface = &cork_static_slice; + dest->user_data = NULL; +} + + +/*----------------------------------------------------------------------- + * Copy-once slices + */ + +static struct cork_slice_iface cork_copy_once_slice; + +static int +cork_copy_once_slice__copy(struct cork_slice *dest, + const struct cork_slice *src, + size_t offset, size_t length) +{ + struct cork_managed_buffer *mbuf = + cork_managed_buffer_new_copy(src->buf, src->size); + rii_check(cork_managed_buffer_slice(dest, mbuf, offset, length)); + rii_check(cork_managed_buffer_slice + ((struct cork_slice *) src, mbuf, 0, src->size)); + cork_managed_buffer_unref(mbuf); + return 0; +} + +static int +cork_copy_once_slice__light_copy(struct cork_slice *dest, + const struct cork_slice *src, + size_t offset, size_t length) +{ + dest->buf = src->buf + offset; + dest->size = length; + dest->iface = &cork_copy_once_slice; + dest->user_data = NULL; + return 0; +} + +static struct cork_slice_iface cork_copy_once_slice = { + NULL, + cork_copy_once_slice__copy, + cork_copy_once_slice__light_copy, + NULL +}; + +void +cork_slice_init_copy_once(struct cork_slice *dest, const void *buf, size_t size) +{ + dest->buf = buf; + dest->size = size; + dest->iface = &cork_copy_once_slice; + dest->user_data = NULL; +} diff --git a/shadowsocksr-libev/src/libcork/include/libcork/cli.h b/shadowsocksr-libev/src/libcork/include/libcork/cli.h new file mode 100644 index 000000000..b5d20c1fa --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/cli.h @@ -0,0 +1,18 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CLI_H +#define LIBCORK_CLI_H + +/*** include all of the parts ***/ + +#include + +#endif /* LIBCORK_CLI_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/cli/commands.h b/shadowsocksr-libev/src/libcork/include/libcork/cli/commands.h new file mode 100644 index 000000000..1569a7419 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/cli/commands.h @@ -0,0 +1,61 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_COMMANDS_H +#define LIBCORK_COMMANDS_H + +#include + + +typedef void +(*cork_leaf_command_run)(int argc, char **argv); + +typedef int +(*cork_option_parser)(int argc, char **argv); + +enum cork_command_type { + CORK_COMMAND_SET, + CORK_LEAF_COMMAND +}; + +struct cork_command { + enum cork_command_type type; + const char *name; + const char *short_desc; + const char *usage_suffix; + const char *full_help; + + int + (*parse_options)(int argc, char **argv); + + struct cork_command **set; + cork_leaf_command_run run; +}; + +#define cork_command_set(name, sd, parse_options, set) \ +{ \ + CORK_COMMAND_SET, name, sd, NULL, NULL, \ + parse_options, set, NULL \ +} + +#define cork_leaf_command(name, sd, us, fh, parse_options, run) \ +{ \ + CORK_LEAF_COMMAND, name, sd, us, fh, \ + parse_options, NULL, run \ +} + +CORK_API void +cork_command_show_help(struct cork_command *command, const char *message); + +CORK_API int +cork_command_main(struct cork_command *root, int argc, char **argv); + + +#endif /* LIBCORK_COMMANDS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/config.h b/shadowsocksr-libev/src/libcork/include/libcork/config.h new file mode 100644 index 000000000..72eb4fb8b --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/config.h @@ -0,0 +1,18 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CONFIG_H +#define LIBCORK_CONFIG_H + +/*** include all of the parts ***/ + +#include + +#endif /* LIBCORK_CONFIG_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/config/arch.h b/shadowsocksr-libev/src/libcork/include/libcork/config/arch.h new file mode 100644 index 000000000..eaed9916b --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/config/arch.h @@ -0,0 +1,45 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CONFIG_ARCH_H +#define LIBCORK_CONFIG_ARCH_H + + +/*----------------------------------------------------------------------- + * Platform + */ + +#if defined(__i386__) || defined(_M_IX86) +#define CORK_CONFIG_ARCH_X86 1 +#else +#define CORK_CONFIG_ARCH_X86 0 +#endif + +#if defined(__x86_64__) || defined(_M_X64) +#define CORK_CONFIG_ARCH_X64 1 +#else +#define CORK_CONFIG_ARCH_X64 0 +#endif + +#if defined(__powerpc__) || defined(__ppc__) +/* GCC-ish compiler */ +#define CORK_CONFIG_ARCH_PPC 1 +#elif defined(_M_PPC) +/* VS-ish compiler */ +#define CORK_CONFIG_ARCH_PPC 1 +#elif defined(_ARCH_PPC) +/* Something called XL C/C++? */ +#define CORK_CONFIG_ARCH_PPC 1 +#else +#define CORK_CONFIG_ARCH_PPC 0 +#endif + + +#endif /* LIBCORK_CONFIG_ARCH_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/config/bsd.h b/shadowsocksr-libev/src/libcork/include/libcork/config/bsd.h new file mode 100644 index 000000000..4c89c0745 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/config/bsd.h @@ -0,0 +1,34 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CONFIG_BSD_H +#define LIBCORK_CONFIG_BSD_H + +/*----------------------------------------------------------------------- + * Endianness + */ + +#include + +#if BYTE_ORDER == BIG_ENDIAN +#define CORK_CONFIG_IS_BIG_ENDIAN 1 +#define CORK_CONFIG_IS_LITTLE_ENDIAN 0 +#elif BYTE_ORDER == LITTLE_ENDIAN +#define CORK_CONFIG_IS_BIG_ENDIAN 0 +#define CORK_CONFIG_IS_LITTLE_ENDIAN 1 +#else +#error "Cannot determine system endianness" +#endif + +#define CORK_HAVE_REALLOCF 1 +#define CORK_HAVE_PTHREADS 1 + + +#endif /* LIBCORK_CONFIG_BSD_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/config/config.h b/shadowsocksr-libev/src/libcork/include/libcork/config/config.h new file mode 100644 index 000000000..50ee6ff70 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/config/config.h @@ -0,0 +1,82 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2015, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CONFIG_CONFIG_H +#define LIBCORK_CONFIG_CONFIG_H + + +/* If you want to skip autodetection, define this to 1, and provide a + * libcork/config/custom.h header file. */ + +#if !defined(CORK_CONFIG_SKIP_AUTODETECT) +#define CORK_CONFIG_SKIP_AUTODETECT 0 +#endif + + +#if CORK_CONFIG_SKIP_AUTODETECT +/* The user has promised that they'll define everything themselves. */ +#include + +#else +/* Otherwise autodetect! */ + + +/**** VERSION ****/ + +#include + + +/**** ARCHITECTURES ****/ + +#include + + +/**** PLATFORMS ****/ +#if (defined(__unix__) || defined(unix)) && !defined(USG) +/* We need this to test for BSD, but it's a good idea to have for + * any brand of Unix.*/ +#include +#endif + +#if defined(__linux) || defined(__CYGWIN__) || defined(__FreeBSD_kernel__) || defined(__GNU__) +/* Do some Linux, kFreeBSD or GNU/Hurd specific autodetection. */ +#include + +#elif defined(__APPLE__) && defined(__MACH__) +/* Do some Mac OS X-specific autodetection. */ +#include + +#elif defined(BSD) && (BSD >= 199103) +/* Do some BSD (4.3 code base or newer)specific autodetection. */ +#include + +#elif defined(__MINGW32__) +/* Do some mingw32 autodetection. */ +#include + +#elif defined(__sun) +/* Do some Solaris autodetection. */ +#include + +#endif /* platforms */ + + +/**** COMPILERS ****/ + +#if defined(__GNUC__) +/* Do some GCC-specific autodetection. */ +#include + +#endif /* compilers */ + + +#endif /* autodetect or not */ + + +#endif /* LIBCORK_CONFIG_CONFIG_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/config/gcc.h b/shadowsocksr-libev/src/libcork/include/libcork/config/gcc.h new file mode 100644 index 000000000..debcbbda8 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/config/gcc.h @@ -0,0 +1,91 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CONFIG_GCC_H +#define LIBCORK_CONFIG_GCC_H + +/* Figure out the GCC version */ + +#if defined(__GNUC_PATCHLEVEL__) +#define CORK_CONFIG_GCC_VERSION (__GNUC__ * 10000 \ + + __GNUC_MINOR__ * 100 \ + + __GNUC_PATCHLEVEL__) +#else +#define CORK_CONFIG_GCC_VERSION (__GNUC__ * 10000 \ + + __GNUC_MINOR__ * 100) +#endif + + +/*----------------------------------------------------------------------- + * Compiler attributes + */ + +/* The GCC assembly syntax has been available basically forever. */ + +#if defined(CORK_CONFIG_GCC_VERSION) +#define CORK_CONFIG_HAVE_GCC_ASM 1 +#else +#define CORK_CONFIG_HAVE_GCC_ASM 0 +#endif + +/* The GCC atomic instrinsics are available as of GCC 4.1.0. */ + +#if CORK_CONFIG_GCC_VERSION >= 40100 +#define CORK_CONFIG_HAVE_GCC_ATOMICS 1 +#else +#define CORK_CONFIG_HAVE_GCC_ATOMICS 0 +#endif + +/* The attributes we want to use are available as of GCC 2.96. */ + +#if CORK_CONFIG_GCC_VERSION >= 29600 +#define CORK_CONFIG_HAVE_GCC_ATTRIBUTES 1 +#else +#define CORK_CONFIG_HAVE_GCC_ATTRIBUTES 0 +#endif + +/* __int128 seems to be available on 64-bit platforms as of GCC 4.6. The + * attribute((mode(TI))) syntax seems to be available as of 4.1. */ + +#if CORK_CONFIG_ARCH_X64 && CORK_CONFIG_GCC_VERSION >= 40600 +#define CORK_CONFIG_HAVE_GCC_INT128 1 +#else +#define CORK_CONFIG_HAVE_GCC_INT128 0 +#endif + +#if CORK_CONFIG_ARCH_X64 && CORK_CONFIG_GCC_VERSION >= 40100 +#define CORK_CONFIG_HAVE_GCC_MODE_ATTRIBUTE 1 +#else +#define CORK_CONFIG_HAVE_GCC_MODE_ATTRIBUTE 0 +#endif + +/* Statement expressions have been available since GCC 3.1. */ + +#if CORK_CONFIG_GCC_VERSION >= 30100 +#define CORK_CONFIG_HAVE_GCC_STATEMENT_EXPRS 1 +#else +#define CORK_CONFIG_HAVE_GCC_STATEMENT_EXPRS 0 +#endif + +/* Thread-local storage has been available since GCC 3.3, but not on Mac + * OS X. Also disable TLS for uClibc*/ + +#if !(defined(__APPLE__) && defined(__MACH__)) +#if CORK_CONFIG_GCC_VERSION >= 30300 && defined(TLS) +#define CORK_CONFIG_HAVE_THREAD_STORAGE_CLASS 1 +#else +#define CORK_CONFIG_HAVE_THREAD_STORAGE_CLASS 0 +#endif +#else +#define CORK_CONFIG_HAVE_THREAD_STORAGE_CLASS 0 +#endif + + +#endif /* LIBCORK_CONFIG_GCC_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/config/linux.h b/shadowsocksr-libev/src/libcork/include/libcork/config/linux.h new file mode 100644 index 000000000..535924d1f --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/config/linux.h @@ -0,0 +1,34 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CONFIG_LINUX_H +#define LIBCORK_CONFIG_LINUX_H + +/*----------------------------------------------------------------------- + * Endianness + */ + +#include + +#if __BYTE_ORDER == __BIG_ENDIAN +#define CORK_CONFIG_IS_BIG_ENDIAN 1 +#define CORK_CONFIG_IS_LITTLE_ENDIAN 0 +#elif __BYTE_ORDER == __LITTLE_ENDIAN +#define CORK_CONFIG_IS_BIG_ENDIAN 0 +#define CORK_CONFIG_IS_LITTLE_ENDIAN 1 +#else +#error "Cannot determine system endianness" +#endif + +#define CORK_HAVE_REALLOCF 0 +#define CORK_HAVE_PTHREADS 1 + + +#endif /* LIBCORK_CONFIG_LINUX_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/config/macosx.h b/shadowsocksr-libev/src/libcork/include/libcork/config/macosx.h new file mode 100644 index 000000000..aa507556a --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/config/macosx.h @@ -0,0 +1,34 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CONFIG_MACOSX_H +#define LIBCORK_CONFIG_MACOSX_H + +/*----------------------------------------------------------------------- + * Endianness + */ + +#include + +#if BYTE_ORDER == BIG_ENDIAN +#define CORK_CONFIG_IS_BIG_ENDIAN 1 +#define CORK_CONFIG_IS_LITTLE_ENDIAN 0 +#elif BYTE_ORDER == LITTLE_ENDIAN +#define CORK_CONFIG_IS_BIG_ENDIAN 0 +#define CORK_CONFIG_IS_LITTLE_ENDIAN 1 +#else +#error "Cannot determine system endianness" +#endif + +#define CORK_HAVE_REALLOCF 1 +#define CORK_HAVE_PTHREADS 1 + + +#endif /* LIBCORK_CONFIG_MACOSX_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/config/mingw32.h b/shadowsocksr-libev/src/libcork/include/libcork/config/mingw32.h new file mode 100644 index 000000000..889822d65 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/config/mingw32.h @@ -0,0 +1,54 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CONFIG_MINGW32_H +#define LIBCORK_CONFIG_MINGW32_H + +#include + +/*----------------------------------------------------------------------- + * Endianness + */ + +/* Assume MinGW32 only works on x86 platform */ + +#define CORK_CONFIG_IS_BIG_ENDIAN 0 +#define CORK_CONFIG_IS_LITTLE_ENDIAN 1 + +#define CORK_HAVE_REALLOCF 0 +#define CORK_HAVE_PTHREADS 1 + +/* + * File io stuff. Odd that this is not defined by MinGW. + * Maybe there is an M$ish way to do it. + */ +#define F_SETFL 4 +#define O_NONBLOCK 0x4000 /* non blocking I/O (POSIX style) */ + +#define F_GETFD 1 +#define F_SETFD 2 +#define FD_CLOEXEC 0x1 + +#define WNOHANG 1 + +/* + * simple adaptors + */ + +static inline int mingw_mkdir(const char *path, int mode) +{ + return mkdir(path); +} +#define mkdir mingw_mkdir + +#define S_ISLNK(x) 0 + + +#endif /* LIBCORK_CONFIG_MINGW32_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/config/solaris.h b/shadowsocksr-libev/src/libcork/include/libcork/config/solaris.h new file mode 100644 index 000000000..6001b9a00 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/config/solaris.h @@ -0,0 +1,34 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CONFIG_SOLARIS_H +#define LIBCORK_CONFIG_SOLARIS_H + +/*----------------------------------------------------------------------- + * Endianness + */ + +#include + +#if defined(_BIG_ENDIAN) +#define CORK_CONFIG_IS_BIG_ENDIAN 1 +#define CORK_CONFIG_IS_LITTLE_ENDIAN 0 +#elif defined(_LITTLE_ENDIAN) +#define CORK_CONFIG_IS_BIG_ENDIAN 0 +#define CORK_CONFIG_IS_LITTLE_ENDIAN 1 +#else +#error "Cannot determine system endianness" +#endif + +#define CORK_HAVE_REALLOCF 0 +#define CORK_HAVE_PTHREADS 1 + + +#endif /* LIBCORK_CONFIG_SOLARIS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/config/version.h b/shadowsocksr-libev/src/libcork/include/libcork/config/version.h new file mode 100644 index 000000000..3072377fa --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/config/version.h @@ -0,0 +1,25 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2015, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CONFIG_VERSION_H +#define LIBCORK_CONFIG_VERSION_H + + +/*----------------------------------------------------------------------- + * Library version + */ + +#define CORK_CONFIG_VERSION_MAJOR 0 +#define CORK_CONFIG_VERSION_MINOR 15 +#define CORK_CONFIG_VERSION_PATCH 0 +#define CORK_CONFIG_VERSION_STRING "0.15.0" +#define CORK_CONFIG_REVISION "d6ecc2cfbcdf5013038a72b4544f7d9e6eb8f92d" + + +#endif /* LIBCORK_CONFIG_VERSION_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core.h b/shadowsocksr-libev/src/libcork/include/libcork/core.h new file mode 100644 index 000000000..083e18fcd --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core.h @@ -0,0 +1,29 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_H +#define LIBCORK_CORE_H + +/*** include all of the parts ***/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#endif /* LIBCORK_CORE_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/allocator.h b/shadowsocksr-libev/src/libcork/include/libcork/core/allocator.h new file mode 100644 index 000000000..11fc0f028 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/allocator.h @@ -0,0 +1,409 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_ALLOCATOR_H +#define LIBCORK_CORE_ALLOCATOR_H + +#include +#include + +#include +#include +#include +#include +#include + + +/*----------------------------------------------------------------------- + * Allocator interface + */ + +struct cork_alloc; + +typedef void * +(*cork_alloc_calloc_f)(const struct cork_alloc *alloc, + size_t count, size_t size); + +typedef void * +(*cork_alloc_malloc_f)(const struct cork_alloc *alloc, size_t size); + +/* Must not free `ptr` if allocation fails. */ +typedef void * +(*cork_alloc_realloc_f)(const struct cork_alloc *alloc, void *ptr, + size_t old_size, size_t new_size); + +typedef void +(*cork_alloc_free_f)(const struct cork_alloc *alloc, void *ptr, size_t size); + +struct cork_alloc { + const struct cork_alloc *parent; + void *user_data; + cork_free_f free_user_data; + cork_alloc_calloc_f calloc; + cork_alloc_malloc_f malloc; + cork_alloc_realloc_f realloc; + cork_alloc_calloc_f xcalloc; + cork_alloc_malloc_f xmalloc; + cork_alloc_realloc_f xrealloc; + cork_alloc_free_f free; +}; + +/* NOT thread-safe; must be called before most other libcork functions. + * Allocator will automatically be freed at process exit. */ +CORK_API struct cork_alloc * +cork_alloc_new_alloc(const struct cork_alloc *parent); + + +CORK_API void +cork_alloc_set_user_data(struct cork_alloc *alloc, + void *user_data, cork_free_f free_user_data); + +/* These variants must always return a valid pointer. If allocation fails, they + * should abort the process or transfer control in some other way to an error + * handler or cleanup routine. + * + * If you only provide implementations of the `x` variants, we'll provide + * default implementations of these that abort the process if a memory + * allocation fails. */ + +CORK_API void +cork_alloc_set_calloc(struct cork_alloc *alloc, cork_alloc_calloc_f calloc); + +CORK_API void +cork_alloc_set_malloc(struct cork_alloc *alloc, cork_alloc_malloc_f malloc); + +CORK_API void +cork_alloc_set_realloc(struct cork_alloc *alloc, cork_alloc_realloc_f realloc); + +/* These variants can return a NULL pointer if allocation fails. */ + +CORK_API void +cork_alloc_set_xcalloc(struct cork_alloc *alloc, cork_alloc_calloc_f xcalloc); + +CORK_API void +cork_alloc_set_xmalloc(struct cork_alloc *alloc, cork_alloc_malloc_f xmalloc); + +CORK_API void +cork_alloc_set_xrealloc(struct cork_alloc *alloc, + cork_alloc_realloc_f xrealloc); + + +CORK_API void +cork_alloc_set_free(struct cork_alloc *alloc, cork_alloc_free_f free); + + +/* Low-level use of an allocator. */ + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_alloc_calloc(const struct cork_alloc *alloc, size_t count, size_t size) +{ + return alloc->calloc(alloc, count, size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_alloc_malloc(const struct cork_alloc *alloc, size_t size) +{ + return alloc->malloc(alloc, size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_alloc_realloc(const struct cork_alloc *alloc, void *ptr, + size_t old_size, size_t new_size) +{ + return alloc->realloc(alloc, ptr, old_size, new_size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_alloc_xcalloc(const struct cork_alloc *alloc, size_t count, size_t size) +{ + return alloc->xcalloc(alloc, count, size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_alloc_xmalloc(const struct cork_alloc *alloc, size_t size) +{ + return alloc->xmalloc(alloc, size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_alloc_xrealloc(const struct cork_alloc *alloc, void *ptr, + size_t old_size, size_t new_size) +{ + return alloc->xrealloc(alloc, ptr, old_size, new_size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_alloc_xreallocf(const struct cork_alloc *alloc, void *ptr, + size_t old_size, size_t new_size) +{ + void *result = alloc->xrealloc(alloc, ptr, old_size, new_size); + if (result == NULL) { + alloc->free(alloc, ptr, old_size); + return NULL; + } else { + return result; + } +} + +CORK_ATTR_UNUSED +static void +cork_alloc_free(const struct cork_alloc *alloc, void *ptr, size_t size) +{ + return alloc->free(alloc, ptr, size); +} + +CORK_ATTR_UNUSED +static void +cork_alloc_cfree(const struct cork_alloc *alloc, void *ptr, + size_t count, size_t size) +{ + assert(count < (SIZE_MAX / size)); + return alloc->free(alloc, ptr, count * size); +} + +#define cork_alloc_new(alloc, type) \ + cork_alloc_malloc((alloc), sizeof(type)) +#define cork_alloc_xnew(alloc, type) \ + cork_alloc_xmalloc((alloc), sizeof(type)) +#define cork_alloc_delete(alloc, type, ptr) \ + cork_alloc_free((alloc), (ptr), sizeof(type)) + +/* string-related helper functions */ + +CORK_ATTR_MALLOC +CORK_API const char * +cork_alloc_strdup(const struct cork_alloc *alloc, const char *str); + +CORK_ATTR_MALLOC +CORK_API const char * +cork_alloc_strndup(const struct cork_alloc *alloc, + const char *str, size_t size); + +CORK_ATTR_MALLOC +CORK_API const char * +cork_alloc_xstrdup(const struct cork_alloc *alloc, const char *str); + +CORK_ATTR_MALLOC +CORK_API const char * +cork_alloc_xstrndup(const struct cork_alloc *alloc, + const char *str, size_t size); + +CORK_API void +cork_alloc_strfree(const struct cork_alloc *alloc, const char *str); + + +/*----------------------------------------------------------------------- + * Using the allocator interface + */ + +/* All of the functions that you use to actually allocate memory assume that + * cork_current_allocator() returns the allocator instance that should be used. + * Your easiest approach is to do nothing special; in that case, all of the + * libcork memory allocation functions will transparently use the standard + * malloc/free family of functions. + * + * If you're writing a library, and want to allow your library clients to + * provide a separate custom memory allocator then the one they can already + * override for libcork itself, you should declare a pair of functions for + * getting and setting your library's current allocator (like libcork itself + * does), and (only when compiling the source of your library) define + * `cork_current_allocator` as a macro that aliases the getter function. That + * will cause the libcork memory allocation functions to use whichever allocator + * your library user has provided. + * + * If you're writing an application, and want to provide a single allocator that + * all libcork-using libraries will pick up, just call cork_set_allocator before + * calling any other library functions. Other libraries will use this as a + * default and everything that uses libcork's memory allocation functions will + * use your custom allocator. */ + + +/* libcork's current allocator */ + +extern const struct cork_alloc *cork_allocator; + +/* We take control and will free when the process exits. This is *NOT* + * thread-safe; it's only safe to call before you've called *ANY* other libcork + * function (or any function from any other library that uses libcork). You can + * only call this at most once. */ +CORK_API void +cork_set_allocator(const struct cork_alloc *alloc); + + +/* The current allocator of whichever library is being compiled. */ + +#if !defined(cork_current_allocator) +#define cork_current_allocator() (cork_allocator) +#endif + + +/* using an allocator */ + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_calloc(size_t count, size_t size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_calloc(alloc, count, size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_malloc(size_t size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_malloc(alloc, size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_realloc(void *ptr, size_t old_size, size_t new_size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_realloc(alloc, ptr, old_size, new_size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_xcalloc(size_t count, size_t size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_xcalloc(alloc, count, size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_xmalloc(size_t size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_xmalloc(alloc, size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_xrealloc(void *ptr, size_t old_size, size_t new_size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_xrealloc(alloc, ptr, old_size, new_size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static void * +cork_xreallocf(void *ptr, size_t old_size, size_t new_size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_xreallocf(alloc, ptr, old_size, new_size); +} + +CORK_ATTR_UNUSED +static void +cork_free(void *ptr, size_t size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + cork_alloc_free(alloc, ptr, size); +} + +CORK_ATTR_UNUSED +static void +cork_cfree(void *ptr, size_t count, size_t size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + cork_alloc_cfree(alloc, ptr, count, size); +} + +#define cork_new(type) cork_malloc(sizeof(type)) +#define cork_xnew(type) cork_xmalloc(sizeof(type)) +#define cork_delete(type, ptr) cork_free((ptr), sizeof(type)) + + +/* string-related helper functions */ + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static const char * +cork_strdup(const char *str) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_strdup(alloc, str); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static const char * +cork_strndup(const char *str, size_t size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_strndup(alloc, str, size); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static const char * +cork_xstrdup(const char *str) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_xstrdup(alloc, str); +} + +CORK_ATTR_MALLOC +CORK_ATTR_UNUSED +static const char * +cork_xstrndup(const char *str, size_t size) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_xstrndup(alloc, str, size); +} + +CORK_ATTR_UNUSED +static void +cork_strfree(const char *str) +{ + const struct cork_alloc *alloc = cork_current_allocator(); + return cork_alloc_strfree(alloc, str); +} + + +/*----------------------------------------------------------------------- + * Debugging allocator + */ + +/* An allocator that adds some additional debugging checks: + * + * - We verify that every "free" call (cork_free, cork_cfree, cork_delete, + * cork_realloc) is passed the "correct" size — i.e., the same size that was + * passed in to the correspond "new" call (cork_malloc, cork_calloc, + * cork_realloc, cork_new). + */ + +struct cork_alloc * +cork_debug_alloc_new(const struct cork_alloc *parent); + + +#endif /* LIBCORK_CORE_ALLOCATOR_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/api.h b/shadowsocksr-libev/src/libcork/include/libcork/core/api.h new file mode 100644 index 000000000..0d3c36520 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/api.h @@ -0,0 +1,56 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012-2015, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_API_H +#define LIBCORK_CORE_API_H + +#include +#include + + +/*----------------------------------------------------------------------- + * Calling conventions + */ + +/* If you're using libcork as a shared library, you don't need to do anything + * special; the following will automatically set things up so that libcork's + * public symbols are imported from the library. When we build the shared + * library, we define this ourselves to export the symbols. */ + +#if !defined(CORK_API) +#define CORK_API CORK_IMPORT +#endif + + +/*----------------------------------------------------------------------- + * Library version + */ + +#define CORK_VERSION_MAJOR CORK_CONFIG_VERSION_MAJOR +#define CORK_VERSION_MINOR CORK_CONFIG_VERSION_MINOR +#define CORK_VERSION_PATCH CORK_CONFIG_VERSION_PATCH + +#define CORK_MAKE_VERSION(major, minor, patch) \ + ((major * 1000000) + (minor * 1000) + patch) + +#define CORK_VERSION \ + CORK_MAKE_VERSION(CORK_VERSION_MAJOR, \ + CORK_VERSION_MINOR, \ + CORK_VERSION_PATCH) + +CORK_API const char * +cork_version_string(void) + CORK_ATTR_CONST; + +CORK_API const char * +cork_revision_string(void) + CORK_ATTR_CONST; + + +#endif /* LIBCORK_CORE_API_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/attributes.h b/shadowsocksr-libev/src/libcork/include/libcork/core/attributes.h new file mode 100644 index 000000000..609df563f --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/attributes.h @@ -0,0 +1,172 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_ATTRIBUTES_H +#define LIBCORK_CORE_ATTRIBUTES_H + +#include + + +/* + * Declare a “const” function. + * + * A const function is one whose return value depends only on its + * parameters. This is slightly more strict than a “pure” function; a + * const function is not allowed to read from global variables, whereas + * a pure function is. + * + * int square(int x) CORK_ATTR_CONST; + */ + +#if CORK_CONFIG_HAVE_GCC_ATTRIBUTES +#define CORK_ATTR_CONST __attribute__((const)) +#else +#define CORK_ATTR_CONST +#endif + + +/* + * Declare a “pure” function. + * + * A pure function is one whose return value depends only on its + * parameters, and global variables. + * + * int square(int x) CORK_ATTR_PURE; + */ + +#if CORK_CONFIG_HAVE_GCC_ATTRIBUTES +#define CORK_ATTR_PURE __attribute__((pure)) +#else +#define CORK_ATTR_PURE +#endif + + +/* + * Declare that a function returns a newly allocated pointer. + * + * The compiler can use this information to generate more accurate + * aliasing information, since it can infer that the result of the + * function cannot alias any other existing pointer. + */ + +#if CORK_CONFIG_HAVE_GCC_ATTRIBUTES +#define CORK_ATTR_MALLOC __attribute__((malloc)) +#else +#define CORK_ATTR_MALLOC +#endif + + +/* + * Declare that a function shouldn't be inlined. + */ + +#if CORK_CONFIG_HAVE_GCC_ATTRIBUTES +#define CORK_ATTR_NOINLINE __attribute__((noinline)) +#else +#define CORK_ATTR_NOINLINE +#endif + + +/* + * Declare an entity that isn't used. + * + * This lets you keep -Wall activated in several cases where you're + * obligated to define something that you don't intend to use. + */ + +#if CORK_CONFIG_HAVE_GCC_ATTRIBUTES +#define CORK_ATTR_UNUSED __attribute__((unused)) +#else +#define CORK_ATTR_UNUSED +#endif + + +/* + * Declare a function that takes in printf-like parameters. + * + * When the compiler supports this attribute, it will check the format + * string, and the following arguments, to make sure that they match. + * format_index and args_index are 1-based. + */ + +#if CORK_CONFIG_HAVE_GCC_ATTRIBUTES && !(defined(__CYGWIN__)||defined(__MINGW32__)) +#define CORK_ATTR_PRINTF(format_index, args_index) \ + __attribute__((format(printf, format_index, args_index))) +#else +#define CORK_ATTR_PRINTF(format_index, args_index) +#endif + + +/* + * Declare a var-arg function whose last parameter must be a NULL + * sentinel value. + * + * When the compiler supports this attribute, it will check the actual + * parameters whenever this function is called, and ensure that the last + * parameter is a @c NULL. + */ + +#if CORK_CONFIG_HAVE_GCC_ATTRIBUTES +#define CORK_ATTR_SENTINEL __attribute__((sentinel)) +#else +#define CORK_ATTR_SENTINEL +#endif + + +/* + * Declare that a boolean expression is likely to be true or false. + */ + +#if CORK_CONFIG_HAVE_GCC_ATTRIBUTES +#define CORK_LIKELY(expr) __builtin_expect((expr), 1) +#define CORK_UNLIKELY(expr) __builtin_expect((expr), 0) +#else +#define CORK_LIKELY(expr) (expr) +#define CORK_UNLIKELY(expr) (expr) +#endif + +/* + * Declare that a function is part of the current library's public API, or that + * it's internal to the current library. + */ + +#if CORK_CONFIG_HAVE_GCC_ATTRIBUTES && !(defined(__CYGWIN__)||defined(__MINGW32__)) +#define CORK_EXPORT __attribute__((visibility("default"))) +#define CORK_IMPORT __attribute__((visibility("default"))) +#define CORK_LOCAL __attribute__((visibility("hidden"))) +#else +#define CORK_EXPORT +#define CORK_IMPORT +#define CORK_LOCAL +#endif + + +/* + * Declare a static function that should automatically be called at program + * startup. + */ + +/* TODO: When we implement a full Windows port, [1] describes how best to + * implement an initialization function under Visual Studio. + * + * [1] http://stackoverflow.com/questions/1113409/attribute-constructor-equivalent-in-vc + */ + +#if CORK_CONFIG_HAVE_GCC_ATTRIBUTES +#define CORK_INITIALIZER(name) \ +__attribute__((constructor)) \ +static void \ +name(void) +#else +#error "Don't know how to implement initialization functions of this platform" +#endif + + +#endif /* LIBCORK_CORE_ATTRIBUTES_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/byte-order.h b/shadowsocksr-libev/src/libcork/include/libcork/core/byte-order.h new file mode 100644 index 000000000..6761faaf5 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/byte-order.h @@ -0,0 +1,186 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_BYTE_ORDER_H +#define LIBCORK_CORE_BYTE_ORDER_H + + +#include +#include + + +/* Constants to represent big endianness and little endianness */ +#define CORK_BIG_ENDIAN 4321 +#define CORK_LITTLE_ENDIAN 1234 + +/* Whether the current host is big- or little-endian. HOST gives us the + * current system's endianness; OTHER gives the opposite endianness. + * The _NAME macros can be used in debugging messages and other + * human-readable output. + * + * Note that we actually detect the endianness in the various header + * files in the libcork/config directory, since we want to keep + * everything detection-related separated out from what we define based + * on that detection. */ + +#if CORK_CONFIG_IS_BIG_ENDIAN +#define CORK_HOST_ENDIANNESS CORK_BIG_ENDIAN +#define CORK_OTHER_ENDIANNESS CORK_LITTLE_ENDIAN +#define CORK_HOST_ENDIANNESS_NAME "big" +#define CORK_OTHER_ENDIANNESS_NAME "little" + +#elif CORK_CONFIG_IS_LITTLE_ENDIAN +#define CORK_HOST_ENDIANNESS CORK_LITTLE_ENDIAN +#define CORK_OTHER_ENDIANNESS CORK_BIG_ENDIAN +#define CORK_HOST_ENDIANNESS_NAME "little" +#define CORK_OTHER_ENDIANNESS_NAME "big" + +#else +#error "Unknown endianness" +#endif + + +/* Returns the byte-swapped version an integer, regardless of the + * underlying endianness. + * + * These macros only require an rvalue as their parameter (which can + * therefore be any arbitrary expression), and they don't modify the + * original contents if it happens to be a variable. */ + +#define CORK_SWAP_UINT16(__u16) \ + (((((uint16_t) __u16) & 0xff00u) >> 8) | \ + ((((uint16_t) __u16) & 0x00ffu) << 8)) + +#define CORK_SWAP_UINT32(__u32) \ + (((((uint32_t) __u32) & 0xff000000u) >> 24) | \ + ((((uint32_t) __u32) & 0x00ff0000u) >> 8) | \ + ((((uint32_t) __u32) & 0x0000ff00u) << 8) | \ + ((((uint32_t) __u32) & 0x000000ffu) << 24)) + +#define CORK_SWAP_UINT64(__u64) \ + (((((uint64_t) __u64) & UINT64_C(0xff00000000000000)) >> 56) | \ + ((((uint64_t) __u64) & UINT64_C(0x00ff000000000000)) >> 40) | \ + ((((uint64_t) __u64) & UINT64_C(0x0000ff0000000000)) >> 24) | \ + ((((uint64_t) __u64) & UINT64_C(0x000000ff00000000)) >> 8) | \ + ((((uint64_t) __u64) & UINT64_C(0x00000000ff000000)) << 8) | \ + ((((uint64_t) __u64) & UINT64_C(0x0000000000ff0000)) << 24) | \ + ((((uint64_t) __u64) & UINT64_C(0x000000000000ff00)) << 40) | \ + ((((uint64_t) __u64) & UINT64_C(0x00000000000000ff)) << 56)) + +/* Bytes-swaps an integer variable in place. + * + * These macros require an lvalue as their parameter; the contents of + * this variable will be modified by the macro. */ + +#define CORK_SWAP_IN_PLACE_UINT16(__u16) \ + do { \ + (__u16) = CORK_SWAP_UINT16(__u16); \ + } while (0) + +#define CORK_SWAP_IN_PLACE_UINT32(__u32) \ + do { \ + (__u32) = CORK_SWAP_UINT32(__u32); \ + } while (0) + +#define CORK_SWAP_IN_PLACE_UINT64(__u64) \ + do { \ + (__u64) = CORK_SWAP_UINT64(__u64); \ + } while (0) + + +/* + * A slew of swapping macros whose operation depends on the endianness + * of the current system: + * + * uint16_t CORK_UINT16_BIG_TO_HOST(u16) + * uint32_t CORK_UINT32_BIG_TO_HOST(u32) + * uint64_t CORK_UINT64_BIG_TO_HOST(u64) + * uint16_t CORK_UINT16_LITTLE_TO_HOST(u16) + * uint32_t CORK_UINT32_LITTLE_TO_HOST(u32) + * uint64_t CORK_UINT64_LITTLE_TO_HOST(u64) + * void CORK_UINT16_BIG_TO_HOST_IN_PLACE(&u16) + * void CORK_UINT32_BIG_TO_HOST_IN_PLACE(&u32) + * void CORK_UINT64_BIG_TO_HOST_IN_PLACE(&u64) + * void CORK_UINT16_LITTLE_TO_HOST_IN_PLACE(&u16) + * void CORK_UINT32_LITTLE_TO_HOST_IN_PLACE(&u32) + * void CORK_UINT64_LITTLE_TO_HOST_IN_PLACE(&u64) + * + * uint16_t CORK_UINT16_HOST_TO_BIG(u16) + * uint32_t CORK_UINT32_HOST_TO_BIG(u32) + * uint64_t CORK_UINT64_HOST_TO_BIG(u64) + * uint16_t CORK_UINT16_HOST_TO_LITTLE(u16) + * uint32_t CORK_UINT32_HOST_TO_LITTLE(u32) + * uint64_t CORK_UINT64_HOST_TO_LITTLE(u64) + * void CORK_UINT16_HOST_TO_BIG_IN_PLACE(&u16) + * void CORK_UINT32_HOST_TO_BIG_IN_PLACE(&u32) + * void CORK_UINT64_HOST_TO_BIG_IN_PLACE(&u64) + * void CORK_UINT16_HOST_TO_LITTLE_IN_PLACE(&u16) + * void CORK_UINT32_HOST_TO_LITTLE_IN_PLACE(&u32) + * void CORK_UINT64_HOST_TO_LITTLE_IN_PLACE(&u64) + */ + +#if CORK_HOST_ENDIANNESS == CORK_BIG_ENDIAN + +#define CORK_UINT16_BIG_TO_HOST(__u16) (__u16) /* nothing to do */ +#define CORK_UINT16_LITTLE_TO_HOST(__u16) CORK_SWAP_UINT16(__u16) + +#define CORK_UINT32_BIG_TO_HOST(__u32) (__u32) /* nothing to do */ +#define CORK_UINT32_LITTLE_TO_HOST(__u32) CORK_SWAP_UINT32(__u32) + +#define CORK_UINT64_BIG_TO_HOST(__u64) (__u64) /* nothing to do */ +#define CORK_UINT64_LITTLE_TO_HOST(__u64) CORK_SWAP_UINT64(__u64) + +#define CORK_UINT16_BIG_TO_HOST_IN_PLACE(__u16) /* nothing to do */ +#define CORK_UINT16_LITTLE_TO_HOST_IN_PLACE(__u16) CORK_SWAP_IN_PLACE_UINT16(__u16) + +#define CORK_UINT32_BIG_TO_HOST_IN_PLACE(__u32) /* nothing to do */ +#define CORK_UINT32_LITTLE_TO_HOST_IN_PLACE(__u32) CORK_SWAP_IN_PLACE_UINT32(__u32) + +#define CORK_UINT64_BIG_TO_HOST_IN_PLACE(__u64) /* nothing to do */ +#define CORK_UINT64_LITTLE_TO_HOST_IN_PLACE(__u64) CORK_SWAP_IN_PLACE_UINT64(__u64) + +#elif CORK_HOST_ENDIANNESS == CORK_LITTLE_ENDIAN + +#define CORK_UINT16_BIG_TO_HOST(__u16) CORK_SWAP_UINT16(__u16) +#define CORK_UINT16_LITTLE_TO_HOST(__u16) (__u16) /* nothing to do */ + +#define CORK_UINT32_BIG_TO_HOST(__u32) CORK_SWAP_UINT32(__u32) +#define CORK_UINT32_LITTLE_TO_HOST(__u32) (__u32) /* nothing to do */ + +#define CORK_UINT64_BIG_TO_HOST(__u64) CORK_SWAP_UINT64(__u64) +#define CORK_UINT64_LITTLE_TO_HOST(__u64) (__u64) /* nothing to do */ + +#define CORK_UINT16_BIG_TO_HOST_IN_PLACE(__u16) CORK_SWAP_IN_PLACE_UINT16(__u16) +#define CORK_UINT16_LITTLE_TO_HOST_IN_PLACE(__u16) /* nothing to do */ + +#define CORK_UINT32_BIG_TO_HOST_IN_PLACE(__u32) CORK_SWAP_IN_PLACE_UINT32(__u32) +#define CORK_UINT32_LITTLE_TO_HOST_IN_PLACE(__u32) /* nothing to do */ + +#define CORK_UINT64_BIG_TO_HOST_IN_PLACE(__u64) CORK_SWAP_IN_PLACE_UINT64(__u64) +#define CORK_UINT64_LITTLE_TO_HOST_IN_PLACE(__u64) /* nothing to do */ + +#endif + + +#define CORK_UINT16_HOST_TO_BIG(__u16) CORK_UINT16_BIG_TO_HOST(__u16) +#define CORK_UINT32_HOST_TO_BIG(__u32) CORK_UINT32_BIG_TO_HOST(__u32) +#define CORK_UINT64_HOST_TO_BIG(__u64) CORK_UINT64_BIG_TO_HOST(__u64) +#define CORK_UINT16_HOST_TO_LITTLE(__u16) CORK_UINT16_LITTLE_TO_HOST(__u16) +#define CORK_UINT32_HOST_TO_LITTLE(__u32) CORK_UINT32_LITTLE_TO_HOST(__u32) +#define CORK_UINT64_HOST_TO_LITTLE(__u64) CORK_UINT64_LITTLE_TO_HOST(__u64) +#define CORK_UINT16_HOST_TO_BIG_IN_PLACE(__u16) CORK_UINT16_BIG_TO_HOST_IN_PLACE(__u16) +#define CORK_UINT32_HOST_TO_BIG_IN_PLACE(__u32) CORK_UINT32_BIG_TO_HOST_IN_PLACE(__u32) +#define CORK_UINT64_HOST_TO_BIG_IN_PLACE(__u64) CORK_UINT64_BIG_TO_HOST_IN_PLACE(__u64) +#define CORK_UINT16_HOST_TO_LITTLE_IN_PLACE(__u16) CORK_UINT16_LITTLE_TO_HOST_IN_PLACE(__u16) +#define CORK_UINT32_HOST_TO_LITTLE_IN_PLACE(__u32) CORK_UINT32_LITTLE_TO_HOST_IN_PLACE(__u32) +#define CORK_UINT64_HOST_TO_LITTLE_IN_PLACE(__u64) CORK_UINT64_LITTLE_TO_HOST_IN_PLACE(__u64) + + +#endif /* LIBCORK_CORE_BYTE_ORDER_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/callbacks.h b/shadowsocksr-libev/src/libcork/include/libcork/core/callbacks.h new file mode 100644 index 000000000..a63365ffb --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/callbacks.h @@ -0,0 +1,46 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_CALLBACKS_H +#define LIBCORK_CORE_CALLBACKS_H + + +#include + + +typedef int +(*cork_copy_f)(void *user_data, void *dest, const void *src); + +typedef void +(*cork_done_f)(void *user_data, void *value); + +typedef void +(*cork_free_f)(void *value); + +typedef cork_hash +(*cork_hash_f)(void *user_data, const void *value); + +typedef bool +(*cork_equals_f)(void *user_data, const void *value1, const void *value2); + +typedef void +(*cork_init_f)(void *user_data, void *value); + +#define cork_free_user_data(parent) \ + ((parent)->free_user_data == NULL? (void) 0: \ + (parent)->free_user_data((parent)->user_data)) + +typedef void * +(*cork_new_f)(void *user_data); + +typedef int +(*cork_run_f)(void *user_data); + + +#endif /* LIBCORK_CORE_CALLBACKS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/error.h b/shadowsocksr-libev/src/libcork/include/libcork/core/error.h new file mode 100644 index 000000000..67b731e97 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/error.h @@ -0,0 +1,139 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_ERROR_H +#define LIBCORK_CORE_ERROR_H + +#include +#include +#include +#include + +#include +#include +#include + + +/* Should be a hash of a string representing the error code. */ +typedef uint32_t cork_error; + +/* An error code that represents “no error”. */ +#define CORK_ERROR_NONE ((cork_error) 0) + +CORK_API bool +cork_error_occurred(void); + +CORK_API cork_error +cork_error_code(void); + +CORK_API const char * +cork_error_message(void); + + +CORK_API void +cork_error_clear(void); + +CORK_API void +cork_error_set_printf(cork_error code, const char *format, ...) + CORK_ATTR_PRINTF(2,3); + +CORK_API void +cork_error_set_string(cork_error code, const char *str); + +CORK_API void +cork_error_set_vprintf(cork_error code, const char *format, va_list args) + CORK_ATTR_PRINTF(2,0); + +CORK_API void +cork_error_prefix_printf(const char *format, ...) + CORK_ATTR_PRINTF(1,2); + +CORK_API void +cork_error_prefix_string(const char *str); + +CORK_API void +cork_error_prefix_vprintf(const char *format, va_list arg) + CORK_ATTR_PRINTF(1,0); + + +/* deprecated */ +CORK_API void +cork_error_set(uint32_t error_class, unsigned int error_code, + const char *format, ...) + CORK_ATTR_PRINTF(3,4); + +/* deprecated */ +CORK_API void +cork_error_prefix(const char *format, ...) + CORK_ATTR_PRINTF(1,2); + + +/*----------------------------------------------------------------------- + * Built-in errors + */ + +#define CORK_PARSE_ERROR 0x95dfd3c8 +#define CORK_REDEFINED 0x171629cb +#define CORK_UNDEFINED 0xedc3d7d9 +#define CORK_UNKNOWN_ERROR 0x8cb0880d + +#define cork_parse_error(...) \ + cork_error_set_printf(CORK_PARSE_ERROR, __VA_ARGS__) +#define cork_redefined(...) \ + cork_error_set_printf(CORK_REDEFINED, __VA_ARGS__) +#define cork_undefined(...) \ + cork_error_set_printf(CORK_UNDEFINED, __VA_ARGS__) + +CORK_API void +cork_system_error_set(void); + +CORK_API void +cork_system_error_set_explicit(int err); + +CORK_API void +cork_unknown_error_set_(const char *location); + +#define cork_unknown_error() \ + cork_unknown_error_set_(__func__) + + +/*----------------------------------------------------------------------- + * Abort on failure + */ + +#define cork_abort_(func, file, line, fmt, ...) \ + do { \ + fprintf(stderr, fmt "\n in %s (%s:%u)\n", \ + __VA_ARGS__, (func), (file), (unsigned int) (line)); \ + abort(); \ + } while (0) + +#define cork_abort(fmt, ...) \ + cork_abort_(__func__, __FILE__, __LINE__, fmt, __VA_ARGS__) + +CORK_ATTR_UNUSED +static void * +cork_abort_if_null_(void *ptr, const char *msg, const char *func, + const char *file, unsigned int line) +{ + if (CORK_UNLIKELY(ptr == NULL)) { + cork_abort_(func, file, line, "%s", msg); + } else { + return ptr; + } +} + +#define cork_abort_if_null(ptr, msg) \ + (cork_abort_if_null_(ptr, msg, __func__, __FILE__, __LINE__)) + +#define cork_unreachable() \ + cork_abort("%s", "Code should not be reachable") + + +#endif /* LIBCORK_CORE_ERROR_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/gc.h b/shadowsocksr-libev/src/libcork/include/libcork/core/gc.h new file mode 100644 index 000000000..bc251ead1 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/gc.h @@ -0,0 +1,67 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_GC_REFCOUNT_H +#define LIBCORK_GC_REFCOUNT_H + + +#include +#include + + +struct cork_gc; + +/* A callback for recursing through the children of a garbage-collected + * object. */ +typedef void +(*cork_gc_recurser)(struct cork_gc *gc, void *obj, void *ud); + +typedef void +(*cork_gc_free_func)(void *obj); + +typedef void +(*cork_gc_recurse_func)(struct cork_gc *gc, void *self, + cork_gc_recurser recurser, void *ud); + +/* An interface that each garbage-collected object must implement. */ +struct cork_gc_obj_iface { + /* Perform additional cleanup; does *NOT* need to deallocate the + * object itself, or release any child references */ + cork_gc_free_func free; + cork_gc_recurse_func recurse; +}; + + +CORK_API void +cork_gc_init(void); + +CORK_API void +cork_gc_done(void); + + +CORK_API void * +cork_gc_alloc(size_t instance_size, struct cork_gc_obj_iface *iface); + +#define cork_gc_new_iface(obj_type, iface) \ + ((obj_type *) \ + (cork_gc_alloc(sizeof(obj_type), (iface)))) + +#define cork_gc_new(struct_name) \ + (cork_gc_new_iface(struct struct_name, &struct_name##__gc)) + + +CORK_API void * +cork_gc_incref(void *obj); + +CORK_API void +cork_gc_decref(void *obj); + + +#endif /* LIBCORK_GC_REFCOUNT_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/hash.h b/shadowsocksr-libev/src/libcork/include/libcork/core/hash.h new file mode 100644 index 000000000..824eb8285 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/hash.h @@ -0,0 +1,356 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_HASH_H +#define LIBCORK_CORE_HASH_H + + +#include +#include +#include +#include +#include + + +#ifndef CORK_HASH_ATTRIBUTES +#define CORK_HASH_ATTRIBUTES CORK_ATTR_UNUSED static inline +#endif + + +typedef uint32_t cork_hash; + +typedef struct { + cork_u128 u128; +} cork_big_hash; + +#define cork_big_hash_equal(h1, h2) (cork_u128_eq((h1).u128, (h2).u128)) + +#define CORK_BIG_HASH_INIT() {{{{0}}}} + +/* We currently use MurmurHash3 [1], which is public domain, as our hash + * implementation. + * + * [1] http://code.google.com/p/smhasher/ + */ + +#define CORK_ROTL32(a,b) (((a) << ((b) & 0x1f)) | ((a) >> (32 - ((b) & 0x1f)))) +#define CORK_ROTL64(a,b) (((a) << ((b) & 0x3f)) | ((a) >> (64 - ((b) & 0x3f)))) + +CORK_ATTR_UNUSED +static inline +uint32_t cork_fmix32(uint32_t h) +{ + h ^= h >> 16; + h *= 0x85ebca6b; + h ^= h >> 13; + h *= 0xc2b2ae35; + h ^= h >> 16; + return h; +} + +CORK_ATTR_UNUSED +static inline +uint64_t cork_fmix64(uint64_t k) +{ + k ^= k >> 33; + k *= UINT64_C(0xff51afd7ed558ccd); + k ^= k >> 33; + k *= UINT64_C(0xc4ceb9fe1a85ec53); + k ^= k >> 33; + return k; +} + +CORK_HASH_ATTRIBUTES +cork_hash +cork_stable_hash_buffer(cork_hash seed, const void *src, size_t len) +{ + typedef uint32_t __attribute__((__may_alias__)) cork_aliased_uint32_t; + + /* This is exactly the same as cork_murmur_hash_x86_32, but with a byte swap + * to make sure that we always process the uint32s little-endian. */ + const unsigned int nblocks = len / 4; + const cork_aliased_uint32_t *blocks = (const cork_aliased_uint32_t *) src; + const cork_aliased_uint32_t *end = blocks + nblocks; + const cork_aliased_uint32_t *curr; + const uint8_t *tail = (const uint8_t *) end; + + uint32_t h1 = seed; + uint32_t c1 = 0xcc9e2d51; + uint32_t c2 = 0x1b873593; + uint32_t k1 = 0; + + /* body */ + for (curr = blocks; curr != end; curr++) { + uint32_t k1 = CORK_UINT32_HOST_TO_LITTLE(*curr); + + k1 *= c1; + k1 = CORK_ROTL32(k1,15); + k1 *= c2; + + h1 ^= k1; + h1 = CORK_ROTL32(h1,13); + h1 = h1*5+0xe6546b64; + } + + /* tail */ + switch (len & 3) { + case 3: k1 ^= tail[2] << 16; + case 2: k1 ^= tail[1] << 8; + case 1: k1 ^= tail[0]; + k1 *= c1; k1 = CORK_ROTL32(k1,15); k1 *= c2; h1 ^= k1; + }; + + /* finalization */ + h1 ^= len; + h1 = cork_fmix32(h1); + return h1; +} + +#define cork_murmur_hash_x86_32(seed, src, len, dest) \ +do { \ + typedef uint32_t __attribute__((__may_alias__)) cork_aliased_uint32_t; \ + \ + const unsigned int nblocks = len / 4; \ + const cork_aliased_uint32_t *blocks = (const cork_aliased_uint32_t *) src; \ + const cork_aliased_uint32_t *end = blocks + nblocks; \ + const cork_aliased_uint32_t *curr; \ + const uint8_t *tail = (const uint8_t *) end; \ + \ + uint32_t h1 = seed; \ + uint32_t c1 = 0xcc9e2d51; \ + uint32_t c2 = 0x1b873593; \ + uint32_t k1 = 0; \ + \ + /* body */ \ + for (curr = blocks; curr != end; curr++) { \ + uint32_t k1 = *curr; \ + \ + k1 *= c1; \ + k1 = CORK_ROTL32(k1,15); \ + k1 *= c2; \ + \ + h1 ^= k1; \ + h1 = CORK_ROTL32(h1,13); \ + h1 = h1*5+0xe6546b64; \ + } \ + \ + /* tail */ \ + switch (len & 3) { \ + case 3: k1 ^= tail[2] << 16; \ + case 2: k1 ^= tail[1] << 8; \ + case 1: k1 ^= tail[0]; \ + k1 *= c1; k1 = CORK_ROTL32(k1,15); k1 *= c2; h1 ^= k1; \ + }; \ + \ + /* finalization */ \ + h1 ^= len; \ + h1 = cork_fmix32(h1); \ + *(dest) = h1; \ +} while (0) + +#define cork_murmur_hash_x86_128(seed, src, len, dest) \ +do { \ + typedef uint32_t __attribute__((__may_alias__)) cork_aliased_uint32_t; \ + \ + const unsigned int nblocks = len / 16; \ + const cork_aliased_uint32_t *blocks = (const cork_aliased_uint32_t *) src; \ + const cork_aliased_uint32_t *end = blocks + (nblocks * 4); \ + const cork_aliased_uint32_t *curr; \ + const uint8_t *tail = (const uint8_t *) end; \ + \ + uint32_t h1 = cork_u128_be32(seed.u128, 0); \ + uint32_t h2 = cork_u128_be32(seed.u128, 1); \ + uint32_t h3 = cork_u128_be32(seed.u128, 2); \ + uint32_t h4 = cork_u128_be32(seed.u128, 3); \ + \ + uint32_t c1 = 0x239b961b; \ + uint32_t c2 = 0xab0e9789; \ + uint32_t c3 = 0x38b34ae5; \ + uint32_t c4 = 0xa1e38b93; \ + \ + uint32_t k1 = 0; \ + uint32_t k2 = 0; \ + uint32_t k3 = 0; \ + uint32_t k4 = 0; \ + \ + /* body */ \ + for (curr = blocks; curr != end; curr += 4) { \ + uint32_t k1 = curr[0]; \ + uint32_t k2 = curr[1]; \ + uint32_t k3 = curr[2]; \ + uint32_t k4 = curr[3]; \ + \ + k1 *= c1; k1 = CORK_ROTL32(k1,15); k1 *= c2; h1 ^= k1; \ + h1 = CORK_ROTL32(h1,19); h1 += h2; h1 = h1*5+0x561ccd1b; \ + \ + k2 *= c2; k2 = CORK_ROTL32(k2,16); k2 *= c3; h2 ^= k2; \ + h2 = CORK_ROTL32(h2,17); h2 += h3; h2 = h2*5+0x0bcaa747; \ + \ + k3 *= c3; k3 = CORK_ROTL32(k3,17); k3 *= c4; h3 ^= k3; \ + h3 = CORK_ROTL32(h3,15); h3 += h4; h3 = h3*5+0x96cd1c35; \ + \ + k4 *= c4; k4 = CORK_ROTL32(k4,18); k4 *= c1; h4 ^= k4; \ + h4 = CORK_ROTL32(h4,13); h4 += h1; h4 = h4*5+0x32ac3b17; \ + } \ + \ + /* tail */ \ + switch (len & 15) { \ + case 15: k4 ^= tail[14] << 16; \ + case 14: k4 ^= tail[13] << 8; \ + case 13: k4 ^= tail[12] << 0; \ + k4 *= c4; k4 = CORK_ROTL32(k4,18); k4 *= c1; h4 ^= k4; \ + \ + case 12: k3 ^= tail[11] << 24; \ + case 11: k3 ^= tail[10] << 16; \ + case 10: k3 ^= tail[ 9] << 8; \ + case 9: k3 ^= tail[ 8] << 0; \ + k3 *= c3; k3 = CORK_ROTL32(k3,17); k3 *= c4; h3 ^= k3; \ + \ + case 8: k2 ^= tail[ 7] << 24; \ + case 7: k2 ^= tail[ 6] << 16; \ + case 6: k2 ^= tail[ 5] << 8; \ + case 5: k2 ^= tail[ 4] << 0; \ + k2 *= c2; k2 = CORK_ROTL32(k2,16); k2 *= c3; h2 ^= k2; \ + \ + case 4: k1 ^= tail[ 3] << 24; \ + case 3: k1 ^= tail[ 2] << 16; \ + case 2: k1 ^= tail[ 1] << 8; \ + case 1: k1 ^= tail[ 0] << 0; \ + k1 *= c1; k1 = CORK_ROTL32(k1,15); k1 *= c2; h1 ^= k1; \ + }; \ + \ + /* finalization */ \ + \ + h1 ^= len; h2 ^= len; h3 ^= len; h4 ^= len; \ + \ + h1 += h2; h1 += h3; h1 += h4; \ + h2 += h1; h3 += h1; h4 += h1; \ + \ + h1 = cork_fmix32(h1); \ + h2 = cork_fmix32(h2); \ + h3 = cork_fmix32(h3); \ + h4 = cork_fmix32(h4); \ + \ + h1 += h2; h1 += h3; h1 += h4; \ + h2 += h1; h3 += h1; h4 += h1; \ + \ + (dest)->u128 = cork_u128_from_32(h1, h2, h3, h4); \ +} while (0) + +#define cork_murmur_hash_x64_128(seed, src, len, dest) \ +do { \ + typedef uint64_t __attribute__((__may_alias__)) cork_aliased_uint64_t; \ + \ + const unsigned int nblocks = len / 16; \ + const cork_aliased_uint64_t *blocks = (const cork_aliased_uint64_t *) src; \ + const cork_aliased_uint64_t *end = blocks + (nblocks * 2); \ + const cork_aliased_uint64_t *curr; \ + const uint8_t *tail = (const uint8_t *) end; \ + \ + uint64_t h1 = cork_u128_be64(seed.u128, 0); \ + uint64_t h2 = cork_u128_be64(seed.u128, 1); \ + \ + uint64_t c1 = UINT64_C(0x87c37b91114253d5); \ + uint64_t c2 = UINT64_C(0x4cf5ad432745937f); \ + \ + uint64_t k1 = 0; \ + uint64_t k2 = 0; \ + \ + /* body */ \ + for (curr = blocks; curr != end; curr += 2) { \ + uint64_t k1 = curr[0]; \ + uint64_t k2 = curr[1]; \ + \ + k1 *= c1; k1 = CORK_ROTL64(k1,31); k1 *= c2; h1 ^= k1; \ + h1 = CORK_ROTL64(h1,27); h1 += h2; h1 = h1*5+0x52dce729; \ + \ + k2 *= c2; k2 = CORK_ROTL64(k2,33); k2 *= c1; h2 ^= k2; \ + h2 = CORK_ROTL64(h2,31); h2 += h1; h2 = h2*5+0x38495ab5; \ + } \ + \ + /* tail */ \ + switch (len & 15) { \ + case 15: k2 ^= (uint64_t) (tail[14]) << 48; \ + case 14: k2 ^= (uint64_t) (tail[13]) << 40; \ + case 13: k2 ^= (uint64_t) (tail[12]) << 32; \ + case 12: k2 ^= (uint64_t) (tail[11]) << 24; \ + case 11: k2 ^= (uint64_t) (tail[10]) << 16; \ + case 10: k2 ^= (uint64_t) (tail[ 9]) << 8; \ + case 9: k2 ^= (uint64_t) (tail[ 8]) << 0; \ + k2 *= c2; k2 = CORK_ROTL64(k2,33); k2 *= c1; h2 ^= k2; \ + \ + case 8: k1 ^= (uint64_t) (tail[ 7]) << 56; \ + case 7: k1 ^= (uint64_t) (tail[ 6]) << 48; \ + case 6: k1 ^= (uint64_t) (tail[ 5]) << 40; \ + case 5: k1 ^= (uint64_t) (tail[ 4]) << 32; \ + case 4: k1 ^= (uint64_t) (tail[ 3]) << 24; \ + case 3: k1 ^= (uint64_t) (tail[ 2]) << 16; \ + case 2: k1 ^= (uint64_t) (tail[ 1]) << 8; \ + case 1: k1 ^= (uint64_t) (tail[ 0]) << 0; \ + k1 *= c1; k1 = CORK_ROTL64(k1,31); k1 *= c2; h1 ^= k1; \ + }; \ + \ + /* finalization */ \ + \ + h1 ^= len; h2 ^= len; \ + \ + h1 += h2; \ + h2 += h1; \ + \ + h1 = cork_fmix64(h1); \ + h2 = cork_fmix64(h2); \ + \ + h1 += h2; \ + h2 += h1; \ + \ + (dest)->u128 = cork_u128_from_64(h1, h2); \ +} while (0) + + +#include +CORK_HASH_ATTRIBUTES +cork_hash +cork_hash_buffer(cork_hash seed, const void *src, size_t len) +{ +#if CORK_SIZEOF_POINTER == 8 + cork_big_hash big_seed = {cork_u128_from_32(seed, seed, seed, seed)}; + cork_big_hash hash; + cork_murmur_hash_x64_128(big_seed, src, len, &hash); + return cork_u128_be32(hash.u128, 0); +#else + cork_hash hash = 0; + cork_murmur_hash_x86_32(seed, src, len, &hash); + return hash; +#endif +} + + +CORK_HASH_ATTRIBUTES +cork_big_hash +cork_big_hash_buffer(cork_big_hash seed, const void *src, size_t len) +{ + cork_big_hash result; +#if CORK_SIZEOF_POINTER == 8 + cork_murmur_hash_x64_128(seed, src, len, &result); +#else + cork_murmur_hash_x86_128(seed, src, len, &result); +#endif + return result; +} + + +#define cork_hash_variable(seed, val) \ + (cork_hash_buffer((seed), &(val), sizeof((val)))) +#define cork_stable_hash_variable(seed, val) \ + (cork_stable_hash_buffer((seed), &(val), sizeof((val)))) +#define cork_big_hash_variable(seed, val) \ + (cork_big_hash_buffer((seed), &(val), sizeof((val)))) + + +#endif /* LIBCORK_CORE_HASH_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/id.h b/shadowsocksr-libev/src/libcork/include/libcork/core/id.h new file mode 100644 index 000000000..3e94179ae --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/id.h @@ -0,0 +1,35 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_ID_H +#define LIBCORK_CORE_ID_H + +#include + + +struct cork_uid { + const char *name; +}; + +typedef const struct cork_uid *cork_uid; + +#define CORK_UID_NONE ((cork_uid) NULL) + +#define cork_uid_define_named(c_name, name) \ + static const struct cork_uid c_name##__id = { name }; \ + static cork_uid c_name = &c_name##__id; +#define cork_uid_define(c_name) \ + cork_uid_define_named(c_name, #c_name) + +#define cork_uid_equal(id1, id2) ((id1) == (id2)) +#define cork_uid_hash(id) ((cork_hash) (uintptr_t) (id)) +#define cork_uid_name(id) ((id)->name) + + +#endif /* LIBCORK_CORE_ID_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/mempool.h b/shadowsocksr-libev/src/libcork/include/libcork/core/mempool.h new file mode 100644 index 000000000..43a73c6c1 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/mempool.h @@ -0,0 +1,71 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012-2015, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORK_MEMPOOL_H +#define LIBCORK_CORK_MEMPOOL_H + + +#include +#include +#include +#include +#include + + +#define CORK_MEMPOOL_DEFAULT_BLOCK_SIZE 4096 + + +struct cork_mempool; + + +CORK_API struct cork_mempool * +cork_mempool_new_size_ex(size_t element_size, size_t block_size); + +#define cork_mempool_new_size(element_size) \ + (cork_mempool_new_size_ex \ + ((element_size), CORK_MEMPOOL_DEFAULT_BLOCK_SIZE)) + +#define cork_mempool_new_ex(type, block_size) \ + (cork_mempool_new_size_ex(sizeof(type), (block_size))) + +#define cork_mempool_new(type) \ + (cork_mempool_new_size(sizeof(type))) + +CORK_API void +cork_mempool_free(struct cork_mempool *mp); + + +CORK_API void +cork_mempool_set_user_data(struct cork_mempool *mp, + void *user_data, cork_free_f free_user_data); + +CORK_API void +cork_mempool_set_init_object(struct cork_mempool *mp, cork_init_f init_object); + +CORK_API void +cork_mempool_set_done_object(struct cork_mempool *mp, cork_done_f done_object); + +/* Deprecated; you should now use separate calls to cork_mempool_set_user_data, + * cork_mempool_set_init_object, and cork_mempool_set_done_object. */ +CORK_API void +cork_mempool_set_callbacks(struct cork_mempool *mp, + void *user_data, cork_free_f free_user_data, + cork_init_f init_object, + cork_done_f done_object); + + +CORK_API void * +cork_mempool_new_object(struct cork_mempool *mp); + + +CORK_API void +cork_mempool_free_object(struct cork_mempool *mp, void *ptr); + + +#endif /* LIBCORK_CORK_MEMPOOL_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/net-addresses.h b/shadowsocksr-libev/src/libcork/include/libcork/core/net-addresses.h new file mode 100644 index 000000000..5de73b240 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/net-addresses.h @@ -0,0 +1,147 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_NET_ADDRESSES_H +#define LIBCORK_CORE_NET_ADDRESSES_H + + +#include + +#include +#include +#include + + +/*----------------------------------------------------------------------- + * IP addresses + */ + +struct cork_ipv4 { + union { + uint8_t u8[4]; + uint16_t u16[2]; + uint32_t u32; + } _; +}; + +struct cork_ipv6 { + union { + uint8_t u8[16]; + uint16_t u16[8]; + uint32_t u32[4]; + uint64_t u64[2]; + } _; +}; + +struct cork_ip { + /* Which version of IP address this is. */ + unsigned int version; + union { + struct cork_ipv4 v4; + struct cork_ipv6 v6; + } ip; +}; + + +#define CORK_IPV4_STRING_LENGTH (sizeof "xxx.xxx.xxx.xxx") +#define CORK_IPV6_STRING_LENGTH \ + (sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") +#define CORK_IP_STRING_LENGTH CORK_IPV6_STRING_LENGTH + + +/*** IPv4 ***/ + +/* src must be well-formed: 4 bytes, big-endian */ +#define cork_ipv4_copy(addr, src) \ + (memcpy((addr), (src), sizeof(struct cork_ipv4))) + +#define cork_ipv4_equal(a1, a2) \ + ((a1)->_.u32 == (a2)->_.u32) + +CORK_API int +cork_ipv4_init(struct cork_ipv4 *addr, const char *str); + +CORK_API bool +cork_ipv4_equal_(const struct cork_ipv4 *addr1, const struct cork_ipv4 *addr2); + +CORK_API void +cork_ipv4_to_raw_string(const struct cork_ipv4 *addr, char *dest); + +CORK_API bool +cork_ipv4_is_valid_network(const struct cork_ipv4 *addr, + unsigned int cidr_prefix); + + +/*** IPv6 ***/ + +/* src must be well-formed: 16 bytes, big-endian */ +#define cork_ipv6_copy(addr, src) \ + (memcpy((addr), (src), sizeof(struct cork_ipv6))) + +#define cork_ipv6_equal(a1, a2) \ + ((a1)->_.u64[0] == (a2)->_.u64[0] && \ + (a1)->_.u64[1] == (a2)->_.u64[1]) + +CORK_API int +cork_ipv6_init(struct cork_ipv6 *addr, const char *str); + +CORK_API bool +cork_ipv6_equal_(const struct cork_ipv6 *addr1, const struct cork_ipv6 *addr2); + +CORK_API void +cork_ipv6_to_raw_string(const struct cork_ipv6 *addr, char *dest); + +CORK_API bool +cork_ipv6_is_valid_network(const struct cork_ipv6 *addr, + unsigned int cidr_prefix); + + +/*** Generic IP ***/ + +#define cork_ip_equal(a1, a2) \ + ((a1)->version == 4? \ + ((a2)->version == 4 && cork_ipv4_equal(&(a1)->ip.v4, &(a2)->ip.v4)): \ + ((a2)->version == 6 && cork_ipv6_equal(&(a1)->ip.v6, &(a2)->ip.v6))) + +/* src must be well-formed: 4 bytes, big-endian */ +#define cork_ip_from_ipv4(addr, src) \ + do { \ + (addr)->version = 4; \ + cork_ipv4_copy(&(addr)->ip.v4, (src)); \ + } while (0) + +/* src must be well-formed: 16 bytes, big-endian */ +#define cork_ip_from_ipv6(addr, src) \ + do { \ + (addr)->version = 6; \ + cork_ipv6_copy(&(addr)->ip.v6, (src)); \ + } while (0) + +/* src must be well-formed: 4 bytes, big-endian */ +CORK_API void +cork_ip_from_ipv4_(struct cork_ip *addr, const void *src); + +/* src must be well-formed: 16 bytes, big-endian */ +CORK_API void +cork_ip_from_ipv6_(struct cork_ip *addr, const void *src); + +CORK_API int +cork_ip_init(struct cork_ip *addr, const char *str); + +CORK_API bool +cork_ip_equal_(const struct cork_ip *addr1, const struct cork_ip *addr2); + +CORK_API void +cork_ip_to_raw_string(const struct cork_ip *addr, char *dest); + +CORK_API bool +cork_ip_is_valid_network(const struct cork_ip *addr, unsigned int cidr_prefix); + + +#endif /* LIBCORK_CORE_NET_ADDRESSES_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/timestamp.h b/shadowsocksr-libev/src/libcork/include/libcork/core/timestamp.h new file mode 100644 index 000000000..4eba7b147 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/timestamp.h @@ -0,0 +1,87 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_TIMESTAMP_H +#define LIBCORK_CORE_TIMESTAMP_H + + +#include +#include +#include +#include + + +typedef uint64_t cork_timestamp; + + +#define cork_timestamp_init_sec(ts, sec) \ + do { \ + *(ts) = (((uint64_t) (sec)) << 32); \ + } while (0) + +#define cork_timestamp_init_gsec(ts, sec, gsec) \ + do { \ + *(ts) = (((uint64_t) (sec)) << 32) | \ + (((uint64_t) (gsec)) & 0xffffffff); \ + } while (0) + +#define cork_timestamp_init_msec(ts, sec, msec) \ + do { \ + *(ts) = (((uint64_t) (sec)) << 32) | \ + ((((uint64_t) (msec)) << 32) / 1000); \ + } while (0) + +#define cork_timestamp_init_usec(ts, sec, usec) \ + do { \ + *(ts) = (((uint64_t) (sec)) << 32) | \ + ((((uint64_t) (usec)) << 32) / 1000000); \ + } while (0) + +#define cork_timestamp_init_nsec(ts, sec, nsec) \ + do { \ + *(ts) = (((uint64_t) (sec)) << 32) | \ + ((((uint64_t) (nsec)) << 32) / 1000000000); \ + } while (0) + + +CORK_API void +cork_timestamp_init_now(cork_timestamp *ts); + + +#define cork_timestamp_sec(ts) ((uint32_t) ((ts) >> 32)) +#define cork_timestamp_gsec(ts) ((uint32_t) ((ts) & 0xffffffff)) + +CORK_ATTR_UNUSED +static inline uint64_t +cork_timestamp_gsec_to_units(const cork_timestamp ts, uint64_t denom) +{ + uint64_t half = ((uint64_t) 1 << 31) / denom; + uint64_t gsec = cork_timestamp_gsec(ts); + gsec += half; + gsec *= denom; + gsec >>= 32; + return gsec; +} + +#define cork_timestamp_msec(ts) cork_timestamp_gsec_to_units(ts, 1000) +#define cork_timestamp_usec(ts) cork_timestamp_gsec_to_units(ts, 1000000) +#define cork_timestamp_nsec(ts) cork_timestamp_gsec_to_units(ts, 1000000000) + + +CORK_API int +cork_timestamp_format_utc(const cork_timestamp ts, const char *format, + struct cork_buffer *dest); + +CORK_API int +cork_timestamp_format_local(const cork_timestamp ts, const char *format, + struct cork_buffer *dest); + + +#endif /* LIBCORK_CORE_TIMESTAMP_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/types.h b/shadowsocksr-libev/src/libcork/include/libcork/core/types.h new file mode 100644 index 000000000..f469bedac --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/types.h @@ -0,0 +1,82 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_TYPES_H +#define LIBCORK_CORE_TYPES_H + +/* For now, we assume that the C99 integer types are available using the + * standard headers. */ + +#include +#include +#include +#include +#include + + +/* Define preprocessor macros that contain the size of several built-in + * types. Again, we assume that we have the C99 definitions available. */ + +#if SHRT_MAX == INT8_MAX +#define CORK_SIZEOF_SHORT 1 +#elif SHRT_MAX == INT16_MAX +#define CORK_SIZEOF_SHORT 2 +#elif SHRT_MAX == INT32_MAX +#define CORK_SIZEOF_SHORT 4 +#elif SHRT_MAX == INT64_MAX +#define CORK_SIZEOF_SHORT 8 +#else +#error "Cannot determine size of short" +#endif + +#if INT_MAX == INT8_MAX +#define CORK_SIZEOF_INT 1 +#elif INT_MAX == INT16_MAX +#define CORK_SIZEOF_INT 2 +#elif INT_MAX == INT32_MAX +#define CORK_SIZEOF_INT 4 +#elif INT_MAX == INT64_MAX +#define CORK_SIZEOF_INT 8 +#else +#error "Cannot determine size of int" +#endif + +#if LONG_MAX == INT8_MAX +#define CORK_SIZEOF_LONG 1 +#elif LONG_MAX == INT16_MAX +#define CORK_SIZEOF_LONG 2 +#elif LONG_MAX == INT32_MAX +#define CORK_SIZEOF_LONG 4 +#elif LONG_MAX == INT64_MAX +#define CORK_SIZEOF_LONG 8 +#else +#error "Cannot determine size of long" +#endif + +#if INTPTR_MAX == INT8_MAX +#define CORK_SIZEOF_POINTER 1 +#elif INTPTR_MAX == INT16_MAX +#define CORK_SIZEOF_POINTER 2 +#elif INTPTR_MAX == INT32_MAX +#define CORK_SIZEOF_POINTER 4 +#elif INTPTR_MAX == INT64_MAX +#define CORK_SIZEOF_POINTER 8 +#else +#error "Cannot determine size of void *" +#endif + + +/* Return a pointer to a @c struct, given a pointer to one of its + * fields. */ +#define cork_container_of(field, struct_type, field_name) \ + ((struct_type *) (- offsetof(struct_type, field_name) + \ + (void *) (field))) + +#endif /* LIBCORK_CORE_TYPES_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/core/u128.h b/shadowsocksr-libev/src/libcork/include/libcork/core/u128.h new file mode 100644 index 000000000..692f096d0 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/core/u128.h @@ -0,0 +1,223 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_U128_H +#define LIBCORK_CORE_U128_H + + +#include +#include +#include +#include + +typedef struct { + union { + uint8_t u8[16]; + uint16_t u16[8]; + uint32_t u32[4]; + uint64_t u64[2]; +#if CORK_HOST_ENDIANNESS == CORK_BIG_ENDIAN + struct { uint64_t hi; uint64_t lo; } be64; +#else + struct { uint64_t lo; uint64_t hi; } be64; +#endif +#if CORK_CONFIG_HAVE_GCC_INT128 +#define CORK_U128_HAVE_U128 1 + unsigned __int128 u128; +#elif CORK_CONFIG_HAVE_GCC_MODE_ATTRIBUTE +#define CORK_U128_HAVE_U128 1 + unsigned int u128 __attribute__((mode(TI))); +#else +#define CORK_U128_HAVE_U128 0 +#endif + } _; +} cork_u128; + + +/* i0-3 are given in big-endian order, regardless of host endianness */ +CORK_ATTR_UNUSED +static cork_u128 +cork_u128_from_32(uint32_t i0, uint32_t i1, uint32_t i2, uint32_t i3) +{ + cork_u128 value; +#if CORK_HOST_ENDIANNESS == CORK_BIG_ENDIAN + value._.u32[0] = i0; + value._.u32[1] = i1; + value._.u32[2] = i2; + value._.u32[3] = i3; +#else + value._.u32[3] = i0; + value._.u32[2] = i1; + value._.u32[1] = i2; + value._.u32[0] = i3; +#endif + return value; +} + +/* i0-1 are given in big-endian order, regardless of host endianness */ +CORK_ATTR_UNUSED +static cork_u128 +cork_u128_from_64(uint64_t i0, uint64_t i1) +{ + cork_u128 value; +#if CORK_HOST_ENDIANNESS == CORK_BIG_ENDIAN + value._.u64[0] = i0; + value._.u64[1] = i1; +#else + value._.u64[1] = i0; + value._.u64[0] = i1; +#endif + return value; +} + + +#if CORK_HOST_ENDIANNESS == CORK_BIG_ENDIAN +#define cork_u128_be8(val, idx) ((val)._.u8[(idx)]) +#define cork_u128_be16(val, idx) ((val)._.u16[(idx)]) +#define cork_u128_be32(val, idx) ((val)._.u32[(idx)]) +#define cork_u128_be64(val, idx) ((val)._.u64[(idx)]) +#else +#define cork_u128_be8(val, idx) ((val)._.u8[15 - (idx)]) +#define cork_u128_be16(val, idx) ((val)._.u16[7 - (idx)]) +#define cork_u128_be32(val, idx) ((val)._.u32[3 - (idx)]) +#define cork_u128_be64(val, idx) ((val)._.u64[1 - (idx)]) +#endif + + +CORK_ATTR_UNUSED +static cork_u128 +cork_u128_add(cork_u128 a, cork_u128 b) +{ + cork_u128 result; +#if CORK_U128_HAVE_U128 + result._.u128 = a._.u128 + b._.u128; +#else + result._.be64.lo = a._.be64.lo + b._.be64.lo; + result._.be64.hi = + a._.be64.hi + b._.be64.hi + (result._.be64.lo < a._.be64.lo); +#endif + return result; +} + +CORK_ATTR_UNUSED +static cork_u128 +cork_u128_sub(cork_u128 a, cork_u128 b) +{ + cork_u128 result; +#if CORK_U128_HAVE_U128 + result._.u128 = a._.u128 - b._.u128; +#else + result._.be64.lo = a._.be64.lo - b._.be64.lo; + result._.be64.hi = + a._.be64.hi - b._.be64.hi - (result._.be64.lo > a._.be64.lo); +#endif + return result; +} + + +CORK_ATTR_UNUSED +static bool +cork_u128_eq(cork_u128 a, cork_u128 b) +{ +#if CORK_U128_HAVE_U128 + return (a._.u128 == b._.u128); +#else + return (a._.be64.hi == b._.be64.hi) && (a._.be64.lo == b._.be64.lo); +#endif +} + +CORK_ATTR_UNUSED +static bool +cork_u128_ne(cork_u128 a, cork_u128 b) +{ +#if CORK_U128_HAVE_U128 + return (a._.u128 != b._.u128); +#else + return (a._.be64.hi != b._.be64.hi) || (a._.be64.lo != b._.be64.lo); +#endif +} + +CORK_ATTR_UNUSED +static bool +cork_u128_lt(cork_u128 a, cork_u128 b) +{ +#if CORK_U128_HAVE_U128 + return (a._.u128 < b._.u128); +#else + if (a._.be64.hi == b._.be64.hi) { + return a._.be64.lo < b._.be64.lo; + } else { + return a._.be64.hi < b._.be64.hi; + } +#endif +} + +CORK_ATTR_UNUSED +static bool +cork_u128_le(cork_u128 a, cork_u128 b) +{ +#if CORK_U128_HAVE_U128 + return (a._.u128 <= b._.u128); +#else + if (a._.be64.hi == b._.be64.hi) { + return a._.be64.lo <= b._.be64.lo; + } else { + return a._.be64.hi <= b._.be64.hi; + } +#endif +} + +CORK_ATTR_UNUSED +static bool +cork_u128_gt(cork_u128 a, cork_u128 b) +{ +#if CORK_U128_HAVE_U128 + return (a._.u128 > b._.u128); +#else + if (a._.be64.hi == b._.be64.hi) { + return a._.be64.lo > b._.be64.lo; + } else { + return a._.be64.hi > b._.be64.hi; + } +#endif +} + +CORK_ATTR_UNUSED +static bool +cork_u128_ge(cork_u128 a, cork_u128 b) +{ +#if CORK_U128_HAVE_U128 + return (a._.u128 >= b._.u128); +#else + if (a._.be64.hi == b._.be64.hi) { + return a._.be64.lo >= b._.be64.lo; + } else { + return a._.be64.hi >= b._.be64.hi; + } +#endif +} + + +/* log10(x) = log2(x) / log2(10) ~= log2(x) / 3.322 */ +#define CORK_U128_DECIMAL_LENGTH 44 /* ~= 128 / 3 + 1 + 1 */ + +CORK_API const char * +cork_u128_to_decimal(char *buf, cork_u128 val); + + +#define CORK_U128_HEX_LENGTH 33 + +CORK_API const char * +cork_u128_to_hex(char *buf, cork_u128 val); + +CORK_API const char * +cork_u128_to_padded_hex(char *buf, cork_u128 val); + + +#endif /* LIBCORK_CORE_U128_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/ds.h b/shadowsocksr-libev/src/libcork/include/libcork/ds.h new file mode 100644 index 000000000..8cedd21c5 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/ds.h @@ -0,0 +1,26 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_DS_H +#define LIBCORK_DS_H + +/*** include all of the parts ***/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#endif /* LIBCORK_DS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/ds/array.h b/shadowsocksr-libev/src/libcork/include/libcork/ds/array.h new file mode 100644 index 000000000..d86a8b6f5 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/ds/array.h @@ -0,0 +1,161 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_DS_ARRAY_H +#define LIBCORK_DS_ARRAY_H + + +#include +#include +#include + + +/*----------------------------------------------------------------------- + * Resizable arrays + */ + +struct cork_array_priv; + +struct cork_raw_array { + void *items; + size_t size; + struct cork_array_priv *priv; +}; + +CORK_API void +cork_raw_array_init(struct cork_raw_array *array, size_t element_size); + +CORK_API void +cork_raw_array_done(struct cork_raw_array *array); + +CORK_API void +cork_raw_array_set_callback_data(struct cork_raw_array *array, + void *user_data, cork_free_f free_user_data); + +CORK_API void +cork_raw_array_set_init(struct cork_raw_array *array, cork_init_f init); + +CORK_API void +cork_raw_array_set_done(struct cork_raw_array *array, cork_done_f done); + +CORK_API void +cork_raw_array_set_reuse(struct cork_raw_array *array, cork_init_f reuse); + +CORK_API void +cork_raw_array_set_remove(struct cork_raw_array *array, cork_done_f remove); + +CORK_API size_t +cork_raw_array_element_size(const struct cork_raw_array *array); + +CORK_API void +cork_raw_array_clear(struct cork_raw_array *array); + +CORK_API void * +cork_raw_array_elements(const struct cork_raw_array *array); + +CORK_API void * +cork_raw_array_at(const struct cork_raw_array *array, size_t index); + +CORK_API size_t +cork_raw_array_size(const struct cork_raw_array *array); + +CORK_API bool +cork_raw_array_is_empty(const struct cork_raw_array *array); + +CORK_API void +cork_raw_array_ensure_size(struct cork_raw_array *array, size_t count); + +CORK_API void * +cork_raw_array_append(struct cork_raw_array *array); + +CORK_API int +cork_raw_array_copy(struct cork_raw_array *dest, + const struct cork_raw_array *src, + cork_copy_f copy, void *user_data); + + +/*----------------------------------------------------------------------- + * Type-checked resizable arrays + */ + +#define cork_array(T) \ + struct { \ + T *items; \ + size_t size; \ + struct cork_array_priv *priv; \ + } + +#define cork_array_element_size(arr) (sizeof((arr)->items[0])) +#define cork_array_elements(arr) ((arr)->items) +#define cork_array_at(arr, i) ((arr)->items[(i)]) +#define cork_array_size(arr) ((arr)->size) +#define cork_array_is_empty(arr) ((arr)->size == 0) +#define cork_array_to_raw(arr) ((struct cork_raw_array *) (void *) (arr)) + +#define cork_array_init(arr) \ + (cork_raw_array_init(cork_array_to_raw(arr), cork_array_element_size(arr))) +#define cork_array_done(arr) \ + (cork_raw_array_done(cork_array_to_raw(arr))) + +#define cork_array_set_callback_data(arr, ud, fud) \ + (cork_raw_array_set_callback_data(cork_array_to_raw(arr), (ud), (fud))) +#define cork_array_set_init(arr, i) \ + (cork_raw_array_set_init(cork_array_to_raw(arr), (i))) +#define cork_array_set_done(arr, d) \ + (cork_raw_array_set_done(cork_array_to_raw(arr), (d))) +#define cork_array_set_reuse(arr, r) \ + (cork_raw_array_set_reuse(cork_array_to_raw(arr), (r))) +#define cork_array_set_remove(arr, r) \ + (cork_raw_array_set_remove(cork_array_to_raw(arr), (r))) + +#define cork_array_clear(arr) \ + (cork_raw_array_clear(cork_array_to_raw(arr))) +#define cork_array_copy(d, s, c, ud) \ + (cork_raw_array_copy(cork_array_to_raw(d), cork_array_to_raw(s), (c), (ud))) + +#define cork_array_ensure_size(arr, count) \ + (cork_raw_array_ensure_size(cork_array_to_raw(arr), (count))) + +#define cork_array_append(arr, element) \ + (cork_raw_array_append(cork_array_to_raw(arr)), \ + ((arr)->items[(arr)->size - 1] = (element), (void) 0)) + +#define cork_array_append_get(arr) \ + (cork_raw_array_append(cork_array_to_raw(arr)), \ + &(arr)->items[(arr)->size - 1]) + + +/*----------------------------------------------------------------------- + * Builtin array types + */ + +CORK_API void +cork_raw_pointer_array_init(struct cork_raw_array *array, cork_free_f free); + +#define cork_pointer_array_init(arr, f) \ + (cork_raw_pointer_array_init(cork_array_to_raw(arr), (f))) + +struct cork_string_array { + const char **items; + size_t size; + struct cork_array_priv *priv; +}; + +CORK_API void +cork_string_array_init(struct cork_string_array *array); + +CORK_API void +cork_string_array_append(struct cork_string_array *array, const char *str); + +CORK_API void +cork_string_array_copy(struct cork_string_array *dest, + const struct cork_string_array *src); + + +#endif /* LIBCORK_DS_ARRAY_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/ds/bitset.h b/shadowsocksr-libev/src/libcork/include/libcork/ds/bitset.h new file mode 100644 index 000000000..8744cfc62 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/ds/bitset.h @@ -0,0 +1,70 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_DS_BITS_H +#define LIBCORK_DS_BITS_H + + +#include +#include + + +/*----------------------------------------------------------------------- + * Bit sets + */ + +struct cork_bitset { + uint8_t *bits; + size_t bit_count; + size_t byte_count; +}; + +CORK_API struct cork_bitset * +cork_bitset_new(size_t bit_count); + +CORK_API void +cork_bitset_init(struct cork_bitset *set, size_t bit_count); + +CORK_API void +cork_bitset_free(struct cork_bitset *set); + +CORK_API void +cork_bitset_done(struct cork_bitset *set); + +CORK_API void +cork_bitset_clear(struct cork_bitset *set); + +/* Extract the byte that contains a particular bit in an array. */ +#define cork_bitset_byte_for_bit(set, i) \ + ((set)->bits[(i) / 8]) + +/* Create a bit mask that extracts a particular bit from the byte that it lives + * in. */ +#define cork_bitset_pos_mask_for_bit(i) \ + (0x80 >> ((i) % 8)) + +/* Create a bit mask that extracts everything except for a particular bit from + * the byte that it lives in. */ +#define cork_bitset_neg_mask_for_bit(i) \ + (~cork_bitset_pos_mask_for_bit(i)) + +/* Return whether a particular bit is set in a byte array. Bits are numbered + * from 0, in a big-endian order. */ +#define cork_bitset_get(set, i) \ + ((cork_bitset_byte_for_bit(set, i) & cork_bitset_pos_mask_for_bit(i)) != 0) + +/* Set (or unset) a particular bit is set in a byte array. Bits are numbered + * from 0, in a big-endian order. */ +#define cork_bitset_set(set, i, val) \ + (cork_bitset_byte_for_bit(set, i) = \ + (cork_bitset_byte_for_bit(set, i) & cork_bitset_neg_mask_for_bit(i)) \ + | ((val)? cork_bitset_pos_mask_for_bit(i): 0)) + + +#endif /* LIBCORK_DS_BITS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/ds/buffer.h b/shadowsocksr-libev/src/libcork/include/libcork/ds/buffer.h new file mode 100644 index 000000000..39fbbfa1f --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/ds/buffer.h @@ -0,0 +1,163 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_DS_BUFFER_H +#define LIBCORK_DS_BUFFER_H + + +#include + +#include +#include +#include + + +struct cork_buffer { + /* The current contents of the buffer. */ + void *buf; + /* The current size of the buffer. */ + size_t size; + /* The amount of space allocated for buf. */ + size_t allocated_size; +}; + + +CORK_API void +cork_buffer_init(struct cork_buffer *buffer); + +#define CORK_BUFFER_INIT() { NULL, 0, 0 } + +CORK_API struct cork_buffer * +cork_buffer_new(void); + +CORK_API void +cork_buffer_done(struct cork_buffer *buffer); + +CORK_API void +cork_buffer_free(struct cork_buffer *buffer); + + +CORK_API bool +cork_buffer_equal(const struct cork_buffer *buffer1, + const struct cork_buffer *buffer2); + + +CORK_API void +cork_buffer_ensure_size(struct cork_buffer *buffer, size_t desired_size); + + +CORK_API void +cork_buffer_clear(struct cork_buffer *buffer); + +CORK_API void +cork_buffer_truncate(struct cork_buffer *buffer, size_t length); + +#define cork_buffer_byte(buffer, i) (((const uint8_t *) (buffer)->buf)[(i)]) +#define cork_buffer_char(buffer, i) (((const char *) (buffer)->buf)[(i)]) + + +/*----------------------------------------------------------------------- + * A whole bunch of methods for adding data + */ + +#define cork_buffer_copy(dest, src) \ + (cork_buffer_set((dest), (src)->buf, (src)->size)) + +CORK_API void +cork_buffer_set(struct cork_buffer *buffer, const void *src, size_t length); + +#define cork_buffer_append_copy(dest, src) \ + (cork_buffer_append((dest), (src)->buf, (src)->size)) + +CORK_API void +cork_buffer_append(struct cork_buffer *buffer, const void *src, size_t length); + + +CORK_API void +cork_buffer_set_string(struct cork_buffer *buffer, const char *str); + +CORK_API void +cork_buffer_append_string(struct cork_buffer *buffer, const char *str); + +#define cork_buffer_set_literal(buffer, str) \ + (cork_buffer_set((buffer), (str), sizeof((str)) - 1)) + +#define cork_buffer_append_literal(buffer, str) \ + (cork_buffer_append((buffer), (str), sizeof((str)) - 1)) + + +CORK_API void +cork_buffer_printf(struct cork_buffer *buffer, const char *format, ...) + CORK_ATTR_PRINTF(2,3); + +CORK_API void +cork_buffer_append_printf(struct cork_buffer *buffer, const char *format, ...) + CORK_ATTR_PRINTF(2,3); + +CORK_API void +cork_buffer_vprintf(struct cork_buffer *buffer, const char *format, + va_list args) + CORK_ATTR_PRINTF(2,0); + +CORK_API void +cork_buffer_append_vprintf(struct cork_buffer *buffer, const char *format, + va_list args) + CORK_ATTR_PRINTF(2,0); + + +/*----------------------------------------------------------------------- + * Some helpers for pretty-printing data + */ + +CORK_API void +cork_buffer_append_indent(struct cork_buffer *buffer, size_t indent); + +CORK_API void +cork_buffer_append_c_string(struct cork_buffer *buffer, + const char *src, size_t length); + +CORK_API void +cork_buffer_append_hex_dump(struct cork_buffer *buffer, size_t indent, + const char *src, size_t length); + +CORK_API void +cork_buffer_append_multiline(struct cork_buffer *buffer, size_t indent, + const char *src, size_t length); + +CORK_API void +cork_buffer_append_binary(struct cork_buffer *buffer, size_t indent, + const char *src, size_t length); + + +/*----------------------------------------------------------------------- + * Buffer's managed buffer/slice implementation + */ + +#include +#include + +CORK_API struct cork_managed_buffer * +cork_buffer_to_managed_buffer(struct cork_buffer *buffer); + +CORK_API int +cork_buffer_to_slice(struct cork_buffer *buffer, struct cork_slice *slice); + + +/*----------------------------------------------------------------------- + * Buffer's stream consumer implementation + */ + +#include + +CORK_API struct cork_stream_consumer * +cork_buffer_to_stream_consumer(struct cork_buffer *buffer); + + +#endif /* LIBCORK_DS_BUFFER_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/ds/dllist.h b/shadowsocksr-libev/src/libcork/include/libcork/ds/dllist.h new file mode 100644 index 000000000..7fc22bfe6 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/ds/dllist.h @@ -0,0 +1,151 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_DS_DLLIST_H +#define LIBCORK_DS_DLLIST_H + +#include +#include + + +struct cork_dllist_item { + /* A pointer to the next element in the list. */ + struct cork_dllist_item *next; + /* A pointer to the previous element in the list. */ + struct cork_dllist_item *prev; +}; + + +struct cork_dllist { + /* The sentinel element for this list. */ + struct cork_dllist_item head; +}; + +#define CORK_DLLIST_INIT(list) { { &(list).head, &(list).head } } + +#define cork_dllist_init(list) \ + do { \ + (list)->head.next = &(list)->head; \ + (list)->head.prev = &(list)->head; \ + } while (0) + + + +/* DEPRECATED! Use cork_dllist_foreach or cork_dllist_visit instead. */ +typedef void +(*cork_dllist_map_func)(struct cork_dllist_item *element, void *user_data); + +CORK_API void +cork_dllist_map(struct cork_dllist *list, + cork_dllist_map_func func, void *user_data); + + +typedef int +cork_dllist_visit_f(void *ud, struct cork_dllist_item *element); + +CORK_API int +cork_dllist_visit(struct cork_dllist *list, void *ud, + cork_dllist_visit_f *visit); + + +#define cork_dllist_foreach_void(list, curr, _next) \ + for ((curr) = cork_dllist_start((list)), (_next) = (curr)->next; \ + !cork_dllist_is_end((list), (curr)); \ + (curr) = (_next), (_next) = (curr)->next) + +#define cork_dllist_foreach(list, curr, _next, etype, element, item_field) \ + for ((curr) = cork_dllist_start((list)), (_next) = (curr)->next, \ + (element) = cork_container_of((curr), etype, item_field); \ + !cork_dllist_is_end((list), (curr)); \ + (curr) = (_next), (_next) = (curr)->next, \ + (element) = cork_container_of((curr), etype, item_field)) + + +CORK_API size_t +cork_dllist_size(const struct cork_dllist *list); + + +#define cork_dllist_add_after(pred, element) \ + do { \ + (element)->prev = (pred); \ + (element)->next = (pred)->next; \ + (pred)->next->prev = (element); \ + (pred)->next = (element); \ + } while (0) + +#define cork_dllist_add_before(succ, element) \ + do { \ + (element)->next = (succ); \ + (element)->prev = (succ)->prev; \ + (succ)->prev->next = (element); \ + (succ)->prev = (element); \ + } while (0) + +#define cork_dllist_add_to_head(list, element) \ + cork_dllist_add_after(&(list)->head, (element)) + +#define cork_dllist_add_to_tail(list, element) \ + cork_dllist_add_before(&(list)->head, (element)) + +#define cork_dllist_add cork_dllist_add_to_tail + + +#define cork_dllist_add_list_to_head(dest, src) \ + do { \ + struct cork_dllist_item *dest_start = cork_dllist_start(dest); \ + struct cork_dllist_item *src_start = cork_dllist_start(src); \ + dest_start->prev = &(src)->head; \ + src_start->prev = &(dest)->head; \ + (src)->head.next = dest_start; \ + (dest)->head.next = src_start; \ + cork_dllist_remove(&(src)->head); \ + cork_dllist_init(src); \ + } while (0) + +#define cork_dllist_add_list_to_tail(dest, src) \ + do { \ + struct cork_dllist_item *dest_end = cork_dllist_end(dest); \ + struct cork_dllist_item *src_end = cork_dllist_end(src); \ + dest_end->next = &(src)->head; \ + src_end->next = &(dest)->head; \ + (src)->head.prev = dest_end; \ + (dest)->head.prev = src_end; \ + cork_dllist_remove(&(src)->head); \ + cork_dllist_init(src); \ + } while (0) + + +#define cork_dllist_remove(element) \ + do { \ + (element)->prev->next = (element)->next; \ + (element)->next->prev = (element)->prev; \ + } while (0) + + +#define cork_dllist_is_empty(list) \ + (cork_dllist_is_end((list), cork_dllist_start((list)))) + + +#define cork_dllist_head(list) \ + (((list)->head.next == &(list)->head)? NULL: (list)->head.next) +#define cork_dllist_tail(list) \ + (((list)->head.prev == &(list)->head)? NULL: (list)->head.prev) + +#define cork_dllist_start(list) \ + ((list)->head.next) +#define cork_dllist_end(list) \ + ((list)->head.prev) + +#define cork_dllist_is_start(list, element) \ + ((element) == &(list)->head) +#define cork_dllist_is_end(list, element) \ + ((element) == &(list)->head) + + +#endif /* LIBCORK_DS_DLLIST_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/ds/hash-table.h b/shadowsocksr-libev/src/libcork/include/libcork/ds/hash-table.h new file mode 100644 index 000000000..6a0eee407 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/ds/hash-table.h @@ -0,0 +1,159 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_DS_HASH_TABLE_H +#define LIBCORK_DS_HASH_TABLE_H + +#include +#include +#include +#include +#include +#include + + +/*----------------------------------------------------------------------- + * Hash tables + */ + +struct cork_hash_table_entry { + cork_hash hash; + void *key; + void *value; +}; + + +struct cork_hash_table; + +CORK_API struct cork_hash_table * +cork_hash_table_new(size_t initial_size, unsigned int flags); + +CORK_API void +cork_hash_table_free(struct cork_hash_table *table); + + +CORK_API void +cork_hash_table_set_user_data(struct cork_hash_table *table, + void *user_data, cork_free_f free_user_data); + +CORK_API void +cork_hash_table_set_equals(struct cork_hash_table *table, cork_equals_f equals); + +CORK_API void +cork_hash_table_set_free_key(struct cork_hash_table *table, cork_free_f free); + +CORK_API void +cork_hash_table_set_free_value(struct cork_hash_table *table, cork_free_f free); + +CORK_API void +cork_hash_table_set_hash(struct cork_hash_table *table, cork_hash_f hash); + + +CORK_API void +cork_hash_table_clear(struct cork_hash_table *table); + + +CORK_API void +cork_hash_table_ensure_size(struct cork_hash_table *table, + size_t desired_count); + +CORK_API size_t +cork_hash_table_size(const struct cork_hash_table *table); + + +CORK_API void * +cork_hash_table_get(const struct cork_hash_table *table, const void *key); + +CORK_API void * +cork_hash_table_get_hash(const struct cork_hash_table *table, + cork_hash hash, const void *key); + +CORK_API struct cork_hash_table_entry * +cork_hash_table_get_entry(const struct cork_hash_table *table, + const void *key); + +CORK_API struct cork_hash_table_entry * +cork_hash_table_get_entry_hash(const struct cork_hash_table *table, + cork_hash hash, const void *key); + +CORK_API struct cork_hash_table_entry * +cork_hash_table_get_or_create(struct cork_hash_table *table, + void *key, bool *is_new); + +CORK_API struct cork_hash_table_entry * +cork_hash_table_get_or_create_hash(struct cork_hash_table *table, + cork_hash hash, void *key, bool *is_new); + +CORK_API void +cork_hash_table_put(struct cork_hash_table *table, + void *key, void *value, + bool *is_new, void **old_key, void **old_value); + +CORK_API void +cork_hash_table_put_hash(struct cork_hash_table *table, + cork_hash hash, void *key, void *value, + bool *is_new, void **old_key, void **old_value); + +CORK_API void +cork_hash_table_delete_entry(struct cork_hash_table *table, + struct cork_hash_table_entry *entry); + +CORK_API bool +cork_hash_table_delete(struct cork_hash_table *table, const void *key, + void **deleted_key, void **deleted_value); + +CORK_API bool +cork_hash_table_delete_hash(struct cork_hash_table *table, + cork_hash hash, const void *key, + void **deleted_key, void **deleted_value); + + +enum cork_hash_table_map_result { + /* Abort the current @ref cork_hash_table_map operation. */ + CORK_HASH_TABLE_MAP_ABORT = 0, + /* Continue on to the next entry in the hash table. */ + CORK_HASH_TABLE_MAP_CONTINUE = 1, + /* Delete the entry that was just processed, and then continue on to + * the next entry in the hash table. */ + CORK_HASH_TABLE_MAP_DELETE = 2 +}; + +typedef enum cork_hash_table_map_result +(*cork_hash_table_map_f)(void *user_data, struct cork_hash_table_entry *entry); + +CORK_API void +cork_hash_table_map(struct cork_hash_table *table, void *user_data, + cork_hash_table_map_f mapper); + + +struct cork_hash_table_iterator { + struct cork_hash_table *table; + void *priv; +}; + +CORK_API void +cork_hash_table_iterator_init(struct cork_hash_table *table, + struct cork_hash_table_iterator *iterator); + +CORK_API struct cork_hash_table_entry * +cork_hash_table_iterator_next(struct cork_hash_table_iterator *iterator); + + +/*----------------------------------------------------------------------- + * Built-in key types + */ + +CORK_API struct cork_hash_table * +cork_string_hash_table_new(size_t initial_size, unsigned int flags); + +CORK_API struct cork_hash_table * +cork_pointer_hash_table_new(size_t initial_size, unsigned int flags); + + +#endif /* LIBCORK_DS_HASH_TABLE_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/ds/managed-buffer.h b/shadowsocksr-libev/src/libcork/include/libcork/ds/managed-buffer.h new file mode 100644 index 000000000..e74ef3b6b --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/ds/managed-buffer.h @@ -0,0 +1,76 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_DS_MANAGED_BUFFER_H +#define LIBCORK_DS_MANAGED_BUFFER_H + +#include +#include +#include + + +/*----------------------------------------------------------------------- + * Managed buffers + */ + +struct cork_managed_buffer; + +struct cork_managed_buffer_iface { + /* Free the contents of a managed buffer, and the managed buffer + * object itself. */ + void + (*free)(struct cork_managed_buffer *buf); +}; + + +struct cork_managed_buffer { + /* The buffer that this instance manages */ + const void *buf; + /* The size of buf */ + size_t size; + /* A reference count for the buffer. If this drops to 0, the buffer + * will be finalized. */ + volatile int ref_count; + /* The managed buffer implementation for this instance. */ + struct cork_managed_buffer_iface *iface; +}; + + +CORK_API struct cork_managed_buffer * +cork_managed_buffer_new_copy(const void *buf, size_t size); + + +typedef void +(*cork_managed_buffer_freer)(void *buf, size_t size); + +CORK_API struct cork_managed_buffer * +cork_managed_buffer_new(const void *buf, size_t size, + cork_managed_buffer_freer free); + + +CORK_API struct cork_managed_buffer * +cork_managed_buffer_ref(struct cork_managed_buffer *buf); + +CORK_API void +cork_managed_buffer_unref(struct cork_managed_buffer *buf); + + +CORK_API int +cork_managed_buffer_slice(struct cork_slice *dest, + struct cork_managed_buffer *buffer, + size_t offset, size_t length); + +CORK_API int +cork_managed_buffer_slice_offset(struct cork_slice *dest, + struct cork_managed_buffer *buffer, + size_t offset); + + +#endif /* LIBCORK_DS_MANAGED_BUFFER_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/ds/ring-buffer.h b/shadowsocksr-libev/src/libcork/include/libcork/ds/ring-buffer.h new file mode 100644 index 000000000..d76affdc5 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/ds/ring-buffer.h @@ -0,0 +1,60 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_DS_RING_BUFFER_H +#define LIBCORK_DS_RING_BUFFER_H + +#include +#include + + +struct cork_ring_buffer { + /* The elements of the ring buffer */ + void **elements; + /* The number of elements that can be stored in this ring + * buffer. */ + size_t allocated_size; + /* The actual number of elements currently in the ring buffer. */ + size_t size; + /* The index of the next element to read from the buffer */ + size_t read_index; + /* The index of the next element to write into the buffer */ + size_t write_index; +}; + + +CORK_API int +cork_ring_buffer_init(struct cork_ring_buffer *buf, size_t size); + +CORK_API struct cork_ring_buffer * +cork_ring_buffer_new(size_t size); + +CORK_API void +cork_ring_buffer_done(struct cork_ring_buffer *buf); + +CORK_API void +cork_ring_buffer_free(struct cork_ring_buffer *buf); + + +#define cork_ring_buffer_is_empty(buf) ((buf)->size == 0) +#define cork_ring_buffer_is_full(buf) ((buf)->size == (buf)->allocated_size) + + +CORK_API int +cork_ring_buffer_add(struct cork_ring_buffer *buf, void *element); + +CORK_API void * +cork_ring_buffer_pop(struct cork_ring_buffer *buf); + +CORK_API void * +cork_ring_buffer_peek(struct cork_ring_buffer *buf); + + +#endif /* LIBCORK_DS_RING_BUFFER_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/ds/slice.h b/shadowsocksr-libev/src/libcork/include/libcork/ds/slice.h new file mode 100644 index 000000000..9daefee3c --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/ds/slice.h @@ -0,0 +1,151 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_DS_SLICE_H +#define LIBCORK_DS_SLICE_H + +#include +#include + + +/*----------------------------------------------------------------------- + * Error handling + */ + +/* hash of "libcork/ds/slice.h" */ +#define CORK_SLICE_ERROR 0x960ca750 + +enum cork_slice_error { + /* Trying to slice a nonexistent subset of a buffer */ + CORK_SLICE_INVALID_SLICE +}; + + +/*----------------------------------------------------------------------- + * Slices + */ + +struct cork_slice; + +struct cork_slice_iface { + /* Free the slice. Can be NULL if you don't need to free any + * underlying buffer. */ + void + (*free)(struct cork_slice *self); + + /* Create a copy of a slice. You can assume that offset and length + * refer to a valid subset of the buffer. */ + int + (*copy)(struct cork_slice *dest, const struct cork_slice *self, + size_t offset, size_t length); + + /* Create a “light” copy of a slice. A light copy is not allowed to exist + * longer than the slice that it was copied from, which can sometimes let + * you perform less work to produce the copy. You can assume that offset + * and length refer to a valid subset of the buffer. */ + int + (*light_copy)(struct cork_slice *dest, const struct cork_slice *self, + size_t offset, size_t length); + + /* Update the current slice to point at a different subset. You can + * assume that offset and length refer to a valid subset of the + * buffer. Can be NULL if you don't need to do anything special to + * the underlying buffer; in this case, we'll update the slice's buf + * and size fields for you. */ + int + (*slice)(struct cork_slice *self, size_t offset, size_t length); +}; + + +struct cork_slice { + /* The beginning of the sliced portion of the buffer. */ + const void *buf; + /* The length of the sliced portion of the buffer. */ + size_t size; + /* The slice implementation of the underlying buffer. */ + struct cork_slice_iface *iface; + /* An opaque pointer used by the slice implementation to refer to + * the underlying buffer. */ + void *user_data; +}; + + +CORK_API void +cork_slice_clear(struct cork_slice *slice); + +#define cork_slice_is_empty(slice) ((slice)->buf == NULL) + + +CORK_API int +cork_slice_copy(struct cork_slice *dest, const struct cork_slice *slice, + size_t offset, size_t length); + +#define cork_slice_copy_fast(dest, slice, offset, length) \ + ((slice)->iface->copy((dest), (slice), (offset), (length))) + +CORK_API int +cork_slice_copy_offset(struct cork_slice *dest, const struct cork_slice *slice, + size_t offset); + +#define cork_slice_copy_offset_fast(dest, slice, offset) \ + ((slice)->iface->copy \ + ((dest), (slice), (offset), (slice)->size - (offset))) + + +CORK_API int +cork_slice_light_copy(struct cork_slice *dest, const struct cork_slice *slice, + size_t offset, size_t length); + +#define cork_slice_light_copy_fast(dest, slice, offset, length) \ + ((slice)->iface->light_copy((dest), (slice), (offset), (length))) + +CORK_API int +cork_slice_light_copy_offset(struct cork_slice *dest, + const struct cork_slice *slice, size_t offset); + +#define cork_slice_light_copy_offset_fast(dest, slice, offset) \ + ((slice)->iface->light_copy \ + ((dest), (slice), (offset), (slice)->size - (offset))) + + +CORK_API int +cork_slice_slice(struct cork_slice *slice, size_t offset, size_t length); + +#define cork_slice_slice_fast(_slice, offset, length) \ + ((_slice)->iface->slice == NULL? \ + ((_slice)->buf += (offset), (_slice)->size = (length), 0): \ + ((_slice)->iface->slice((_slice), (offset), (length)))) + +CORK_API int +cork_slice_slice_offset(struct cork_slice *slice, size_t offset); + +#define cork_slice_slice_offset_fast(_slice, offset) \ + ((_slice)->iface->slice == NULL? \ + ((_slice)->buf += (offset), (_slice)->size -= (offset), 0): \ + ((_slice)->iface->slice \ + ((_slice), (offset), (_slice)->size - (offset)))) + + +CORK_API void +cork_slice_finish(struct cork_slice *slice); + +CORK_API bool +cork_slice_equal(const struct cork_slice *slice1, + const struct cork_slice *slice2); + +CORK_API void +cork_slice_init_static(struct cork_slice *dest, const void *buf, size_t size); + +CORK_API void +cork_slice_init_copy_once(struct cork_slice *dest, const void *buf, + size_t size); + + +#endif /* LIBCORK_DS_SLICE_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/ds/stream.h b/shadowsocksr-libev/src/libcork/include/libcork/ds/stream.h new file mode 100644 index 000000000..b36972576 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/ds/stream.h @@ -0,0 +1,64 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_DS_STREAM_H +#define LIBCORK_DS_STREAM_H + +#include + +#include +#include + + +struct cork_stream_consumer { + int + (*data)(struct cork_stream_consumer *consumer, + const void *buf, size_t size, bool is_first_chunk); + + int + (*eof)(struct cork_stream_consumer *consumer); + + void + (*free)(struct cork_stream_consumer *consumer); +}; + + +#define cork_stream_consumer_data(consumer, buf, size, is_first) \ + ((consumer)->data((consumer), (buf), (size), (is_first))) + +#define cork_stream_consumer_eof(consumer) \ + ((consumer)->eof((consumer))) + +#define cork_stream_consumer_free(consumer) \ + ((consumer)->free((consumer))) + + +CORK_API int +cork_consume_fd(struct cork_stream_consumer *consumer, int fd); + +CORK_API int +cork_consume_file(struct cork_stream_consumer *consumer, FILE *fp); + +CORK_API int +cork_consume_file_from_path(struct cork_stream_consumer *consumer, + const char *path, int flags); + + +CORK_API struct cork_stream_consumer * +cork_fd_consumer_new(int fd); + +CORK_API struct cork_stream_consumer * +cork_file_consumer_new(FILE *fp); + +CORK_API struct cork_stream_consumer * +cork_file_from_path_consumer_new(const char *path, int flags); + + +#endif /* LIBCORK_DS_STREAM_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/helpers/errors.h b/shadowsocksr-libev/src/libcork/include/libcork/helpers/errors.h new file mode 100644 index 000000000..377667573 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/helpers/errors.h @@ -0,0 +1,142 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_HELPERS_ERRORS_H +#define LIBCORK_HELPERS_ERRORS_H + + +/* This header is *not* automatically included when you include + * libcork/core.h, since we define some macros that don't include a + * cork_ or CORK_ prefix. Don't want to pollute your namespace unless + * you ask for it! */ + + +#include +#include +#include + + +#if !defined(CORK_PRINT_ERRORS) +#define CORK_PRINT_ERRORS 0 +#endif + +#if !defined(CORK_PRINT_ERROR) +#if CORK_PRINT_ERRORS +#include +#define CORK_PRINT_ERROR_(func, file, line) \ + fprintf(stderr, "---\nError in %s (%s:%u)\n %s\n", \ + (func), (file), (unsigned int) (line), \ + cork_error_message()); +#define CORK_PRINT_ERROR() CORK_PRINT_ERROR_(__func__, __FILE__, __LINE__) +#else +#define CORK_PRINT_ERROR() /* do nothing */ +#endif +#endif + + +/* A bunch of macros for calling a function that returns an error. If + * an error occurs, it will automatically be propagated out as the + * result of your own function. With these macros, you won't have a + * check to check or modify the error condition; it's returned as-is. + * + * XZ_check + * + * where: + * + * X = what happens if an error occurs + * "e" = jump to the "error" label + * "rY" = return a default error result (Y defined below) + * "x" = return an error result that you specify + * + * Y = your return type + * "i" = int + * "p" = some pointer type + * + * Z = the return type of the function you're calling + * "e" = use cork_error_occurred() to check + * "i" = int + * "p" = some pointer type + * + * In all cases, we assume that your function has a cork_error parameter + * called "err". + */ + + +/* jump to "error" label */ + +#define ee_check(call) \ + do { \ + (call); \ + if (CORK_UNLIKELY(cork_error_occurred())) { \ + CORK_PRINT_ERROR(); \ + goto error; \ + } \ + } while (0) + +#define ei_check(call) \ + do { \ + int __rc = (call); \ + if (CORK_UNLIKELY(__rc != 0)) { \ + CORK_PRINT_ERROR(); \ + goto error; \ + } \ + } while (0) + +#define ep_check(call) \ + do { \ + const void *__result = (call); \ + if (CORK_UNLIKELY(__result == NULL)) { \ + CORK_PRINT_ERROR(); \ + goto error; \ + } \ + } while (0) + + +/* return specific error code */ + +#define xe_check(result, call) \ + do { \ + (call); \ + if (CORK_UNLIKELY(cork_error_occurred())) { \ + CORK_PRINT_ERROR(); \ + return result; \ + } \ + } while (0) + +#define xi_check(result, call) \ + do { \ + int __rc = (call); \ + if (CORK_UNLIKELY(__rc != 0)) { \ + CORK_PRINT_ERROR(); \ + return result; \ + } \ + } while (0) + +#define xp_check(result, call) \ + do { \ + const void *__result = (call); \ + if (CORK_UNLIKELY(__result == NULL)) { \ + CORK_PRINT_ERROR(); \ + return result; \ + } \ + } while (0) + + +/* return default error code */ + +#define rie_check(call) xe_check(-1, call) +#define rii_check(call) xi_check(__rc, call) +#define rip_check(call) xp_check(-1, call) +#define rpe_check(call) xe_check(NULL, call) +#define rpi_check(call) xi_check(NULL, call) +#define rpp_check(call) xp_check(NULL, call) + + +#endif /* LIBCORK_HELPERS_ERRORS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/helpers/gc.h b/shadowsocksr-libev/src/libcork/include/libcork/helpers/gc.h new file mode 100644 index 000000000..43742445b --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/helpers/gc.h @@ -0,0 +1,51 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2011-2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_HELPERS_REFCOUNT_H +#define LIBCORK_HELPERS_REFCOUNT_H + + +#include +#include + + +#define _free_(name) \ +static void \ +name##__free(void *obj) + + +#define _recurse_(name) \ +static void \ +name##__recurse(struct cork_gc *gc, void *obj, \ + cork_gc_recurser recurse, void *ud) + + +#define _gc_(name) \ +static struct cork_gc_obj_iface name##__gc = { \ + name##__free, name##__recurse \ +}; + +#define _gc_no_free_(name) \ +static struct cork_gc_obj_iface name##__gc = { \ + NULL, name##__recurse \ +}; + +#define _gc_no_recurse_(name) \ +static struct cork_gc_obj_iface name##__gc = { \ + name##__free, NULL \ +}; + +#define _gc_leaf_(name) \ +static struct cork_gc_obj_iface name##__gc = { \ + NULL, NULL \ +}; + + +#endif /* LIBCORK_HELPERS_REFCOUNT_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/helpers/posix.h b/shadowsocksr-libev/src/libcork/include/libcork/helpers/posix.h new file mode 100644 index 000000000..7a933d5bb --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/helpers/posix.h @@ -0,0 +1,87 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_HELPERS_POSIX_H +#define LIBCORK_HELPERS_POSIX_H + +/* This header is *not* automatically included when you include + * libcork/core.h, since we define some macros that don't include a + * cork_ or CORK_ prefix. Don't want to pollute your namespace unless + * you ask for it! */ + +#include + +#include +#include +#include + + +#if !defined(CORK_PRINT_ERRORS) +#define CORK_PRINT_ERRORS 0 +#endif + +#if !defined(CORK_PRINT_ERROR) +#if CORK_PRINT_ERRORS +#include +#define CORK_PRINT_ERROR_(func, file, line) \ + fprintf(stderr, "---\nError in %s (%s:%u)\n %s\n", \ + (func), (file), (unsigned int) (line), \ + cork_error_message()); +#define CORK_PRINT_ERROR() CORK_PRINT_ERROR_(__func__, __FILE__, __LINE__) +#else +#define CORK_PRINT_ERROR() /* do nothing */ +#endif +#endif + + +#define xi_check_posix(call, on_error) \ + do { \ + while (true) { \ + if ((call) == -1) { \ + if (errno == EINTR) { \ + continue; \ + } else { \ + cork_system_error_set(); \ + CORK_PRINT_ERROR(); \ + on_error; \ + } \ + } else { \ + break; \ + } \ + } \ + } while (0) + +#define xp_check_posix(call, on_error) \ + do { \ + while (true) { \ + if ((call) == NULL) { \ + if (errno == EINTR) { \ + continue; \ + } else { \ + cork_system_error_set(); \ + CORK_PRINT_ERROR(); \ + on_error; \ + } \ + } else { \ + break; \ + } \ + } \ + } while (0) + + +#define ei_check_posix(call) xi_check_posix(call, goto error) +#define rii_check_posix(call) xi_check_posix(call, return -1) +#define rpi_check_posix(call) xi_check_posix(call, return NULL) + +#define ep_check_posix(call) xp_check_posix(call, goto error) +#define rip_check_posix(call) xp_check_posix(call, return -1) +#define rpp_check_posix(call) xp_check_posix(call, return NULL) + + +#endif /* LIBCORK_HELPERS_POSIX_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/os.h b/shadowsocksr-libev/src/libcork/include/libcork/os.h new file mode 100644 index 000000000..116396288 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/os.h @@ -0,0 +1,20 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_OS_H +#define LIBCORK_OS_H + +/*** include all of the parts ***/ + +#include +#include +#include + +#endif /* LIBCORK_OS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/os/files.h b/shadowsocksr-libev/src/libcork/include/libcork/os/files.h new file mode 100644 index 000000000..82f1f30d6 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/os/files.h @@ -0,0 +1,271 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012-2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_FILES_H +#define LIBCORK_CORE_FILES_H + +#include +#include + + +/*----------------------------------------------------------------------- + * Paths + */ + +struct cork_path; + +/* path can be relative or absolute */ +CORK_API struct cork_path * +cork_path_new(const char *path); + +CORK_API struct cork_path * +cork_path_clone(const struct cork_path *other); + +CORK_API void +cork_path_free(struct cork_path *path); + + +CORK_API void +cork_path_set(struct cork_path *path, const char *content); + +CORK_API const char * +cork_path_get(const struct cork_path *path); + + +CORK_API int +cork_path_set_cwd(struct cork_path *path); + +CORK_API struct cork_path * +cork_path_cwd(void); + + +CORK_API int +cork_path_set_absolute(struct cork_path *path); + +CORK_API struct cork_path * +cork_path_absolute(const struct cork_path *other); + + +CORK_API void +cork_path_append(struct cork_path *path, const char *more); + +CORK_API void +cork_path_append_path(struct cork_path *path, const struct cork_path *more); + +CORK_API struct cork_path * +cork_path_join(const struct cork_path *other, const char *more); + +CORK_API struct cork_path * +cork_path_join_path(const struct cork_path *other, + const struct cork_path *more); + + +CORK_API void +cork_path_set_basename(struct cork_path *path); + +CORK_API struct cork_path * +cork_path_basename(const struct cork_path *other); + + +CORK_API void +cork_path_set_dirname(struct cork_path *path); + +CORK_API struct cork_path * +cork_path_dirname(const struct cork_path *other); + + +/*----------------------------------------------------------------------- + * Lists of paths + */ + +struct cork_path_list; + +CORK_API struct cork_path_list * +cork_path_list_new_empty(void); + +/* list must be a colon-separated list of paths */ +CORK_API struct cork_path_list * +cork_path_list_new(const char *list); + +CORK_API void +cork_path_list_free(struct cork_path_list *list); + +CORK_API const char * +cork_path_list_to_string(const struct cork_path_list *list); + +/* Takes control of path. path must not already be in the list. */ +CORK_API void +cork_path_list_add(struct cork_path_list *list, struct cork_path *path); + +CORK_API size_t +cork_path_list_size(const struct cork_path_list *list); + +/* The list still owns path; you must not free it or modify it. */ +CORK_API const struct cork_path * +cork_path_list_get(const struct cork_path_list *list, size_t index); + + +/*----------------------------------------------------------------------- + * Files + */ + +#define CORK_FILE_RECURSIVE 0x0001 +#define CORK_FILE_PERMISSIVE 0x0002 + +typedef unsigned int cork_file_mode; + +enum cork_file_type { + CORK_FILE_MISSING = 0, + CORK_FILE_REGULAR = 1, + CORK_FILE_DIRECTORY = 2, + CORK_FILE_SYMLINK = 3, + CORK_FILE_UNKNOWN = 4 +}; + +struct cork_file; + +CORK_API struct cork_file * +cork_file_new(const char *path); + +/* Takes control of path */ +CORK_API struct cork_file * +cork_file_new_from_path(struct cork_path *path); + +CORK_API void +cork_file_free(struct cork_file *file); + +/* File owns the result; you should not free it */ +CORK_API const struct cork_path * +cork_file_path(struct cork_file *file); + +CORK_API int +cork_file_exists(struct cork_file *file, bool *exists); + +CORK_API int +cork_file_type(struct cork_file *file, enum cork_file_type *type); + + +typedef int +(*cork_file_directory_iterator)(struct cork_file *child, const char *rel_name, + void *user_data); + +CORK_API int +cork_file_iterate_directory(struct cork_file *file, + cork_file_directory_iterator iterator, + void *user_data); + +/* If flags includes CORK_FILE_RECURSIVE, this creates parent directories, + * if needed. If flags doesn't include CORK_FILE_PERMISSIVE, then it's an error + * if the directory already exists. */ +CORK_API int +cork_file_mkdir(struct cork_file *file, cork_file_mode mode, + unsigned int flags); + +/* Removes a file or directory. If file is a directory, and flags contains + * CORK_FILE_RECURSIVE, then all of the directory's contents are removed, too. + * Otherwise, the directory must already be empty. */ +CORK_API int +cork_file_remove(struct cork_file *file, unsigned int flags); + + +CORK_API struct cork_file * +cork_path_list_find_file(const struct cork_path_list *list, + const char *rel_path); + + +/*----------------------------------------------------------------------- + * Lists of files + */ + +struct cork_file_list; + +CORK_API struct cork_file_list * +cork_file_list_new_empty(void); + +CORK_API struct cork_file_list * +cork_file_list_new(struct cork_path_list *path_list); + +CORK_API void +cork_file_list_free(struct cork_file_list *list); + +/* Takes control of file. file must not already be in the list. */ +CORK_API void +cork_file_list_add(struct cork_file_list *list, struct cork_file *file); + +CORK_API size_t +cork_file_list_size(struct cork_file_list *list); + +/* The list still owns file; you must not free it. Editing the file updates the + * entry in the list. */ +CORK_API struct cork_file * +cork_file_list_get(struct cork_file_list *list, size_t index); + + +CORK_API struct cork_file_list * +cork_path_list_find_files(const struct cork_path_list *list, + const char *rel_path); + + +/*----------------------------------------------------------------------- + * Walking a directory tree + */ + +#define CORK_SKIP_DIRECTORY 1 + +struct cork_dir_walker { + int + (*enter_directory)(struct cork_dir_walker *walker, const char *full_path, + const char *rel_path, const char *base_name); + + int + (*file)(struct cork_dir_walker *walker, const char *full_path, + const char *rel_path, const char *base_name); + + int + (*leave_directory)(struct cork_dir_walker *walker, const char *full_path, + const char *rel_path, const char *base_name); +}; + +#define cork_dir_walker_enter_directory(w, fp, rp, bn) \ + ((w)->enter_directory((w), (fp), (rp), (bn))) + +#define cork_dir_walker_file(w, fp, rp, bn) \ + ((w)->file((w), (fp), (rp), (bn))) + +#define cork_dir_walker_leave_directory(w, fp, rp, bn) \ + ((w)->leave_directory((w), (fp), (rp), (bn))) + + +CORK_API int +cork_walk_directory(const char *path, struct cork_dir_walker *walker); + + +/*----------------------------------------------------------------------- + * Standard paths and path lists + */ + +CORK_API struct cork_path * +cork_path_home(void); + + +CORK_API struct cork_path_list * +cork_path_config_paths(void); + +CORK_API struct cork_path_list * +cork_path_data_paths(void); + +CORK_API struct cork_path * +cork_path_user_cache_path(void); + +CORK_API struct cork_path * +cork_path_user_runtime_path(void); + + +#endif /* LIBCORK_CORE_FILES_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/os/process.h b/shadowsocksr-libev/src/libcork/include/libcork/os/process.h new file mode 100644 index 000000000..5d7813dc7 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/os/process.h @@ -0,0 +1,28 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_CORE_PROCESS_H +#define LIBCORK_CORE_PROCESS_H + +#include + + +typedef void +(*cork_cleanup_function)(void); + +CORK_API void +cork_cleanup_at_exit_named(const char *name, int priority, + cork_cleanup_function function); + +#define cork_cleanup_at_exit(priority, function) \ + cork_cleanup_at_exit_named(#function, priority, function) + + +#endif /* LIBCORK_CORE_PROCESS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/os/subprocess.h b/shadowsocksr-libev/src/libcork/include/libcork/os/subprocess.h new file mode 100644 index 000000000..31c1eb51c --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/os/subprocess.h @@ -0,0 +1,197 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_OS_SUBPROCESS_H +#define LIBCORK_OS_SUBPROCESS_H + +#include + +#include +#include +#include +#include +#include + + +/*----------------------------------------------------------------------- + * Environments + */ + +struct cork_env; + +CORK_API struct cork_env * +cork_env_new(void); + +CORK_API struct cork_env * +cork_env_clone_current(void); + +CORK_API void +cork_env_free(struct cork_env *env); + + +CORK_API void +cork_env_replace_current(struct cork_env *env); + + +/* For all of the following, if env is NULL, these functions access or update + * the actual environment of the current process. Otherwise, they act on the + * given environment instance. */ + +CORK_API const char * +cork_env_get(struct cork_env *env, const char *name); + +CORK_API void +cork_env_add(struct cork_env *env, const char *name, const char *value); + +CORK_API void +cork_env_add_printf(struct cork_env *env, const char *name, + const char *format, ...) + CORK_ATTR_PRINTF(3,4); + +CORK_API void +cork_env_add_vprintf(struct cork_env *env, const char *name, + const char *format, va_list args) + CORK_ATTR_PRINTF(3,0); + +CORK_API void +cork_env_remove(struct cork_env *env, const char *name); + + +/*----------------------------------------------------------------------- + * Executing another process + */ + +struct cork_exec; + +CORK_API struct cork_exec * +cork_exec_new(const char *program); + +CORK_ATTR_SENTINEL +CORK_API struct cork_exec * +cork_exec_new_with_params(const char *program, ...); + +CORK_API struct cork_exec * +cork_exec_new_with_param_array(const char *program, char * const *params); + +CORK_API void +cork_exec_free(struct cork_exec *exec); + +CORK_API const char * +cork_exec_description(struct cork_exec *exec); + +CORK_API const char * +cork_exec_program(struct cork_exec *exec); + +CORK_API size_t +cork_exec_param_count(struct cork_exec *exec); + +CORK_API const char * +cork_exec_param(struct cork_exec *exec, size_t index); + +CORK_API void +cork_exec_add_param(struct cork_exec *exec, const char *param); + +/* Can return NULL */ +CORK_API struct cork_env * +cork_exec_env(struct cork_exec *exec); + +/* Takes control of env */ +CORK_API void +cork_exec_set_env(struct cork_exec *exec, struct cork_env *env); + +/* Can return NULL */ +CORK_API const char * +cork_exec_cwd(struct cork_exec *exec); + +CORK_API void +cork_exec_set_cwd(struct cork_exec *exec, const char *directory); + +CORK_API int +cork_exec_run(struct cork_exec *exec); + + +/*----------------------------------------------------------------------- + * Subprocesses + */ + +struct cork_subprocess; + +/* If env is NULL, we use the environment variables of the calling process. */ + +/* Takes control of body */ +CORK_API struct cork_subprocess * +cork_subprocess_new(void *user_data, cork_free_f free_user_data, + cork_run_f run, + struct cork_stream_consumer *stdout_consumer, + struct cork_stream_consumer *stderr_consumer, + int *exit_code); + +/* Takes control of exec */ +CORK_API struct cork_subprocess * +cork_subprocess_new_exec(struct cork_exec *exec, + struct cork_stream_consumer *stdout_consumer, + struct cork_stream_consumer *stderr_consumer, + int *exit_code); + +CORK_API void +cork_subprocess_free(struct cork_subprocess *sub); + +CORK_API struct cork_stream_consumer * +cork_subprocess_stdin(struct cork_subprocess *sub); + +CORK_API int +cork_subprocess_start(struct cork_subprocess *sub); + +CORK_API bool +cork_subprocess_is_finished(struct cork_subprocess *sub); + +CORK_API int +cork_subprocess_abort(struct cork_subprocess *sub); + +CORK_API bool +cork_subprocess_drain(struct cork_subprocess *sub); + +CORK_API int +cork_subprocess_wait(struct cork_subprocess *sub); + + +/*----------------------------------------------------------------------- + * Groups of subprocesses + */ + +struct cork_subprocess_group; + +CORK_API struct cork_subprocess_group * +cork_subprocess_group_new(void); + +CORK_API void +cork_subprocess_group_free(struct cork_subprocess_group *group); + +/* Takes control of sub */ +CORK_API void +cork_subprocess_group_add(struct cork_subprocess_group *group, + struct cork_subprocess *sub); + +CORK_API int +cork_subprocess_group_start(struct cork_subprocess_group *group); + +CORK_API bool +cork_subprocess_group_is_finished(struct cork_subprocess_group *group); + +CORK_API int +cork_subprocess_group_abort(struct cork_subprocess_group *group); + +CORK_API bool +cork_subprocess_group_drain(struct cork_subprocess_group *group); + +CORK_API int +cork_subprocess_group_wait(struct cork_subprocess_group *group); + + +#endif /* LIBCORK_OS_SUBPROCESS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/threads.h b/shadowsocksr-libev/src/libcork/include/libcork/threads.h new file mode 100644 index 000000000..c00841917 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/threads.h @@ -0,0 +1,19 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_THREADS_H +#define LIBCORK_THREADS_H + +/*** include all of the parts ***/ + +#include +#include + +#endif /* LIBCORK_THREADS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/threads/atomics.h b/shadowsocksr-libev/src/libcork/include/libcork/threads/atomics.h new file mode 100644 index 000000000..d1f139b4c --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/threads/atomics.h @@ -0,0 +1,50 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_THREADS_ATOMICS_H +#define LIBCORK_THREADS_ATOMICS_H + +#include +#include + +/*----------------------------------------------------------------------- + * GCC intrinsics + */ + +/* Ideally we can use GCC's intrinsics to define everything */ +#if defined(CORK_CONFIG_HAVE_GCC_ATOMICS) + +#define cork_int_atomic_add __sync_add_and_fetch +#define cork_uint_atomic_add __sync_add_and_fetch +#define cork_size_atomic_add __sync_add_and_fetch +#define cork_int_atomic_pre_add __sync_fetch_and_add +#define cork_uint_atomic_pre_add __sync_fetch_and_add +#define cork_size_atomic_pre_add __sync_fetch_and_add +#define cork_int_atomic_sub __sync_sub_and_fetch +#define cork_uint_atomic_sub __sync_sub_and_fetch +#define cork_size_atomic_sub __sync_sub_and_fetch +#define cork_int_atomic_pre_sub __sync_fetch_and_sub +#define cork_uint_atomic_pre_sub __sync_fetch_and_sub +#define cork_size_atomic_pre_sub __sync_fetch_and_sub +#define cork_int_cas __sync_val_compare_and_swap +#define cork_uint_cas __sync_val_compare_and_swap +#define cork_size_cas __sync_val_compare_and_swap +#define cork_ptr_cas __sync_val_compare_and_swap + + +/*----------------------------------------------------------------------- + * End of atomic implementations + */ +#else +#error "No atomics implementation!" +#endif + + +#endif /* LIBCORK_THREADS_ATOMICS_H */ diff --git a/shadowsocksr-libev/src/libcork/include/libcork/threads/basics.h b/shadowsocksr-libev/src/libcork/include/libcork/threads/basics.h new file mode 100644 index 000000000..6208569a3 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/include/libcork/threads/basics.h @@ -0,0 +1,221 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifndef LIBCORK_THREADS_BASICS_H +#define LIBCORK_THREADS_BASICS_H + +#include + +#include +#include +#include +#include + + +/*----------------------------------------------------------------------- + * Thread IDs + */ + +typedef unsigned int cork_thread_id; + +#define CORK_THREAD_NONE ((cork_thread_id) 0) + +/* Returns a valid ID for any thread — even the main thread and threads that + * aren't created by libcork. */ +CORK_API cork_thread_id +cork_current_thread_get_id(void); + + +/*----------------------------------------------------------------------- + * Threads + */ + +struct cork_thread; + +/* Returns NULL for the main thread, and for any thread not created via + * cork_thread_new/cork_thread_start. */ +CORK_API struct cork_thread * +cork_current_thread_get(void); + +CORK_API struct cork_thread * +cork_thread_new(const char *name, + void *user_data, cork_free_f free_user_data, + cork_run_f run); + +/* Thread must not have been started yet. */ +CORK_API void +cork_thread_free(struct cork_thread *thread); + +CORK_API const char * +cork_thread_get_name(struct cork_thread *thread); + +CORK_API cork_thread_id +cork_thread_get_id(struct cork_thread *thread); + +/* Can only be called once per thread. Thread will automatically be freed when + * its done. */ +CORK_API int +cork_thread_start(struct cork_thread *thread); + +/* Can only be called once per thread; must be called after cork_thread_start. */ +CORK_API int +cork_thread_join(struct cork_thread *thread); + + +/*----------------------------------------------------------------------- + * Executing something once + */ + +#if CORK_CONFIG_HAVE_GCC_ASM && (CORK_CONFIG_ARCH_X86 || CORK_CONFIG_ARCH_X64) +#define cork_pause() \ + do { \ + __asm__ __volatile__ ("pause"); \ + } while (0) +#else +#define cork_pause() do { /* do nothing */ } while (0) +#endif + + +#define cork_once_barrier(name) \ + static struct { \ + volatile int barrier; \ + cork_thread_id initializing_thread; \ + } name##__once; + +#define cork_once(name, call) \ + do { \ + if (CORK_LIKELY(name##__once.barrier == 2)) { \ + /* already initialized */ \ + } else { \ + /* Try to claim the ability to perform the initialization */ \ + int prior_state = cork_int_cas(&name##__once.barrier, 0, 1); \ + if (CORK_LIKELY(prior_state == 0)) { \ + CORK_ATTR_UNUSED int result; \ + /* we get to initialize */ \ + call; \ + result = cork_int_cas(&name##__once.barrier, 1, 2); \ + assert(result == 1); \ + } else { \ + /* someone else is initializing, spin/wait until done */ \ + while (name##__once.barrier != 2) { cork_pause(); } \ + } \ + } \ + } while (0) + +#define cork_once_recursive(name, call) \ + do { \ + if (CORK_LIKELY(name##__once.barrier == 2)) { \ + /* already initialized */ \ + } else { \ + /* Try to claim the ability to perform the initialization */ \ + int prior_state = cork_int_cas(&name##__once.barrier, 0, 1); \ + if (CORK_LIKELY(prior_state == 0)) { \ + CORK_ATTR_UNUSED int result; \ + /* we get to initialize */ \ + name##__once.initializing_thread = \ + cork_current_thread_get_id(); \ + call; \ + result = cork_int_cas(&name##__once.barrier, 1, 2); \ + assert(result == 1); \ + } else { \ + /* someone else is initializing, is it us? */ \ + if (name##__once.initializing_thread == \ + cork_current_thread_get_id()) { \ + /* yep, fall through to let our recursion continue */ \ + } else { \ + /* nope; wait for the initialization to finish */ \ + while (name##__once.barrier != 2) { cork_pause(); } \ + } \ + } \ + } \ + } while (0) + + +/*----------------------------------------------------------------------- + * Thread-local storage + */ + +/* Prefer, in order: + * + * 1) __thread storage class + * 2) pthread_key_t + */ + +#if CORK_CONFIG_HAVE_THREAD_STORAGE_CLASS +#define cork_tls(TYPE, NAME) \ +static __thread TYPE NAME##__tls; \ +\ +static TYPE * \ +NAME##_get(void) \ +{ \ + return &NAME##__tls; \ +} + +#define cork_tls_with_alloc(TYPE, NAME, allocate, deallocate) \ + cork_tls(TYPE, NAME) + +#elif CORK_HAVE_PTHREADS +#include +#include + +#include + +#define cork_tls_with_alloc(TYPE, NAME, allocate, deallocate) \ +static pthread_key_t NAME##__tls_key; \ +cork_once_barrier(NAME##__tls_barrier); \ +\ +static void \ +NAME##__tls_destroy(void *self) \ +{ \ + deallocate(self); \ +} \ +\ +static void \ +NAME##__create_key(void) \ +{ \ + CORK_ATTR_UNUSED int rc; \ + rc = pthread_key_create(&NAME##__tls_key, &NAME##__tls_destroy); \ + assert(rc == 0); \ +} \ +\ +static TYPE * \ +NAME##_get(void) \ +{ \ + TYPE *self; \ + cork_once(NAME##__tls_barrier, NAME##__create_key()); \ + self = pthread_getspecific(NAME##__tls_key); \ + if (CORK_UNLIKELY(self == NULL)) { \ + self = allocate(); \ + pthread_setspecific(NAME##__tls_key, self); \ + } \ + return self; \ +} + +#define cork_tls(TYPE, NAME) \ +\ +static TYPE * \ +NAME##__tls_allocate(void) \ +{ \ + return cork_calloc(1, sizeof(TYPE)); \ +} \ +\ +static void \ +NAME##__tls_deallocate(void *vself) \ +{ \ + cork_cfree(vself, 1, sizeof(TYPE)); \ +} \ +\ +cork_tls_with_alloc(TYPE, NAME, NAME##__tls_allocate, NAME##__tls_deallocate); + +#else +#error "No thread-local storage implementation!" +#endif + + +#endif /* LIBCORK_THREADS_BASICS_H */ diff --git a/shadowsocksr-libev/src/libcork/posix/directory-walker.c b/shadowsocksr-libev/src/libcork/posix/directory-walker.c new file mode 100644 index 000000000..c5a25c5d4 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/posix/directory-walker.c @@ -0,0 +1,122 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license + * details. + * ---------------------------------------------------------------------- + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "libcork/core/attributes.h" +#include "libcork/core/error.h" +#include "libcork/core/types.h" +#include "libcork/ds/buffer.h" +#include "libcork/helpers/errors.h" +#include "libcork/helpers/posix.h" +#include "libcork/os/files.h" + + +static int +cork_walk_one_directory(struct cork_dir_walker *w, struct cork_buffer *path, + size_t root_path_size) +{ + DIR *dir = NULL; + struct dirent *entry; + size_t dir_path_size; + + rip_check_posix(dir = opendir(path->buf)); + + cork_buffer_append(path, "/", 1); + dir_path_size = path->size; + errno = 0; + while ((entry = readdir(dir)) != NULL) { + struct stat info; + + /* Skip the "." and ".." entries */ + if (strcmp(entry->d_name, ".") == 0 || + strcmp(entry->d_name, "..") == 0) { + continue; + } + + /* Stat the directory entry */ + cork_buffer_append_string(path, entry->d_name); + ei_check_posix(stat(path->buf, &info)); + + /* If the entry is a subdirectory, recurse into it. */ + if (S_ISDIR(info.st_mode)) { + int rc = cork_dir_walker_enter_directory + (w, path->buf, path->buf + root_path_size, + path->buf + dir_path_size); + if (rc != CORK_SKIP_DIRECTORY) { + ei_check(cork_walk_one_directory(w, path, root_path_size)); + ei_check(cork_dir_walker_leave_directory + (w, path->buf, path->buf + root_path_size, + path->buf + dir_path_size)); + } + } else if (S_ISREG(info.st_mode)) { + ei_check(cork_dir_walker_file + (w, path->buf, path->buf + root_path_size, + path->buf + dir_path_size)); + } + + /* Remove this entry name from the path buffer. */ + cork_buffer_truncate(path, dir_path_size); + + /* We have to reset errno to 0 because of the ambiguous way + * readdir uses a return value of NULL. Other functions may + * return normally yet set errno to a non-zero value. dlopen + * on Mac OS X is an ogreish example. Since an error readdir + * is indicated by returning NULL and setting errno to indicate + * the error, then we need to reset it to zero before each call. + * We shall assume, perhaps to our great misery, that functions + * within this loop do proper error checking and act accordingly. + */ + errno = 0; + } + + /* Check errno immediately after the while loop terminates */ + if (CORK_UNLIKELY(errno != 0)) { + cork_system_error_set(); + goto error; + } + + /* Remove the trailing '/' from the path buffer. */ + cork_buffer_truncate(path, dir_path_size - 1); + rii_check_posix(closedir(dir)); + return 0; + +error: + if (dir != NULL) { + rii_check_posix(closedir(dir)); + } + return -1; +} + +int +cork_walk_directory(const char *path, struct cork_dir_walker *w) +{ + int rc; + char *p; + struct cork_buffer buf = CORK_BUFFER_INIT(); + + /* Seed the buffer with the directory's path, ensuring that there's no + * trailing '/' */ + cork_buffer_append_string(&buf, path); + p = buf.buf; + while (p[buf.size-1] == '/') { + buf.size--; + p[buf.size] = '\0'; + } + rc = cork_walk_one_directory(w, &buf, buf.size + 1); + cork_buffer_done(&buf); + return rc; +} diff --git a/shadowsocksr-libev/src/libcork/posix/env.c b/shadowsocksr-libev/src/libcork/posix/env.c new file mode 100644 index 000000000..e5f5fd79a --- /dev/null +++ b/shadowsocksr-libev/src/libcork/posix/env.c @@ -0,0 +1,271 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include +#include + +#include "libcork/core.h" +#include "libcork/ds.h" +#include "libcork/os/subprocess.h" +#include "libcork/helpers/errors.h" + +#if defined(__APPLE__) +/* Apple doesn't provide access to the "environ" variable from a shared library. + * There's a workaround function to grab the environ pointer described at [1]. + * + * [1] http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man7/environ.7.html + */ +#include +#define environ (*_NSGetEnviron()) + +#elif !defined(__MINGW32__) +/* On all other POSIX platforms, we assume that environ is available in shared + * libraries. */ +extern char **environ; + +#endif + + +#ifdef __MINGW32__ + +int setenv(const char *name, const char *value, int replace) +{ + int out; + size_t namelen, valuelen; + char *envstr; + + if (!name || !value) return -1; + if (!replace) { + char *oldval = NULL; + oldval = getenv(name); + if (oldval) return 0; + } + + namelen = strlen(name); + valuelen = strlen(value); + envstr = malloc((namelen + valuelen + 2)); + if (!envstr) return -1; + + memcpy(envstr, name, namelen); + envstr[namelen] = '='; + memcpy(envstr + namelen + 1, value, valuelen); + envstr[namelen + valuelen + 1] = 0; + + out = putenv(envstr); + /* putenv(3) makes the argument string part of the environment, + * and changing that string modifies the environment --- which + * means we do not own that storage anymore. Do not free + * envstr. + */ + + return out; +} + +int unsetenv(const char *env) +{ + char *name; + int ret; + + name = malloc(strlen(env)+2); + strcat(strcpy(name, env), "="); + ret = putenv(name); + free(name); + + return ret; +} + +int clearenv(void) +{ + char **env = environ; + if (!env) + return 0; + while (*env) { + free(*env); + env++; + } + free(env); + environ = NULL; + return 0; +} + +#endif + + +struct cork_env_var { + const char *name; + const char *value; +}; + +static struct cork_env_var * +cork_env_var_new(const char *name, const char *value) +{ + struct cork_env_var *var = cork_new(struct cork_env_var); + var->name = cork_strdup(name); + var->value = cork_strdup(value); + return var; +} + +static void +cork_env_var_free(void *vvar) +{ + struct cork_env_var *var = vvar; + cork_strfree(var->name); + cork_strfree(var->value); + cork_delete(struct cork_env_var, var); +} + + +struct cork_env { + struct cork_hash_table *variables; + struct cork_buffer buffer; +}; + +struct cork_env * +cork_env_new(void) +{ + struct cork_env *env = cork_new(struct cork_env); + env->variables = cork_string_hash_table_new(0, 0); + cork_hash_table_set_free_value(env->variables, cork_env_var_free); + cork_buffer_init(&env->buffer); + return env; +} + +static void +cork_env_add_internal(struct cork_env *env, const char *name, const char *value) +{ + if (env == NULL) { + setenv(name, value, true); + } else { + struct cork_env_var *var = cork_env_var_new(name, value); + void *old_var; + + cork_hash_table_put + (env->variables, (void *) var->name, var, NULL, NULL, &old_var); + + if (old_var != NULL) { + cork_env_var_free(old_var); + } + } +} + +struct cork_env * +cork_env_clone_current(void) +{ + char **curr; + struct cork_env *env = cork_env_new(); + + for (curr = environ; *curr != NULL; curr++) { + const char *entry = *curr; + const char *equal; + + equal = strchr(entry, '='); + if (CORK_UNLIKELY(equal == NULL)) { + /* This environment entry is malformed; skip it. */ + continue; + } + + /* Make a copy of the name so that it's NUL-terminated rather than + * equal-terminated. */ + cork_buffer_set(&env->buffer, entry, equal - entry); + cork_env_add_internal(env, env->buffer.buf, equal + 1); + } + + return env; +} + + +void +cork_env_free(struct cork_env *env) +{ + cork_hash_table_free(env->variables); + cork_buffer_done(&env->buffer); + cork_delete(struct cork_env, env); +} + +const char * +cork_env_get(struct cork_env *env, const char *name) +{ + if (env == NULL) { + return getenv(name); + } else { + struct cork_env_var *var = + cork_hash_table_get(env->variables, (void *) name); + return (var == NULL)? NULL: var->value; + } +} + +void +cork_env_add(struct cork_env *env, const char *name, const char *value) +{ + cork_env_add_internal(env, name, value); +} + +void +cork_env_add_vprintf(struct cork_env *env, const char *name, + const char *format, va_list args) +{ + cork_buffer_vprintf(&env->buffer, format, args); + cork_env_add_internal(env, name, env->buffer.buf); +} + +void +cork_env_add_printf(struct cork_env *env, const char *name, + const char *format, ...) +{ + va_list args; + va_start(args, format); + cork_env_add_vprintf(env, name, format, args); + va_end(args); +} + +void +cork_env_remove(struct cork_env *env, const char *name) +{ + if (env == NULL) { + unsetenv(name); + } else { + void *old_var; + cork_hash_table_delete(env->variables, (void *) name, NULL, &old_var); + if (old_var != NULL) { + cork_env_var_free(old_var); + } + } +} + +static enum cork_hash_table_map_result +cork_env_set_vars(void *user_data, struct cork_hash_table_entry *entry) +{ + struct cork_env_var *var = entry->value; + setenv(var->name, var->value, false); + return CORK_HASH_TABLE_MAP_CONTINUE; +} + +#if ((defined(__APPLE__) || (defined(BSD) && (BSD >= 199103))) && !defined(__GNU__)) || defined (__CYGWIN__) +/* A handful of platforms [1] don't provide clearenv(), so we must implement our + * own version that clears the environ array directly. + * + * [1] http://www.gnu.org/software/gnulib/manual/html_node/clearenv.html + */ +static void +clearenv(void) +{ + *environ = NULL; +} + +#else +/* Otherwise assume that we have clearenv available. */ +#endif + +void +cork_env_replace_current(struct cork_env *env) +{ + clearenv(); + cork_hash_table_map(env->variables, NULL, cork_env_set_vars); +} diff --git a/shadowsocksr-libev/src/libcork/posix/exec.c b/shadowsocksr-libev/src/libcork/posix/exec.c new file mode 100644 index 000000000..062102839 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/posix/exec.c @@ -0,0 +1,189 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include + +#include "libcork/core.h" +#include "libcork/ds.h" +#include "libcork/os/subprocess.h" +#include "libcork/helpers/errors.h" + +#define ri_check_posix(call) \ + do { \ + while (true) { \ + if ((call) == -1) { \ + if (errno == EINTR) { \ + continue; \ + } else { \ + cork_system_error_set(); \ + CORK_PRINT_ERROR(); \ + return -1; \ + } \ + } else { \ + break; \ + } \ + } \ + } while (0) + + +struct cork_exec { + const char *program; + struct cork_string_array params; + struct cork_env *env; + const char *cwd; + struct cork_buffer description; +}; + +struct cork_exec * +cork_exec_new(const char *program) +{ + struct cork_exec *exec = cork_new(struct cork_exec); + exec->program = cork_strdup(program); + cork_string_array_init(&exec->params); + exec->env = NULL; + exec->cwd = NULL; + cork_buffer_init(&exec->description); + cork_buffer_set_string(&exec->description, program); + return exec; +} + +struct cork_exec * +cork_exec_new_with_params(const char *program, ...) +{ + struct cork_exec *exec; + va_list args; + const char *param; + + exec = cork_exec_new(program); + cork_exec_add_param(exec, program); + va_start(args, program); + while ((param = va_arg(args, const char *)) != NULL) { + cork_exec_add_param(exec, param); + } + return exec; +} + +struct cork_exec * +cork_exec_new_with_param_array(const char *program, char * const *params) +{ + char * const *curr; + struct cork_exec *exec = cork_exec_new(program); + for (curr = params; *curr != NULL; curr++) { + cork_exec_add_param(exec, *curr); + } + return exec; +} + +void +cork_exec_free(struct cork_exec *exec) +{ + cork_strfree(exec->program); + cork_array_done(&exec->params); + if (exec->env != NULL) { + cork_env_free(exec->env); + } + if (exec->cwd != NULL) { + cork_strfree(exec->cwd); + } + cork_buffer_done(&exec->description); + cork_delete(struct cork_exec, exec); +} + +const char * +cork_exec_description(struct cork_exec *exec) +{ + return exec->description.buf; +} + +const char * +cork_exec_program(struct cork_exec *exec) +{ + return exec->program; +} + +size_t +cork_exec_param_count(struct cork_exec *exec) +{ + return cork_array_size(&exec->params); +} + +const char * +cork_exec_param(struct cork_exec *exec, size_t index) +{ + return cork_array_at(&exec->params, index); +} + +void +cork_exec_add_param(struct cork_exec *exec, const char *param) +{ + /* Don't add the first parameter to the description; that's a copy of the + * program name, which we've already added. */ + if (!cork_array_is_empty(&exec->params)) { + cork_buffer_append(&exec->description, " ", 1); + cork_buffer_append_string(&exec->description, param); + } + cork_array_append(&exec->params, cork_strdup(param)); +} + +struct cork_env * +cork_exec_env(struct cork_exec *exec) +{ + return exec->env; +} + +void +cork_exec_set_env(struct cork_exec *exec, struct cork_env *env) +{ + if (exec->env != NULL) { + cork_env_free(exec->env); + } + exec->env = env; +} + +const char * +cork_exec_cwd(struct cork_exec *exec) +{ + return exec->cwd; +} + +void +cork_exec_set_cwd(struct cork_exec *exec, const char *directory) +{ + if (exec->cwd != NULL) { + cork_strfree(exec->cwd); + } + exec->cwd = cork_strdup(directory); +} + +int +cork_exec_run(struct cork_exec *exec) +{ + const char **params; + + /* Make sure the parameter array is NULL-terminated. */ + cork_array_append(&exec->params, NULL); + params = cork_array_elements(&exec->params); + + /* Fill in the requested environment */ + if (exec->env != NULL) { + cork_env_replace_current(exec->env); + } + + /* Change the working directory, if requested */ + if (exec->cwd != NULL) { + ri_check_posix(chdir(exec->cwd)); + } + + /* Execute the new program */ + ri_check_posix(execvp(exec->program, (char * const *) params)); + + /* This is unreachable */ + return 0; +} diff --git a/shadowsocksr-libev/src/libcork/posix/files.c b/shadowsocksr-libev/src/libcork/posix/files.c new file mode 100644 index 000000000..b33a186d2 --- /dev/null +++ b/shadowsocksr-libev/src/libcork/posix/files.c @@ -0,0 +1,891 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#ifdef __GNU__ +#define _GNU_SOURCE +#endif +#include +#include +#include +#include +#include +#include +#include +#include + +#include "libcork/core/attributes.h" +#include "libcork/core/error.h" +#include "libcork/core/types.h" +#include "libcork/ds/array.h" +#include "libcork/ds/buffer.h" +#include "libcork/helpers/errors.h" +#include "libcork/helpers/posix.h" +#include "libcork/os/files.h" +#include "libcork/os/subprocess.h" + + +#if !defined(CORK_DEBUG_FILES) +#define CORK_DEBUG_FILES 0 +#endif + +#if CORK_DEBUG_FILES +#include +#define DEBUG(...) fprintf(stderr, __VA_ARGS__) +#else +#define DEBUG(...) /* no debug messages */ +#endif + + +/*----------------------------------------------------------------------- + * Paths + */ + +struct cork_path { + struct cork_buffer given; +}; + +static struct cork_path * +cork_path_new_internal(const char *str, size_t length) +{ + struct cork_path *path = cork_new(struct cork_path); + cork_buffer_init(&path->given); + if (length == 0) { + cork_buffer_ensure_size(&path->given, 16); + cork_buffer_set(&path->given, "", 0); + } else { + cork_buffer_set(&path->given, str, length); + } + return path; +} + +struct cork_path * +cork_path_new(const char *source) +{ + return cork_path_new_internal(source, source == NULL? 0: strlen(source)); +} + +struct cork_path * +cork_path_clone(const struct cork_path *other) +{ + return cork_path_new_internal(other->given.buf, other->given.size); +} + +void +cork_path_free(struct cork_path *path) +{ + cork_buffer_done(&path->given); + cork_delete(struct cork_path, path); +} + + +void +cork_path_set(struct cork_path *path, const char *content) +{ + if (content == NULL) { + cork_buffer_clear(&path->given); + } else { + cork_buffer_set_string(&path->given, content); + } +} + +const char * +cork_path_get(const struct cork_path *path) +{ + return path->given.buf; +} + +#define cork_path_get(path) ((const char *) (path)->given.buf) +#define cork_path_size(path) ((path)->given.size) +#define cork_path_truncate(path, size) \ + (cork_buffer_truncate(&(path)->given, (size))) + + +int +cork_path_set_cwd(struct cork_path *path) +{ +#ifdef __GNU__ + char *dirname = get_current_dir_name(); + rip_check_posix(dirname); + cork_buffer_set(&path->given, dirname, strlen(dirname)); + free(dirname); +#else + cork_buffer_ensure_size(&path->given, PATH_MAX); + rip_check_posix(getcwd(path->given.buf, PATH_MAX)); + path->given.size = strlen(path->given.buf); +#endif + return 0; +} + +struct cork_path * +cork_path_cwd(void) +{ + struct cork_path *path = cork_path_new(NULL); + ei_check(cork_path_set_cwd(path)); + return path; + +error: + cork_path_free(path); + return NULL; +} + + +int +cork_path_set_absolute(struct cork_path *path) +{ + struct cork_buffer buf; + + if (path->given.size > 0 && + cork_buffer_char(&path->given, 0) == '/') { + /* The path is already absolute. */ + return 0; + } + +#ifdef __GNU__ + char *dirname; + dirname = get_current_dir_name(); + ep_check_posix(dirname); + cork_buffer_init(&buf); + cork_buffer_set(&buf, dirname, strlen(dirname)); + free(dirname); +#else + cork_buffer_init(&buf); + cork_buffer_ensure_size(&buf, PATH_MAX); + ep_check_posix(getcwd(buf.buf, PATH_MAX)); + buf.size = strlen(buf.buf); +#endif + cork_buffer_append(&buf, "/", 1); + cork_buffer_append_copy(&buf, &path->given); + cork_buffer_done(&path->given); + path->given = buf; + return 0; + +error: + cork_buffer_done(&buf); + return -1; +} + +struct cork_path * +cork_path_absolute(const struct cork_path *other) +{ + struct cork_path *path = cork_path_clone(other); + ei_check(cork_path_set_absolute(path)); + return path; + +error: + cork_path_free(path); + return NULL; +} + + +void +cork_path_append(struct cork_path *path, const char *more) +{ + if (more == NULL || more[0] == '\0') { + return; + } + + if (more[0] == '/') { + /* If more starts with a "/", then it's absolute, and should replace + * the contents of the current path. */ + cork_buffer_set_string(&path->given, more); + } else { + /* Otherwise, more is relative, and should be appended to the current + * path. If the current given path doesn't end in a "/", then we need + * to add one to keep the path well-formed. */ + + if (path->given.size > 0 && + cork_buffer_char(&path->given, path->given.size - 1) != '/') { + cork_buffer_append(&path->given, "/", 1); + } + + cork_buffer_append_string(&path->given, more); + } +} + +struct cork_path * +cork_path_join(const struct cork_path *other, const char *more) +{ + struct cork_path *path = cork_path_clone(other); + cork_path_append(path, more); + return path; +} + +void +cork_path_append_path(struct cork_path *path, const struct cork_path *more) +{ + cork_path_append(path, more->given.buf); +} + +struct cork_path * +cork_path_join_path(const struct cork_path *other, const struct cork_path *more) +{ + struct cork_path *path = cork_path_clone(other); + cork_path_append_path(path, more); + return path; +} + + +void +cork_path_set_basename(struct cork_path *path) +{ + char *given = path->given.buf; + const char *last_slash = strrchr(given, '/'); + if (last_slash != NULL) { + size_t offset = last_slash - given; + size_t basename_length = path->given.size - offset - 1; + memmove(given, last_slash + 1, basename_length); + given[basename_length] = '\0'; + path->given.size = basename_length; + } +} + +struct cork_path * +cork_path_basename(const struct cork_path *other) +{ + struct cork_path *path = cork_path_clone(other); + cork_path_set_basename(path); + return path; +} + + +void +cork_path_set_dirname(struct cork_path *path) +{ + const char *given = path->given.buf; + const char *last_slash = strrchr(given, '/'); + if (last_slash == NULL) { + cork_buffer_clear(&path->given); + } else { + size_t offset = last_slash - given; + if (offset == 0) { + /* A special case for the immediate subdirectories of "/" */ + cork_buffer_truncate(&path->given, 1); + } else { + cork_buffer_truncate(&path->given, offset); + } + } +} + +struct cork_path * +cork_path_dirname(const struct cork_path *other) +{ + struct cork_path *path = cork_path_clone(other); + cork_path_set_dirname(path); + return path; +} + + +/*----------------------------------------------------------------------- + * Lists of paths + */ + +struct cork_path_list { + cork_array(struct cork_path *) array; + struct cork_buffer string; +}; + +struct cork_path_list * +cork_path_list_new_empty(void) +{ + struct cork_path_list *list = cork_new(struct cork_path_list); + cork_array_init(&list->array); + cork_buffer_init(&list->string); + return list; +} + +void +cork_path_list_free(struct cork_path_list *list) +{ + size_t i; + for (i = 0; i < cork_array_size(&list->array); i++) { + struct cork_path *path = cork_array_at(&list->array, i); + cork_path_free(path); + } + cork_array_done(&list->array); + cork_buffer_done(&list->string); + cork_delete(struct cork_path_list, list); +} + +const char * +cork_path_list_to_string(const struct cork_path_list *list) +{ + return list->string.buf; +} + +void +cork_path_list_add(struct cork_path_list *list, struct cork_path *path) +{ + cork_array_append(&list->array, path); + if (cork_array_size(&list->array) > 1) { + cork_buffer_append(&list->string, ":", 1); + } + cork_buffer_append_string(&list->string, cork_path_get(path)); +} + +size_t +cork_path_list_size(const struct cork_path_list *list) +{ + return cork_array_size(&list->array); +} + +const struct cork_path * +cork_path_list_get(const struct cork_path_list *list, size_t index) +{ + return cork_array_at(&list->array, index); +} + +static void +cork_path_list_append_string(struct cork_path_list *list, const char *str) +{ + struct cork_path *path; + const char *curr = str; + const char *next; + + while ((next = strchr(curr, ':')) != NULL) { + size_t size = next - curr; + path = cork_path_new_internal(curr, size); + cork_path_list_add(list, path); + curr = next + 1; + } + + path = cork_path_new(curr); + cork_path_list_add(list, path); +} + +struct cork_path_list * +cork_path_list_new(const char *str) +{ + struct cork_path_list *list = cork_path_list_new_empty(); + cork_path_list_append_string(list, str); + return list; +} + + +/*----------------------------------------------------------------------- + * Files + */ + +struct cork_file { + struct cork_path *path; + struct stat stat; + enum cork_file_type type; + bool has_stat; +}; + +static void +cork_file_init(struct cork_file *file, struct cork_path *path) +{ + file->path = path; + file->has_stat = false; +} + +struct cork_file * +cork_file_new(const char *path) +{ + return cork_file_new_from_path(cork_path_new(path)); +} + +struct cork_file * +cork_file_new_from_path(struct cork_path *path) +{ + struct cork_file *file = cork_new(struct cork_file); + cork_file_init(file, path); + return file; +} + +static void +cork_file_reset(struct cork_file *file) +{ + file->has_stat = false; +} + +static void +cork_file_done(struct cork_file *file) +{ + cork_path_free(file->path); +} + +void +cork_file_free(struct cork_file *file) +{ + cork_file_done(file); + cork_delete(struct cork_file, file); +} + +const struct cork_path * +cork_file_path(struct cork_file *file) +{ + return file->path; +} + +static int +cork_file_stat(struct cork_file *file) +{ + if (file->has_stat) { + return 0; + } else { + int rc; + rc = stat(cork_path_get(file->path), &file->stat); + + if (rc == -1) { + if (errno == ENOENT || errno == ENOTDIR) { + file->type = CORK_FILE_MISSING; + file->has_stat = true; + return 0; + } else { + cork_system_error_set(); + return -1; + } + } + + if (S_ISREG(file->stat.st_mode)) { + file->type = CORK_FILE_REGULAR; + } else if (S_ISDIR(file->stat.st_mode)) { + file->type = CORK_FILE_DIRECTORY; + } else if (S_ISLNK(file->stat.st_mode)) { + file->type = CORK_FILE_SYMLINK; + } else { + file->type = CORK_FILE_UNKNOWN; + } + + file->has_stat = true; + return 0; + } +} + +int +cork_file_exists(struct cork_file *file, bool *exists) +{ + rii_check(cork_file_stat(file)); + *exists = (file->type != CORK_FILE_MISSING); + return 0; +} + +int +cork_file_type(struct cork_file *file, enum cork_file_type *type) +{ + rii_check(cork_file_stat(file)); + *type = file->type; + return 0; +} + + +struct cork_file * +cork_path_list_find_file(const struct cork_path_list *list, + const char *rel_path) +{ + size_t i; + size_t count = cork_path_list_size(list); + struct cork_file *file; + + for (i = 0; i < count; i++) { + const struct cork_path *path = cork_path_list_get(list, i); + struct cork_path *joined = cork_path_join(path, rel_path); + bool exists; + file = cork_file_new_from_path(joined); + ei_check(cork_file_exists(file, &exists)); + if (exists) { + return file; + } else { + cork_file_free(file); + } + } + + cork_error_set_printf + (ENOENT, "%s not found in %s", + rel_path, cork_path_list_to_string(list)); + return NULL; + +error: + cork_file_free(file); + return NULL; +} + + +/*----------------------------------------------------------------------- + * Directories + */ + +int +cork_file_iterate_directory(struct cork_file *file, + cork_file_directory_iterator iterator, + void *user_data) +{ + DIR *dir = NULL; + struct dirent *entry; + size_t dir_path_size; + struct cork_path *child_path; + struct cork_file child_file; + + rip_check_posix(dir = opendir(cork_path_get(file->path))); + child_path = cork_path_clone(file->path); + cork_file_init(&child_file, child_path); + dir_path_size = cork_path_size(child_path); + + errno = 0; + while ((entry = readdir(dir)) != NULL) { + /* Skip the "." and ".." entries */ + if (strcmp(entry->d_name, ".") == 0 || + strcmp(entry->d_name, "..") == 0) { + continue; + } + + cork_path_append(child_path, entry->d_name); + ei_check(cork_file_stat(&child_file)); + + /* If the entry is a subdirectory, recurse into it. */ + ei_check(iterator(&child_file, entry->d_name, user_data)); + + /* Remove this entry name from the path buffer. */ + cork_path_truncate(child_path, dir_path_size); + cork_file_reset(&child_file); + + /* We have to reset errno to 0 because of the ambiguous way readdir uses + * a return value of NULL. Other functions may return normally yet set + * errno to a non-zero value. dlopen on Mac OS X is an ogreish example. + * Since an error readdir is indicated by returning NULL and setting + * errno to indicate the error, then we need to reset it to zero before + * each call. We shall assume, perhaps to our great misery, that + * functions within this loop do proper error checking and act + * accordingly. */ + errno = 0; + } + + /* Check errno immediately after the while loop terminates */ + if (CORK_UNLIKELY(errno != 0)) { + cork_system_error_set(); + goto error; + } + + cork_file_done(&child_file); + rii_check_posix(closedir(dir)); + return 0; + +error: + cork_file_done(&child_file); + rii_check_posix(closedir(dir)); + return -1; +} + +static int +cork_file_mkdir_one(struct cork_file *file, cork_file_mode mode, + unsigned int flags) +{ + DEBUG("mkdir %s\n", cork_path_get(file->path)); + + /* First check if the directory already exists. */ + rii_check(cork_file_stat(file)); + if (file->type == CORK_FILE_DIRECTORY) { + DEBUG(" Already exists!\n"); + if (!(flags & CORK_FILE_PERMISSIVE)) { + cork_system_error_set_explicit(EEXIST); + return -1; + } else { + return 0; + } + } else if (file->type != CORK_FILE_MISSING) { + DEBUG(" Exists and not a directory!\n"); + cork_system_error_set_explicit(EEXIST); + return -1; + } + + /* If the caller asked for a recursive mkdir, then make sure the parent + * directory exists. */ + if (flags & CORK_FILE_RECURSIVE) { + struct cork_path *parent = cork_path_dirname(file->path); + DEBUG(" Checking parent %s\n", cork_path_get(parent)); + if (parent->given.size == 0) { + /* There is no parent; we're either at the filesystem root (for an + * absolute path) or the current directory (for a relative one). + * Either way, we can assume it already exists. */ + cork_path_free(parent); + } else { + int rc; + struct cork_file parent_file; + cork_file_init(&parent_file, parent); + rc = cork_file_mkdir_one + (&parent_file, mode, flags | CORK_FILE_PERMISSIVE); + cork_file_done(&parent_file); + rii_check(rc); + } + } + + /* Create the directory already! */ + DEBUG(" Creating %s\n", cork_path_get(file->path)); + rii_check_posix(mkdir(cork_path_get(file->path), mode)); + return 0; +} + +int +cork_file_mkdir(struct cork_file *file, cork_file_mode mode, + unsigned int flags) +{ + return cork_file_mkdir_one(file, mode, flags); +} + +static int +cork_file_remove_iterator(struct cork_file *file, const char *rel_name, + void *user_data) +{ + unsigned int *flags = user_data; + return cork_file_remove(file, *flags); +} + +int +cork_file_remove(struct cork_file *file, unsigned int flags) +{ + DEBUG("rm %s\n", cork_path_get(file->path)); + rii_check(cork_file_stat(file)); + + if (file->type == CORK_FILE_MISSING) { + if (flags & CORK_FILE_PERMISSIVE) { + return 0; + } else { + cork_system_error_set_explicit(ENOENT); + return -1; + } + } else if (file->type == CORK_FILE_DIRECTORY) { + if (flags & CORK_FILE_RECURSIVE) { + /* The user asked that we delete the contents of the directory + * first. */ + rii_check(cork_file_iterate_directory + (file, cork_file_remove_iterator, &flags)); + } + + rii_check_posix(rmdir(cork_path_get(file->path))); + return 0; + } else { + rii_check(unlink(cork_path_get(file->path))); + return 0; + } +} + + +/*----------------------------------------------------------------------- + * Lists of files + */ + +struct cork_file_list { + cork_array(struct cork_file *) array; +}; + +struct cork_file_list * +cork_file_list_new_empty(void) +{ + struct cork_file_list *list = cork_new(struct cork_file_list); + cork_array_init(&list->array); + return list; +} + +void +cork_file_list_free(struct cork_file_list *list) +{ + size_t i; + for (i = 0; i < cork_array_size(&list->array); i++) { + struct cork_file *file = cork_array_at(&list->array, i); + cork_file_free(file); + } + cork_array_done(&list->array); + cork_delete(struct cork_file_list, list); +} + +void +cork_file_list_add(struct cork_file_list *list, struct cork_file *file) +{ + cork_array_append(&list->array, file); +} + +size_t +cork_file_list_size(struct cork_file_list *list) +{ + return cork_array_size(&list->array); +} + +struct cork_file * +cork_file_list_get(struct cork_file_list *list, size_t index) +{ + return cork_array_at(&list->array, index); +} + +struct cork_file_list * +cork_file_list_new(struct cork_path_list *path_list) +{ + struct cork_file_list *list = cork_file_list_new_empty(); + size_t count = cork_path_list_size(path_list); + size_t i; + + for (i = 0; i < count; i++) { + const struct cork_path *path = cork_path_list_get(path_list, i); + struct cork_file *file = cork_file_new(cork_path_get(path)); + cork_array_append(&list->array, file); + } + + return list; +} + + +struct cork_file_list * +cork_path_list_find_files(const struct cork_path_list *path_list, + const char *rel_path) +{ + size_t i; + size_t count = cork_path_list_size(path_list); + struct cork_file_list *list = cork_file_list_new_empty(); + struct cork_file *file; + + for (i = 0; i < count; i++) { + const struct cork_path *path = cork_path_list_get(path_list, i); + struct cork_path *joined = cork_path_join(path, rel_path); + bool exists; + file = cork_file_new_from_path(joined); + ei_check(cork_file_exists(file, &exists)); + if (exists) { + cork_file_list_add(list, file); + } else { + cork_file_free(file); + } + } + + return list; + +error: + cork_file_list_free(list); + cork_file_free(file); + return NULL; +} + + +/*----------------------------------------------------------------------- + * Standard paths and path lists + */ + +#define empty_string(str) ((str) == NULL || (str)[0] == '\0') + +struct cork_path * +cork_path_home(void) +{ + const char *path = cork_env_get(NULL, "HOME"); + if (empty_string(path)) { + cork_undefined("Cannot determine home directory"); + return NULL; + } else { + return cork_path_new(path); + } +} + + +struct cork_path_list * +cork_path_config_paths(void) +{ + struct cork_path_list *list = cork_path_list_new_empty(); + const char *var; + struct cork_path *path; + + /* The first entry should be the user's configuration directory. This is + * specified by $XDG_CONFIG_HOME, with $HOME/.config as the default. */ + var = cork_env_get(NULL, "XDG_CONFIG_HOME"); + if (empty_string(var)) { + ep_check(path = cork_path_home()); + cork_path_append(path, ".config"); + cork_path_list_add(list, path); + } else { + path = cork_path_new(var); + cork_path_list_add(list, path); + } + + /* The remaining entries should be the system-wide configuration + * directories. These are specified by $XDG_CONFIG_DIRS, with /etc/xdg as + * the default. */ + var = cork_env_get(NULL, "XDG_CONFIG_DIRS"); + if (empty_string(var)) { + path = cork_path_new("/etc/xdg"); + cork_path_list_add(list, path); + } else { + cork_path_list_append_string(list, var); + } + + return list; + +error: + cork_path_list_free(list); + return NULL; +} + +struct cork_path_list * +cork_path_data_paths(void) +{ + struct cork_path_list *list = cork_path_list_new_empty(); + const char *var; + struct cork_path *path; + + /* The first entry should be the user's data directory. This is specified + * by $XDG_DATA_HOME, with $HOME/.local/share as the default. */ + var = cork_env_get(NULL, "XDG_DATA_HOME"); + if (empty_string(var)) { + ep_check(path = cork_path_home()); + cork_path_append(path, ".local/share"); + cork_path_list_add(list, path); + } else { + path = cork_path_new(var); + cork_path_list_add(list, path); + } + + /* The remaining entries should be the system-wide configuration + * directories. These are specified by $XDG_DATA_DIRS, with + * /usr/local/share:/usr/share as the the default. */ + var = cork_env_get(NULL, "XDG_DATA_DIRS"); + if (empty_string(var)) { + path = cork_path_new("/usr/local/share"); + cork_path_list_add(list, path); + path = cork_path_new("/usr/share"); + cork_path_list_add(list, path); + } else { + cork_path_list_append_string(list, var); + } + + return list; + +error: + cork_path_list_free(list); + return NULL; +} + +struct cork_path * +cork_path_user_cache_path(void) +{ + const char *var; + struct cork_path *path; + + /* The user's cache directory is specified by $XDG_CACHE_HOME, with + * $HOME/.cache as the default. */ + var = cork_env_get(NULL, "XDG_CACHE_HOME"); + if (empty_string(var)) { + rpp_check(path = cork_path_home()); + cork_path_append(path, ".cache"); + return path; + } else { + return cork_path_new(var); + } +} + +struct cork_path * +cork_path_user_runtime_path(void) +{ + const char *var; + + /* The user's cache directory is specified by $XDG_RUNTIME_DIR, with + * no default given by the spec. */ + var = cork_env_get(NULL, "XDG_RUNTIME_DIR"); + if (empty_string(var)) { + cork_undefined("Cannot determine user-specific runtime directory"); + return NULL; + } else { + return cork_path_new(var); + } +} diff --git a/shadowsocksr-libev/src/libcork/posix/process.c b/shadowsocksr-libev/src/libcork/posix/process.c new file mode 100644 index 000000000..72afdd36d --- /dev/null +++ b/shadowsocksr-libev/src/libcork/posix/process.c @@ -0,0 +1,116 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include + +#include "libcork/core.h" +#include "libcork/ds.h" +#include "libcork/os/process.h" +#include "libcork/helpers/errors.h" + + +#if !defined(CORK_DEBUG_PROCESS) +#define CORK_DEBUG_PROCESS 0 +#endif + +#if CORK_DEBUG_PROCESS +#include +#define DEBUG(...) fprintf(stderr, __VA_ARGS__) +#else +#define DEBUG(...) /* no debug messages */ +#endif + + +struct cork_cleanup_entry { + struct cork_dllist_item item; + int priority; + const char *name; + cork_cleanup_function function; +}; + +static struct cork_cleanup_entry * +cork_cleanup_entry_new(const char *name, int priority, + cork_cleanup_function function) +{ + struct cork_cleanup_entry *self = cork_new(struct cork_cleanup_entry); + self->priority = priority; + self->name = cork_strdup(name); + self->function = function; + return self; +} + +static void +cork_cleanup_entry_free(struct cork_cleanup_entry *self) +{ + cork_strfree(self->name); + cork_delete(struct cork_cleanup_entry, self); +} + +static struct cork_dllist cleanup_entries = CORK_DLLIST_INIT(cleanup_entries); +static bool cleanup_registered = false; + +static void +cork_cleanup_call_one(struct cork_dllist_item *item, void *user_data) +{ + struct cork_cleanup_entry *entry = + cork_container_of(item, struct cork_cleanup_entry, item); + cork_cleanup_function function = entry->function; + DEBUG("Call cleanup function [%d] %s\n", entry->priority, entry->name); + /* We need to free the entry before calling the entry's function, since one + * of the functions that libcork registers frees the allocator instance that + * we'd use to free the entry. If we called the function first, the + * allocator would be freed before we could use it to free the entry. */ + cork_cleanup_entry_free(entry); + function(); +} + +static void +cork_cleanup_call_all(void) +{ + cork_dllist_map(&cleanup_entries, cork_cleanup_call_one, NULL); +} + +static void +cork_cleanup_entry_add(struct cork_cleanup_entry *entry) +{ + struct cork_dllist_item *curr; + + if (CORK_UNLIKELY(!cleanup_registered)) { + atexit(cork_cleanup_call_all); + cleanup_registered = true; + } + + /* Linear search through the list of existing cleanup functions. When we + * find the first existing function with a higher priority, we've found + * where to insert the new function. */ + for (curr = cork_dllist_start(&cleanup_entries); + !cork_dllist_is_end(&cleanup_entries, curr); curr = curr->next) { + struct cork_cleanup_entry *existing = + cork_container_of(curr, struct cork_cleanup_entry, item); + if (existing->priority > entry->priority) { + cork_dllist_add_before(&existing->item, &entry->item); + return; + } + } + + /* If we fall through the loop, then the new function should be appended to + * the end of the list. */ + cork_dllist_add(&cleanup_entries, &entry->item); +} + + +CORK_API void +cork_cleanup_at_exit_named(const char *name, int priority, + cork_cleanup_function function) +{ + struct cork_cleanup_entry *entry = + cork_cleanup_entry_new(name, priority, function); + DEBUG("Register cleanup function [%d] %s\n", priority, name); + cork_cleanup_entry_add(entry); +} diff --git a/shadowsocksr-libev/src/libcork/posix/subprocess.c b/shadowsocksr-libev/src/libcork/posix/subprocess.c new file mode 100644 index 000000000..063017fad --- /dev/null +++ b/shadowsocksr-libev/src/libcork/posix/subprocess.c @@ -0,0 +1,664 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2012-2014, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#include +#include +#include +#include +#ifndef __MINGW32__ +//#include +#include +#endif +#include + +#include "libcork/core.h" +#include "libcork/ds.h" +#include "libcork/os/subprocess.h" +#include "libcork/threads/basics.h" +#include "libcork/helpers/errors.h" +#include "libcork/helpers/posix.h" + + +#if !defined(CORK_DEBUG_SUBPROCESS) +#define CORK_DEBUG_SUBPROCESS 0 +#endif + +#if CORK_DEBUG_SUBPROCESS +#include +#define DEBUG(...) fprintf(stderr, __VA_ARGS__) +#else +#define DEBUG(...) /* no debug messages */ +#endif + + +/*----------------------------------------------------------------------- + * Subprocess groups + */ + +#define BUF_SIZE 4096 + +struct cork_subprocess_group { + cork_array(struct cork_subprocess *) subprocesses; +}; + +struct cork_subprocess_group * +cork_subprocess_group_new(void) +{ + struct cork_subprocess_group *group = + cork_new(struct cork_subprocess_group); + cork_pointer_array_init + (&group->subprocesses, (cork_free_f) cork_subprocess_free); + return group; +} + +void +cork_subprocess_group_free(struct cork_subprocess_group *group) +{ + cork_array_done(&group->subprocesses); + cork_delete(struct cork_subprocess_group, group); +} + +void +cork_subprocess_group_add(struct cork_subprocess_group *group, + struct cork_subprocess *sub) +{ + cork_array_append(&group->subprocesses, sub); +} + + +/*----------------------------------------------------------------------- + * Pipes (parent reads) + */ + +struct cork_read_pipe { + struct cork_stream_consumer *consumer; + int fds[2]; + bool first; +}; + +static void +cork_read_pipe_init(struct cork_read_pipe *p, struct cork_stream_consumer *consumer) +{ + p->consumer = consumer; + p->fds[0] = -1; + p->fds[1] = -1; +} + +static int +cork_read_pipe_close_read(struct cork_read_pipe *p) +{ + if (p->fds[0] != -1) { + DEBUG("Closing read pipe %d\n", p->fds[0]); + rii_check_posix(close(p->fds[0])); + p->fds[0] = -1; + } + return 0; +} + +static int +cork_read_pipe_close_write(struct cork_read_pipe *p) +{ + if (p->fds[1] != -1) { + DEBUG("Closing write pipe %d\n", p->fds[1]); + rii_check_posix(close(p->fds[1])); + p->fds[1] = -1; + } + return 0; +} + +static void +cork_read_pipe_close(struct cork_read_pipe *p) +{ + cork_read_pipe_close_read(p); + cork_read_pipe_close_write(p); +} + +static void +cork_read_pipe_done(struct cork_read_pipe *p) +{ + cork_read_pipe_close(p); +} + +static int +cork_read_pipe_open(struct cork_read_pipe *p) +{ + if (p->consumer != NULL) { + int flags; + + /* We want the read end of the pipe to be non-blocking. */ + DEBUG("[read] Opening pipe\n"); + rii_check_posix(pipe(p->fds)); + DEBUG("[read] Got read=%d write=%d\n", p->fds[0], p->fds[1]); + DEBUG("[read] Setting non-blocking flag on read pipe\n"); + ei_check_posix(flags = fcntl(p->fds[0], F_GETFD)); + flags |= O_NONBLOCK; + ei_check_posix(fcntl(p->fds[0], F_SETFD, flags)); + } + + p->first = true; + return 0; + +error: + cork_read_pipe_close(p); + return -1; +} + +static int +cork_read_pipe_dup(struct cork_read_pipe *p, int fd) +{ + if (p->fds[1] != -1) { + rii_check_posix(dup2(p->fds[1], fd)); + } + return 0; +} + +static int +cork_read_pipe_read(struct cork_read_pipe *p, char *buf, bool *progress) +{ + if (p->fds[0] == -1) { + return 0; + } + + do { + DEBUG("[read] Reading from pipe %d\n", p->fds[0]); + ssize_t bytes_read = read(p->fds[0], buf, BUF_SIZE); + if (bytes_read == -1) { + if (errno == EAGAIN) { + /* We've exhausted all of the data currently available. */ + DEBUG("[read] No more bytes without blocking\n"); + return 0; + } else if (errno == EINTR) { + /* Interrupted by a signal; return so that our wait loop can + * catch that. */ + DEBUG("[read] Interrupted by signal\n"); + return 0; + } else { + /* An actual error */ + cork_system_error_set(); + DEBUG("[read] Error: %s\n", cork_error_message()); + return -1; + } + } else if (bytes_read == 0) { + DEBUG("[read] End of stream\n"); + *progress = true; + rii_check(cork_stream_consumer_eof(p->consumer)); + rii_check_posix(close(p->fds[0])); + p->fds[0] = -1; + return 0; + } else { + DEBUG("[read] Got %zd bytes\n", bytes_read); + *progress = true; + rii_check(cork_stream_consumer_data + (p->consumer, buf, bytes_read, p->first)); + p->first = false; + } + } while (true); +} + +static bool +cork_read_pipe_is_finished(struct cork_read_pipe *p) +{ + return p->fds[0] == -1; +} + + +/*----------------------------------------------------------------------- + * Pipes (parent writes) + */ + +struct cork_write_pipe { + struct cork_stream_consumer consumer; + int fds[2]; +}; + +static int +cork_write_pipe_close_read(struct cork_write_pipe *p) +{ + if (p->fds[0] != -1) { + DEBUG("[write] Closing read pipe %d\n", p->fds[0]); + rii_check_posix(close(p->fds[0])); + p->fds[0] = -1; + } + return 0; +} + +static int +cork_write_pipe_close_write(struct cork_write_pipe *p) +{ + if (p->fds[1] != -1) { + DEBUG("[write] Closing write pipe %d\n", p->fds[1]); + rii_check_posix(close(p->fds[1])); + p->fds[1] = -1; + } + return 0; +} + +static int +cork_write_pipe__data(struct cork_stream_consumer *consumer, + const void *buf, size_t size, bool is_first_chunk) +{ + struct cork_write_pipe *p = + cork_container_of(consumer, struct cork_write_pipe, consumer); + rii_check_posix(write(p->fds[1], buf, size)); + return 0; +} + +static int +cork_write_pipe__eof(struct cork_stream_consumer *consumer) +{ + struct cork_write_pipe *p = + cork_container_of(consumer, struct cork_write_pipe, consumer); + return cork_write_pipe_close_write(p); +} + +static void +cork_write_pipe__free(struct cork_stream_consumer *consumer) +{ +} + +static void +cork_write_pipe_init(struct cork_write_pipe *p) +{ + p->consumer.data = cork_write_pipe__data; + p->consumer.eof = cork_write_pipe__eof; + p->consumer.free = cork_write_pipe__free; + p->fds[0] = -1; + p->fds[1] = -1; +} + +static void +cork_write_pipe_close(struct cork_write_pipe *p) +{ + cork_write_pipe_close_read(p); + cork_write_pipe_close_write(p); +} + +static void +cork_write_pipe_done(struct cork_write_pipe *p) +{ + cork_write_pipe_close(p); +} + +static int +cork_write_pipe_open(struct cork_write_pipe *p) +{ + DEBUG("[write] Opening writer pipe\n"); + rii_check_posix(pipe(p->fds)); + DEBUG("[write] Got read=%d write=%d\n", p->fds[0], p->fds[1]); + return 0; +} + +static int +cork_write_pipe_dup(struct cork_write_pipe *p, int fd) +{ + if (p->fds[0] != -1) { + rii_check_posix(dup2(p->fds[0], fd)); + } + return 0; +} + + +/*----------------------------------------------------------------------- + * Subprocesses + */ + +struct cork_subprocess { + pid_t pid; + struct cork_write_pipe stdin_pipe; + struct cork_read_pipe stdout_pipe; + struct cork_read_pipe stderr_pipe; + void *user_data; + cork_free_f free_user_data; + cork_run_f run; + int *exit_code; + char buf[BUF_SIZE]; +}; + +struct cork_subprocess * +cork_subprocess_new(void *user_data, cork_free_f free_user_data, + cork_run_f run, + struct cork_stream_consumer *stdout_consumer, + struct cork_stream_consumer *stderr_consumer, + int *exit_code) +{ + struct cork_subprocess *self = cork_new(struct cork_subprocess); + cork_write_pipe_init(&self->stdin_pipe); + cork_read_pipe_init(&self->stdout_pipe, stdout_consumer); + cork_read_pipe_init(&self->stderr_pipe, stderr_consumer); + self->pid = 0; + self->user_data = user_data; + self->free_user_data = free_user_data; + self->run = run; + self->exit_code = exit_code; + return self; +} + +void +cork_subprocess_free(struct cork_subprocess *self) +{ + cork_free_user_data(self); + cork_write_pipe_done(&self->stdin_pipe); + cork_read_pipe_done(&self->stdout_pipe); + cork_read_pipe_done(&self->stderr_pipe); + cork_delete(struct cork_subprocess, self); +} + +struct cork_stream_consumer * +cork_subprocess_stdin(struct cork_subprocess *self) +{ + return &self->stdin_pipe.consumer; +} + + +/*----------------------------------------------------------------------- + * Executing another program + */ + +static int +cork_exec__run(void *vself) +{ + struct cork_exec *exec = vself; + return cork_exec_run(exec); +} + +static void +cork_exec__free(void *vself) +{ + struct cork_exec *exec = vself; + cork_exec_free(exec); +} + +struct cork_subprocess * +cork_subprocess_new_exec(struct cork_exec *exec, + struct cork_stream_consumer *out, + struct cork_stream_consumer *err, + int *exit_code) +{ + return cork_subprocess_new + (exec, cork_exec__free, + cork_exec__run, + out, err, exit_code); +} + + +/*----------------------------------------------------------------------- + * Running subprocesses + */ + +int +cork_subprocess_start(struct cork_subprocess *self) +{ + pid_t pid; + + /* Create the stdout and stderr pipes. */ + if (cork_write_pipe_open(&self->stdin_pipe) == -1) { + return -1; + } + if (cork_read_pipe_open(&self->stdout_pipe) == -1) { + cork_write_pipe_close(&self->stdin_pipe); + return -1; + } + if (cork_read_pipe_open(&self->stderr_pipe) == -1) { + cork_write_pipe_close(&self->stdin_pipe); + cork_read_pipe_close(&self->stdout_pipe); + return -1; + } + + /* Fork the child process. */ + DEBUG("Forking child process\n"); + pid = fork(); + if (pid == 0) { + /* Child process */ + int rc; + + /* Close the parent's end of the pipes */ + DEBUG("[child] "); + cork_write_pipe_close_write(&self->stdin_pipe); + DEBUG("[child] "); + cork_read_pipe_close_read(&self->stdout_pipe); + DEBUG("[child] "); + cork_read_pipe_close_read(&self->stderr_pipe); + + /* Bind the stdout and stderr pipes */ + if (cork_write_pipe_dup(&self->stdin_pipe, STDIN_FILENO) == -1) { + _exit(EXIT_FAILURE); + } + if (cork_read_pipe_dup(&self->stdout_pipe, STDOUT_FILENO) == -1) { + _exit(EXIT_FAILURE); + } + if (cork_read_pipe_dup(&self->stderr_pipe, STDERR_FILENO) == -1) { + _exit(EXIT_FAILURE); + } + + /* Run the subprocess */ + rc = self->run(self->user_data); + if (CORK_LIKELY(rc == 0)) { + _exit(EXIT_SUCCESS); + } else { + fprintf(stderr, "%s\n", cork_error_message()); + _exit(EXIT_FAILURE); + } + } else if (pid < 0) { + /* Error forking */ + cork_system_error_set(); + return -1; + } else { + /* Parent process */ + DEBUG(" Child PID=%d\n", (int) pid); + self->pid = pid; + cork_write_pipe_close_read(&self->stdin_pipe); + cork_read_pipe_close_write(&self->stdout_pipe); + cork_read_pipe_close_write(&self->stderr_pipe); + return 0; + } +} + +static int +cork_subprocess_reap(struct cork_subprocess *self, int flags, bool *progress) +{ + int pid; + int status; + rii_check_posix(pid = waitpid(self->pid, &status, flags)); + if (pid == self->pid) { + *progress = true; + self->pid = 0; + if (self->exit_code != NULL) { + *self->exit_code = WEXITSTATUS(status); + } + } + return 0; +} + +int +cork_subprocess_abort(struct cork_subprocess *self) +{ + if (self->pid > 0) { + CORK_ATTR_UNUSED bool progress; + DEBUG("Terminating child process %d\n", (int) self->pid); + kill(self->pid, SIGTERM); + return cork_subprocess_reap(self, 0, &progress); + } else { + return 0; + } +} + +bool +cork_subprocess_is_finished(struct cork_subprocess *self) +{ + return (self->pid == 0) + && cork_read_pipe_is_finished(&self->stdout_pipe) + && cork_read_pipe_is_finished(&self->stderr_pipe); +} + +#if defined(__APPLE__) || defined(__MINGW32__) +#include +#define THREAD_YIELD pthread_yield_np +#elif defined(__linux__) || defined(BSD) || defined(__sun) || defined(__FreeBSD_kernel__) || defined(__GNU__) || defined(__CYGWIN__) +#include +#define THREAD_YIELD sched_yield +#else +#error "Unknown thread yield implementation" +#endif + +static void +cork_subprocess_yield(unsigned int *spin_count) +{ + /* Adapted from + * http://www.1024cores.net/home/lock-free-algorithms/tricks/spinning */ + + if (*spin_count < 10) { + /* Spin-wait */ + cork_pause(); + } else if (*spin_count < 20) { + /* A more intense spin-wait */ + int i; + for (i = 0; i < 50; i++) { + cork_pause(); + } + } else if (*spin_count < 22) { + THREAD_YIELD(); + } else if (*spin_count < 24) { + usleep(0); + } else if (*spin_count < 50) { + usleep(1); + } else if (*spin_count < 75) { + usleep((*spin_count - 49) * 1000); + } else { + usleep(25000); + } + + (*spin_count)++; +} + +static int +cork_subprocess_drain_(struct cork_subprocess *self, bool *progress) +{ + rii_check(cork_read_pipe_read(&self->stdout_pipe, self->buf, progress)); + rii_check(cork_read_pipe_read(&self->stderr_pipe, self->buf, progress)); + if (self->pid > 0) { + return cork_subprocess_reap(self, WNOHANG, progress); + } else { + return 0; + } +} + +bool +cork_subprocess_drain(struct cork_subprocess *self) +{ + bool progress; + cork_subprocess_drain_(self, &progress); + return progress; +} + +int +cork_subprocess_wait(struct cork_subprocess *self) +{ + unsigned int spin_count = 0; + bool progress; + while (!cork_subprocess_is_finished(self)) { + progress = false; + rii_check(cork_subprocess_drain_(self, &progress)); + if (!progress) { + cork_subprocess_yield(&spin_count); + } + } + return 0; +} + + +/*----------------------------------------------------------------------- + * Running subprocess groups + */ + +static int +cork_subprocess_group_terminate(struct cork_subprocess_group *group) +{ + size_t i; + for (i = 0; i < cork_array_size(&group->subprocesses); i++) { + struct cork_subprocess *sub = cork_array_at(&group->subprocesses, i); + rii_check(cork_subprocess_abort(sub)); + } + return 0; +} + +int +cork_subprocess_group_start(struct cork_subprocess_group *group) +{ + size_t i; + DEBUG("Starting subprocess group\n"); + /* Start each subprocess. */ + for (i = 0; i < cork_array_size(&group->subprocesses); i++) { + struct cork_subprocess *sub = cork_array_at(&group->subprocesses, i); + ei_check(cork_subprocess_start(sub)); + } + return 0; + +error: + cork_subprocess_group_terminate(group); + return -1; +} + + +int +cork_subprocess_group_abort(struct cork_subprocess_group *group) +{ + DEBUG("Aborting subprocess group\n"); + return cork_subprocess_group_terminate(group); +} + + +bool +cork_subprocess_group_is_finished(struct cork_subprocess_group *group) +{ + size_t i; + for (i = 0; i < cork_array_size(&group->subprocesses); i++) { + struct cork_subprocess *sub = cork_array_at(&group->subprocesses, i); + bool sub_finished = cork_subprocess_is_finished(sub); + if (!sub_finished) { + return false; + } + } + return true; +} + +static int +cork_subprocess_group_drain_(struct cork_subprocess_group *group, + bool *progress) +{ + size_t i; + for (i = 0; i < cork_array_size(&group->subprocesses); i++) { + struct cork_subprocess *sub = cork_array_at(&group->subprocesses, i); + rii_check(cork_subprocess_drain_(sub, progress)); + } + return 0; +} + +bool +cork_subprocess_group_drain(struct cork_subprocess_group *group) +{ + bool progress = false; + cork_subprocess_group_drain_(group, &progress); + return progress; +} + +int +cork_subprocess_group_wait(struct cork_subprocess_group *group) +{ + unsigned int spin_count = 0; + bool progress; + DEBUG("Waiting for subprocess group to finish\n"); + while (!cork_subprocess_group_is_finished(group)) { + progress = false; + rii_check(cork_subprocess_group_drain_(group, &progress)); + if (!progress) { + cork_subprocess_yield(&spin_count); + } + } + return 0; +} diff --git a/shadowsocksr-libev/src/libcork/pthreads/thread.c b/shadowsocksr-libev/src/libcork/pthreads/thread.c new file mode 100644 index 000000000..d8347790f --- /dev/null +++ b/shadowsocksr-libev/src/libcork/pthreads/thread.c @@ -0,0 +1,223 @@ +/* -*- coding: utf-8 -*- + * ---------------------------------------------------------------------- + * Copyright © 2013-2015, RedJack, LLC. + * All rights reserved. + * + * Please see the COPYING file in this distribution for license details. + * ---------------------------------------------------------------------- + */ + +#if defined(__linux) +/* This is needed on Linux to get the pthread_setname_np function. */ +#if !defined(_GNU_SOURCE) +#define _GNU_SOURCE 1 +#endif +#endif + +#include +#include + +#include + +#include "libcork/core/allocator.h" +#include "libcork/core/error.h" +#include "libcork/core/types.h" +#include "libcork/ds/buffer.h" +#include "libcork/threads/basics.h" + + +/*----------------------------------------------------------------------- + * Current thread + */ + +static volatile cork_thread_id last_thread_descriptor = 0; + +struct cork_thread { + const char *name; + cork_thread_id id; + pthread_t thread_id; + void *user_data; + cork_free_f free_user_data; + cork_run_f run; + cork_error error_code; + struct cork_buffer error_message; + bool started; + bool joined; +}; + +struct cork_thread_descriptor { + struct cork_thread *current_thread; + cork_thread_id id; +}; + +cork_tls(struct cork_thread_descriptor, cork_thread_descriptor); + +struct cork_thread * +cork_current_thread_get(void) +{ + struct cork_thread_descriptor *desc = cork_thread_descriptor_get(); + return desc->current_thread; +} + +cork_thread_id +cork_current_thread_get_id(void) +{ + struct cork_thread_descriptor *desc = cork_thread_descriptor_get(); + if (CORK_UNLIKELY(desc->id == 0)) { + if (desc->current_thread == NULL) { + desc->id = cork_uint_atomic_add(&last_thread_descriptor, 1); + } else { + desc->id = desc->current_thread->id; + } + } + return desc->id; +} + + +/*----------------------------------------------------------------------- + * Threads + */ + +struct cork_thread * +cork_thread_new(const char *name, + void *user_data, cork_free_f free_user_data, + cork_run_f run) +{ + struct cork_thread *self = cork_new(struct cork_thread); + self->name = cork_strdup(name); + self->id = cork_uint_atomic_add(&last_thread_descriptor, 1); + self->user_data = user_data; + self->free_user_data = free_user_data; + self->run = run; + self->error_code = CORK_ERROR_NONE; + cork_buffer_init(&self->error_message); + self->started = false; + self->joined = false; + return self; +} + +static void +cork_thread_free_private(struct cork_thread *self) +{ + cork_strfree(self->name); + cork_free_user_data(self); + cork_buffer_done(&self->error_message); + cork_delete(struct cork_thread, self); +} + +void +cork_thread_free(struct cork_thread *self) +{ + assert(!self->started); + cork_thread_free_private(self); +} + +const char * +cork_thread_get_name(struct cork_thread *self) +{ + return self->name; +} + +cork_thread_id +cork_thread_get_id(struct cork_thread *self) +{ + return self->id; +} + +#define PTHREADS_MAX_THREAD_NAME_LENGTH 16 + +static void * +cork_thread_pthread_run(void *vself) +{ + int rc; + struct cork_thread *self = vself; + struct cork_thread_descriptor *desc = cork_thread_descriptor_get(); +#if defined(__APPLE__) && defined(__MACH__) + char thread_name[PTHREADS_MAX_THREAD_NAME_LENGTH]; +#endif + + desc->current_thread = self; + desc->id = self->id; + rc = self->run(self->user_data); + +#if defined(__APPLE__) && defined(__MACH__) + /* On Mac OS X, we set the name of the current thread, not of an arbitrary + * thread of our choosing. */ + strncpy(thread_name, self->name, PTHREADS_MAX_THREAD_NAME_LENGTH); + thread_name[PTHREADS_MAX_THREAD_NAME_LENGTH - 1] = '\0'; + pthread_setname_np(thread_name); +#endif + + /* If an error occurred in the body of the thread, save the error into the + * cork_thread object so that we can propagate that error when some calls + * cork_thread_join. */ + if (CORK_UNLIKELY(rc != 0)) { + if (CORK_LIKELY(cork_error_occurred())) { + self->error_code = cork_error_code(); + cork_buffer_set_string(&self->error_message, cork_error_message()); + } else { + self->error_code = CORK_UNKNOWN_ERROR; + cork_buffer_set_string(&self->error_message, "Unknown error"); + } + } + + return NULL; +} + +int +cork_thread_start(struct cork_thread *self) +{ + int rc; + pthread_t thread_id; +#if defined(__linux) && ((__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 12)) + char thread_name[PTHREADS_MAX_THREAD_NAME_LENGTH]; +#endif + + assert(!self->started); + + rc = pthread_create(&thread_id, NULL, cork_thread_pthread_run, self); + if (CORK_UNLIKELY(rc != 0)) { + cork_system_error_set_explicit(rc); + return -1; + } + +#if defined(__linux) && ((__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 12)) + /* On Linux we choose which thread to name via an explicit thread ID. + * However, pthread_setname_np() isn't supported on versions of glibc + * earlier than 2.12. So we need to check for a MINOR version of 12 or + * higher. */ + strncpy(thread_name, self->name, PTHREADS_MAX_THREAD_NAME_LENGTH); + thread_name[PTHREADS_MAX_THREAD_NAME_LENGTH - 1] = '\0'; + pthread_setname_np(thread_id, thread_name); +#endif + + self->thread_id = thread_id; + self->started = true; + return 0; +} + +int +cork_thread_join(struct cork_thread *self) +{ + int rc; + + assert(self->started && !self->joined); + + rc = pthread_join(self->thread_id, NULL); + if (CORK_UNLIKELY(rc != 0)) { + cork_system_error_set_explicit(rc); + cork_thread_free_private(self); + return -1; + } + + if (CORK_UNLIKELY(self->error_code != CORK_ERROR_NONE)) { + cork_error_set_printf + (self->error_code, "Error from thread %s: %s", + self->name, (char *) self->error_message.buf); + cork_thread_free_private(self); + return -1; + } + + cork_thread_free_private(self); + return 0; +} diff --git a/shadowsocksr-libev/src/libev/CMakeLists.txt b/shadowsocksr-libev/src/libev/CMakeLists.txt new file mode 100644 index 000000000..58c622b37 --- /dev/null +++ b/shadowsocksr-libev/src/libev/CMakeLists.txt @@ -0,0 +1,30 @@ +# Copyright (C) 2007-2013 LuaDist. +# Created by Peter Drahoš, Peter Kapec +# Redistribution and use of this file is allowed according to the terms of the MIT license. +# For details see the COPYRIGHT file distributed with LuaDist. +# Please note that the package source code is licensed under its own license. + +project ( libev C ) +cmake_minimum_required ( VERSION 2.8 ) +include ( cmake/dist.cmake ) +#include ( configure ) + +#configure_file ( ${CMAKE_CURRENT_SOURCE_DIR}/config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config.h ) +include_directories( ${CMAKE_BINARY_DIR} ) + +set ( EV_SRC + ev.c + event.c +) + +if (CYGWIN) + list ( APPEND EV_LIBS Ws2_32 ) +endif () + +add_library ( ev STATIC ${EV_SRC} ) +target_link_libraries ( ev ${EV_LIBS} ) + +set(libev_include_dirs + ${PROJECT_SOURCE_DIR} + CACHE INTERNAL "libev library" FORCE + ) diff --git a/shadowsocksr-libev/src/libev/Changes b/shadowsocksr-libev/src/libev/Changes new file mode 100644 index 000000000..b9d9b16ed --- /dev/null +++ b/shadowsocksr-libev/src/libev/Changes @@ -0,0 +1,517 @@ +Revision history for libev, a high-performance and full-featured event loop. + +TODO: ev_loop_wakeup +TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone) +TODO: faq, process a thing in each iteration +TODO: dbeugging tips, ev_verify, ev_init twice +TODO: ev_break for immediate exit (EVBREAK_NOW?) +TODO: ev_feed_child_event +TODO: document the special problem of signals around fork. +TODO: store pid for each signal +TODO: document file descriptor usage per loop +TODO: store loop pid_t and compare isndie signal handler,store 1 for same, 2 for differign pid, clean up in loop_fork +TODO: embed watchers need updating when fd changes +TODO: document portability requirements for atomic pointer access +TODO: document requirements for function pointers and calling conventions. + +4.22 Sun Dec 20 22:11:50 CET 2015 + - when epoll detects unremovable fds in the fd set, rebuild + only the epoll descriptor, not the signal pipe, to avoid + SIGPIPE in ev_async_send. This doesn't solve it on fork, + so document what needs to be done in ev_loop_fork + (analyzed by Benjamin Mahler). + - remove superfluous sys/timeb.h include on win32 + (analyzed by Jason Madden). + - updated libecb. + +4.20 Sat Jun 20 13:01:43 CEST 2015 + - prefer noexcept over throw () with C++ 11. + - update ecb.h due to incompatibilities with c11. + - fix a potential aliasing issue when reading and writing + watcher callbacks. + +4.19 Thu Sep 25 08:18:25 CEST 2014 + - ev.h wasn't valid C++ anymore, which tripped compilers other than + clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately, + C++ doesn't support typedefs for function pointers fully, so the affected + declarations have to spell out the types each time. + - when not using autoconf, tighten the check for clock_gettime and related + functionality. + +4.18 Fri Sep 5 17:55:26 CEST 2014 + - events on files were not always generated properly with the + epoll backend (testcase by Assaf Inbal). + - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin). + - (ecb) support m68k, m88k and sh (patch by Miod Vallat). + - use a reasonable fallback for EV_NSIG instead of erroring out + when we can't detect the signal set size. + - in the absence of autoconf, do not use the clock syscall + on glibc >= 2.17 (avoids the syscall AND -lrt on systems + doing clock_gettime in userspace). + - ensure extern "C" function pointers are used for externally-visible + loop callbacks (not watcher callbacks yet). + - (ecb) work around memory barriers and volatile apparently both being + broken in visual studio 2008 and later (analysed and patch by Nicolas Noble). + +4.15 Fri Mar 1 12:04:50 CET 2013 + - destroying a non-default loop would stop the global waitpid + watcher (Denis Bilenko). + - queueing pending watchers of higher priority from a watcher now invokes + them in a timely fashion (reported by Denis Bilenko). + - add throw() to all libev functions that cannot throw exceptions, for + further code size decrease when compiling for C++. + - add throw () to callbacks that must not throw exceptions (allocator, + syserr, loop acquire/release, periodic reschedule cbs). + - fix event_base_loop return code, add event_get_callback, event_base_new, + event_base_get_method calls to improve libevent 1.x emulation and add + some libevent 2.x functionality (based on a patch by Jeff Davey). + - add more memory fences to fix a bug reported by Jeff Davey. Better + be overfenced than underprotected. + - ev_run now returns a boolean status (true meaning watchers are + still active). + - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with + libev's EV_ERROR (reported by 191919). + - (ecb) add memory fence support for xlC (Darin McBride). + - (ecb) add memory fence support for gcc-mips (Anton Kirilov). + - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber). + - work around some kernels losing file descriptors by leaking + the kqueue descriptor in the child. + - work around linux inotify not reporting IN_ATTRIB changes for directories + in many cases. + - include sys/syscall.h instead of plain syscall.h. + - check for io watcher loops in ev_verify, check for the most + common reported usage bug in ev_io_start. + - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET. + - always use WSASend/WSARecv directly on windows, hoping that this + works in all cases (unlike read/write/send/recv...). + - try to detect signals around a fork faster (test program by + Denis Bilenko). + - work around recent glibc versions that leak memory in realloc. + - rename ev::embed::set to ev::embed::set_embed to avoid clashing + the watcher base set (loop) method. + - rewrite the async/signal pipe logic to always keep a valid fd, which + simplifies (and hopefully correctifies :) the race checking + on fork, at the cost of one extra fd. + - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of + inotify-supporting filesystems. + - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf + versions ignore it before + (https://bugzilla.redhat.com/show_bug.cgi?id=908096). + - add some untested android support. + - enum expressions must be of type int (reported by Juan Pablo L). + +4.11 Sat Feb 4 19:52:39 CET 2012 + - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as + was documented already, but not implemented in the repeating case. + - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS. + - fix a race where the workaround against the epoll fork bugs + caused signals to not be handled anymore. + - correct backend_fudge for most backends, and implement a windows + specific workaround to avoid looping because we call both + select and Sleep, both with different time resolutions. + - document range and guarantees of ev_sleep. + - document reasonable ranges for periodics interval and offset. + - rename backend_fudge to backend_mintime to avoid future confusion :) + - change the default periodic reschedule function to hopefully be more + exact and correct even in corner cases or in the far future. + - do not rely on -lm anymore: use it when available but use our + own floor () if it is missing. This should make it easier to embed, + as no external libraries are required. + - strategically import macros from libecb and mark rarely-used functions + as cache-cold (saving almost 2k code size on typical amd64 setups). + - add Symbols.ev and Symbols.event files, that were missing. + - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now). + - fix #3 "be smart about timeouts" to not "deadlock" when + timeout == now, also improve the section overall. + - avoid "AVOIDING FINISHING BEFORE RETURNING" idiom. + - support new EV_API_STATIC mode to make all libev symbols + static. + - supply default CFLAGS of -g -O3 with gcc when original CFLAGS + were empty. + +4.04 Wed Feb 16 09:01:51 CET 2011 + - fix two problems in the native win32 backend, where reuse of fd's + with different underlying handles caused handles not to be removed + or added to the select set (analyzed and tested by Bert Belder). + - do no rely on ceil() in ev_e?poll.c. + - backport libev to HP-UX versions before 11 v3. + - configure did not detect nanosleep and clock_gettime properly when + they are available in the libc (as opposed to -lrt). + +4.03 Tue Jan 11 14:37:25 CET 2011 + - officially support polling files with all backends. + - support files, /dev/zero etc. the same way as select in the epoll + backend, by generating events on our own. + - ports backend: work around solaris bug 6874410 and many related ones + (EINTR, maybe more), with no performance loss (note that the solaris + bug report is actually wrong, reality is far more bizarre and broken + than that). + - define EV_READ/EV_WRITE as macros in event.h, as some programs use + #ifdef to test for them. + - new (experimental) function: ev_feed_signal. + - new (to become default) EVFLAG_NOSIGMASK flag. + - new EVBACKEND_MASK symbol. + - updated COMMON IDIOMS SECTION. + +4.01 Fri Nov 5 21:51:29 CET 2010 + - automake fucked it up, apparently, --add-missing -f is not quite enough + to make it update its files, so 4.00 didn't install ev++.h and + event.h on make install. grrr. + - ev_loop(count|depth) didn't return anything (Robin Haberkorn). + - change EV_UNDEF to 0xffffffff to silence some overzealous compilers. + - use "(libev) " prefix for all libev error messages now. + +4.00 Mon Oct 25 12:32:12 CEST 2010 + - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading. + - ev_embed_stop did not correctly stop the watcher (very good + testcase by Vladimir Timofeev). + - ev_run will now always update the current loop time - it erroneously + didn't when idle watchers were active, causing timers not to fire. + - fix a bug where a timeout of zero caused the timer not to fire + in the libevent emulation (testcase by Péter Szabó). + - applied win32 fixes by Michael Lenaghan (also James Mansion). + - replace EV_MINIMAL by EV_FEATURES. + - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it + seems the former is *much* faster than the latter. + - linux kernel version detection (for inotify bug workarounds) + did not work properly. + - reduce the number of spurious wake-ups with the ports backend. + - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu). + - do async init within ev_async_start, not ev_async_set, which avoids + an API quirk where the set function must be called in the C++ API + even when there is nothing to set. + - add (undocumented) EV_ENABLE when adding events with kqueue, + this might help with OS X, which seems to need it despite documenting + not to need it (helpfully pointed out by Tilghman Lesher). + - do not use poll by default on freebsd, it's broken (what isn't + on freebsd...). + - allow to embed epoll on kernels >= 2.6.32. + - configure now prepends -O3, not appends it, so one can still + override it. + - ev.pod: greatly expanded the portability section, added a porting + section, a description of watcher states and made lots of minor fixes. + - disable poll backend on AIX, the poll header spams the namespace + and it's not worth working around dead platforms (reported + and analyzed by Aivars Kalvans). + - improve header file compatibility of the standalone eventfd code + in an obscure case. + - implement EV_AVOID_STDIO option. + - do not use sscanf to parse linux version number (smaller, faster, + no sscanf dependency). + - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings. + - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs. + - add section on accept() problems to the manpage. + - rename EV_TIMEOUT to EV_TIMER. + - rename ev_loop_count/depth/verify/loop/unloop. + - remove ev_default_destroy and ev_default_fork. + - switch to two-digit minor version. + - work around an apparent gentoo compiler bug. + - define _DARWIN_UNLIMITED_SELECT. just so. + - use enum instead of #define for most constants. + - improve compatibility to older C++ compilers. + - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now + default arguments when compiled as C++. + - enable automake dependency tracking. + - ev_loop_new no longer leaks memory when loop creation failed. + - new ev_cleanup watcher type. + +3.9 Thu Dec 31 07:59:59 CET 2009 + - signalfd is no longer used by default and has to be requested + explicitly - this means that easy to catch bugs become hard to + catch race conditions, but the users have spoken. + - point out the unspecified signal mask in the documentation, and + that this is a race condition regardless of EV_SIGNALFD. + - backport inotify code to C89. + - inotify file descriptors could leak into child processes. + - ev_stat watchers could keep an erroneous extra ref on the loop, + preventing exit when unregistering all watchers (testcases + provided by ry@tinyclouds.org). + - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration + symbols to make it easier for apps to do their own fd management. + - support EV_IDLE_ENABLE being disabled in ev++.h + (patch by Didier Spezia). + - take advantage of inotify_init1, if available, to set cloexec/nonblock + on fd creation, to avoid races. + - the signal handling pipe wasn't always initialised under windows + (analysed by lekma). + - changed minimum glibc requirement from glibc 2.9 to 2.7, for + signalfd. + - add missing string.h include (Denis F. Latypoff). + - only replace ev_stat.prev when we detect an actual difference, + so prev is (almost) always different to attr. this might + have caused the problems with 04_stat.t. + - add ev::timer->remaining () method to C++ API. + +3.8 Sun Aug 9 14:30:45 CEST 2009 + - incompatible change: do not necessarily reset signal handler + to SIG_DFL when a sighandler is stopped. + - ev_default_destroy did not properly free or zero some members, + potentially causing crashes and memory corruption on repeated + ev_default_destroy/ev_default_loop calls. + - take advantage of signalfd on GNU/Linux systems. + - document that the signal mask might be in an unspecified + state when using libev's signal handling. + - take advantage of some GNU/Linux calls to set cloexec/nonblock + on fd creation, to avoid race conditions. + +3.7 Fri Jul 17 16:36:32 CEST 2009 + - ev_unloop and ev_loop wrongly used a global variable to exit loops, + instead of using a per-loop variable (bug caught by accident...). + - the ev_set_io_collect_interval interpretation has changed. + - add new functionality: ev_set_userdata, ev_userdata, + ev_set_invoke_pending_cb, ev_set_loop_release_cb, + ev_invoke_pending, ev_pending_count, together with a long example + about thread locking. + - add ev_timer_remaining (as requested by Denis F. Latypoff). + - add ev_loop_depth. + - calling ev_unloop in fork/prepare watchers will no longer poll + for new events. + - Denis F. Latypoff corrected many typos in example code snippets. + - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double- + check that the syscall number is available before trying to + use it (reported by ry@tinyclouds). + - use GetSystemTimeAsFileTime instead of _timeb on windows, for + slightly higher accuracy. + - properly declare ev_loop_verify and ev_now_update even when + !EV_MULTIPLICITY. + - do not compile in any priority code when EV_MAXPRI == EV_MINPRI. + - support EV_MINIMAL==2 for a reduced API. + - actually 0-initialise struct sigaction when installing signals. + - add section on hibernate and stopped processes to ev_timer docs. + +3.6 Tue Apr 28 02:49:30 CEST 2009 + - multiple timers becoming ready within an event loop iteration + will be invoked in the "correct" order now. + - do not leave the event loop early just because we have no active + watchers, fixing a problem when embedding a kqueue loop + that has active kernel events but no registered watchers + (reported by blacksand blacksand). + - correctly zero the idx values for arrays, so destroying and + reinitialising the default loop actually works (patch by + Malek Hadj-Ali). + - implement ev_suspend and ev_resume. + - new EV_CUSTOM revents flag for use by applications. + - add documentation section about priorities. + - add a glossary to the documentation. + - extend the ev_fork description slightly. + - optimize a jump out of call_pending. + +3.53 Sun Feb 15 02:38:20 CET 2009 + - fix a bug in event pipe creation on win32 that would cause a + failed assertion on event loop creation (patch by Malek Hadj-Ali). + - probe for CLOCK_REALTIME support at runtime as well and fall + back to gettimeofday if there is an error, to support older + operating systems with newer header files/libraries. + - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL + (default most everywhere), otherwise not. + +3.52 Wed Jan 7 21:43:02 CET 2009 + - fix compilation of select backend in fd_set mode when NFDBITS is + missing (to get it to compile on QNX, reported by Rodrigo Campos). + - better select-nfds handling when select backend is in fd_set mode. + - diagnose fd_set overruns when select backend is in fd_set mode. + - due to a thinko, instead of disabling everything but + select on the borked OS X platform, everything but select was + allowed (reported by Emanuele Giaquinta). + - actually verify that local and remote port are matching in + libev's socketpair emulation, which makes denial-of-service + attacks harder (but not impossible - it's windows). Make sure + it even works under vista, which thinks that getpeer/sockname + should return fantasy port numbers. + - include "libev" in all assertion messages for potentially + clearer diagnostics. + - event_get_version (libevent compatibility) returned + a useless string instead of the expected version string + (patch by W.C.A. Wijngaards). + +3.51 Wed Dec 24 23:00:11 CET 2008 + - fix a bug where an inotify watcher was added twice, causing + freezes on hash collisions (reported and analysed by Graham Leggett). + - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use + a direct syscall - slower, but no dependency on librt et al. + - assume negative return values != -1 signals success of port_getn + (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52) + (no known failure reports, but it doesn't hurt). + - fork detection in ev_embed now stops and restarts the watcher + automatically. + - EXPERIMENTAL: default the method to operator () in ev++.h, + to make it nicer to use functors (requested by Benedek László). + - fixed const object callbacks in ev++.h. + - replaced loop_ref argument of watcher.set (loop) by a direct + ev_loop * in ev++.h, to avoid clashes with functor patch. + - do not try to watch the empty string via inotify. + - inotify watchers could be leaked under certain circumstances. + - OS X 10.5 is actually even more broken than earlier versions, + so fall back to select on that piece of garbage. + - fixed some weirdness in the ev_embed documentation. + +3.49 Wed Nov 19 11:26:53 CET 2008 + - ev_stat watchers will now use inotify as a mere hint on + kernels <2.6.25, or if the filesystem is not in the + "known to be good" list. + - better mingw32 compatibility (it's not as borked as native win32) + (analysed by Roger Pack). + - include stdio.h in the example program, as too many people are + confused by the weird C language otherwise. I guess the next thing + I get told is that the "..." ellipses in the examples don't compile + with their C compiler. + +3.48 Thu Oct 30 09:02:37 CET 2008 + - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll + backend by assuming the kernel event mask hasn't changed if + ADD fails with EEXIST. + - work around spurious event notification bugs in epoll by using + a 32-bit generation counter. recreate kernel state if we receive + spurious notifications or unwanted events. this is very costly, + but I didn't come up with this horrible design. + - use memset to initialise most arrays now and do away with the + init functions. + - expand time-out strategies into a "Be smart about timeouts" section. + - drop the "struct" from all ev_watcher declarations in the + documentation and did other clarifications (yeah, it was a mistake + to have a struct AND a function called ev_loop). + - fix a bug where ev_default would not initialise the default + loop again after it was destroyed with ev_default_destroy. + - rename syserr to ev_syserr to avoid name clashes when embedding, + do similar changes for event.c. + +3.45 Tue Oct 21 21:59:26 CEST 2008 + - disable inotify usage on linux <2.6.25, as it is broken + (reported by Yoann Vandoorselaere). + - ev_stat erroneously would try to add inotify watchers + even when inotify wasn't available (this should only + have a performance impact). + - ev_once now passes both timeout and io to the callback if both + occur concurrently, instead of giving timeouts precedence. + - disable EV_USE_INOTIFY when sys/inotify.h is too old. + +3.44 Mon Sep 29 05:18:39 CEST 2008 + - embed watchers now automatically invoke ev_loop_fork on the + embedded loop when the parent loop forks. + - new function: ev_now_update (loop). + - verify_watcher was not marked static. + - improve the "associating..." manpage section. + - documentation tweaks here and there. + +3.43 Sun Jul 6 05:34:41 CEST 2008 + - include more include files on windows to get struct _stati64 + (reported by Chris Hulbert, but doesn't quite fix his issue). + - add missing #include in ev.c on windows (reported by + Matt Tolton). + +3.42 Tue Jun 17 12:12:07 CEST 2008 + - work around yet another windows bug: FD_SET actually adds fd's + multiple times to the fd_*SET*, despite official MSN docs claiming + otherwise. Reported and well-analysed by Matt Tolton. + - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile + (reported any analysed by Chris Hulbert). + - fix a bug in ev_ebadf (this function is only used to catch + programming errors in the libev user). reported by Matt Tolton. + - fix a bug in fd_intern on win32 (could lead to compile errors + under some circumstances, but would work correctly if it compiles). + reported by Matt Tolton. + - (try to) work around missing lstat on windows. + - pass in the write fd set as except fd set under windows. windows + is so uncontrollably lame that it requires this. this means that + switching off oobinline is not supported (but tcp/ip doesn't + have oob, so that would be stupid anyways. + - use posix module symbol to auto-detect monotonic clock presence + and some other default values. + +3.41 Fri May 23 18:42:54 CEST 2008 + - work around an obscure bug in winsocket select: if you + provide only empty fd sets then select returns WSAEINVAL. how sucky. + - improve timer scheduling stability and reduce use of time_epsilon. + - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces + codesize and makes for better cache-efficiency. + - use 3-based 4-heap for !EV_MINIMAL. this makes better use + of cpu cache lines and gives better growth behaviour than + 2-based heaps. + - cache timestamp within heap for !EV_MINIMAL, to avoid random + memory accesses. + - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT. + - fix a potential aliasing issue in ev_timer_again. + - add/document ev_periodic_at, retract direct access to ->at. + - improve ev_stat docs. + - add portability requirements section. + - fix manpage headers etc. + - normalise WSA error codes to lower range on windows. + - add consistency check code that can be called automatically + or on demand to check for internal structures (ev_loop_verify). + +3.31 Wed Apr 16 20:45:04 CEST 2008 + - added last minute fix for ev_poll.c by Brandon Black. + +3.3 Wed Apr 16 19:04:10 CEST 2008 + - event_base_loopexit should return 0 on success + (W.C.A. Wijngaards). + - added linux eventfd support. + - try to autodetect epoll and inotify support + by libc header version if not using autoconf. + - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_. + - declare functions defined in ev.h as inline if + C99 or gcc are available. + - enable inlining with gcc versions 2 and 3. + - work around broken poll implementations potentially + not clearing revents field in ev_poll (Brandon Black) + (no such systems are known at this time). + - work around a bug in realloc on openbsd and darwin, + also makes the erroneous valgrind complaints + go away (noted by various people). + - fix ev_async_pending, add c++ wrapper for ev_async + (based on patch sent by Johannes Deisenhofer). + - add sensible set method to ev::embed. + - made integer constants type int in ev.h. + +3.2 Wed Apr 2 17:11:19 CEST 2008 + - fix a 64 bit overflow issue in the select backend, + by using fd_mask instead of int for the mask. + - rename internal sighandler to avoid clash with very old perls. + - entering ev_loop will not clear the ONESHOT or NONBLOCKING + flags of any outer loops anymore. + - add ev_async_pending. + +3.1 Thu Mar 13 13:45:22 CET 2008 + - implement ev_async watchers. + - only initialise signal pipe on demand. + - make use of sig_atomic_t configurable. + - improved documentation. + +3.0 Mon Jan 28 13:14:47 CET 2008 + - API/ABI bump to version 3.0. + - ev++.h includes "ev.h" by default now, not . + - slightly improved documentation. + - speed up signal detection after a fork. + - only optionally return trace status changed in ev_child + watchers. + - experimental (and undocumented) loop wrappers for ev++.h. + +2.01 Tue Dec 25 08:04:41 CET 2007 + - separate Changes file. + - fix ev_path_set => ev_stat_set typo. + - remove event_compat.h from the libev tarball. + - change how include files are found. + - doc updates. + - update licenses, explicitly allow for GPL relicensing. + +2.0 Sat Dec 22 17:47:03 CET 2007 + - new ev_sleep, ev_set_(io|timeout)_collect_interval. + - removed epoll from embeddable fd set. + - fix embed watchers. + - renamed ev_embed.loop to other. + - added exported Symbol tables. + - undefine member wrapper macros at the end of ev.c. + - respect EV_H in ev++.h. + +1.86 Tue Dec 18 02:36:57 CET 2007 + - fix memleak on loop destroy (not relevant for perl). + +1.85 Fri Dec 14 20:32:40 CET 2007 + - fix some aliasing issues w.r.t. timers and periodics + (not relevant for perl). + +(for historic versions refer to EV/Changes, found in the Perl interface) + +0.1 Wed Oct 31 21:31:48 CET 2007 + - original version; hacked together in <24h. + diff --git a/shadowsocksr-libev/src/libev/LICENSE b/shadowsocksr-libev/src/libev/LICENSE new file mode 100644 index 000000000..2fdabd48a --- /dev/null +++ b/shadowsocksr-libev/src/libev/LICENSE @@ -0,0 +1,37 @@ +All files in libev are +Copyright (c)2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials provided + with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +Alternatively, the contents of this package may be used under the terms +of the GNU General Public License ("GPL") version 2 or any later version, +in which case the provisions of the GPL are applicable instead of the +above. If you wish to allow the use of your version of this package only +under the terms of the GPL and not to allow others to use your version of +this file under the BSD license, indicate your decision by deleting the +provisions above and replace them with the notice and other provisions +required by the GPL in this and the other files of this package. If you do +not delete the provisions above, a recipient may use your version of this +file under either the BSD or the GPL. diff --git a/shadowsocksr-libev/src/libev/Makefile.am b/shadowsocksr-libev/src/libev/Makefile.am new file mode 100644 index 000000000..32d1339c9 --- /dev/null +++ b/shadowsocksr-libev/src/libev/Makefile.am @@ -0,0 +1,20 @@ +AUTOMAKE_OPTIONS = foreign + +VERSION_INFO = 4:0:0 + +EXTRA_DIST = LICENSE Changes libev.m4 autogen.sh \ + ev_vars.h ev_wrap.h \ + ev_epoll.c ev_select.c ev_poll.c ev_kqueue.c ev_port.c ev_win32.c \ + ev.3 ev.pod Symbols.ev Symbols.event + +noinst_MANS = ev.3 + +noinst_HEADERS = ev.h ev++.h event.h + +noinst_LTLIBRARIES = libev.la + +libev_la_SOURCES = ev.c event.c +libev_la_LDFLAGS = -version-info $(VERSION_INFO) + +ev.3: ev.pod + pod2man -n LIBEV -r "libev-$(VERSION)" -c "libev - high performance full featured event loop" -s3 <$< >$@ diff --git a/shadowsocksr-libev/src/libev/Makefile.in b/shadowsocksr-libev/src/libev/Makefile.in new file mode 100644 index 000000000..c85b800d0 --- /dev/null +++ b/shadowsocksr-libev/src/libev/Makefile.in @@ -0,0 +1,626 @@ +# Makefile.in generated by automake 1.15 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2014 Free Software Foundation, Inc. + +# This Makefile.in is free software; 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And also smaller. Yay. + + Some of the specialties of libev not commonly found elsewhere are: + + - extensive and detailed, readable documentation (not doxygen garbage). + - fully supports fork, can detect fork in various ways and automatically + re-arms kernel mechanisms that do not support fork. + - highly optimised select, poll, epoll, kqueue and event ports backends. + - filesystem object (path) watching (with optional linux inotify support). + - wallclock-based times (using absolute time, cron-like). + - relative timers/timeouts (handle time jumps). + - fast intra-thread communication between multiple + event loops (with optional fast linux eventfd backend). + - extremely easy to embed (fully documented, no dependencies, + autoconf supported but optional). + - very small codebase, no bloated library, simple code. + - fully extensible by being able to plug into the event loop, + integrate other event loops, integrate other event loop users. + - very little memory use (small watchers, small event loop data). + - optional C++ interface allowing method and function callbacks + at no extra memory or runtime overhead. + - optional Perl interface with similar characteristics (capable + of running Glib/Gtk2 on libev). + - support for other languages (multiple C++ interfaces, D, Ruby, + Python) available from third-parties. + + Examples of programs that embed libev: the EV perl module, node.js, + auditd, rxvt-unicode, gvpe (GNU Virtual Private Ethernet), the + Deliantra MMORPG server (http://www.deliantra.net/), Rubinius (a + next-generation Ruby VM), the Ebb web server, the Rev event toolkit. + + +CONTRIBUTORS + + libev was written and designed by Marc Lehmann and Emanuele Giaquinta. + + The following people sent in patches or made other noteworthy + contributions to the design (for minor patches, see the Changes + file. If I forgot to include you, please shout at me, it was an + accident): + + W.C.A. Wijngaards + Christopher Layne + Chris Brody + diff --git a/shadowsocksr-libev/src/libev/Symbols.ev b/shadowsocksr-libev/src/libev/Symbols.ev new file mode 100644 index 000000000..7a29a75cb --- /dev/null +++ b/shadowsocksr-libev/src/libev/Symbols.ev @@ -0,0 +1,73 @@ +ev_async_send +ev_async_start +ev_async_stop +ev_backend +ev_break +ev_check_start +ev_check_stop +ev_child_start +ev_child_stop +ev_cleanup_start +ev_cleanup_stop +ev_clear_pending +ev_default_loop +ev_default_loop_ptr +ev_depth +ev_embed_start +ev_embed_stop +ev_embed_sweep +ev_embeddable_backends +ev_feed_event +ev_feed_fd_event +ev_feed_signal +ev_feed_signal_event +ev_fork_start +ev_fork_stop +ev_idle_start +ev_idle_stop +ev_invoke +ev_invoke_pending +ev_io_start +ev_io_stop +ev_iteration +ev_loop_destroy +ev_loop_fork +ev_loop_new +ev_now +ev_now_update +ev_once +ev_pending_count +ev_periodic_again +ev_periodic_start +ev_periodic_stop +ev_prepare_start +ev_prepare_stop +ev_recommended_backends +ev_ref +ev_resume +ev_run +ev_set_allocator +ev_set_invoke_pending_cb +ev_set_io_collect_interval +ev_set_loop_release_cb +ev_set_syserr_cb +ev_set_timeout_collect_interval +ev_set_userdata +ev_signal_start +ev_signal_stop +ev_sleep +ev_stat_start +ev_stat_stat +ev_stat_stop +ev_supported_backends +ev_suspend +ev_time +ev_timer_again +ev_timer_remaining +ev_timer_start +ev_timer_stop +ev_unref +ev_userdata +ev_verify +ev_version_major +ev_version_minor diff --git a/shadowsocksr-libev/src/libev/Symbols.event b/shadowsocksr-libev/src/libev/Symbols.event new file mode 100644 index 000000000..799d4246e --- /dev/null +++ b/shadowsocksr-libev/src/libev/Symbols.event @@ -0,0 +1,24 @@ +event_active +event_add +event_base_dispatch +event_base_free +event_base_get_method +event_base_loop +event_base_loopexit +event_base_new +event_base_once +event_base_priority_init +event_base_set +event_del +event_dispatch +event_get_callback +event_get_method +event_get_version +event_init +event_loop +event_loopexit +event_once +event_pending +event_priority_init +event_priority_set +event_set diff --git a/shadowsocksr-libev/src/libev/aclocal.m4 b/shadowsocksr-libev/src/libev/aclocal.m4 new file mode 100644 index 000000000..186cbf17c --- /dev/null +++ b/shadowsocksr-libev/src/libev/aclocal.m4 @@ -0,0 +1,9787 @@ +# generated automatically by aclocal 1.14.1 -*- Autoconf -*- + +# Copyright (C) 1996-2013 Free Software Foundation, Inc. + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) +m4_ifndef([AC_AUTOCONF_VERSION], + [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl +m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, +[m4_warning([this file was generated for autoconf 2.69. +You have another version of autoconf. It may work, but is not guaranteed to. +If you have problems, you may need to regenerate the build system entirely. +To do so, use the procedure documented by the package, typically 'autoreconf'.])]) + +# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*- +# +# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, +# 2006, 2007, 2008, 2009, 2010, 2011 Free Software +# Foundation, Inc. +# Written by Gordon Matzigkeit, 1996 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +m4_define([_LT_COPYING], [dnl +# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, +# 2006, 2007, 2008, 2009, 2010, 2011 Free Software +# Foundation, Inc. +# Written by Gordon Matzigkeit, 1996 +# +# This file is part of GNU Libtool. +# +# GNU Libtool is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# As a special exception to the GNU General Public License, +# if you distribute this file as part of a program or library that +# is built using GNU Libtool, you may include this file under the +# same distribution terms that you use for the rest of that program. +# +# GNU Libtool is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Libtool; see the file COPYING. If not, a copy +# can be downloaded from http://www.gnu.org/licenses/gpl.html, or +# obtained by writing to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +]) + +# serial 57 LT_INIT + + +# LT_PREREQ(VERSION) +# ------------------ +# Complain and exit if this libtool version is less that VERSION. +m4_defun([LT_PREREQ], +[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1, + [m4_default([$3], + [m4_fatal([Libtool version $1 or higher is required], + 63)])], + [$2])]) + + +# _LT_CHECK_BUILDDIR +# ------------------ +# Complain if the absolute build directory name contains unusual characters +m4_defun([_LT_CHECK_BUILDDIR], +[case `pwd` in + *\ * | *\ *) + AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;; +esac +]) + + +# LT_INIT([OPTIONS]) +# ------------------ +AC_DEFUN([LT_INIT], +[AC_PREREQ([2.58])dnl We use AC_INCLUDES_DEFAULT +AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl +AC_BEFORE([$0], [LT_LANG])dnl +AC_BEFORE([$0], [LT_OUTPUT])dnl +AC_BEFORE([$0], [LTDL_INIT])dnl +m4_require([_LT_CHECK_BUILDDIR])dnl + +dnl Autoconf doesn't catch unexpanded LT_ macros by default: +m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl +m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl +dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4 +dnl unless we require an AC_DEFUNed macro: +AC_REQUIRE([LTOPTIONS_VERSION])dnl +AC_REQUIRE([LTSUGAR_VERSION])dnl +AC_REQUIRE([LTVERSION_VERSION])dnl +AC_REQUIRE([LTOBSOLETE_VERSION])dnl +m4_require([_LT_PROG_LTMAIN])dnl + +_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}]) + +dnl Parse OPTIONS +_LT_SET_OPTIONS([$0], [$1]) + +# This can be used to rebuild libtool when needed +LIBTOOL_DEPS="$ltmain" + +# Always use our own libtool. +LIBTOOL='$(SHELL) $(top_builddir)/libtool' +AC_SUBST(LIBTOOL)dnl + +_LT_SETUP + +# Only expand once: +m4_define([LT_INIT]) +])# LT_INIT + +# Old names: +AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT]) +AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_PROG_LIBTOOL], []) +dnl AC_DEFUN([AM_PROG_LIBTOOL], []) + + +# _LT_CC_BASENAME(CC) +# ------------------- +# Calculate cc_basename. Skip known compiler wrappers and cross-prefix. +m4_defun([_LT_CC_BASENAME], +[for cc_temp in $1""; do + case $cc_temp in + compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;; + distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;; + \-*) ;; + *) break;; + esac +done +cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` +]) + + +# _LT_FILEUTILS_DEFAULTS +# ---------------------- +# It is okay to use these file commands and assume they have been set +# sensibly after `m4_require([_LT_FILEUTILS_DEFAULTS])'. +m4_defun([_LT_FILEUTILS_DEFAULTS], +[: ${CP="cp -f"} +: ${MV="mv -f"} +: ${RM="rm -f"} +])# _LT_FILEUTILS_DEFAULTS + + +# _LT_SETUP +# --------- +m4_defun([_LT_SETUP], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl + +_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl +dnl +_LT_DECL([], [host_alias], [0], [The host system])dnl +_LT_DECL([], [host], [0])dnl +_LT_DECL([], [host_os], [0])dnl +dnl +_LT_DECL([], [build_alias], [0], [The build system])dnl +_LT_DECL([], [build], [0])dnl +_LT_DECL([], [build_os], [0])dnl +dnl +AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([LT_PATH_LD])dnl +AC_REQUIRE([LT_PATH_NM])dnl +dnl +AC_REQUIRE([AC_PROG_LN_S])dnl +test -z "$LN_S" && LN_S="ln -s" +_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl +dnl +AC_REQUIRE([LT_CMD_MAX_LEN])dnl +_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl +_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl +dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_CHECK_SHELL_FEATURES])dnl +m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl +m4_require([_LT_CMD_RELOAD])dnl +m4_require([_LT_CHECK_MAGIC_METHOD])dnl +m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl +m4_require([_LT_CMD_OLD_ARCHIVE])dnl +m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl +m4_require([_LT_WITH_SYSROOT])dnl + +_LT_CONFIG_LIBTOOL_INIT([ +# See if we are running on zsh, and set the options which allow our +# commands through without removal of \ escapes INIT. +if test -n "\${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST +fi +]) +if test -n "${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST +fi + +_LT_CHECK_OBJDIR + +m4_require([_LT_TAG_COMPILER])dnl + +case $host_os in +aix3*) + # AIX sometimes has problems with the GCC collect2 program. For some + # reason, if we set the COLLECT_NAMES environment variable, the problems + # vanish in a puff of smoke. + if test "X${COLLECT_NAMES+set}" != Xset; then + COLLECT_NAMES= + export COLLECT_NAMES + fi + ;; +esac + +# Global variables: +ofile=libtool +can_build_shared=yes + +# All known linkers require a `.a' archive for static linking (except MSVC, +# which needs '.lib'). +libext=a + +with_gnu_ld="$lt_cv_prog_gnu_ld" + +old_CC="$CC" +old_CFLAGS="$CFLAGS" + +# Set sane defaults for various variables +test -z "$CC" && CC=cc +test -z "$LTCC" && LTCC=$CC +test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS +test -z "$LD" && LD=ld +test -z "$ac_objext" && ac_objext=o + +_LT_CC_BASENAME([$compiler]) + +# Only perform the check for file, if the check method requires it +test -z "$MAGIC_CMD" && MAGIC_CMD=file +case $deplibs_check_method in +file_magic*) + if test "$file_magic_cmd" = '$MAGIC_CMD'; then + _LT_PATH_MAGIC + fi + ;; +esac + +# Use C for the default configuration in the libtool script +LT_SUPPORTED_TAG([CC]) +_LT_LANG_C_CONFIG +_LT_LANG_DEFAULT_CONFIG +_LT_CONFIG_COMMANDS +])# _LT_SETUP + + +# _LT_PREPARE_SED_QUOTE_VARS +# -------------------------- +# Define a few sed substitution that help us do robust quoting. +m4_defun([_LT_PREPARE_SED_QUOTE_VARS], +[# Backslashify metacharacters that are still active within +# double-quoted strings. +sed_quote_subst='s/\([["`$\\]]\)/\\\1/g' + +# Same as above, but do not quote variable references. +double_quote_subst='s/\([["`\\]]\)/\\\1/g' + +# Sed substitution to delay expansion of an escaped shell variable in a +# double_quote_subst'ed string. +delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g' + +# Sed substitution to delay expansion of an escaped single quote. +delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g' + +# Sed substitution to avoid accidental globbing in evaled expressions +no_glob_subst='s/\*/\\\*/g' +]) + +# _LT_PROG_LTMAIN +# --------------- +# Note that this code is called both from `configure', and `config.status' +# now that we use AC_CONFIG_COMMANDS to generate libtool. Notably, +# `config.status' has no value for ac_aux_dir unless we are using Automake, +# so we pass a copy along to make sure it has a sensible value anyway. +m4_defun([_LT_PROG_LTMAIN], +[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl +_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir']) +ltmain="$ac_aux_dir/ltmain.sh" +])# _LT_PROG_LTMAIN + + + +# So that we can recreate a full libtool script including additional +# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS +# in macros and then make a single call at the end using the `libtool' +# label. + + +# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS]) +# ---------------------------------------- +# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later. +m4_define([_LT_CONFIG_LIBTOOL_INIT], +[m4_ifval([$1], + [m4_append([_LT_OUTPUT_LIBTOOL_INIT], + [$1 +])])]) + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_INIT]) + + +# _LT_CONFIG_LIBTOOL([COMMANDS]) +# ------------------------------ +# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later. +m4_define([_LT_CONFIG_LIBTOOL], +[m4_ifval([$1], + [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS], + [$1 +])])]) + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS]) + + +# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS]) +# ----------------------------------------------------- +m4_defun([_LT_CONFIG_SAVE_COMMANDS], +[_LT_CONFIG_LIBTOOL([$1]) +_LT_CONFIG_LIBTOOL_INIT([$2]) +]) + + +# _LT_FORMAT_COMMENT([COMMENT]) +# ----------------------------- +# Add leading comment marks to the start of each line, and a trailing +# full-stop to the whole comment if one is not present already. +m4_define([_LT_FORMAT_COMMENT], +[m4_ifval([$1], [ +m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])], + [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.]) +)]) + + + + + +# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?]) +# ------------------------------------------------------------------- +# CONFIGNAME is the name given to the value in the libtool script. +# VARNAME is the (base) name used in the configure script. +# VALUE may be 0, 1 or 2 for a computed quote escaped value based on +# VARNAME. Any other value will be used directly. +m4_define([_LT_DECL], +[lt_if_append_uniq([lt_decl_varnames], [$2], [, ], + [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name], + [m4_ifval([$1], [$1], [$2])]) + lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3]) + m4_ifval([$4], + [lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])]) + lt_dict_add_subkey([lt_decl_dict], [$2], + [tagged?], [m4_ifval([$5], [yes], [no])])]) +]) + + +# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION]) +# -------------------------------------------------------- +m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])]) + + +# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...]) +# ------------------------------------------------ +m4_define([lt_decl_tag_varnames], +[_lt_decl_filter([tagged?], [yes], $@)]) + + +# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..]) +# --------------------------------------------------------- +m4_define([_lt_decl_filter], +[m4_case([$#], + [0], [m4_fatal([$0: too few arguments: $#])], + [1], [m4_fatal([$0: too few arguments: $#: $1])], + [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)], + [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)], + [lt_dict_filter([lt_decl_dict], $@)])[]dnl +]) + + +# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...]) +# -------------------------------------------------- +m4_define([lt_decl_quote_varnames], +[_lt_decl_filter([value], [1], $@)]) + + +# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...]) +# --------------------------------------------------- +m4_define([lt_decl_dquote_varnames], +[_lt_decl_filter([value], [2], $@)]) + + +# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...]) +# --------------------------------------------------- +m4_define([lt_decl_varnames_tagged], +[m4_assert([$# <= 2])dnl +_$0(m4_quote(m4_default([$1], [[, ]])), + m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]), + m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))]) +m4_define([_lt_decl_varnames_tagged], +[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])]) + + +# lt_decl_all_varnames([SEPARATOR], [VARNAME1...]) +# ------------------------------------------------ +m4_define([lt_decl_all_varnames], +[_$0(m4_quote(m4_default([$1], [[, ]])), + m4_if([$2], [], + m4_quote(lt_decl_varnames), + m4_quote(m4_shift($@))))[]dnl +]) +m4_define([_lt_decl_all_varnames], +[lt_join($@, lt_decl_varnames_tagged([$1], + lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl +]) + + +# _LT_CONFIG_STATUS_DECLARE([VARNAME]) +# ------------------------------------ +# Quote a variable value, and forward it to `config.status' so that its +# declaration there will have the same value as in `configure'. VARNAME +# must have a single quote delimited value for this to work. +m4_define([_LT_CONFIG_STATUS_DECLARE], +[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`']) + + +# _LT_CONFIG_STATUS_DECLARATIONS +# ------------------------------ +# We delimit libtool config variables with single quotes, so when +# we write them to config.status, we have to be sure to quote all +# embedded single quotes properly. In configure, this macro expands +# each variable declared with _LT_DECL (and _LT_TAGDECL) into: +# +# ='`$ECHO "$" | $SED "$delay_single_quote_subst"`' +m4_defun([_LT_CONFIG_STATUS_DECLARATIONS], +[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames), + [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])]) + + +# _LT_LIBTOOL_TAGS +# ---------------- +# Output comment and list of tags supported by the script +m4_defun([_LT_LIBTOOL_TAGS], +[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl +available_tags="_LT_TAGS"dnl +]) + + +# _LT_LIBTOOL_DECLARE(VARNAME, [TAG]) +# ----------------------------------- +# Extract the dictionary values for VARNAME (optionally with TAG) and +# expand to a commented shell variable setting: +# +# # Some comment about what VAR is for. +# visible_name=$lt_internal_name +m4_define([_LT_LIBTOOL_DECLARE], +[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], + [description])))[]dnl +m4_pushdef([_libtool_name], + m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl +m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])), + [0], [_libtool_name=[$]$1], + [1], [_libtool_name=$lt_[]$1], + [2], [_libtool_name=$lt_[]$1], + [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl +m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl +]) + + +# _LT_LIBTOOL_CONFIG_VARS +# ----------------------- +# Produce commented declarations of non-tagged libtool config variables +# suitable for insertion in the LIBTOOL CONFIG section of the `libtool' +# script. Tagged libtool config variables (even for the LIBTOOL CONFIG +# section) are produced by _LT_LIBTOOL_TAG_VARS. +m4_defun([_LT_LIBTOOL_CONFIG_VARS], +[m4_foreach([_lt_var], + m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)), + [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])]) + + +# _LT_LIBTOOL_TAG_VARS(TAG) +# ------------------------- +m4_define([_LT_LIBTOOL_TAG_VARS], +[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames), + [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])]) + + +# _LT_TAGVAR(VARNAME, [TAGNAME]) +# ------------------------------ +m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])]) + + +# _LT_CONFIG_COMMANDS +# ------------------- +# Send accumulated output to $CONFIG_STATUS. Thanks to the lists of +# variables for single and double quote escaping we saved from calls +# to _LT_DECL, we can put quote escaped variables declarations +# into `config.status', and then the shell code to quote escape them in +# for loops in `config.status'. Finally, any additional code accumulated +# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded. +m4_defun([_LT_CONFIG_COMMANDS], +[AC_PROVIDE_IFELSE([LT_OUTPUT], + dnl If the libtool generation code has been placed in $CONFIG_LT, + dnl instead of duplicating it all over again into config.status, + dnl then we will have config.status run $CONFIG_LT later, so it + dnl needs to know what name is stored there: + [AC_CONFIG_COMMANDS([libtool], + [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])], + dnl If the libtool generation code is destined for config.status, + dnl expand the accumulated commands and init code now: + [AC_CONFIG_COMMANDS([libtool], + [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])]) +])#_LT_CONFIG_COMMANDS + + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT], +[ + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +sed_quote_subst='$sed_quote_subst' +double_quote_subst='$double_quote_subst' +delay_variable_subst='$delay_variable_subst' +_LT_CONFIG_STATUS_DECLARATIONS +LTCC='$LTCC' +LTCFLAGS='$LTCFLAGS' +compiler='$compiler_DEFAULT' + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$[]1 +_LTECHO_EOF' +} + +# Quote evaled strings. +for var in lt_decl_all_varnames([[ \ +]], lt_decl_quote_varnames); do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[[\\\\\\\`\\"\\\$]]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +# Double-quote double-evaled strings. +for var in lt_decl_all_varnames([[ \ +]], lt_decl_dquote_varnames); do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[[\\\\\\\`\\"\\\$]]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +_LT_OUTPUT_LIBTOOL_INIT +]) + +# _LT_GENERATED_FILE_INIT(FILE, [COMMENT]) +# ------------------------------------ +# Generate a child script FILE with all initialization necessary to +# reuse the environment learned by the parent script, and make the +# file executable. If COMMENT is supplied, it is inserted after the +# `#!' sequence but before initialization text begins. After this +# macro, additional text can be appended to FILE to form the body of +# the child script. The macro ends with non-zero status if the +# file could not be fully written (such as if the disk is full). +m4_ifdef([AS_INIT_GENERATED], +[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])], +[m4_defun([_LT_GENERATED_FILE_INIT], +[m4_require([AS_PREPARE])]dnl +[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl +[lt_write_fail=0 +cat >$1 <<_ASEOF || lt_write_fail=1 +#! $SHELL +# Generated by $as_me. +$2 +SHELL=\${CONFIG_SHELL-$SHELL} +export SHELL +_ASEOF +cat >>$1 <<\_ASEOF || lt_write_fail=1 +AS_SHELL_SANITIZE +_AS_PREPARE +exec AS_MESSAGE_FD>&1 +_ASEOF +test $lt_write_fail = 0 && chmod +x $1[]dnl +m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT + +# LT_OUTPUT +# --------- +# This macro allows early generation of the libtool script (before +# AC_OUTPUT is called), incase it is used in configure for compilation +# tests. +AC_DEFUN([LT_OUTPUT], +[: ${CONFIG_LT=./config.lt} +AC_MSG_NOTICE([creating $CONFIG_LT]) +_LT_GENERATED_FILE_INIT(["$CONFIG_LT"], +[# Run this file to recreate a libtool stub with the current configuration.]) + +cat >>"$CONFIG_LT" <<\_LTEOF +lt_cl_silent=false +exec AS_MESSAGE_LOG_FD>>config.log +{ + echo + AS_BOX([Running $as_me.]) +} >&AS_MESSAGE_LOG_FD + +lt_cl_help="\ +\`$as_me' creates a local libtool stub from the current configuration, +for use in further configure time tests before the real libtool is +generated. + +Usage: $[0] [[OPTIONS]] + + -h, --help print this help, then exit + -V, --version print version number, then exit + -q, --quiet do not print progress messages + -d, --debug don't remove temporary files + +Report bugs to ." + +lt_cl_version="\ +m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl +m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]) +configured by $[0], generated by m4_PACKAGE_STRING. + +Copyright (C) 2011 Free Software Foundation, Inc. +This config.lt script is free software; the Free Software Foundation +gives unlimited permision to copy, distribute and modify it." + +while test $[#] != 0 +do + case $[1] in + --version | --v* | -V ) + echo "$lt_cl_version"; exit 0 ;; + --help | --h* | -h ) + echo "$lt_cl_help"; exit 0 ;; + --debug | --d* | -d ) + debug=: ;; + --quiet | --q* | --silent | --s* | -q ) + lt_cl_silent=: ;; + + -*) AC_MSG_ERROR([unrecognized option: $[1] +Try \`$[0] --help' for more information.]) ;; + + *) AC_MSG_ERROR([unrecognized argument: $[1] +Try \`$[0] --help' for more information.]) ;; + esac + shift +done + +if $lt_cl_silent; then + exec AS_MESSAGE_FD>/dev/null +fi +_LTEOF + +cat >>"$CONFIG_LT" <<_LTEOF +_LT_OUTPUT_LIBTOOL_COMMANDS_INIT +_LTEOF + +cat >>"$CONFIG_LT" <<\_LTEOF +AC_MSG_NOTICE([creating $ofile]) +_LT_OUTPUT_LIBTOOL_COMMANDS +AS_EXIT(0) +_LTEOF +chmod +x "$CONFIG_LT" + +# configure is writing to config.log, but config.lt does its own redirection, +# appending to config.log, which fails on DOS, as config.log is still kept +# open by configure. Here we exec the FD to /dev/null, effectively closing +# config.log, so it can be properly (re)opened and appended to by config.lt. +lt_cl_success=: +test "$silent" = yes && + lt_config_lt_args="$lt_config_lt_args --quiet" +exec AS_MESSAGE_LOG_FD>/dev/null +$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false +exec AS_MESSAGE_LOG_FD>>config.log +$lt_cl_success || AS_EXIT(1) +])# LT_OUTPUT + + +# _LT_CONFIG(TAG) +# --------------- +# If TAG is the built-in tag, create an initial libtool script with a +# default configuration from the untagged config vars. Otherwise add code +# to config.status for appending the configuration named by TAG from the +# matching tagged config vars. +m4_defun([_LT_CONFIG], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +_LT_CONFIG_SAVE_COMMANDS([ + m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl + m4_if(_LT_TAG, [C], [ + # See if we are running on zsh, and set the options which allow our + # commands through without removal of \ escapes. + if test -n "${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST + fi + + cfgfile="${ofile}T" + trap "$RM \"$cfgfile\"; exit 1" 1 2 15 + $RM "$cfgfile" + + cat <<_LT_EOF >> "$cfgfile" +#! $SHELL + +# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services. +# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION +# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`: +# NOTE: Changes made to this file will be lost: look at ltmain.sh. +# +_LT_COPYING +_LT_LIBTOOL_TAGS + +# ### BEGIN LIBTOOL CONFIG +_LT_LIBTOOL_CONFIG_VARS +_LT_LIBTOOL_TAG_VARS +# ### END LIBTOOL CONFIG + +_LT_EOF + + case $host_os in + aix3*) + cat <<\_LT_EOF >> "$cfgfile" +# AIX sometimes has problems with the GCC collect2 program. For some +# reason, if we set the COLLECT_NAMES environment variable, the problems +# vanish in a puff of smoke. +if test "X${COLLECT_NAMES+set}" != Xset; then + COLLECT_NAMES= + export COLLECT_NAMES +fi +_LT_EOF + ;; + esac + + _LT_PROG_LTMAIN + + # We use sed instead of cat because bash on DJGPP gets confused if + # if finds mixed CR/LF and LF-only lines. Since sed operates in + # text mode, it properly converts lines to CR/LF. This bash problem + # is reportedly fixed, but why not run on old versions too? + sed '$q' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + _LT_PROG_REPLACE_SHELLFNS + + mv -f "$cfgfile" "$ofile" || + (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile") + chmod +x "$ofile" +], +[cat <<_LT_EOF >> "$ofile" + +dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded +dnl in a comment (ie after a #). +# ### BEGIN LIBTOOL TAG CONFIG: $1 +_LT_LIBTOOL_TAG_VARS(_LT_TAG) +# ### END LIBTOOL TAG CONFIG: $1 +_LT_EOF +])dnl /m4_if +], +[m4_if([$1], [], [ + PACKAGE='$PACKAGE' + VERSION='$VERSION' + TIMESTAMP='$TIMESTAMP' + RM='$RM' + ofile='$ofile'], []) +])dnl /_LT_CONFIG_SAVE_COMMANDS +])# _LT_CONFIG + + +# LT_SUPPORTED_TAG(TAG) +# --------------------- +# Trace this macro to discover what tags are supported by the libtool +# --tag option, using: +# autoconf --trace 'LT_SUPPORTED_TAG:$1' +AC_DEFUN([LT_SUPPORTED_TAG], []) + + +# C support is built-in for now +m4_define([_LT_LANG_C_enabled], []) +m4_define([_LT_TAGS], []) + + +# LT_LANG(LANG) +# ------------- +# Enable libtool support for the given language if not already enabled. +AC_DEFUN([LT_LANG], +[AC_BEFORE([$0], [LT_OUTPUT])dnl +m4_case([$1], + [C], [_LT_LANG(C)], + [C++], [_LT_LANG(CXX)], + [Go], [_LT_LANG(GO)], + [Java], [_LT_LANG(GCJ)], + [Fortran 77], [_LT_LANG(F77)], + [Fortran], [_LT_LANG(FC)], + [Windows Resource], [_LT_LANG(RC)], + [m4_ifdef([_LT_LANG_]$1[_CONFIG], + [_LT_LANG($1)], + [m4_fatal([$0: unsupported language: "$1"])])])dnl +])# LT_LANG + + +# _LT_LANG(LANGNAME) +# ------------------ +m4_defun([_LT_LANG], +[m4_ifdef([_LT_LANG_]$1[_enabled], [], + [LT_SUPPORTED_TAG([$1])dnl + m4_append([_LT_TAGS], [$1 ])dnl + m4_define([_LT_LANG_]$1[_enabled], [])dnl + _LT_LANG_$1_CONFIG($1)])dnl +])# _LT_LANG + + +m4_ifndef([AC_PROG_GO], [ +# NOTE: This macro has been submitted for inclusion into # +# GNU Autoconf as AC_PROG_GO. When it is available in # +# a released version of Autoconf we should remove this # +# macro and use it instead. # +m4_defun([AC_PROG_GO], +[AC_LANG_PUSH(Go)dnl +AC_ARG_VAR([GOC], [Go compiler command])dnl +AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl +_AC_ARG_VAR_LDFLAGS()dnl +AC_CHECK_TOOL(GOC, gccgo) +if test -z "$GOC"; then + if test -n "$ac_tool_prefix"; then + AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo]) + fi +fi +if test -z "$GOC"; then + AC_CHECK_PROG(GOC, gccgo, gccgo, false) +fi +])#m4_defun +])#m4_ifndef + + +# _LT_LANG_DEFAULT_CONFIG +# ----------------------- +m4_defun([_LT_LANG_DEFAULT_CONFIG], +[AC_PROVIDE_IFELSE([AC_PROG_CXX], + [LT_LANG(CXX)], + [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])]) + +AC_PROVIDE_IFELSE([AC_PROG_F77], + [LT_LANG(F77)], + [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])]) + +AC_PROVIDE_IFELSE([AC_PROG_FC], + [LT_LANG(FC)], + [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])]) + +dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal +dnl pulling things in needlessly. +AC_PROVIDE_IFELSE([AC_PROG_GCJ], + [LT_LANG(GCJ)], + [AC_PROVIDE_IFELSE([A][M_PROG_GCJ], + [LT_LANG(GCJ)], + [AC_PROVIDE_IFELSE([LT_PROG_GCJ], + [LT_LANG(GCJ)], + [m4_ifdef([AC_PROG_GCJ], + [m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])]) + m4_ifdef([A][M_PROG_GCJ], + [m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])]) + m4_ifdef([LT_PROG_GCJ], + [m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])]) + +AC_PROVIDE_IFELSE([AC_PROG_GO], + [LT_LANG(GO)], + [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])]) + +AC_PROVIDE_IFELSE([LT_PROG_RC], + [LT_LANG(RC)], + [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])]) +])# _LT_LANG_DEFAULT_CONFIG + +# Obsolete macros: +AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)]) +AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)]) +AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)]) +AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)]) +AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_CXX], []) +dnl AC_DEFUN([AC_LIBTOOL_F77], []) +dnl AC_DEFUN([AC_LIBTOOL_FC], []) +dnl AC_DEFUN([AC_LIBTOOL_GCJ], []) +dnl AC_DEFUN([AC_LIBTOOL_RC], []) + + +# _LT_TAG_COMPILER +# ---------------- +m4_defun([_LT_TAG_COMPILER], +[AC_REQUIRE([AC_PROG_CC])dnl + +_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl +_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl +_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl +_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC +])# _LT_TAG_COMPILER + + +# _LT_COMPILER_BOILERPLATE +# ------------------------ +# Check for compiler boilerplate output or warnings with +# the simple compiler test code. +m4_defun([_LT_COMPILER_BOILERPLATE], +[m4_require([_LT_DECL_SED])dnl +ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* +])# _LT_COMPILER_BOILERPLATE + + +# _LT_LINKER_BOILERPLATE +# ---------------------- +# Check for linker boilerplate output or warnings with +# the simple link test code. +m4_defun([_LT_LINKER_BOILERPLATE], +[m4_require([_LT_DECL_SED])dnl +ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* +])# _LT_LINKER_BOILERPLATE + +# _LT_REQUIRED_DARWIN_CHECKS +# ------------------------- +m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[ + case $host_os in + rhapsody* | darwin*) + AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:]) + AC_CHECK_TOOL([NMEDIT], [nmedit], [:]) + AC_CHECK_TOOL([LIPO], [lipo], [:]) + AC_CHECK_TOOL([OTOOL], [otool], [:]) + AC_CHECK_TOOL([OTOOL64], [otool64], [:]) + _LT_DECL([], [DSYMUTIL], [1], + [Tool to manipulate archived DWARF debug symbol files on Mac OS X]) + _LT_DECL([], [NMEDIT], [1], + [Tool to change global to local symbols on Mac OS X]) + _LT_DECL([], [LIPO], [1], + [Tool to manipulate fat objects and archives on Mac OS X]) + _LT_DECL([], [OTOOL], [1], + [ldd/readelf like tool for Mach-O binaries on Mac OS X]) + _LT_DECL([], [OTOOL64], [1], + [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4]) + + AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod], + [lt_cv_apple_cc_single_mod=no + if test -z "${LT_MULTI_MODULE}"; then + # By default we will add the -single_module flag. You can override + # by either setting the environment variable LT_MULTI_MODULE + # non-empty at configure time, or by adding -multi_module to the + # link flags. + rm -rf libconftest.dylib* + echo "int foo(void){return 1;}" > conftest.c + echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ +-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ + -dynamiclib -Wl,-single_module conftest.c 2>conftest.err + _lt_result=$? + # If there is a non-empty error log, and "single_module" + # appears in it, assume the flag caused a linker warning + if test -s conftest.err && $GREP single_module conftest.err; then + cat conftest.err >&AS_MESSAGE_LOG_FD + # Otherwise, if the output was created with a 0 exit code from + # the compiler, it worked. + elif test -f libconftest.dylib && test $_lt_result -eq 0; then + lt_cv_apple_cc_single_mod=yes + else + cat conftest.err >&AS_MESSAGE_LOG_FD + fi + rm -rf libconftest.dylib* + rm -f conftest.* + fi]) + + AC_CACHE_CHECK([for -exported_symbols_list linker flag], + [lt_cv_ld_exported_symbols_list], + [lt_cv_ld_exported_symbols_list=no + save_LDFLAGS=$LDFLAGS + echo "_main" > conftest.sym + LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], + [lt_cv_ld_exported_symbols_list=yes], + [lt_cv_ld_exported_symbols_list=no]) + LDFLAGS="$save_LDFLAGS" + ]) + + AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load], + [lt_cv_ld_force_load=no + cat > conftest.c << _LT_EOF +int forced_loaded() { return 2;} +_LT_EOF + echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD + echo "$AR cru libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD + $AR cru libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD + echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD + $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD + cat > conftest.c << _LT_EOF +int main() { return 0;} +_LT_EOF + echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err + _lt_result=$? + if test -s conftest.err && $GREP force_load conftest.err; then + cat conftest.err >&AS_MESSAGE_LOG_FD + elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then + lt_cv_ld_force_load=yes + else + cat conftest.err >&AS_MESSAGE_LOG_FD + fi + rm -f conftest.err libconftest.a conftest conftest.c + rm -rf conftest.dSYM + ]) + case $host_os in + rhapsody* | darwin1.[[012]]) + _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;; + darwin1.*) + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; + darwin*) # darwin 5.x on + # if running on 10.5 or later, the deployment target defaults + # to the OS version, if on x86, and 10.4, the deployment + # target defaults to 10.4. Don't you love it? + case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in + 10.0,*86*-darwin8*|10.0,*-darwin[[91]]*) + _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;; + 10.[[012]]*) + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; + 10.*) + _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;; + esac + ;; + esac + if test "$lt_cv_apple_cc_single_mod" = "yes"; then + _lt_dar_single_mod='$single_module' + fi + if test "$lt_cv_ld_exported_symbols_list" = "yes"; then + _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym' + else + _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}' + fi + if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then + _lt_dsymutil='~$DSYMUTIL $lib || :' + else + _lt_dsymutil= + fi + ;; + esac +]) + + +# _LT_DARWIN_LINKER_FEATURES([TAG]) +# --------------------------------- +# Checks for linker and compiler features on darwin +m4_defun([_LT_DARWIN_LINKER_FEATURES], +[ + m4_require([_LT_REQUIRED_DARWIN_CHECKS]) + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_automatic, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported + if test "$lt_cv_ld_force_load" = "yes"; then + _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes], + [FC], [_LT_TAGVAR(compiler_needs_object, $1)=yes]) + else + _LT_TAGVAR(whole_archive_flag_spec, $1)='' + fi + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)="$_lt_dar_allow_undefined" + case $cc_basename in + ifort*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test "$_lt_dar_can_shared" = "yes"; then + output_verbose_link_cmd=func_echo_all + _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}" + _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}" + _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}" + _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}" + m4_if([$1], [CXX], +[ if test "$lt_cv_apple_cc_single_mod" != "yes"; then + _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}" + _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}" + fi +],[]) + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi +]) + +# _LT_SYS_MODULE_PATH_AIX([TAGNAME]) +# ---------------------------------- +# Links a minimal program and checks the executable +# for the system default hardcoded library path. In most cases, +# this is /usr/lib:/lib, but when the MPI compilers are used +# the location of the communication and MPI libs are included too. +# If we don't find anything, use the default library path according +# to the aix ld manual. +# Store the results from the different compilers for each TAGNAME. +# Allow to override them for all tags through lt_cv_aix_libpath. +m4_defun([_LT_SYS_MODULE_PATH_AIX], +[m4_require([_LT_DECL_SED])dnl +if test "${lt_cv_aix_libpath+set}" = set; then + aix_libpath=$lt_cv_aix_libpath +else + AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])], + [AC_LINK_IFELSE([AC_LANG_PROGRAM],[ + lt_aix_libpath_sed='[ + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }]' + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi],[]) + if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])="/usr/lib:/lib" + fi + ]) + aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1]) +fi +])# _LT_SYS_MODULE_PATH_AIX + + +# _LT_SHELL_INIT(ARG) +# ------------------- +m4_define([_LT_SHELL_INIT], +[m4_divert_text([M4SH-INIT], [$1 +])])# _LT_SHELL_INIT + + + +# _LT_PROG_ECHO_BACKSLASH +# ----------------------- +# Find how we can fake an echo command that does not interpret backslash. +# In particular, with Autoconf 2.60 or later we add some code to the start +# of the generated configure script which will find a shell with a builtin +# printf (which we can use as an echo command). +m4_defun([_LT_PROG_ECHO_BACKSLASH], +[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + +AC_MSG_CHECKING([how to print strings]) +# Test print first, because it will be a builtin if present. +if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \ + test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='print -r --' +elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='printf %s\n' +else + # Use this function as a fallback that always works. + func_fallback_echo () + { + eval 'cat <<_LTECHO_EOF +$[]1 +_LTECHO_EOF' + } + ECHO='func_fallback_echo' +fi + +# func_echo_all arg... +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "$*" +} + +case "$ECHO" in + printf*) AC_MSG_RESULT([printf]) ;; + print*) AC_MSG_RESULT([print -r]) ;; + *) AC_MSG_RESULT([cat]) ;; +esac + +m4_ifdef([_AS_DETECT_SUGGESTED], +[_AS_DETECT_SUGGESTED([ + test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || ( + ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' + ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO + ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + PATH=/empty FPATH=/empty; export PATH FPATH + test "X`printf %s $ECHO`" = "X$ECHO" \ + || test "X`print -r -- $ECHO`" = "X$ECHO" )])]) + +_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts]) +_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes]) +])# _LT_PROG_ECHO_BACKSLASH + + +# _LT_WITH_SYSROOT +# ---------------- +AC_DEFUN([_LT_WITH_SYSROOT], +[AC_MSG_CHECKING([for sysroot]) +AC_ARG_WITH([sysroot], +[ --with-sysroot[=DIR] Search for dependent libraries within DIR + (or the compiler's sysroot if not specified).], +[], [with_sysroot=no]) + +dnl lt_sysroot will always be passed unquoted. We quote it here +dnl in case the user passed a directory name. +lt_sysroot= +case ${with_sysroot} in #( + yes) + if test "$GCC" = yes; then + lt_sysroot=`$CC --print-sysroot 2>/dev/null` + fi + ;; #( + /*) + lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` + ;; #( + no|'') + ;; #( + *) + AC_MSG_RESULT([${with_sysroot}]) + AC_MSG_ERROR([The sysroot must be an absolute path.]) + ;; +esac + + AC_MSG_RESULT([${lt_sysroot:-no}]) +_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl +[dependent libraries, and in which our libraries should be installed.])]) + +# _LT_ENABLE_LOCK +# --------------- +m4_defun([_LT_ENABLE_LOCK], +[AC_ARG_ENABLE([libtool-lock], + [AS_HELP_STRING([--disable-libtool-lock], + [avoid locking (might break parallel builds)])]) +test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +ia64-*-hpux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.$ac_objext` in + *ELF-32*) + HPUX_IA64_MODE="32" + ;; + *ELF-64*) + HPUX_IA64_MODE="64" + ;; + esac + fi + rm -rf conftest* + ;; +*-*-irix6*) + # Find out which ABI we are using. + echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + if test "$lt_cv_prog_gnu_ld" = yes; then + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ +s390*-*linux*|s390*-*tpf*|sparc*-*linux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.o` in + *32-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_i386_fbsd" + ;; + x86_64-*linux*) + case `/usr/bin/file conftest.o` in + *x86-64*) + LD="${LD-ld} -m elf32_x86_64" + ;; + *) + LD="${LD-ld} -m elf_i386" + ;; + esac + ;; + powerpc64le-*) + LD="${LD-ld} -m elf32lppclinux" + ;; + powerpc64-*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_x86_64_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + powerpcle-*) + LD="${LD-ld} -m elf64lppc" + ;; + powerpc-*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*|s390*-*tpf*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -belf" + AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf, + [AC_LANG_PUSH(C) + AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no]) + AC_LANG_POP]) + if test x"$lt_cv_cc_needs_belf" != x"yes"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS="$SAVE_CFLAGS" + fi + ;; +*-*solaris*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.o` in + *64-bit*) + case $lt_cv_prog_gnu_ld in + yes*) + case $host in + i?86-*-solaris*) + LD="${LD-ld} -m elf_x86_64" + ;; + sparc*-*-solaris*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + # GNU ld 2.21 introduced _sol2 emulations. Use them if available. + if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then + LD="${LD-ld}_sol2" + fi + ;; + *) + if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then + LD="${LD-ld} -64" + fi + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; +esac + +need_locks="$enable_libtool_lock" +])# _LT_ENABLE_LOCK + + +# _LT_PROG_AR +# ----------- +m4_defun([_LT_PROG_AR], +[AC_CHECK_TOOLS(AR, [ar], false) +: ${AR=ar} +: ${AR_FLAGS=cru} +_LT_DECL([], [AR], [1], [The archiver]) +_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive]) + +AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file], + [lt_cv_ar_at_file=no + AC_COMPILE_IFELSE([AC_LANG_PROGRAM], + [echo conftest.$ac_objext > conftest.lst + lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD' + AC_TRY_EVAL([lt_ar_try]) + if test "$ac_status" -eq 0; then + # Ensure the archiver fails upon bogus file names. + rm -f conftest.$ac_objext libconftest.a + AC_TRY_EVAL([lt_ar_try]) + if test "$ac_status" -ne 0; then + lt_cv_ar_at_file=@ + fi + fi + rm -f conftest.* libconftest.a + ]) + ]) + +if test "x$lt_cv_ar_at_file" = xno; then + archiver_list_spec= +else + archiver_list_spec=$lt_cv_ar_at_file +fi +_LT_DECL([], [archiver_list_spec], [1], + [How to feed a file listing to the archiver]) +])# _LT_PROG_AR + + +# _LT_CMD_OLD_ARCHIVE +# ------------------- +m4_defun([_LT_CMD_OLD_ARCHIVE], +[_LT_PROG_AR + +AC_CHECK_TOOL(STRIP, strip, :) +test -z "$STRIP" && STRIP=: +_LT_DECL([], [STRIP], [1], [A symbol stripping program]) + +AC_CHECK_TOOL(RANLIB, ranlib, :) +test -z "$RANLIB" && RANLIB=: +_LT_DECL([], [RANLIB], [1], + [Commands used to install an old-style archive]) + +# Determine commands to create old-style static archives. +old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' +old_postinstall_cmds='chmod 644 $oldlib' +old_postuninstall_cmds= + +if test -n "$RANLIB"; then + case $host_os in + openbsd*) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" + ;; + *) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" + ;; + esac + old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" +fi + +case $host_os in + darwin*) + lock_old_archive_extraction=yes ;; + *) + lock_old_archive_extraction=no ;; +esac +_LT_DECL([], [old_postinstall_cmds], [2]) +_LT_DECL([], [old_postuninstall_cmds], [2]) +_LT_TAGDECL([], [old_archive_cmds], [2], + [Commands used to build an old-style archive]) +_LT_DECL([], [lock_old_archive_extraction], [0], + [Whether to use a lock for old archive extraction]) +])# _LT_CMD_OLD_ARCHIVE + + +# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, +# [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE]) +# ---------------------------------------------------------------- +# Check whether the given compiler option works +AC_DEFUN([_LT_COMPILER_OPTION], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_SED])dnl +AC_CACHE_CHECK([$1], [$2], + [$2=no + m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4]) + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="$3" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&AS_MESSAGE_LOG_FD + echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + $2=yes + fi + fi + $RM conftest* +]) + +if test x"[$]$2" = xyes; then + m4_if([$5], , :, [$5]) +else + m4_if([$6], , :, [$6]) +fi +])# _LT_COMPILER_OPTION + +# Old name: +AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], []) + + +# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, +# [ACTION-SUCCESS], [ACTION-FAILURE]) +# ---------------------------------------------------- +# Check whether the given linker option works +AC_DEFUN([_LT_LINKER_OPTION], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_SED])dnl +AC_CACHE_CHECK([$1], [$2], + [$2=no + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS $3" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&AS_MESSAGE_LOG_FD + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + $2=yes + fi + else + $2=yes + fi + fi + $RM -r conftest* + LDFLAGS="$save_LDFLAGS" +]) + +if test x"[$]$2" = xyes; then + m4_if([$4], , :, [$4]) +else + m4_if([$5], , :, [$5]) +fi +])# _LT_LINKER_OPTION + +# Old name: +AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], []) + + +# LT_CMD_MAX_LEN +#--------------- +AC_DEFUN([LT_CMD_MAX_LEN], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +# find the maximum length of command line arguments +AC_MSG_CHECKING([the maximum length of command line arguments]) +AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl + i=0 + teststring="ABCD" + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + gnu*) + # Under GNU Hurd, this test is not required because there is + # no limit to the length of command line arguments. + # Libtool will interpret -1 as no limit whatsoever + lt_cv_sys_max_cmd_len=-1; + ;; + + cygwin* | mingw* | cegcc*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + mint*) + # On MiNT this can take a long time and run out of memory. + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + netbsd* | freebsd* | openbsd* | darwin* | dragonfly*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + + interix*) + # We know the value 262144 and hardcode it with a safety zone (like BSD) + lt_cv_sys_max_cmd_len=196608 + ;; + + os2*) + # The test takes a long time on OS/2. + lt_cv_sys_max_cmd_len=8192 + ;; + + osf*) + # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure + # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not + # nice to cause kernel panics so lets avoid the loop below. + # First set a reasonable default. + lt_cv_sys_max_cmd_len=16384 + # + if test -x /sbin/sysconfig; then + case `/sbin/sysconfig -q proc exec_disable_arg_limit` in + *1*) lt_cv_sys_max_cmd_len=-1 ;; + esac + fi + ;; + sco3.2v5*) + lt_cv_sys_max_cmd_len=102400 + ;; + sysv5* | sco5v6* | sysv4.2uw2*) + kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` + if test -n "$kargmax"; then + lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'` + else + lt_cv_sys_max_cmd_len=32768 + fi + ;; + *) + lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` + if test -n "$lt_cv_sys_max_cmd_len" && \ + test undefined != "$lt_cv_sys_max_cmd_len"; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8 ; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \ + = "X$teststring$teststring"; } >/dev/null 2>&1 && + test $i != 17 # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi + ;; + esac +]) +if test -n $lt_cv_sys_max_cmd_len ; then + AC_MSG_RESULT($lt_cv_sys_max_cmd_len) +else + AC_MSG_RESULT(none) +fi +max_cmd_len=$lt_cv_sys_max_cmd_len +_LT_DECL([], [max_cmd_len], [0], + [What is the maximum length of a command?]) +])# LT_CMD_MAX_LEN + +# Old name: +AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], []) + + +# _LT_HEADER_DLFCN +# ---------------- +m4_defun([_LT_HEADER_DLFCN], +[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl +])# _LT_HEADER_DLFCN + + +# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE, +# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING) +# ---------------------------------------------------------------- +m4_defun([_LT_TRY_DLOPEN_SELF], +[m4_require([_LT_HEADER_DLFCN])dnl +if test "$cross_compiling" = yes; then : + [$4] +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +[#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisbility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +}] +_LT_EOF + if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then + (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) $1 ;; + x$lt_dlneed_uscore) $2 ;; + x$lt_dlunknown|x*) $3 ;; + esac + else : + # compilation failed + $3 + fi +fi +rm -fr conftest* +])# _LT_TRY_DLOPEN_SELF + + +# LT_SYS_DLOPEN_SELF +# ------------------ +AC_DEFUN([LT_SYS_DLOPEN_SELF], +[m4_require([_LT_HEADER_DLFCN])dnl +if test "x$enable_dlopen" != xyes; then + enable_dlopen=unknown + enable_dlopen_self=unknown + enable_dlopen_self_static=unknown +else + lt_cv_dlopen=no + lt_cv_dlopen_libs= + + case $host_os in + beos*) + lt_cv_dlopen="load_add_on" + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ;; + + mingw* | pw32* | cegcc*) + lt_cv_dlopen="LoadLibrary" + lt_cv_dlopen_libs= + ;; + + cygwin*) + lt_cv_dlopen="dlopen" + lt_cv_dlopen_libs= + ;; + + darwin*) + # if libdl is installed we need to link against it + AC_CHECK_LIB([dl], [dlopen], + [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[ + lt_cv_dlopen="dyld" + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ]) + ;; + + *) + AC_CHECK_FUNC([shl_load], + [lt_cv_dlopen="shl_load"], + [AC_CHECK_LIB([dld], [shl_load], + [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"], + [AC_CHECK_FUNC([dlopen], + [lt_cv_dlopen="dlopen"], + [AC_CHECK_LIB([dl], [dlopen], + [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"], + [AC_CHECK_LIB([svld], [dlopen], + [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"], + [AC_CHECK_LIB([dld], [dld_link], + [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"]) + ]) + ]) + ]) + ]) + ]) + ;; + esac + + if test "x$lt_cv_dlopen" != xno; then + enable_dlopen=yes + else + enable_dlopen=no + fi + + case $lt_cv_dlopen in + dlopen) + save_CPPFLAGS="$CPPFLAGS" + test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" + + save_LDFLAGS="$LDFLAGS" + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" + + save_LIBS="$LIBS" + LIBS="$lt_cv_dlopen_libs $LIBS" + + AC_CACHE_CHECK([whether a program can dlopen itself], + lt_cv_dlopen_self, [dnl + _LT_TRY_DLOPEN_SELF( + lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes, + lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross) + ]) + + if test "x$lt_cv_dlopen_self" = xyes; then + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" + AC_CACHE_CHECK([whether a statically linked program can dlopen itself], + lt_cv_dlopen_self_static, [dnl + _LT_TRY_DLOPEN_SELF( + lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes, + lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross) + ]) + fi + + CPPFLAGS="$save_CPPFLAGS" + LDFLAGS="$save_LDFLAGS" + LIBS="$save_LIBS" + ;; + esac + + case $lt_cv_dlopen_self in + yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; + *) enable_dlopen_self=unknown ;; + esac + + case $lt_cv_dlopen_self_static in + yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; + *) enable_dlopen_self_static=unknown ;; + esac +fi +_LT_DECL([dlopen_support], [enable_dlopen], [0], + [Whether dlopen is supported]) +_LT_DECL([dlopen_self], [enable_dlopen_self], [0], + [Whether dlopen of programs is supported]) +_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0], + [Whether dlopen of statically linked programs is supported]) +])# LT_SYS_DLOPEN_SELF + +# Old name: +AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], []) + + +# _LT_COMPILER_C_O([TAGNAME]) +# --------------------------- +# Check to see if options -c and -o are simultaneously supported by compiler. +# This macro does not hard code the compiler like AC_PROG_CC_C_O. +m4_defun([_LT_COMPILER_C_O], +[m4_require([_LT_DECL_SED])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_TAG_COMPILER])dnl +AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext], + [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)], + [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&AS_MESSAGE_LOG_FD + echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes + fi + fi + chmod u+w . 2>&AS_MESSAGE_LOG_FD + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* +]) +_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1], + [Does compiler simultaneously support -c and -o options?]) +])# _LT_COMPILER_C_O + + +# _LT_COMPILER_FILE_LOCKS([TAGNAME]) +# ---------------------------------- +# Check to see if we can do hard links to lock some files if needed +m4_defun([_LT_COMPILER_FILE_LOCKS], +[m4_require([_LT_ENABLE_LOCK])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +_LT_COMPILER_C_O([$1]) + +hard_links="nottested" +if test "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then + # do not overwrite the value of need_locks provided by the user + AC_MSG_CHECKING([if we can lock with hard links]) + hard_links=yes + $RM conftest* + ln conftest.a conftest.b 2>/dev/null && hard_links=no + touch conftest.a + ln conftest.a conftest.b 2>&5 || hard_links=no + ln conftest.a conftest.b 2>/dev/null && hard_links=no + AC_MSG_RESULT([$hard_links]) + if test "$hard_links" = no; then + AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe]) + need_locks=warn + fi +else + need_locks=no +fi +_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?]) +])# _LT_COMPILER_FILE_LOCKS + + +# _LT_CHECK_OBJDIR +# ---------------- +m4_defun([_LT_CHECK_OBJDIR], +[AC_CACHE_CHECK([for objdir], [lt_cv_objdir], +[rm -f .libs 2>/dev/null +mkdir .libs 2>/dev/null +if test -d .libs; then + lt_cv_objdir=.libs +else + # MS-DOS does not allow filenames that begin with a dot. + lt_cv_objdir=_libs +fi +rmdir .libs 2>/dev/null]) +objdir=$lt_cv_objdir +_LT_DECL([], [objdir], [0], + [The name of the directory that contains temporary libtool files])dnl +m4_pattern_allow([LT_OBJDIR])dnl +AC_DEFINE_UNQUOTED(LT_OBJDIR, "$lt_cv_objdir/", + [Define to the sub-directory in which libtool stores uninstalled libraries.]) +])# _LT_CHECK_OBJDIR + + +# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME]) +# -------------------------------------- +# Check hardcoding attributes. +m4_defun([_LT_LINKER_HARDCODE_LIBPATH], +[AC_MSG_CHECKING([how to hardcode library paths into programs]) +_LT_TAGVAR(hardcode_action, $1)= +if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" || + test -n "$_LT_TAGVAR(runpath_var, $1)" || + test "X$_LT_TAGVAR(hardcode_automatic, $1)" = "Xyes" ; then + + # We can hardcode non-existent directories. + if test "$_LT_TAGVAR(hardcode_direct, $1)" != no && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" != no && + test "$_LT_TAGVAR(hardcode_minus_L, $1)" != no; then + # Linking always hardcodes the temporary library directory. + _LT_TAGVAR(hardcode_action, $1)=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + _LT_TAGVAR(hardcode_action, $1)=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + _LT_TAGVAR(hardcode_action, $1)=unsupported +fi +AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)]) + +if test "$_LT_TAGVAR(hardcode_action, $1)" = relink || + test "$_LT_TAGVAR(inherit_rpath, $1)" = yes; then + # Fast installation is not supported + enable_fast_install=no +elif test "$shlibpath_overrides_runpath" = yes || + test "$enable_shared" = no; then + # Fast installation is not necessary + enable_fast_install=needless +fi +_LT_TAGDECL([], [hardcode_action], [0], + [How to hardcode a shared library path into an executable]) +])# _LT_LINKER_HARDCODE_LIBPATH + + +# _LT_CMD_STRIPLIB +# ---------------- +m4_defun([_LT_CMD_STRIPLIB], +[m4_require([_LT_DECL_EGREP]) +striplib= +old_striplib= +AC_MSG_CHECKING([whether stripping libraries is possible]) +if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then + test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" + test -z "$striplib" && striplib="$STRIP --strip-unneeded" + AC_MSG_RESULT([yes]) +else +# FIXME - insert some real tests, host_os isn't really good enough + case $host_os in + darwin*) + if test -n "$STRIP" ; then + striplib="$STRIP -x" + old_striplib="$STRIP -S" + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + ;; + *) + AC_MSG_RESULT([no]) + ;; + esac +fi +_LT_DECL([], [old_striplib], [1], [Commands to strip libraries]) +_LT_DECL([], [striplib], [1]) +])# _LT_CMD_STRIPLIB + + +# _LT_SYS_DYNAMIC_LINKER([TAG]) +# ----------------------------- +# PORTME Fill in your ld.so characteristics +m4_defun([_LT_SYS_DYNAMIC_LINKER], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_OBJDUMP])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_CHECK_SHELL_FEATURES])dnl +AC_MSG_CHECKING([dynamic linker characteristics]) +m4_if([$1], + [], [ +if test "$GCC" = yes; then + case $host_os in + darwin*) lt_awk_arg="/^libraries:/,/LR/" ;; + *) lt_awk_arg="/^libraries:/" ;; + esac + case $host_os in + mingw* | cegcc*) lt_sed_strip_eq="s,=\([[A-Za-z]]:\),\1,g" ;; + *) lt_sed_strip_eq="s,=/,/,g" ;; + esac + lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` + case $lt_search_path_spec in + *\;*) + # if the path contains ";" then we assume it to be the separator + # otherwise default to the standard path separator (i.e. ":") - it is + # assumed that no part of a normal pathname contains ";" but that should + # okay in the real world where ";" in dirpaths is itself problematic. + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` + ;; + *) + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` + ;; + esac + # Ok, now we have the path, separated by spaces, we can step through it + # and add multilib dir if necessary. + lt_tmp_lt_search_path_spec= + lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` + for lt_sys_path in $lt_search_path_spec; do + if test -d "$lt_sys_path/$lt_multi_os_dir"; then + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir" + else + test -d "$lt_sys_path" && \ + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path" + fi + done + lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk ' +BEGIN {RS=" "; FS="/|\n";} { + lt_foo=""; + lt_count=0; + for (lt_i = NF; lt_i > 0; lt_i--) { + if ($lt_i != "" && $lt_i != ".") { + if ($lt_i == "..") { + lt_count++; + } else { + if (lt_count == 0) { + lt_foo="/" $lt_i lt_foo; + } else { + lt_count--; + } + } + } + } + if (lt_foo != "") { lt_freq[[lt_foo]]++; } + if (lt_freq[[lt_foo]] == 1) { print lt_foo; } +}'` + # AWK program above erroneously prepends '/' to C:/dos/paths + # for these hosts. + case $host_os in + mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\ + $SED 's,/\([[A-Za-z]]:\),\1,g'` ;; + esac + sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP` +else + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" +fi]) +library_names_spec= +libname_spec='lib$name' +soname_spec= +shrext_cmds=".so" +postinstall_cmds= +postuninstall_cmds= +finish_cmds= +finish_eval= +shlibpath_var= +shlibpath_overrides_runpath=unknown +version_type=none +dynamic_linker="$host_os ld.so" +sys_lib_dlsearch_path_spec="/lib /usr/lib" +need_lib_prefix=unknown +hardcode_into_libs=no + +# when you set need_version to no, make sure it does not cause -set_version +# flags to be left without arguments +need_version=unknown + +case $host_os in +aix3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a' + shlibpath_var=LIBPATH + + # AIX 3 has no versioning support, so we append a major version to the name. + soname_spec='${libname}${release}${shared_ext}$major' + ;; + +aix[[4-9]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + hardcode_into_libs=yes + if test "$host_cpu" = ia64; then + # AIX 5 supports IA64 + library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line `#! .'. This would cause the generated library to + # depend on `.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[[01]] | aix4.[[01]].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # AIX (on Power*) has no versioning support, so currently we can not hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + if test "$aix_use_runtimelinking" = yes; then + # If using run time linking (on AIX 4.2 or later) use lib.so + # instead of lib.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + else + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='${libname}${release}.a $libname.a' + soname_spec='${libname}${release}${shared_ext}$major' + fi + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='${libname}${shared_ext}' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[[45]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=".dll" + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \${file}`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}' +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"]) + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl*) + # Native MSVC + libname_spec='$name' + soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}' + library_names_spec='${libname}.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec="$LIB" + if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \${file}`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC wrapper + library_names_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext} $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext' + soname_spec='${libname}${release}${major}$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"]) + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[[23]].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[[01]]* | freebsdelf3.[[01]]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \ + freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=yes + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + if test "X$HPUX_IA64_MODE" = X32; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + fi + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[[3-9]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test "$lt_cv_prog_gnu_ld" = yes; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='${libname}${release}${shared_ext}$major' + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}" + sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath], + [lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \ + LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\"" + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], + [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null], + [lt_cv_shlibpath_overrides_runpath=yes])]) + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + ]) + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Append ld.so.conf contents to the search path + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsdelf*-gnu) + version_type=linux + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='NetBSD ld.elf_so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd*) + version_type=sunos + sys_lib_dlsearch_path_spec="/usr/lib" + need_lib_prefix=no + # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs. + case $host_os in + openbsd3.3 | openbsd3.3.*) need_version=yes ;; + *) need_version=no ;; + esac + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + case $host_os in + openbsd2.[[89]] | openbsd2.[[89]].*) + shlibpath_overrides_runpath=no + ;; + *) + shlibpath_overrides_runpath=yes + ;; + esac + else + shlibpath_overrides_runpath=yes + fi + ;; + +os2*) + libname_spec='$name' + shrext_cmds=".dll" + need_lib_prefix=no + library_names_spec='$libname${shared_ext} $libname.a' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=LIBPATH + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='${libname}${release}${shared_ext}$major' + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec" + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test "$with_gnu_ld" = yes; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec ;then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}' + soname_spec='$libname${shared_ext}.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=freebsd-elf + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test "$with_gnu_ld" = yes; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +AC_MSG_RESULT([$dynamic_linker]) +test "$dynamic_linker" = no && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test "$GCC" = yes; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then + sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec" +fi +if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then + sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec" +fi + +_LT_DECL([], [variables_saved_for_relink], [1], + [Variables whose values should be saved in libtool wrapper scripts and + restored at link time]) +_LT_DECL([], [need_lib_prefix], [0], + [Do we need the "lib" prefix for modules?]) +_LT_DECL([], [need_version], [0], [Do we need a version for libraries?]) +_LT_DECL([], [version_type], [0], [Library versioning type]) +_LT_DECL([], [runpath_var], [0], [Shared library runtime path variable]) +_LT_DECL([], [shlibpath_var], [0],[Shared library path variable]) +_LT_DECL([], [shlibpath_overrides_runpath], [0], + [Is shlibpath searched before the hard-coded library search path?]) +_LT_DECL([], [libname_spec], [1], [Format of library name prefix]) +_LT_DECL([], [library_names_spec], [1], + [[List of archive names. First name is the real one, the rest are links. + The last name is the one that the linker finds with -lNAME]]) +_LT_DECL([], [soname_spec], [1], + [[The coded name of the library, if different from the real name]]) +_LT_DECL([], [install_override_mode], [1], + [Permission mode override for installation of shared libraries]) +_LT_DECL([], [postinstall_cmds], [2], + [Command to use after installation of a shared archive]) +_LT_DECL([], [postuninstall_cmds], [2], + [Command to use after uninstallation of a shared archive]) +_LT_DECL([], [finish_cmds], [2], + [Commands used to finish a libtool library installation in a directory]) +_LT_DECL([], [finish_eval], [1], + [[As "finish_cmds", except a single script fragment to be evaled but + not shown]]) +_LT_DECL([], [hardcode_into_libs], [0], + [Whether we should hardcode library paths into libraries]) +_LT_DECL([], [sys_lib_search_path_spec], [2], + [Compile-time system search path for libraries]) +_LT_DECL([], [sys_lib_dlsearch_path_spec], [2], + [Run-time system search path for libraries]) +])# _LT_SYS_DYNAMIC_LINKER + + +# _LT_PATH_TOOL_PREFIX(TOOL) +# -------------------------- +# find a file program which can recognize shared library +AC_DEFUN([_LT_PATH_TOOL_PREFIX], +[m4_require([_LT_DECL_EGREP])dnl +AC_MSG_CHECKING([for $1]) +AC_CACHE_VAL(lt_cv_path_MAGIC_CMD, +[case $MAGIC_CMD in +[[\\/*] | ?:[\\/]*]) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD="$MAGIC_CMD" + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR +dnl $ac_dummy forces splitting on constant user-supplied paths. +dnl POSIX.2 word splitting is done only on the output of word expansions, +dnl not every word. This closes a longstanding sh security hole. + ac_dummy="m4_if([$2], , $PATH, [$2])" + for ac_dir in $ac_dummy; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/$1; then + lt_cv_path_MAGIC_CMD="$ac_dir/$1" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD="$lt_cv_path_MAGIC_CMD" + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS="$lt_save_ifs" + MAGIC_CMD="$lt_save_MAGIC_CMD" + ;; +esac]) +MAGIC_CMD="$lt_cv_path_MAGIC_CMD" +if test -n "$MAGIC_CMD"; then + AC_MSG_RESULT($MAGIC_CMD) +else + AC_MSG_RESULT(no) +fi +_LT_DECL([], [MAGIC_CMD], [0], + [Used to examine libraries when file_magic_cmd begins with "file"])dnl +])# _LT_PATH_TOOL_PREFIX + +# Old name: +AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], []) + + +# _LT_PATH_MAGIC +# -------------- +# find a file program which can recognize a shared library +m4_defun([_LT_PATH_MAGIC], +[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH) +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH) + else + MAGIC_CMD=: + fi +fi +])# _LT_PATH_MAGIC + + +# LT_PATH_LD +# ---------- +# find the pathname to the GNU or non-GNU linker +AC_DEFUN([LT_PATH_LD], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_PROG_ECHO_BACKSLASH])dnl + +AC_ARG_WITH([gnu-ld], + [AS_HELP_STRING([--with-gnu-ld], + [assume the C compiler uses GNU ld @<:@default=no@:>@])], + [test "$withval" = no || with_gnu_ld=yes], + [with_gnu_ld=no])dnl + +ac_prog=ld +if test "$GCC" = yes; then + # Check if gcc -print-prog-name=ld gives a path. + AC_MSG_CHECKING([for ld used by $CC]) + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [[\\/]]* | ?:[[\\/]]*) + re_direlt='/[[^/]][[^/]]*/\.\./' + # Canonicalize the pathname of ld + ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'` + while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do + ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"` + done + test -z "$LD" && LD="$ac_prog" + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test "$with_gnu_ld" = yes; then + AC_MSG_CHECKING([for GNU ld]) +else + AC_MSG_CHECKING([for non-GNU ld]) +fi +AC_CACHE_VAL(lt_cv_path_LD, +[if test -z "$LD"; then + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + lt_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$lt_cv_path_LD" -v 2>&1 &1 /dev/null 2>&1; then + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + else + # Keep this pattern in sync with the one in func_win32_libid. + lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' + lt_cv_file_magic_cmd='$OBJDUMP -f' + fi + ;; + +cegcc*) + # use the weaker test based on 'objdump'. See mingw*. + lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | dragonfly*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +haiku*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20* | hpux11*) + lt_cv_file_magic_cmd=/usr/bin/file + case $host_cpu in + ia64*) + lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64' + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + hppa*64*) + [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'] + lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl + ;; + *) + lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library' + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + esac + ;; + +interix[[3-9]]*) + # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$' + ;; + +irix5* | irix6* | nonstopux*) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd* | netbsdelf*-gnu) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$' + fi + ;; + +newos6*) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +*nto* | *qnx*) + lt_cv_deplibs_check_method=pass_all + ;; + +openbsd*) + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' + fi + ;; + +osf3* | osf4* | osf5*) + lt_cv_deplibs_check_method=pass_all + ;; + +rdos*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.3*) + case $host_vendor in + motorola) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + sequent) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )' + ;; + sni) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib" + lt_cv_file_magic_test_file=/lib/libc.so + ;; + siemens) + lt_cv_deplibs_check_method=pass_all + ;; + pc) + lt_cv_deplibs_check_method=pass_all + ;; + esac + ;; + +tpf*) + lt_cv_deplibs_check_method=pass_all + ;; +esac +]) + +file_magic_glob= +want_nocaseglob=no +if test "$build" = "$host"; then + case $host_os in + mingw* | pw32*) + if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then + want_nocaseglob=yes + else + file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"` + fi + ;; + esac +fi + +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method +test -z "$deplibs_check_method" && deplibs_check_method=unknown + +_LT_DECL([], [deplibs_check_method], [1], + [Method to check whether dependent libraries are shared objects]) +_LT_DECL([], [file_magic_cmd], [1], + [Command to use when deplibs_check_method = "file_magic"]) +_LT_DECL([], [file_magic_glob], [1], + [How to find potential files when deplibs_check_method = "file_magic"]) +_LT_DECL([], [want_nocaseglob], [1], + [Find potential files using nocaseglob when deplibs_check_method = "file_magic"]) +])# _LT_CHECK_MAGIC_METHOD + + +# LT_PATH_NM +# ---------- +# find the pathname to a BSD- or MS-compatible name lister +AC_DEFUN([LT_PATH_NM], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM, +[if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM="$NM" +else + lt_nm_to_check="${ac_tool_prefix}nm" + if test -n "$ac_tool_prefix" && test "$build" = "$host"; then + lt_nm_to_check="$lt_nm_to_check nm" + fi + for lt_tmp_nm in $lt_nm_to_check; do + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + tmp_nm="$ac_dir/$lt_tmp_nm" + if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the `sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in + */dev/null* | *'Invalid file or object type'*) + lt_cv_path_NM="$tmp_nm -B" + break + ;; + *) + case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in + */dev/null*) + lt_cv_path_NM="$tmp_nm -p" + break + ;; + *) + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + ;; + esac + ;; + esac + fi + done + IFS="$lt_save_ifs" + done + : ${lt_cv_path_NM=no} +fi]) +if test "$lt_cv_path_NM" != "no"; then + NM="$lt_cv_path_NM" +else + # Didn't find any BSD compatible name lister, look for dumpbin. + if test -n "$DUMPBIN"; then : + # Let the user override the test. + else + AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :) + case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in + *COFF*) + DUMPBIN="$DUMPBIN -symbols" + ;; + *) + DUMPBIN=: + ;; + esac + fi + AC_SUBST([DUMPBIN]) + if test "$DUMPBIN" != ":"; then + NM="$DUMPBIN" + fi +fi +test -z "$NM" && NM=nm +AC_SUBST([NM]) +_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl + +AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface], + [lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext + (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&AS_MESSAGE_LOG_FD + (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD) + (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) + cat conftest.err >&AS_MESSAGE_LOG_FD + (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD) + cat conftest.out >&AS_MESSAGE_LOG_FD + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" + fi + rm -f conftest*]) +])# LT_PATH_NM + +# Old names: +AU_ALIAS([AM_PROG_NM], [LT_PATH_NM]) +AU_ALIAS([AC_PROG_NM], [LT_PATH_NM]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_PROG_NM], []) +dnl AC_DEFUN([AC_PROG_NM], []) + +# _LT_CHECK_SHAREDLIB_FROM_LINKLIB +# -------------------------------- +# how to determine the name of the shared library +# associated with a specific link library. +# -- PORTME fill in with the dynamic library characteristics +m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB], +[m4_require([_LT_DECL_EGREP]) +m4_require([_LT_DECL_OBJDUMP]) +m4_require([_LT_DECL_DLLTOOL]) +AC_CACHE_CHECK([how to associate runtime and link libraries], +lt_cv_sharedlib_from_linklib_cmd, +[lt_cv_sharedlib_from_linklib_cmd='unknown' + +case $host_os in +cygwin* | mingw* | pw32* | cegcc*) + # two different shell functions defined in ltmain.sh + # decide which to use based on capabilities of $DLLTOOL + case `$DLLTOOL --help 2>&1` in + *--identify-strict*) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib + ;; + *) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback + ;; + esac + ;; +*) + # fallback: assume linklib IS sharedlib + lt_cv_sharedlib_from_linklib_cmd="$ECHO" + ;; +esac +]) +sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd +test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO + +_LT_DECL([], [sharedlib_from_linklib_cmd], [1], + [Command to associate shared and link libraries]) +])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB + + +# _LT_PATH_MANIFEST_TOOL +# ---------------------- +# locate the manifest tool +m4_defun([_LT_PATH_MANIFEST_TOOL], +[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :) +test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt +AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool], + [lt_cv_path_mainfest_tool=no + echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD + $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out + cat conftest.err >&AS_MESSAGE_LOG_FD + if $GREP 'Manifest Tool' conftest.out > /dev/null; then + lt_cv_path_mainfest_tool=yes + fi + rm -f conftest*]) +if test "x$lt_cv_path_mainfest_tool" != xyes; then + MANIFEST_TOOL=: +fi +_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl +])# _LT_PATH_MANIFEST_TOOL + + +# LT_LIB_M +# -------- +# check for math library +AC_DEFUN([LT_LIB_M], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +LIBM= +case $host in +*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*) + # These system don't have libm, or don't need it + ;; +*-ncr-sysv4.3*) + AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw") + AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm") + ;; +*) + AC_CHECK_LIB(m, cos, LIBM="-lm") + ;; +esac +AC_SUBST([LIBM]) +])# LT_LIB_M + +# Old name: +AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_CHECK_LIBM], []) + + +# _LT_COMPILER_NO_RTTI([TAGNAME]) +# ------------------------------- +m4_defun([_LT_COMPILER_NO_RTTI], +[m4_require([_LT_TAG_COMPILER])dnl + +_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= + +if test "$GCC" = yes; then + case $cc_basename in + nvcc*) + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;; + *) + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;; + esac + + _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions], + lt_cv_prog_compiler_rtti_exceptions, + [-fno-rtti -fno-exceptions], [], + [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"]) +fi +_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1], + [Compiler flag to turn off builtin functions]) +])# _LT_COMPILER_NO_RTTI + + +# _LT_CMD_GLOBAL_SYMBOLS +# ---------------------- +m4_defun([_LT_CMD_GLOBAL_SYMBOLS], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_PROG_AWK])dnl +AC_REQUIRE([LT_PATH_NM])dnl +AC_REQUIRE([LT_PATH_LD])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_TAG_COMPILER])dnl + +# Check for command to grab the raw symbol name followed by C symbol from nm. +AC_MSG_CHECKING([command to parse $NM output from $compiler object]) +AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], +[ +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[[BCDEGRST]]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)' + +# Define system-specific variables. +case $host_os in +aix*) + symcode='[[BCDT]]' + ;; +cygwin* | mingw* | pw32* | cegcc*) + symcode='[[ABCDGISTW]]' + ;; +hpux*) + if test "$host_cpu" = ia64; then + symcode='[[ABCDEGRST]]' + fi + ;; +irix* | nonstopux*) + symcode='[[BCDEGRST]]' + ;; +osf*) + symcode='[[BCDEGQRST]]' + ;; +solaris*) + symcode='[[BDRT]]' + ;; +sco3.2v5*) + symcode='[[DT]]' + ;; +sysv4.2uw2*) + symcode='[[DT]]' + ;; +sysv5* | sco5v6* | unixware* | OpenUNIX*) + symcode='[[ABDT]]' + ;; +sysv4) + symcode='[[DFNSTU]]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +case `$NM -V 2>&1` in +*GNU* | *'with BFD'*) + symcode='[[ABCDGIRSTW]]' ;; +esac + +# Transform an extracted symbol line into a proper C declaration. +# Some systems (esp. on ia64) link data and code symbols differently, +# so use this general approach. +lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'" + +# Transform an extracted symbol line into symbol name and symbol address +lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p'" +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \(lib[[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"lib\2\", (void *) \&\2},/p'" + +# Handle CRLF in mingw tool chain +opt_cr= +case $build_os in +mingw*) + opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp + ;; +esac + +# Try without a prefix underscore, then with it. +for ac_symprfx in "" "_"; do + + # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. + symxfrm="\\1 $ac_symprfx\\2 \\2" + + # Write the raw and C identifiers. + if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Fake it for dumpbin and say T for any non-static function + # and D for any global variable. + # Also find C++ and __fastcall symbols from MSVC++, + # which start with @ or ?. + lt_cv_sys_global_symbol_pipe="$AWK ['"\ +" {last_section=section; section=\$ 3};"\ +" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ +" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ +" \$ 0!~/External *\|/{next};"\ +" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ +" {if(hide[section]) next};"\ +" {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\ +" {split(\$ 0, a, /\||\r/); split(a[2], s)};"\ +" s[1]~/^[@?]/{print s[1], s[1]; next};"\ +" s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\ +" ' prfx=^$ac_symprfx]" + else + lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" + fi + lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" + + # Check to see that the pipe works correctly. + pipe_works=no + + rm -f conftest* + cat > conftest.$ac_ext <<_LT_EOF +#ifdef __cplusplus +extern "C" { +#endif +char nm_test_var; +void nm_test_func(void); +void nm_test_func(void){} +#ifdef __cplusplus +} +#endif +int main(){nm_test_var='a';nm_test_func();return(0);} +_LT_EOF + + if AC_TRY_EVAL(ac_compile); then + # Now try to grab the symbols. + nlist=conftest.nm + if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if $GREP ' nm_test_var$' "$nlist" >/dev/null; then + if $GREP ' nm_test_func$' "$nlist" >/dev/null; then + cat <<_LT_EOF > conftest.$ac_ext +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE) +/* DATA imports from DLLs on WIN32 con't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT@&t@_DLSYM_CONST +#elif defined(__osf__) +/* This system does not cope well with relocations in const data. */ +# define LT@&t@_DLSYM_CONST +#else +# define LT@&t@_DLSYM_CONST const +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +_LT_EOF + # Now generate the symbol file. + eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' + + cat <<_LT_EOF >> conftest.$ac_ext + +/* The mapping between symbol names and symbols. */ +LT@&t@_DLSYM_CONST struct { + const char *name; + void *address; +} +lt__PROGRAM__LTX_preloaded_symbols[[]] = +{ + { "@PROGRAM@", (void *) 0 }, +_LT_EOF + $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext + cat <<\_LT_EOF >> conftest.$ac_ext + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt__PROGRAM__LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif +_LT_EOF + # Now try linking the two files. + mv conftest.$ac_objext conftstm.$ac_objext + lt_globsym_save_LIBS=$LIBS + lt_globsym_save_CFLAGS=$CFLAGS + LIBS="conftstm.$ac_objext" + CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" + if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then + pipe_works=yes + fi + LIBS=$lt_globsym_save_LIBS + CFLAGS=$lt_globsym_save_CFLAGS + else + echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD + fi + else + echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD + fi + else + echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD + fi + else + echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD + cat conftest.$ac_ext >&5 + fi + rm -rf conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test "$pipe_works" = yes; then + break + else + lt_cv_sys_global_symbol_pipe= + fi +done +]) +if test -z "$lt_cv_sys_global_symbol_pipe"; then + lt_cv_sys_global_symbol_to_cdecl= +fi +if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then + AC_MSG_RESULT(failed) +else + AC_MSG_RESULT(ok) +fi + +# Response file support. +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + nm_file_list_spec='@' +elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then + nm_file_list_spec='@' +fi + +_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], + [Take the output of nm and produce a listing of raw symbols and C names]) +_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], + [Transform the output of nm in a proper C declaration]) +_LT_DECL([global_symbol_to_c_name_address], + [lt_cv_sys_global_symbol_to_c_name_address], [1], + [Transform the output of nm in a C name address pair]) +_LT_DECL([global_symbol_to_c_name_address_lib_prefix], + [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], + [Transform the output of nm in a C name address pair when lib prefix is needed]) +_LT_DECL([], [nm_file_list_spec], [1], + [Specify filename containing input files for $NM]) +]) # _LT_CMD_GLOBAL_SYMBOLS + + +# _LT_COMPILER_PIC([TAGNAME]) +# --------------------------- +m4_defun([_LT_COMPILER_PIC], +[m4_require([_LT_TAG_COMPILER])dnl +_LT_TAGVAR(lt_prog_compiler_wl, $1)= +_LT_TAGVAR(lt_prog_compiler_pic, $1)= +_LT_TAGVAR(lt_prog_compiler_static, $1)= + +m4_if([$1], [CXX], [ + # C++ specific cases for pic, static, wl, etc. + if test "$GXX" = yes; then + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the `-m68020' flag to GCC prevents building anything better, + # like `-m68040'. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + ;; + *djgpp*) + # DJGPP does not support shared libraries at all + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + ;; + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + _LT_TAGVAR(lt_prog_compiler_static, $1)= + ;; + interix[[3-9]]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic + fi + ;; + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + else + case $host_os in + aix[[4-9]]*) + # All AIX code is PIC. + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + else + _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' + fi + ;; + chorus*) + case $cc_basename in + cxch68*) + # Green Hills C++ Compiler + # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" + ;; + esac + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + dgux*) + case $cc_basename in + ec++*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + ;; + ghcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + *) + ;; + esac + ;; + freebsd* | dragonfly*) + # FreeBSD uses GNU C++ + ;; + hpux9* | hpux10* | hpux11*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive' + if test "$host_cpu" != ia64; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + fi + ;; + aCC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive' + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + ;; + esac + ;; + *) + ;; + esac + ;; + interix*) + # This is c89, which is MS Visual C++ (no shared libs) + # Anyone wants to do a port? + ;; + irix5* | irix6* | nonstopux*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + # CC pic flag -KPIC is the default. + ;; + *) + ;; + esac + ;; + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # KAI C++ Compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + ecpc* ) + # old Intel C++ for x86_64 which still supported -KPIC. + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + icpc* ) + # Intel C++, used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + cxx*) + # Compaq C++ + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*) + # IBM XL 8.0, 9.0 on PPC and BlueGene + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + esac + ;; + esac + ;; + lynxos*) + ;; + m88k*) + ;; + mvs*) + case $cc_basename in + cxx*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall' + ;; + *) + ;; + esac + ;; + netbsd* | netbsdelf*-gnu) + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' + ;; + RCC*) + # Rational C++ 2.4.1 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + cxx*) + # Digital/Compaq C++ + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + *) + ;; + esac + ;; + psos*) + ;; + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + gcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + ;; + *) + ;; + esac + ;; + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + lcc*) + # Lucid + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + *) + ;; + esac + ;; + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + ;; + *) + ;; + esac + ;; + vxworks*) + ;; + *) + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + esac + fi +], +[ + if test "$GCC" = yes; then + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the `-m68020' flag to GCC prevents building anything better, + # like `-m68040'. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + ;; + + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + _LT_TAGVAR(lt_prog_compiler_static, $1)= + ;; + + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + ;; + + interix[[3-9]]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + + msdosdjgpp*) + # Just because we use GCC doesn't mean we suddenly get shared libraries + # on systems that don't support them. + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + enable_shared=no + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic + fi + ;; + + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + + case $cc_basename in + nvcc*) # Cuda Compiler Driver 2.2 + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker ' + if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" + fi + ;; + esac + else + # PORTME Check for flag to pass linker flags through the system compiler. + case $host_os in + aix*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + else + _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' + fi + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + + hpux9* | hpux10* | hpux11*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but + # not for PA HP-UX. + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + ;; + esac + # Is there a better lt_prog_compiler_static that works with the bundled CC? + _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive' + ;; + + irix5* | irix6* | nonstopux*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # PIC (with -KPIC) is the default. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + # old Intel for x86_64 which still supported -KPIC. + ecc*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # icc used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + icc* | ifort*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # Lahey Fortran 8.1. + lf95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared' + _LT_TAGVAR(lt_prog_compiler_static, $1)='--static' + ;; + nagfor*) + # NAG Fortran compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group compilers (*not* the Pentium gcc compiler, + # which looks to be a dead project) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + ccc*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # All Alpha code is PIC. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + xl* | bgxl* | bgf* | mpixl*) + # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*) + # Sun Fortran 8.3 passes all unrecognized flags to the linker + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='' + ;; + *Sun\ F* | *Sun*Fortran*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + *Sun\ C*) + # Sun C 5.9 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + ;; + *Intel*\ [[CF]]*Compiler*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + *Portland\ Group*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + esac + ;; + + newsos6) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + + osf3* | osf4* | osf5*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # All OSF/1 code is PIC. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + rdos*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + solaris*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + case $cc_basename in + f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';; + *) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';; + esac + ;; + + sunos4*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + sysv4 | sysv4.2uw2* | sysv4.3*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + sysv4*MP*) + if test -d /usr/nec ;then + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + ;; + + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + unicos*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + + uts4*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + *) + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + esac + fi +]) +case $host_os in + # For platforms which do not support PIC, -DPIC is meaningless: + *djgpp*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])" + ;; +esac + +AC_CACHE_CHECK([for $compiler option to produce PIC], + [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)], + [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)]) +_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1) + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then + _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works], + [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)], + [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [], + [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in + "" | " "*) ;; + *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;; + esac], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no]) +fi +_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1], + [Additional compiler flags for building library objects]) + +_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1], + [How to pass a linker flag through the compiler]) +# +# Check to make sure the static flag actually works. +# +wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\" +_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works], + _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1), + $lt_tmp_static_flag, + [], + [_LT_TAGVAR(lt_prog_compiler_static, $1)=]) +_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1], + [Compiler flag to prevent dynamic linking]) +])# _LT_COMPILER_PIC + + +# _LT_LINKER_SHLIBS([TAGNAME]) +# ---------------------------- +# See if the linker supports building shared libraries. +m4_defun([_LT_LINKER_SHLIBS], +[AC_REQUIRE([LT_PATH_LD])dnl +AC_REQUIRE([LT_PATH_NM])dnl +m4_require([_LT_PATH_MANIFEST_TOOL])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl +m4_require([_LT_TAG_COMPILER])dnl +AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries]) +m4_if([$1], [CXX], [ + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'] + case $host_os in + aix[[4-9]]*) + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to AIX nm, but means don't demangle with GNU nm + # Also, AIX nm treats weak defined symbols like other global defined + # symbols, whereas GNU nm marks them as "W". + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + else + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + fi + ;; + pw32*) + _LT_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds" + ;; + cygwin* | mingw* | cegcc*) + case $cc_basename in + cl*) + _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + ;; + *) + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'] + ;; + esac + ;; + linux* | k*bsd*-gnu | gnu*) + _LT_TAGVAR(link_all_deplibs, $1)=no + ;; + *) + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + ;; + esac +], [ + runpath_var= + _LT_TAGVAR(allow_undefined_flag, $1)= + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(archive_cmds, $1)= + _LT_TAGVAR(archive_expsym_cmds, $1)= + _LT_TAGVAR(compiler_needs_object, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + _LT_TAGVAR(export_dynamic_flag_spec, $1)= + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(hardcode_automatic, $1)=no + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)= + _LT_TAGVAR(hardcode_libdir_separator, $1)= + _LT_TAGVAR(hardcode_minus_L, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported + _LT_TAGVAR(inherit_rpath, $1)=no + _LT_TAGVAR(link_all_deplibs, $1)=unknown + _LT_TAGVAR(module_cmds, $1)= + _LT_TAGVAR(module_expsym_cmds, $1)= + _LT_TAGVAR(old_archive_from_new_cmds, $1)= + _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)= + _LT_TAGVAR(thread_safe_flag_spec, $1)= + _LT_TAGVAR(whole_archive_flag_spec, $1)= + # include_expsyms should be a list of space-separated symbols to be *always* + # included in the symbol list + _LT_TAGVAR(include_expsyms, $1)= + # exclude_expsyms can be an extended regexp of symbols to exclude + # it will be wrapped by ` (' and `)$', so one must not match beginning or + # end of line. Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc', + # as well as any symbol that contains `d'. + _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'] + # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out + # platforms (ab)use it in PIC code, but their linkers get confused if + # the symbol is explicitly referenced. Since portable code cannot + # rely on this symbol name, it's probably fine to never include it in + # preloaded symbol tables. + # Exclude shared library initialization/finalization symbols. +dnl Note also adjust exclude_expsyms for C++ above. + extract_expsyms_cmds= + + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + # FIXME: the MSVC++ port hasn't been tested in a loooong time + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + if test "$GCC" != yes; then + with_gnu_ld=no + fi + ;; + interix*) + # we just hope/assume this is gcc and not c89 (= MSVC++) + with_gnu_ld=yes + ;; + openbsd*) + with_gnu_ld=no + ;; + linux* | k*bsd*-gnu | gnu*) + _LT_TAGVAR(link_all_deplibs, $1)=no + ;; + esac + + _LT_TAGVAR(ld_shlibs, $1)=yes + + # On some targets, GNU ld is compatible enough with the native linker + # that we're better off using the native interface for both. + lt_use_gnu_ld_interface=no + if test "$with_gnu_ld" = yes; then + case $host_os in + aix*) + # The AIX port of GNU ld has always aspired to compatibility + # with the native linker. However, as the warning in the GNU ld + # block says, versions before 2.19.5* couldn't really create working + # shared libraries, regardless of the interface used. + case `$LD -v 2>&1` in + *\ \(GNU\ Binutils\)\ 2.19.5*) ;; + *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;; + *\ \(GNU\ Binutils\)\ [[3-9]]*) ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + fi + + if test "$lt_use_gnu_ld_interface" = yes; then + # If archive_cmds runs LD, not CC, wlarc should be empty + wlarc='${wl}' + + # Set some defaults for GNU ld with shared library support. These + # are reset later if shared libraries are not supported. Putting them + # here allows them to be overridden if necessary. + runpath_var=LD_RUN_PATH + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + # ancient GNU ld didn't support --whole-archive et. al. + if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then + _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + supports_anon_versioning=no + case `$LD -v 2>&1` in + *GNU\ gold*) supports_anon_versioning=yes ;; + *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11 + *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ... + *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ... + *\ 2.11.*) ;; # other 2.11 versions + *) supports_anon_versioning=yes ;; + esac + + # See if GNU ld supports shared libraries. + case $host_os in + aix[[3-9]]*) + # On AIX/PPC, the GNU linker is very broken + if test "$host_cpu" != ia64; then + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: the GNU linker, at least up to release 2.19, is reported +*** to be unable to reliably create shared libraries on AIX. +*** Therefore, libtool is disabling shared libraries support. If you +*** really care for shared libraries, you may want to install binutils +*** 2.20 or above, or modify your PATH so that a non-GNU linker is found. +*** You will then need to restart the configuration process. + +_LT_EOF + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='' + ;; + m68k) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless, + # as there is no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-all-symbols' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'] + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file (1st line + # is EXPORTS), use it as is; otherwise, prepend... + _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + haiku*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + interix[[3-9]]*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu) + tmp_diet=no + if test "$host_os" = linux-dietlibc; then + case $cc_basename in + diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn) + esac + fi + if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \ + && test "$tmp_diet" = no + then + tmp_addflag=' $pic_flag' + tmp_sharedflag='-shared' + case $cc_basename,$host_cpu in + pgcc*) # Portland Group C compiler + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + tmp_addflag=' $pic_flag' + ;; + pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group f77 and f90 compilers + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + tmp_addflag=' $pic_flag -Mnomain' ;; + ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64 + tmp_addflag=' -i_dynamic' ;; + efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64 + tmp_addflag=' -i_dynamic -nofor_main' ;; + ifc* | ifort*) # Intel Fortran compiler + tmp_addflag=' -nofor_main' ;; + lf95*) # Lahey Fortran 8.1 + _LT_TAGVAR(whole_archive_flag_spec, $1)= + tmp_sharedflag='--shared' ;; + xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below) + tmp_sharedflag='-qmkshrobj' + tmp_addflag= ;; + nvcc*) # Cuda Compiler Driver 2.2 + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + ;; + esac + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C 5.9 + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + tmp_sharedflag='-G' ;; + *Sun\ F*) # Sun Fortran 8.3 + tmp_sharedflag='-G' ;; + esac + _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + + if test "x$supports_anon_versioning" = xyes; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib' + fi + + case $cc_basename in + xlf* | bgf* | bgxlf* | mpixlf*) + # IBM XL Fortran 10.1 on PPC cannot create shared libs itself + _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib' + if test "x$supports_anon_versioning" = xyes; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib' + fi + ;; + esac + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + netbsd* | netbsdelf*-gnu) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' + wlarc= + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + fi + ;; + + solaris*) + if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: The releases 2.8.* of the GNU linker cannot reliably +*** create shared libraries on Solaris systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.9.1 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) + case `$LD -v 2>&1` in + *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*) + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not +*** reliably create shared libraries on SCO systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.16.91.0.3 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + ;; + *) + # For security reasons, it is highly recommended that you always + # use absolute paths for naming shared libraries, and exclude the + # DT_RUNPATH tag from executables and libraries. But doing so + # requires that you compile everything twice, which is a pain. + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + sunos4*) + _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' + wlarc= + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + + if test "$_LT_TAGVAR(ld_shlibs, $1)" = no; then + runpath_var= + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)= + _LT_TAGVAR(export_dynamic_flag_spec, $1)= + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + else + # PORTME fill in a description of your system's linker (not GNU ld) + case $host_os in + aix3*) + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' + # Note: this linker hardcodes the directories in LIBPATH if there + # are no directories specified by -L. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then + # Neither direct hardcoding nor static linking is supported with a + # broken collect2. + _LT_TAGVAR(hardcode_direct, $1)=unsupported + fi + ;; + + aix[[4-9]]*) + if test "$host_cpu" = ia64; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag="" + else + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to AIX nm, but means don't demangle with GNU nm + # Also, AIX nm treats weak defined symbols like other global + # defined symbols, whereas GNU nm marks them as "W". + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + else + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + fi + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # need to do runtime linking. + case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*) + for ld_flag in $LDFLAGS; do + if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then + aix_use_runtimelinking=yes + break + fi + done + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + _LT_TAGVAR(archive_cmds, $1)='' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='${wl}-f,' + + if test "$GCC" = yes; then + case $host_os in aix4.[[012]]|aix4.[[012]].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`${CC} -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + _LT_TAGVAR(hardcode_direct, $1)=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)= + fi + ;; + esac + shared_flag='-shared' + if test "$aix_use_runtimelinking" = yes; then + shared_flag="$shared_flag "'${wl}-G' + fi + _LT_TAGVAR(link_all_deplibs, $1)=no + else + # not using gcc + if test "$host_cpu" = ia64; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test "$aix_use_runtimelinking" = yes; then + shared_flag='${wl}-G' + else + shared_flag='${wl}-bM:SRE' + fi + fi + fi + + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to export. + _LT_TAGVAR(always_export_symbols, $1)=yes + if test "$aix_use_runtimelinking" = yes; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(allow_undefined_flag, $1)='-berok' + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath" + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag" + else + if test "$host_cpu" = ia64; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib' + _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok' + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok' + if test "$with_gnu_ld" = yes; then + # We only use this code for GNU lds that support --whole-archive. + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + # This is similar to how AIX traditionally builds its shared libraries. + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname' + fi + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='' + ;; + m68k) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + ;; + + bsdi[[45]]*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + case $cc_basename in + cl*) + # Native MSVC + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames=' + _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp; + else + sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols' + # Don't use ranlib + _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' + _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile="$lt_outputfile.exe" + lt_tool_outputfile="$lt_tool_outputfile.exe" + ;; + esac~ + if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # Assume MSVC wrapper + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' + # The linker will automatically build a .lib file if we build a DLL. + _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + # FIXME: Should let the user specify the lib program. + _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + esac + ;; + + darwin* | rhapsody*) + _LT_DARWIN_LINKER_FEATURES($1) + ;; + + dgux*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor + # support. Future versions do this automatically, but an explicit c++rt0.o + # does not break anything, and helps significantly (at the cost of a little + # extra space). + freebsd2.2*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # Unfortunately, older versions of FreeBSD 2 do not have this feature. + freebsd2.*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # FreeBSD 3 and greater uses gcc -shared to do shared libraries. + freebsd* | dragonfly*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + hpux9*) + if test "$GCC" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + else + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_direct, $1)=yes + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + ;; + + hpux10*) + if test "$GCC" = yes && test "$with_gnu_ld" = no; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' + fi + if test "$with_gnu_ld" = no; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + fi + ;; + + hpux11*) + if test "$GCC" = yes && test "$with_gnu_ld" = no; then + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + else + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + m4_if($1, [], [ + # Older versions of the 11.00 compiler do not understand -b yet + # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) + _LT_LINKER_OPTION([if $CC understands -b], + _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b], + [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'], + [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])], + [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags']) + ;; + esac + fi + if test "$with_gnu_ld" = no; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + case $host_cpu in + hppa*64*|ia64*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + *) + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + fi + ;; + + irix5* | irix6* | nonstopux*) + if test "$GCC" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + # Try to use the -exported_symbol ld option, if it does not + # work, assume that -exports_file does not work either and + # implicitly export all symbols. + # This should be the same for all languages, so no per-tag cache variable. + AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol], + [lt_cv_irix_exported_symbol], + [save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null" + AC_LINK_IFELSE( + [AC_LANG_SOURCE( + [AC_LANG_CASE([C], [[int foo (void) { return 0; }]], + [C++], [[int foo (void) { return 0; }]], + [Fortran 77], [[ + subroutine foo + end]], + [Fortran], [[ + subroutine foo + end]])])], + [lt_cv_irix_exported_symbol=yes], + [lt_cv_irix_exported_symbol=no]) + LDFLAGS="$save_LDFLAGS"]) + if test "$lt_cv_irix_exported_symbol" = yes; then + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib' + fi + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(inherit_rpath, $1)=yes + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + netbsd* | netbsdelf*-gnu) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out + else + _LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + newsos6) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *nto* | *qnx*) + ;; + + openbsd*) + if test -f /usr/libexec/ld.so; then + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + else + case $host_os in + openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + ;; + esac + fi + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_from_new_cmds, $1)='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def' + ;; + + osf3*) + if test "$GCC" = yes; then + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + else + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + ;; + + osf4* | osf5*) # as osf3* with the addition of -msym flag + if test "$GCC" = yes; then + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + else + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ + $CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp' + + # Both c and cxx compiler support -rpath directly + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + ;; + + solaris*) + _LT_TAGVAR(no_undefined_flag, $1)=' -z defs' + if test "$GCC" = yes; then + wlarc='${wl}' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + else + case `$CC -V 2>&1` in + *"Compilers 5.0"*) + wlarc='' + _LT_TAGVAR(archive_cmds, $1)='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' + ;; + *) + wlarc='${wl}' + _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + ;; + esac + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands `-z linker_flag'. GCC discards it without `$wl', + # but is careful enough not to reorder. + # Supported since Solaris 2.6 (maybe 2.5.1?) + if test "$GCC" = yes; then + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' + fi + ;; + esac + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + sunos4*) + if test "x$host_vendor" = xsequent; then + # Use $CC to link under sequent, because it throws in some extra .o + # files that make .init and .fini sections work. + _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + sysv4) + case $host_vendor in + sni) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true??? + ;; + siemens) + ## LD is ld it makes a PLAMLIB + ## CC just makes a GrossModule. + _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs' + _LT_TAGVAR(hardcode_direct, $1)=no + ;; + motorola) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie + ;; + esac + runpath_var='LD_RUN_PATH' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + sysv4.3*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var=LD_RUN_PATH + hardcode_runpath_var=yes + _LT_TAGVAR(ld_shlibs, $1)=yes + fi + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*) + _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var='LD_RUN_PATH' + + if test "$GCC" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We can NOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text' + _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport' + runpath_var='LD_RUN_PATH' + + if test "$GCC" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + uts4*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *) + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + + if test x$host_vendor = xsni; then + case $host in + sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Blargedynsym' + ;; + esac + fi + fi +]) +AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)]) +test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no + +_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld + +_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl +_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl +_LT_DECL([], [extract_expsyms_cmds], [2], + [The commands to extract the exported symbol list from a shared archive]) + +# +# Do we need to explicitly link libc? +# +case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in +x|xyes) + # Assume -lc should be added + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + + if test "$enable_shared" = yes && test "$GCC" = yes; then + case $_LT_TAGVAR(archive_cmds, $1) in + *'~'*) + # FIXME: we may have to deal with multi-command sequences. + ;; + '$CC '*) + # Test whether the compiler implicitly links with -lc since on some + # systems, -lgcc has to come before -lc. If gcc already passes -lc + # to ld, don't add -lc before -lgcc. + AC_CACHE_CHECK([whether -lc should be explicitly linked in], + [lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1), + [$RM conftest* + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + if AC_TRY_EVAL(ac_compile) 2>conftest.err; then + soname=conftest + lib=conftest + libobjs=conftest.$ac_objext + deplibs= + wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) + pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1) + compiler_flags=-v + linker_flags=-v + verstring= + output_objdir=. + libname=conftest + lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1) + _LT_TAGVAR(allow_undefined_flag, $1)= + if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) + then + lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no + else + lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes + fi + _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag + else + cat conftest.err 1>&5 + fi + $RM conftest* + ]) + _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1) + ;; + esac + fi + ;; +esac + +_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0], + [Whether or not to add -lc for building shared libraries]) +_LT_TAGDECL([allow_libtool_libs_with_static_runtimes], + [enable_shared_with_static_runtimes], [0], + [Whether or not to disallow shared libs when runtime libs are static]) +_LT_TAGDECL([], [export_dynamic_flag_spec], [1], + [Compiler flag to allow reflexive dlopens]) +_LT_TAGDECL([], [whole_archive_flag_spec], [1], + [Compiler flag to generate shared objects directly from archives]) +_LT_TAGDECL([], [compiler_needs_object], [1], + [Whether the compiler copes with passing no objects directly]) +_LT_TAGDECL([], [old_archive_from_new_cmds], [2], + [Create an old-style archive from a shared archive]) +_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2], + [Create a temporary old-style archive to link instead of a shared archive]) +_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive]) +_LT_TAGDECL([], [archive_expsym_cmds], [2]) +_LT_TAGDECL([], [module_cmds], [2], + [Commands used to build a loadable module if different from building + a shared archive.]) +_LT_TAGDECL([], [module_expsym_cmds], [2]) +_LT_TAGDECL([], [with_gnu_ld], [1], + [Whether we are building with GNU ld or not]) +_LT_TAGDECL([], [allow_undefined_flag], [1], + [Flag that allows shared libraries with undefined symbols to be built]) +_LT_TAGDECL([], [no_undefined_flag], [1], + [Flag that enforces no undefined symbols]) +_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1], + [Flag to hardcode $libdir into a binary during linking. + This must work even if $libdir does not exist]) +_LT_TAGDECL([], [hardcode_libdir_separator], [1], + [Whether we need a single "-rpath" flag with a separated argument]) +_LT_TAGDECL([], [hardcode_direct], [0], + [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes + DIR into the resulting binary]) +_LT_TAGDECL([], [hardcode_direct_absolute], [0], + [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes + DIR into the resulting binary and the resulting library dependency is + "absolute", i.e impossible to change by setting ${shlibpath_var} if the + library is relocated]) +_LT_TAGDECL([], [hardcode_minus_L], [0], + [Set to "yes" if using the -LDIR flag during linking hardcodes DIR + into the resulting binary]) +_LT_TAGDECL([], [hardcode_shlibpath_var], [0], + [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR + into the resulting binary]) +_LT_TAGDECL([], [hardcode_automatic], [0], + [Set to "yes" if building a shared library automatically hardcodes DIR + into the library and all subsequent libraries and executables linked + against it]) +_LT_TAGDECL([], [inherit_rpath], [0], + [Set to yes if linker adds runtime paths of dependent libraries + to runtime path list]) +_LT_TAGDECL([], [link_all_deplibs], [0], + [Whether libtool must link a program against all its dependency libraries]) +_LT_TAGDECL([], [always_export_symbols], [0], + [Set to "yes" if exported symbols are required]) +_LT_TAGDECL([], [export_symbols_cmds], [2], + [The commands to list exported symbols]) +_LT_TAGDECL([], [exclude_expsyms], [1], + [Symbols that should not be listed in the preloaded symbols]) +_LT_TAGDECL([], [include_expsyms], [1], + [Symbols that must always be exported]) +_LT_TAGDECL([], [prelink_cmds], [2], + [Commands necessary for linking programs (against libraries) with templates]) +_LT_TAGDECL([], [postlink_cmds], [2], + [Commands necessary for finishing linking programs]) +_LT_TAGDECL([], [file_list_spec], [1], + [Specify filename containing input files]) +dnl FIXME: Not yet implemented +dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1], +dnl [Compiler flag to generate thread safe objects]) +])# _LT_LINKER_SHLIBS + + +# _LT_LANG_C_CONFIG([TAG]) +# ------------------------ +# Ensure that the configuration variables for a C compiler are suitably +# defined. These variables are subsequently used by _LT_CONFIG to write +# the compiler configuration to `libtool'. +m4_defun([_LT_LANG_C_CONFIG], +[m4_require([_LT_DECL_EGREP])dnl +lt_save_CC="$CC" +AC_LANG_PUSH(C) + +# Source file extension for C test sources. +ac_ext=c + +# Object file extension for compiled C test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="int some_variable = 0;" + +# Code to be used in simple link tests +lt_simple_link_test_code='int main(){return(0);}' + +_LT_TAG_COMPILER +# Save the default compiler, since it gets overwritten when the other +# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. +compiler_DEFAULT=$CC + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + LT_SYS_DLOPEN_SELF + _LT_CMD_STRIPLIB + + # Report which library types will actually be built + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test "$can_build_shared" = "no" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test "$enable_shared" = yes && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + + aix[[4-9]]*) + if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then + test "$enable_shared" = yes && enable_static=no + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test "$enable_shared" = yes || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_CONFIG($1) +fi +AC_LANG_POP +CC="$lt_save_CC" +])# _LT_LANG_C_CONFIG + + +# _LT_LANG_CXX_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for a C++ compiler are suitably +# defined. These variables are subsequently used by _LT_CONFIG to write +# the compiler configuration to `libtool'. +m4_defun([_LT_LANG_CXX_CONFIG], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_PATH_MANIFEST_TOOL])dnl +if test -n "$CXX" && ( test "X$CXX" != "Xno" && + ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) || + (test "X$CXX" != "Xg++"))) ; then + AC_PROG_CXXCPP +else + _lt_caught_CXX_error=yes +fi + +AC_LANG_PUSH(C++) +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(compiler_needs_object, $1)=no +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for C++ test sources. +ac_ext=cpp + +# Object file extension for compiled C++ test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the CXX compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test "$_lt_caught_CXX_error" != yes; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="int some_variable = 0;" + + # Code to be used in simple link tests + lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }' + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_CFLAGS=$CFLAGS + lt_save_LD=$LD + lt_save_GCC=$GCC + GCC=$GXX + lt_save_with_gnu_ld=$with_gnu_ld + lt_save_path_LD=$lt_cv_path_LD + if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then + lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx + else + $as_unset lt_cv_prog_gnu_ld + fi + if test -n "${lt_cv_path_LDCXX+set}"; then + lt_cv_path_LD=$lt_cv_path_LDCXX + else + $as_unset lt_cv_path_LD + fi + test -z "${LDCXX+set}" || LD=$LDCXX + CC=${CXX-"c++"} + CFLAGS=$CXXFLAGS + compiler=$CC + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + + if test -n "$compiler"; then + # We don't want -fno-exception when compiling C++ code, so set the + # no_builtin_flag separately + if test "$GXX" = yes; then + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' + else + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= + fi + + if test "$GXX" = yes; then + # Set up default GNU C++ configuration + + LT_PATH_LD + + # Check if GNU C++ uses GNU ld as the underlying linker, since the + # archiving commands below assume that GNU ld is being used. + if test "$with_gnu_ld" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + + # If archive_cmds runs LD, not CC, wlarc should be empty + # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to + # investigate it a little bit more. (MM) + wlarc='${wl}' + + # ancient GNU ld didn't support --whole-archive et. al. + if eval "`$CC -print-prog-name=ld` --help 2>&1" | + $GREP 'no-whole-archive' > /dev/null; then + _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + else + with_gnu_ld=no + wlarc= + + # A generic and very simple default shared library creation + # command for GNU C++ for the case where it uses the native + # linker, instead of GNU ld. If possible, this setting should + # overridden to take advantage of the native linker features on + # the platform it is being used on. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + fi + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + + else + GXX=no + with_gnu_ld=no + wlarc= + fi + + # PORTME: fill in a description of your system's C++ link characteristics + AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries]) + _LT_TAGVAR(ld_shlibs, $1)=yes + case $host_os in + aix3*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aix[[4-9]]*) + if test "$host_cpu" = ia64; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag="" + else + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # need to do runtime linking. + case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*) + for ld_flag in $LDFLAGS; do + case $ld_flag in + *-brtl*) + aix_use_runtimelinking=yes + break + ;; + esac + done + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + _LT_TAGVAR(archive_cmds, $1)='' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='${wl}-f,' + + if test "$GXX" = yes; then + case $host_os in aix4.[[012]]|aix4.[[012]].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`${CC} -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + _LT_TAGVAR(hardcode_direct, $1)=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)= + fi + esac + shared_flag='-shared' + if test "$aix_use_runtimelinking" = yes; then + shared_flag="$shared_flag "'${wl}-G' + fi + else + # not using gcc + if test "$host_cpu" = ia64; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test "$aix_use_runtimelinking" = yes; then + shared_flag='${wl}-G' + else + shared_flag='${wl}-bM:SRE' + fi + fi + fi + + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to + # export. + _LT_TAGVAR(always_export_symbols, $1)=yes + if test "$aix_use_runtimelinking" = yes; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(allow_undefined_flag, $1)='-berok' + # Determine the default libpath from the value encoded in an empty + # executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath" + + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag" + else + if test "$host_cpu" = ia64; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib' + _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok' + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok' + if test "$with_gnu_ld" = yes; then + # We only use this code for GNU lds that support --whole-archive. + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + # This is similar to how AIX traditionally builds its shared + # libraries. + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname' + fi + fi + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + chorus*) + case $cc_basename in + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + cygwin* | mingw* | pw32* | cegcc*) + case $GXX,$cc_basename in + ,cl* | no,cl*) + # Native MSVC + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames=' + _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + $SED -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp; + else + $SED -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + # Don't use ranlib + _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' + _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile="$lt_outputfile.exe" + lt_tool_outputfile="$lt_tool_outputfile.exe" + ;; + esac~ + func_to_tool_file "$lt_outputfile"~ + if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # g++ + # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless, + # as there is no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-all-symbols' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file (1st line + # is EXPORTS), use it as is; otherwise, prepend... + _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + darwin* | rhapsody*) + _LT_DARWIN_LINKER_FEATURES($1) + ;; + + dgux*) + case $cc_basename in + ec++*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + ghcx*) + # Green Hills C++ Compiler + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + freebsd2.*) + # C++ shared libraries reported to be fairly broken before + # switch to ELF + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + freebsd-elf*) + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + ;; + + freebsd* | dragonfly*) + # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF + # conventions + _LT_TAGVAR(ld_shlibs, $1)=yes + ;; + + haiku*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + hpux9*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH, + # but as the default + # location of the library. + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aCC*) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test "$GXX" = yes; then + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + hpux10*|hpux11*) + if test $with_gnu_ld = no; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + case $host_cpu in + hppa*64*|ia64*) + ;; + *) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + ;; + esac + fi + case $host_cpu in + hppa*64*|ia64*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + *) + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH, + # but as the default + # location of the library. + ;; + esac + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aCC*) + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test "$GXX" = yes; then + if test $with_gnu_ld = no; then + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + fi + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + interix[[3-9]]*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + irix5* | irix6*) + case $cc_basename in + CC*) + # SGI C++ + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + + # Archives containing C++ object files must be created using + # "CC -ar", where "CC" is the IRIX C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs' + ;; + *) + if test "$GXX" = yes; then + if test "$with_gnu_ld" = no; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` -o $lib' + fi + fi + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + esac + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(inherit_rpath, $1)=yes + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + + # Archives containing C++ object files must be created using + # "CC -Bstatic", where "CC" is the KAI C++ compiler. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' + ;; + icpc* | ecpc* ) + # Intel C++ + with_gnu_ld=yes + # version 8.0 and above of icpc choke on multiply defined symbols + # if we add $predep_objects and $postdep_objects, however 7.1 and + # earlier do not add the objects themselves. + case `$CC -V 2>&1` in + *"Version 7."*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + ;; + *) # Version 8.0 or newer + tmp_idyn= + case $host_cpu in + ia64*) tmp_idyn=' -i_dynamic';; + esac + _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + ;; + esac + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + case `$CC -V` in + *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*) + _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~ + compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"' + _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~ + $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~ + $RANLIB $oldlib' + _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ + $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ + $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib' + ;; + *) # Version 6 and above use weak symbols + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath ${wl}$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + ;; + cxx*) + # Compaq C++ + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib ${wl}-retain-symbols-file $wl$export_symbols' + + runpath_var=LD_RUN_PATH + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed' + ;; + xl* | mpixl* | bgxl*) + # IBM XL 8.0 on PPC, with GNU ld + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic' + _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + if test "x$supports_anon_versioning" = xyes; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib' + fi + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs' + _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + + # Not sure whether something based on + # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 + # would be better. + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs' + ;; + esac + ;; + esac + ;; + + lynxos*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + m88k*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + mvs*) + case $cc_basename in + cxx*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' + wlarc= + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + fi + # Workaround some broken pre-1.5 toolchains + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"' + ;; + + *nto* | *qnx*) + _LT_TAGVAR(ld_shlibs, $1)=yes + ;; + + openbsd2*) + # C++ shared libraries are fairly broken + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + openbsd*) + if test -f /usr/libexec/ld.so; then + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' + _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive' + fi + output_verbose_link_cmd=func_echo_all + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Archives containing C++ object files must be created using + # the KAI C++ compiler. + case $host in + osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;; + *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;; + esac + ;; + RCC*) + # Rational C++ 2.4.1 + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + cxx*) + case $host in + osf3*) + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && func_echo_all "${wl}-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + ;; + *) + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~ + echo "-hidden">> $lib.exp~ + $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~ + $RM $lib.exp' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test "$GXX" = yes && test "$with_gnu_ld" = no; then + _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*' + case $host in + osf3*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + psos*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + lcc*) + # Lucid + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + _LT_TAGVAR(archive_cmds_need_lc,$1)=yes + _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs' + _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands `-z linker_flag'. + # Supported since Solaris 2.6 (maybe 2.5.1?) + _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' + ;; + esac + _LT_TAGVAR(link_all_deplibs, $1)=yes + + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs' + ;; + gcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib' + + # The C++ compiler must be used to create the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs' + ;; + *) + # GNU C++ compiler with Solaris linker + if test "$GXX" = yes && test "$with_gnu_ld" = no; then + _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-z ${wl}defs' + if $CC --version | $GREP -v '^2\.7' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + else + # g++ 2.7 appears to require `-G' NOT `-shared' on this + # platform. + _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + fi + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $wl$libdir' + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract' + ;; + esac + fi + ;; + esac + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*) + _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We can NOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text' + _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport' + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~ + '"$_LT_TAGVAR(old_archive_cmds, $1)" + _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~ + '"$_LT_TAGVAR(reload_cmds, $1)" + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + vxworks*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + + AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)]) + test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no + + _LT_TAGVAR(GCC, $1)="$GXX" + _LT_TAGVAR(LD, $1)="$LD" + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_SYS_HIDDEN_LIBDEPS($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS + LDCXX=$LD + LD=$lt_save_LD + GCC=$lt_save_GCC + with_gnu_ld=$lt_save_with_gnu_ld + lt_cv_path_LDCXX=$lt_cv_path_LD + lt_cv_path_LD=$lt_save_path_LD + lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld + lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld +fi # test "$_lt_caught_CXX_error" != yes + +AC_LANG_POP +])# _LT_LANG_CXX_CONFIG + + +# _LT_FUNC_STRIPNAME_CNF +# ---------------------- +# func_stripname_cnf prefix suffix name +# strip PREFIX and SUFFIX off of NAME. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +# +# This function is identical to the (non-XSI) version of func_stripname, +# except this one can be used by m4 code that may be executed by configure, +# rather than the libtool script. +m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl +AC_REQUIRE([_LT_DECL_SED]) +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH]) +func_stripname_cnf () +{ + case ${2} in + .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;; + *) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;; + esac +} # func_stripname_cnf +])# _LT_FUNC_STRIPNAME_CNF + +# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME]) +# --------------------------------- +# Figure out "hidden" library dependencies from verbose +# compiler output when linking a shared library. +# Parse the compiler output and extract the necessary +# objects, libraries and library flags. +m4_defun([_LT_SYS_HIDDEN_LIBDEPS], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl +# Dependencies to place before and after the object being linked: +_LT_TAGVAR(predep_objects, $1)= +_LT_TAGVAR(postdep_objects, $1)= +_LT_TAGVAR(predeps, $1)= +_LT_TAGVAR(postdeps, $1)= +_LT_TAGVAR(compiler_lib_search_path, $1)= + +dnl we can't use the lt_simple_compile_test_code here, +dnl because it contains code intended for an executable, +dnl not a library. It's possible we should let each +dnl tag define a new lt_????_link_test_code variable, +dnl but it's only used here... +m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF +int a; +void foo (void) { a = 0; } +_LT_EOF +], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF +class Foo +{ +public: + Foo (void) { a = 0; } +private: + int a; +}; +_LT_EOF +], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF + subroutine foo + implicit none + integer*4 a + a=0 + return + end +_LT_EOF +], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF + subroutine foo + implicit none + integer a + a=0 + return + end +_LT_EOF +], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF +public class foo { + private int a; + public void bar (void) { + a = 0; + } +}; +_LT_EOF +], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF +package foo +func foo() { +} +_LT_EOF +]) + +_lt_libdeps_save_CFLAGS=$CFLAGS +case "$CC $CFLAGS " in #( +*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;; +*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;; +*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;; +esac + +dnl Parse the compiler output and extract the necessary +dnl objects, libraries and library flags. +if AC_TRY_EVAL(ac_compile); then + # Parse the compiler output and extract the necessary + # objects, libraries and library flags. + + # Sentinel used to keep track of whether or not we are before + # the conftest object file. + pre_test_object_deps_done=no + + for p in `eval "$output_verbose_link_cmd"`; do + case ${prev}${p} in + + -L* | -R* | -l*) + # Some compilers place space between "-{L,R}" and the path. + # Remove the space. + if test $p = "-L" || + test $p = "-R"; then + prev=$p + continue + fi + + # Expand the sysroot to ease extracting the directories later. + if test -z "$prev"; then + case $p in + -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;; + -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;; + -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;; + esac + fi + case $p in + =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;; + esac + if test "$pre_test_object_deps_done" = no; then + case ${prev} in + -L | -R) + # Internal compiler library paths should come after those + # provided the user. The postdeps already come after the + # user supplied libs so there is no need to process them. + if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then + _LT_TAGVAR(compiler_lib_search_path, $1)="${prev}${p}" + else + _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} ${prev}${p}" + fi + ;; + # The "-l" case would never come before the object being + # linked, so don't bother handling this case. + esac + else + if test -z "$_LT_TAGVAR(postdeps, $1)"; then + _LT_TAGVAR(postdeps, $1)="${prev}${p}" + else + _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} ${prev}${p}" + fi + fi + prev= + ;; + + *.lto.$objext) ;; # Ignore GCC LTO objects + *.$objext) + # This assumes that the test object file only shows up + # once in the compiler output. + if test "$p" = "conftest.$objext"; then + pre_test_object_deps_done=yes + continue + fi + + if test "$pre_test_object_deps_done" = no; then + if test -z "$_LT_TAGVAR(predep_objects, $1)"; then + _LT_TAGVAR(predep_objects, $1)="$p" + else + _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p" + fi + else + if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then + _LT_TAGVAR(postdep_objects, $1)="$p" + else + _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p" + fi + fi + ;; + + *) ;; # Ignore the rest. + + esac + done + + # Clean up. + rm -f a.out a.exe +else + echo "libtool.m4: error: problem compiling $1 test program" +fi + +$RM -f confest.$objext +CFLAGS=$_lt_libdeps_save_CFLAGS + +# PORTME: override above test on systems where it is broken +m4_if([$1], [CXX], +[case $host_os in +interix[[3-9]]*) + # Interix 3.5 installs completely hosed .la files for C++, so rather than + # hack all around it, let's just trust "g++" to DTRT. + _LT_TAGVAR(predep_objects,$1)= + _LT_TAGVAR(postdep_objects,$1)= + _LT_TAGVAR(postdeps,$1)= + ;; + +linux*) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + + # The more standards-conforming stlport4 library is + # incompatible with the Cstd library. Avoid specifying + # it if it's in CXXFLAGS. Ignore libCrun as + # -library=stlport4 depends on it. + case " $CXX $CXXFLAGS " in + *" -library=stlport4 "*) + solaris_use_stlport4=yes + ;; + esac + + if test "$solaris_use_stlport4" != yes; then + _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun' + fi + ;; + esac + ;; + +solaris*) + case $cc_basename in + CC* | sunCC*) + # The more standards-conforming stlport4 library is + # incompatible with the Cstd library. Avoid specifying + # it if it's in CXXFLAGS. Ignore libCrun as + # -library=stlport4 depends on it. + case " $CXX $CXXFLAGS " in + *" -library=stlport4 "*) + solaris_use_stlport4=yes + ;; + esac + + # Adding this requires a known-good setup of shared libraries for + # Sun compiler versions before 5.6, else PIC objects from an old + # archive will be linked into the output, leading to subtle bugs. + if test "$solaris_use_stlport4" != yes; then + _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun' + fi + ;; + esac + ;; +esac +]) + +case " $_LT_TAGVAR(postdeps, $1) " in +*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;; +esac + _LT_TAGVAR(compiler_lib_search_dirs, $1)= +if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then + _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | ${SED} -e 's! -L! !g' -e 's!^ !!'` +fi +_LT_TAGDECL([], [compiler_lib_search_dirs], [1], + [The directories searched by this compiler when creating a shared library]) +_LT_TAGDECL([], [predep_objects], [1], + [Dependencies to place before and after the objects being linked to + create a shared library]) +_LT_TAGDECL([], [postdep_objects], [1]) +_LT_TAGDECL([], [predeps], [1]) +_LT_TAGDECL([], [postdeps], [1]) +_LT_TAGDECL([], [compiler_lib_search_path], [1], + [The library search path used internally by the compiler when linking + a shared library]) +])# _LT_SYS_HIDDEN_LIBDEPS + + +# _LT_LANG_F77_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for a Fortran 77 compiler are +# suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to `libtool'. +m4_defun([_LT_LANG_F77_CONFIG], +[AC_LANG_PUSH(Fortran 77) +if test -z "$F77" || test "X$F77" = "Xno"; then + _lt_disable_F77=yes +fi + +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for f77 test sources. +ac_ext=f + +# Object file extension for compiled f77 test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the F77 compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test "$_lt_disable_F77" != yes; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="\ + subroutine t + return + end +" + + # Code to be used in simple link tests + lt_simple_link_test_code="\ + program t + end +" + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC="$CC" + lt_save_GCC=$GCC + lt_save_CFLAGS=$CFLAGS + CC=${F77-"f77"} + CFLAGS=$FFLAGS + compiler=$CC + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + GCC=$G77 + if test -n "$compiler"; then + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test "$can_build_shared" = "no" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test "$enable_shared" = yes && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + aix[[4-9]]*) + if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then + test "$enable_shared" = yes && enable_static=no + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test "$enable_shared" = yes || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_TAGVAR(GCC, $1)="$G77" + _LT_TAGVAR(LD, $1)="$LD" + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + GCC=$lt_save_GCC + CC="$lt_save_CC" + CFLAGS="$lt_save_CFLAGS" +fi # test "$_lt_disable_F77" != yes + +AC_LANG_POP +])# _LT_LANG_F77_CONFIG + + +# _LT_LANG_FC_CONFIG([TAG]) +# ------------------------- +# Ensure that the configuration variables for a Fortran compiler are +# suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to `libtool'. +m4_defun([_LT_LANG_FC_CONFIG], +[AC_LANG_PUSH(Fortran) + +if test -z "$FC" || test "X$FC" = "Xno"; then + _lt_disable_FC=yes +fi + +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for fc test sources. +ac_ext=${ac_fc_srcext-f} + +# Object file extension for compiled fc test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the FC compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test "$_lt_disable_FC" != yes; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="\ + subroutine t + return + end +" + + # Code to be used in simple link tests + lt_simple_link_test_code="\ + program t + end +" + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC="$CC" + lt_save_GCC=$GCC + lt_save_CFLAGS=$CFLAGS + CC=${FC-"f95"} + CFLAGS=$FCFLAGS + compiler=$CC + GCC=$ac_cv_fc_compiler_gnu + + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + + if test -n "$compiler"; then + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test "$can_build_shared" = "no" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test "$enable_shared" = yes && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + aix[[4-9]]*) + if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then + test "$enable_shared" = yes && enable_static=no + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test "$enable_shared" = yes || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_TAGVAR(GCC, $1)="$ac_cv_fc_compiler_gnu" + _LT_TAGVAR(LD, $1)="$LD" + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_SYS_HIDDEN_LIBDEPS($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + GCC=$lt_save_GCC + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS +fi # test "$_lt_disable_FC" != yes + +AC_LANG_POP +])# _LT_LANG_FC_CONFIG + + +# _LT_LANG_GCJ_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for the GNU Java Compiler compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to `libtool'. +m4_defun([_LT_LANG_GCJ_CONFIG], +[AC_REQUIRE([LT_PROG_GCJ])dnl +AC_LANG_SAVE + +# Source file extension for Java test sources. +ac_ext=java + +# Object file extension for compiled Java test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="class foo {}" + +# Code to be used in simple link tests +lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }' + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC=yes +CC=${GCJ-"gcj"} +CFLAGS=$GCJFLAGS +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_TAGVAR(LD, $1)="$LD" +_LT_CC_BASENAME([$compiler]) + +# GCJ did not exist at the time GCC didn't implicitly link libc in. +_LT_TAGVAR(archive_cmds_need_lc, $1)=no + +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds + +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) +fi + +AC_LANG_RESTORE + +GCC=$lt_save_GCC +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_GCJ_CONFIG + + +# _LT_LANG_GO_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for the GNU Go compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to `libtool'. +m4_defun([_LT_LANG_GO_CONFIG], +[AC_REQUIRE([LT_PROG_GO])dnl +AC_LANG_SAVE + +# Source file extension for Go test sources. +ac_ext=go + +# Object file extension for compiled Go test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="package main; func main() { }" + +# Code to be used in simple link tests +lt_simple_link_test_code='package main; func main() { }' + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC=yes +CC=${GOC-"gccgo"} +CFLAGS=$GOFLAGS +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_TAGVAR(LD, $1)="$LD" +_LT_CC_BASENAME([$compiler]) + +# Go did not exist at the time GCC didn't implicitly link libc in. +_LT_TAGVAR(archive_cmds_need_lc, $1)=no + +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds + +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) +fi + +AC_LANG_RESTORE + +GCC=$lt_save_GCC +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_GO_CONFIG + + +# _LT_LANG_RC_CONFIG([TAG]) +# ------------------------- +# Ensure that the configuration variables for the Windows resource compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to `libtool'. +m4_defun([_LT_LANG_RC_CONFIG], +[AC_REQUIRE([LT_PROG_RC])dnl +AC_LANG_SAVE + +# Source file extension for RC test sources. +ac_ext=rc + +# Object file extension for compiled RC test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }' + +# Code to be used in simple link tests +lt_simple_link_test_code="$lt_simple_compile_test_code" + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC="$CC" +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC= +CC=${RC-"windres"} +CFLAGS= +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_CC_BASENAME([$compiler]) +_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes + +if test -n "$compiler"; then + : + _LT_CONFIG($1) +fi + +GCC=$lt_save_GCC +AC_LANG_RESTORE +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_RC_CONFIG + + +# LT_PROG_GCJ +# ----------- +AC_DEFUN([LT_PROG_GCJ], +[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ], + [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ], + [AC_CHECK_TOOL(GCJ, gcj,) + test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2" + AC_SUBST(GCJFLAGS)])])[]dnl +]) + +# Old name: +AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_GCJ], []) + + +# LT_PROG_GO +# ---------- +AC_DEFUN([LT_PROG_GO], +[AC_CHECK_TOOL(GOC, gccgo,) +]) + + +# LT_PROG_RC +# ---------- +AC_DEFUN([LT_PROG_RC], +[AC_CHECK_TOOL(RC, windres,) +]) + +# Old name: +AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_RC], []) + + +# _LT_DECL_EGREP +# -------------- +# If we don't have a new enough Autoconf to choose the best grep +# available, choose the one first in the user's PATH. +m4_defun([_LT_DECL_EGREP], +[AC_REQUIRE([AC_PROG_EGREP])dnl +AC_REQUIRE([AC_PROG_FGREP])dnl +test -z "$GREP" && GREP=grep +_LT_DECL([], [GREP], [1], [A grep program that handles long lines]) +_LT_DECL([], [EGREP], [1], [An ERE matcher]) +_LT_DECL([], [FGREP], [1], [A literal string matcher]) +dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too +AC_SUBST([GREP]) +]) + + +# _LT_DECL_OBJDUMP +# -------------- +# If we don't have a new enough Autoconf to choose the best objdump +# available, choose the one first in the user's PATH. +m4_defun([_LT_DECL_OBJDUMP], +[AC_CHECK_TOOL(OBJDUMP, objdump, false) +test -z "$OBJDUMP" && OBJDUMP=objdump +_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper]) +AC_SUBST([OBJDUMP]) +]) + +# _LT_DECL_DLLTOOL +# ---------------- +# Ensure DLLTOOL variable is set. +m4_defun([_LT_DECL_DLLTOOL], +[AC_CHECK_TOOL(DLLTOOL, dlltool, false) +test -z "$DLLTOOL" && DLLTOOL=dlltool +_LT_DECL([], [DLLTOOL], [1], [DLL creation program]) +AC_SUBST([DLLTOOL]) +]) + +# _LT_DECL_SED +# ------------ +# Check for a fully-functional sed program, that truncates +# as few characters as possible. Prefer GNU sed if found. +m4_defun([_LT_DECL_SED], +[AC_PROG_SED +test -z "$SED" && SED=sed +Xsed="$SED -e 1s/^X//" +_LT_DECL([], [SED], [1], [A sed program that does not truncate output]) +_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"], + [Sed that helps us avoid accidentally triggering echo(1) options like -n]) +])# _LT_DECL_SED + +m4_ifndef([AC_PROG_SED], [ +# NOTE: This macro has been submitted for inclusion into # +# GNU Autoconf as AC_PROG_SED. When it is available in # +# a released version of Autoconf we should remove this # +# macro and use it instead. # + +m4_defun([AC_PROG_SED], +[AC_MSG_CHECKING([for a sed that does not truncate output]) +AC_CACHE_VAL(lt_cv_path_SED, +[# Loop through the user's path and test for sed and gsed. +# Then use that list of sed's as ones to test for truncation. +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for lt_ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then + lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext" + fi + done + done +done +IFS=$as_save_IFS +lt_ac_max=0 +lt_ac_count=0 +# Add /usr/xpg4/bin/sed as it is typically found on Solaris +# along with /bin/sed that truncates output. +for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do + test ! -f $lt_ac_sed && continue + cat /dev/null > conftest.in + lt_ac_count=0 + echo $ECHO_N "0123456789$ECHO_C" >conftest.in + # Check for GNU sed and select it if it is found. + if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then + lt_cv_path_SED=$lt_ac_sed + break + fi + while true; do + cat conftest.in conftest.in >conftest.tmp + mv conftest.tmp conftest.in + cp conftest.in conftest.nl + echo >>conftest.nl + $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break + cmp -s conftest.out conftest.nl || break + # 10000 chars as input seems more than enough + test $lt_ac_count -gt 10 && break + lt_ac_count=`expr $lt_ac_count + 1` + if test $lt_ac_count -gt $lt_ac_max; then + lt_ac_max=$lt_ac_count + lt_cv_path_SED=$lt_ac_sed + fi + done +done +]) +SED=$lt_cv_path_SED +AC_SUBST([SED]) +AC_MSG_RESULT([$SED]) +])#AC_PROG_SED +])#m4_ifndef + +# Old name: +AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_SED], []) + + +# _LT_CHECK_SHELL_FEATURES +# ------------------------ +# Find out whether the shell is Bourne or XSI compatible, +# or has some other useful features. +m4_defun([_LT_CHECK_SHELL_FEATURES], +[AC_MSG_CHECKING([whether the shell understands some XSI constructs]) +# Try some XSI features +xsi_shell=no +( _lt_dummy="a/b/c" + test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \ + = c,a/b,b/c, \ + && eval 'test $(( 1 + 1 )) -eq 2 \ + && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \ + && xsi_shell=yes +AC_MSG_RESULT([$xsi_shell]) +_LT_CONFIG_LIBTOOL_INIT([xsi_shell='$xsi_shell']) + +AC_MSG_CHECKING([whether the shell understands "+="]) +lt_shell_append=no +( foo=bar; set foo baz; eval "$[1]+=\$[2]" && test "$foo" = barbaz ) \ + >/dev/null 2>&1 \ + && lt_shell_append=yes +AC_MSG_RESULT([$lt_shell_append]) +_LT_CONFIG_LIBTOOL_INIT([lt_shell_append='$lt_shell_append']) + +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + lt_unset=unset +else + lt_unset=false +fi +_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl + +# test EBCDIC or ASCII +case `echo X|tr X '\101'` in + A) # ASCII based system + # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr + lt_SP2NL='tr \040 \012' + lt_NL2SP='tr \015\012 \040\040' + ;; + *) # EBCDIC based system + lt_SP2NL='tr \100 \n' + lt_NL2SP='tr \r\n \100\100' + ;; +esac +_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl +_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl +])# _LT_CHECK_SHELL_FEATURES + + +# _LT_PROG_FUNCTION_REPLACE (FUNCNAME, REPLACEMENT-BODY) +# ------------------------------------------------------ +# In `$cfgfile', look for function FUNCNAME delimited by `^FUNCNAME ()$' and +# '^} FUNCNAME ', and replace its body with REPLACEMENT-BODY. +m4_defun([_LT_PROG_FUNCTION_REPLACE], +[dnl { +sed -e '/^$1 ()$/,/^} # $1 /c\ +$1 ()\ +{\ +m4_bpatsubsts([$2], [$], [\\], [^\([ ]\)], [\\\1]) +} # Extended-shell $1 implementation' "$cfgfile" > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") +test 0 -eq $? || _lt_function_replace_fail=: +]) + + +# _LT_PROG_REPLACE_SHELLFNS +# ------------------------- +# Replace existing portable implementations of several shell functions with +# equivalent extended shell implementations where those features are available.. +m4_defun([_LT_PROG_REPLACE_SHELLFNS], +[if test x"$xsi_shell" = xyes; then + _LT_PROG_FUNCTION_REPLACE([func_dirname], [dnl + case ${1} in + */*) func_dirname_result="${1%/*}${2}" ;; + * ) func_dirname_result="${3}" ;; + esac]) + + _LT_PROG_FUNCTION_REPLACE([func_basename], [dnl + func_basename_result="${1##*/}"]) + + _LT_PROG_FUNCTION_REPLACE([func_dirname_and_basename], [dnl + case ${1} in + */*) func_dirname_result="${1%/*}${2}" ;; + * ) func_dirname_result="${3}" ;; + esac + func_basename_result="${1##*/}"]) + + _LT_PROG_FUNCTION_REPLACE([func_stripname], [dnl + # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are + # positional parameters, so assign one to ordinary parameter first. + func_stripname_result=${3} + func_stripname_result=${func_stripname_result#"${1}"} + func_stripname_result=${func_stripname_result%"${2}"}]) + + _LT_PROG_FUNCTION_REPLACE([func_split_long_opt], [dnl + func_split_long_opt_name=${1%%=*} + func_split_long_opt_arg=${1#*=}]) + + _LT_PROG_FUNCTION_REPLACE([func_split_short_opt], [dnl + func_split_short_opt_arg=${1#??} + func_split_short_opt_name=${1%"$func_split_short_opt_arg"}]) + + _LT_PROG_FUNCTION_REPLACE([func_lo2o], [dnl + case ${1} in + *.lo) func_lo2o_result=${1%.lo}.${objext} ;; + *) func_lo2o_result=${1} ;; + esac]) + + _LT_PROG_FUNCTION_REPLACE([func_xform], [ func_xform_result=${1%.*}.lo]) + + _LT_PROG_FUNCTION_REPLACE([func_arith], [ func_arith_result=$(( $[*] ))]) + + _LT_PROG_FUNCTION_REPLACE([func_len], [ func_len_result=${#1}]) +fi + +if test x"$lt_shell_append" = xyes; then + _LT_PROG_FUNCTION_REPLACE([func_append], [ eval "${1}+=\\${2}"]) + + _LT_PROG_FUNCTION_REPLACE([func_append_quoted], [dnl + func_quote_for_eval "${2}" +dnl m4 expansion turns \\\\ into \\, and then the shell eval turns that into \ + eval "${1}+=\\\\ \\$func_quote_for_eval_result"]) + + # Save a `func_append' function call where possible by direct use of '+=' + sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") + test 0 -eq $? || _lt_function_replace_fail=: +else + # Save a `func_append' function call even when '+=' is not available + sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \ + && mv -f "$cfgfile.tmp" "$cfgfile" \ + || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") + test 0 -eq $? || _lt_function_replace_fail=: +fi + +if test x"$_lt_function_replace_fail" = x":"; then + AC_MSG_WARN([Unable to substitute extended shell functions in $ofile]) +fi +]) + +# _LT_PATH_CONVERSION_FUNCTIONS +# ----------------------------- +# Determine which file name conversion functions should be used by +# func_to_host_file (and, implicitly, by func_to_host_path). These are needed +# for certain cross-compile configurations and native mingw. +m4_defun([_LT_PATH_CONVERSION_FUNCTIONS], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +AC_MSG_CHECKING([how to convert $build file names to $host format]) +AC_CACHE_VAL(lt_cv_to_host_file_cmd, +[case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 + ;; + esac + ;; + *-*-cygwin* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin + ;; + esac + ;; + * ) # unhandled hosts (and "normal" native builds) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; +esac +]) +to_host_file_cmd=$lt_cv_to_host_file_cmd +AC_MSG_RESULT([$lt_cv_to_host_file_cmd]) +_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd], + [0], [convert $build file names to $host format])dnl + +AC_MSG_CHECKING([how to convert $build file names to toolchain format]) +AC_CACHE_VAL(lt_cv_to_tool_file_cmd, +[#assume ordinary cross tools, or native build. +lt_cv_to_tool_file_cmd=func_convert_file_noop +case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 + ;; + esac + ;; +esac +]) +to_tool_file_cmd=$lt_cv_to_tool_file_cmd +AC_MSG_RESULT([$lt_cv_to_tool_file_cmd]) +_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd], + [0], [convert $build files to toolchain format])dnl +])# _LT_PATH_CONVERSION_FUNCTIONS + +# Helper functions for option handling. -*- Autoconf -*- +# +# Copyright (C) 2004, 2005, 2007, 2008, 2009 Free Software Foundation, +# Inc. +# Written by Gary V. Vaughan, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 7 ltoptions.m4 + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])]) + + +# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME) +# ------------------------------------------ +m4_define([_LT_MANGLE_OPTION], +[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])]) + + +# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME) +# --------------------------------------- +# Set option OPTION-NAME for macro MACRO-NAME, and if there is a +# matching handler defined, dispatch to it. Other OPTION-NAMEs are +# saved as a flag. +m4_define([_LT_SET_OPTION], +[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl +m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]), + _LT_MANGLE_DEFUN([$1], [$2]), + [m4_warning([Unknown $1 option `$2'])])[]dnl +]) + + +# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET]) +# ------------------------------------------------------------ +# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. +m4_define([_LT_IF_OPTION], +[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])]) + + +# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET) +# ------------------------------------------------------- +# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME +# are set. +m4_define([_LT_UNLESS_OPTIONS], +[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), + [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option), + [m4_define([$0_found])])])[]dnl +m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3 +])[]dnl +]) + + +# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST) +# ---------------------------------------- +# OPTION-LIST is a space-separated list of Libtool options associated +# with MACRO-NAME. If any OPTION has a matching handler declared with +# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about +# the unknown option and exit. +m4_defun([_LT_SET_OPTIONS], +[# Set options +m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), + [_LT_SET_OPTION([$1], _LT_Option)]) + +m4_if([$1],[LT_INIT],[ + dnl + dnl Simply set some default values (i.e off) if boolean options were not + dnl specified: + _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no + ]) + _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no + ]) + dnl + dnl If no reference was made to various pairs of opposing options, then + dnl we run the default mode handler for the pair. For example, if neither + dnl `shared' nor `disable-shared' was passed, we enable building of shared + dnl archives by default: + _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED]) + _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC]) + _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC]) + _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install], + [_LT_ENABLE_FAST_INSTALL]) + ]) +])# _LT_SET_OPTIONS + + + +# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME) +# ----------------------------------------- +m4_define([_LT_MANGLE_DEFUN], +[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])]) + + +# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE) +# ----------------------------------------------- +m4_define([LT_OPTION_DEFINE], +[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl +])# LT_OPTION_DEFINE + + +# dlopen +# ------ +LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes +]) + +AU_DEFUN([AC_LIBTOOL_DLOPEN], +[_LT_SET_OPTION([LT_INIT], [dlopen]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the `dlopen' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], []) + + +# win32-dll +# --------- +# Declare package support for building win32 dll's. +LT_OPTION_DEFINE([LT_INIT], [win32-dll], +[enable_win32_dll=yes + +case $host in +*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*) + AC_CHECK_TOOL(AS, as, false) + AC_CHECK_TOOL(DLLTOOL, dlltool, false) + AC_CHECK_TOOL(OBJDUMP, objdump, false) + ;; +esac + +test -z "$AS" && AS=as +_LT_DECL([], [AS], [1], [Assembler program])dnl + +test -z "$DLLTOOL" && DLLTOOL=dlltool +_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl + +test -z "$OBJDUMP" && OBJDUMP=objdump +_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl +])# win32-dll + +AU_DEFUN([AC_LIBTOOL_WIN32_DLL], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +_LT_SET_OPTION([LT_INIT], [win32-dll]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the `win32-dll' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], []) + + +# _LT_ENABLE_SHARED([DEFAULT]) +# ---------------------------- +# implement the --enable-shared flag, and supports the `shared' and +# `disable-shared' LT_INIT options. +# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'. +m4_define([_LT_ENABLE_SHARED], +[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([shared], + [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@], + [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_shared=yes ;; + no) enable_shared=no ;; + *) + enable_shared=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac], + [enable_shared=]_LT_ENABLE_SHARED_DEFAULT) + + _LT_DECL([build_libtool_libs], [enable_shared], [0], + [Whether or not to build shared libraries]) +])# _LT_ENABLE_SHARED + +LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])]) + +# Old names: +AC_DEFUN([AC_ENABLE_SHARED], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared]) +]) + +AC_DEFUN([AC_DISABLE_SHARED], +[_LT_SET_OPTION([LT_INIT], [disable-shared]) +]) + +AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)]) +AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_ENABLE_SHARED], []) +dnl AC_DEFUN([AM_DISABLE_SHARED], []) + + + +# _LT_ENABLE_STATIC([DEFAULT]) +# ---------------------------- +# implement the --enable-static flag, and support the `static' and +# `disable-static' LT_INIT options. +# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'. +m4_define([_LT_ENABLE_STATIC], +[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([static], + [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@], + [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_static=yes ;; + no) enable_static=no ;; + *) + enable_static=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_static=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac], + [enable_static=]_LT_ENABLE_STATIC_DEFAULT) + + _LT_DECL([build_old_libs], [enable_static], [0], + [Whether or not to build static libraries]) +])# _LT_ENABLE_STATIC + +LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])]) + +# Old names: +AC_DEFUN([AC_ENABLE_STATIC], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static]) +]) + +AC_DEFUN([AC_DISABLE_STATIC], +[_LT_SET_OPTION([LT_INIT], [disable-static]) +]) + +AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)]) +AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_ENABLE_STATIC], []) +dnl AC_DEFUN([AM_DISABLE_STATIC], []) + + + +# _LT_ENABLE_FAST_INSTALL([DEFAULT]) +# ---------------------------------- +# implement the --enable-fast-install flag, and support the `fast-install' +# and `disable-fast-install' LT_INIT options. +# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'. +m4_define([_LT_ENABLE_FAST_INSTALL], +[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([fast-install], + [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@], + [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_fast_install=yes ;; + no) enable_fast_install=no ;; + *) + enable_fast_install=no + # Look at the argument we got. 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If omitted, it defaults to `both'. +m4_define([_LT_WITH_PIC], +[AC_ARG_WITH([pic], + [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@], + [try to use only PIC/non-PIC objects @<:@default=use both@:>@])], + [lt_p=${PACKAGE-default} + case $withval in + yes|no) pic_mode=$withval ;; + *) + pic_mode=default + # Look at the argument we got. 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Vaughan, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 6 ltsugar.m4 + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) + + +# lt_join(SEP, ARG1, [ARG2...]) +# ----------------------------- +# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their +# associated separator. +# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier +# versions in m4sugar had bugs. +m4_define([lt_join], +[m4_if([$#], [1], [], + [$#], [2], [[$2]], + [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) +m4_define([_lt_join], +[m4_if([$#$2], [2], [], + [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) + + +# lt_car(LIST) +# lt_cdr(LIST) +# ------------ +# Manipulate m4 lists. +# These macros are necessary as long as will still need to support +# Autoconf-2.59 which quotes differently. +m4_define([lt_car], [[$1]]) +m4_define([lt_cdr], +[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], + [$#], 1, [], + [m4_dquote(m4_shift($@))])]) +m4_define([lt_unquote], $1) + + +# lt_append(MACRO-NAME, STRING, [SEPARATOR]) +# ------------------------------------------ +# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'. +# Note that neither SEPARATOR nor STRING are expanded; they are appended +# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). +# No SEPARATOR is output if MACRO-NAME was previously undefined (different +# than defined and empty). +# +# This macro is needed until we can rely on Autoconf 2.62, since earlier +# versions of m4sugar mistakenly expanded SEPARATOR but not STRING. +m4_define([lt_append], +[m4_define([$1], + m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) + + + +# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) +# ---------------------------------------------------------- +# Produce a SEP delimited list of all paired combinations of elements of +# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list +# has the form PREFIXmINFIXSUFFIXn. +# Needed until we can rely on m4_combine added in Autoconf 2.62. +m4_define([lt_combine], +[m4_if(m4_eval([$# > 3]), [1], + [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl +[[m4_foreach([_Lt_prefix], [$2], + [m4_foreach([_Lt_suffix], + ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, + [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) + + +# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) +# ----------------------------------------------------------------------- +# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited +# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. +m4_define([lt_if_append_uniq], +[m4_ifdef([$1], + [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], + [lt_append([$1], [$2], [$3])$4], + [$5])], + [lt_append([$1], [$2], [$3])$4])]) + + +# lt_dict_add(DICT, KEY, VALUE) +# ----------------------------- +m4_define([lt_dict_add], +[m4_define([$1($2)], [$3])]) + + +# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) +# -------------------------------------------- +m4_define([lt_dict_add_subkey], +[m4_define([$1($2:$3)], [$4])]) + + +# lt_dict_fetch(DICT, KEY, [SUBKEY]) +# ---------------------------------- +m4_define([lt_dict_fetch], +[m4_ifval([$3], + m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), + m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) + + +# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) +# ----------------------------------------------------------------- +m4_define([lt_if_dict_fetch], +[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], + [$5], + [$6])]) + + +# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) +# -------------------------------------------------------------- +m4_define([lt_dict_filter], +[m4_if([$5], [], [], + [lt_join(m4_quote(m4_default([$4], [[, ]])), + lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), + [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl +]) + +# ltversion.m4 -- version numbers -*- Autoconf -*- +# +# Copyright (C) 2004 Free Software Foundation, Inc. +# Written by Scott James Remnant, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# @configure_input@ + +# serial 3337 ltversion.m4 +# This file is part of GNU Libtool + +m4_define([LT_PACKAGE_VERSION], [2.4.2]) +m4_define([LT_PACKAGE_REVISION], [1.3337]) + +AC_DEFUN([LTVERSION_VERSION], +[macro_version='2.4.2' +macro_revision='1.3337' +_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?]) +_LT_DECL(, macro_revision, 0) +]) + +# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- +# +# Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc. +# Written by Scott James Remnant, 2004. +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 5 lt~obsolete.m4 + +# These exist entirely to fool aclocal when bootstrapping libtool. +# +# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN) +# which have later been changed to m4_define as they aren't part of the +# exported API, or moved to Autoconf or Automake where they belong. +# +# The trouble is, aclocal is a bit thick. 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We do so because we + # need to set the values for the 'am__tar' and 'am__untar' variables. + _am_tools=${am_cv_prog_tar_$1-$_am_tools} + + for _am_tool in $_am_tools; do + case $_am_tool in + gnutar) + for _am_tar in tar gnutar gtar; do + AM_RUN_LOG([$_am_tar --version]) && break + done + am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' + am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' + am__untar="$_am_tar -xf -" + ;; + plaintar) + # Must skip GNU tar: if it does not support --format= it doesn't create + # ustar tarball either. + (tar --version) >/dev/null 2>&1 && continue + am__tar='tar chf - "$$tardir"' + am__tar_='tar chf - "$tardir"' + am__untar='tar xf -' + ;; + pax) + am__tar='pax -L -x $1 -w "$$tardir"' + am__tar_='pax -L -x $1 -w "$tardir"' + am__untar='pax -r' + ;; + cpio) + am__tar='find "$$tardir" -print | cpio -o -H $1 -L' + am__tar_='find "$tardir" -print | cpio -o -H $1 -L' + am__untar='cpio -i -H $1 -d' + ;; + none) + am__tar=false + am__tar_=false + am__untar=false + ;; + esac + + # If the value was cached, stop now. We just wanted to have am__tar + # and am__untar set. + test -n "${am_cv_prog_tar_$1}" && break + + # tar/untar a dummy directory, and stop if the command works. + rm -rf conftest.dir + mkdir conftest.dir + echo GrepMe > conftest.dir/file + AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) + rm -rf conftest.dir + if test -s conftest.tar; then + AM_RUN_LOG([$am__untar /dev/null 2>&1 && break + fi + done + rm -rf conftest.dir + + AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) + AC_MSG_RESULT([$am_cv_prog_tar_$1])]) + +AC_SUBST([am__tar]) +AC_SUBST([am__untar]) +]) # _AM_PROG_TAR + diff --git a/shadowsocksr-libev/src/libev/autogen.sh b/shadowsocksr-libev/src/libev/autogen.sh new file mode 100644 index 000000000..8056ee7f9 --- /dev/null +++ b/shadowsocksr-libev/src/libev/autogen.sh @@ -0,0 +1,3 @@ +#!/bin/sh + +autoreconf --install --symlink --force diff --git a/shadowsocksr-libev/src/libev/cmake/configure.cmake b/shadowsocksr-libev/src/libev/cmake/configure.cmake new file mode 100644 index 000000000..25c482af2 --- /dev/null +++ b/shadowsocksr-libev/src/libev/cmake/configure.cmake @@ -0,0 +1,45 @@ +# Platform checks +include ( CheckFunctionExists ) +include ( CheckIncludeFiles ) + +check_include_files ( dlfcn.h HAVE_DLFCN_H ) +check_include_files ( inttypes.h HAVE_INTTYPES_H ) +check_include_files ( memory.h HAVE_MEMORY_H ) +check_include_files ( poll.h HAVE_POLL_H ) +check_include_files ( port.h HAVE_PORT_H ) +check_include_files ( stdint.h HAVE_STDINT_H ) +check_include_files ( stdlib.h HAVE_STDLIB_H ) +check_include_files ( strings.h HAVE_STRINGS_H ) +check_include_files ( string.h HAVE_STRING_H ) +check_include_files ( "sys/epoll.h" HAVE_SYS_EPOLL_H ) +check_include_files ( "sys/eventfd.h" HAVE_SYS_EVENTFD_H ) +check_include_files ( "sys/event.h" HAVE_SYS_EVENT_H ) +check_include_files ( "sys/inotify.h" HAVE_SYS_INOTIFY_H ) +check_include_files ( "sys/select.h" HAVE_SYS_SELECT_H ) +check_include_files ( "sys/signalfd.h" HAVE_SYS_SIGNALFD_H ) +check_include_files ( "sys/stat.h" HAVE_SYS_STAT_H ) +check_include_files ( "sys/types.h" HAVE_SYS_TYPES_H ) +check_include_files ( "sys/syscall.h" HAVE_SYS_CALL_H ) +check_include_files ( unistd.h HAVE_UNISTD_H ) + +check_function_exists ( clock_gettime HAVE_CLOCK_GETTIME ) +check_function_exists ( epoll_ctl HAVE_EPOLL_CTL ) +check_function_exists ( eventfd HAVE_EVENTFD ) +check_function_exists ( floor HAVE_FLOOR ) +check_function_exists ( inotify_init HAVE_INOTIFY_INIT ) +check_function_exists ( kqueue HAVE_KQUEUE ) +check_function_exists ( nanosleep HAVE_NANOSLEEP ) +check_function_exists ( poll HAVE_POLL ) +check_function_exists ( port_create HAVE_PORT_CREATE ) +check_function_exists ( select HAVE_SELECT ) +check_function_exists ( signalfd HAVE_SIGNALFD ) + +find_library ( HAVE_LIBRT rt ) + +# Tweaks +if (${HAVE_SYS_CALL_H}) + set(HAVE_CLOCK_SYSCALL ${HAVE_CLOCK_GETTIME}) +endif () + + + diff --git a/shadowsocksr-libev/src/libev/cmake/dist.cmake b/shadowsocksr-libev/src/libev/cmake/dist.cmake new file mode 100644 index 000000000..eddf6fad5 --- /dev/null +++ b/shadowsocksr-libev/src/libev/cmake/dist.cmake @@ -0,0 +1,20 @@ +# LuaDist CMake utility library. +# Provides sane project defaults and macros common to LuaDist CMake builds. +# +# Copyright (C) 2007-2012 LuaDist. +# by David Manura, Peter Drahoš +# Redistribution and use of this file is allowed according to the terms of the MIT license. +# For details see the COPYRIGHT file distributed with LuaDist. +# Please note that the package source code is licensed under its own license. + + +# Tweaks and other defaults +# Setting CMAKE to use loose block and search for find modules in source directory +set ( CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true ) +set ( CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH} ) + +# In MSVC, prevent warnings that can occur when using standard libraries. +if ( MSVC ) + add_definitions ( -D_CRT_SECURE_NO_WARNINGS ) +endif () + diff --git a/shadowsocksr-libev/src/libev/config.h.cmake b/shadowsocksr-libev/src/libev/config.h.cmake new file mode 100644 index 000000000..73e5913d5 --- /dev/null +++ b/shadowsocksr-libev/src/libev/config.h.cmake @@ -0,0 +1,125 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define to 1 if you have the `clock_gettime' function. */ +#cmakedefine HAVE_CLOCK_GETTIME 1 + +/* Define to 1 to use the syscall interface for clock_gettime */ +#cmakedefine HAVE_CLOCK_SYSCALL 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_DLFCN_H 1 + +/* Define to 1 if you have the `epoll_ctl' function. */ +#cmakedefine HAVE_EPOLL_CTL 1 + +/* Define to 1 if you have the `eventfd' function. */ +#cmakedefine HAVE_EVENTFD 1 + +/* Define to 1 if the floor function is available */ +#cmakedefine HAVE_FLOOR 1 + +/* Define to 1 if you have the `inotify_init' function. */ +#cmakedefine HAVE_INOTIFY_INIT 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_INTTYPES_H 1 + +/* Define to 1 if you have the `kqueue' function. */ +#cmakedefine HAVE_KQUEUE 1 + +/* Define to 1 if you have the `rt' library (-lrt). */ +#cmakedefine HAVE_LIBRT 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_MEMORY_H 1 + +/* Define to 1 if you have the `nanosleep' function. */ +#cmakedefine HAVE_NANOSLEEP 1 + +/* Define to 1 if you have the `poll' function. */ +#cmakedefine HAVE_POLL 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_POLL_H 1 + +/* Define to 1 if you have the `port_create' function. */ +#cmakedefine HAVE_PORT_CREATE 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_PORT_H 1 + +/* Define to 1 if you have the `select' function. */ +#cmakedefine HAVE_SELECT 1 + +/* Define to 1 if you have the `signalfd' function. */ +#cmakedefine HAVE_SIGNALFD 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_STDINT_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_STDLIB_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_STRINGS_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_STRING_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_EPOLL_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_EVENTFD_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_EVENT_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_INOTIFY_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_SELECT_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_SIGNALFD_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_STAT_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_SYS_TYPES_H 1 + +/* Define to 1 if you have the header file. */ +#cmakedefine HAVE_UNISTD_H 1 + +/* Define to the sub-directory in which libtool stores uninstalled libraries. + */ +#define LT_OBJDIR ".libs/" + +/* Name of package */ +#define PACKAGE "libev" + +/* Define to the address where bug reports for this package should be sent. */ +#define PACKAGE_BUGREPORT "" + +/* Define to the full name of this package. */ +#define PACKAGE_NAME "" + +/* Define to the full name and version of this package. */ +#define PACKAGE_STRING "" + +/* Define to the one symbol short name of this package. */ +#define PACKAGE_TARNAME "" + +/* Define to the home page for this package. */ +#define PACKAGE_URL "" + +/* Define to the version of this package. */ +#define PACKAGE_VERSION "" + +/* Define to 1 if you have the ANSI C header files. */ +#define STDC_HEADERS 1 + +/* Version number of package */ +#cmakedefine VERSION "@DIST_VERSION@" diff --git a/shadowsocksr-libev/src/libev/configure.ac b/shadowsocksr-libev/src/libev/configure.ac new file mode 100644 index 000000000..dbdcda88d --- /dev/null +++ b/shadowsocksr-libev/src/libev/configure.ac @@ -0,0 +1,27 @@ +AC_INIT + +orig_CFLAGS="$CFLAGS" + +AC_CONFIG_SRCDIR([ev_epoll.c]) + +dnl also update ev.h! +AM_INIT_AUTOMAKE(libev,4.22) +AC_CONFIG_HEADERS([config.h]) +AM_MAINTAINER_MODE + +AC_PROG_CC + +dnl Supply default CFLAGS, if not specified +if test -z "$orig_CFLAGS"; then + if test x$GCC = xyes; then + CFLAGS="-g -O3" + fi +fi + +AC_PROG_INSTALL +AC_PROG_LIBTOOL + +m4_include([libev.m4]) + +AC_CONFIG_FILES([Makefile]) +AC_OUTPUT diff --git a/shadowsocksr-libev/src/libev/ev++.h b/shadowsocksr-libev/src/libev/ev++.h new file mode 100644 index 000000000..4f0a36ab0 --- /dev/null +++ b/shadowsocksr-libev/src/libev/ev++.h @@ -0,0 +1,816 @@ +/* + * libev simple C++ wrapper classes + * + * Copyright (c) 2007,2008,2010 Marc Alexander Lehmann + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modifica- + * tion, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- + * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- + * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- + * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License ("GPL") version 2 or any later version, + * in which case the provisions of the GPL are applicable instead of + * the above. If you wish to allow the use of your version of this file + * only under the terms of the GPL and not to allow others to use your + * version of this file under the BSD license, indicate your decision + * by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL. If you do not delete the + * provisions above, a recipient may use your version of this file under + * either the BSD or the GPL. + */ + +#ifndef EVPP_H__ +#define EVPP_H__ + +#ifdef EV_H +# include EV_H +#else +# include "ev.h" +#endif + +#ifndef EV_USE_STDEXCEPT +# define EV_USE_STDEXCEPT 1 +#endif + +#if EV_USE_STDEXCEPT +# include +#endif + +namespace ev { + + typedef ev_tstamp tstamp; + + enum { + UNDEF = EV_UNDEF, + NONE = EV_NONE, + READ = EV_READ, + WRITE = EV_WRITE, +#if EV_COMPAT3 + TIMEOUT = EV_TIMEOUT, +#endif + TIMER = EV_TIMER, + PERIODIC = EV_PERIODIC, + SIGNAL = EV_SIGNAL, + CHILD = EV_CHILD, + STAT = EV_STAT, + IDLE = EV_IDLE, + CHECK = EV_CHECK, + PREPARE = EV_PREPARE, + FORK = EV_FORK, + ASYNC = EV_ASYNC, + EMBED = EV_EMBED, +# undef ERROR // some systems stupidly #define ERROR + ERROR = EV_ERROR + }; + + enum + { + AUTO = EVFLAG_AUTO, + NOENV = EVFLAG_NOENV, + FORKCHECK = EVFLAG_FORKCHECK, + + SELECT = EVBACKEND_SELECT, + POLL = EVBACKEND_POLL, + EPOLL = EVBACKEND_EPOLL, + KQUEUE = EVBACKEND_KQUEUE, + DEVPOLL = EVBACKEND_DEVPOLL, + PORT = EVBACKEND_PORT + }; + + enum + { +#if EV_COMPAT3 + NONBLOCK = EVLOOP_NONBLOCK, + ONESHOT = EVLOOP_ONESHOT, +#endif + NOWAIT = EVRUN_NOWAIT, + ONCE = EVRUN_ONCE + }; + + enum how_t + { + ONE = EVBREAK_ONE, + ALL = EVBREAK_ALL + }; + + struct bad_loop +#if EV_USE_STDEXCEPT + : std::runtime_error +#endif + { +#if EV_USE_STDEXCEPT + bad_loop () + : std::runtime_error ("libev event loop cannot be initialized, bad value of LIBEV_FLAGS?") + { + } +#endif + }; + +#ifdef EV_AX +# undef EV_AX +#endif + +#ifdef EV_AX_ +# undef EV_AX_ +#endif + +#if EV_MULTIPLICITY +# define EV_AX raw_loop +# define EV_AX_ raw_loop, +#else +# define EV_AX +# define EV_AX_ +#endif + + struct loop_ref + { + loop_ref (EV_P) throw () +#if EV_MULTIPLICITY + : EV_AX (EV_A) +#endif + { + } + + bool operator == (const loop_ref &other) const throw () + { +#if EV_MULTIPLICITY + return EV_AX == other.EV_AX; +#else + return true; +#endif + } + + bool operator != (const loop_ref &other) const throw () + { +#if EV_MULTIPLICITY + return ! (*this == other); +#else + return false; +#endif + } + +#if EV_MULTIPLICITY + bool operator == (const EV_P) const throw () + { + return this->EV_AX == EV_A; + } + + bool operator != (const EV_P) const throw () + { + return (*this == EV_A); + } + + operator struct ev_loop * () const throw () + { + return EV_AX; + } + + operator const struct ev_loop * () const throw () + { + return EV_AX; + } + + bool is_default () const throw () + { + return EV_AX == ev_default_loop (0); + } +#endif + +#if EV_COMPAT3 + void loop (int flags = 0) + { + ev_run (EV_AX_ flags); + } + + void unloop (how_t how = ONE) throw () + { + ev_break (EV_AX_ how); + } +#endif + + void run (int flags = 0) + { + ev_run (EV_AX_ flags); + } + + void break_loop (how_t how = ONE) throw () + { + ev_break (EV_AX_ how); + } + + void post_fork () throw () + { + ev_loop_fork (EV_AX); + } + + unsigned int backend () const throw () + { + return ev_backend (EV_AX); + } + + tstamp now () const throw () + { + return ev_now (EV_AX); + } + + void ref () throw () + { + ev_ref (EV_AX); + } + + void unref () throw () + { + ev_unref (EV_AX); + } + +#if EV_FEATURE_API + unsigned int iteration () const throw () + { + return ev_iteration (EV_AX); + } + + unsigned int depth () const throw () + { + return ev_depth (EV_AX); + } + + void set_io_collect_interval (tstamp interval) throw () + { + ev_set_io_collect_interval (EV_AX_ interval); + } + + void set_timeout_collect_interval (tstamp interval) throw () + { + ev_set_timeout_collect_interval (EV_AX_ interval); + } +#endif + + // function callback + void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void *arg = 0) throw () + { + ev_once (EV_AX_ fd, events, timeout, cb, arg); + } + + // method callback + template + void once (int fd, int events, tstamp timeout, K *object) throw () + { + once (fd, events, timeout, method_thunk, object); + } + + // default method == operator () + template + void once (int fd, int events, tstamp timeout, K *object) throw () + { + once (fd, events, timeout, method_thunk, object); + } + + template + static void method_thunk (int revents, void *arg) + { + (static_cast(arg)->*method) + (revents); + } + + // no-argument method callback + template + void once (int fd, int events, tstamp timeout, K *object) throw () + { + once (fd, events, timeout, method_noargs_thunk, object); + } + + template + static void method_noargs_thunk (int revents, void *arg) + { + (static_cast(arg)->*method) + (); + } + + // simpler function callback + template + void once (int fd, int events, tstamp timeout) throw () + { + once (fd, events, timeout, simpler_func_thunk); + } + + template + static void simpler_func_thunk (int revents, void *arg) + { + (*cb) + (revents); + } + + // simplest function callback + template + void once (int fd, int events, tstamp timeout) throw () + { + once (fd, events, timeout, simplest_func_thunk); + } + + template + static void simplest_func_thunk (int revents, void *arg) + { + (*cb) + (); + } + + void feed_fd_event (int fd, int revents) throw () + { + ev_feed_fd_event (EV_AX_ fd, revents); + } + + void feed_signal_event (int signum) throw () + { + ev_feed_signal_event (EV_AX_ signum); + } + +#if EV_MULTIPLICITY + struct ev_loop* EV_AX; +#endif + + }; + +#if EV_MULTIPLICITY + struct dynamic_loop : loop_ref + { + + dynamic_loop (unsigned int flags = AUTO) throw (bad_loop) + : loop_ref (ev_loop_new (flags)) + { + if (!EV_AX) + throw bad_loop (); + } + + ~dynamic_loop () throw () + { + ev_loop_destroy (EV_AX); + EV_AX = 0; + } + + private: + + dynamic_loop (const dynamic_loop &); + + dynamic_loop & operator= (const dynamic_loop &); + + }; +#endif + + struct default_loop : loop_ref + { + default_loop (unsigned int flags = AUTO) throw (bad_loop) +#if EV_MULTIPLICITY + : loop_ref (ev_default_loop (flags)) +#endif + { + if ( +#if EV_MULTIPLICITY + !EV_AX +#else + !ev_default_loop (flags) +#endif + ) + throw bad_loop (); + } + + private: + default_loop (const default_loop &); + default_loop &operator = (const default_loop &); + }; + + inline loop_ref get_default_loop () throw () + { +#if EV_MULTIPLICITY + return ev_default_loop (0); +#else + return loop_ref (); +#endif + } + +#undef EV_AX +#undef EV_AX_ + +#undef EV_PX +#undef EV_PX_ +#if EV_MULTIPLICITY +# define EV_PX loop_ref EV_A +# define EV_PX_ loop_ref EV_A_ +#else +# define EV_PX +# define EV_PX_ +#endif + + template + struct base : ev_watcher + { + #if EV_MULTIPLICITY + EV_PX; + + // loop set + void set (EV_P) throw () + { + this->EV_A = EV_A; + } + #endif + + base (EV_PX) throw () + #if EV_MULTIPLICITY + : EV_A (EV_A) + #endif + { + ev_init (this, 0); + } + + void set_ (const void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) throw () + { + this->data = (void *)data; + ev_set_cb (static_cast(this), cb); + } + + // function callback + template + void set (void *data = 0) throw () + { + set_ (data, function_thunk); + } + + template + static void function_thunk (EV_P_ ev_watcher *w, int revents) + { + function + (*static_cast(w), revents); + } + + // method callback + template + void set (K *object) throw () + { + set_ (object, method_thunk); + } + + // default method == operator () + template + void set (K *object) throw () + { + set_ (object, method_thunk); + } + + template + static void method_thunk (EV_P_ ev_watcher *w, int revents) + { + (static_cast(w->data)->*method) + (*static_cast(w), revents); + } + + // no-argument callback + template + void set (K *object) throw () + { + set_ (object, method_noargs_thunk); + } + + template + static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents) + { + (static_cast(w->data)->*method) + (); + } + + void operator ()(int events = EV_UNDEF) + { + return + ev_cb (static_cast(this)) + (static_cast(this), events); + } + + bool is_active () const throw () + { + return ev_is_active (static_cast(this)); + } + + bool is_pending () const throw () + { + return ev_is_pending (static_cast(this)); + } + + void feed_event (int revents) throw () + { + ev_feed_event (EV_A_ static_cast(this), revents); + } + }; + + inline tstamp now (EV_P) throw () + { + return ev_now (EV_A); + } + + inline void delay (tstamp interval) throw () + { + ev_sleep (interval); + } + + inline int version_major () throw () + { + return ev_version_major (); + } + + inline int version_minor () throw () + { + return ev_version_minor (); + } + + inline unsigned int supported_backends () throw () + { + return ev_supported_backends (); + } + + inline unsigned int recommended_backends () throw () + { + return ev_recommended_backends (); + } + + inline unsigned int embeddable_backends () throw () + { + return ev_embeddable_backends (); + } + + inline void set_allocator (void *(*cb)(void *ptr, long size) throw ()) throw () + { + ev_set_allocator (cb); + } + + inline void set_syserr_cb (void (*cb)(const char *msg) throw ()) throw () + { + ev_set_syserr_cb (cb); + } + + #if EV_MULTIPLICITY + #define EV_CONSTRUCT(cppstem,cstem) \ + (EV_PX = get_default_loop ()) throw () \ + : base (EV_A) \ + { \ + } + #else + #define EV_CONSTRUCT(cppstem,cstem) \ + () throw () \ + { \ + } + #endif + + /* using a template here would require quite a few more lines, + * so a macro solution was chosen */ + #define EV_BEGIN_WATCHER(cppstem,cstem) \ + \ + struct cppstem : base \ + { \ + void start () throw () \ + { \ + ev_ ## cstem ## _start (EV_A_ static_cast(this)); \ + } \ + \ + void stop () throw () \ + { \ + ev_ ## cstem ## _stop (EV_A_ static_cast(this)); \ + } \ + \ + cppstem EV_CONSTRUCT(cppstem,cstem) \ + \ + ~cppstem () throw () \ + { \ + stop (); \ + } \ + \ + using base::set; \ + \ + private: \ + \ + cppstem (const cppstem &o); \ + \ + cppstem &operator =(const cppstem &o); \ + \ + public: + + #define EV_END_WATCHER(cppstem,cstem) \ + }; + + EV_BEGIN_WATCHER (io, io) + void set (int fd, int events) throw () + { + int active = is_active (); + if (active) stop (); + ev_io_set (static_cast(this), fd, events); + if (active) start (); + } + + void set (int events) throw () + { + int active = is_active (); + if (active) stop (); + ev_io_set (static_cast(this), fd, events); + if (active) start (); + } + + void start (int fd, int events) throw () + { + set (fd, events); + start (); + } + EV_END_WATCHER (io, io) + + EV_BEGIN_WATCHER (timer, timer) + void set (ev_tstamp after, ev_tstamp repeat = 0.) throw () + { + int active = is_active (); + if (active) stop (); + ev_timer_set (static_cast(this), after, repeat); + if (active) start (); + } + + void start (ev_tstamp after, ev_tstamp repeat = 0.) throw () + { + set (after, repeat); + start (); + } + + void again () throw () + { + ev_timer_again (EV_A_ static_cast(this)); + } + + ev_tstamp remaining () + { + return ev_timer_remaining (EV_A_ static_cast(this)); + } + EV_END_WATCHER (timer, timer) + + #if EV_PERIODIC_ENABLE + EV_BEGIN_WATCHER (periodic, periodic) + void set (ev_tstamp at, ev_tstamp interval = 0.) throw () + { + int active = is_active (); + if (active) stop (); + ev_periodic_set (static_cast(this), at, interval, 0); + if (active) start (); + } + + void start (ev_tstamp at, ev_tstamp interval = 0.) throw () + { + set (at, interval); + start (); + } + + void again () throw () + { + ev_periodic_again (EV_A_ static_cast(this)); + } + EV_END_WATCHER (periodic, periodic) + #endif + + #if EV_SIGNAL_ENABLE + EV_BEGIN_WATCHER (sig, signal) + void set (int signum) throw () + { + int active = is_active (); + if (active) stop (); + ev_signal_set (static_cast(this), signum); + if (active) start (); + } + + void start (int signum) throw () + { + set (signum); + start (); + } + EV_END_WATCHER (sig, signal) + #endif + + #if EV_CHILD_ENABLE + EV_BEGIN_WATCHER (child, child) + void set (int pid, int trace = 0) throw () + { + int active = is_active (); + if (active) stop (); + ev_child_set (static_cast(this), pid, trace); + if (active) start (); + } + + void start (int pid, int trace = 0) throw () + { + set (pid, trace); + start (); + } + EV_END_WATCHER (child, child) + #endif + + #if EV_STAT_ENABLE + EV_BEGIN_WATCHER (stat, stat) + void set (const char *path, ev_tstamp interval = 0.) throw () + { + int active = is_active (); + if (active) stop (); + ev_stat_set (static_cast(this), path, interval); + if (active) start (); + } + + void start (const char *path, ev_tstamp interval = 0.) throw () + { + stop (); + set (path, interval); + start (); + } + + void update () throw () + { + ev_stat_stat (EV_A_ static_cast(this)); + } + EV_END_WATCHER (stat, stat) + #endif + + #if EV_IDLE_ENABLE + EV_BEGIN_WATCHER (idle, idle) + void set () throw () { } + EV_END_WATCHER (idle, idle) + #endif + + #if EV_PREPARE_ENABLE + EV_BEGIN_WATCHER (prepare, prepare) + void set () throw () { } + EV_END_WATCHER (prepare, prepare) + #endif + + #if EV_CHECK_ENABLE + EV_BEGIN_WATCHER (check, check) + void set () throw () { } + EV_END_WATCHER (check, check) + #endif + + #if EV_EMBED_ENABLE + EV_BEGIN_WATCHER (embed, embed) + void set_embed (struct ev_loop *embedded_loop) throw () + { + int active = is_active (); + if (active) stop (); + ev_embed_set (static_cast(this), embedded_loop); + if (active) start (); + } + + void start (struct ev_loop *embedded_loop) throw () + { + set (embedded_loop); + start (); + } + + void sweep () + { + ev_embed_sweep (EV_A_ static_cast(this)); + } + EV_END_WATCHER (embed, embed) + #endif + + #if EV_FORK_ENABLE + EV_BEGIN_WATCHER (fork, fork) + void set () throw () { } + EV_END_WATCHER (fork, fork) + #endif + + #if EV_ASYNC_ENABLE + EV_BEGIN_WATCHER (async, async) + void send () throw () + { + ev_async_send (EV_A_ static_cast(this)); + } + + bool async_pending () throw () + { + return ev_async_pending (static_cast(this)); + } + EV_END_WATCHER (async, async) + #endif + + #undef EV_PX + #undef EV_PX_ + #undef EV_CONSTRUCT + #undef EV_BEGIN_WATCHER + #undef EV_END_WATCHER +} + +#endif + diff --git a/shadowsocksr-libev/src/libev/ev.3 b/shadowsocksr-libev/src/libev/ev.3 new file mode 100644 index 000000000..7cc2d5724 --- /dev/null +++ b/shadowsocksr-libev/src/libev/ev.3 @@ -0,0 +1,5643 @@ +.\" Automatically generated by Pod::Man 2.28 (Pod::Simple 3.30) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. 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Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +libev \- a high performance full\-featured event loop written in C +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +.Vb 1 +\& #include +.Ve +.SS "\s-1EXAMPLE PROGRAM\s0" +.IX Subsection "EXAMPLE PROGRAM" +.Vb 2 +\& // a single header file is required +\& #include +\& +\& #include // for puts +\& +\& // every watcher type has its own typedef\*(Aqd struct +\& // with the name ev_TYPE +\& ev_io stdin_watcher; +\& ev_timer timeout_watcher; +\& +\& // all watcher callbacks have a similar signature +\& // this callback is called when data is readable on stdin +\& static void +\& stdin_cb (EV_P_ ev_io *w, int revents) +\& { +\& puts ("stdin ready"); +\& // for one\-shot events, one must manually stop the watcher +\& // with its corresponding stop function. +\& ev_io_stop (EV_A_ w); +\& +\& // this causes all nested ev_run\*(Aqs to stop iterating +\& ev_break (EV_A_ EVBREAK_ALL); +\& } +\& +\& // another callback, this time for a time\-out +\& static void +\& timeout_cb (EV_P_ ev_timer *w, int revents) +\& { +\& puts ("timeout"); +\& // this causes the innermost ev_run to stop iterating +\& ev_break (EV_A_ EVBREAK_ONE); +\& } +\& +\& int +\& main (void) +\& { +\& // use the default event loop unless you have special needs +\& struct ev_loop *loop = EV_DEFAULT; +\& +\& // initialise an io watcher, then start it +\& // this one will watch for stdin to become readable +\& ev_io_init (&stdin_watcher, stdin_cb, /*STDIN_FILENO*/ 0, EV_READ); +\& ev_io_start (loop, &stdin_watcher); +\& +\& // initialise a timer watcher, then start it +\& // simple non\-repeating 5.5 second timeout +\& ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.); +\& ev_timer_start (loop, &timeout_watcher); +\& +\& // now wait for events to arrive +\& ev_run (loop, 0); +\& +\& // break was called, so exit +\& return 0; +\& } +.Ve +.SH "ABOUT THIS DOCUMENT" +.IX Header "ABOUT THIS DOCUMENT" +This document documents the libev software package. +.PP +The newest version of this document is also available as an html-formatted +web page you might find easier to navigate when reading it for the first +time: . +.PP +While this document tries to be as complete as possible in documenting +libev, its usage and the rationale behind its design, it is not a tutorial +on event-based programming, nor will it introduce event-based programming +with libev. +.PP +Familiarity with event based programming techniques in general is assumed +throughout this document. +.SH "WHAT TO READ WHEN IN A HURRY" +.IX Header "WHAT TO READ WHEN IN A HURRY" +This manual tries to be very detailed, but unfortunately, this also makes +it very long. If you just want to know the basics of libev, I suggest +reading \*(L"\s-1ANATOMY OF A WATCHER\*(R"\s0, then the \*(L"\s-1EXAMPLE PROGRAM\*(R"\s0 above and +look up the missing functions in \*(L"\s-1GLOBAL FUNCTIONS\*(R"\s0 and the \f(CW\*(C`ev_io\*(C'\fR and +\&\f(CW\*(C`ev_timer\*(C'\fR sections in \*(L"\s-1WATCHER TYPES\*(R"\s0. +.SH "ABOUT LIBEV" +.IX Header "ABOUT LIBEV" +Libev is an event loop: you register interest in certain events (such as a +file descriptor being readable or a timeout occurring), and it will manage +these event sources and provide your program with events. +.PP +To do this, it must take more or less complete control over your process +(or thread) by executing the \fIevent loop\fR handler, and will then +communicate events via a callback mechanism. +.PP +You register interest in certain events by registering so-called \fIevent +watchers\fR, which are relatively small C structures you initialise with the +details of the event, and then hand it over to libev by \fIstarting\fR the +watcher. +.SS "\s-1FEATURES\s0" +.IX Subsection "FEATURES" +Libev supports \f(CW\*(C`select\*(C'\fR, \f(CW\*(C`poll\*(C'\fR, the Linux-specific \f(CW\*(C`epoll\*(C'\fR, the +BSD-specific \f(CW\*(C`kqueue\*(C'\fR and the Solaris-specific event port mechanisms +for file descriptor events (\f(CW\*(C`ev_io\*(C'\fR), the Linux \f(CW\*(C`inotify\*(C'\fR interface +(for \f(CW\*(C`ev_stat\*(C'\fR), Linux eventfd/signalfd (for faster and cleaner +inter-thread wakeup (\f(CW\*(C`ev_async\*(C'\fR)/signal handling (\f(CW\*(C`ev_signal\*(C'\fR)) relative +timers (\f(CW\*(C`ev_timer\*(C'\fR), absolute timers with customised rescheduling +(\f(CW\*(C`ev_periodic\*(C'\fR), synchronous signals (\f(CW\*(C`ev_signal\*(C'\fR), process status +change events (\f(CW\*(C`ev_child\*(C'\fR), and event watchers dealing with the event +loop mechanism itself (\f(CW\*(C`ev_idle\*(C'\fR, \f(CW\*(C`ev_embed\*(C'\fR, \f(CW\*(C`ev_prepare\*(C'\fR and +\&\f(CW\*(C`ev_check\*(C'\fR watchers) as well as file watchers (\f(CW\*(C`ev_stat\*(C'\fR) and even +limited support for fork events (\f(CW\*(C`ev_fork\*(C'\fR). +.PP +It also is quite fast (see this +benchmark comparing it to libevent +for example). +.SS "\s-1CONVENTIONS\s0" +.IX Subsection "CONVENTIONS" +Libev is very configurable. In this manual the default (and most common) +configuration will be described, which supports multiple event loops. For +more info about various configuration options please have a look at +\&\fB\s-1EMBED\s0\fR section in this manual. If libev was configured without support +for multiple event loops, then all functions taking an initial argument of +name \f(CW\*(C`loop\*(C'\fR (which is always of type \f(CW\*(C`struct ev_loop *\*(C'\fR) will not have +this argument. +.SS "\s-1TIME REPRESENTATION\s0" +.IX Subsection "TIME REPRESENTATION" +Libev represents time as a single floating point number, representing +the (fractional) number of seconds since the (\s-1POSIX\s0) epoch (in practice +somewhere near the beginning of 1970, details are complicated, don't +ask). This type is called \f(CW\*(C`ev_tstamp\*(C'\fR, which is what you should use +too. It usually aliases to the \f(CW\*(C`double\*(C'\fR type in C. When you need to do +any calculations on it, you should treat it as some floating point value. +.PP +Unlike the name component \f(CW\*(C`stamp\*(C'\fR might indicate, it is also used for +time differences (e.g. delays) throughout libev. +.SH "ERROR HANDLING" +.IX Header "ERROR HANDLING" +Libev knows three classes of errors: operating system errors, usage errors +and internal errors (bugs). +.PP +When libev catches an operating system error it cannot handle (for example +a system call indicating a condition libev cannot fix), it calls the callback +set via \f(CW\*(C`ev_set_syserr_cb\*(C'\fR, which is supposed to fix the problem or +abort. The default is to print a diagnostic message and to call \f(CW\*(C`abort +()\*(C'\fR. +.PP +When libev detects a usage error such as a negative timer interval, then +it will print a diagnostic message and abort (via the \f(CW\*(C`assert\*(C'\fR mechanism, +so \f(CW\*(C`NDEBUG\*(C'\fR will disable this checking): these are programming errors in +the libev caller and need to be fixed there. +.PP +Libev also has a few internal error-checking \f(CW\*(C`assert\*(C'\fRions, and also has +extensive consistency checking code. These do not trigger under normal +circumstances, as they indicate either a bug in libev or worse. +.SH "GLOBAL FUNCTIONS" +.IX Header "GLOBAL FUNCTIONS" +These functions can be called anytime, even before initialising the +library in any way. +.IP "ev_tstamp ev_time ()" 4 +.IX Item "ev_tstamp ev_time ()" +Returns the current time as libev would use it. Please note that the +\&\f(CW\*(C`ev_now\*(C'\fR function is usually faster and also often returns the timestamp +you actually want to know. Also interesting is the combination of +\&\f(CW\*(C`ev_now_update\*(C'\fR and \f(CW\*(C`ev_now\*(C'\fR. +.IP "ev_sleep (ev_tstamp interval)" 4 +.IX Item "ev_sleep (ev_tstamp interval)" +Sleep for the given interval: The current thread will be blocked +until either it is interrupted or the given time interval has +passed (approximately \- it might return a bit earlier even if not +interrupted). Returns immediately if \f(CW\*(C`interval <= 0\*(C'\fR. +.Sp +Basically this is a sub-second-resolution \f(CW\*(C`sleep ()\*(C'\fR. +.Sp +The range of the \f(CW\*(C`interval\*(C'\fR is limited \- libev only guarantees to work +with sleep times of up to one day (\f(CW\*(C`interval <= 86400\*(C'\fR). +.IP "int ev_version_major ()" 4 +.IX Item "int ev_version_major ()" +.PD 0 +.IP "int ev_version_minor ()" 4 +.IX Item "int ev_version_minor ()" +.PD +You can find out the major and minor \s-1ABI\s0 version numbers of the library +you linked against by calling the functions \f(CW\*(C`ev_version_major\*(C'\fR and +\&\f(CW\*(C`ev_version_minor\*(C'\fR. If you want, you can compare against the global +symbols \f(CW\*(C`EV_VERSION_MAJOR\*(C'\fR and \f(CW\*(C`EV_VERSION_MINOR\*(C'\fR, which specify the +version of the library your program was compiled against. +.Sp +These version numbers refer to the \s-1ABI\s0 version of the library, not the +release version. +.Sp +Usually, it's a good idea to terminate if the major versions mismatch, +as this indicates an incompatible change. Minor versions are usually +compatible to older versions, so a larger minor version alone is usually +not a problem. +.Sp +Example: Make sure we haven't accidentally been linked against the wrong +version (note, however, that this will not detect other \s-1ABI\s0 mismatches, +such as \s-1LFS\s0 or reentrancy). +.Sp +.Vb 3 +\& assert (("libev version mismatch", +\& ev_version_major () == EV_VERSION_MAJOR +\& && ev_version_minor () >= EV_VERSION_MINOR)); +.Ve +.IP "unsigned int ev_supported_backends ()" 4 +.IX Item "unsigned int ev_supported_backends ()" +Return the set of all backends (i.e. their corresponding \f(CW\*(C`EV_BACKEND_*\*(C'\fR +value) compiled into this binary of libev (independent of their +availability on the system you are running on). See \f(CW\*(C`ev_default_loop\*(C'\fR for +a description of the set values. +.Sp +Example: make sure we have the epoll method, because yeah this is cool and +a must have and can we have a torrent of it please!!!11 +.Sp +.Vb 2 +\& assert (("sorry, no epoll, no sex", +\& ev_supported_backends () & EVBACKEND_EPOLL)); +.Ve +.IP "unsigned int ev_recommended_backends ()" 4 +.IX Item "unsigned int ev_recommended_backends ()" +Return the set of all backends compiled into this binary of libev and +also recommended for this platform, meaning it will work for most file +descriptor types. This set is often smaller than the one returned by +\&\f(CW\*(C`ev_supported_backends\*(C'\fR, as for example kqueue is broken on most BSDs +and will not be auto-detected unless you explicitly request it (assuming +you know what you are doing). This is the set of backends that libev will +probe for if you specify no backends explicitly. +.IP "unsigned int ev_embeddable_backends ()" 4 +.IX Item "unsigned int ev_embeddable_backends ()" +Returns the set of backends that are embeddable in other event loops. This +value is platform-specific but can include backends not available on the +current system. To find which embeddable backends might be supported on +the current system, you would need to look at \f(CW\*(C`ev_embeddable_backends () +& ev_supported_backends ()\*(C'\fR, likewise for recommended ones. +.Sp +See the description of \f(CW\*(C`ev_embed\*(C'\fR watchers for more info. +.IP "ev_set_allocator (void *(*cb)(void *ptr, long size) throw ())" 4 +.IX Item "ev_set_allocator (void *(*cb)(void *ptr, long size) throw ())" +Sets the allocation function to use (the prototype is similar \- the +semantics are identical to the \f(CW\*(C`realloc\*(C'\fR C89/SuS/POSIX function). It is +used to allocate and free memory (no surprises here). If it returns zero +when memory needs to be allocated (\f(CW\*(C`size != 0\*(C'\fR), the library might abort +or take some potentially destructive action. +.Sp +Since some systems (at least OpenBSD and Darwin) fail to implement +correct \f(CW\*(C`realloc\*(C'\fR semantics, libev will use a wrapper around the system +\&\f(CW\*(C`realloc\*(C'\fR and \f(CW\*(C`free\*(C'\fR functions by default. +.Sp +You could override this function in high-availability programs to, say, +free some memory if it cannot allocate memory, to use a special allocator, +or even to sleep a while and retry until some memory is available. +.Sp +Example: Replace the libev allocator with one that waits a bit and then +retries (example requires a standards-compliant \f(CW\*(C`realloc\*(C'\fR). +.Sp +.Vb 6 +\& static void * +\& persistent_realloc (void *ptr, size_t size) +\& { +\& for (;;) +\& { +\& void *newptr = realloc (ptr, size); +\& +\& if (newptr) +\& return newptr; +\& +\& sleep (60); +\& } +\& } +\& +\& ... +\& ev_set_allocator (persistent_realloc); +.Ve +.IP "ev_set_syserr_cb (void (*cb)(const char *msg) throw ())" 4 +.IX Item "ev_set_syserr_cb (void (*cb)(const char *msg) throw ())" +Set the callback function to call on a retryable system call error (such +as failed select, poll, epoll_wait). The message is a printable string +indicating the system call or subsystem causing the problem. If this +callback is set, then libev will expect it to remedy the situation, no +matter what, when it returns. That is, libev will generally retry the +requested operation, or, if the condition doesn't go away, do bad stuff +(such as abort). +.Sp +Example: This is basically the same thing that libev does internally, too. +.Sp +.Vb 6 +\& static void +\& fatal_error (const char *msg) +\& { +\& perror (msg); +\& abort (); +\& } +\& +\& ... +\& ev_set_syserr_cb (fatal_error); +.Ve +.IP "ev_feed_signal (int signum)" 4 +.IX Item "ev_feed_signal (int signum)" +This function can be used to \*(L"simulate\*(R" a signal receive. It is completely +safe to call this function at any time, from any context, including signal +handlers or random threads. +.Sp +Its main use is to customise signal handling in your process, especially +in the presence of threads. For example, you could block signals +by default in all threads (and specifying \f(CW\*(C`EVFLAG_NOSIGMASK\*(C'\fR when +creating any loops), and in one thread, use \f(CW\*(C`sigwait\*(C'\fR or any other +mechanism to wait for signals, then \*(L"deliver\*(R" them to libev by calling +\&\f(CW\*(C`ev_feed_signal\*(C'\fR. +.SH "FUNCTIONS CONTROLLING EVENT LOOPS" +.IX Header "FUNCTIONS CONTROLLING EVENT LOOPS" +An event loop is described by a \f(CW\*(C`struct ev_loop *\*(C'\fR (the \f(CW\*(C`struct\*(C'\fR is +\&\fInot\fR optional in this case unless libev 3 compatibility is disabled, as +libev 3 had an \f(CW\*(C`ev_loop\*(C'\fR function colliding with the struct name). +.PP +The library knows two types of such loops, the \fIdefault\fR loop, which +supports child process events, and dynamically created event loops which +do not. +.IP "struct ev_loop *ev_default_loop (unsigned int flags)" 4 +.IX Item "struct ev_loop *ev_default_loop (unsigned int flags)" +This returns the \*(L"default\*(R" event loop object, which is what you should +normally use when you just need \*(L"the event loop\*(R". Event loop objects and +the \f(CW\*(C`flags\*(C'\fR parameter are described in more detail in the entry for +\&\f(CW\*(C`ev_loop_new\*(C'\fR. +.Sp +If the default loop is already initialised then this function simply +returns it (and ignores the flags. If that is troubling you, check +\&\f(CW\*(C`ev_backend ()\*(C'\fR afterwards). Otherwise it will create it with the given +flags, which should almost always be \f(CW0\fR, unless the caller is also the +one calling \f(CW\*(C`ev_run\*(C'\fR or otherwise qualifies as \*(L"the main program\*(R". +.Sp +If you don't know what event loop to use, use the one returned from this +function (or via the \f(CW\*(C`EV_DEFAULT\*(C'\fR macro). +.Sp +Note that this function is \fInot\fR thread-safe, so if you want to use it +from multiple threads, you have to employ some kind of mutex (note also +that this case is unlikely, as loops cannot be shared easily between +threads anyway). +.Sp +The default loop is the only loop that can handle \f(CW\*(C`ev_child\*(C'\fR watchers, +and to do this, it always registers a handler for \f(CW\*(C`SIGCHLD\*(C'\fR. If this is +a problem for your application you can either create a dynamic loop with +\&\f(CW\*(C`ev_loop_new\*(C'\fR which doesn't do that, or you can simply overwrite the +\&\f(CW\*(C`SIGCHLD\*(C'\fR signal handler \fIafter\fR calling \f(CW\*(C`ev_default_init\*(C'\fR. +.Sp +Example: This is the most typical usage. +.Sp +.Vb 2 +\& if (!ev_default_loop (0)) +\& fatal ("could not initialise libev, bad $LIBEV_FLAGS in environment?"); +.Ve +.Sp +Example: Restrict libev to the select and poll backends, and do not allow +environment settings to be taken into account: +.Sp +.Vb 1 +\& ev_default_loop (EVBACKEND_POLL | EVBACKEND_SELECT | EVFLAG_NOENV); +.Ve +.IP "struct ev_loop *ev_loop_new (unsigned int flags)" 4 +.IX Item "struct ev_loop *ev_loop_new (unsigned int flags)" +This will create and initialise a new event loop object. If the loop +could not be initialised, returns false. +.Sp +This function is thread-safe, and one common way to use libev with +threads is indeed to create one loop per thread, and using the default +loop in the \*(L"main\*(R" or \*(L"initial\*(R" thread. +.Sp +The flags argument can be used to specify special behaviour or specific +backends to use, and is usually specified as \f(CW0\fR (or \f(CW\*(C`EVFLAG_AUTO\*(C'\fR). +.Sp +The following flags are supported: +.RS 4 +.ie n .IP """EVFLAG_AUTO""" 4 +.el .IP "\f(CWEVFLAG_AUTO\fR" 4 +.IX Item "EVFLAG_AUTO" +The default flags value. Use this if you have no clue (it's the right +thing, believe me). +.ie n .IP """EVFLAG_NOENV""" 4 +.el .IP "\f(CWEVFLAG_NOENV\fR" 4 +.IX Item "EVFLAG_NOENV" +If this flag bit is or'ed into the flag value (or the program runs setuid +or setgid) then libev will \fInot\fR look at the environment variable +\&\f(CW\*(C`LIBEV_FLAGS\*(C'\fR. Otherwise (the default), this environment variable will +override the flags completely if it is found in the environment. This is +useful to try out specific backends to test their performance, to work +around bugs, or to make libev threadsafe (accessing environment variables +cannot be done in a threadsafe way, but usually it works if no other +thread modifies them). +.ie n .IP """EVFLAG_FORKCHECK""" 4 +.el .IP "\f(CWEVFLAG_FORKCHECK\fR" 4 +.IX Item "EVFLAG_FORKCHECK" +Instead of calling \f(CW\*(C`ev_loop_fork\*(C'\fR manually after a fork, you can also +make libev check for a fork in each iteration by enabling this flag. +.Sp +This works by calling \f(CW\*(C`getpid ()\*(C'\fR on every iteration of the loop, +and thus this might slow down your event loop if you do a lot of loop +iterations and little real work, but is usually not noticeable (on my +GNU/Linux system for example, \f(CW\*(C`getpid\*(C'\fR is actually a simple 5\-insn sequence +without a system call and thus \fIvery\fR fast, but my GNU/Linux system also has +\&\f(CW\*(C`pthread_atfork\*(C'\fR which is even faster). +.Sp +The big advantage of this flag is that you can forget about fork (and +forget about forgetting to tell libev about forking, although you still +have to ignore \f(CW\*(C`SIGPIPE\*(C'\fR) when you use this flag. +.Sp +This flag setting cannot be overridden or specified in the \f(CW\*(C`LIBEV_FLAGS\*(C'\fR +environment variable. +.ie n .IP """EVFLAG_NOINOTIFY""" 4 +.el .IP "\f(CWEVFLAG_NOINOTIFY\fR" 4 +.IX Item "EVFLAG_NOINOTIFY" +When this flag is specified, then libev will not attempt to use the +\&\fIinotify\fR \s-1API\s0 for its \f(CW\*(C`ev_stat\*(C'\fR watchers. Apart from debugging and +testing, this flag can be useful to conserve inotify file descriptors, as +otherwise each loop using \f(CW\*(C`ev_stat\*(C'\fR watchers consumes one inotify handle. +.ie n .IP """EVFLAG_SIGNALFD""" 4 +.el .IP "\f(CWEVFLAG_SIGNALFD\fR" 4 +.IX Item "EVFLAG_SIGNALFD" +When this flag is specified, then libev will attempt to use the +\&\fIsignalfd\fR \s-1API\s0 for its \f(CW\*(C`ev_signal\*(C'\fR (and \f(CW\*(C`ev_child\*(C'\fR) watchers. This \s-1API\s0 +delivers signals synchronously, which makes it both faster and might make +it possible to get the queued signal data. It can also simplify signal +handling with threads, as long as you properly block signals in your +threads that are not interested in handling them. +.Sp +Signalfd will not be used by default as this changes your signal mask, and +there are a lot of shoddy libraries and programs (glib's threadpool for +example) that can't properly initialise their signal masks. +.ie n .IP """EVFLAG_NOSIGMASK""" 4 +.el .IP "\f(CWEVFLAG_NOSIGMASK\fR" 4 +.IX Item "EVFLAG_NOSIGMASK" +When this flag is specified, then libev will avoid to modify the signal +mask. Specifically, this means you have to make sure signals are unblocked +when you want to receive them. +.Sp +This behaviour is useful when you want to do your own signal handling, or +want to handle signals only in specific threads and want to avoid libev +unblocking the signals. +.Sp +It's also required by \s-1POSIX\s0 in a threaded program, as libev calls +\&\f(CW\*(C`sigprocmask\*(C'\fR, whose behaviour is officially unspecified. +.Sp +This flag's behaviour will become the default in future versions of libev. +.ie n .IP """EVBACKEND_SELECT"" (value 1, portable select backend)" 4 +.el .IP "\f(CWEVBACKEND_SELECT\fR (value 1, portable select backend)" 4 +.IX Item "EVBACKEND_SELECT (value 1, portable select backend)" +This is your standard \fIselect\fR\|(2) backend. Not \fIcompletely\fR standard, as +libev tries to roll its own fd_set with no limits on the number of fds, +but if that fails, expect a fairly low limit on the number of fds when +using this backend. It doesn't scale too well (O(highest_fd)), but its +usually the fastest backend for a low number of (low-numbered :) fds. +.Sp +To get good performance out of this backend you need a high amount of +parallelism (most of the file descriptors should be busy). If you are +writing a server, you should \f(CW\*(C`accept ()\*(C'\fR in a loop to accept as many +connections as possible during one iteration. You might also want to have +a look at \f(CW\*(C`ev_set_io_collect_interval ()\*(C'\fR to increase the amount of +readiness notifications you get per iteration. +.Sp +This backend maps \f(CW\*(C`EV_READ\*(C'\fR to the \f(CW\*(C`readfds\*(C'\fR set and \f(CW\*(C`EV_WRITE\*(C'\fR to the +\&\f(CW\*(C`writefds\*(C'\fR set (and to work around Microsoft Windows bugs, also onto the +\&\f(CW\*(C`exceptfds\*(C'\fR set on that platform). +.ie n .IP """EVBACKEND_POLL"" (value 2, poll backend, available everywhere except on windows)" 4 +.el .IP "\f(CWEVBACKEND_POLL\fR (value 2, poll backend, available everywhere except on windows)" 4 +.IX Item "EVBACKEND_POLL (value 2, poll backend, available everywhere except on windows)" +And this is your standard \fIpoll\fR\|(2) backend. It's more complicated +than select, but handles sparse fds better and has no artificial +limit on the number of fds you can use (except it will slow down +considerably with a lot of inactive fds). It scales similarly to select, +i.e. O(total_fds). See the entry for \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR, above, for +performance tips. +.Sp +This backend maps \f(CW\*(C`EV_READ\*(C'\fR to \f(CW\*(C`POLLIN | POLLERR | POLLHUP\*(C'\fR, and +\&\f(CW\*(C`EV_WRITE\*(C'\fR to \f(CW\*(C`POLLOUT | POLLERR | POLLHUP\*(C'\fR. +.ie n .IP """EVBACKEND_EPOLL"" (value 4, Linux)" 4 +.el .IP "\f(CWEVBACKEND_EPOLL\fR (value 4, Linux)" 4 +.IX Item "EVBACKEND_EPOLL (value 4, Linux)" +Use the linux-specific \fIepoll\fR\|(7) interface (for both pre\- and post\-2.6.9 +kernels). +.Sp +For few fds, this backend is a bit little slower than poll and select, but +it scales phenomenally better. While poll and select usually scale like +O(total_fds) where total_fds is the total number of fds (or the highest +fd), epoll scales either O(1) or O(active_fds). +.Sp +The epoll mechanism deserves honorable mention as the most misdesigned +of the more advanced event mechanisms: mere annoyances include silently +dropping file descriptors, requiring a system call per change per file +descriptor (and unnecessary guessing of parameters), problems with dup, +returning before the timeout value, resulting in additional iterations +(and only giving 5ms accuracy while select on the same platform gives +0.1ms) and so on. The biggest issue is fork races, however \- if a program +forks then \fIboth\fR parent and child process have to recreate the epoll +set, which can take considerable time (one syscall per file descriptor) +and is of course hard to detect. +.Sp +Epoll is also notoriously buggy \- embedding epoll fds \fIshould\fR work, +but of course \fIdoesn't\fR, and epoll just loves to report events for +totally \fIdifferent\fR file descriptors (even already closed ones, so +one cannot even remove them from the set) than registered in the set +(especially on \s-1SMP\s0 systems). Libev tries to counter these spurious +notifications by employing an additional generation counter and comparing +that against the events to filter out spurious ones, recreating the set +when required. Epoll also erroneously rounds down timeouts, but gives you +no way to know when and by how much, so sometimes you have to busy-wait +because epoll returns immediately despite a nonzero timeout. And last +not least, it also refuses to work with some file descriptors which work +perfectly fine with \f(CW\*(C`select\*(C'\fR (files, many character devices...). +.Sp +Epoll is truly the train wreck among event poll mechanisms, a frankenpoll, +cobbled together in a hurry, no thought to design or interaction with +others. Oh, the pain, will it ever stop... +.Sp +While stopping, setting and starting an I/O watcher in the same iteration +will result in some caching, there is still a system call per such +incident (because the same \fIfile descriptor\fR could point to a different +\&\fIfile description\fR now), so its best to avoid that. Also, \f(CW\*(C`dup ()\*(C'\fR'ed +file descriptors might not work very well if you register events for both +file descriptors. +.Sp +Best performance from this backend is achieved by not unregistering all +watchers for a file descriptor until it has been closed, if possible, +i.e. keep at least one watcher active per fd at all times. Stopping and +starting a watcher (without re-setting it) also usually doesn't cause +extra overhead. A fork can both result in spurious notifications as well +as in libev having to destroy and recreate the epoll object, which can +take considerable time and thus should be avoided. +.Sp +All this means that, in practice, \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR can be as fast or +faster than epoll for maybe up to a hundred file descriptors, depending on +the usage. So sad. +.Sp +While nominally embeddable in other event loops, this feature is broken in +all kernel versions tested so far. +.Sp +This backend maps \f(CW\*(C`EV_READ\*(C'\fR and \f(CW\*(C`EV_WRITE\*(C'\fR in the same way as +\&\f(CW\*(C`EVBACKEND_POLL\*(C'\fR. +.ie n .IP """EVBACKEND_KQUEUE"" (value 8, most \s-1BSD\s0 clones)" 4 +.el .IP "\f(CWEVBACKEND_KQUEUE\fR (value 8, most \s-1BSD\s0 clones)" 4 +.IX Item "EVBACKEND_KQUEUE (value 8, most BSD clones)" +Kqueue deserves special mention, as at the time of this writing, it +was broken on all BSDs except NetBSD (usually it doesn't work reliably +with anything but sockets and pipes, except on Darwin, where of course +it's completely useless). Unlike epoll, however, whose brokenness +is by design, these kqueue bugs can (and eventually will) be fixed +without \s-1API\s0 changes to existing programs. For this reason it's not being +\&\*(L"auto-detected\*(R" unless you explicitly specify it in the flags (i.e. using +\&\f(CW\*(C`EVBACKEND_KQUEUE\*(C'\fR) or libev was compiled on a known-to-be-good (\-enough) +system like NetBSD. +.Sp +You still can embed kqueue into a normal poll or select backend and use it +only for sockets (after having made sure that sockets work with kqueue on +the target platform). See \f(CW\*(C`ev_embed\*(C'\fR watchers for more info. +.Sp +It scales in the same way as the epoll backend, but the interface to the +kernel is more efficient (which says nothing about its actual speed, of +course). While stopping, setting and starting an I/O watcher does never +cause an extra system call as with \f(CW\*(C`EVBACKEND_EPOLL\*(C'\fR, it still adds up to +two event changes per incident. Support for \f(CW\*(C`fork ()\*(C'\fR is very bad (you +might have to leak fd's on fork, but it's more sane than epoll) and it +drops fds silently in similarly hard-to-detect cases. +.Sp +This backend usually performs well under most conditions. +.Sp +While nominally embeddable in other event loops, this doesn't work +everywhere, so you might need to test for this. And since it is broken +almost everywhere, you should only use it when you have a lot of sockets +(for which it usually works), by embedding it into another event loop +(e.g. \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR (but \f(CW\*(C`poll\*(C'\fR is of course +also broken on \s-1OS X\s0)) and, did I mention it, using it only for sockets. +.Sp +This backend maps \f(CW\*(C`EV_READ\*(C'\fR into an \f(CW\*(C`EVFILT_READ\*(C'\fR kevent with +\&\f(CW\*(C`NOTE_EOF\*(C'\fR, and \f(CW\*(C`EV_WRITE\*(C'\fR into an \f(CW\*(C`EVFILT_WRITE\*(C'\fR kevent with +\&\f(CW\*(C`NOTE_EOF\*(C'\fR. +.ie n .IP """EVBACKEND_DEVPOLL"" (value 16, Solaris 8)" 4 +.el .IP "\f(CWEVBACKEND_DEVPOLL\fR (value 16, Solaris 8)" 4 +.IX Item "EVBACKEND_DEVPOLL (value 16, Solaris 8)" +This is not implemented yet (and might never be, unless you send me an +implementation). According to reports, \f(CW\*(C`/dev/poll\*(C'\fR only supports sockets +and is not embeddable, which would limit the usefulness of this backend +immensely. +.ie n .IP """EVBACKEND_PORT"" (value 32, Solaris 10)" 4 +.el .IP "\f(CWEVBACKEND_PORT\fR (value 32, Solaris 10)" 4 +.IX Item "EVBACKEND_PORT (value 32, Solaris 10)" +This uses the Solaris 10 event port mechanism. As with everything on Solaris, +it's really slow, but it still scales very well (O(active_fds)). +.Sp +While this backend scales well, it requires one system call per active +file descriptor per loop iteration. For small and medium numbers of file +descriptors a \*(L"slow\*(R" \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR backend +might perform better. +.Sp +On the positive side, this backend actually performed fully to +specification in all tests and is fully embeddable, which is a rare feat +among the OS-specific backends (I vastly prefer correctness over speed +hacks). +.Sp +On the negative side, the interface is \fIbizarre\fR \- so bizarre that +even sun itself gets it wrong in their code examples: The event polling +function sometimes returns events to the caller even though an error +occurred, but with no indication whether it has done so or not (yes, it's +even documented that way) \- deadly for edge-triggered interfaces where you +absolutely have to know whether an event occurred or not because you have +to re-arm the watcher. +.Sp +Fortunately libev seems to be able to work around these idiocies. +.Sp +This backend maps \f(CW\*(C`EV_READ\*(C'\fR and \f(CW\*(C`EV_WRITE\*(C'\fR in the same way as +\&\f(CW\*(C`EVBACKEND_POLL\*(C'\fR. +.ie n .IP """EVBACKEND_ALL""" 4 +.el .IP "\f(CWEVBACKEND_ALL\fR" 4 +.IX Item "EVBACKEND_ALL" +Try all backends (even potentially broken ones that wouldn't be tried +with \f(CW\*(C`EVFLAG_AUTO\*(C'\fR). Since this is a mask, you can do stuff such as +\&\f(CW\*(C`EVBACKEND_ALL & ~EVBACKEND_KQUEUE\*(C'\fR. +.Sp +It is definitely not recommended to use this flag, use whatever +\&\f(CW\*(C`ev_recommended_backends ()\*(C'\fR returns, or simply do not specify a backend +at all. +.ie n .IP """EVBACKEND_MASK""" 4 +.el .IP "\f(CWEVBACKEND_MASK\fR" 4 +.IX Item "EVBACKEND_MASK" +Not a backend at all, but a mask to select all backend bits from a +\&\f(CW\*(C`flags\*(C'\fR value, in case you want to mask out any backends from a flags +value (e.g. when modifying the \f(CW\*(C`LIBEV_FLAGS\*(C'\fR environment variable). +.RE +.RS 4 +.Sp +If one or more of the backend flags are or'ed into the flags value, +then only these backends will be tried (in the reverse order as listed +here). If none are specified, all backends in \f(CW\*(C`ev_recommended_backends +()\*(C'\fR will be tried. +.Sp +Example: Try to create a event loop that uses epoll and nothing else. +.Sp +.Vb 3 +\& struct ev_loop *epoller = ev_loop_new (EVBACKEND_EPOLL | EVFLAG_NOENV); +\& if (!epoller) +\& fatal ("no epoll found here, maybe it hides under your chair"); +.Ve +.Sp +Example: Use whatever libev has to offer, but make sure that kqueue is +used if available. +.Sp +.Vb 1 +\& struct ev_loop *loop = ev_loop_new (ev_recommended_backends () | EVBACKEND_KQUEUE); +.Ve +.RE +.IP "ev_loop_destroy (loop)" 4 +.IX Item "ev_loop_destroy (loop)" +Destroys an event loop object (frees all memory and kernel state +etc.). None of the active event watchers will be stopped in the normal +sense, so e.g. \f(CW\*(C`ev_is_active\*(C'\fR might still return true. It is your +responsibility to either stop all watchers cleanly yourself \fIbefore\fR +calling this function, or cope with the fact afterwards (which is usually +the easiest thing, you can just ignore the watchers and/or \f(CW\*(C`free ()\*(C'\fR them +for example). +.Sp +Note that certain global state, such as signal state (and installed signal +handlers), will not be freed by this function, and related watchers (such +as signal and child watchers) would need to be stopped manually. +.Sp +This function is normally used on loop objects allocated by +\&\f(CW\*(C`ev_loop_new\*(C'\fR, but it can also be used on the default loop returned by +\&\f(CW\*(C`ev_default_loop\*(C'\fR, in which case it is not thread-safe. +.Sp +Note that it is not advisable to call this function on the default loop +except in the rare occasion where you really need to free its resources. +If you need dynamically allocated loops it is better to use \f(CW\*(C`ev_loop_new\*(C'\fR +and \f(CW\*(C`ev_loop_destroy\*(C'\fR. +.IP "ev_loop_fork (loop)" 4 +.IX Item "ev_loop_fork (loop)" +This function sets a flag that causes subsequent \f(CW\*(C`ev_run\*(C'\fR iterations +to reinitialise the kernel state for backends that have one. Despite +the name, you can call it anytime you are allowed to start or stop +watchers (except inside an \f(CW\*(C`ev_prepare\*(C'\fR callback), but it makes most +sense after forking, in the child process. You \fImust\fR call it (or use +\&\f(CW\*(C`EVFLAG_FORKCHECK\*(C'\fR) in the child before resuming or calling \f(CW\*(C`ev_run\*(C'\fR. +.Sp +In addition, if you want to reuse a loop (via this function or +\&\f(CW\*(C`EVFLAG_FORKCHECK\*(C'\fR), you \fIalso\fR have to ignore \f(CW\*(C`SIGPIPE\*(C'\fR. +.Sp +Again, you \fIhave\fR to call it on \fIany\fR loop that you want to re-use after +a fork, \fIeven if you do not plan to use the loop in the parent\fR. This is +because some kernel interfaces *cough* \fIkqueue\fR *cough* do funny things +during fork. +.Sp +On the other hand, you only need to call this function in the child +process if and only if you want to use the event loop in the child. If +you just fork+exec or create a new loop in the child, you don't have to +call it at all (in fact, \f(CW\*(C`epoll\*(C'\fR is so badly broken that it makes a +difference, but libev will usually detect this case on its own and do a +costly reset of the backend). +.Sp +The function itself is quite fast and it's usually not a problem to call +it just in case after a fork. +.Sp +Example: Automate calling \f(CW\*(C`ev_loop_fork\*(C'\fR on the default loop when +using pthreads. +.Sp +.Vb 5 +\& static void +\& post_fork_child (void) +\& { +\& ev_loop_fork (EV_DEFAULT); +\& } +\& +\& ... +\& pthread_atfork (0, 0, post_fork_child); +.Ve +.IP "int ev_is_default_loop (loop)" 4 +.IX Item "int ev_is_default_loop (loop)" +Returns true when the given loop is, in fact, the default loop, and false +otherwise. +.IP "unsigned int ev_iteration (loop)" 4 +.IX Item "unsigned int ev_iteration (loop)" +Returns the current iteration count for the event loop, which is identical +to the number of times libev did poll for new events. It starts at \f(CW0\fR +and happily wraps around with enough iterations. +.Sp +This value can sometimes be useful as a generation counter of sorts (it +\&\*(L"ticks\*(R" the number of loop iterations), as it roughly corresponds with +\&\f(CW\*(C`ev_prepare\*(C'\fR and \f(CW\*(C`ev_check\*(C'\fR calls \- and is incremented between the +prepare and check phases. +.IP "unsigned int ev_depth (loop)" 4 +.IX Item "unsigned int ev_depth (loop)" +Returns the number of times \f(CW\*(C`ev_run\*(C'\fR was entered minus the number of +times \f(CW\*(C`ev_run\*(C'\fR was exited normally, in other words, the recursion depth. +.Sp +Outside \f(CW\*(C`ev_run\*(C'\fR, this number is zero. In a callback, this number is +\&\f(CW1\fR, unless \f(CW\*(C`ev_run\*(C'\fR was invoked recursively (or from another thread), +in which case it is higher. +.Sp +Leaving \f(CW\*(C`ev_run\*(C'\fR abnormally (setjmp/longjmp, cancelling the thread, +throwing an exception etc.), doesn't count as \*(L"exit\*(R" \- consider this +as a hint to avoid such ungentleman-like behaviour unless it's really +convenient, in which case it is fully supported. +.IP "unsigned int ev_backend (loop)" 4 +.IX Item "unsigned int ev_backend (loop)" +Returns one of the \f(CW\*(C`EVBACKEND_*\*(C'\fR flags indicating the event backend in +use. +.IP "ev_tstamp ev_now (loop)" 4 +.IX Item "ev_tstamp ev_now (loop)" +Returns the current \*(L"event loop time\*(R", which is the time the event loop +received events and started processing them. This timestamp does not +change as long as callbacks are being processed, and this is also the base +time used for relative timers. You can treat it as the timestamp of the +event occurring (or more correctly, libev finding out about it). +.IP "ev_now_update (loop)" 4 +.IX Item "ev_now_update (loop)" +Establishes the current time by querying the kernel, updating the time +returned by \f(CW\*(C`ev_now ()\*(C'\fR in the progress. This is a costly operation and +is usually done automatically within \f(CW\*(C`ev_run ()\*(C'\fR. +.Sp +This function is rarely useful, but when some event callback runs for a +very long time without entering the event loop, updating libev's idea of +the current time is a good idea. +.Sp +See also \*(L"The special problem of time updates\*(R" in the \f(CW\*(C`ev_timer\*(C'\fR section. +.IP "ev_suspend (loop)" 4 +.IX Item "ev_suspend (loop)" +.PD 0 +.IP "ev_resume (loop)" 4 +.IX Item "ev_resume (loop)" +.PD +These two functions suspend and resume an event loop, for use when the +loop is not used for a while and timeouts should not be processed. +.Sp +A typical use case would be an interactive program such as a game: When +the user presses \f(CW\*(C`^Z\*(C'\fR to suspend the game and resumes it an hour later it +would be best to handle timeouts as if no time had actually passed while +the program was suspended. This can be achieved by calling \f(CW\*(C`ev_suspend\*(C'\fR +in your \f(CW\*(C`SIGTSTP\*(C'\fR handler, sending yourself a \f(CW\*(C`SIGSTOP\*(C'\fR and calling +\&\f(CW\*(C`ev_resume\*(C'\fR directly afterwards to resume timer processing. +.Sp +Effectively, all \f(CW\*(C`ev_timer\*(C'\fR watchers will be delayed by the time spend +between \f(CW\*(C`ev_suspend\*(C'\fR and \f(CW\*(C`ev_resume\*(C'\fR, and all \f(CW\*(C`ev_periodic\*(C'\fR watchers +will be rescheduled (that is, they will lose any events that would have +occurred while suspended). +.Sp +After calling \f(CW\*(C`ev_suspend\*(C'\fR you \fBmust not\fR call \fIany\fR function on the +given loop other than \f(CW\*(C`ev_resume\*(C'\fR, and you \fBmust not\fR call \f(CW\*(C`ev_resume\*(C'\fR +without a previous call to \f(CW\*(C`ev_suspend\*(C'\fR. +.Sp +Calling \f(CW\*(C`ev_suspend\*(C'\fR/\f(CW\*(C`ev_resume\*(C'\fR has the side effect of updating the +event loop time (see \f(CW\*(C`ev_now_update\*(C'\fR). +.IP "bool ev_run (loop, int flags)" 4 +.IX Item "bool ev_run (loop, int flags)" +Finally, this is it, the event handler. This function usually is called +after you have initialised all your watchers and you want to start +handling events. It will ask the operating system for any new events, call +the watcher callbacks, and then repeat the whole process indefinitely: This +is why event loops are called \fIloops\fR. +.Sp +If the flags argument is specified as \f(CW0\fR, it will keep handling events +until either no event watchers are active anymore or \f(CW\*(C`ev_break\*(C'\fR was +called. +.Sp +The return value is false if there are no more active watchers (which +usually means \*(L"all jobs done\*(R" or \*(L"deadlock\*(R"), and true in all other cases +(which usually means " you should call \f(CW\*(C`ev_run\*(C'\fR again"). +.Sp +Please note that an explicit \f(CW\*(C`ev_break\*(C'\fR is usually better than +relying on all watchers to be stopped when deciding when a program has +finished (especially in interactive programs), but having a program +that automatically loops as long as it has to and no longer by virtue +of relying on its watchers stopping correctly, that is truly a thing of +beauty. +.Sp +This function is \fImostly\fR exception-safe \- you can break out of a +\&\f(CW\*(C`ev_run\*(C'\fR call by calling \f(CW\*(C`longjmp\*(C'\fR in a callback, throwing a \*(C+ +exception and so on. This does not decrement the \f(CW\*(C`ev_depth\*(C'\fR value, nor +will it clear any outstanding \f(CW\*(C`EVBREAK_ONE\*(C'\fR breaks. +.Sp +A flags value of \f(CW\*(C`EVRUN_NOWAIT\*(C'\fR will look for new events, will handle +those events and any already outstanding ones, but will not wait and +block your process in case there are no events and will return after one +iteration of the loop. This is sometimes useful to poll and handle new +events while doing lengthy calculations, to keep the program responsive. +.Sp +A flags value of \f(CW\*(C`EVRUN_ONCE\*(C'\fR will look for new events (waiting if +necessary) and will handle those and any already outstanding ones. It +will block your process until at least one new event arrives (which could +be an event internal to libev itself, so there is no guarantee that a +user-registered callback will be called), and will return after one +iteration of the loop. +.Sp +This is useful if you are waiting for some external event in conjunction +with something not expressible using other libev watchers (i.e. "roll your +own \f(CW\*(C`ev_run\*(C'\fR"). However, a pair of \f(CW\*(C`ev_prepare\*(C'\fR/\f(CW\*(C`ev_check\*(C'\fR watchers is +usually a better approach for this kind of thing. +.Sp +Here are the gory details of what \f(CW\*(C`ev_run\*(C'\fR does (this is for your +understanding, not a guarantee that things will work exactly like this in +future versions): +.Sp +.Vb 10 +\& \- Increment loop depth. +\& \- Reset the ev_break status. +\& \- Before the first iteration, call any pending watchers. +\& LOOP: +\& \- If EVFLAG_FORKCHECK was used, check for a fork. +\& \- If a fork was detected (by any means), queue and call all fork watchers. +\& \- Queue and call all prepare watchers. +\& \- If ev_break was called, goto FINISH. +\& \- If we have been forked, detach and recreate the kernel state +\& as to not disturb the other process. +\& \- Update the kernel state with all outstanding changes. +\& \- Update the "event loop time" (ev_now ()). +\& \- Calculate for how long to sleep or block, if at all +\& (active idle watchers, EVRUN_NOWAIT or not having +\& any active watchers at all will result in not sleeping). +\& \- Sleep if the I/O and timer collect interval say so. +\& \- Increment loop iteration counter. +\& \- Block the process, waiting for any events. +\& \- Queue all outstanding I/O (fd) events. +\& \- Update the "event loop time" (ev_now ()), and do time jump adjustments. +\& \- Queue all expired timers. +\& \- Queue all expired periodics. +\& \- Queue all idle watchers with priority higher than that of pending events. +\& \- Queue all check watchers. +\& \- Call all queued watchers in reverse order (i.e. check watchers first). +\& Signals and child watchers are implemented as I/O watchers, and will +\& be handled here by queueing them when their watcher gets executed. +\& \- If ev_break has been called, or EVRUN_ONCE or EVRUN_NOWAIT +\& were used, or there are no active watchers, goto FINISH, otherwise +\& continue with step LOOP. +\& FINISH: +\& \- Reset the ev_break status iff it was EVBREAK_ONE. +\& \- Decrement the loop depth. +\& \- Return. +.Ve +.Sp +Example: Queue some jobs and then loop until no events are outstanding +anymore. +.Sp +.Vb 4 +\& ... queue jobs here, make sure they register event watchers as long +\& ... as they still have work to do (even an idle watcher will do..) +\& ev_run (my_loop, 0); +\& ... jobs done or somebody called break. yeah! +.Ve +.IP "ev_break (loop, how)" 4 +.IX Item "ev_break (loop, how)" +Can be used to make a call to \f(CW\*(C`ev_run\*(C'\fR return early (but only after it +has processed all outstanding events). The \f(CW\*(C`how\*(C'\fR argument must be either +\&\f(CW\*(C`EVBREAK_ONE\*(C'\fR, which will make the innermost \f(CW\*(C`ev_run\*(C'\fR call return, or +\&\f(CW\*(C`EVBREAK_ALL\*(C'\fR, which will make all nested \f(CW\*(C`ev_run\*(C'\fR calls return. +.Sp +This \*(L"break state\*(R" will be cleared on the next call to \f(CW\*(C`ev_run\*(C'\fR. +.Sp +It is safe to call \f(CW\*(C`ev_break\*(C'\fR from outside any \f(CW\*(C`ev_run\*(C'\fR calls, too, in +which case it will have no effect. +.IP "ev_ref (loop)" 4 +.IX Item "ev_ref (loop)" +.PD 0 +.IP "ev_unref (loop)" 4 +.IX Item "ev_unref (loop)" +.PD +Ref/unref can be used to add or remove a reference count on the event +loop: Every watcher keeps one reference, and as long as the reference +count is nonzero, \f(CW\*(C`ev_run\*(C'\fR will not return on its own. +.Sp +This is useful when you have a watcher that you never intend to +unregister, but that nevertheless should not keep \f(CW\*(C`ev_run\*(C'\fR from +returning. In such a case, call \f(CW\*(C`ev_unref\*(C'\fR after starting, and \f(CW\*(C`ev_ref\*(C'\fR +before stopping it. +.Sp +As an example, libev itself uses this for its internal signal pipe: It +is not visible to the libev user and should not keep \f(CW\*(C`ev_run\*(C'\fR from +exiting if no event watchers registered by it are active. It is also an +excellent way to do this for generic recurring timers or from within +third-party libraries. Just remember to \fIunref after start\fR and \fIref +before stop\fR (but only if the watcher wasn't active before, or was active +before, respectively. Note also that libev might stop watchers itself +(e.g. non-repeating timers) in which case you have to \f(CW\*(C`ev_ref\*(C'\fR +in the callback). +.Sp +Example: Create a signal watcher, but keep it from keeping \f(CW\*(C`ev_run\*(C'\fR +running when nothing else is active. +.Sp +.Vb 4 +\& ev_signal exitsig; +\& ev_signal_init (&exitsig, sig_cb, SIGINT); +\& ev_signal_start (loop, &exitsig); +\& ev_unref (loop); +.Ve +.Sp +Example: For some weird reason, unregister the above signal handler again. +.Sp +.Vb 2 +\& ev_ref (loop); +\& ev_signal_stop (loop, &exitsig); +.Ve +.IP "ev_set_io_collect_interval (loop, ev_tstamp interval)" 4 +.IX Item "ev_set_io_collect_interval (loop, ev_tstamp interval)" +.PD 0 +.IP "ev_set_timeout_collect_interval (loop, ev_tstamp interval)" 4 +.IX Item "ev_set_timeout_collect_interval (loop, ev_tstamp interval)" +.PD +These advanced functions influence the time that libev will spend waiting +for events. Both time intervals are by default \f(CW0\fR, meaning that libev +will try to invoke timer/periodic callbacks and I/O callbacks with minimum +latency. +.Sp +Setting these to a higher value (the \f(CW\*(C`interval\*(C'\fR \fImust\fR be >= \f(CW0\fR) +allows libev to delay invocation of I/O and timer/periodic callbacks +to increase efficiency of loop iterations (or to increase power-saving +opportunities). +.Sp +The idea is that sometimes your program runs just fast enough to handle +one (or very few) event(s) per loop iteration. While this makes the +program responsive, it also wastes a lot of \s-1CPU\s0 time to poll for new +events, especially with backends like \f(CW\*(C`select ()\*(C'\fR which have a high +overhead for the actual polling but can deliver many events at once. +.Sp +By setting a higher \fIio collect interval\fR you allow libev to spend more +time collecting I/O events, so you can handle more events per iteration, +at the cost of increasing latency. Timeouts (both \f(CW\*(C`ev_periodic\*(C'\fR and +\&\f(CW\*(C`ev_timer\*(C'\fR) will not be affected. Setting this to a non-null value will +introduce an additional \f(CW\*(C`ev_sleep ()\*(C'\fR call into most loop iterations. The +sleep time ensures that libev will not poll for I/O events more often then +once per this interval, on average (as long as the host time resolution is +good enough). +.Sp +Likewise, by setting a higher \fItimeout collect interval\fR you allow libev +to spend more time collecting timeouts, at the expense of increased +latency/jitter/inexactness (the watcher callback will be called +later). \f(CW\*(C`ev_io\*(C'\fR watchers will not be affected. Setting this to a non-null +value will not introduce any overhead in libev. +.Sp +Many (busy) programs can usually benefit by setting the I/O collect +interval to a value near \f(CW0.1\fR or so, which is often enough for +interactive servers (of course not for games), likewise for timeouts. It +usually doesn't make much sense to set it to a lower value than \f(CW0.01\fR, +as this approaches the timing granularity of most systems. Note that if +you do transactions with the outside world and you can't increase the +parallelity, then this setting will limit your transaction rate (if you +need to poll once per transaction and the I/O collect interval is 0.01, +then you can't do more than 100 transactions per second). +.Sp +Setting the \fItimeout collect interval\fR can improve the opportunity for +saving power, as the program will \*(L"bundle\*(R" timer callback invocations that +are \*(L"near\*(R" in time together, by delaying some, thus reducing the number of +times the process sleeps and wakes up again. Another useful technique to +reduce iterations/wake\-ups is to use \f(CW\*(C`ev_periodic\*(C'\fR watchers and make sure +they fire on, say, one-second boundaries only. +.Sp +Example: we only need 0.1s timeout granularity, and we wish not to poll +more often than 100 times per second: +.Sp +.Vb 2 +\& ev_set_timeout_collect_interval (EV_DEFAULT_UC_ 0.1); +\& ev_set_io_collect_interval (EV_DEFAULT_UC_ 0.01); +.Ve +.IP "ev_invoke_pending (loop)" 4 +.IX Item "ev_invoke_pending (loop)" +This call will simply invoke all pending watchers while resetting their +pending state. Normally, \f(CW\*(C`ev_run\*(C'\fR does this automatically when required, +but when overriding the invoke callback this call comes handy. This +function can be invoked from a watcher \- this can be useful for example +when you want to do some lengthy calculation and want to pass further +event handling to another thread (you still have to make sure only one +thread executes within \f(CW\*(C`ev_invoke_pending\*(C'\fR or \f(CW\*(C`ev_run\*(C'\fR of course). +.IP "int ev_pending_count (loop)" 4 +.IX Item "int ev_pending_count (loop)" +Returns the number of pending watchers \- zero indicates that no watchers +are pending. +.IP "ev_set_invoke_pending_cb (loop, void (*invoke_pending_cb)(\s-1EV_P\s0))" 4 +.IX Item "ev_set_invoke_pending_cb (loop, void (*invoke_pending_cb)(EV_P))" +This overrides the invoke pending functionality of the loop: Instead of +invoking all pending watchers when there are any, \f(CW\*(C`ev_run\*(C'\fR will call +this callback instead. This is useful, for example, when you want to +invoke the actual watchers inside another context (another thread etc.). +.Sp +If you want to reset the callback, use \f(CW\*(C`ev_invoke_pending\*(C'\fR as new +callback. +.IP "ev_set_loop_release_cb (loop, void (*release)(\s-1EV_P\s0) throw (), void (*acquire)(\s-1EV_P\s0) throw ())" 4 +.IX Item "ev_set_loop_release_cb (loop, void (*release)(EV_P) throw (), void (*acquire)(EV_P) throw ())" +Sometimes you want to share the same loop between multiple threads. This +can be done relatively simply by putting mutex_lock/unlock calls around +each call to a libev function. +.Sp +However, \f(CW\*(C`ev_run\*(C'\fR can run an indefinite time, so it is not feasible +to wait for it to return. One way around this is to wake up the event +loop via \f(CW\*(C`ev_break\*(C'\fR and \f(CW\*(C`ev_async_send\*(C'\fR, another way is to set these +\&\fIrelease\fR and \fIacquire\fR callbacks on the loop. +.Sp +When set, then \f(CW\*(C`release\*(C'\fR will be called just before the thread is +suspended waiting for new events, and \f(CW\*(C`acquire\*(C'\fR is called just +afterwards. +.Sp +Ideally, \f(CW\*(C`release\*(C'\fR will just call your mutex_unlock function, and +\&\f(CW\*(C`acquire\*(C'\fR will just call the mutex_lock function again. +.Sp +While event loop modifications are allowed between invocations of +\&\f(CW\*(C`release\*(C'\fR and \f(CW\*(C`acquire\*(C'\fR (that's their only purpose after all), no +modifications done will affect the event loop, i.e. adding watchers will +have no effect on the set of file descriptors being watched, or the time +waited. Use an \f(CW\*(C`ev_async\*(C'\fR watcher to wake up \f(CW\*(C`ev_run\*(C'\fR when you want it +to take note of any changes you made. +.Sp +In theory, threads executing \f(CW\*(C`ev_run\*(C'\fR will be async-cancel safe between +invocations of \f(CW\*(C`release\*(C'\fR and \f(CW\*(C`acquire\*(C'\fR. +.Sp +See also the locking example in the \f(CW\*(C`THREADS\*(C'\fR section later in this +document. +.IP "ev_set_userdata (loop, void *data)" 4 +.IX Item "ev_set_userdata (loop, void *data)" +.PD 0 +.IP "void *ev_userdata (loop)" 4 +.IX Item "void *ev_userdata (loop)" +.PD +Set and retrieve a single \f(CW\*(C`void *\*(C'\fR associated with a loop. When +\&\f(CW\*(C`ev_set_userdata\*(C'\fR has never been called, then \f(CW\*(C`ev_userdata\*(C'\fR returns +\&\f(CW0\fR. +.Sp +These two functions can be used to associate arbitrary data with a loop, +and are intended solely for the \f(CW\*(C`invoke_pending_cb\*(C'\fR, \f(CW\*(C`release\*(C'\fR and +\&\f(CW\*(C`acquire\*(C'\fR callbacks described above, but of course can be (ab\-)used for +any other purpose as well. +.IP "ev_verify (loop)" 4 +.IX Item "ev_verify (loop)" +This function only does something when \f(CW\*(C`EV_VERIFY\*(C'\fR support has been +compiled in, which is the default for non-minimal builds. It tries to go +through all internal structures and checks them for validity. If anything +is found to be inconsistent, it will print an error message to standard +error and call \f(CW\*(C`abort ()\*(C'\fR. +.Sp +This can be used to catch bugs inside libev itself: under normal +circumstances, this function will never abort as of course libev keeps its +data structures consistent. +.SH "ANATOMY OF A WATCHER" +.IX Header "ANATOMY OF A WATCHER" +In the following description, uppercase \f(CW\*(C`TYPE\*(C'\fR in names stands for the +watcher type, e.g. \f(CW\*(C`ev_TYPE_start\*(C'\fR can mean \f(CW\*(C`ev_timer_start\*(C'\fR for timer +watchers and \f(CW\*(C`ev_io_start\*(C'\fR for I/O watchers. +.PP +A watcher is an opaque structure that you allocate and register to record +your interest in some event. To make a concrete example, imagine you want +to wait for \s-1STDIN\s0 to become readable, you would create an \f(CW\*(C`ev_io\*(C'\fR watcher +for that: +.PP +.Vb 5 +\& static void my_cb (struct ev_loop *loop, ev_io *w, int revents) +\& { +\& ev_io_stop (w); +\& ev_break (loop, EVBREAK_ALL); +\& } +\& +\& struct ev_loop *loop = ev_default_loop (0); +\& +\& ev_io stdin_watcher; +\& +\& ev_init (&stdin_watcher, my_cb); +\& ev_io_set (&stdin_watcher, STDIN_FILENO, EV_READ); +\& ev_io_start (loop, &stdin_watcher); +\& +\& ev_run (loop, 0); +.Ve +.PP +As you can see, you are responsible for allocating the memory for your +watcher structures (and it is \fIusually\fR a bad idea to do this on the +stack). +.PP +Each watcher has an associated watcher structure (called \f(CW\*(C`struct ev_TYPE\*(C'\fR +or simply \f(CW\*(C`ev_TYPE\*(C'\fR, as typedefs are provided for all watcher structs). +.PP +Each watcher structure must be initialised by a call to \f(CW\*(C`ev_init (watcher +*, callback)\*(C'\fR, which expects a callback to be provided. This callback is +invoked each time the event occurs (or, in the case of I/O watchers, each +time the event loop detects that the file descriptor given is readable +and/or writable). +.PP +Each watcher type further has its own \f(CW\*(C`ev_TYPE_set (watcher *, ...)\*(C'\fR +macro to configure it, with arguments specific to the watcher type. There +is also a macro to combine initialisation and setting in one call: \f(CW\*(C`ev_TYPE_init (watcher *, callback, ...)\*(C'\fR. +.PP +To make the watcher actually watch out for events, you have to start it +with a watcher-specific start function (\f(CW\*(C`ev_TYPE_start (loop, watcher +*)\*(C'\fR), and you can stop watching for events at any time by calling the +corresponding stop function (\f(CW\*(C`ev_TYPE_stop (loop, watcher *)\*(C'\fR. +.PP +As long as your watcher is active (has been started but not stopped) you +must not touch the values stored in it. Most specifically you must never +reinitialise it or call its \f(CW\*(C`ev_TYPE_set\*(C'\fR macro. +.PP +Each and every callback receives the event loop pointer as first, the +registered watcher structure as second, and a bitset of received events as +third argument. +.PP +The received events usually include a single bit per event type received +(you can receive multiple events at the same time). The possible bit masks +are: +.ie n .IP """EV_READ""" 4 +.el .IP "\f(CWEV_READ\fR" 4 +.IX Item "EV_READ" +.PD 0 +.ie n .IP """EV_WRITE""" 4 +.el .IP "\f(CWEV_WRITE\fR" 4 +.IX Item "EV_WRITE" +.PD +The file descriptor in the \f(CW\*(C`ev_io\*(C'\fR watcher has become readable and/or +writable. +.ie n .IP """EV_TIMER""" 4 +.el .IP "\f(CWEV_TIMER\fR" 4 +.IX Item "EV_TIMER" +The \f(CW\*(C`ev_timer\*(C'\fR watcher has timed out. +.ie n .IP """EV_PERIODIC""" 4 +.el .IP "\f(CWEV_PERIODIC\fR" 4 +.IX Item "EV_PERIODIC" +The \f(CW\*(C`ev_periodic\*(C'\fR watcher has timed out. +.ie n .IP """EV_SIGNAL""" 4 +.el .IP "\f(CWEV_SIGNAL\fR" 4 +.IX Item "EV_SIGNAL" +The signal specified in the \f(CW\*(C`ev_signal\*(C'\fR watcher has been received by a thread. +.ie n .IP """EV_CHILD""" 4 +.el .IP "\f(CWEV_CHILD\fR" 4 +.IX Item "EV_CHILD" +The pid specified in the \f(CW\*(C`ev_child\*(C'\fR watcher has received a status change. +.ie n .IP """EV_STAT""" 4 +.el .IP "\f(CWEV_STAT\fR" 4 +.IX Item "EV_STAT" +The path specified in the \f(CW\*(C`ev_stat\*(C'\fR watcher changed its attributes somehow. +.ie n .IP """EV_IDLE""" 4 +.el .IP "\f(CWEV_IDLE\fR" 4 +.IX Item "EV_IDLE" +The \f(CW\*(C`ev_idle\*(C'\fR watcher has determined that you have nothing better to do. +.ie n .IP """EV_PREPARE""" 4 +.el .IP "\f(CWEV_PREPARE\fR" 4 +.IX Item "EV_PREPARE" +.PD 0 +.ie n .IP """EV_CHECK""" 4 +.el .IP "\f(CWEV_CHECK\fR" 4 +.IX Item "EV_CHECK" +.PD +All \f(CW\*(C`ev_prepare\*(C'\fR watchers are invoked just \fIbefore\fR \f(CW\*(C`ev_run\*(C'\fR starts to +gather new events, and all \f(CW\*(C`ev_check\*(C'\fR watchers are queued (not invoked) +just after \f(CW\*(C`ev_run\*(C'\fR has gathered them, but before it queues any callbacks +for any received events. That means \f(CW\*(C`ev_prepare\*(C'\fR watchers are the last +watchers invoked before the event loop sleeps or polls for new events, and +\&\f(CW\*(C`ev_check\*(C'\fR watchers will be invoked before any other watchers of the same +or lower priority within an event loop iteration. +.Sp +Callbacks of both watcher types can start and stop as many watchers as +they want, and all of them will be taken into account (for example, a +\&\f(CW\*(C`ev_prepare\*(C'\fR watcher might start an idle watcher to keep \f(CW\*(C`ev_run\*(C'\fR from +blocking). +.ie n .IP """EV_EMBED""" 4 +.el .IP "\f(CWEV_EMBED\fR" 4 +.IX Item "EV_EMBED" +The embedded event loop specified in the \f(CW\*(C`ev_embed\*(C'\fR watcher needs attention. +.ie n .IP """EV_FORK""" 4 +.el .IP "\f(CWEV_FORK\fR" 4 +.IX Item "EV_FORK" +The event loop has been resumed in the child process after fork (see +\&\f(CW\*(C`ev_fork\*(C'\fR). +.ie n .IP """EV_CLEANUP""" 4 +.el .IP "\f(CWEV_CLEANUP\fR" 4 +.IX Item "EV_CLEANUP" +The event loop is about to be destroyed (see \f(CW\*(C`ev_cleanup\*(C'\fR). +.ie n .IP """EV_ASYNC""" 4 +.el .IP "\f(CWEV_ASYNC\fR" 4 +.IX Item "EV_ASYNC" +The given async watcher has been asynchronously notified (see \f(CW\*(C`ev_async\*(C'\fR). +.ie n .IP """EV_CUSTOM""" 4 +.el .IP "\f(CWEV_CUSTOM\fR" 4 +.IX Item "EV_CUSTOM" +Not ever sent (or otherwise used) by libev itself, but can be freely used +by libev users to signal watchers (e.g. via \f(CW\*(C`ev_feed_event\*(C'\fR). +.ie n .IP """EV_ERROR""" 4 +.el .IP "\f(CWEV_ERROR\fR" 4 +.IX Item "EV_ERROR" +An unspecified error has occurred, the watcher has been stopped. This might +happen because the watcher could not be properly started because libev +ran out of memory, a file descriptor was found to be closed or any other +problem. Libev considers these application bugs. +.Sp +You best act on it by reporting the problem and somehow coping with the +watcher being stopped. Note that well-written programs should not receive +an error ever, so when your watcher receives it, this usually indicates a +bug in your program. +.Sp +Libev will usually signal a few \*(L"dummy\*(R" events together with an error, for +example it might indicate that a fd is readable or writable, and if your +callbacks is well-written it can just attempt the operation and cope with +the error from \fIread()\fR or \fIwrite()\fR. This will not work in multi-threaded +programs, though, as the fd could already be closed and reused for another +thing, so beware. +.SS "\s-1GENERIC WATCHER FUNCTIONS\s0" +.IX Subsection "GENERIC WATCHER FUNCTIONS" +.ie n .IP """ev_init"" (ev_TYPE *watcher, callback)" 4 +.el .IP "\f(CWev_init\fR (ev_TYPE *watcher, callback)" 4 +.IX Item "ev_init (ev_TYPE *watcher, callback)" +This macro initialises the generic portion of a watcher. The contents +of the watcher object can be arbitrary (so \f(CW\*(C`malloc\*(C'\fR will do). Only +the generic parts of the watcher are initialised, you \fIneed\fR to call +the type-specific \f(CW\*(C`ev_TYPE_set\*(C'\fR macro afterwards to initialise the +type-specific parts. For each type there is also a \f(CW\*(C`ev_TYPE_init\*(C'\fR macro +which rolls both calls into one. +.Sp +You can reinitialise a watcher at any time as long as it has been stopped +(or never started) and there are no pending events outstanding. +.Sp +The callback is always of type \f(CW\*(C`void (*)(struct ev_loop *loop, ev_TYPE *watcher, +int revents)\*(C'\fR. +.Sp +Example: Initialise an \f(CW\*(C`ev_io\*(C'\fR watcher in two steps. +.Sp +.Vb 3 +\& ev_io w; +\& ev_init (&w, my_cb); +\& ev_io_set (&w, STDIN_FILENO, EV_READ); +.Ve +.ie n .IP """ev_TYPE_set"" (ev_TYPE *watcher, [args])" 4 +.el .IP "\f(CWev_TYPE_set\fR (ev_TYPE *watcher, [args])" 4 +.IX Item "ev_TYPE_set (ev_TYPE *watcher, [args])" +This macro initialises the type-specific parts of a watcher. You need to +call \f(CW\*(C`ev_init\*(C'\fR at least once before you call this macro, but you can +call \f(CW\*(C`ev_TYPE_set\*(C'\fR any number of times. You must not, however, call this +macro on a watcher that is active (it can be pending, however, which is a +difference to the \f(CW\*(C`ev_init\*(C'\fR macro). +.Sp +Although some watcher types do not have type-specific arguments +(e.g. \f(CW\*(C`ev_prepare\*(C'\fR) you still need to call its \f(CW\*(C`set\*(C'\fR macro. +.Sp +See \f(CW\*(C`ev_init\*(C'\fR, above, for an example. +.ie n .IP """ev_TYPE_init"" (ev_TYPE *watcher, callback, [args])" 4 +.el .IP "\f(CWev_TYPE_init\fR (ev_TYPE *watcher, callback, [args])" 4 +.IX Item "ev_TYPE_init (ev_TYPE *watcher, callback, [args])" +This convenience macro rolls both \f(CW\*(C`ev_init\*(C'\fR and \f(CW\*(C`ev_TYPE_set\*(C'\fR macro +calls into a single call. This is the most convenient method to initialise +a watcher. The same limitations apply, of course. +.Sp +Example: Initialise and set an \f(CW\*(C`ev_io\*(C'\fR watcher in one step. +.Sp +.Vb 1 +\& ev_io_init (&w, my_cb, STDIN_FILENO, EV_READ); +.Ve +.ie n .IP """ev_TYPE_start"" (loop, ev_TYPE *watcher)" 4 +.el .IP "\f(CWev_TYPE_start\fR (loop, ev_TYPE *watcher)" 4 +.IX Item "ev_TYPE_start (loop, ev_TYPE *watcher)" +Starts (activates) the given watcher. Only active watchers will receive +events. If the watcher is already active nothing will happen. +.Sp +Example: Start the \f(CW\*(C`ev_io\*(C'\fR watcher that is being abused as example in this +whole section. +.Sp +.Vb 1 +\& ev_io_start (EV_DEFAULT_UC, &w); +.Ve +.ie n .IP """ev_TYPE_stop"" (loop, ev_TYPE *watcher)" 4 +.el .IP "\f(CWev_TYPE_stop\fR (loop, ev_TYPE *watcher)" 4 +.IX Item "ev_TYPE_stop (loop, ev_TYPE *watcher)" +Stops the given watcher if active, and clears the pending status (whether +the watcher was active or not). +.Sp +It is possible that stopped watchers are pending \- for example, +non-repeating timers are being stopped when they become pending \- but +calling \f(CW\*(C`ev_TYPE_stop\*(C'\fR ensures that the watcher is neither active nor +pending. If you want to free or reuse the memory used by the watcher it is +therefore a good idea to always call its \f(CW\*(C`ev_TYPE_stop\*(C'\fR function. +.IP "bool ev_is_active (ev_TYPE *watcher)" 4 +.IX Item "bool ev_is_active (ev_TYPE *watcher)" +Returns a true value iff the watcher is active (i.e. it has been started +and not yet been stopped). As long as a watcher is active you must not modify +it. +.IP "bool ev_is_pending (ev_TYPE *watcher)" 4 +.IX Item "bool ev_is_pending (ev_TYPE *watcher)" +Returns a true value iff the watcher is pending, (i.e. it has outstanding +events but its callback has not yet been invoked). As long as a watcher +is pending (but not active) you must not call an init function on it (but +\&\f(CW\*(C`ev_TYPE_set\*(C'\fR is safe), you must not change its priority, and you must +make sure the watcher is available to libev (e.g. you cannot \f(CW\*(C`free ()\*(C'\fR +it). +.IP "callback ev_cb (ev_TYPE *watcher)" 4 +.IX Item "callback ev_cb (ev_TYPE *watcher)" +Returns the callback currently set on the watcher. +.IP "ev_set_cb (ev_TYPE *watcher, callback)" 4 +.IX Item "ev_set_cb (ev_TYPE *watcher, callback)" +Change the callback. You can change the callback at virtually any time +(modulo threads). +.IP "ev_set_priority (ev_TYPE *watcher, int priority)" 4 +.IX Item "ev_set_priority (ev_TYPE *watcher, int priority)" +.PD 0 +.IP "int ev_priority (ev_TYPE *watcher)" 4 +.IX Item "int ev_priority (ev_TYPE *watcher)" +.PD +Set and query the priority of the watcher. The priority is a small +integer between \f(CW\*(C`EV_MAXPRI\*(C'\fR (default: \f(CW2\fR) and \f(CW\*(C`EV_MINPRI\*(C'\fR +(default: \f(CW\*(C`\-2\*(C'\fR). Pending watchers with higher priority will be invoked +before watchers with lower priority, but priority will not keep watchers +from being executed (except for \f(CW\*(C`ev_idle\*(C'\fR watchers). +.Sp +If you need to suppress invocation when higher priority events are pending +you need to look at \f(CW\*(C`ev_idle\*(C'\fR watchers, which provide this functionality. +.Sp +You \fImust not\fR change the priority of a watcher as long as it is active or +pending. +.Sp +Setting a priority outside the range of \f(CW\*(C`EV_MINPRI\*(C'\fR to \f(CW\*(C`EV_MAXPRI\*(C'\fR is +fine, as long as you do not mind that the priority value you query might +or might not have been clamped to the valid range. +.Sp +The default priority used by watchers when no priority has been set is +always \f(CW0\fR, which is supposed to not be too high and not be too low :). +.Sp +See \*(L"\s-1WATCHER PRIORITY MODELS\*(R"\s0, below, for a more thorough treatment of +priorities. +.IP "ev_invoke (loop, ev_TYPE *watcher, int revents)" 4 +.IX Item "ev_invoke (loop, ev_TYPE *watcher, int revents)" +Invoke the \f(CW\*(C`watcher\*(C'\fR with the given \f(CW\*(C`loop\*(C'\fR and \f(CW\*(C`revents\*(C'\fR. Neither +\&\f(CW\*(C`loop\*(C'\fR nor \f(CW\*(C`revents\*(C'\fR need to be valid as long as the watcher callback +can deal with that fact, as both are simply passed through to the +callback. +.IP "int ev_clear_pending (loop, ev_TYPE *watcher)" 4 +.IX Item "int ev_clear_pending (loop, ev_TYPE *watcher)" +If the watcher is pending, this function clears its pending status and +returns its \f(CW\*(C`revents\*(C'\fR bitset (as if its callback was invoked). If the +watcher isn't pending it does nothing and returns \f(CW0\fR. +.Sp +Sometimes it can be useful to \*(L"poll\*(R" a watcher instead of waiting for its +callback to be invoked, which can be accomplished with this function. +.IP "ev_feed_event (loop, ev_TYPE *watcher, int revents)" 4 +.IX Item "ev_feed_event (loop, ev_TYPE *watcher, int revents)" +Feeds the given event set into the event loop, as if the specified event +had happened for the specified watcher (which must be a pointer to an +initialised but not necessarily started event watcher). Obviously you must +not free the watcher as long as it has pending events. +.Sp +Stopping the watcher, letting libev invoke it, or calling +\&\f(CW\*(C`ev_clear_pending\*(C'\fR will clear the pending event, even if the watcher was +not started in the first place. +.Sp +See also \f(CW\*(C`ev_feed_fd_event\*(C'\fR and \f(CW\*(C`ev_feed_signal_event\*(C'\fR for related +functions that do not need a watcher. +.PP +See also the \*(L"\s-1ASSOCIATING CUSTOM DATA WITH A WATCHER\*(R"\s0 and \*(L"\s-1BUILDING YOUR +OWN COMPOSITE WATCHERS\*(R"\s0 idioms. +.SS "\s-1WATCHER STATES\s0" +.IX Subsection "WATCHER STATES" +There are various watcher states mentioned throughout this manual \- +active, pending and so on. In this section these states and the rules to +transition between them will be described in more detail \- and while these +rules might look complicated, they usually do \*(L"the right thing\*(R". +.IP "initialised" 4 +.IX Item "initialised" +Before a watcher can be registered with the event loop it has to be +initialised. This can be done with a call to \f(CW\*(C`ev_TYPE_init\*(C'\fR, or calls to +\&\f(CW\*(C`ev_init\*(C'\fR followed by the watcher-specific \f(CW\*(C`ev_TYPE_set\*(C'\fR function. +.Sp +In this state it is simply some block of memory that is suitable for +use in an event loop. It can be moved around, freed, reused etc. at +will \- as long as you either keep the memory contents intact, or call +\&\f(CW\*(C`ev_TYPE_init\*(C'\fR again. +.IP "started/running/active" 4 +.IX Item "started/running/active" +Once a watcher has been started with a call to \f(CW\*(C`ev_TYPE_start\*(C'\fR it becomes +property of the event loop, and is actively waiting for events. While in +this state it cannot be accessed (except in a few documented ways), moved, +freed or anything else \- the only legal thing is to keep a pointer to it, +and call libev functions on it that are documented to work on active watchers. +.IP "pending" 4 +.IX Item "pending" +If a watcher is active and libev determines that an event it is interested +in has occurred (such as a timer expiring), it will become pending. It will +stay in this pending state until either it is stopped or its callback is +about to be invoked, so it is not normally pending inside the watcher +callback. +.Sp +The watcher might or might not be active while it is pending (for example, +an expired non-repeating timer can be pending but no longer active). If it +is stopped, it can be freely accessed (e.g. by calling \f(CW\*(C`ev_TYPE_set\*(C'\fR), +but it is still property of the event loop at this time, so cannot be +moved, freed or reused. And if it is active the rules described in the +previous item still apply. +.Sp +It is also possible to feed an event on a watcher that is not active (e.g. +via \f(CW\*(C`ev_feed_event\*(C'\fR), in which case it becomes pending without being +active. +.IP "stopped" 4 +.IX Item "stopped" +A watcher can be stopped implicitly by libev (in which case it might still +be pending), or explicitly by calling its \f(CW\*(C`ev_TYPE_stop\*(C'\fR function. The +latter will clear any pending state the watcher might be in, regardless +of whether it was active or not, so stopping a watcher explicitly before +freeing it is often a good idea. +.Sp +While stopped (and not pending) the watcher is essentially in the +initialised state, that is, it can be reused, moved, modified in any way +you wish (but when you trash the memory block, you need to \f(CW\*(C`ev_TYPE_init\*(C'\fR +it again). +.SS "\s-1WATCHER PRIORITY MODELS\s0" +.IX Subsection "WATCHER PRIORITY MODELS" +Many event loops support \fIwatcher priorities\fR, which are usually small +integers that influence the ordering of event callback invocation +between watchers in some way, all else being equal. +.PP +In libev, Watcher priorities can be set using \f(CW\*(C`ev_set_priority\*(C'\fR. See its +description for the more technical details such as the actual priority +range. +.PP +There are two common ways how these these priorities are being interpreted +by event loops: +.PP +In the more common lock-out model, higher priorities \*(L"lock out\*(R" invocation +of lower priority watchers, which means as long as higher priority +watchers receive events, lower priority watchers are not being invoked. +.PP +The less common only-for-ordering model uses priorities solely to order +callback invocation within a single event loop iteration: Higher priority +watchers are invoked before lower priority ones, but they all get invoked +before polling for new events. +.PP +Libev uses the second (only-for-ordering) model for all its watchers +except for idle watchers (which use the lock-out model). +.PP +The rationale behind this is that implementing the lock-out model for +watchers is not well supported by most kernel interfaces, and most event +libraries will just poll for the same events again and again as long as +their callbacks have not been executed, which is very inefficient in the +common case of one high-priority watcher locking out a mass of lower +priority ones. +.PP +Static (ordering) priorities are most useful when you have two or more +watchers handling the same resource: a typical usage example is having an +\&\f(CW\*(C`ev_io\*(C'\fR watcher to receive data, and an associated \f(CW\*(C`ev_timer\*(C'\fR to handle +timeouts. Under load, data might be received while the program handles +other jobs, but since timers normally get invoked first, the timeout +handler will be executed before checking for data. In that case, giving +the timer a lower priority than the I/O watcher ensures that I/O will be +handled first even under adverse conditions (which is usually, but not +always, what you want). +.PP +Since idle watchers use the \*(L"lock-out\*(R" model, meaning that idle watchers +will only be executed when no same or higher priority watchers have +received events, they can be used to implement the \*(L"lock-out\*(R" model when +required. +.PP +For example, to emulate how many other event libraries handle priorities, +you can associate an \f(CW\*(C`ev_idle\*(C'\fR watcher to each such watcher, and in +the normal watcher callback, you just start the idle watcher. The real +processing is done in the idle watcher callback. This causes libev to +continuously poll and process kernel event data for the watcher, but when +the lock-out case is known to be rare (which in turn is rare :), this is +workable. +.PP +Usually, however, the lock-out model implemented that way will perform +miserably under the type of load it was designed to handle. In that case, +it might be preferable to stop the real watcher before starting the +idle watcher, so the kernel will not have to process the event in case +the actual processing will be delayed for considerable time. +.PP +Here is an example of an I/O watcher that should run at a strictly lower +priority than the default, and which should only process data when no +other events are pending: +.PP +.Vb 2 +\& ev_idle idle; // actual processing watcher +\& ev_io io; // actual event watcher +\& +\& static void +\& io_cb (EV_P_ ev_io *w, int revents) +\& { +\& // stop the I/O watcher, we received the event, but +\& // are not yet ready to handle it. +\& ev_io_stop (EV_A_ w); +\& +\& // start the idle watcher to handle the actual event. +\& // it will not be executed as long as other watchers +\& // with the default priority are receiving events. +\& ev_idle_start (EV_A_ &idle); +\& } +\& +\& static void +\& idle_cb (EV_P_ ev_idle *w, int revents) +\& { +\& // actual processing +\& read (STDIN_FILENO, ...); +\& +\& // have to start the I/O watcher again, as +\& // we have handled the event +\& ev_io_start (EV_P_ &io); +\& } +\& +\& // initialisation +\& ev_idle_init (&idle, idle_cb); +\& ev_io_init (&io, io_cb, STDIN_FILENO, EV_READ); +\& ev_io_start (EV_DEFAULT_ &io); +.Ve +.PP +In the \*(L"real\*(R" world, it might also be beneficial to start a timer, so that +low-priority connections can not be locked out forever under load. This +enables your program to keep a lower latency for important connections +during short periods of high load, while not completely locking out less +important ones. +.SH "WATCHER TYPES" +.IX Header "WATCHER TYPES" +This section describes each watcher in detail, but will not repeat +information given in the last section. Any initialisation/set macros, +functions and members specific to the watcher type are explained. +.PP +Members are additionally marked with either \fI[read\-only]\fR, meaning that, +while the watcher is active, you can look at the member and expect some +sensible content, but you must not modify it (you can modify it while the +watcher is stopped to your hearts content), or \fI[read\-write]\fR, which +means you can expect it to have some sensible content while the watcher +is active, but you can also modify it. Modifying it may not do something +sensible or take immediate effect (or do anything at all), but libev will +not crash or malfunction in any way. +.ie n .SS """ev_io"" \- is this file descriptor readable or writable?" +.el .SS "\f(CWev_io\fP \- is this file descriptor readable or writable?" +.IX Subsection "ev_io - is this file descriptor readable or writable?" +I/O watchers check whether a file descriptor is readable or writable +in each iteration of the event loop, or, more precisely, when reading +would not block the process and writing would at least be able to write +some data. This behaviour is called level-triggering because you keep +receiving events as long as the condition persists. Remember you can stop +the watcher if you don't want to act on the event and neither want to +receive future events. +.PP +In general you can register as many read and/or write event watchers per +fd as you want (as long as you don't confuse yourself). Setting all file +descriptors to non-blocking mode is also usually a good idea (but not +required if you know what you are doing). +.PP +Another thing you have to watch out for is that it is quite easy to +receive \*(L"spurious\*(R" readiness notifications, that is, your callback might +be called with \f(CW\*(C`EV_READ\*(C'\fR but a subsequent \f(CW\*(C`read\*(C'\fR(2) will actually block +because there is no data. It is very easy to get into this situation even +with a relatively standard program structure. Thus it is best to always +use non-blocking I/O: An extra \f(CW\*(C`read\*(C'\fR(2) returning \f(CW\*(C`EAGAIN\*(C'\fR is far +preferable to a program hanging until some data arrives. +.PP +If you cannot run the fd in non-blocking mode (for example you should +not play around with an Xlib connection), then you have to separately +re-test whether a file descriptor is really ready with a known-to-be good +interface such as poll (fortunately in the case of Xlib, it already does +this on its own, so its quite safe to use). Some people additionally +use \f(CW\*(C`SIGALRM\*(C'\fR and an interval timer, just to be sure you won't block +indefinitely. +.PP +But really, best use non-blocking mode. +.PP +\fIThe special problem of disappearing file descriptors\fR +.IX Subsection "The special problem of disappearing file descriptors" +.PP +Some backends (e.g. kqueue, epoll) need to be told about closing a file +descriptor (either due to calling \f(CW\*(C`close\*(C'\fR explicitly or any other means, +such as \f(CW\*(C`dup2\*(C'\fR). The reason is that you register interest in some file +descriptor, but when it goes away, the operating system will silently drop +this interest. If another file descriptor with the same number then is +registered with libev, there is no efficient way to see that this is, in +fact, a different file descriptor. +.PP +To avoid having to explicitly tell libev about such cases, libev follows +the following policy: Each time \f(CW\*(C`ev_io_set\*(C'\fR is being called, libev +will assume that this is potentially a new file descriptor, otherwise +it is assumed that the file descriptor stays the same. That means that +you \fIhave\fR to call \f(CW\*(C`ev_io_set\*(C'\fR (or \f(CW\*(C`ev_io_init\*(C'\fR) when you change the +descriptor even if the file descriptor number itself did not change. +.PP +This is how one would do it normally anyway, the important point is that +the libev application should not optimise around libev but should leave +optimisations to libev. +.PP +\fIThe special problem of dup'ed file descriptors\fR +.IX Subsection "The special problem of dup'ed file descriptors" +.PP +Some backends (e.g. epoll), cannot register events for file descriptors, +but only events for the underlying file descriptions. That means when you +have \f(CW\*(C`dup ()\*(C'\fR'ed file descriptors or weirder constellations, and register +events for them, only one file descriptor might actually receive events. +.PP +There is no workaround possible except not registering events +for potentially \f(CW\*(C`dup ()\*(C'\fR'ed file descriptors, or to resort to +\&\f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR. +.PP +\fIThe special problem of files\fR +.IX Subsection "The special problem of files" +.PP +Many people try to use \f(CW\*(C`select\*(C'\fR (or libev) on file descriptors +representing files, and expect it to become ready when their program +doesn't block on disk accesses (which can take a long time on their own). +.PP +However, this cannot ever work in the \*(L"expected\*(R" way \- you get a readiness +notification as soon as the kernel knows whether and how much data is +there, and in the case of open files, that's always the case, so you +always get a readiness notification instantly, and your read (or possibly +write) will still block on the disk I/O. +.PP +Another way to view it is that in the case of sockets, pipes, character +devices and so on, there is another party (the sender) that delivers data +on its own, but in the case of files, there is no such thing: the disk +will not send data on its own, simply because it doesn't know what you +wish to read \- you would first have to request some data. +.PP +Since files are typically not-so-well supported by advanced notification +mechanism, libev tries hard to emulate \s-1POSIX\s0 behaviour with respect +to files, even though you should not use it. The reason for this is +convenience: sometimes you want to watch \s-1STDIN\s0 or \s-1STDOUT,\s0 which is +usually a tty, often a pipe, but also sometimes files or special devices +(for example, \f(CW\*(C`epoll\*(C'\fR on Linux works with \fI/dev/random\fR but not with +\&\fI/dev/urandom\fR), and even though the file might better be served with +asynchronous I/O instead of with non-blocking I/O, it is still useful when +it \*(L"just works\*(R" instead of freezing. +.PP +So avoid file descriptors pointing to files when you know it (e.g. use +libeio), but use them when it is convenient, e.g. for \s-1STDIN/STDOUT,\s0 or +when you rarely read from a file instead of from a socket, and want to +reuse the same code path. +.PP +\fIThe special problem of fork\fR +.IX Subsection "The special problem of fork" +.PP +Some backends (epoll, kqueue) do not support \f(CW\*(C`fork ()\*(C'\fR at all or exhibit +useless behaviour. Libev fully supports fork, but needs to be told about +it in the child if you want to continue to use it in the child. +.PP +To support fork in your child processes, you have to call \f(CW\*(C`ev_loop_fork +()\*(C'\fR after a fork in the child, enable \f(CW\*(C`EVFLAG_FORKCHECK\*(C'\fR, or resort to +\&\f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR. +.PP +\fIThe special problem of \s-1SIGPIPE\s0\fR +.IX Subsection "The special problem of SIGPIPE" +.PP +While not really specific to libev, it is easy to forget about \f(CW\*(C`SIGPIPE\*(C'\fR: +when writing to a pipe whose other end has been closed, your program gets +sent a \s-1SIGPIPE,\s0 which, by default, aborts your program. For most programs +this is sensible behaviour, for daemons, this is usually undesirable. +.PP +So when you encounter spurious, unexplained daemon exits, make sure you +ignore \s-1SIGPIPE \s0(and maybe make sure you log the exit status of your daemon +somewhere, as that would have given you a big clue). +.PP +\fIThe special problem of \fIaccept()\fIing when you can't\fR +.IX Subsection "The special problem of accept()ing when you can't" +.PP +Many implementations of the \s-1POSIX \s0\f(CW\*(C`accept\*(C'\fR function (for example, +found in post\-2004 Linux) have the peculiar behaviour of not removing a +connection from the pending queue in all error cases. +.PP +For example, larger servers often run out of file descriptors (because +of resource limits), causing \f(CW\*(C`accept\*(C'\fR to fail with \f(CW\*(C`ENFILE\*(C'\fR but not +rejecting the connection, leading to libev signalling readiness on +the next iteration again (the connection still exists after all), and +typically causing the program to loop at 100% \s-1CPU\s0 usage. +.PP +Unfortunately, the set of errors that cause this issue differs between +operating systems, there is usually little the app can do to remedy the +situation, and no known thread-safe method of removing the connection to +cope with overload is known (to me). +.PP +One of the easiest ways to handle this situation is to just ignore it +\&\- when the program encounters an overload, it will just loop until the +situation is over. While this is a form of busy waiting, no \s-1OS\s0 offers an +event-based way to handle this situation, so it's the best one can do. +.PP +A better way to handle the situation is to log any errors other than +\&\f(CW\*(C`EAGAIN\*(C'\fR and \f(CW\*(C`EWOULDBLOCK\*(C'\fR, making sure not to flood the log with such +messages, and continue as usual, which at least gives the user an idea of +what could be wrong (\*(L"raise the ulimit!\*(R"). For extra points one could stop +the \f(CW\*(C`ev_io\*(C'\fR watcher on the listening fd \*(L"for a while\*(R", which reduces \s-1CPU\s0 +usage. +.PP +If your program is single-threaded, then you could also keep a dummy file +descriptor for overload situations (e.g. by opening \fI/dev/null\fR), and +when you run into \f(CW\*(C`ENFILE\*(C'\fR or \f(CW\*(C`EMFILE\*(C'\fR, close it, run \f(CW\*(C`accept\*(C'\fR, +close that fd, and create a new dummy fd. This will gracefully refuse +clients under typical overload conditions. +.PP +The last way to handle it is to simply log the error and \f(CW\*(C`exit\*(C'\fR, as +is often done with \f(CW\*(C`malloc\*(C'\fR failures, but this results in an easy +opportunity for a DoS attack. +.PP +\fIWatcher-Specific Functions\fR +.IX Subsection "Watcher-Specific Functions" +.IP "ev_io_init (ev_io *, callback, int fd, int events)" 4 +.IX Item "ev_io_init (ev_io *, callback, int fd, int events)" +.PD 0 +.IP "ev_io_set (ev_io *, int fd, int events)" 4 +.IX Item "ev_io_set (ev_io *, int fd, int events)" +.PD +Configures an \f(CW\*(C`ev_io\*(C'\fR watcher. The \f(CW\*(C`fd\*(C'\fR is the file descriptor to +receive events for and \f(CW\*(C`events\*(C'\fR is either \f(CW\*(C`EV_READ\*(C'\fR, \f(CW\*(C`EV_WRITE\*(C'\fR or +\&\f(CW\*(C`EV_READ | EV_WRITE\*(C'\fR, to express the desire to receive the given events. +.IP "int fd [read\-only]" 4 +.IX Item "int fd [read-only]" +The file descriptor being watched. +.IP "int events [read\-only]" 4 +.IX Item "int events [read-only]" +The events being watched. +.PP +\fIExamples\fR +.IX Subsection "Examples" +.PP +Example: Call \f(CW\*(C`stdin_readable_cb\*(C'\fR when \s-1STDIN_FILENO\s0 has become, well +readable, but only once. Since it is likely line-buffered, you could +attempt to read a whole line in the callback. +.PP +.Vb 6 +\& static void +\& stdin_readable_cb (struct ev_loop *loop, ev_io *w, int revents) +\& { +\& ev_io_stop (loop, w); +\& .. read from stdin here (or from w\->fd) and handle any I/O errors +\& } +\& +\& ... +\& struct ev_loop *loop = ev_default_init (0); +\& ev_io stdin_readable; +\& ev_io_init (&stdin_readable, stdin_readable_cb, STDIN_FILENO, EV_READ); +\& ev_io_start (loop, &stdin_readable); +\& ev_run (loop, 0); +.Ve +.ie n .SS """ev_timer"" \- relative and optionally repeating timeouts" +.el .SS "\f(CWev_timer\fP \- relative and optionally repeating timeouts" +.IX Subsection "ev_timer - relative and optionally repeating timeouts" +Timer watchers are simple relative timers that generate an event after a +given time, and optionally repeating in regular intervals after that. +.PP +The timers are based on real time, that is, if you register an event that +times out after an hour and you reset your system clock to January last +year, it will still time out after (roughly) one hour. \*(L"Roughly\*(R" because +detecting time jumps is hard, and some inaccuracies are unavoidable (the +monotonic clock option helps a lot here). +.PP +The callback is guaranteed to be invoked only \fIafter\fR its timeout has +passed (not \fIat\fR, so on systems with very low-resolution clocks this +might introduce a small delay, see \*(L"the special problem of being too +early\*(R", below). If multiple timers become ready during the same loop +iteration then the ones with earlier time-out values are invoked before +ones of the same priority with later time-out values (but this is no +longer true when a callback calls \f(CW\*(C`ev_run\*(C'\fR recursively). +.PP +\fIBe smart about timeouts\fR +.IX Subsection "Be smart about timeouts" +.PP +Many real-world problems involve some kind of timeout, usually for error +recovery. A typical example is an \s-1HTTP\s0 request \- if the other side hangs, +you want to raise some error after a while. +.PP +What follows are some ways to handle this problem, from obvious and +inefficient to smart and efficient. +.PP +In the following, a 60 second activity timeout is assumed \- a timeout that +gets reset to 60 seconds each time there is activity (e.g. each time some +data or other life sign was received). +.IP "1. Use a timer and stop, reinitialise and start it on activity." 4 +.IX Item "1. Use a timer and stop, reinitialise and start it on activity." +This is the most obvious, but not the most simple way: In the beginning, +start the watcher: +.Sp +.Vb 2 +\& ev_timer_init (timer, callback, 60., 0.); +\& ev_timer_start (loop, timer); +.Ve +.Sp +Then, each time there is some activity, \f(CW\*(C`ev_timer_stop\*(C'\fR it, initialise it +and start it again: +.Sp +.Vb 3 +\& ev_timer_stop (loop, timer); +\& ev_timer_set (timer, 60., 0.); +\& ev_timer_start (loop, timer); +.Ve +.Sp +This is relatively simple to implement, but means that each time there is +some activity, libev will first have to remove the timer from its internal +data structure and then add it again. Libev tries to be fast, but it's +still not a constant-time operation. +.ie n .IP "2. Use a timer and re-start it with ""ev_timer_again"" inactivity." 4 +.el .IP "2. Use a timer and re-start it with \f(CWev_timer_again\fR inactivity." 4 +.IX Item "2. Use a timer and re-start it with ev_timer_again inactivity." +This is the easiest way, and involves using \f(CW\*(C`ev_timer_again\*(C'\fR instead of +\&\f(CW\*(C`ev_timer_start\*(C'\fR. +.Sp +To implement this, configure an \f(CW\*(C`ev_timer\*(C'\fR with a \f(CW\*(C`repeat\*(C'\fR value +of \f(CW60\fR and then call \f(CW\*(C`ev_timer_again\*(C'\fR at start and each time you +successfully read or write some data. If you go into an idle state where +you do not expect data to travel on the socket, you can \f(CW\*(C`ev_timer_stop\*(C'\fR +the timer, and \f(CW\*(C`ev_timer_again\*(C'\fR will automatically restart it if need be. +.Sp +That means you can ignore both the \f(CW\*(C`ev_timer_start\*(C'\fR function and the +\&\f(CW\*(C`after\*(C'\fR argument to \f(CW\*(C`ev_timer_set\*(C'\fR, and only ever use the \f(CW\*(C`repeat\*(C'\fR +member and \f(CW\*(C`ev_timer_again\*(C'\fR. +.Sp +At start: +.Sp +.Vb 3 +\& ev_init (timer, callback); +\& timer\->repeat = 60.; +\& ev_timer_again (loop, timer); +.Ve +.Sp +Each time there is some activity: +.Sp +.Vb 1 +\& ev_timer_again (loop, timer); +.Ve +.Sp +It is even possible to change the time-out on the fly, regardless of +whether the watcher is active or not: +.Sp +.Vb 2 +\& timer\->repeat = 30.; +\& ev_timer_again (loop, timer); +.Ve +.Sp +This is slightly more efficient then stopping/starting the timer each time +you want to modify its timeout value, as libev does not have to completely +remove and re-insert the timer from/into its internal data structure. +.Sp +It is, however, even simpler than the \*(L"obvious\*(R" way to do it. +.IP "3. Let the timer time out, but then re-arm it as required." 4 +.IX Item "3. Let the timer time out, but then re-arm it as required." +This method is more tricky, but usually most efficient: Most timeouts are +relatively long compared to the intervals between other activity \- in +our example, within 60 seconds, there are usually many I/O events with +associated activity resets. +.Sp +In this case, it would be more efficient to leave the \f(CW\*(C`ev_timer\*(C'\fR alone, +but remember the time of last activity, and check for a real timeout only +within the callback: +.Sp +.Vb 3 +\& ev_tstamp timeout = 60.; +\& ev_tstamp last_activity; // time of last activity +\& ev_timer timer; +\& +\& static void +\& callback (EV_P_ ev_timer *w, int revents) +\& { +\& // calculate when the timeout would happen +\& ev_tstamp after = last_activity \- ev_now (EV_A) + timeout; +\& +\& // if negative, it means we the timeout already occurred +\& if (after < 0.) +\& { +\& // timeout occurred, take action +\& } +\& else +\& { +\& // callback was invoked, but there was some recent +\& // activity. simply restart the timer to time out +\& // after "after" seconds, which is the earliest time +\& // the timeout can occur. +\& ev_timer_set (w, after, 0.); +\& ev_timer_start (EV_A_ w); +\& } +\& } +.Ve +.Sp +To summarise the callback: first calculate in how many seconds the +timeout will occur (by calculating the absolute time when it would occur, +\&\f(CW\*(C`last_activity + timeout\*(C'\fR, and subtracting the current time, \f(CW\*(C`ev_now +(EV_A)\*(C'\fR from that). +.Sp +If this value is negative, then we are already past the timeout, i.e. we +timed out, and need to do whatever is needed in this case. +.Sp +Otherwise, we now the earliest time at which the timeout would trigger, +and simply start the timer with this timeout value. +.Sp +In other words, each time the callback is invoked it will check whether +the timeout occurred. If not, it will simply reschedule itself to check +again at the earliest time it could time out. Rinse. Repeat. +.Sp +This scheme causes more callback invocations (about one every 60 seconds +minus half the average time between activity), but virtually no calls to +libev to change the timeout. +.Sp +To start the machinery, simply initialise the watcher and set +\&\f(CW\*(C`last_activity\*(C'\fR to the current time (meaning there was some activity just +now), then call the callback, which will \*(L"do the right thing\*(R" and start +the timer: +.Sp +.Vb 3 +\& last_activity = ev_now (EV_A); +\& ev_init (&timer, callback); +\& callback (EV_A_ &timer, 0); +.Ve +.Sp +When there is some activity, simply store the current time in +\&\f(CW\*(C`last_activity\*(C'\fR, no libev calls at all: +.Sp +.Vb 2 +\& if (activity detected) +\& last_activity = ev_now (EV_A); +.Ve +.Sp +When your timeout value changes, then the timeout can be changed by simply +providing a new value, stopping the timer and calling the callback, which +will again do the right thing (for example, time out immediately :). +.Sp +.Vb 3 +\& timeout = new_value; +\& ev_timer_stop (EV_A_ &timer); +\& callback (EV_A_ &timer, 0); +.Ve +.Sp +This technique is slightly more complex, but in most cases where the +time-out is unlikely to be triggered, much more efficient. +.IP "4. Wee, just use a double-linked list for your timeouts." 4 +.IX Item "4. Wee, just use a double-linked list for your timeouts." +If there is not one request, but many thousands (millions...), all +employing some kind of timeout with the same timeout value, then one can +do even better: +.Sp +When starting the timeout, calculate the timeout value and put the timeout +at the \fIend\fR of the list. +.Sp +Then use an \f(CW\*(C`ev_timer\*(C'\fR to fire when the timeout at the \fIbeginning\fR of +the list is expected to fire (for example, using the technique #3). +.Sp +When there is some activity, remove the timer from the list, recalculate +the timeout, append it to the end of the list again, and make sure to +update the \f(CW\*(C`ev_timer\*(C'\fR if it was taken from the beginning of the list. +.Sp +This way, one can manage an unlimited number of timeouts in O(1) time for +starting, stopping and updating the timers, at the expense of a major +complication, and having to use a constant timeout. The constant timeout +ensures that the list stays sorted. +.PP +So which method the best? +.PP +Method #2 is a simple no-brain-required solution that is adequate in most +situations. Method #3 requires a bit more thinking, but handles many cases +better, and isn't very complicated either. In most case, choosing either +one is fine, with #3 being better in typical situations. +.PP +Method #1 is almost always a bad idea, and buys you nothing. Method #4 is +rather complicated, but extremely efficient, something that really pays +off after the first million or so of active timers, i.e. it's usually +overkill :) +.PP +\fIThe special problem of being too early\fR +.IX Subsection "The special problem of being too early" +.PP +If you ask a timer to call your callback after three seconds, then +you expect it to be invoked after three seconds \- but of course, this +cannot be guaranteed to infinite precision. Less obviously, it cannot be +guaranteed to any precision by libev \- imagine somebody suspending the +process with a \s-1STOP\s0 signal for a few hours for example. +.PP +So, libev tries to invoke your callback as soon as possible \fIafter\fR the +delay has occurred, but cannot guarantee this. +.PP +A less obvious failure mode is calling your callback too early: many event +loops compare timestamps with a \*(L"elapsed delay >= requested delay\*(R", but +this can cause your callback to be invoked much earlier than you would +expect. +.PP +To see why, imagine a system with a clock that only offers full second +resolution (think windows if you can't come up with a broken enough \s-1OS\s0 +yourself). If you schedule a one-second timer at the time 500.9, then the +event loop will schedule your timeout to elapse at a system time of 500 +(500.9 truncated to the resolution) + 1, or 501. +.PP +If an event library looks at the timeout 0.1s later, it will see \*(L"501 >= +501\*(R" and invoke the callback 0.1s after it was started, even though a +one-second delay was requested \- this is being \*(L"too early\*(R", despite best +intentions. +.PP +This is the reason why libev will never invoke the callback if the elapsed +delay equals the requested delay, but only when the elapsed delay is +larger than the requested delay. In the example above, libev would only invoke +the callback at system time 502, or 1.1s after the timer was started. +.PP +So, while libev cannot guarantee that your callback will be invoked +exactly when requested, it \fIcan\fR and \fIdoes\fR guarantee that the requested +delay has actually elapsed, or in other words, it always errs on the \*(L"too +late\*(R" side of things. +.PP +\fIThe special problem of time updates\fR +.IX Subsection "The special problem of time updates" +.PP +Establishing the current time is a costly operation (it usually takes +at least one system call): \s-1EV\s0 therefore updates its idea of the current +time only before and after \f(CW\*(C`ev_run\*(C'\fR collects new events, which causes a +growing difference between \f(CW\*(C`ev_now ()\*(C'\fR and \f(CW\*(C`ev_time ()\*(C'\fR when handling +lots of events in one iteration. +.PP +The relative timeouts are calculated relative to the \f(CW\*(C`ev_now ()\*(C'\fR +time. This is usually the right thing as this timestamp refers to the time +of the event triggering whatever timeout you are modifying/starting. If +you suspect event processing to be delayed and you \fIneed\fR to base the +timeout on the current time, use something like the following to adjust +for it: +.PP +.Vb 1 +\& ev_timer_set (&timer, after + (ev_time () \- ev_now ()), 0.); +.Ve +.PP +If the event loop is suspended for a long time, you can also force an +update of the time returned by \f(CW\*(C`ev_now ()\*(C'\fR by calling \f(CW\*(C`ev_now_update +()\*(C'\fR, although that will push the event time of all outstanding events +further into the future. +.PP +\fIThe special problem of unsynchronised clocks\fR +.IX Subsection "The special problem of unsynchronised clocks" +.PP +Modern systems have a variety of clocks \- libev itself uses the normal +\&\*(L"wall clock\*(R" clock and, if available, the monotonic clock (to avoid time +jumps). +.PP +Neither of these clocks is synchronised with each other or any other clock +on the system, so \f(CW\*(C`ev_time ()\*(C'\fR might return a considerably different time +than \f(CW\*(C`gettimeofday ()\*(C'\fR or \f(CW\*(C`time ()\*(C'\fR. On a GNU/Linux system, for example, +a call to \f(CW\*(C`gettimeofday\*(C'\fR might return a second count that is one higher +than a directly following call to \f(CW\*(C`time\*(C'\fR. +.PP +The moral of this is to only compare libev-related timestamps with +\&\f(CW\*(C`ev_time ()\*(C'\fR and \f(CW\*(C`ev_now ()\*(C'\fR, at least if you want better precision than +a second or so. +.PP +One more problem arises due to this lack of synchronisation: if libev uses +the system monotonic clock and you compare timestamps from \f(CW\*(C`ev_time\*(C'\fR +or \f(CW\*(C`ev_now\*(C'\fR from when you started your timer and when your callback is +invoked, you will find that sometimes the callback is a bit \*(L"early\*(R". +.PP +This is because \f(CW\*(C`ev_timer\*(C'\fRs work in real time, not wall clock time, so +libev makes sure your callback is not invoked before the delay happened, +\&\fImeasured according to the real time\fR, not the system clock. +.PP +If your timeouts are based on a physical timescale (e.g. \*(L"time out this +connection after 100 seconds\*(R") then this shouldn't bother you as it is +exactly the right behaviour. +.PP +If you want to compare wall clock/system timestamps to your timers, then +you need to use \f(CW\*(C`ev_periodic\*(C'\fRs, as these are based on the wall clock +time, where your comparisons will always generate correct results. +.PP +\fIThe special problems of suspended animation\fR +.IX Subsection "The special problems of suspended animation" +.PP +When you leave the server world it is quite customary to hit machines that +can suspend/hibernate \- what happens to the clocks during such a suspend? +.PP +Some quick tests made with a Linux 2.6.28 indicate that a suspend freezes +all processes, while the clocks (\f(CW\*(C`times\*(C'\fR, \f(CW\*(C`CLOCK_MONOTONIC\*(C'\fR) continue +to run until the system is suspended, but they will not advance while the +system is suspended. That means, on resume, it will be as if the program +was frozen for a few seconds, but the suspend time will not be counted +towards \f(CW\*(C`ev_timer\*(C'\fR when a monotonic clock source is used. The real time +clock advanced as expected, but if it is used as sole clocksource, then a +long suspend would be detected as a time jump by libev, and timers would +be adjusted accordingly. +.PP +I would not be surprised to see different behaviour in different between +operating systems, \s-1OS\s0 versions or even different hardware. +.PP +The other form of suspend (job control, or sending a \s-1SIGSTOP\s0) will see a +time jump in the monotonic clocks and the realtime clock. If the program +is suspended for a very long time, and monotonic clock sources are in use, +then you can expect \f(CW\*(C`ev_timer\*(C'\fRs to expire as the full suspension time +will be counted towards the timers. When no monotonic clock source is in +use, then libev will again assume a timejump and adjust accordingly. +.PP +It might be beneficial for this latter case to call \f(CW\*(C`ev_suspend\*(C'\fR +and \f(CW\*(C`ev_resume\*(C'\fR in code that handles \f(CW\*(C`SIGTSTP\*(C'\fR, to at least get +deterministic behaviour in this case (you can do nothing against +\&\f(CW\*(C`SIGSTOP\*(C'\fR). +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)" 4 +.IX Item "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)" +.PD 0 +.IP "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)" 4 +.IX Item "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)" +.PD +Configure the timer to trigger after \f(CW\*(C`after\*(C'\fR seconds. If \f(CW\*(C`repeat\*(C'\fR +is \f(CW0.\fR, then it will automatically be stopped once the timeout is +reached. If it is positive, then the timer will automatically be +configured to trigger again \f(CW\*(C`repeat\*(C'\fR seconds later, again, and again, +until stopped manually. +.Sp +The timer itself will do a best-effort at avoiding drift, that is, if +you configure a timer to trigger every 10 seconds, then it will normally +trigger at exactly 10 second intervals. If, however, your program cannot +keep up with the timer (because it takes longer than those 10 seconds to +do stuff) the timer will not fire more than once per event loop iteration. +.IP "ev_timer_again (loop, ev_timer *)" 4 +.IX Item "ev_timer_again (loop, ev_timer *)" +This will act as if the timer timed out, and restarts it again if it is +repeating. It basically works like calling \f(CW\*(C`ev_timer_stop\*(C'\fR, updating the +timeout to the \f(CW\*(C`repeat\*(C'\fR value and calling \f(CW\*(C`ev_timer_start\*(C'\fR. +.Sp +The exact semantics are as in the following rules, all of which will be +applied to the watcher: +.RS 4 +.IP "If the timer is pending, the pending status is always cleared." 4 +.IX Item "If the timer is pending, the pending status is always cleared." +.PD 0 +.IP "If the timer is started but non-repeating, stop it (as if it timed out, without invoking it)." 4 +.IX Item "If the timer is started but non-repeating, stop it (as if it timed out, without invoking it)." +.ie n .IP "If the timer is repeating, make the ""repeat"" value the new timeout and start the timer, if necessary." 4 +.el .IP "If the timer is repeating, make the \f(CWrepeat\fR value the new timeout and start the timer, if necessary." 4 +.IX Item "If the timer is repeating, make the repeat value the new timeout and start the timer, if necessary." +.RE +.RS 4 +.PD +.Sp +This sounds a bit complicated, see \*(L"Be smart about timeouts\*(R", above, for a +usage example. +.RE +.IP "ev_tstamp ev_timer_remaining (loop, ev_timer *)" 4 +.IX Item "ev_tstamp ev_timer_remaining (loop, ev_timer *)" +Returns the remaining time until a timer fires. If the timer is active, +then this time is relative to the current event loop time, otherwise it's +the timeout value currently configured. +.Sp +That is, after an \f(CW\*(C`ev_timer_set (w, 5, 7)\*(C'\fR, \f(CW\*(C`ev_timer_remaining\*(C'\fR returns +\&\f(CW5\fR. When the timer is started and one second passes, \f(CW\*(C`ev_timer_remaining\*(C'\fR +will return \f(CW4\fR. When the timer expires and is restarted, it will return +roughly \f(CW7\fR (likely slightly less as callback invocation takes some time, +too), and so on. +.IP "ev_tstamp repeat [read\-write]" 4 +.IX Item "ev_tstamp repeat [read-write]" +The current \f(CW\*(C`repeat\*(C'\fR value. Will be used each time the watcher times out +or \f(CW\*(C`ev_timer_again\*(C'\fR is called, and determines the next timeout (if any), +which is also when any modifications are taken into account. +.PP +\fIExamples\fR +.IX Subsection "Examples" +.PP +Example: Create a timer that fires after 60 seconds. +.PP +.Vb 5 +\& static void +\& one_minute_cb (struct ev_loop *loop, ev_timer *w, int revents) +\& { +\& .. one minute over, w is actually stopped right here +\& } +\& +\& ev_timer mytimer; +\& ev_timer_init (&mytimer, one_minute_cb, 60., 0.); +\& ev_timer_start (loop, &mytimer); +.Ve +.PP +Example: Create a timeout timer that times out after 10 seconds of +inactivity. +.PP +.Vb 5 +\& static void +\& timeout_cb (struct ev_loop *loop, ev_timer *w, int revents) +\& { +\& .. ten seconds without any activity +\& } +\& +\& ev_timer mytimer; +\& ev_timer_init (&mytimer, timeout_cb, 0., 10.); /* note, only repeat used */ +\& ev_timer_again (&mytimer); /* start timer */ +\& ev_run (loop, 0); +\& +\& // and in some piece of code that gets executed on any "activity": +\& // reset the timeout to start ticking again at 10 seconds +\& ev_timer_again (&mytimer); +.Ve +.ie n .SS """ev_periodic"" \- to cron or not to cron?" +.el .SS "\f(CWev_periodic\fP \- to cron or not to cron?" +.IX Subsection "ev_periodic - to cron or not to cron?" +Periodic watchers are also timers of a kind, but they are very versatile +(and unfortunately a bit complex). +.PP +Unlike \f(CW\*(C`ev_timer\*(C'\fR, periodic watchers are not based on real time (or +relative time, the physical time that passes) but on wall clock time +(absolute time, the thing you can read on your calender or clock). The +difference is that wall clock time can run faster or slower than real +time, and time jumps are not uncommon (e.g. when you adjust your +wrist-watch). +.PP +You can tell a periodic watcher to trigger after some specific point +in time: for example, if you tell a periodic watcher to trigger \*(L"in 10 +seconds\*(R" (by specifying e.g. \f(CW\*(C`ev_now () + 10.\*(C'\fR, that is, an absolute time +not a delay) and then reset your system clock to January of the previous +year, then it will take a year or more to trigger the event (unlike an +\&\f(CW\*(C`ev_timer\*(C'\fR, which would still trigger roughly 10 seconds after starting +it, as it uses a relative timeout). +.PP +\&\f(CW\*(C`ev_periodic\*(C'\fR watchers can also be used to implement vastly more complex +timers, such as triggering an event on each \*(L"midnight, local time\*(R", or +other complicated rules. This cannot be done with \f(CW\*(C`ev_timer\*(C'\fR watchers, as +those cannot react to time jumps. +.PP +As with timers, the callback is guaranteed to be invoked only when the +point in time where it is supposed to trigger has passed. If multiple +timers become ready during the same loop iteration then the ones with +earlier time-out values are invoked before ones with later time-out values +(but this is no longer true when a callback calls \f(CW\*(C`ev_run\*(C'\fR recursively). +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_periodic_init (ev_periodic *, callback, ev_tstamp offset, ev_tstamp interval, reschedule_cb)" 4 +.IX Item "ev_periodic_init (ev_periodic *, callback, ev_tstamp offset, ev_tstamp interval, reschedule_cb)" +.PD 0 +.IP "ev_periodic_set (ev_periodic *, ev_tstamp offset, ev_tstamp interval, reschedule_cb)" 4 +.IX Item "ev_periodic_set (ev_periodic *, ev_tstamp offset, ev_tstamp interval, reschedule_cb)" +.PD +Lots of arguments, let's sort it out... There are basically three modes of +operation, and we will explain them from simplest to most complex: +.RS 4 +.IP "\(bu" 4 +absolute timer (offset = absolute time, interval = 0, reschedule_cb = 0) +.Sp +In this configuration the watcher triggers an event after the wall clock +time \f(CW\*(C`offset\*(C'\fR has passed. It will not repeat and will not adjust when a +time jump occurs, that is, if it is to be run at January 1st 2011 then it +will be stopped and invoked when the system clock reaches or surpasses +this point in time. +.IP "\(bu" 4 +repeating interval timer (offset = offset within interval, interval > 0, reschedule_cb = 0) +.Sp +In this mode the watcher will always be scheduled to time out at the next +\&\f(CW\*(C`offset + N * interval\*(C'\fR time (for some integer N, which can also be +negative) and then repeat, regardless of any time jumps. The \f(CW\*(C`offset\*(C'\fR +argument is merely an offset into the \f(CW\*(C`interval\*(C'\fR periods. +.Sp +This can be used to create timers that do not drift with respect to the +system clock, for example, here is an \f(CW\*(C`ev_periodic\*(C'\fR that triggers each +hour, on the hour (with respect to \s-1UTC\s0): +.Sp +.Vb 1 +\& ev_periodic_set (&periodic, 0., 3600., 0); +.Ve +.Sp +This doesn't mean there will always be 3600 seconds in between triggers, +but only that the callback will be called when the system time shows a +full hour (\s-1UTC\s0), or more correctly, when the system time is evenly divisible +by 3600. +.Sp +Another way to think about it (for the mathematically inclined) is that +\&\f(CW\*(C`ev_periodic\*(C'\fR will try to run the callback in this mode at the next possible +time where \f(CW\*(C`time = offset (mod interval)\*(C'\fR, regardless of any time jumps. +.Sp +The \f(CW\*(C`interval\*(C'\fR \fI\s-1MUST\s0\fR be positive, and for numerical stability, the +interval value should be higher than \f(CW\*(C`1/8192\*(C'\fR (which is around 100 +microseconds) and \f(CW\*(C`offset\*(C'\fR should be higher than \f(CW0\fR and should have +at most a similar magnitude as the current time (say, within a factor of +ten). Typical values for offset are, in fact, \f(CW0\fR or something between +\&\f(CW0\fR and \f(CW\*(C`interval\*(C'\fR, which is also the recommended range. +.Sp +Note also that there is an upper limit to how often a timer can fire (\s-1CPU\s0 +speed for example), so if \f(CW\*(C`interval\*(C'\fR is very small then timing stability +will of course deteriorate. Libev itself tries to be exact to be about one +millisecond (if the \s-1OS\s0 supports it and the machine is fast enough). +.IP "\(bu" 4 +manual reschedule mode (offset ignored, interval ignored, reschedule_cb = callback) +.Sp +In this mode the values for \f(CW\*(C`interval\*(C'\fR and \f(CW\*(C`offset\*(C'\fR are both being +ignored. Instead, each time the periodic watcher gets scheduled, the +reschedule callback will be called with the watcher as first, and the +current time as second argument. +.Sp +\&\s-1NOTE: \s0\fIThis callback \s-1MUST NOT\s0 stop or destroy any periodic watcher, ever, +or make \s-1ANY\s0 other event loop modifications whatsoever, unless explicitly +allowed by documentation here\fR. +.Sp +If you need to stop it, return \f(CW\*(C`now + 1e30\*(C'\fR (or so, fudge fudge) and stop +it afterwards (e.g. by starting an \f(CW\*(C`ev_prepare\*(C'\fR watcher, which is the +only event loop modification you are allowed to do). +.Sp +The callback prototype is \f(CW\*(C`ev_tstamp (*reschedule_cb)(ev_periodic +*w, ev_tstamp now)\*(C'\fR, e.g.: +.Sp +.Vb 5 +\& static ev_tstamp +\& my_rescheduler (ev_periodic *w, ev_tstamp now) +\& { +\& return now + 60.; +\& } +.Ve +.Sp +It must return the next time to trigger, based on the passed time value +(that is, the lowest time value larger than to the second argument). It +will usually be called just before the callback will be triggered, but +might be called at other times, too. +.Sp +\&\s-1NOTE: \s0\fIThis callback must always return a time that is higher than or +equal to the passed \f(CI\*(C`now\*(C'\fI value\fR. +.Sp +This can be used to create very complex timers, such as a timer that +triggers on \*(L"next midnight, local time\*(R". To do this, you would calculate the +next midnight after \f(CW\*(C`now\*(C'\fR and return the timestamp value for this. How +you do this is, again, up to you (but it is not trivial, which is the main +reason I omitted it as an example). +.RE +.RS 4 +.RE +.IP "ev_periodic_again (loop, ev_periodic *)" 4 +.IX Item "ev_periodic_again (loop, ev_periodic *)" +Simply stops and restarts the periodic watcher again. This is only useful +when you changed some parameters or the reschedule callback would return +a different time than the last time it was called (e.g. in a crond like +program when the crontabs have changed). +.IP "ev_tstamp ev_periodic_at (ev_periodic *)" 4 +.IX Item "ev_tstamp ev_periodic_at (ev_periodic *)" +When active, returns the absolute time that the watcher is supposed +to trigger next. This is not the same as the \f(CW\*(C`offset\*(C'\fR argument to +\&\f(CW\*(C`ev_periodic_set\*(C'\fR, but indeed works even in interval and manual +rescheduling modes. +.IP "ev_tstamp offset [read\-write]" 4 +.IX Item "ev_tstamp offset [read-write]" +When repeating, this contains the offset value, otherwise this is the +absolute point in time (the \f(CW\*(C`offset\*(C'\fR value passed to \f(CW\*(C`ev_periodic_set\*(C'\fR, +although libev might modify this value for better numerical stability). +.Sp +Can be modified any time, but changes only take effect when the periodic +timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called. +.IP "ev_tstamp interval [read\-write]" 4 +.IX Item "ev_tstamp interval [read-write]" +The current interval value. Can be modified any time, but changes only +take effect when the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being +called. +.IP "ev_tstamp (*reschedule_cb)(ev_periodic *w, ev_tstamp now) [read\-write]" 4 +.IX Item "ev_tstamp (*reschedule_cb)(ev_periodic *w, ev_tstamp now) [read-write]" +The current reschedule callback, or \f(CW0\fR, if this functionality is +switched off. Can be changed any time, but changes only take effect when +the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called. +.PP +\fIExamples\fR +.IX Subsection "Examples" +.PP +Example: Call a callback every hour, or, more precisely, whenever the +system time is divisible by 3600. The callback invocation times have +potentially a lot of jitter, but good long-term stability. +.PP +.Vb 5 +\& static void +\& clock_cb (struct ev_loop *loop, ev_periodic *w, int revents) +\& { +\& ... its now a full hour (UTC, or TAI or whatever your clock follows) +\& } +\& +\& ev_periodic hourly_tick; +\& ev_periodic_init (&hourly_tick, clock_cb, 0., 3600., 0); +\& ev_periodic_start (loop, &hourly_tick); +.Ve +.PP +Example: The same as above, but use a reschedule callback to do it: +.PP +.Vb 1 +\& #include +\& +\& static ev_tstamp +\& my_scheduler_cb (ev_periodic *w, ev_tstamp now) +\& { +\& return now + (3600. \- fmod (now, 3600.)); +\& } +\& +\& ev_periodic_init (&hourly_tick, clock_cb, 0., 0., my_scheduler_cb); +.Ve +.PP +Example: Call a callback every hour, starting now: +.PP +.Vb 4 +\& ev_periodic hourly_tick; +\& ev_periodic_init (&hourly_tick, clock_cb, +\& fmod (ev_now (loop), 3600.), 3600., 0); +\& ev_periodic_start (loop, &hourly_tick); +.Ve +.ie n .SS """ev_signal"" \- signal me when a signal gets signalled!" +.el .SS "\f(CWev_signal\fP \- signal me when a signal gets signalled!" +.IX Subsection "ev_signal - signal me when a signal gets signalled!" +Signal watchers will trigger an event when the process receives a specific +signal one or more times. Even though signals are very asynchronous, libev +will try its best to deliver signals synchronously, i.e. as part of the +normal event processing, like any other event. +.PP +If you want signals to be delivered truly asynchronously, just use +\&\f(CW\*(C`sigaction\*(C'\fR as you would do without libev and forget about sharing +the signal. You can even use \f(CW\*(C`ev_async\*(C'\fR from a signal handler to +synchronously wake up an event loop. +.PP +You can configure as many watchers as you like for the same signal, but +only within the same loop, i.e. you can watch for \f(CW\*(C`SIGINT\*(C'\fR in your +default loop and for \f(CW\*(C`SIGIO\*(C'\fR in another loop, but you cannot watch for +\&\f(CW\*(C`SIGINT\*(C'\fR in both the default loop and another loop at the same time. At +the moment, \f(CW\*(C`SIGCHLD\*(C'\fR is permanently tied to the default loop. +.PP +Only after the first watcher for a signal is started will libev actually +register something with the kernel. It thus coexists with your own signal +handlers as long as you don't register any with libev for the same signal. +.PP +If possible and supported, libev will install its handlers with +\&\f(CW\*(C`SA_RESTART\*(C'\fR (or equivalent) behaviour enabled, so system calls should +not be unduly interrupted. If you have a problem with system calls getting +interrupted by signals you can block all signals in an \f(CW\*(C`ev_check\*(C'\fR watcher +and unblock them in an \f(CW\*(C`ev_prepare\*(C'\fR watcher. +.PP +\fIThe special problem of inheritance over fork/execve/pthread_create\fR +.IX Subsection "The special problem of inheritance over fork/execve/pthread_create" +.PP +Both the signal mask (\f(CW\*(C`sigprocmask\*(C'\fR) and the signal disposition +(\f(CW\*(C`sigaction\*(C'\fR) are unspecified after starting a signal watcher (and after +stopping it again), that is, libev might or might not block the signal, +and might or might not set or restore the installed signal handler (but +see \f(CW\*(C`EVFLAG_NOSIGMASK\*(C'\fR). +.PP +While this does not matter for the signal disposition (libev never +sets signals to \f(CW\*(C`SIG_IGN\*(C'\fR, so handlers will be reset to \f(CW\*(C`SIG_DFL\*(C'\fR on +\&\f(CW\*(C`execve\*(C'\fR), this matters for the signal mask: many programs do not expect +certain signals to be blocked. +.PP +This means that before calling \f(CW\*(C`exec\*(C'\fR (from the child) you should reset +the signal mask to whatever \*(L"default\*(R" you expect (all clear is a good +choice usually). +.PP +The simplest way to ensure that the signal mask is reset in the child is +to install a fork handler with \f(CW\*(C`pthread_atfork\*(C'\fR that resets it. That will +catch fork calls done by libraries (such as the libc) as well. +.PP +In current versions of libev, the signal will not be blocked indefinitely +unless you use the \f(CW\*(C`signalfd\*(C'\fR \s-1API \s0(\f(CW\*(C`EV_SIGNALFD\*(C'\fR). While this reduces +the window of opportunity for problems, it will not go away, as libev +\&\fIhas\fR to modify the signal mask, at least temporarily. +.PP +So I can't stress this enough: \fIIf you do not reset your signal mask when +you expect it to be empty, you have a race condition in your code\fR. This +is not a libev-specific thing, this is true for most event libraries. +.PP +\fIThe special problem of threads signal handling\fR +.IX Subsection "The special problem of threads signal handling" +.PP +\&\s-1POSIX\s0 threads has problematic signal handling semantics, specifically, +a lot of functionality (sigfd, sigwait etc.) only really works if all +threads in a process block signals, which is hard to achieve. +.PP +When you want to use sigwait (or mix libev signal handling with your own +for the same signals), you can tackle this problem by globally blocking +all signals before creating any threads (or creating them with a fully set +sigprocmask) and also specifying the \f(CW\*(C`EVFLAG_NOSIGMASK\*(C'\fR when creating +loops. Then designate one thread as \*(L"signal receiver thread\*(R" which handles +these signals. You can pass on any signals that libev might be interested +in by calling \f(CW\*(C`ev_feed_signal\*(C'\fR. +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_signal_init (ev_signal *, callback, int signum)" 4 +.IX Item "ev_signal_init (ev_signal *, callback, int signum)" +.PD 0 +.IP "ev_signal_set (ev_signal *, int signum)" 4 +.IX Item "ev_signal_set (ev_signal *, int signum)" +.PD +Configures the watcher to trigger on the given signal number (usually one +of the \f(CW\*(C`SIGxxx\*(C'\fR constants). +.IP "int signum [read\-only]" 4 +.IX Item "int signum [read-only]" +The signal the watcher watches out for. +.PP +\fIExamples\fR +.IX Subsection "Examples" +.PP +Example: Try to exit cleanly on \s-1SIGINT.\s0 +.PP +.Vb 5 +\& static void +\& sigint_cb (struct ev_loop *loop, ev_signal *w, int revents) +\& { +\& ev_break (loop, EVBREAK_ALL); +\& } +\& +\& ev_signal signal_watcher; +\& ev_signal_init (&signal_watcher, sigint_cb, SIGINT); +\& ev_signal_start (loop, &signal_watcher); +.Ve +.ie n .SS """ev_child"" \- watch out for process status changes" +.el .SS "\f(CWev_child\fP \- watch out for process status changes" +.IX Subsection "ev_child - watch out for process status changes" +Child watchers trigger when your process receives a \s-1SIGCHLD\s0 in response to +some child status changes (most typically when a child of yours dies or +exits). It is permissible to install a child watcher \fIafter\fR the child +has been forked (which implies it might have already exited), as long +as the event loop isn't entered (or is continued from a watcher), i.e., +forking and then immediately registering a watcher for the child is fine, +but forking and registering a watcher a few event loop iterations later or +in the next callback invocation is not. +.PP +Only the default event loop is capable of handling signals, and therefore +you can only register child watchers in the default event loop. +.PP +Due to some design glitches inside libev, child watchers will always be +handled at maximum priority (their priority is set to \f(CW\*(C`EV_MAXPRI\*(C'\fR by +libev) +.PP +\fIProcess Interaction\fR +.IX Subsection "Process Interaction" +.PP +Libev grabs \f(CW\*(C`SIGCHLD\*(C'\fR as soon as the default event loop is +initialised. This is necessary to guarantee proper behaviour even if the +first child watcher is started after the child exits. The occurrence +of \f(CW\*(C`SIGCHLD\*(C'\fR is recorded asynchronously, but child reaping is done +synchronously as part of the event loop processing. Libev always reaps all +children, even ones not watched. +.PP +\fIOverriding the Built-In Processing\fR +.IX Subsection "Overriding the Built-In Processing" +.PP +Libev offers no special support for overriding the built-in child +processing, but if your application collides with libev's default child +handler, you can override it easily by installing your own handler for +\&\f(CW\*(C`SIGCHLD\*(C'\fR after initialising the default loop, and making sure the +default loop never gets destroyed. You are encouraged, however, to use an +event-based approach to child reaping and thus use libev's support for +that, so other libev users can use \f(CW\*(C`ev_child\*(C'\fR watchers freely. +.PP +\fIStopping the Child Watcher\fR +.IX Subsection "Stopping the Child Watcher" +.PP +Currently, the child watcher never gets stopped, even when the +child terminates, so normally one needs to stop the watcher in the +callback. Future versions of libev might stop the watcher automatically +when a child exit is detected (calling \f(CW\*(C`ev_child_stop\*(C'\fR twice is not a +problem). +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_child_init (ev_child *, callback, int pid, int trace)" 4 +.IX Item "ev_child_init (ev_child *, callback, int pid, int trace)" +.PD 0 +.IP "ev_child_set (ev_child *, int pid, int trace)" 4 +.IX Item "ev_child_set (ev_child *, int pid, int trace)" +.PD +Configures the watcher to wait for status changes of process \f(CW\*(C`pid\*(C'\fR (or +\&\fIany\fR process if \f(CW\*(C`pid\*(C'\fR is specified as \f(CW0\fR). The callback can look +at the \f(CW\*(C`rstatus\*(C'\fR member of the \f(CW\*(C`ev_child\*(C'\fR watcher structure to see +the status word (use the macros from \f(CW\*(C`sys/wait.h\*(C'\fR and see your systems +\&\f(CW\*(C`waitpid\*(C'\fR documentation). The \f(CW\*(C`rpid\*(C'\fR member contains the pid of the +process causing the status change. \f(CW\*(C`trace\*(C'\fR must be either \f(CW0\fR (only +activate the watcher when the process terminates) or \f(CW1\fR (additionally +activate the watcher when the process is stopped or continued). +.IP "int pid [read\-only]" 4 +.IX Item "int pid [read-only]" +The process id this watcher watches out for, or \f(CW0\fR, meaning any process id. +.IP "int rpid [read\-write]" 4 +.IX Item "int rpid [read-write]" +The process id that detected a status change. +.IP "int rstatus [read\-write]" 4 +.IX Item "int rstatus [read-write]" +The process exit/trace status caused by \f(CW\*(C`rpid\*(C'\fR (see your systems +\&\f(CW\*(C`waitpid\*(C'\fR and \f(CW\*(C`sys/wait.h\*(C'\fR documentation for details). +.PP +\fIExamples\fR +.IX Subsection "Examples" +.PP +Example: \f(CW\*(C`fork()\*(C'\fR a new process and install a child handler to wait for +its completion. +.PP +.Vb 1 +\& ev_child cw; +\& +\& static void +\& child_cb (EV_P_ ev_child *w, int revents) +\& { +\& ev_child_stop (EV_A_ w); +\& printf ("process %d exited with status %x\en", w\->rpid, w\->rstatus); +\& } +\& +\& pid_t pid = fork (); +\& +\& if (pid < 0) +\& // error +\& else if (pid == 0) +\& { +\& // the forked child executes here +\& exit (1); +\& } +\& else +\& { +\& ev_child_init (&cw, child_cb, pid, 0); +\& ev_child_start (EV_DEFAULT_ &cw); +\& } +.Ve +.ie n .SS """ev_stat"" \- did the file attributes just change?" +.el .SS "\f(CWev_stat\fP \- did the file attributes just change?" +.IX Subsection "ev_stat - did the file attributes just change?" +This watches a file system path for attribute changes. That is, it calls +\&\f(CW\*(C`stat\*(C'\fR on that path in regular intervals (or when the \s-1OS\s0 says it changed) +and sees if it changed compared to the last time, invoking the callback +if it did. Starting the watcher \f(CW\*(C`stat\*(C'\fR's the file, so only changes that +happen after the watcher has been started will be reported. +.PP +The path does not need to exist: changing from \*(L"path exists\*(R" to \*(L"path does +not exist\*(R" is a status change like any other. The condition \*(L"path does not +exist\*(R" (or more correctly \*(L"path cannot be stat'ed\*(R") is signified by the +\&\f(CW\*(C`st_nlink\*(C'\fR field being zero (which is otherwise always forced to be at +least one) and all the other fields of the stat buffer having unspecified +contents. +.PP +The path \fImust not\fR end in a slash or contain special components such as +\&\f(CW\*(C`.\*(C'\fR or \f(CW\*(C`..\*(C'\fR. The path \fIshould\fR be absolute: If it is relative and +your working directory changes, then the behaviour is undefined. +.PP +Since there is no portable change notification interface available, the +portable implementation simply calls \f(CWstat(2)\fR regularly on the path +to see if it changed somehow. You can specify a recommended polling +interval for this case. If you specify a polling interval of \f(CW0\fR (highly +recommended!) then a \fIsuitable, unspecified default\fR value will be used +(which you can expect to be around five seconds, although this might +change dynamically). Libev will also impose a minimum interval which is +currently around \f(CW0.1\fR, but that's usually overkill. +.PP +This watcher type is not meant for massive numbers of stat watchers, +as even with OS-supported change notifications, this can be +resource-intensive. +.PP +At the time of this writing, the only OS-specific interface implemented +is the Linux inotify interface (implementing kqueue support is left as an +exercise for the reader. Note, however, that the author sees no way of +implementing \f(CW\*(C`ev_stat\*(C'\fR semantics with kqueue, except as a hint). +.PP +\fI\s-1ABI\s0 Issues (Largefile Support)\fR +.IX Subsection "ABI Issues (Largefile Support)" +.PP +Libev by default (unless the user overrides this) uses the default +compilation environment, which means that on systems with large file +support disabled by default, you get the 32 bit version of the stat +structure. When using the library from programs that change the \s-1ABI\s0 to +use 64 bit file offsets the programs will fail. In that case you have to +compile libev with the same flags to get binary compatibility. This is +obviously the case with any flags that change the \s-1ABI,\s0 but the problem is +most noticeably displayed with ev_stat and large file support. +.PP +The solution for this is to lobby your distribution maker to make large +file interfaces available by default (as e.g. FreeBSD does) and not +optional. Libev cannot simply switch on large file support because it has +to exchange stat structures with application programs compiled using the +default compilation environment. +.PP +\fIInotify and Kqueue\fR +.IX Subsection "Inotify and Kqueue" +.PP +When \f(CW\*(C`inotify (7)\*(C'\fR support has been compiled into libev and present at +runtime, it will be used to speed up change detection where possible. The +inotify descriptor will be created lazily when the first \f(CW\*(C`ev_stat\*(C'\fR +watcher is being started. +.PP +Inotify presence does not change the semantics of \f(CW\*(C`ev_stat\*(C'\fR watchers +except that changes might be detected earlier, and in some cases, to avoid +making regular \f(CW\*(C`stat\*(C'\fR calls. Even in the presence of inotify support +there are many cases where libev has to resort to regular \f(CW\*(C`stat\*(C'\fR polling, +but as long as kernel 2.6.25 or newer is used (2.6.24 and older have too +many bugs), the path exists (i.e. stat succeeds), and the path resides on +a local filesystem (libev currently assumes only ext2/3, jfs, reiserfs and +xfs are fully working) libev usually gets away without polling. +.PP +There is no support for kqueue, as apparently it cannot be used to +implement this functionality, due to the requirement of having a file +descriptor open on the object at all times, and detecting renames, unlinks +etc. is difficult. +.PP +\fI\f(CI\*(C`stat ()\*(C'\fI is a synchronous operation\fR +.IX Subsection "stat () is a synchronous operation" +.PP +Libev doesn't normally do any kind of I/O itself, and so is not blocking +the process. The exception are \f(CW\*(C`ev_stat\*(C'\fR watchers \- those call \f(CW\*(C`stat +()\*(C'\fR, which is a synchronous operation. +.PP +For local paths, this usually doesn't matter: unless the system is very +busy or the intervals between stat's are large, a stat call will be fast, +as the path data is usually in memory already (except when starting the +watcher). +.PP +For networked file systems, calling \f(CW\*(C`stat ()\*(C'\fR can block an indefinite +time due to network issues, and even under good conditions, a stat call +often takes multiple milliseconds. +.PP +Therefore, it is best to avoid using \f(CW\*(C`ev_stat\*(C'\fR watchers on networked +paths, although this is fully supported by libev. +.PP +\fIThe special problem of stat time resolution\fR +.IX Subsection "The special problem of stat time resolution" +.PP +The \f(CW\*(C`stat ()\*(C'\fR system call only supports full-second resolution portably, +and even on systems where the resolution is higher, most file systems +still only support whole seconds. +.PP +That means that, if the time is the only thing that changes, you can +easily miss updates: on the first update, \f(CW\*(C`ev_stat\*(C'\fR detects a change and +calls your callback, which does something. When there is another update +within the same second, \f(CW\*(C`ev_stat\*(C'\fR will be unable to detect unless the +stat data does change in other ways (e.g. file size). +.PP +The solution to this is to delay acting on a change for slightly more +than a second (or till slightly after the next full second boundary), using +a roughly one-second-delay \f(CW\*(C`ev_timer\*(C'\fR (e.g. \f(CW\*(C`ev_timer_set (w, 0., 1.02); +ev_timer_again (loop, w)\*(C'\fR). +.PP +The \f(CW.02\fR offset is added to work around small timing inconsistencies +of some operating systems (where the second counter of the current time +might be be delayed. One such system is the Linux kernel, where a call to +\&\f(CW\*(C`gettimeofday\*(C'\fR might return a timestamp with a full second later than +a subsequent \f(CW\*(C`time\*(C'\fR call \- if the equivalent of \f(CW\*(C`time ()\*(C'\fR is used to +update file times then there will be a small window where the kernel uses +the previous second to update file times but libev might already execute +the timer callback). +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)" 4 +.IX Item "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)" +.PD 0 +.IP "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)" 4 +.IX Item "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)" +.PD +Configures the watcher to wait for status changes of the given +\&\f(CW\*(C`path\*(C'\fR. The \f(CW\*(C`interval\*(C'\fR is a hint on how quickly a change is expected to +be detected and should normally be specified as \f(CW0\fR to let libev choose +a suitable value. The memory pointed to by \f(CW\*(C`path\*(C'\fR must point to the same +path for as long as the watcher is active. +.Sp +The callback will receive an \f(CW\*(C`EV_STAT\*(C'\fR event when a change was detected, +relative to the attributes at the time the watcher was started (or the +last change was detected). +.IP "ev_stat_stat (loop, ev_stat *)" 4 +.IX Item "ev_stat_stat (loop, ev_stat *)" +Updates the stat buffer immediately with new values. If you change the +watched path in your callback, you could call this function to avoid +detecting this change (while introducing a race condition if you are not +the only one changing the path). Can also be useful simply to find out the +new values. +.IP "ev_statdata attr [read\-only]" 4 +.IX Item "ev_statdata attr [read-only]" +The most-recently detected attributes of the file. Although the type is +\&\f(CW\*(C`ev_statdata\*(C'\fR, this is usually the (or one of the) \f(CW\*(C`struct stat\*(C'\fR types +suitable for your system, but you can only rely on the POSIX-standardised +members to be present. If the \f(CW\*(C`st_nlink\*(C'\fR member is \f(CW0\fR, then there was +some error while \f(CW\*(C`stat\*(C'\fRing the file. +.IP "ev_statdata prev [read\-only]" 4 +.IX Item "ev_statdata prev [read-only]" +The previous attributes of the file. The callback gets invoked whenever +\&\f(CW\*(C`prev\*(C'\fR != \f(CW\*(C`attr\*(C'\fR, or, more precisely, one or more of these members +differ: \f(CW\*(C`st_dev\*(C'\fR, \f(CW\*(C`st_ino\*(C'\fR, \f(CW\*(C`st_mode\*(C'\fR, \f(CW\*(C`st_nlink\*(C'\fR, \f(CW\*(C`st_uid\*(C'\fR, +\&\f(CW\*(C`st_gid\*(C'\fR, \f(CW\*(C`st_rdev\*(C'\fR, \f(CW\*(C`st_size\*(C'\fR, \f(CW\*(C`st_atime\*(C'\fR, \f(CW\*(C`st_mtime\*(C'\fR, \f(CW\*(C`st_ctime\*(C'\fR. +.IP "ev_tstamp interval [read\-only]" 4 +.IX Item "ev_tstamp interval [read-only]" +The specified interval. +.IP "const char *path [read\-only]" 4 +.IX Item "const char *path [read-only]" +The file system path that is being watched. +.PP +\fIExamples\fR +.IX Subsection "Examples" +.PP +Example: Watch \f(CW\*(C`/etc/passwd\*(C'\fR for attribute changes. +.PP +.Vb 10 +\& static void +\& passwd_cb (struct ev_loop *loop, ev_stat *w, int revents) +\& { +\& /* /etc/passwd changed in some way */ +\& if (w\->attr.st_nlink) +\& { +\& printf ("passwd current size %ld\en", (long)w\->attr.st_size); +\& printf ("passwd current atime %ld\en", (long)w\->attr.st_mtime); +\& printf ("passwd current mtime %ld\en", (long)w\->attr.st_mtime); +\& } +\& else +\& /* you shalt not abuse printf for puts */ +\& puts ("wow, /etc/passwd is not there, expect problems. " +\& "if this is windows, they already arrived\en"); +\& } +\& +\& ... +\& ev_stat passwd; +\& +\& ev_stat_init (&passwd, passwd_cb, "/etc/passwd", 0.); +\& ev_stat_start (loop, &passwd); +.Ve +.PP +Example: Like above, but additionally use a one-second delay so we do not +miss updates (however, frequent updates will delay processing, too, so +one might do the work both on \f(CW\*(C`ev_stat\*(C'\fR callback invocation \fIand\fR on +\&\f(CW\*(C`ev_timer\*(C'\fR callback invocation). +.PP +.Vb 2 +\& static ev_stat passwd; +\& static ev_timer timer; +\& +\& static void +\& timer_cb (EV_P_ ev_timer *w, int revents) +\& { +\& ev_timer_stop (EV_A_ w); +\& +\& /* now it\*(Aqs one second after the most recent passwd change */ +\& } +\& +\& static void +\& stat_cb (EV_P_ ev_stat *w, int revents) +\& { +\& /* reset the one\-second timer */ +\& ev_timer_again (EV_A_ &timer); +\& } +\& +\& ... +\& ev_stat_init (&passwd, stat_cb, "/etc/passwd", 0.); +\& ev_stat_start (loop, &passwd); +\& ev_timer_init (&timer, timer_cb, 0., 1.02); +.Ve +.ie n .SS """ev_idle"" \- when you've got nothing better to do..." +.el .SS "\f(CWev_idle\fP \- when you've got nothing better to do..." +.IX Subsection "ev_idle - when you've got nothing better to do..." +Idle watchers trigger events when no other events of the same or higher +priority are pending (prepare, check and other idle watchers do not count +as receiving \*(L"events\*(R"). +.PP +That is, as long as your process is busy handling sockets or timeouts +(or even signals, imagine) of the same or higher priority it will not be +triggered. But when your process is idle (or only lower-priority watchers +are pending), the idle watchers are being called once per event loop +iteration \- until stopped, that is, or your process receives more events +and becomes busy again with higher priority stuff. +.PP +The most noteworthy effect is that as long as any idle watchers are +active, the process will not block when waiting for new events. +.PP +Apart from keeping your process non-blocking (which is a useful +effect on its own sometimes), idle watchers are a good place to do +\&\*(L"pseudo-background processing\*(R", or delay processing stuff to after the +event loop has handled all outstanding events. +.PP +\fIAbusing an \f(CI\*(C`ev_idle\*(C'\fI watcher for its side-effect\fR +.IX Subsection "Abusing an ev_idle watcher for its side-effect" +.PP +As long as there is at least one active idle watcher, libev will never +sleep unnecessarily. Or in other words, it will loop as fast as possible. +For this to work, the idle watcher doesn't need to be invoked at all \- the +lowest priority will do. +.PP +This mode of operation can be useful together with an \f(CW\*(C`ev_check\*(C'\fR watcher, +to do something on each event loop iteration \- for example to balance load +between different connections. +.PP +See \*(L"Abusing an ev_check watcher for its side-effect\*(R" for a longer +example. +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_idle_init (ev_idle *, callback)" 4 +.IX Item "ev_idle_init (ev_idle *, callback)" +Initialises and configures the idle watcher \- it has no parameters of any +kind. There is a \f(CW\*(C`ev_idle_set\*(C'\fR macro, but using it is utterly pointless, +believe me. +.PP +\fIExamples\fR +.IX Subsection "Examples" +.PP +Example: Dynamically allocate an \f(CW\*(C`ev_idle\*(C'\fR watcher, start it, and in the +callback, free it. Also, use no error checking, as usual. +.PP +.Vb 5 +\& static void +\& idle_cb (struct ev_loop *loop, ev_idle *w, int revents) +\& { +\& // stop the watcher +\& ev_idle_stop (loop, w); +\& +\& // now we can free it +\& free (w); +\& +\& // now do something you wanted to do when the program has +\& // no longer anything immediate to do. +\& } +\& +\& ev_idle *idle_watcher = malloc (sizeof (ev_idle)); +\& ev_idle_init (idle_watcher, idle_cb); +\& ev_idle_start (loop, idle_watcher); +.Ve +.ie n .SS """ev_prepare"" and ""ev_check"" \- customise your event loop!" +.el .SS "\f(CWev_prepare\fP and \f(CWev_check\fP \- customise your event loop!" +.IX Subsection "ev_prepare and ev_check - customise your event loop!" +Prepare and check watchers are often (but not always) used in pairs: +prepare watchers get invoked before the process blocks and check watchers +afterwards. +.PP +You \fImust not\fR call \f(CW\*(C`ev_run\*(C'\fR (or similar functions that enter the +current event loop) or \f(CW\*(C`ev_loop_fork\*(C'\fR from either \f(CW\*(C`ev_prepare\*(C'\fR or +\&\f(CW\*(C`ev_check\*(C'\fR watchers. Other loops than the current one are fine, +however. The rationale behind this is that you do not need to check +for recursion in those watchers, i.e. the sequence will always be +\&\f(CW\*(C`ev_prepare\*(C'\fR, blocking, \f(CW\*(C`ev_check\*(C'\fR so if you have one watcher of each +kind they will always be called in pairs bracketing the blocking call. +.PP +Their main purpose is to integrate other event mechanisms into libev and +their use is somewhat advanced. They could be used, for example, to track +variable changes, implement your own watchers, integrate net-snmp or a +coroutine library and lots more. They are also occasionally useful if +you cache some data and want to flush it before blocking (for example, +in X programs you might want to do an \f(CW\*(C`XFlush ()\*(C'\fR in an \f(CW\*(C`ev_prepare\*(C'\fR +watcher). +.PP +This is done by examining in each prepare call which file descriptors +need to be watched by the other library, registering \f(CW\*(C`ev_io\*(C'\fR watchers +for them and starting an \f(CW\*(C`ev_timer\*(C'\fR watcher for any timeouts (many +libraries provide exactly this functionality). Then, in the check watcher, +you check for any events that occurred (by checking the pending status +of all watchers and stopping them) and call back into the library. The +I/O and timer callbacks will never actually be called (but must be valid +nevertheless, because you never know, you know?). +.PP +As another example, the Perl Coro module uses these hooks to integrate +coroutines into libev programs, by yielding to other active coroutines +during each prepare and only letting the process block if no coroutines +are ready to run (it's actually more complicated: it only runs coroutines +with priority higher than or equal to the event loop and one coroutine +of lower priority, but only once, using idle watchers to keep the event +loop from blocking if lower-priority coroutines are active, thus mapping +low-priority coroutines to idle/background tasks). +.PP +When used for this purpose, it is recommended to give \f(CW\*(C`ev_check\*(C'\fR watchers +highest (\f(CW\*(C`EV_MAXPRI\*(C'\fR) priority, to ensure that they are being run before +any other watchers after the poll (this doesn't matter for \f(CW\*(C`ev_prepare\*(C'\fR +watchers). +.PP +Also, \f(CW\*(C`ev_check\*(C'\fR watchers (and \f(CW\*(C`ev_prepare\*(C'\fR watchers, too) should not +activate (\*(L"feed\*(R") events into libev. While libev fully supports this, they +might get executed before other \f(CW\*(C`ev_check\*(C'\fR watchers did their job. As +\&\f(CW\*(C`ev_check\*(C'\fR watchers are often used to embed other (non-libev) event +loops those other event loops might be in an unusable state until their +\&\f(CW\*(C`ev_check\*(C'\fR watcher ran (always remind yourself to coexist peacefully with +others). +.PP +\fIAbusing an \f(CI\*(C`ev_check\*(C'\fI watcher for its side-effect\fR +.IX Subsection "Abusing an ev_check watcher for its side-effect" +.PP +\&\f(CW\*(C`ev_check\*(C'\fR (and less often also \f(CW\*(C`ev_prepare\*(C'\fR) watchers can also be +useful because they are called once per event loop iteration. For +example, if you want to handle a large number of connections fairly, you +normally only do a bit of work for each active connection, and if there +is more work to do, you wait for the next event loop iteration, so other +connections have a chance of making progress. +.PP +Using an \f(CW\*(C`ev_check\*(C'\fR watcher is almost enough: it will be called on the +next event loop iteration. However, that isn't as soon as possible \- +without external events, your \f(CW\*(C`ev_check\*(C'\fR watcher will not be invoked. +.PP +This is where \f(CW\*(C`ev_idle\*(C'\fR watchers come in handy \- all you need is a +single global idle watcher that is active as long as you have one active +\&\f(CW\*(C`ev_check\*(C'\fR watcher. The \f(CW\*(C`ev_idle\*(C'\fR watcher makes sure the event loop +will not sleep, and the \f(CW\*(C`ev_check\*(C'\fR watcher makes sure a callback gets +invoked. Neither watcher alone can do that. +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_prepare_init (ev_prepare *, callback)" 4 +.IX Item "ev_prepare_init (ev_prepare *, callback)" +.PD 0 +.IP "ev_check_init (ev_check *, callback)" 4 +.IX Item "ev_check_init (ev_check *, callback)" +.PD +Initialises and configures the prepare or check watcher \- they have no +parameters of any kind. There are \f(CW\*(C`ev_prepare_set\*(C'\fR and \f(CW\*(C`ev_check_set\*(C'\fR +macros, but using them is utterly, utterly, utterly and completely +pointless. +.PP +\fIExamples\fR +.IX Subsection "Examples" +.PP +There are a number of principal ways to embed other event loops or modules +into libev. Here are some ideas on how to include libadns into libev +(there is a Perl module named \f(CW\*(C`EV::ADNS\*(C'\fR that does this, which you could +use as a working example. Another Perl module named \f(CW\*(C`EV::Glib\*(C'\fR embeds a +Glib main context into libev, and finally, \f(CW\*(C`Glib::EV\*(C'\fR embeds \s-1EV\s0 into the +Glib event loop). +.PP +Method 1: Add \s-1IO\s0 watchers and a timeout watcher in a prepare handler, +and in a check watcher, destroy them and call into libadns. What follows +is pseudo-code only of course. This requires you to either use a low +priority for the check watcher or use \f(CW\*(C`ev_clear_pending\*(C'\fR explicitly, as +the callbacks for the IO/timeout watchers might not have been called yet. +.PP +.Vb 2 +\& static ev_io iow [nfd]; +\& static ev_timer tw; +\& +\& static void +\& io_cb (struct ev_loop *loop, ev_io *w, int revents) +\& { +\& } +\& +\& // create io watchers for each fd and a timer before blocking +\& static void +\& adns_prepare_cb (struct ev_loop *loop, ev_prepare *w, int revents) +\& { +\& int timeout = 3600000; +\& struct pollfd fds [nfd]; +\& // actual code will need to loop here and realloc etc. +\& adns_beforepoll (ads, fds, &nfd, &timeout, timeval_from (ev_time ())); +\& +\& /* the callback is illegal, but won\*(Aqt be called as we stop during check */ +\& ev_timer_init (&tw, 0, timeout * 1e\-3, 0.); +\& ev_timer_start (loop, &tw); +\& +\& // create one ev_io per pollfd +\& for (int i = 0; i < nfd; ++i) +\& { +\& ev_io_init (iow + i, io_cb, fds [i].fd, +\& ((fds [i].events & POLLIN ? EV_READ : 0) +\& | (fds [i].events & POLLOUT ? EV_WRITE : 0))); +\& +\& fds [i].revents = 0; +\& ev_io_start (loop, iow + i); +\& } +\& } +\& +\& // stop all watchers after blocking +\& static void +\& adns_check_cb (struct ev_loop *loop, ev_check *w, int revents) +\& { +\& ev_timer_stop (loop, &tw); +\& +\& for (int i = 0; i < nfd; ++i) +\& { +\& // set the relevant poll flags +\& // could also call adns_processreadable etc. here +\& struct pollfd *fd = fds + i; +\& int revents = ev_clear_pending (iow + i); +\& if (revents & EV_READ ) fd\->revents |= fd\->events & POLLIN; +\& if (revents & EV_WRITE) fd\->revents |= fd\->events & POLLOUT; +\& +\& // now stop the watcher +\& ev_io_stop (loop, iow + i); +\& } +\& +\& adns_afterpoll (adns, fds, nfd, timeval_from (ev_now (loop)); +\& } +.Ve +.PP +Method 2: This would be just like method 1, but you run \f(CW\*(C`adns_afterpoll\*(C'\fR +in the prepare watcher and would dispose of the check watcher. +.PP +Method 3: If the module to be embedded supports explicit event +notification (libadns does), you can also make use of the actual watcher +callbacks, and only destroy/create the watchers in the prepare watcher. +.PP +.Vb 5 +\& static void +\& timer_cb (EV_P_ ev_timer *w, int revents) +\& { +\& adns_state ads = (adns_state)w\->data; +\& update_now (EV_A); +\& +\& adns_processtimeouts (ads, &tv_now); +\& } +\& +\& static void +\& io_cb (EV_P_ ev_io *w, int revents) +\& { +\& adns_state ads = (adns_state)w\->data; +\& update_now (EV_A); +\& +\& if (revents & EV_READ ) adns_processreadable (ads, w\->fd, &tv_now); +\& if (revents & EV_WRITE) adns_processwriteable (ads, w\->fd, &tv_now); +\& } +\& +\& // do not ever call adns_afterpoll +.Ve +.PP +Method 4: Do not use a prepare or check watcher because the module you +want to embed is not flexible enough to support it. Instead, you can +override their poll function. The drawback with this solution is that the +main loop is now no longer controllable by \s-1EV.\s0 The \f(CW\*(C`Glib::EV\*(C'\fR module uses +this approach, effectively embedding \s-1EV\s0 as a client into the horrible +libglib event loop. +.PP +.Vb 4 +\& static gint +\& event_poll_func (GPollFD *fds, guint nfds, gint timeout) +\& { +\& int got_events = 0; +\& +\& for (n = 0; n < nfds; ++n) +\& // create/start io watcher that sets the relevant bits in fds[n] and increment got_events +\& +\& if (timeout >= 0) +\& // create/start timer +\& +\& // poll +\& ev_run (EV_A_ 0); +\& +\& // stop timer again +\& if (timeout >= 0) +\& ev_timer_stop (EV_A_ &to); +\& +\& // stop io watchers again \- their callbacks should have set +\& for (n = 0; n < nfds; ++n) +\& ev_io_stop (EV_A_ iow [n]); +\& +\& return got_events; +\& } +.Ve +.ie n .SS """ev_embed"" \- when one backend isn't enough..." +.el .SS "\f(CWev_embed\fP \- when one backend isn't enough..." +.IX Subsection "ev_embed - when one backend isn't enough..." +This is a rather advanced watcher type that lets you embed one event loop +into another (currently only \f(CW\*(C`ev_io\*(C'\fR events are supported in the embedded +loop, other types of watchers might be handled in a delayed or incorrect +fashion and must not be used). +.PP +There are primarily two reasons you would want that: work around bugs and +prioritise I/O. +.PP +As an example for a bug workaround, the kqueue backend might only support +sockets on some platform, so it is unusable as generic backend, but you +still want to make use of it because you have many sockets and it scales +so nicely. In this case, you would create a kqueue-based loop and embed +it into your default loop (which might use e.g. poll). Overall operation +will be a bit slower because first libev has to call \f(CW\*(C`poll\*(C'\fR and then +\&\f(CW\*(C`kevent\*(C'\fR, but at least you can use both mechanisms for what they are +best: \f(CW\*(C`kqueue\*(C'\fR for scalable sockets and \f(CW\*(C`poll\*(C'\fR if you want it to work :) +.PP +As for prioritising I/O: under rare circumstances you have the case where +some fds have to be watched and handled very quickly (with low latency), +and even priorities and idle watchers might have too much overhead. In +this case you would put all the high priority stuff in one loop and all +the rest in a second one, and embed the second one in the first. +.PP +As long as the watcher is active, the callback will be invoked every +time there might be events pending in the embedded loop. The callback +must then call \f(CW\*(C`ev_embed_sweep (mainloop, watcher)\*(C'\fR to make a single +sweep and invoke their callbacks (the callback doesn't need to invoke the +\&\f(CW\*(C`ev_embed_sweep\*(C'\fR function directly, it could also start an idle watcher +to give the embedded loop strictly lower priority for example). +.PP +You can also set the callback to \f(CW0\fR, in which case the embed watcher +will automatically execute the embedded loop sweep whenever necessary. +.PP +Fork detection will be handled transparently while the \f(CW\*(C`ev_embed\*(C'\fR watcher +is active, i.e., the embedded loop will automatically be forked when the +embedding loop forks. In other cases, the user is responsible for calling +\&\f(CW\*(C`ev_loop_fork\*(C'\fR on the embedded loop. +.PP +Unfortunately, not all backends are embeddable: only the ones returned by +\&\f(CW\*(C`ev_embeddable_backends\*(C'\fR are, which, unfortunately, does not include any +portable one. +.PP +So when you want to use this feature you will always have to be prepared +that you cannot get an embeddable loop. The recommended way to get around +this is to have a separate variables for your embeddable loop, try to +create it, and if that fails, use the normal loop for everything. +.PP +\fI\f(CI\*(C`ev_embed\*(C'\fI and fork\fR +.IX Subsection "ev_embed and fork" +.PP +While the \f(CW\*(C`ev_embed\*(C'\fR watcher is running, forks in the embedding loop will +automatically be applied to the embedded loop as well, so no special +fork handling is required in that case. When the watcher is not running, +however, it is still the task of the libev user to call \f(CW\*(C`ev_loop_fork ()\*(C'\fR +as applicable. +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)" 4 +.IX Item "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)" +.PD 0 +.IP "ev_embed_set (ev_embed *, struct ev_loop *embedded_loop)" 4 +.IX Item "ev_embed_set (ev_embed *, struct ev_loop *embedded_loop)" +.PD +Configures the watcher to embed the given loop, which must be +embeddable. If the callback is \f(CW0\fR, then \f(CW\*(C`ev_embed_sweep\*(C'\fR will be +invoked automatically, otherwise it is the responsibility of the callback +to invoke it (it will continue to be called until the sweep has been done, +if you do not want that, you need to temporarily stop the embed watcher). +.IP "ev_embed_sweep (loop, ev_embed *)" 4 +.IX Item "ev_embed_sweep (loop, ev_embed *)" +Make a single, non-blocking sweep over the embedded loop. This works +similarly to \f(CW\*(C`ev_run (embedded_loop, EVRUN_NOWAIT)\*(C'\fR, but in the most +appropriate way for embedded loops. +.IP "struct ev_loop *other [read\-only]" 4 +.IX Item "struct ev_loop *other [read-only]" +The embedded event loop. +.PP +\fIExamples\fR +.IX Subsection "Examples" +.PP +Example: Try to get an embeddable event loop and embed it into the default +event loop. If that is not possible, use the default loop. The default +loop is stored in \f(CW\*(C`loop_hi\*(C'\fR, while the embeddable loop is stored in +\&\f(CW\*(C`loop_lo\*(C'\fR (which is \f(CW\*(C`loop_hi\*(C'\fR in the case no embeddable loop can be +used). +.PP +.Vb 3 +\& struct ev_loop *loop_hi = ev_default_init (0); +\& struct ev_loop *loop_lo = 0; +\& ev_embed embed; +\& +\& // see if there is a chance of getting one that works +\& // (remember that a flags value of 0 means autodetection) +\& loop_lo = ev_embeddable_backends () & ev_recommended_backends () +\& ? ev_loop_new (ev_embeddable_backends () & ev_recommended_backends ()) +\& : 0; +\& +\& // if we got one, then embed it, otherwise default to loop_hi +\& if (loop_lo) +\& { +\& ev_embed_init (&embed, 0, loop_lo); +\& ev_embed_start (loop_hi, &embed); +\& } +\& else +\& loop_lo = loop_hi; +.Ve +.PP +Example: Check if kqueue is available but not recommended and create +a kqueue backend for use with sockets (which usually work with any +kqueue implementation). Store the kqueue/socket\-only event loop in +\&\f(CW\*(C`loop_socket\*(C'\fR. (One might optionally use \f(CW\*(C`EVFLAG_NOENV\*(C'\fR, too). +.PP +.Vb 3 +\& struct ev_loop *loop = ev_default_init (0); +\& struct ev_loop *loop_socket = 0; +\& ev_embed embed; +\& +\& if (ev_supported_backends () & ~ev_recommended_backends () & EVBACKEND_KQUEUE) +\& if ((loop_socket = ev_loop_new (EVBACKEND_KQUEUE)) +\& { +\& ev_embed_init (&embed, 0, loop_socket); +\& ev_embed_start (loop, &embed); +\& } +\& +\& if (!loop_socket) +\& loop_socket = loop; +\& +\& // now use loop_socket for all sockets, and loop for everything else +.Ve +.ie n .SS """ev_fork"" \- the audacity to resume the event loop after a fork" +.el .SS "\f(CWev_fork\fP \- the audacity to resume the event loop after a fork" +.IX Subsection "ev_fork - the audacity to resume the event loop after a fork" +Fork watchers are called when a \f(CW\*(C`fork ()\*(C'\fR was detected (usually because +whoever is a good citizen cared to tell libev about it by calling +\&\f(CW\*(C`ev_loop_fork\*(C'\fR). The invocation is done before the event loop blocks next +and before \f(CW\*(C`ev_check\*(C'\fR watchers are being called, and only in the child +after the fork. If whoever good citizen calling \f(CW\*(C`ev_default_fork\*(C'\fR cheats +and calls it in the wrong process, the fork handlers will be invoked, too, +of course. +.PP +\fIThe special problem of life after fork \- how is it possible?\fR +.IX Subsection "The special problem of life after fork - how is it possible?" +.PP +Most uses of \f(CW\*(C`fork ()\*(C'\fR consist of forking, then some simple calls to set +up/change the process environment, followed by a call to \f(CW\*(C`exec()\*(C'\fR. This +sequence should be handled by libev without any problems. +.PP +This changes when the application actually wants to do event handling +in the child, or both parent in child, in effect \*(L"continuing\*(R" after the +fork. +.PP +The default mode of operation (for libev, with application help to detect +forks) is to duplicate all the state in the child, as would be expected +when \fIeither\fR the parent \fIor\fR the child process continues. +.PP +When both processes want to continue using libev, then this is usually the +wrong result. In that case, usually one process (typically the parent) is +supposed to continue with all watchers in place as before, while the other +process typically wants to start fresh, i.e. without any active watchers. +.PP +The cleanest and most efficient way to achieve that with libev is to +simply create a new event loop, which of course will be \*(L"empty\*(R", and +use that for new watchers. This has the advantage of not touching more +memory than necessary, and thus avoiding the copy-on-write, and the +disadvantage of having to use multiple event loops (which do not support +signal watchers). +.PP +When this is not possible, or you want to use the default loop for +other reasons, then in the process that wants to start \*(L"fresh\*(R", call +\&\f(CW\*(C`ev_loop_destroy (EV_DEFAULT)\*(C'\fR followed by \f(CW\*(C`ev_default_loop (...)\*(C'\fR. +Destroying the default loop will \*(L"orphan\*(R" (not stop) all registered +watchers, so you have to be careful not to execute code that modifies +those watchers. Note also that in that case, you have to re-register any +signal watchers. +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_fork_init (ev_fork *, callback)" 4 +.IX Item "ev_fork_init (ev_fork *, callback)" +Initialises and configures the fork watcher \- it has no parameters of any +kind. There is a \f(CW\*(C`ev_fork_set\*(C'\fR macro, but using it is utterly pointless, +really. +.ie n .SS """ev_cleanup"" \- even the best things end" +.el .SS "\f(CWev_cleanup\fP \- even the best things end" +.IX Subsection "ev_cleanup - even the best things end" +Cleanup watchers are called just before the event loop is being destroyed +by a call to \f(CW\*(C`ev_loop_destroy\*(C'\fR. +.PP +While there is no guarantee that the event loop gets destroyed, cleanup +watchers provide a convenient method to install cleanup hooks for your +program, worker threads and so on \- you just to make sure to destroy the +loop when you want them to be invoked. +.PP +Cleanup watchers are invoked in the same way as any other watcher. Unlike +all other watchers, they do not keep a reference to the event loop (which +makes a lot of sense if you think about it). Like all other watchers, you +can call libev functions in the callback, except \f(CW\*(C`ev_cleanup_start\*(C'\fR. +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_cleanup_init (ev_cleanup *, callback)" 4 +.IX Item "ev_cleanup_init (ev_cleanup *, callback)" +Initialises and configures the cleanup watcher \- it has no parameters of +any kind. There is a \f(CW\*(C`ev_cleanup_set\*(C'\fR macro, but using it is utterly +pointless, I assure you. +.PP +Example: Register an atexit handler to destroy the default loop, so any +cleanup functions are called. +.PP +.Vb 5 +\& static void +\& program_exits (void) +\& { +\& ev_loop_destroy (EV_DEFAULT_UC); +\& } +\& +\& ... +\& atexit (program_exits); +.Ve +.ie n .SS """ev_async"" \- how to wake up an event loop" +.el .SS "\f(CWev_async\fP \- how to wake up an event loop" +.IX Subsection "ev_async - how to wake up an event loop" +In general, you cannot use an \f(CW\*(C`ev_loop\*(C'\fR from multiple threads or other +asynchronous sources such as signal handlers (as opposed to multiple event +loops \- those are of course safe to use in different threads). +.PP +Sometimes, however, you need to wake up an event loop you do not control, +for example because it belongs to another thread. This is what \f(CW\*(C`ev_async\*(C'\fR +watchers do: as long as the \f(CW\*(C`ev_async\*(C'\fR watcher is active, you can signal +it by calling \f(CW\*(C`ev_async_send\*(C'\fR, which is thread\- and signal safe. +.PP +This functionality is very similar to \f(CW\*(C`ev_signal\*(C'\fR watchers, as signals, +too, are asynchronous in nature, and signals, too, will be compressed +(i.e. the number of callback invocations may be less than the number of +\&\f(CW\*(C`ev_async_send\*(C'\fR calls). In fact, you could use signal watchers as a kind +of \*(L"global async watchers\*(R" by using a watcher on an otherwise unused +signal, and \f(CW\*(C`ev_feed_signal\*(C'\fR to signal this watcher from another thread, +even without knowing which loop owns the signal. +.PP +\fIQueueing\fR +.IX Subsection "Queueing" +.PP +\&\f(CW\*(C`ev_async\*(C'\fR does not support queueing of data in any way. The reason +is that the author does not know of a simple (or any) algorithm for a +multiple-writer-single-reader queue that works in all cases and doesn't +need elaborate support such as pthreads or unportable memory access +semantics. +.PP +That means that if you want to queue data, you have to provide your own +queue. But at least I can tell you how to implement locking around your +queue: +.IP "queueing from a signal handler context" 4 +.IX Item "queueing from a signal handler context" +To implement race-free queueing, you simply add to the queue in the signal +handler but you block the signal handler in the watcher callback. Here is +an example that does that for some fictitious \s-1SIGUSR1\s0 handler: +.Sp +.Vb 1 +\& static ev_async mysig; +\& +\& static void +\& sigusr1_handler (void) +\& { +\& sometype data; +\& +\& // no locking etc. +\& queue_put (data); +\& ev_async_send (EV_DEFAULT_ &mysig); +\& } +\& +\& static void +\& mysig_cb (EV_P_ ev_async *w, int revents) +\& { +\& sometype data; +\& sigset_t block, prev; +\& +\& sigemptyset (&block); +\& sigaddset (&block, SIGUSR1); +\& sigprocmask (SIG_BLOCK, &block, &prev); +\& +\& while (queue_get (&data)) +\& process (data); +\& +\& if (sigismember (&prev, SIGUSR1) +\& sigprocmask (SIG_UNBLOCK, &block, 0); +\& } +.Ve +.Sp +(Note: pthreads in theory requires you to use \f(CW\*(C`pthread_setmask\*(C'\fR +instead of \f(CW\*(C`sigprocmask\*(C'\fR when you use threads, but libev doesn't do it +either...). +.IP "queueing from a thread context" 4 +.IX Item "queueing from a thread context" +The strategy for threads is different, as you cannot (easily) block +threads but you can easily preempt them, so to queue safely you need to +employ a traditional mutex lock, such as in this pthread example: +.Sp +.Vb 2 +\& static ev_async mysig; +\& static pthread_mutex_t mymutex = PTHREAD_MUTEX_INITIALIZER; +\& +\& static void +\& otherthread (void) +\& { +\& // only need to lock the actual queueing operation +\& pthread_mutex_lock (&mymutex); +\& queue_put (data); +\& pthread_mutex_unlock (&mymutex); +\& +\& ev_async_send (EV_DEFAULT_ &mysig); +\& } +\& +\& static void +\& mysig_cb (EV_P_ ev_async *w, int revents) +\& { +\& pthread_mutex_lock (&mymutex); +\& +\& while (queue_get (&data)) +\& process (data); +\& +\& pthread_mutex_unlock (&mymutex); +\& } +.Ve +.PP +\fIWatcher-Specific Functions and Data Members\fR +.IX Subsection "Watcher-Specific Functions and Data Members" +.IP "ev_async_init (ev_async *, callback)" 4 +.IX Item "ev_async_init (ev_async *, callback)" +Initialises and configures the async watcher \- it has no parameters of any +kind. There is a \f(CW\*(C`ev_async_set\*(C'\fR macro, but using it is utterly pointless, +trust me. +.IP "ev_async_send (loop, ev_async *)" 4 +.IX Item "ev_async_send (loop, ev_async *)" +Sends/signals/activates the given \f(CW\*(C`ev_async\*(C'\fR watcher, that is, feeds +an \f(CW\*(C`EV_ASYNC\*(C'\fR event on the watcher into the event loop, and instantly +returns. +.Sp +Unlike \f(CW\*(C`ev_feed_event\*(C'\fR, this call is safe to do from other threads, +signal or similar contexts (see the discussion of \f(CW\*(C`EV_ATOMIC_T\*(C'\fR in the +embedding section below on what exactly this means). +.Sp +Note that, as with other watchers in libev, multiple events might get +compressed into a single callback invocation (another way to look at +this is that \f(CW\*(C`ev_async\*(C'\fR watchers are level-triggered: they are set on +\&\f(CW\*(C`ev_async_send\*(C'\fR, reset when the event loop detects that). +.Sp +This call incurs the overhead of at most one extra system call per event +loop iteration, if the event loop is blocked, and no syscall at all if +the event loop (or your program) is processing events. That means that +repeated calls are basically free (there is no need to avoid calls for +performance reasons) and that the overhead becomes smaller (typically +zero) under load. +.IP "bool = ev_async_pending (ev_async *)" 4 +.IX Item "bool = ev_async_pending (ev_async *)" +Returns a non-zero value when \f(CW\*(C`ev_async_send\*(C'\fR has been called on the +watcher but the event has not yet been processed (or even noted) by the +event loop. +.Sp +\&\f(CW\*(C`ev_async_send\*(C'\fR sets a flag in the watcher and wakes up the loop. When +the loop iterates next and checks for the watcher to have become active, +it will reset the flag again. \f(CW\*(C`ev_async_pending\*(C'\fR can be used to very +quickly check whether invoking the loop might be a good idea. +.Sp +Not that this does \fInot\fR check whether the watcher itself is pending, +only whether it has been requested to make this watcher pending: there +is a time window between the event loop checking and resetting the async +notification, and the callback being invoked. +.SH "OTHER FUNCTIONS" +.IX Header "OTHER FUNCTIONS" +There are some other functions of possible interest. Described. Here. Now. +.IP "ev_once (loop, int fd, int events, ev_tstamp timeout, callback)" 4 +.IX Item "ev_once (loop, int fd, int events, ev_tstamp timeout, callback)" +This function combines a simple timer and an I/O watcher, calls your +callback on whichever event happens first and automatically stops both +watchers. This is useful if you want to wait for a single event on an fd +or timeout without having to allocate/configure/start/stop/free one or +more watchers yourself. +.Sp +If \f(CW\*(C`fd\*(C'\fR is less than 0, then no I/O watcher will be started and the +\&\f(CW\*(C`events\*(C'\fR argument is being ignored. Otherwise, an \f(CW\*(C`ev_io\*(C'\fR watcher for +the given \f(CW\*(C`fd\*(C'\fR and \f(CW\*(C`events\*(C'\fR set will be created and started. +.Sp +If \f(CW\*(C`timeout\*(C'\fR is less than 0, then no timeout watcher will be +started. Otherwise an \f(CW\*(C`ev_timer\*(C'\fR watcher with after = \f(CW\*(C`timeout\*(C'\fR (and +repeat = 0) will be started. \f(CW0\fR is a valid timeout. +.Sp +The callback has the type \f(CW\*(C`void (*cb)(int revents, void *arg)\*(C'\fR and is +passed an \f(CW\*(C`revents\*(C'\fR set like normal event callbacks (a combination of +\&\f(CW\*(C`EV_ERROR\*(C'\fR, \f(CW\*(C`EV_READ\*(C'\fR, \f(CW\*(C`EV_WRITE\*(C'\fR or \f(CW\*(C`EV_TIMER\*(C'\fR) and the \f(CW\*(C`arg\*(C'\fR +value passed to \f(CW\*(C`ev_once\*(C'\fR. Note that it is possible to receive \fIboth\fR +a timeout and an io event at the same time \- you probably should give io +events precedence. +.Sp +Example: wait up to ten seconds for data to appear on \s-1STDIN_FILENO.\s0 +.Sp +.Vb 7 +\& static void stdin_ready (int revents, void *arg) +\& { +\& if (revents & EV_READ) +\& /* stdin might have data for us, joy! */; +\& else if (revents & EV_TIMER) +\& /* doh, nothing entered */; +\& } +\& +\& ev_once (STDIN_FILENO, EV_READ, 10., stdin_ready, 0); +.Ve +.IP "ev_feed_fd_event (loop, int fd, int revents)" 4 +.IX Item "ev_feed_fd_event (loop, int fd, int revents)" +Feed an event on the given fd, as if a file descriptor backend detected +the given events. +.IP "ev_feed_signal_event (loop, int signum)" 4 +.IX Item "ev_feed_signal_event (loop, int signum)" +Feed an event as if the given signal occurred. See also \f(CW\*(C`ev_feed_signal\*(C'\fR, +which is async-safe. +.SH "COMMON OR USEFUL IDIOMS (OR BOTH)" +.IX Header "COMMON OR USEFUL IDIOMS (OR BOTH)" +This section explains some common idioms that are not immediately +obvious. Note that examples are sprinkled over the whole manual, and this +section only contains stuff that wouldn't fit anywhere else. +.SS "\s-1ASSOCIATING CUSTOM DATA WITH A WATCHER\s0" +.IX Subsection "ASSOCIATING CUSTOM DATA WITH A WATCHER" +Each watcher has, by default, a \f(CW\*(C`void *data\*(C'\fR member that you can read +or modify at any time: libev will completely ignore it. This can be used +to associate arbitrary data with your watcher. If you need more data and +don't want to allocate memory separately and store a pointer to it in that +data member, you can also \*(L"subclass\*(R" the watcher type and provide your own +data: +.PP +.Vb 7 +\& struct my_io +\& { +\& ev_io io; +\& int otherfd; +\& void *somedata; +\& struct whatever *mostinteresting; +\& }; +\& +\& ... +\& struct my_io w; +\& ev_io_init (&w.io, my_cb, fd, EV_READ); +.Ve +.PP +And since your callback will be called with a pointer to the watcher, you +can cast it back to your own type: +.PP +.Vb 5 +\& static void my_cb (struct ev_loop *loop, ev_io *w_, int revents) +\& { +\& struct my_io *w = (struct my_io *)w_; +\& ... +\& } +.Ve +.PP +More interesting and less C\-conformant ways of casting your callback +function type instead have been omitted. +.SS "\s-1BUILDING YOUR OWN COMPOSITE WATCHERS\s0" +.IX Subsection "BUILDING YOUR OWN COMPOSITE WATCHERS" +Another common scenario is to use some data structure with multiple +embedded watchers, in effect creating your own watcher that combines +multiple libev event sources into one \*(L"super-watcher\*(R": +.PP +.Vb 6 +\& struct my_biggy +\& { +\& int some_data; +\& ev_timer t1; +\& ev_timer t2; +\& } +.Ve +.PP +In this case getting the pointer to \f(CW\*(C`my_biggy\*(C'\fR is a bit more +complicated: Either you store the address of your \f(CW\*(C`my_biggy\*(C'\fR struct in +the \f(CW\*(C`data\*(C'\fR member of the watcher (for woozies or \*(C+ coders), or you need +to use some pointer arithmetic using \f(CW\*(C`offsetof\*(C'\fR inside your watchers (for +real programmers): +.PP +.Vb 1 +\& #include +\& +\& static void +\& t1_cb (EV_P_ ev_timer *w, int revents) +\& { +\& struct my_biggy big = (struct my_biggy *) +\& (((char *)w) \- offsetof (struct my_biggy, t1)); +\& } +\& +\& static void +\& t2_cb (EV_P_ ev_timer *w, int revents) +\& { +\& struct my_biggy big = (struct my_biggy *) +\& (((char *)w) \- offsetof (struct my_biggy, t2)); +\& } +.Ve +.SS "\s-1AVOIDING FINISHING BEFORE RETURNING\s0" +.IX Subsection "AVOIDING FINISHING BEFORE RETURNING" +Often you have structures like this in event-based programs: +.PP +.Vb 4 +\& callback () +\& { +\& free (request); +\& } +\& +\& request = start_new_request (..., callback); +.Ve +.PP +The intent is to start some \*(L"lengthy\*(R" operation. The \f(CW\*(C`request\*(C'\fR could be +used to cancel the operation, or do other things with it. +.PP +It's not uncommon to have code paths in \f(CW\*(C`start_new_request\*(C'\fR that +immediately invoke the callback, for example, to report errors. Or you add +some caching layer that finds that it can skip the lengthy aspects of the +operation and simply invoke the callback with the result. +.PP +The problem here is that this will happen \fIbefore\fR \f(CW\*(C`start_new_request\*(C'\fR +has returned, so \f(CW\*(C`request\*(C'\fR is not set. +.PP +Even if you pass the request by some safer means to the callback, you +might want to do something to the request after starting it, such as +canceling it, which probably isn't working so well when the callback has +already been invoked. +.PP +A common way around all these issues is to make sure that +\&\f(CW\*(C`start_new_request\*(C'\fR \fIalways\fR returns before the callback is invoked. If +\&\f(CW\*(C`start_new_request\*(C'\fR immediately knows the result, it can artificially +delay invoking the callback by using a \f(CW\*(C`prepare\*(C'\fR or \f(CW\*(C`idle\*(C'\fR watcher for +example, or more sneakily, by reusing an existing (stopped) watcher and +pushing it into the pending queue: +.PP +.Vb 2 +\& ev_set_cb (watcher, callback); +\& ev_feed_event (EV_A_ watcher, 0); +.Ve +.PP +This way, \f(CW\*(C`start_new_request\*(C'\fR can safely return before the callback is +invoked, while not delaying callback invocation too much. +.SS "\s-1MODEL/NESTED EVENT LOOP INVOCATIONS AND EXIT CONDITIONS\s0" +.IX Subsection "MODEL/NESTED EVENT LOOP INVOCATIONS AND EXIT CONDITIONS" +Often (especially in \s-1GUI\s0 toolkits) there are places where you have +\&\fImodal\fR interaction, which is most easily implemented by recursively +invoking \f(CW\*(C`ev_run\*(C'\fR. +.PP +This brings the problem of exiting \- a callback might want to finish the +main \f(CW\*(C`ev_run\*(C'\fR call, but not the nested one (e.g. user clicked \*(L"Quit\*(R", but +a modal \*(L"Are you sure?\*(R" dialog is still waiting), or just the nested one +and not the main one (e.g. user clocked \*(L"Ok\*(R" in a modal dialog), or some +other combination: In these cases, a simple \f(CW\*(C`ev_break\*(C'\fR will not work. +.PP +The solution is to maintain \*(L"break this loop\*(R" variable for each \f(CW\*(C`ev_run\*(C'\fR +invocation, and use a loop around \f(CW\*(C`ev_run\*(C'\fR until the condition is +triggered, using \f(CW\*(C`EVRUN_ONCE\*(C'\fR: +.PP +.Vb 2 +\& // main loop +\& int exit_main_loop = 0; +\& +\& while (!exit_main_loop) +\& ev_run (EV_DEFAULT_ EVRUN_ONCE); +\& +\& // in a modal watcher +\& int exit_nested_loop = 0; +\& +\& while (!exit_nested_loop) +\& ev_run (EV_A_ EVRUN_ONCE); +.Ve +.PP +To exit from any of these loops, just set the corresponding exit variable: +.PP +.Vb 2 +\& // exit modal loop +\& exit_nested_loop = 1; +\& +\& // exit main program, after modal loop is finished +\& exit_main_loop = 1; +\& +\& // exit both +\& exit_main_loop = exit_nested_loop = 1; +.Ve +.SS "\s-1THREAD LOCKING EXAMPLE\s0" +.IX Subsection "THREAD LOCKING EXAMPLE" +Here is a fictitious example of how to run an event loop in a different +thread from where callbacks are being invoked and watchers are +created/added/removed. +.PP +For a real-world example, see the \f(CW\*(C`EV::Loop::Async\*(C'\fR perl module, +which uses exactly this technique (which is suited for many high-level +languages). +.PP +The example uses a pthread mutex to protect the loop data, a condition +variable to wait for callback invocations, an async watcher to notify the +event loop thread and an unspecified mechanism to wake up the main thread. +.PP +First, you need to associate some data with the event loop: +.PP +.Vb 6 +\& typedef struct { +\& mutex_t lock; /* global loop lock */ +\& ev_async async_w; +\& thread_t tid; +\& cond_t invoke_cv; +\& } userdata; +\& +\& void prepare_loop (EV_P) +\& { +\& // for simplicity, we use a static userdata struct. +\& static userdata u; +\& +\& ev_async_init (&u\->async_w, async_cb); +\& ev_async_start (EV_A_ &u\->async_w); +\& +\& pthread_mutex_init (&u\->lock, 0); +\& pthread_cond_init (&u\->invoke_cv, 0); +\& +\& // now associate this with the loop +\& ev_set_userdata (EV_A_ u); +\& ev_set_invoke_pending_cb (EV_A_ l_invoke); +\& ev_set_loop_release_cb (EV_A_ l_release, l_acquire); +\& +\& // then create the thread running ev_run +\& pthread_create (&u\->tid, 0, l_run, EV_A); +\& } +.Ve +.PP +The callback for the \f(CW\*(C`ev_async\*(C'\fR watcher does nothing: the watcher is used +solely to wake up the event loop so it takes notice of any new watchers +that might have been added: +.PP +.Vb 5 +\& static void +\& async_cb (EV_P_ ev_async *w, int revents) +\& { +\& // just used for the side effects +\& } +.Ve +.PP +The \f(CW\*(C`l_release\*(C'\fR and \f(CW\*(C`l_acquire\*(C'\fR callbacks simply unlock/lock the mutex +protecting the loop data, respectively. +.PP +.Vb 6 +\& static void +\& l_release (EV_P) +\& { +\& userdata *u = ev_userdata (EV_A); +\& pthread_mutex_unlock (&u\->lock); +\& } +\& +\& static void +\& l_acquire (EV_P) +\& { +\& userdata *u = ev_userdata (EV_A); +\& pthread_mutex_lock (&u\->lock); +\& } +.Ve +.PP +The event loop thread first acquires the mutex, and then jumps straight +into \f(CW\*(C`ev_run\*(C'\fR: +.PP +.Vb 4 +\& void * +\& l_run (void *thr_arg) +\& { +\& struct ev_loop *loop = (struct ev_loop *)thr_arg; +\& +\& l_acquire (EV_A); +\& pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0); +\& ev_run (EV_A_ 0); +\& l_release (EV_A); +\& +\& return 0; +\& } +.Ve +.PP +Instead of invoking all pending watchers, the \f(CW\*(C`l_invoke\*(C'\fR callback will +signal the main thread via some unspecified mechanism (signals? pipe +writes? \f(CW\*(C`Async::Interrupt\*(C'\fR?) and then waits until all pending watchers +have been called (in a while loop because a) spurious wakeups are possible +and b) skipping inter-thread-communication when there are no pending +watchers is very beneficial): +.PP +.Vb 4 +\& static void +\& l_invoke (EV_P) +\& { +\& userdata *u = ev_userdata (EV_A); +\& +\& while (ev_pending_count (EV_A)) +\& { +\& wake_up_other_thread_in_some_magic_or_not_so_magic_way (); +\& pthread_cond_wait (&u\->invoke_cv, &u\->lock); +\& } +\& } +.Ve +.PP +Now, whenever the main thread gets told to invoke pending watchers, it +will grab the lock, call \f(CW\*(C`ev_invoke_pending\*(C'\fR and then signal the loop +thread to continue: +.PP +.Vb 4 +\& static void +\& real_invoke_pending (EV_P) +\& { +\& userdata *u = ev_userdata (EV_A); +\& +\& pthread_mutex_lock (&u\->lock); +\& ev_invoke_pending (EV_A); +\& pthread_cond_signal (&u\->invoke_cv); +\& pthread_mutex_unlock (&u\->lock); +\& } +.Ve +.PP +Whenever you want to start/stop a watcher or do other modifications to an +event loop, you will now have to lock: +.PP +.Vb 2 +\& ev_timer timeout_watcher; +\& userdata *u = ev_userdata (EV_A); +\& +\& ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.); +\& +\& pthread_mutex_lock (&u\->lock); +\& ev_timer_start (EV_A_ &timeout_watcher); +\& ev_async_send (EV_A_ &u\->async_w); +\& pthread_mutex_unlock (&u\->lock); +.Ve +.PP +Note that sending the \f(CW\*(C`ev_async\*(C'\fR watcher is required because otherwise +an event loop currently blocking in the kernel will have no knowledge +about the newly added timer. By waking up the loop it will pick up any new +watchers in the next event loop iteration. +.SS "\s-1THREADS, COROUTINES, CONTINUATIONS, QUEUES... INSTEAD OF CALLBACKS\s0" +.IX Subsection "THREADS, COROUTINES, CONTINUATIONS, QUEUES... INSTEAD OF CALLBACKS" +While the overhead of a callback that e.g. schedules a thread is small, it +is still an overhead. If you embed libev, and your main usage is with some +kind of threads or coroutines, you might want to customise libev so that +doesn't need callbacks anymore. +.PP +Imagine you have coroutines that you can switch to using a function +\&\f(CW\*(C`switch_to (coro)\*(C'\fR, that libev runs in a coroutine called \f(CW\*(C`libev_coro\*(C'\fR +and that due to some magic, the currently active coroutine is stored in a +global called \f(CW\*(C`current_coro\*(C'\fR. Then you can build your own \*(L"wait for libev +event\*(R" primitive by changing \f(CW\*(C`EV_CB_DECLARE\*(C'\fR and \f(CW\*(C`EV_CB_INVOKE\*(C'\fR (note +the differing \f(CW\*(C`;\*(C'\fR conventions): +.PP +.Vb 2 +\& #define EV_CB_DECLARE(type) struct my_coro *cb; +\& #define EV_CB_INVOKE(watcher) switch_to ((watcher)\->cb) +.Ve +.PP +That means instead of having a C callback function, you store the +coroutine to switch to in each watcher, and instead of having libev call +your callback, you instead have it switch to that coroutine. +.PP +A coroutine might now wait for an event with a function called +\&\f(CW\*(C`wait_for_event\*(C'\fR. (the watcher needs to be started, as always, but it doesn't +matter when, or whether the watcher is active or not when this function is +called): +.PP +.Vb 6 +\& void +\& wait_for_event (ev_watcher *w) +\& { +\& ev_set_cb (w, current_coro); +\& switch_to (libev_coro); +\& } +.Ve +.PP +That basically suspends the coroutine inside \f(CW\*(C`wait_for_event\*(C'\fR and +continues the libev coroutine, which, when appropriate, switches back to +this or any other coroutine. +.PP +You can do similar tricks if you have, say, threads with an event queue \- +instead of storing a coroutine, you store the queue object and instead of +switching to a coroutine, you push the watcher onto the queue and notify +any waiters. +.PP +To embed libev, see \*(L"\s-1EMBEDDING\*(R"\s0, but in short, it's easiest to create two +files, \fImy_ev.h\fR and \fImy_ev.c\fR that include the respective libev files: +.PP +.Vb 4 +\& // my_ev.h +\& #define EV_CB_DECLARE(type) struct my_coro *cb; +\& #define EV_CB_INVOKE(watcher) switch_to ((watcher)\->cb) +\& #include "../libev/ev.h" +\& +\& // my_ev.c +\& #define EV_H "my_ev.h" +\& #include "../libev/ev.c" +.Ve +.PP +And then use \fImy_ev.h\fR when you would normally use \fIev.h\fR, and compile +\&\fImy_ev.c\fR into your project. When properly specifying include paths, you +can even use \fIev.h\fR as header file name directly. +.SH "LIBEVENT EMULATION" +.IX Header "LIBEVENT EMULATION" +Libev offers a compatibility emulation layer for libevent. It cannot +emulate the internals of libevent, so here are some usage hints: +.IP "\(bu" 4 +Only the libevent\-1.4.1\-beta \s-1API\s0 is being emulated. +.Sp +This was the newest libevent version available when libev was implemented, +and is still mostly unchanged in 2010. +.IP "\(bu" 4 +Use it by including , as usual. +.IP "\(bu" 4 +The following members are fully supported: ev_base, ev_callback, +ev_arg, ev_fd, ev_res, ev_events. +.IP "\(bu" 4 +Avoid using ev_flags and the EVLIST_*\-macros, while it is +maintained by libev, it does not work exactly the same way as in libevent (consider +it a private \s-1API\s0). +.IP "\(bu" 4 +Priorities are not currently supported. Initialising priorities +will fail and all watchers will have the same priority, even though there +is an ev_pri field. +.IP "\(bu" 4 +In libevent, the last base created gets the signals, in libev, the +base that registered the signal gets the signals. +.IP "\(bu" 4 +Other members are not supported. +.IP "\(bu" 4 +The libev emulation is \fInot\fR \s-1ABI\s0 compatible to libevent, you need +to use the libev header file and library. +.SH "\*(C+ SUPPORT" +.IX Header " SUPPORT" +.SS "C \s-1API\s0" +.IX Subsection "C API" +The normal C \s-1API\s0 should work fine when used from \*(C+: both ev.h and the +libev sources can be compiled as \*(C+. Therefore, code that uses the C \s-1API\s0 +will work fine. +.PP +Proper exception specifications might have to be added to callbacks passed +to libev: exceptions may be thrown only from watcher callbacks, all +other callbacks (allocator, syserr, loop acquire/release and periodic +reschedule callbacks) must not throw exceptions, and might need a \f(CW\*(C`throw +()\*(C'\fR specification. If you have code that needs to be compiled as both C +and \*(C+ you can use the \f(CW\*(C`EV_THROW\*(C'\fR macro for this: +.PP +.Vb 6 +\& static void +\& fatal_error (const char *msg) EV_THROW +\& { +\& perror (msg); +\& abort (); +\& } +\& +\& ... +\& ev_set_syserr_cb (fatal_error); +.Ve +.PP +The only \s-1API\s0 functions that can currently throw exceptions are \f(CW\*(C`ev_run\*(C'\fR, +\&\f(CW\*(C`ev_invoke\*(C'\fR, \f(CW\*(C`ev_invoke_pending\*(C'\fR and \f(CW\*(C`ev_loop_destroy\*(C'\fR (the latter +because it runs cleanup watchers). +.PP +Throwing exceptions in watcher callbacks is only supported if libev itself +is compiled with a \*(C+ compiler or your C and \*(C+ environments allow +throwing exceptions through C libraries (most do). +.SS "\*(C+ \s-1API\s0" +.IX Subsection " API" +Libev comes with some simplistic wrapper classes for \*(C+ that mainly allow +you to use some convenience methods to start/stop watchers and also change +the callback model to a model using method callbacks on objects. +.PP +To use it, +.PP +.Vb 1 +\& #include +.Ve +.PP +This automatically includes \fIev.h\fR and puts all of its definitions (many +of them macros) into the global namespace. All \*(C+ specific things are +put into the \f(CW\*(C`ev\*(C'\fR namespace. It should support all the same embedding +options as \fIev.h\fR, most notably \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR. +.PP +Care has been taken to keep the overhead low. The only data member the \*(C+ +classes add (compared to plain C\-style watchers) is the event loop pointer +that the watcher is associated with (or no additional members at all if +you disable \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR when embedding libev). +.PP +Currently, functions, static and non-static member functions and classes +with \f(CW\*(C`operator ()\*(C'\fR can be used as callbacks. Other types should be easy +to add as long as they only need one additional pointer for context. If +you need support for other types of functors please contact the author +(preferably after implementing it). +.PP +For all this to work, your \*(C+ compiler either has to use the same calling +conventions as your C compiler (for static member functions), or you have +to embed libev and compile libev itself as \*(C+. +.PP +Here is a list of things available in the \f(CW\*(C`ev\*(C'\fR namespace: +.ie n .IP """ev::READ"", ""ev::WRITE"" etc." 4 +.el .IP "\f(CWev::READ\fR, \f(CWev::WRITE\fR etc." 4 +.IX Item "ev::READ, ev::WRITE etc." +These are just enum values with the same values as the \f(CW\*(C`EV_READ\*(C'\fR etc. +macros from \fIev.h\fR. +.ie n .IP """ev::tstamp"", ""ev::now""" 4 +.el .IP "\f(CWev::tstamp\fR, \f(CWev::now\fR" 4 +.IX Item "ev::tstamp, ev::now" +Aliases to the same types/functions as with the \f(CW\*(C`ev_\*(C'\fR prefix. +.ie n .IP """ev::io"", ""ev::timer"", ""ev::periodic"", ""ev::idle"", ""ev::sig"" etc." 4 +.el .IP "\f(CWev::io\fR, \f(CWev::timer\fR, \f(CWev::periodic\fR, \f(CWev::idle\fR, \f(CWev::sig\fR etc." 4 +.IX Item "ev::io, ev::timer, ev::periodic, ev::idle, ev::sig etc." +For each \f(CW\*(C`ev_TYPE\*(C'\fR watcher in \fIev.h\fR there is a corresponding class of +the same name in the \f(CW\*(C`ev\*(C'\fR namespace, with the exception of \f(CW\*(C`ev_signal\*(C'\fR +which is called \f(CW\*(C`ev::sig\*(C'\fR to avoid clashes with the \f(CW\*(C`signal\*(C'\fR macro +defined by many implementations. +.Sp +All of those classes have these methods: +.RS 4 +.IP "ev::TYPE::TYPE ()" 4 +.IX Item "ev::TYPE::TYPE ()" +.PD 0 +.IP "ev::TYPE::TYPE (loop)" 4 +.IX Item "ev::TYPE::TYPE (loop)" +.IP "ev::TYPE::~TYPE" 4 +.IX Item "ev::TYPE::~TYPE" +.PD +The constructor (optionally) takes an event loop to associate the watcher +with. If it is omitted, it will use \f(CW\*(C`EV_DEFAULT\*(C'\fR. +.Sp +The constructor calls \f(CW\*(C`ev_init\*(C'\fR for you, which means you have to call the +\&\f(CW\*(C`set\*(C'\fR method before starting it. +.Sp +It will not set a callback, however: You have to call the templated \f(CW\*(C`set\*(C'\fR +method to set a callback before you can start the watcher. +.Sp +(The reason why you have to use a method is a limitation in \*(C+ which does +not allow explicit template arguments for constructors). +.Sp +The destructor automatically stops the watcher if it is active. +.IP "w\->set (object *)" 4 +.IX Item "w->set (object *)" +This method sets the callback method to call. The method has to have a +signature of \f(CW\*(C`void (*)(ev_TYPE &, int)\*(C'\fR, it receives the watcher as +first argument and the \f(CW\*(C`revents\*(C'\fR as second. The object must be given as +parameter and is stored in the \f(CW\*(C`data\*(C'\fR member of the watcher. +.Sp +This method synthesizes efficient thunking code to call your method from +the C callback that libev requires. If your compiler can inline your +callback (i.e. it is visible to it at the place of the \f(CW\*(C`set\*(C'\fR call and +your compiler is good :), then the method will be fully inlined into the +thunking function, making it as fast as a direct C callback. +.Sp +Example: simple class declaration and watcher initialisation +.Sp +.Vb 4 +\& struct myclass +\& { +\& void io_cb (ev::io &w, int revents) { } +\& } +\& +\& myclass obj; +\& ev::io iow; +\& iow.set (&obj); +.Ve +.IP "w\->set (object *)" 4 +.IX Item "w->set (object *)" +This is a variation of a method callback \- leaving out the method to call +will default the method to \f(CW\*(C`operator ()\*(C'\fR, which makes it possible to use +functor objects without having to manually specify the \f(CW\*(C`operator ()\*(C'\fR all +the time. Incidentally, you can then also leave out the template argument +list. +.Sp +The \f(CW\*(C`operator ()\*(C'\fR method prototype must be \f(CW\*(C`void operator ()(watcher &w, +int revents)\*(C'\fR. +.Sp +See the method\-\f(CW\*(C`set\*(C'\fR above for more details. +.Sp +Example: use a functor object as callback. +.Sp +.Vb 7 +\& struct myfunctor +\& { +\& void operator() (ev::io &w, int revents) +\& { +\& ... +\& } +\& } +\& +\& myfunctor f; +\& +\& ev::io w; +\& w.set (&f); +.Ve +.IP "w\->set (void *data = 0)" 4 +.IX Item "w->set (void *data = 0)" +Also sets a callback, but uses a static method or plain function as +callback. The optional \f(CW\*(C`data\*(C'\fR argument will be stored in the watcher's +\&\f(CW\*(C`data\*(C'\fR member and is free for you to use. +.Sp +The prototype of the \f(CW\*(C`function\*(C'\fR must be \f(CW\*(C`void (*)(ev::TYPE &w, int)\*(C'\fR. +.Sp +See the method\-\f(CW\*(C`set\*(C'\fR above for more details. +.Sp +Example: Use a plain function as callback. +.Sp +.Vb 2 +\& static void io_cb (ev::io &w, int revents) { } +\& iow.set (); +.Ve +.IP "w\->set (loop)" 4 +.IX Item "w->set (loop)" +Associates a different \f(CW\*(C`struct ev_loop\*(C'\fR with this watcher. You can only +do this when the watcher is inactive (and not pending either). +.IP "w\->set ([arguments])" 4 +.IX Item "w->set ([arguments])" +Basically the same as \f(CW\*(C`ev_TYPE_set\*(C'\fR (except for \f(CW\*(C`ev::embed\*(C'\fR watchers>), +with the same arguments. Either this method or a suitable start method +must be called at least once. Unlike the C counterpart, an active watcher +gets automatically stopped and restarted when reconfiguring it with this +method. +.Sp +For \f(CW\*(C`ev::embed\*(C'\fR watchers this method is called \f(CW\*(C`set_embed\*(C'\fR, to avoid +clashing with the \f(CW\*(C`set (loop)\*(C'\fR method. +.IP "w\->start ()" 4 +.IX Item "w->start ()" +Starts the watcher. Note that there is no \f(CW\*(C`loop\*(C'\fR argument, as the +constructor already stores the event loop. +.IP "w\->start ([arguments])" 4 +.IX Item "w->start ([arguments])" +Instead of calling \f(CW\*(C`set\*(C'\fR and \f(CW\*(C`start\*(C'\fR methods separately, it is often +convenient to wrap them in one call. Uses the same type of arguments as +the configure \f(CW\*(C`set\*(C'\fR method of the watcher. +.IP "w\->stop ()" 4 +.IX Item "w->stop ()" +Stops the watcher if it is active. Again, no \f(CW\*(C`loop\*(C'\fR argument. +.ie n .IP "w\->again () (""ev::timer"", ""ev::periodic"" only)" 4 +.el .IP "w\->again () (\f(CWev::timer\fR, \f(CWev::periodic\fR only)" 4 +.IX Item "w->again () (ev::timer, ev::periodic only)" +For \f(CW\*(C`ev::timer\*(C'\fR and \f(CW\*(C`ev::periodic\*(C'\fR, this invokes the corresponding +\&\f(CW\*(C`ev_TYPE_again\*(C'\fR function. +.ie n .IP "w\->sweep () (""ev::embed"" only)" 4 +.el .IP "w\->sweep () (\f(CWev::embed\fR only)" 4 +.IX Item "w->sweep () (ev::embed only)" +Invokes \f(CW\*(C`ev_embed_sweep\*(C'\fR. +.ie n .IP "w\->update () (""ev::stat"" only)" 4 +.el .IP "w\->update () (\f(CWev::stat\fR only)" 4 +.IX Item "w->update () (ev::stat only)" +Invokes \f(CW\*(C`ev_stat_stat\*(C'\fR. +.RE +.RS 4 +.RE +.PP +Example: Define a class with two I/O and idle watchers, start the I/O +watchers in the constructor. +.PP +.Vb 5 +\& class myclass +\& { +\& ev::io io ; void io_cb (ev::io &w, int revents); +\& ev::io io2 ; void io2_cb (ev::io &w, int revents); +\& ev::idle idle; void idle_cb (ev::idle &w, int revents); +\& +\& myclass (int fd) +\& { +\& io .set (this); +\& io2 .set (this); +\& idle.set (this); +\& +\& io.set (fd, ev::WRITE); // configure the watcher +\& io.start (); // start it whenever convenient +\& +\& io2.start (fd, ev::READ); // set + start in one call +\& } +\& }; +.Ve +.SH "OTHER LANGUAGE BINDINGS" +.IX Header "OTHER LANGUAGE BINDINGS" +Libev does not offer other language bindings itself, but bindings for a +number of languages exist in the form of third-party packages. If you know +any interesting language binding in addition to the ones listed here, drop +me a note. +.IP "Perl" 4 +.IX Item "Perl" +The \s-1EV\s0 module implements the full libev \s-1API\s0 and is actually used to test +libev. \s-1EV\s0 is developed together with libev. Apart from the \s-1EV\s0 core module, +there are additional modules that implement libev-compatible interfaces +to \f(CW\*(C`libadns\*(C'\fR (\f(CW\*(C`EV::ADNS\*(C'\fR, but \f(CW\*(C`AnyEvent::DNS\*(C'\fR is preferred nowadays), +\&\f(CW\*(C`Net::SNMP\*(C'\fR (\f(CW\*(C`Net::SNMP::EV\*(C'\fR) and the \f(CW\*(C`libglib\*(C'\fR event core (\f(CW\*(C`Glib::EV\*(C'\fR +and \f(CW\*(C`EV::Glib\*(C'\fR). +.Sp +It can be found and installed via \s-1CPAN,\s0 its homepage is at +. +.IP "Python" 4 +.IX Item "Python" +Python bindings can be found at . It +seems to be quite complete and well-documented. +.IP "Ruby" 4 +.IX Item "Ruby" +Tony Arcieri has written a ruby extension that offers access to a subset +of the libev \s-1API\s0 and adds file handle abstractions, asynchronous \s-1DNS\s0 and +more on top of it. It can be found via gem servers. Its homepage is at +. +.Sp +Roger Pack reports that using the link order \f(CW\*(C`\-lws2_32 \-lmsvcrt\-ruby\-190\*(C'\fR +makes rev work even on mingw. +.IP "Haskell" 4 +.IX Item "Haskell" +A haskell binding to libev is available at +. +.IP "D" 4 +.IX Item "D" +Leandro Lucarella has written a D language binding (\fIev.d\fR) for libev, to +be found at . +.IP "Ocaml" 4 +.IX Item "Ocaml" +Erkki Seppala has written Ocaml bindings for libev, to be found at +. +.IP "Lua" 4 +.IX Item "Lua" +Brian Maher has written a partial interface to libev for lua (at the +time of this writing, only \f(CW\*(C`ev_io\*(C'\fR and \f(CW\*(C`ev_timer\*(C'\fR), to be found at +. +.IP "Javascript" 4 +.IX Item "Javascript" +Node.js () uses libev as the underlying event library. +.IP "Others" 4 +.IX Item "Others" +There are others, and I stopped counting. +.SH "MACRO MAGIC" +.IX Header "MACRO MAGIC" +Libev can be compiled with a variety of options, the most fundamental +of which is \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR. This option determines whether (most) +functions and callbacks have an initial \f(CW\*(C`struct ev_loop *\*(C'\fR argument. +.PP +To make it easier to write programs that cope with either variant, the +following macros are defined: +.ie n .IP """EV_A"", ""EV_A_""" 4 +.el .IP "\f(CWEV_A\fR, \f(CWEV_A_\fR" 4 +.IX Item "EV_A, EV_A_" +This provides the loop \fIargument\fR for functions, if one is required (\*(L"ev +loop argument\*(R"). The \f(CW\*(C`EV_A\*(C'\fR form is used when this is the sole argument, +\&\f(CW\*(C`EV_A_\*(C'\fR is used when other arguments are following. Example: +.Sp +.Vb 3 +\& ev_unref (EV_A); +\& ev_timer_add (EV_A_ watcher); +\& ev_run (EV_A_ 0); +.Ve +.Sp +It assumes the variable \f(CW\*(C`loop\*(C'\fR of type \f(CW\*(C`struct ev_loop *\*(C'\fR is in scope, +which is often provided by the following macro. +.ie n .IP """EV_P"", ""EV_P_""" 4 +.el .IP "\f(CWEV_P\fR, \f(CWEV_P_\fR" 4 +.IX Item "EV_P, EV_P_" +This provides the loop \fIparameter\fR for functions, if one is required (\*(L"ev +loop parameter\*(R"). The \f(CW\*(C`EV_P\*(C'\fR form is used when this is the sole parameter, +\&\f(CW\*(C`EV_P_\*(C'\fR is used when other parameters are following. Example: +.Sp +.Vb 2 +\& // this is how ev_unref is being declared +\& static void ev_unref (EV_P); +\& +\& // this is how you can declare your typical callback +\& static void cb (EV_P_ ev_timer *w, int revents) +.Ve +.Sp +It declares a parameter \f(CW\*(C`loop\*(C'\fR of type \f(CW\*(C`struct ev_loop *\*(C'\fR, quite +suitable for use with \f(CW\*(C`EV_A\*(C'\fR. +.ie n .IP """EV_DEFAULT"", ""EV_DEFAULT_""" 4 +.el .IP "\f(CWEV_DEFAULT\fR, \f(CWEV_DEFAULT_\fR" 4 +.IX Item "EV_DEFAULT, EV_DEFAULT_" +Similar to the other two macros, this gives you the value of the default +loop, if multiple loops are supported (\*(L"ev loop default\*(R"). The default loop +will be initialised if it isn't already initialised. +.Sp +For non-multiplicity builds, these macros do nothing, so you always have +to initialise the loop somewhere. +.ie n .IP """EV_DEFAULT_UC"", ""EV_DEFAULT_UC_""" 4 +.el .IP "\f(CWEV_DEFAULT_UC\fR, \f(CWEV_DEFAULT_UC_\fR" 4 +.IX Item "EV_DEFAULT_UC, EV_DEFAULT_UC_" +Usage identical to \f(CW\*(C`EV_DEFAULT\*(C'\fR and \f(CW\*(C`EV_DEFAULT_\*(C'\fR, but requires that the +default loop has been initialised (\f(CW\*(C`UC\*(C'\fR == unchecked). Their behaviour +is undefined when the default loop has not been initialised by a previous +execution of \f(CW\*(C`EV_DEFAULT\*(C'\fR, \f(CW\*(C`EV_DEFAULT_\*(C'\fR or \f(CW\*(C`ev_default_init (...)\*(C'\fR. +.Sp +It is often prudent to use \f(CW\*(C`EV_DEFAULT\*(C'\fR when initialising the first +watcher in a function but use \f(CW\*(C`EV_DEFAULT_UC\*(C'\fR afterwards. +.PP +Example: Declare and initialise a check watcher, utilising the above +macros so it will work regardless of whether multiple loops are supported +or not. +.PP +.Vb 5 +\& static void +\& check_cb (EV_P_ ev_timer *w, int revents) +\& { +\& ev_check_stop (EV_A_ w); +\& } +\& +\& ev_check check; +\& ev_check_init (&check, check_cb); +\& ev_check_start (EV_DEFAULT_ &check); +\& ev_run (EV_DEFAULT_ 0); +.Ve +.SH "EMBEDDING" +.IX Header "EMBEDDING" +Libev can (and often is) directly embedded into host +applications. Examples of applications that embed it include the Deliantra +Game Server, the \s-1EV\s0 perl module, the \s-1GNU\s0 Virtual Private Ethernet (gvpe) +and rxvt-unicode. +.PP +The goal is to enable you to just copy the necessary files into your +source directory without having to change even a single line in them, so +you can easily upgrade by simply copying (or having a checked-out copy of +libev somewhere in your source tree). +.SS "\s-1FILESETS\s0" +.IX Subsection "FILESETS" +Depending on what features you need you need to include one or more sets of files +in your application. +.PP +\fI\s-1CORE EVENT LOOP\s0\fR +.IX Subsection "CORE EVENT LOOP" +.PP +To include only the libev core (all the \f(CW\*(C`ev_*\*(C'\fR functions), with manual +configuration (no autoconf): +.PP +.Vb 2 +\& #define EV_STANDALONE 1 +\& #include "ev.c" +.Ve +.PP +This will automatically include \fIev.h\fR, too, and should be done in a +single C source file only to provide the function implementations. To use +it, do the same for \fIev.h\fR in all files wishing to use this \s-1API \s0(best +done by writing a wrapper around \fIev.h\fR that you can include instead and +where you can put other configuration options): +.PP +.Vb 2 +\& #define EV_STANDALONE 1 +\& #include "ev.h" +.Ve +.PP +Both header files and implementation files can be compiled with a \*(C+ +compiler (at least, that's a stated goal, and breakage will be treated +as a bug). +.PP +You need the following files in your source tree, or in a directory +in your include path (e.g. in libev/ when using \-Ilibev): +.PP +.Vb 4 +\& ev.h +\& ev.c +\& ev_vars.h +\& ev_wrap.h +\& +\& ev_win32.c required on win32 platforms only +\& +\& ev_select.c only when select backend is enabled (which is enabled by default) +\& ev_poll.c only when poll backend is enabled (disabled by default) +\& ev_epoll.c only when the epoll backend is enabled (disabled by default) +\& ev_kqueue.c only when the kqueue backend is enabled (disabled by default) +\& ev_port.c only when the solaris port backend is enabled (disabled by default) +.Ve +.PP +\&\fIev.c\fR includes the backend files directly when enabled, so you only need +to compile this single file. +.PP +\fI\s-1LIBEVENT COMPATIBILITY API\s0\fR +.IX Subsection "LIBEVENT COMPATIBILITY API" +.PP +To include the libevent compatibility \s-1API,\s0 also include: +.PP +.Vb 1 +\& #include "event.c" +.Ve +.PP +in the file including \fIev.c\fR, and: +.PP +.Vb 1 +\& #include "event.h" +.Ve +.PP +in the files that want to use the libevent \s-1API.\s0 This also includes \fIev.h\fR. +.PP +You need the following additional files for this: +.PP +.Vb 2 +\& event.h +\& event.c +.Ve +.PP +\fI\s-1AUTOCONF SUPPORT\s0\fR +.IX Subsection "AUTOCONF SUPPORT" +.PP +Instead of using \f(CW\*(C`EV_STANDALONE=1\*(C'\fR and providing your configuration in +whatever way you want, you can also \f(CW\*(C`m4_include([libev.m4])\*(C'\fR in your +\&\fIconfigure.ac\fR and leave \f(CW\*(C`EV_STANDALONE\*(C'\fR undefined. \fIev.c\fR will then +include \fIconfig.h\fR and configure itself accordingly. +.PP +For this of course you need the m4 file: +.PP +.Vb 1 +\& libev.m4 +.Ve +.SS "\s-1PREPROCESSOR SYMBOLS/MACROS\s0" +.IX Subsection "PREPROCESSOR SYMBOLS/MACROS" +Libev can be configured via a variety of preprocessor symbols you have to +define before including (or compiling) any of its files. The default in +the absence of autoconf is documented for every option. +.PP +Symbols marked with \*(L"(h)\*(R" do not change the \s-1ABI,\s0 and can have different +values when compiling libev vs. including \fIev.h\fR, so it is permissible +to redefine them before including \fIev.h\fR without breaking compatibility +to a compiled library. All other symbols change the \s-1ABI,\s0 which means all +users of libev and the libev code itself must be compiled with compatible +settings. +.IP "\s-1EV_COMPAT3 \s0(h)" 4 +.IX Item "EV_COMPAT3 (h)" +Backwards compatibility is a major concern for libev. This is why this +release of libev comes with wrappers for the functions and symbols that +have been renamed between libev version 3 and 4. +.Sp +You can disable these wrappers (to test compatibility with future +versions) by defining \f(CW\*(C`EV_COMPAT3\*(C'\fR to \f(CW0\fR when compiling your +sources. This has the additional advantage that you can drop the \f(CW\*(C`struct\*(C'\fR +from \f(CW\*(C`struct ev_loop\*(C'\fR declarations, as libev will provide an \f(CW\*(C`ev_loop\*(C'\fR +typedef in that case. +.Sp +In some future version, the default for \f(CW\*(C`EV_COMPAT3\*(C'\fR will become \f(CW0\fR, +and in some even more future version the compatibility code will be +removed completely. +.IP "\s-1EV_STANDALONE \s0(h)" 4 +.IX Item "EV_STANDALONE (h)" +Must always be \f(CW1\fR if you do not use autoconf configuration, which +keeps libev from including \fIconfig.h\fR, and it also defines dummy +implementations for some libevent functions (such as logging, which is not +supported). It will also not define any of the structs usually found in +\&\fIevent.h\fR that are not directly supported by the libev core alone. +.Sp +In standalone mode, libev will still try to automatically deduce the +configuration, but has to be more conservative. +.IP "\s-1EV_USE_FLOOR\s0" 4 +.IX Item "EV_USE_FLOOR" +If defined to be \f(CW1\fR, libev will use the \f(CW\*(C`floor ()\*(C'\fR function for its +periodic reschedule calculations, otherwise libev will fall back on a +portable (slower) implementation. If you enable this, you usually have to +link against libm or something equivalent. Enabling this when the \f(CW\*(C`floor\*(C'\fR +function is not available will fail, so the safe default is to not enable +this. +.IP "\s-1EV_USE_MONOTONIC\s0" 4 +.IX Item "EV_USE_MONOTONIC" +If defined to be \f(CW1\fR, libev will try to detect the availability of the +monotonic clock option at both compile time and runtime. Otherwise no +use of the monotonic clock option will be attempted. If you enable this, +you usually have to link against librt or something similar. Enabling it +when the functionality isn't available is safe, though, although you have +to make sure you link against any libraries where the \f(CW\*(C`clock_gettime\*(C'\fR +function is hiding in (often \fI\-lrt\fR). See also \f(CW\*(C`EV_USE_CLOCK_SYSCALL\*(C'\fR. +.IP "\s-1EV_USE_REALTIME\s0" 4 +.IX Item "EV_USE_REALTIME" +If defined to be \f(CW1\fR, libev will try to detect the availability of the +real-time clock option at compile time (and assume its availability +at runtime if successful). Otherwise no use of the real-time clock +option will be attempted. This effectively replaces \f(CW\*(C`gettimeofday\*(C'\fR +by \f(CW\*(C`clock_get (CLOCK_REALTIME, ...)\*(C'\fR and will not normally affect +correctness. See the note about libraries in the description of +\&\f(CW\*(C`EV_USE_MONOTONIC\*(C'\fR, though. Defaults to the opposite value of +\&\f(CW\*(C`EV_USE_CLOCK_SYSCALL\*(C'\fR. +.IP "\s-1EV_USE_CLOCK_SYSCALL\s0" 4 +.IX Item "EV_USE_CLOCK_SYSCALL" +If defined to be \f(CW1\fR, libev will try to use a direct syscall instead +of calling the system-provided \f(CW\*(C`clock_gettime\*(C'\fR function. This option +exists because on GNU/Linux, \f(CW\*(C`clock_gettime\*(C'\fR is in \f(CW\*(C`librt\*(C'\fR, but \f(CW\*(C`librt\*(C'\fR +unconditionally pulls in \f(CW\*(C`libpthread\*(C'\fR, slowing down single-threaded +programs needlessly. Using a direct syscall is slightly slower (in +theory), because no optimised vdso implementation can be used, but avoids +the pthread dependency. Defaults to \f(CW1\fR on GNU/Linux with glibc 2.x or +higher, as it simplifies linking (no need for \f(CW\*(C`\-lrt\*(C'\fR). +.IP "\s-1EV_USE_NANOSLEEP\s0" 4 +.IX Item "EV_USE_NANOSLEEP" +If defined to be \f(CW1\fR, libev will assume that \f(CW\*(C`nanosleep ()\*(C'\fR is available +and will use it for delays. Otherwise it will use \f(CW\*(C`select ()\*(C'\fR. +.IP "\s-1EV_USE_EVENTFD\s0" 4 +.IX Item "EV_USE_EVENTFD" +If defined to be \f(CW1\fR, then libev will assume that \f(CW\*(C`eventfd ()\*(C'\fR is +available and will probe for kernel support at runtime. This will improve +\&\f(CW\*(C`ev_signal\*(C'\fR and \f(CW\*(C`ev_async\*(C'\fR performance and reduce resource consumption. +If undefined, it will be enabled if the headers indicate GNU/Linux + Glibc +2.7 or newer, otherwise disabled. +.IP "\s-1EV_USE_SELECT\s0" 4 +.IX Item "EV_USE_SELECT" +If undefined or defined to be \f(CW1\fR, libev will compile in support for the +\&\f(CW\*(C`select\*(C'\fR(2) backend. No attempt at auto-detection will be done: if no +other method takes over, select will be it. Otherwise the select backend +will not be compiled in. +.IP "\s-1EV_SELECT_USE_FD_SET\s0" 4 +.IX Item "EV_SELECT_USE_FD_SET" +If defined to \f(CW1\fR, then the select backend will use the system \f(CW\*(C`fd_set\*(C'\fR +structure. This is useful if libev doesn't compile due to a missing +\&\f(CW\*(C`NFDBITS\*(C'\fR or \f(CW\*(C`fd_mask\*(C'\fR definition or it mis-guesses the bitset layout +on exotic systems. This usually limits the range of file descriptors to +some low limit such as 1024 or might have other limitations (winsocket +only allows 64 sockets). The \f(CW\*(C`FD_SETSIZE\*(C'\fR macro, set before compilation, +configures the maximum size of the \f(CW\*(C`fd_set\*(C'\fR. +.IP "\s-1EV_SELECT_IS_WINSOCKET\s0" 4 +.IX Item "EV_SELECT_IS_WINSOCKET" +When defined to \f(CW1\fR, the select backend will assume that +select/socket/connect etc. don't understand file descriptors but +wants osf handles on win32 (this is the case when the select to +be used is the winsock select). This means that it will call +\&\f(CW\*(C`_get_osfhandle\*(C'\fR on the fd to convert it to an \s-1OS\s0 handle. Otherwise, +it is assumed that all these functions actually work on fds, even +on win32. Should not be defined on non\-win32 platforms. +.IP "\s-1EV_FD_TO_WIN32_HANDLE\s0(fd)" 4 +.IX Item "EV_FD_TO_WIN32_HANDLE(fd)" +If \f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR is enabled, then libev needs a way to map +file descriptors to socket handles. When not defining this symbol (the +default), then libev will call \f(CW\*(C`_get_osfhandle\*(C'\fR, which is usually +correct. In some cases, programs use their own file descriptor management, +in which case they can provide this function to map fds to socket handles. +.IP "\s-1EV_WIN32_HANDLE_TO_FD\s0(handle)" 4 +.IX Item "EV_WIN32_HANDLE_TO_FD(handle)" +If \f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR then libev maps handles to file descriptors +using the standard \f(CW\*(C`_open_osfhandle\*(C'\fR function. For programs implementing +their own fd to handle mapping, overwriting this function makes it easier +to do so. This can be done by defining this macro to an appropriate value. +.IP "\s-1EV_WIN32_CLOSE_FD\s0(fd)" 4 +.IX Item "EV_WIN32_CLOSE_FD(fd)" +If programs implement their own fd to handle mapping on win32, then this +macro can be used to override the \f(CW\*(C`close\*(C'\fR function, useful to unregister +file descriptors again. Note that the replacement function has to close +the underlying \s-1OS\s0 handle. +.IP "\s-1EV_USE_WSASOCKET\s0" 4 +.IX Item "EV_USE_WSASOCKET" +If defined to be \f(CW1\fR, libev will use \f(CW\*(C`WSASocket\*(C'\fR to create its internal +communication socket, which works better in some environments. Otherwise, +the normal \f(CW\*(C`socket\*(C'\fR function will be used, which works better in other +environments. +.IP "\s-1EV_USE_POLL\s0" 4 +.IX Item "EV_USE_POLL" +If defined to be \f(CW1\fR, libev will compile in support for the \f(CW\*(C`poll\*(C'\fR(2) +backend. Otherwise it will be enabled on non\-win32 platforms. It +takes precedence over select. +.IP "\s-1EV_USE_EPOLL\s0" 4 +.IX Item "EV_USE_EPOLL" +If defined to be \f(CW1\fR, libev will compile in support for the Linux +\&\f(CW\*(C`epoll\*(C'\fR(7) backend. Its availability will be detected at runtime, +otherwise another method will be used as fallback. This is the preferred +backend for GNU/Linux systems. If undefined, it will be enabled if the +headers indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled. +.IP "\s-1EV_USE_KQUEUE\s0" 4 +.IX Item "EV_USE_KQUEUE" +If defined to be \f(CW1\fR, libev will compile in support for the \s-1BSD\s0 style +\&\f(CW\*(C`kqueue\*(C'\fR(2) backend. Its actual availability will be detected at runtime, +otherwise another method will be used as fallback. This is the preferred +backend for \s-1BSD\s0 and BSD-like systems, although on most BSDs kqueue only +supports some types of fds correctly (the only platform we found that +supports ptys for example was NetBSD), so kqueue might be compiled in, but +not be used unless explicitly requested. The best way to use it is to find +out whether kqueue supports your type of fd properly and use an embedded +kqueue loop. +.IP "\s-1EV_USE_PORT\s0" 4 +.IX Item "EV_USE_PORT" +If defined to be \f(CW1\fR, libev will compile in support for the Solaris +10 port style backend. Its availability will be detected at runtime, +otherwise another method will be used as fallback. This is the preferred +backend for Solaris 10 systems. +.IP "\s-1EV_USE_DEVPOLL\s0" 4 +.IX Item "EV_USE_DEVPOLL" +Reserved for future expansion, works like the \s-1USE\s0 symbols above. +.IP "\s-1EV_USE_INOTIFY\s0" 4 +.IX Item "EV_USE_INOTIFY" +If defined to be \f(CW1\fR, libev will compile in support for the Linux inotify +interface to speed up \f(CW\*(C`ev_stat\*(C'\fR watchers. Its actual availability will +be detected at runtime. If undefined, it will be enabled if the headers +indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled. +.IP "\s-1EV_NO_SMP\s0" 4 +.IX Item "EV_NO_SMP" +If defined to be \f(CW1\fR, libev will assume that memory is always coherent +between threads, that is, threads can be used, but threads never run on +different cpus (or different cpu cores). This reduces dependencies +and makes libev faster. +.IP "\s-1EV_NO_THREADS\s0" 4 +.IX Item "EV_NO_THREADS" +If defined to be \f(CW1\fR, libev will assume that it will never be called from +different threads (that includes signal handlers), which is a stronger +assumption than \f(CW\*(C`EV_NO_SMP\*(C'\fR, above. This reduces dependencies and makes +libev faster. +.IP "\s-1EV_ATOMIC_T\s0" 4 +.IX Item "EV_ATOMIC_T" +Libev requires an integer type (suitable for storing \f(CW0\fR or \f(CW1\fR) whose +access is atomic with respect to other threads or signal contexts. No +such type is easily found in the C language, so you can provide your own +type that you know is safe for your purposes. It is used both for signal +handler \*(L"locking\*(R" as well as for signal and thread safety in \f(CW\*(C`ev_async\*(C'\fR +watchers. +.Sp +In the absence of this define, libev will use \f(CW\*(C`sig_atomic_t volatile\*(C'\fR +(from \fIsignal.h\fR), which is usually good enough on most platforms. +.IP "\s-1EV_H \s0(h)" 4 +.IX Item "EV_H (h)" +The name of the \fIev.h\fR header file used to include it. The default if +undefined is \f(CW"ev.h"\fR in \fIevent.h\fR, \fIev.c\fR and \fIev++.h\fR. This can be +used to virtually rename the \fIev.h\fR header file in case of conflicts. +.IP "\s-1EV_CONFIG_H \s0(h)" 4 +.IX Item "EV_CONFIG_H (h)" +If \f(CW\*(C`EV_STANDALONE\*(C'\fR isn't \f(CW1\fR, this variable can be used to override +\&\fIev.c\fR's idea of where to find the \fIconfig.h\fR file, similarly to +\&\f(CW\*(C`EV_H\*(C'\fR, above. +.IP "\s-1EV_EVENT_H \s0(h)" 4 +.IX Item "EV_EVENT_H (h)" +Similarly to \f(CW\*(C`EV_H\*(C'\fR, this macro can be used to override \fIevent.c\fR's idea +of how the \fIevent.h\fR header can be found, the default is \f(CW"event.h"\fR. +.IP "\s-1EV_PROTOTYPES \s0(h)" 4 +.IX Item "EV_PROTOTYPES (h)" +If defined to be \f(CW0\fR, then \fIev.h\fR will not define any function +prototypes, but still define all the structs and other symbols. This is +occasionally useful if you want to provide your own wrapper functions +around libev functions. +.IP "\s-1EV_MULTIPLICITY\s0" 4 +.IX Item "EV_MULTIPLICITY" +If undefined or defined to \f(CW1\fR, then all event-loop-specific functions +will have the \f(CW\*(C`struct ev_loop *\*(C'\fR as first argument, and you can create +additional independent event loops. Otherwise there will be no support +for multiple event loops and there is no first event loop pointer +argument. Instead, all functions act on the single default loop. +.Sp +Note that \f(CW\*(C`EV_DEFAULT\*(C'\fR and \f(CW\*(C`EV_DEFAULT_\*(C'\fR will no longer provide a +default loop when multiplicity is switched off \- you always have to +initialise the loop manually in this case. +.IP "\s-1EV_MINPRI\s0" 4 +.IX Item "EV_MINPRI" +.PD 0 +.IP "\s-1EV_MAXPRI\s0" 4 +.IX Item "EV_MAXPRI" +.PD +The range of allowed priorities. \f(CW\*(C`EV_MINPRI\*(C'\fR must be smaller or equal to +\&\f(CW\*(C`EV_MAXPRI\*(C'\fR, but otherwise there are no non-obvious limitations. You can +provide for more priorities by overriding those symbols (usually defined +to be \f(CW\*(C`\-2\*(C'\fR and \f(CW2\fR, respectively). +.Sp +When doing priority-based operations, libev usually has to linearly search +all the priorities, so having many of them (hundreds) uses a lot of space +and time, so using the defaults of five priorities (\-2 .. +2) is usually +fine. +.Sp +If your embedding application does not need any priorities, defining these +both to \f(CW0\fR will save some memory and \s-1CPU.\s0 +.IP "\s-1EV_PERIODIC_ENABLE, EV_IDLE_ENABLE, EV_EMBED_ENABLE, EV_STAT_ENABLE, EV_PREPARE_ENABLE, EV_CHECK_ENABLE, EV_FORK_ENABLE, EV_SIGNAL_ENABLE, EV_ASYNC_ENABLE, EV_CHILD_ENABLE.\s0" 4 +.IX Item "EV_PERIODIC_ENABLE, EV_IDLE_ENABLE, EV_EMBED_ENABLE, EV_STAT_ENABLE, EV_PREPARE_ENABLE, EV_CHECK_ENABLE, EV_FORK_ENABLE, EV_SIGNAL_ENABLE, EV_ASYNC_ENABLE, EV_CHILD_ENABLE." +If undefined or defined to be \f(CW1\fR (and the platform supports it), then +the respective watcher type is supported. If defined to be \f(CW0\fR, then it +is not. Disabling watcher types mainly saves code size. +.IP "\s-1EV_FEATURES\s0" 4 +.IX Item "EV_FEATURES" +If you need to shave off some kilobytes of code at the expense of some +speed (but with the full \s-1API\s0), you can define this symbol to request +certain subsets of functionality. The default is to enable all features +that can be enabled on the platform. +.Sp +A typical way to use this symbol is to define it to \f(CW0\fR (or to a bitset +with some broad features you want) and then selectively re-enable +additional parts you want, for example if you want everything minimal, +but multiple event loop support, async and child watchers and the poll +backend, use this: +.Sp +.Vb 5 +\& #define EV_FEATURES 0 +\& #define EV_MULTIPLICITY 1 +\& #define EV_USE_POLL 1 +\& #define EV_CHILD_ENABLE 1 +\& #define EV_ASYNC_ENABLE 1 +.Ve +.Sp +The actual value is a bitset, it can be a combination of the following +values (by default, all of these are enabled): +.RS 4 +.ie n .IP "1 \- faster/larger code" 4 +.el .IP "\f(CW1\fR \- faster/larger code" 4 +.IX Item "1 - faster/larger code" +Use larger code to speed up some operations. +.Sp +Currently this is used to override some inlining decisions (enlarging the +code size by roughly 30% on amd64). +.Sp +When optimising for size, use of compiler flags such as \f(CW\*(C`\-Os\*(C'\fR with +gcc is recommended, as well as \f(CW\*(C`\-DNDEBUG\*(C'\fR, as libev contains a number of +assertions. +.Sp +The default is off when \f(CW\*(C`_\|_OPTIMIZE_SIZE_\|_\*(C'\fR is defined by your compiler +(e.g. gcc with \f(CW\*(C`\-Os\*(C'\fR). +.ie n .IP "2 \- faster/larger data structures" 4 +.el .IP "\f(CW2\fR \- faster/larger data structures" 4 +.IX Item "2 - faster/larger data structures" +Replaces the small 2\-heap for timer management by a faster 4\-heap, larger +hash table sizes and so on. This will usually further increase code size +and can additionally have an effect on the size of data structures at +runtime. +.Sp +The default is off when \f(CW\*(C`_\|_OPTIMIZE_SIZE_\|_\*(C'\fR is defined by your compiler +(e.g. gcc with \f(CW\*(C`\-Os\*(C'\fR). +.ie n .IP "4 \- full \s-1API\s0 configuration" 4 +.el .IP "\f(CW4\fR \- full \s-1API\s0 configuration" 4 +.IX Item "4 - full API configuration" +This enables priorities (sets \f(CW\*(C`EV_MAXPRI\*(C'\fR=2 and \f(CW\*(C`EV_MINPRI\*(C'\fR=\-2), and +enables multiplicity (\f(CW\*(C`EV_MULTIPLICITY\*(C'\fR=1). +.ie n .IP "8 \- full \s-1API\s0" 4 +.el .IP "\f(CW8\fR \- full \s-1API\s0" 4 +.IX Item "8 - full API" +This enables a lot of the \*(L"lesser used\*(R" \s-1API\s0 functions. See \f(CW\*(C`ev.h\*(C'\fR for +details on which parts of the \s-1API\s0 are still available without this +feature, and do not complain if this subset changes over time. +.ie n .IP "16 \- enable all optional watcher types" 4 +.el .IP "\f(CW16\fR \- enable all optional watcher types" 4 +.IX Item "16 - enable all optional watcher types" +Enables all optional watcher types. If you want to selectively enable +only some watcher types other than I/O and timers (e.g. prepare, +embed, async, child...) you can enable them manually by defining +\&\f(CW\*(C`EV_watchertype_ENABLE\*(C'\fR to \f(CW1\fR instead. +.ie n .IP "32 \- enable all backends" 4 +.el .IP "\f(CW32\fR \- enable all backends" 4 +.IX Item "32 - enable all backends" +This enables all backends \- without this feature, you need to enable at +least one backend manually (\f(CW\*(C`EV_USE_SELECT\*(C'\fR is a good choice). +.ie n .IP "64 \- enable OS-specific ""helper"" APIs" 4 +.el .IP "\f(CW64\fR \- enable OS-specific ``helper'' APIs" 4 +.IX Item "64 - enable OS-specific helper APIs" +Enable inotify, eventfd, signalfd and similar OS-specific helper APIs by +default. +.RE +.RS 4 +.Sp +Compiling with \f(CW\*(C`gcc \-Os \-DEV_STANDALONE \-DEV_USE_EPOLL=1 \-DEV_FEATURES=0\*(C'\fR +reduces the compiled size of libev from 24.7Kb code/2.8Kb data to 6.5Kb +code/0.3Kb data on my GNU/Linux amd64 system, while still giving you I/O +watchers, timers and monotonic clock support. +.Sp +With an intelligent-enough linker (gcc+binutils are intelligent enough +when you use \f(CW\*(C`\-Wl,\-\-gc\-sections \-ffunction\-sections\*(C'\fR) functions unused by +your program might be left out as well \- a binary starting a timer and an +I/O watcher then might come out at only 5Kb. +.RE +.IP "\s-1EV_API_STATIC\s0" 4 +.IX Item "EV_API_STATIC" +If this symbol is defined (by default it is not), then all identifiers +will have static linkage. This means that libev will not export any +identifiers, and you cannot link against libev anymore. This can be useful +when you embed libev, only want to use libev functions in a single file, +and do not want its identifiers to be visible. +.Sp +To use this, define \f(CW\*(C`EV_API_STATIC\*(C'\fR and include \fIev.c\fR in the file that +wants to use libev. +.Sp +This option only works when libev is compiled with a C compiler, as \*(C+ +doesn't support the required declaration syntax. +.IP "\s-1EV_AVOID_STDIO\s0" 4 +.IX Item "EV_AVOID_STDIO" +If this is set to \f(CW1\fR at compiletime, then libev will avoid using stdio +functions (printf, scanf, perror etc.). This will increase the code size +somewhat, but if your program doesn't otherwise depend on stdio and your +libc allows it, this avoids linking in the stdio library which is quite +big. +.Sp +Note that error messages might become less precise when this option is +enabled. +.IP "\s-1EV_NSIG\s0" 4 +.IX Item "EV_NSIG" +The highest supported signal number, +1 (or, the number of +signals): Normally, libev tries to deduce the maximum number of signals +automatically, but sometimes this fails, in which case it can be +specified. Also, using a lower number than detected (\f(CW32\fR should be +good for about any system in existence) can save some memory, as libev +statically allocates some 12\-24 bytes per signal number. +.IP "\s-1EV_PID_HASHSIZE\s0" 4 +.IX Item "EV_PID_HASHSIZE" +\&\f(CW\*(C`ev_child\*(C'\fR watchers use a small hash table to distribute workload by +pid. The default size is \f(CW16\fR (or \f(CW1\fR with \f(CW\*(C`EV_FEATURES\*(C'\fR disabled), +usually more than enough. If you need to manage thousands of children you +might want to increase this value (\fImust\fR be a power of two). +.IP "\s-1EV_INOTIFY_HASHSIZE\s0" 4 +.IX Item "EV_INOTIFY_HASHSIZE" +\&\f(CW\*(C`ev_stat\*(C'\fR watchers use a small hash table to distribute workload by +inotify watch id. The default size is \f(CW16\fR (or \f(CW1\fR with \f(CW\*(C`EV_FEATURES\*(C'\fR +disabled), usually more than enough. If you need to manage thousands of +\&\f(CW\*(C`ev_stat\*(C'\fR watchers you might want to increase this value (\fImust\fR be a +power of two). +.IP "\s-1EV_USE_4HEAP\s0" 4 +.IX Item "EV_USE_4HEAP" +Heaps are not very cache-efficient. To improve the cache-efficiency of the +timer and periodics heaps, libev uses a 4\-heap when this symbol is defined +to \f(CW1\fR. The 4\-heap uses more complicated (longer) code but has noticeably +faster performance with many (thousands) of watchers. +.Sp +The default is \f(CW1\fR, unless \f(CW\*(C`EV_FEATURES\*(C'\fR overrides it, in which case it +will be \f(CW0\fR. +.IP "\s-1EV_HEAP_CACHE_AT\s0" 4 +.IX Item "EV_HEAP_CACHE_AT" +Heaps are not very cache-efficient. To improve the cache-efficiency of the +timer and periodics heaps, libev can cache the timestamp (\fIat\fR) within +the heap structure (selected by defining \f(CW\*(C`EV_HEAP_CACHE_AT\*(C'\fR to \f(CW1\fR), +which uses 8\-12 bytes more per watcher and a few hundred bytes more code, +but avoids random read accesses on heap changes. This improves performance +noticeably with many (hundreds) of watchers. +.Sp +The default is \f(CW1\fR, unless \f(CW\*(C`EV_FEATURES\*(C'\fR overrides it, in which case it +will be \f(CW0\fR. +.IP "\s-1EV_VERIFY\s0" 4 +.IX Item "EV_VERIFY" +Controls how much internal verification (see \f(CW\*(C`ev_verify ()\*(C'\fR) will +be done: If set to \f(CW0\fR, no internal verification code will be compiled +in. If set to \f(CW1\fR, then verification code will be compiled in, but not +called. If set to \f(CW2\fR, then the internal verification code will be +called once per loop, which can slow down libev. If set to \f(CW3\fR, then the +verification code will be called very frequently, which will slow down +libev considerably. +.Sp +The default is \f(CW1\fR, unless \f(CW\*(C`EV_FEATURES\*(C'\fR overrides it, in which case it +will be \f(CW0\fR. +.IP "\s-1EV_COMMON\s0" 4 +.IX Item "EV_COMMON" +By default, all watchers have a \f(CW\*(C`void *data\*(C'\fR member. By redefining +this macro to something else you can include more and other types of +members. You have to define it each time you include one of the files, +though, and it must be identical each time. +.Sp +For example, the perl \s-1EV\s0 module uses something like this: +.Sp +.Vb 3 +\& #define EV_COMMON \e +\& SV *self; /* contains this struct */ \e +\& SV *cb_sv, *fh /* note no trailing ";" */ +.Ve +.IP "\s-1EV_CB_DECLARE \s0(type)" 4 +.IX Item "EV_CB_DECLARE (type)" +.PD 0 +.IP "\s-1EV_CB_INVOKE \s0(watcher, revents)" 4 +.IX Item "EV_CB_INVOKE (watcher, revents)" +.IP "ev_set_cb (ev, cb)" 4 +.IX Item "ev_set_cb (ev, cb)" +.PD +Can be used to change the callback member declaration in each watcher, +and the way callbacks are invoked and set. Must expand to a struct member +definition and a statement, respectively. See the \fIev.h\fR header file for +their default definitions. One possible use for overriding these is to +avoid the \f(CW\*(C`struct ev_loop *\*(C'\fR as first argument in all cases, or to use +method calls instead of plain function calls in \*(C+. +.SS "\s-1EXPORTED API SYMBOLS\s0" +.IX Subsection "EXPORTED API SYMBOLS" +If you need to re-export the \s-1API \s0(e.g. via a \s-1DLL\s0) and you need a list of +exported symbols, you can use the provided \fISymbol.*\fR files which list +all public symbols, one per line: +.PP +.Vb 2 +\& Symbols.ev for libev proper +\& Symbols.event for the libevent emulation +.Ve +.PP +This can also be used to rename all public symbols to avoid clashes with +multiple versions of libev linked together (which is obviously bad in +itself, but sometimes it is inconvenient to avoid this). +.PP +A sed command like this will create wrapper \f(CW\*(C`#define\*(C'\fR's that you need to +include before including \fIev.h\fR: +.PP +.Vb 1 +\& wrap.h +.Ve +.PP +This would create a file \fIwrap.h\fR which essentially looks like this: +.PP +.Vb 4 +\& #define ev_backend myprefix_ev_backend +\& #define ev_check_start myprefix_ev_check_start +\& #define ev_check_stop myprefix_ev_check_stop +\& ... +.Ve +.SS "\s-1EXAMPLES\s0" +.IX Subsection "EXAMPLES" +For a real-world example of a program the includes libev +verbatim, you can have a look at the \s-1EV\s0 perl module +(). It has the libev files in +the \fIlibev/\fR subdirectory and includes them in the \fI\s-1EV/EVAPI\s0.h\fR (public +interface) and \fI\s-1EV\s0.xs\fR (implementation) files. Only the \fI\s-1EV\s0.xs\fR file +will be compiled. It is pretty complex because it provides its own header +file. +.PP +The usage in rxvt-unicode is simpler. It has a \fIev_cpp.h\fR header file +that everybody includes and which overrides some configure choices: +.PP +.Vb 8 +\& #define EV_FEATURES 8 +\& #define EV_USE_SELECT 1 +\& #define EV_PREPARE_ENABLE 1 +\& #define EV_IDLE_ENABLE 1 +\& #define EV_SIGNAL_ENABLE 1 +\& #define EV_CHILD_ENABLE 1 +\& #define EV_USE_STDEXCEPT 0 +\& #define EV_CONFIG_H +\& +\& #include "ev++.h" +.Ve +.PP +And a \fIev_cpp.C\fR implementation file that contains libev proper and is compiled: +.PP +.Vb 2 +\& #include "ev_cpp.h" +\& #include "ev.c" +.Ve +.SH "INTERACTION WITH OTHER PROGRAMS, LIBRARIES OR THE ENVIRONMENT" +.IX Header "INTERACTION WITH OTHER PROGRAMS, LIBRARIES OR THE ENVIRONMENT" +.SS "\s-1THREADS AND COROUTINES\s0" +.IX Subsection "THREADS AND COROUTINES" +\fI\s-1THREADS\s0\fR +.IX Subsection "THREADS" +.PP +All libev functions are reentrant and thread-safe unless explicitly +documented otherwise, but libev implements no locking itself. This means +that you can use as many loops as you want in parallel, as long as there +are no concurrent calls into any libev function with the same loop +parameter (\f(CW\*(C`ev_default_*\*(C'\fR calls have an implicit default loop parameter, +of course): libev guarantees that different event loops share no data +structures that need any locking. +.PP +Or to put it differently: calls with different loop parameters can be done +concurrently from multiple threads, calls with the same loop parameter +must be done serially (but can be done from different threads, as long as +only one thread ever is inside a call at any point in time, e.g. by using +a mutex per loop). +.PP +Specifically to support threads (and signal handlers), libev implements +so-called \f(CW\*(C`ev_async\*(C'\fR watchers, which allow some limited form of +concurrency on the same event loop, namely waking it up \*(L"from the +outside\*(R". +.PP +If you want to know which design (one loop, locking, or multiple loops +without or something else still) is best for your problem, then I cannot +help you, but here is some generic advice: +.IP "\(bu" 4 +most applications have a main thread: use the default libev loop +in that thread, or create a separate thread running only the default loop. +.Sp +This helps integrating other libraries or software modules that use libev +themselves and don't care/know about threading. +.IP "\(bu" 4 +one loop per thread is usually a good model. +.Sp +Doing this is almost never wrong, sometimes a better-performance model +exists, but it is always a good start. +.IP "\(bu" 4 +other models exist, such as the leader/follower pattern, where one +loop is handed through multiple threads in a kind of round-robin fashion. +.Sp +Choosing a model is hard \- look around, learn, know that usually you can do +better than you currently do :\-) +.IP "\(bu" 4 +often you need to talk to some other thread which blocks in the +event loop. +.Sp +\&\f(CW\*(C`ev_async\*(C'\fR watchers can be used to wake them up from other threads safely +(or from signal contexts...). +.Sp +An example use would be to communicate signals or other events that only +work in the default loop by registering the signal watcher with the +default loop and triggering an \f(CW\*(C`ev_async\*(C'\fR watcher from the default loop +watcher callback into the event loop interested in the signal. +.PP +See also \*(L"\s-1THREAD LOCKING EXAMPLE\*(R"\s0. +.PP +\fI\s-1COROUTINES\s0\fR +.IX Subsection "COROUTINES" +.PP +Libev is very accommodating to coroutines (\*(L"cooperative threads\*(R"): +libev fully supports nesting calls to its functions from different +coroutines (e.g. you can call \f(CW\*(C`ev_run\*(C'\fR on the same loop from two +different coroutines, and switch freely between both coroutines running +the loop, as long as you don't confuse yourself). The only exception is +that you must not do this from \f(CW\*(C`ev_periodic\*(C'\fR reschedule callbacks. +.PP +Care has been taken to ensure that libev does not keep local state inside +\&\f(CW\*(C`ev_run\*(C'\fR, and other calls do not usually allow for coroutine switches as +they do not call any callbacks. +.SS "\s-1COMPILER WARNINGS\s0" +.IX Subsection "COMPILER WARNINGS" +Depending on your compiler and compiler settings, you might get no or a +lot of warnings when compiling libev code. Some people are apparently +scared by this. +.PP +However, these are unavoidable for many reasons. For one, each compiler +has different warnings, and each user has different tastes regarding +warning options. \*(L"Warn-free\*(R" code therefore cannot be a goal except when +targeting a specific compiler and compiler-version. +.PP +Another reason is that some compiler warnings require elaborate +workarounds, or other changes to the code that make it less clear and less +maintainable. +.PP +And of course, some compiler warnings are just plain stupid, or simply +wrong (because they don't actually warn about the condition their message +seems to warn about). For example, certain older gcc versions had some +warnings that resulted in an extreme number of false positives. These have +been fixed, but some people still insist on making code warn-free with +such buggy versions. +.PP +While libev is written to generate as few warnings as possible, +\&\*(L"warn-free\*(R" code is not a goal, and it is recommended not to build libev +with any compiler warnings enabled unless you are prepared to cope with +them (e.g. by ignoring them). Remember that warnings are just that: +warnings, not errors, or proof of bugs. +.SS "\s-1VALGRIND\s0" +.IX Subsection "VALGRIND" +Valgrind has a special section here because it is a popular tool that is +highly useful. Unfortunately, valgrind reports are very hard to interpret. +.PP +If you think you found a bug (memory leak, uninitialised data access etc.) +in libev, then check twice: If valgrind reports something like: +.PP +.Vb 3 +\& ==2274== definitely lost: 0 bytes in 0 blocks. +\& ==2274== possibly lost: 0 bytes in 0 blocks. +\& ==2274== still reachable: 256 bytes in 1 blocks. +.Ve +.PP +Then there is no memory leak, just as memory accounted to global variables +is not a memleak \- the memory is still being referenced, and didn't leak. +.PP +Similarly, under some circumstances, valgrind might report kernel bugs +as if it were a bug in libev (e.g. in realloc or in the poll backend, +although an acceptable workaround has been found here), or it might be +confused. +.PP +Keep in mind that valgrind is a very good tool, but only a tool. Don't +make it into some kind of religion. +.PP +If you are unsure about something, feel free to contact the mailing list +with the full valgrind report and an explanation on why you think this +is a bug in libev (best check the archives, too :). However, don't be +annoyed when you get a brisk \*(L"this is no bug\*(R" answer and take the chance +of learning how to interpret valgrind properly. +.PP +If you need, for some reason, empty reports from valgrind for your project +I suggest using suppression lists. +.SH "PORTABILITY NOTES" +.IX Header "PORTABILITY NOTES" +.SS "\s-1GNU/LINUX 32 BIT LIMITATIONS\s0" +.IX Subsection "GNU/LINUX 32 BIT LIMITATIONS" +GNU/Linux is the only common platform that supports 64 bit file/large file +interfaces but \fIdisables\fR them by default. +.PP +That means that libev compiled in the default environment doesn't support +files larger than 2GiB or so, which mainly affects \f(CW\*(C`ev_stat\*(C'\fR watchers. +.PP +Unfortunately, many programs try to work around this GNU/Linux issue +by enabling the large file \s-1API,\s0 which makes them incompatible with the +standard libev compiled for their system. +.PP +Likewise, libev cannot enable the large file \s-1API\s0 itself as this would +suddenly make it incompatible to the default compile time environment, +i.e. all programs not using special compile switches. +.SS "\s-1OS/X AND DARWIN BUGS\s0" +.IX Subsection "OS/X AND DARWIN BUGS" +The whole thing is a bug if you ask me \- basically any system interface +you touch is broken, whether it is locales, poll, kqueue or even the +OpenGL drivers. +.PP +\fI\f(CI\*(C`kqueue\*(C'\fI is buggy\fR +.IX Subsection "kqueue is buggy" +.PP +The kqueue syscall is broken in all known versions \- most versions support +only sockets, many support pipes. +.PP +Libev tries to work around this by not using \f(CW\*(C`kqueue\*(C'\fR by default on this +rotten platform, but of course you can still ask for it when creating a +loop \- embedding a socket-only kqueue loop into a select-based one is +probably going to work well. +.PP +\fI\f(CI\*(C`poll\*(C'\fI is buggy\fR +.IX Subsection "poll is buggy" +.PP +Instead of fixing \f(CW\*(C`kqueue\*(C'\fR, Apple replaced their (working) \f(CW\*(C`poll\*(C'\fR +implementation by something calling \f(CW\*(C`kqueue\*(C'\fR internally around the 10.5.6 +release, so now \f(CW\*(C`kqueue\*(C'\fR \fIand\fR \f(CW\*(C`poll\*(C'\fR are broken. +.PP +Libev tries to work around this by not using \f(CW\*(C`poll\*(C'\fR by default on +this rotten platform, but of course you can still ask for it when creating +a loop. +.PP +\fI\f(CI\*(C`select\*(C'\fI is buggy\fR +.IX Subsection "select is buggy" +.PP +All that's left is \f(CW\*(C`select\*(C'\fR, and of course Apple found a way to fuck this +one up as well: On \s-1OS/X, \s0\f(CW\*(C`select\*(C'\fR actively limits the number of file +descriptors you can pass in to 1024 \- your program suddenly crashes when +you use more. +.PP +There is an undocumented \*(L"workaround\*(R" for this \- defining +\&\f(CW\*(C`_DARWIN_UNLIMITED_SELECT\*(C'\fR, which libev tries to use, so select \fIshould\fR +work on \s-1OS/X.\s0 +.SS "\s-1SOLARIS PROBLEMS AND WORKAROUNDS\s0" +.IX Subsection "SOLARIS PROBLEMS AND WORKAROUNDS" +\fI\f(CI\*(C`errno\*(C'\fI reentrancy\fR +.IX Subsection "errno reentrancy" +.PP +The default compile environment on Solaris is unfortunately so +thread-unsafe that you can't even use components/libraries compiled +without \f(CW\*(C`\-D_REENTRANT\*(C'\fR in a threaded program, which, of course, isn't +defined by default. A valid, if stupid, implementation choice. +.PP +If you want to use libev in threaded environments you have to make sure +it's compiled with \f(CW\*(C`_REENTRANT\*(C'\fR defined. +.PP +\fIEvent port backend\fR +.IX Subsection "Event port backend" +.PP +The scalable event interface for Solaris is called \*(L"event +ports\*(R". Unfortunately, this mechanism is very buggy in all major +releases. If you run into high \s-1CPU\s0 usage, your program freezes or you get +a large number of spurious wakeups, make sure you have all the relevant +and latest kernel patches applied. No, I don't know which ones, but there +are multiple ones to apply, and afterwards, event ports actually work +great. +.PP +If you can't get it to work, you can try running the program by setting +the environment variable \f(CW\*(C`LIBEV_FLAGS=3\*(C'\fR to only allow \f(CW\*(C`poll\*(C'\fR and +\&\f(CW\*(C`select\*(C'\fR backends. +.SS "\s-1AIX POLL BUG\s0" +.IX Subsection "AIX POLL BUG" +\&\s-1AIX\s0 unfortunately has a broken \f(CW\*(C`poll.h\*(C'\fR header. Libev works around +this by trying to avoid the poll backend altogether (i.e. it's not even +compiled in), which normally isn't a big problem as \f(CW\*(C`select\*(C'\fR works fine +with large bitsets on \s-1AIX,\s0 and \s-1AIX\s0 is dead anyway. +.SS "\s-1WIN32 PLATFORM LIMITATIONS AND WORKAROUNDS\s0" +.IX Subsection "WIN32 PLATFORM LIMITATIONS AND WORKAROUNDS" +\fIGeneral issues\fR +.IX Subsection "General issues" +.PP +Win32 doesn't support any of the standards (e.g. \s-1POSIX\s0) that libev +requires, and its I/O model is fundamentally incompatible with the \s-1POSIX\s0 +model. Libev still offers limited functionality on this platform in +the form of the \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR backend, and only supports socket +descriptors. This only applies when using Win32 natively, not when using +e.g. cygwin. Actually, it only applies to the microsofts own compilers, +as every compiler comes with a slightly differently broken/incompatible +environment. +.PP +Lifting these limitations would basically require the full +re-implementation of the I/O system. If you are into this kind of thing, +then note that glib does exactly that for you in a very portable way (note +also that glib is the slowest event library known to man). +.PP +There is no supported compilation method available on windows except +embedding it into other applications. +.PP +Sensible signal handling is officially unsupported by Microsoft \- libev +tries its best, but under most conditions, signals will simply not work. +.PP +Not a libev limitation but worth mentioning: windows apparently doesn't +accept large writes: instead of resulting in a partial write, windows will +either accept everything or return \f(CW\*(C`ENOBUFS\*(C'\fR if the buffer is too large, +so make sure you only write small amounts into your sockets (less than a +megabyte seems safe, but this apparently depends on the amount of memory +available). +.PP +Due to the many, low, and arbitrary limits on the win32 platform and +the abysmal performance of winsockets, using a large number of sockets +is not recommended (and not reasonable). If your program needs to use +more than a hundred or so sockets, then likely it needs to use a totally +different implementation for windows, as libev offers the \s-1POSIX\s0 readiness +notification model, which cannot be implemented efficiently on windows +(due to Microsoft monopoly games). +.PP +A typical way to use libev under windows is to embed it (see the embedding +section for details) and use the following \fIevwrap.h\fR header file instead +of \fIev.h\fR: +.PP +.Vb 2 +\& #define EV_STANDALONE /* keeps ev from requiring config.h */ +\& #define EV_SELECT_IS_WINSOCKET 1 /* configure libev for windows select */ +\& +\& #include "ev.h" +.Ve +.PP +And compile the following \fIevwrap.c\fR file into your project (make sure +you do \fInot\fR compile the \fIev.c\fR or any other embedded source files!): +.PP +.Vb 2 +\& #include "evwrap.h" +\& #include "ev.c" +.Ve +.PP +\fIThe winsocket \f(CI\*(C`select\*(C'\fI function\fR +.IX Subsection "The winsocket select function" +.PP +The winsocket \f(CW\*(C`select\*(C'\fR function doesn't follow \s-1POSIX\s0 in that it +requires socket \fIhandles\fR and not socket \fIfile descriptors\fR (it is +also extremely buggy). This makes select very inefficient, and also +requires a mapping from file descriptors to socket handles (the Microsoft +C runtime provides the function \f(CW\*(C`_open_osfhandle\*(C'\fR for this). See the +discussion of the \f(CW\*(C`EV_SELECT_USE_FD_SET\*(C'\fR, \f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR and +\&\f(CW\*(C`EV_FD_TO_WIN32_HANDLE\*(C'\fR preprocessor symbols for more info. +.PP +The configuration for a \*(L"naked\*(R" win32 using the Microsoft runtime +libraries and raw winsocket select is: +.PP +.Vb 2 +\& #define EV_USE_SELECT 1 +\& #define EV_SELECT_IS_WINSOCKET 1 /* forces EV_SELECT_USE_FD_SET, too */ +.Ve +.PP +Note that winsockets handling of fd sets is O(n), so you can easily get a +complexity in the O(nX) range when using win32. +.PP +\fILimited number of file descriptors\fR +.IX Subsection "Limited number of file descriptors" +.PP +Windows has numerous arbitrary (and low) limits on things. +.PP +Early versions of winsocket's select only supported waiting for a maximum +of \f(CW64\fR handles (probably owning to the fact that all windows kernels +can only wait for \f(CW64\fR things at the same time internally; Microsoft +recommends spawning a chain of threads and wait for 63 handles and the +previous thread in each. Sounds great!). +.PP +Newer versions support more handles, but you need to define \f(CW\*(C`FD_SETSIZE\*(C'\fR +to some high number (e.g. \f(CW2048\fR) before compiling the winsocket select +call (which might be in libev or elsewhere, for example, perl and many +other interpreters do their own select emulation on windows). +.PP +Another limit is the number of file descriptors in the Microsoft runtime +libraries, which by default is \f(CW64\fR (there must be a hidden \fI64\fR +fetish or something like this inside Microsoft). You can increase this +by calling \f(CW\*(C`_setmaxstdio\*(C'\fR, which can increase this limit to \f(CW2048\fR +(another arbitrary limit), but is broken in many versions of the Microsoft +runtime libraries. This might get you to about \f(CW512\fR or \f(CW2048\fR sockets +(depending on windows version and/or the phase of the moon). To get more, +you need to wrap all I/O functions and provide your own fd management, but +the cost of calling select (O(nX)) will likely make this unworkable. +.SS "\s-1PORTABILITY REQUIREMENTS\s0" +.IX Subsection "PORTABILITY REQUIREMENTS" +In addition to a working ISO-C implementation and of course the +backend-specific APIs, libev relies on a few additional extensions: +.ie n .IP """void (*)(ev_watcher_type *, int revents)"" must have compatible calling conventions regardless of ""ev_watcher_type *""." 4 +.el .IP "\f(CWvoid (*)(ev_watcher_type *, int revents)\fR must have compatible calling conventions regardless of \f(CWev_watcher_type *\fR." 4 +.IX Item "void (*)(ev_watcher_type *, int revents) must have compatible calling conventions regardless of ev_watcher_type *." +Libev assumes not only that all watcher pointers have the same internal +structure (guaranteed by \s-1POSIX\s0 but not by \s-1ISO C\s0 for example), but it also +assumes that the same (machine) code can be used to call any watcher +callback: The watcher callbacks have different type signatures, but libev +calls them using an \f(CW\*(C`ev_watcher *\*(C'\fR internally. +.IP "pointer accesses must be thread-atomic" 4 +.IX Item "pointer accesses must be thread-atomic" +Accessing a pointer value must be atomic, it must both be readable and +writable in one piece \- this is the case on all current architectures. +.ie n .IP """sig_atomic_t volatile"" must be thread-atomic as well" 4 +.el .IP "\f(CWsig_atomic_t volatile\fR must be thread-atomic as well" 4 +.IX Item "sig_atomic_t volatile must be thread-atomic as well" +The type \f(CW\*(C`sig_atomic_t volatile\*(C'\fR (or whatever is defined as +\&\f(CW\*(C`EV_ATOMIC_T\*(C'\fR) must be atomic with respect to accesses from different +threads. This is not part of the specification for \f(CW\*(C`sig_atomic_t\*(C'\fR, but is +believed to be sufficiently portable. +.ie n .IP """sigprocmask"" must work in a threaded environment" 4 +.el .IP "\f(CWsigprocmask\fR must work in a threaded environment" 4 +.IX Item "sigprocmask must work in a threaded environment" +Libev uses \f(CW\*(C`sigprocmask\*(C'\fR to temporarily block signals. This is not +allowed in a threaded program (\f(CW\*(C`pthread_sigmask\*(C'\fR has to be used). Typical +pthread implementations will either allow \f(CW\*(C`sigprocmask\*(C'\fR in the \*(L"main +thread\*(R" or will block signals process-wide, both behaviours would +be compatible with libev. Interaction between \f(CW\*(C`sigprocmask\*(C'\fR and +\&\f(CW\*(C`pthread_sigmask\*(C'\fR could complicate things, however. +.Sp +The most portable way to handle signals is to block signals in all threads +except the initial one, and run the signal handling loop in the initial +thread as well. +.ie n .IP """long"" must be large enough for common memory allocation sizes" 4 +.el .IP "\f(CWlong\fR must be large enough for common memory allocation sizes" 4 +.IX Item "long must be large enough for common memory allocation sizes" +To improve portability and simplify its \s-1API,\s0 libev uses \f(CW\*(C`long\*(C'\fR internally +instead of \f(CW\*(C`size_t\*(C'\fR when allocating its data structures. On non-POSIX +systems (Microsoft...) this might be unexpectedly low, but is still at +least 31 bits everywhere, which is enough for hundreds of millions of +watchers. +.ie n .IP """double"" must hold a time value in seconds with enough accuracy" 4 +.el .IP "\f(CWdouble\fR must hold a time value in seconds with enough accuracy" 4 +.IX Item "double must hold a time value in seconds with enough accuracy" +The type \f(CW\*(C`double\*(C'\fR is used to represent timestamps. It is required to +have at least 51 bits of mantissa (and 9 bits of exponent), which is +good enough for at least into the year 4000 with millisecond accuracy +(the design goal for libev). This requirement is overfulfilled by +implementations using \s-1IEEE 754,\s0 which is basically all existing ones. +.Sp +With \s-1IEEE 754\s0 doubles, you get microsecond accuracy until at least the +year 2255 (and millisecond accuracy till the year 287396 \- by then, libev +is either obsolete or somebody patched it to use \f(CW\*(C`long double\*(C'\fR or +something like that, just kidding). +.PP +If you know of other additional requirements drop me a note. +.SH "ALGORITHMIC COMPLEXITIES" +.IX Header "ALGORITHMIC COMPLEXITIES" +In this section the complexities of (many of) the algorithms used inside +libev will be documented. For complexity discussions about backends see +the documentation for \f(CW\*(C`ev_default_init\*(C'\fR. +.PP +All of the following are about amortised time: If an array needs to be +extended, libev needs to realloc and move the whole array, but this +happens asymptotically rarer with higher number of elements, so O(1) might +mean that libev does a lengthy realloc operation in rare cases, but on +average it is much faster and asymptotically approaches constant time. +.IP "Starting and stopping timer/periodic watchers: O(log skipped_other_timers)" 4 +.IX Item "Starting and stopping timer/periodic watchers: O(log skipped_other_timers)" +This means that, when you have a watcher that triggers in one hour and +there are 100 watchers that would trigger before that, then inserting will +have to skip roughly seven (\f(CW\*(C`ld 100\*(C'\fR) of these watchers. +.IP "Changing timer/periodic watchers (by autorepeat or calling again): O(log skipped_other_timers)" 4 +.IX Item "Changing timer/periodic watchers (by autorepeat or calling again): O(log skipped_other_timers)" +That means that changing a timer costs less than removing/adding them, +as only the relative motion in the event queue has to be paid for. +.IP "Starting io/check/prepare/idle/signal/child/fork/async watchers: O(1)" 4 +.IX Item "Starting io/check/prepare/idle/signal/child/fork/async watchers: O(1)" +These just add the watcher into an array or at the head of a list. +.IP "Stopping check/prepare/idle/fork/async watchers: O(1)" 4 +.IX Item "Stopping check/prepare/idle/fork/async watchers: O(1)" +.PD 0 +.IP "Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % \s-1EV_PID_HASHSIZE\s0))" 4 +.IX Item "Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % EV_PID_HASHSIZE))" +.PD +These watchers are stored in lists, so they need to be walked to find the +correct watcher to remove. The lists are usually short (you don't usually +have many watchers waiting for the same fd or signal: one is typical, two +is rare). +.IP "Finding the next timer in each loop iteration: O(1)" 4 +.IX Item "Finding the next timer in each loop iteration: O(1)" +By virtue of using a binary or 4\-heap, the next timer is always found at a +fixed position in the storage array. +.IP "Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)" 4 +.IX Item "Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)" +A change means an I/O watcher gets started or stopped, which requires +libev to recalculate its status (and possibly tell the kernel, depending +on backend and whether \f(CW\*(C`ev_io_set\*(C'\fR was used). +.IP "Activating one watcher (putting it into the pending state): O(1)" 4 +.IX Item "Activating one watcher (putting it into the pending state): O(1)" +.PD 0 +.IP "Priority handling: O(number_of_priorities)" 4 +.IX Item "Priority handling: O(number_of_priorities)" +.PD +Priorities are implemented by allocating some space for each +priority. When doing priority-based operations, libev usually has to +linearly search all the priorities, but starting/stopping and activating +watchers becomes O(1) with respect to priority handling. +.IP "Sending an ev_async: O(1)" 4 +.IX Item "Sending an ev_async: O(1)" +.PD 0 +.IP "Processing ev_async_send: O(number_of_async_watchers)" 4 +.IX Item "Processing ev_async_send: O(number_of_async_watchers)" +.IP "Processing signals: O(max_signal_number)" 4 +.IX Item "Processing signals: O(max_signal_number)" +.PD +Sending involves a system call \fIiff\fR there were no other \f(CW\*(C`ev_async_send\*(C'\fR +calls in the current loop iteration and the loop is currently +blocked. Checking for async and signal events involves iterating over all +running async watchers or all signal numbers. +.SH "PORTING FROM LIBEV 3.X TO 4.X" +.IX Header "PORTING FROM LIBEV 3.X TO 4.X" +The major version 4 introduced some incompatible changes to the \s-1API.\s0 +.PP +At the moment, the \f(CW\*(C`ev.h\*(C'\fR header file provides compatibility definitions +for all changes, so most programs should still compile. The compatibility +layer might be removed in later versions of libev, so better update to the +new \s-1API\s0 early than late. +.ie n .IP """EV_COMPAT3"" backwards compatibility mechanism" 4 +.el .IP "\f(CWEV_COMPAT3\fR backwards compatibility mechanism" 4 +.IX Item "EV_COMPAT3 backwards compatibility mechanism" +The backward compatibility mechanism can be controlled by +\&\f(CW\*(C`EV_COMPAT3\*(C'\fR. See \*(L"\s-1PREPROCESSOR SYMBOLS/MACROS\*(R"\s0 in the \*(L"\s-1EMBEDDING\*(R"\s0 +section. +.ie n .IP """ev_default_destroy"" and ""ev_default_fork"" have been removed" 4 +.el .IP "\f(CWev_default_destroy\fR and \f(CWev_default_fork\fR have been removed" 4 +.IX Item "ev_default_destroy and ev_default_fork have been removed" +These calls can be replaced easily by their \f(CW\*(C`ev_loop_xxx\*(C'\fR counterparts: +.Sp +.Vb 2 +\& ev_loop_destroy (EV_DEFAULT_UC); +\& ev_loop_fork (EV_DEFAULT); +.Ve +.IP "function/symbol renames" 4 +.IX Item "function/symbol renames" +A number of functions and symbols have been renamed: +.Sp +.Vb 3 +\& ev_loop => ev_run +\& EVLOOP_NONBLOCK => EVRUN_NOWAIT +\& EVLOOP_ONESHOT => EVRUN_ONCE +\& +\& ev_unloop => ev_break +\& EVUNLOOP_CANCEL => EVBREAK_CANCEL +\& EVUNLOOP_ONE => EVBREAK_ONE +\& EVUNLOOP_ALL => EVBREAK_ALL +\& +\& EV_TIMEOUT => EV_TIMER +\& +\& ev_loop_count => ev_iteration +\& ev_loop_depth => ev_depth +\& ev_loop_verify => ev_verify +.Ve +.Sp +Most functions working on \f(CW\*(C`struct ev_loop\*(C'\fR objects don't have an +\&\f(CW\*(C`ev_loop_\*(C'\fR prefix, so it was removed; \f(CW\*(C`ev_loop\*(C'\fR, \f(CW\*(C`ev_unloop\*(C'\fR and +associated constants have been renamed to not collide with the \f(CW\*(C`struct +ev_loop\*(C'\fR anymore and \f(CW\*(C`EV_TIMER\*(C'\fR now follows the same naming scheme +as all other watcher types. Note that \f(CW\*(C`ev_loop_fork\*(C'\fR is still called +\&\f(CW\*(C`ev_loop_fork\*(C'\fR because it would otherwise clash with the \f(CW\*(C`ev_fork\*(C'\fR +typedef. +.ie n .IP """EV_MINIMAL"" mechanism replaced by ""EV_FEATURES""" 4 +.el .IP "\f(CWEV_MINIMAL\fR mechanism replaced by \f(CWEV_FEATURES\fR" 4 +.IX Item "EV_MINIMAL mechanism replaced by EV_FEATURES" +The preprocessor symbol \f(CW\*(C`EV_MINIMAL\*(C'\fR has been replaced by a different +mechanism, \f(CW\*(C`EV_FEATURES\*(C'\fR. Programs using \f(CW\*(C`EV_MINIMAL\*(C'\fR usually compile +and work, but the library code will of course be larger. +.SH "GLOSSARY" +.IX Header "GLOSSARY" +.IP "active" 4 +.IX Item "active" +A watcher is active as long as it has been started and not yet stopped. +See \*(L"\s-1WATCHER STATES\*(R"\s0 for details. +.IP "application" 4 +.IX Item "application" +In this document, an application is whatever is using libev. +.IP "backend" 4 +.IX Item "backend" +The part of the code dealing with the operating system interfaces. +.IP "callback" 4 +.IX Item "callback" +The address of a function that is called when some event has been +detected. Callbacks are being passed the event loop, the watcher that +received the event, and the actual event bitset. +.IP "callback/watcher invocation" 4 +.IX Item "callback/watcher invocation" +The act of calling the callback associated with a watcher. +.IP "event" 4 +.IX Item "event" +A change of state of some external event, such as data now being available +for reading on a file descriptor, time having passed or simply not having +any other events happening anymore. +.Sp +In libev, events are represented as single bits (such as \f(CW\*(C`EV_READ\*(C'\fR or +\&\f(CW\*(C`EV_TIMER\*(C'\fR). +.IP "event library" 4 +.IX Item "event library" +A software package implementing an event model and loop. +.IP "event loop" 4 +.IX Item "event loop" +An entity that handles and processes external events and converts them +into callback invocations. +.IP "event model" 4 +.IX Item "event model" +The model used to describe how an event loop handles and processes +watchers and events. +.IP "pending" 4 +.IX Item "pending" +A watcher is pending as soon as the corresponding event has been +detected. See \*(L"\s-1WATCHER STATES\*(R"\s0 for details. +.IP "real time" 4 +.IX Item "real time" +The physical time that is observed. It is apparently strictly monotonic :) +.IP "wall-clock time" 4 +.IX Item "wall-clock time" +The time and date as shown on clocks. Unlike real time, it can actually +be wrong and jump forwards and backwards, e.g. when you adjust your +clock. +.IP "watcher" 4 +.IX Item "watcher" +A data structure that describes interest in certain events. Watchers need +to be started (attached to an event loop) before they can receive events. +.SH "AUTHOR" +.IX Header "AUTHOR" +Marc Lehmann , with repeated corrections by Mikael +Magnusson and Emanuele Giaquinta, and minor corrections by many others. diff --git a/shadowsocksr-libev/src/libev/ev.c b/shadowsocksr-libev/src/libev/ev.c new file mode 100644 index 000000000..8a3ae88a1 --- /dev/null +++ b/shadowsocksr-libev/src/libev/ev.c @@ -0,0 +1,5097 @@ +/* + * libev event processing core, watcher management + * + * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modifica- + * tion, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- + * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- + * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- + * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License ("GPL") version 2 or any later version, + * in which case the provisions of the GPL are applicable instead of + * the above. If you wish to allow the use of your version of this file + * only under the terms of the GPL and not to allow others to use your + * version of this file under the BSD license, indicate your decision + * by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL. If you do not delete the + * provisions above, a recipient may use your version of this file under + * either the BSD or the GPL. + */ + +/* this big block deduces configuration from config.h */ +#ifndef EV_STANDALONE +# ifdef EV_CONFIG_H +# include EV_CONFIG_H +# else +# include "config.h" +# endif + +# if HAVE_FLOOR +# ifndef EV_USE_FLOOR +# define EV_USE_FLOOR 1 +# endif +# endif + +# if HAVE_CLOCK_SYSCALL +# ifndef EV_USE_CLOCK_SYSCALL +# define EV_USE_CLOCK_SYSCALL 1 +# ifndef EV_USE_REALTIME +# define EV_USE_REALTIME 0 +# endif +# ifndef EV_USE_MONOTONIC +# define EV_USE_MONOTONIC 1 +# endif +# endif +# elif !defined EV_USE_CLOCK_SYSCALL +# define EV_USE_CLOCK_SYSCALL 0 +# endif + +# if HAVE_CLOCK_GETTIME +# ifndef EV_USE_MONOTONIC +# define EV_USE_MONOTONIC 1 +# endif +# ifndef EV_USE_REALTIME +# define EV_USE_REALTIME 0 +# endif +# else +# ifndef EV_USE_MONOTONIC +# define EV_USE_MONOTONIC 0 +# endif +# ifndef EV_USE_REALTIME +# define EV_USE_REALTIME 0 +# endif +# endif + +# if HAVE_NANOSLEEP +# ifndef EV_USE_NANOSLEEP +# define EV_USE_NANOSLEEP EV_FEATURE_OS +# endif +# else +# undef EV_USE_NANOSLEEP +# define EV_USE_NANOSLEEP 0 +# endif + +# if HAVE_SELECT //&& HAVE_SYS_SELECT_H +# ifndef EV_USE_SELECT +# define EV_USE_SELECT EV_FEATURE_BACKENDS +# endif +# else +# undef EV_USE_SELECT +# define EV_USE_SELECT 0 +# endif + +# if HAVE_POLL && HAVE_POLL_H +# ifndef EV_USE_POLL +# define EV_USE_POLL EV_FEATURE_BACKENDS +# endif +# else +# undef EV_USE_POLL +# define EV_USE_POLL 0 +# endif + +# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H +# ifndef EV_USE_EPOLL +# define EV_USE_EPOLL EV_FEATURE_BACKENDS +# endif +# else +# undef EV_USE_EPOLL +# define EV_USE_EPOLL 0 +# endif + +# if HAVE_KQUEUE && HAVE_SYS_EVENT_H +# ifndef EV_USE_KQUEUE +# define EV_USE_KQUEUE EV_FEATURE_BACKENDS +# endif +# else +# undef EV_USE_KQUEUE +# define EV_USE_KQUEUE 0 +# endif + +# if HAVE_PORT_H && HAVE_PORT_CREATE +# ifndef EV_USE_PORT +# define EV_USE_PORT EV_FEATURE_BACKENDS +# endif +# else +# undef EV_USE_PORT +# define EV_USE_PORT 0 +# endif + +# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H +# ifndef EV_USE_INOTIFY +# define EV_USE_INOTIFY EV_FEATURE_OS +# endif +# else +# undef EV_USE_INOTIFY +# define EV_USE_INOTIFY 0 +# endif + +# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H +# ifndef EV_USE_SIGNALFD +# define EV_USE_SIGNALFD EV_FEATURE_OS +# endif +# else +# undef EV_USE_SIGNALFD +# define EV_USE_SIGNALFD 0 +# endif + +# if HAVE_EVENTFD +# ifndef EV_USE_EVENTFD +# define EV_USE_EVENTFD EV_FEATURE_OS +# endif +# else +# undef EV_USE_EVENTFD +# define EV_USE_EVENTFD 0 +# endif + +#endif + +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include + +#include + +#ifdef EV_H +# include EV_H +#else +# include "ev.h" +#endif + +#if EV_NO_THREADS +# undef EV_NO_SMP +# define EV_NO_SMP 1 +# undef ECB_NO_THREADS +# define ECB_NO_THREADS 1 +#endif +#if EV_NO_SMP +# undef EV_NO_SMP +# define ECB_NO_SMP 1 +#endif + +#ifndef _WIN32 +# include +# include +# include +#else +# include +# define WIN32_LEAN_AND_MEAN +# include +# include +# ifndef EV_SELECT_IS_WINSOCKET +# define EV_SELECT_IS_WINSOCKET 1 +# endif +# undef EV_AVOID_STDIO +#endif + +/* OS X, in its infinite idiocy, actually HARDCODES + * a limit of 1024 into their select. Where people have brains, + * OS X engineers apparently have a vacuum. Or maybe they were + * ordered to have a vacuum, or they do anything for money. + * This might help. Or not. + */ +#define _DARWIN_UNLIMITED_SELECT 1 + +/* this block tries to deduce configuration from header-defined symbols and defaults */ + +/* try to deduce the maximum number of signals on this platform */ +#if defined EV_NSIG +/* use what's provided */ +#elif defined NSIG +# define EV_NSIG (NSIG) +#elif defined _NSIG +# define EV_NSIG (_NSIG) +#elif defined SIGMAX +# define EV_NSIG (SIGMAX+1) +#elif defined SIG_MAX +# define EV_NSIG (SIG_MAX+1) +#elif defined _SIG_MAX +# define EV_NSIG (_SIG_MAX+1) +#elif defined MAXSIG +# define EV_NSIG (MAXSIG+1) +#elif defined MAX_SIG +# define EV_NSIG (MAX_SIG+1) +#elif defined SIGARRAYSIZE +# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ +#elif defined _sys_nsig +# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ +#else +# define EV_NSIG (8 * sizeof (sigset_t) + 1) +#endif + +#ifndef EV_USE_FLOOR +# define EV_USE_FLOOR 0 +#endif + +#ifndef EV_USE_CLOCK_SYSCALL +# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 +# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS +# else +# define EV_USE_CLOCK_SYSCALL 0 +# endif +#endif + +#if !(_POSIX_TIMERS > 0) +# ifndef EV_USE_MONOTONIC +# define EV_USE_MONOTONIC 0 +# endif +# ifndef EV_USE_REALTIME +# define EV_USE_REALTIME 0 +# endif +#endif + +#ifndef EV_USE_MONOTONIC +# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 +# define EV_USE_MONOTONIC EV_FEATURE_OS +# else +# define EV_USE_MONOTONIC 0 +# endif +#endif + +#ifndef EV_USE_REALTIME +# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL +#endif + +#ifndef EV_USE_NANOSLEEP +# if _POSIX_C_SOURCE >= 199309L +# define EV_USE_NANOSLEEP EV_FEATURE_OS +# else +# define EV_USE_NANOSLEEP 0 +# endif +#endif + +#ifndef EV_USE_SELECT +# define EV_USE_SELECT EV_FEATURE_BACKENDS +#endif + +#ifndef EV_USE_POLL +# ifdef _WIN32 +# define EV_USE_POLL 0 +# else +# define EV_USE_POLL EV_FEATURE_BACKENDS +# endif +#endif + +#ifndef EV_USE_EPOLL +# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) +# define EV_USE_EPOLL EV_FEATURE_BACKENDS +# else +# define EV_USE_EPOLL 0 +# endif +#endif + +#ifndef EV_USE_KQUEUE +# define EV_USE_KQUEUE 0 +#endif + +#ifndef EV_USE_PORT +# define EV_USE_PORT 0 +#endif + +#ifndef EV_USE_INOTIFY +# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) +# define EV_USE_INOTIFY EV_FEATURE_OS +# else +# define EV_USE_INOTIFY 0 +# endif +#endif + +#ifndef EV_PID_HASHSIZE +# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 +#endif + +#ifndef EV_INOTIFY_HASHSIZE +# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 +#endif + +#ifndef EV_USE_EVENTFD +# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) +# define EV_USE_EVENTFD EV_FEATURE_OS +# else +# define EV_USE_EVENTFD 0 +# endif +#endif + +#ifndef EV_USE_SIGNALFD +# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) +# define EV_USE_SIGNALFD EV_FEATURE_OS +# else +# define EV_USE_SIGNALFD 0 +# endif +#endif + +#if 0 /* debugging */ +# define EV_VERIFY 3 +# define EV_USE_4HEAP 1 +# define EV_HEAP_CACHE_AT 1 +#endif + +#ifndef EV_VERIFY +# define EV_VERIFY (EV_FEATURE_API ? 1 : 0) +#endif + +#ifndef EV_USE_4HEAP +# define EV_USE_4HEAP EV_FEATURE_DATA +#endif + +#ifndef EV_HEAP_CACHE_AT +# define EV_HEAP_CACHE_AT EV_FEATURE_DATA +#endif + +#ifdef ANDROID +/* supposedly, android doesn't typedef fd_mask */ +# undef EV_USE_SELECT +# define EV_USE_SELECT 0 +/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ +# undef EV_USE_CLOCK_SYSCALL +# define EV_USE_CLOCK_SYSCALL 0 +#endif + +/* aix's poll.h seems to cause lots of trouble */ +#ifdef _AIX +/* AIX has a completely broken poll.h header */ +# undef EV_USE_POLL +# define EV_USE_POLL 0 +#endif + +/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ +/* which makes programs even slower. might work on other unices, too. */ +#if EV_USE_CLOCK_SYSCALL +# include +# ifdef SYS_clock_gettime +# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) +# undef EV_USE_MONOTONIC +# define EV_USE_MONOTONIC 1 +# else +# undef EV_USE_CLOCK_SYSCALL +# define EV_USE_CLOCK_SYSCALL 0 +# endif +#endif + +/* this block fixes any misconfiguration where we know we run into trouble otherwise */ + +#ifndef CLOCK_MONOTONIC +# undef EV_USE_MONOTONIC +# define EV_USE_MONOTONIC 0 +#endif + +#ifndef CLOCK_REALTIME +# undef EV_USE_REALTIME +# define EV_USE_REALTIME 0 +#endif + +#if !EV_STAT_ENABLE +# undef EV_USE_INOTIFY +# define EV_USE_INOTIFY 0 +#endif + +#if !EV_USE_NANOSLEEP +/* hp-ux has it in sys/time.h, which we unconditionally include above */ +# if !defined _WIN32 && !defined __hpux +# include +# endif +#endif + +#if EV_USE_INOTIFY +# include +# include +/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ +# ifndef IN_DONT_FOLLOW +# undef EV_USE_INOTIFY +# define EV_USE_INOTIFY 0 +# endif +#endif + +#if EV_USE_EVENTFD +/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ +# include +# ifndef EFD_NONBLOCK +# define EFD_NONBLOCK O_NONBLOCK +# endif +# ifndef EFD_CLOEXEC +# ifdef O_CLOEXEC +# define EFD_CLOEXEC O_CLOEXEC +# else +# define EFD_CLOEXEC 02000000 +# endif +# endif +EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); +#endif + +#if EV_USE_SIGNALFD +/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ +# include +# ifndef SFD_NONBLOCK +# define SFD_NONBLOCK O_NONBLOCK +# endif +# ifndef SFD_CLOEXEC +# ifdef O_CLOEXEC +# define SFD_CLOEXEC O_CLOEXEC +# else +# define SFD_CLOEXEC 02000000 +# endif +# endif +EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); + +struct signalfd_siginfo +{ + uint32_t ssi_signo; + char pad[128 - sizeof (uint32_t)]; +}; +#endif + +/**/ + +#if EV_VERIFY >= 3 +# define EV_FREQUENT_CHECK ev_verify (EV_A) +#else +# define EV_FREQUENT_CHECK do { } while (0) +#endif + +/* + * This is used to work around floating point rounding problems. + * This value is good at least till the year 4000. + */ +#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ +/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ + +#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ +#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ + +#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) +#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) + +/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ +/* ECB.H BEGIN */ +/* + * libecb - http://software.schmorp.de/pkg/libecb + * + * Copyright (©) 2009-2015 Marc Alexander Lehmann + * Copyright (©) 2011 Emanuele Giaquinta + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modifica- + * tion, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- + * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- + * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- + * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License ("GPL") version 2 or any later version, + * in which case the provisions of the GPL are applicable instead of + * the above. If you wish to allow the use of your version of this file + * only under the terms of the GPL and not to allow others to use your + * version of this file under the BSD license, indicate your decision + * by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL. If you do not delete the + * provisions above, a recipient may use your version of this file under + * either the BSD or the GPL. + */ + +#ifndef ECB_H +#define ECB_H + +/* 16 bits major, 16 bits minor */ +#define ECB_VERSION 0x00010005 + +#ifdef _WIN32 + typedef signed char int8_t; + typedef unsigned char uint8_t; + typedef signed short int16_t; + typedef unsigned short uint16_t; + typedef signed int int32_t; + typedef unsigned int uint32_t; + #if __GNUC__ + typedef signed long long int64_t; + typedef unsigned long long uint64_t; + #else /* _MSC_VER || __BORLANDC__ */ + typedef signed __int64 int64_t; + typedef unsigned __int64 uint64_t; + #endif + #ifdef _WIN64 + #define ECB_PTRSIZE 8 + typedef uint64_t uintptr_t; + typedef int64_t intptr_t; + #else + #define ECB_PTRSIZE 4 + typedef uint32_t uintptr_t; + typedef int32_t intptr_t; + #endif +#else + #include + #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU + #define ECB_PTRSIZE 8 + #else + #define ECB_PTRSIZE 4 + #endif +#endif + +#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) +#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) + +/* work around x32 idiocy by defining proper macros */ +#if ECB_GCC_AMD64 || ECB_MSVC_AMD64 + #if _ILP32 + #define ECB_AMD64_X32 1 + #else + #define ECB_AMD64 1 + #endif +#endif + +/* many compilers define _GNUC_ to some versions but then only implement + * what their idiot authors think are the "more important" extensions, + * causing enormous grief in return for some better fake benchmark numbers. + * or so. + * we try to detect these and simply assume they are not gcc - if they have + * an issue with that they should have done it right in the first place. + */ +#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ + #define ECB_GCC_VERSION(major,minor) 0 +#else + #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) +#endif + +#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) + +#if __clang__ && defined __has_builtin + #define ECB_CLANG_BUILTIN(x) __has_builtin (x) +#else + #define ECB_CLANG_BUILTIN(x) 0 +#endif + +#if __clang__ && defined __has_extension + #define ECB_CLANG_EXTENSION(x) __has_extension (x) +#else + #define ECB_CLANG_EXTENSION(x) 0 +#endif + +#define ECB_CPP (__cplusplus+0) +#define ECB_CPP11 (__cplusplus >= 201103L) + +#if ECB_CPP + #define ECB_C 0 + #define ECB_STDC_VERSION 0 +#else + #define ECB_C 1 + #define ECB_STDC_VERSION __STDC_VERSION__ +#endif + +#define ECB_C99 (ECB_STDC_VERSION >= 199901L) +#define ECB_C11 (ECB_STDC_VERSION >= 201112L) + +#if ECB_CPP + #define ECB_EXTERN_C extern "C" + #define ECB_EXTERN_C_BEG ECB_EXTERN_C { + #define ECB_EXTERN_C_END } +#else + #define ECB_EXTERN_C extern + #define ECB_EXTERN_C_BEG + #define ECB_EXTERN_C_END +#endif + +/*****************************************************************************/ + +/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ +/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ + +#if ECB_NO_THREADS + #define ECB_NO_SMP 1 +#endif + +#if ECB_NO_SMP + #define ECB_MEMORY_FENCE do { } while (0) +#endif + +/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ +#if __xlC__ && ECB_CPP + #include +#endif + +#if 1400 <= _MSC_VER + #include /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ +#endif + +#ifndef ECB_MEMORY_FENCE + #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 + #if __i386 || __i386__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") + #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") + #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") + #elif ECB_GCC_AMD64 + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") + #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") + #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") + #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") + #elif defined __ARM_ARCH_2__ \ + || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ + || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ + || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ + || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ + || defined __ARM_ARCH_5TEJ__ + /* should not need any, unless running old code on newer cpu - arm doesn't support that */ + #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ + || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ + || defined __ARM_ARCH_6T2__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") + #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ + || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") + #elif __aarch64__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") + #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") + #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") + #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") + #elif defined __s390__ || defined __s390x__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") + #elif defined __mips__ + /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ + /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ + #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") + #elif defined __alpha__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") + #elif defined __hppa__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") + #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") + #elif defined __ia64__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") + #elif defined __m68k__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") + #elif defined __m88k__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") + #elif defined __sh__ + #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") + #endif + #endif +#endif + +#ifndef ECB_MEMORY_FENCE + #if ECB_GCC_VERSION(4,7) + /* see comment below (stdatomic.h) about the C11 memory model. */ + #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) + #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) + #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) + + #elif ECB_CLANG_EXTENSION(c_atomic) + /* see comment below (stdatomic.h) about the C11 memory model. */ + #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) + #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) + #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) + + #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ + #define ECB_MEMORY_FENCE __sync_synchronize () + #elif _MSC_VER >= 1500 /* VC++ 2008 */ + /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ + #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) + #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() + #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ + #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() + #elif _MSC_VER >= 1400 /* VC++ 2005 */ + #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) + #define ECB_MEMORY_FENCE _ReadWriteBarrier () + #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ + #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () + #elif defined _WIN32 + #include + #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ + #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 + #include + #define ECB_MEMORY_FENCE __machine_rw_barrier () + #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () + #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () + #elif __xlC__ + #define ECB_MEMORY_FENCE __sync () + #endif +#endif + +#ifndef ECB_MEMORY_FENCE + #if ECB_C11 && !defined __STDC_NO_ATOMICS__ + /* we assume that these memory fences work on all variables/all memory accesses, */ + /* not just C11 atomics and atomic accesses */ + #include + /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ + /* any fence other than seq_cst, which isn't very efficient for us. */ + /* Why that is, we don't know - either the C11 memory model is quite useless */ + /* for most usages, or gcc and clang have a bug */ + /* I *currently* lean towards the latter, and inefficiently implement */ + /* all three of ecb's fences as a seq_cst fence */ + /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ + /* for all __atomic_thread_fence's except seq_cst */ + #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) + #endif +#endif + +#ifndef ECB_MEMORY_FENCE + #if !ECB_AVOID_PTHREADS + /* + * if you get undefined symbol references to pthread_mutex_lock, + * or failure to find pthread.h, then you should implement + * the ECB_MEMORY_FENCE operations for your cpu/compiler + * OR provide pthread.h and link against the posix thread library + * of your system. + */ + #include + #define ECB_NEEDS_PTHREADS 1 + #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 + + static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; + #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) + #endif +#endif + +#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE + #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE +#endif + +#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE + #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE +#endif + +/*****************************************************************************/ + +#if ECB_CPP + #define ecb_inline static inline +#elif ECB_GCC_VERSION(2,5) + #define ecb_inline static __inline__ +#elif ECB_C99 + #define ecb_inline static inline +#else + #define ecb_inline static +#endif + +#if ECB_GCC_VERSION(3,3) + #define ecb_restrict __restrict__ +#elif ECB_C99 + #define ecb_restrict restrict +#else + #define ecb_restrict +#endif + +typedef int ecb_bool; + +#define ECB_CONCAT_(a, b) a ## b +#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) +#define ECB_STRINGIFY_(a) # a +#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) +#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) + +#define ecb_function_ ecb_inline + +#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) + #define ecb_attribute(attrlist) __attribute__ (attrlist) +#else + #define ecb_attribute(attrlist) +#endif + +#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) + #define ecb_is_constant(expr) __builtin_constant_p (expr) +#else + /* possible C11 impl for integral types + typedef struct ecb_is_constant_struct ecb_is_constant_struct; + #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ + + #define ecb_is_constant(expr) 0 +#endif + +#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) + #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) +#else + #define ecb_expect(expr,value) (expr) +#endif + +#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) + #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) +#else + #define ecb_prefetch(addr,rw,locality) +#endif + +/* no emulation for ecb_decltype */ +#if ECB_CPP11 + // older implementations might have problems with decltype(x)::type, work around it + template struct ecb_decltype_t { typedef T type; }; + #define ecb_decltype(x) ecb_decltype_t::type +#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) + #define ecb_decltype(x) __typeof__ (x) +#endif + +#if _MSC_VER >= 1300 + #define ecb_deprecated __declspec (deprecated) +#else + #define ecb_deprecated ecb_attribute ((__deprecated__)) +#endif + +#if _MSC_VER >= 1500 + #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) +#elif ECB_GCC_VERSION(4,5) + #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) +#else + #define ecb_deprecated_message(msg) ecb_deprecated +#endif + +#if _MSC_VER >= 1400 + #define ecb_noinline __declspec (noinline) +#else + #define ecb_noinline ecb_attribute ((__noinline__)) +#endif + +#define ecb_unused ecb_attribute ((__unused__)) +#define ecb_const ecb_attribute ((__const__)) +#define ecb_pure ecb_attribute ((__pure__)) + +#if ECB_C11 || __IBMC_NORETURN + /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ + #define ecb_noreturn _Noreturn +#elif ECB_CPP11 + #define ecb_noreturn [[noreturn]] +#elif _MSC_VER >= 1200 + /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ + #define ecb_noreturn __declspec (noreturn) +#else + #define ecb_noreturn ecb_attribute ((__noreturn__)) +#endif + +#if ECB_GCC_VERSION(4,3) + #define ecb_artificial ecb_attribute ((__artificial__)) + #define ecb_hot ecb_attribute ((__hot__)) + #define ecb_cold ecb_attribute ((__cold__)) +#else + #define ecb_artificial + #define ecb_hot + #define ecb_cold +#endif + +/* put around conditional expressions if you are very sure that the */ +/* expression is mostly true or mostly false. note that these return */ +/* booleans, not the expression. */ +#define ecb_expect_false(expr) ecb_expect (!!(expr), 0) +#define ecb_expect_true(expr) ecb_expect (!!(expr), 1) +/* for compatibility to the rest of the world */ +#define ecb_likely(expr) ecb_expect_true (expr) +#define ecb_unlikely(expr) ecb_expect_false (expr) + +/* count trailing zero bits and count # of one bits */ +#if ECB_GCC_VERSION(3,4) \ + || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ + && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ + && ECB_CLANG_BUILTIN(__builtin_popcount)) + /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ + #define ecb_ld32(x) (__builtin_clz (x) ^ 31) + #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) + #define ecb_ctz32(x) __builtin_ctz (x) + #define ecb_ctz64(x) __builtin_ctzll (x) + #define ecb_popcount32(x) __builtin_popcount (x) + /* no popcountll */ +#else + ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); + ecb_function_ ecb_const int + ecb_ctz32 (uint32_t x) + { +#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) + unsigned long r; + _BitScanForward (&r, x); + return (int)r; +#else + int r = 0; + + x &= ~x + 1; /* this isolates the lowest bit */ + +#if ECB_branchless_on_i386 + r += !!(x & 0xaaaaaaaa) << 0; + r += !!(x & 0xcccccccc) << 1; + r += !!(x & 0xf0f0f0f0) << 2; + r += !!(x & 0xff00ff00) << 3; + r += !!(x & 0xffff0000) << 4; +#else + if (x & 0xaaaaaaaa) r += 1; + if (x & 0xcccccccc) r += 2; + if (x & 0xf0f0f0f0) r += 4; + if (x & 0xff00ff00) r += 8; + if (x & 0xffff0000) r += 16; +#endif + + return r; +#endif + } + + ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); + ecb_function_ ecb_const int + ecb_ctz64 (uint64_t x) + { +#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) + unsigned long r; + _BitScanForward64 (&r, x); + return (int)r; +#else + int shift = x & 0xffffffff ? 0 : 32; + return ecb_ctz32 (x >> shift) + shift; +#endif + } + + ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); + ecb_function_ ecb_const int + ecb_popcount32 (uint32_t x) + { + x -= (x >> 1) & 0x55555555; + x = ((x >> 2) & 0x33333333) + (x & 0x33333333); + x = ((x >> 4) + x) & 0x0f0f0f0f; + x *= 0x01010101; + + return x >> 24; + } + + ecb_function_ ecb_const int ecb_ld32 (uint32_t x); + ecb_function_ ecb_const int ecb_ld32 (uint32_t x) + { +#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) + unsigned long r; + _BitScanReverse (&r, x); + return (int)r; +#else + int r = 0; + + if (x >> 16) { x >>= 16; r += 16; } + if (x >> 8) { x >>= 8; r += 8; } + if (x >> 4) { x >>= 4; r += 4; } + if (x >> 2) { x >>= 2; r += 2; } + if (x >> 1) { r += 1; } + + return r; +#endif + } + + ecb_function_ ecb_const int ecb_ld64 (uint64_t x); + ecb_function_ ecb_const int ecb_ld64 (uint64_t x) + { +#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) + unsigned long r; + _BitScanReverse64 (&r, x); + return (int)r; +#else + int r = 0; + + if (x >> 32) { x >>= 32; r += 32; } + + return r + ecb_ld32 (x); +#endif + } +#endif + +ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); +ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } +ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); +ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } + +ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); +ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) +{ + return ( (x * 0x0802U & 0x22110U) + | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; +} + +ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); +ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) +{ + x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); + x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); + x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); + x = ( x >> 8 ) | ( x << 8); + + return x; +} + +ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); +ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) +{ + x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); + x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); + x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); + x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); + x = ( x >> 16 ) | ( x << 16); + + return x; +} + +/* popcount64 is only available on 64 bit cpus as gcc builtin */ +/* so for this version we are lazy */ +ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); +ecb_function_ ecb_const int +ecb_popcount64 (uint64_t x) +{ + return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); +} + +ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); +ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); +ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); +ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); +ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); +ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); +ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); +ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); + +ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } +ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } +ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } +ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } +ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } +ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } +ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } +ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } + +#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) + #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) + #define ecb_bswap16(x) __builtin_bswap16 (x) + #else + #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) + #endif + #define ecb_bswap32(x) __builtin_bswap32 (x) + #define ecb_bswap64(x) __builtin_bswap64 (x) +#elif _MSC_VER + #include + #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) + #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) + #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) +#else + ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); + ecb_function_ ecb_const uint16_t + ecb_bswap16 (uint16_t x) + { + return ecb_rotl16 (x, 8); + } + + ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); + ecb_function_ ecb_const uint32_t + ecb_bswap32 (uint32_t x) + { + return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); + } + + ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); + ecb_function_ ecb_const uint64_t + ecb_bswap64 (uint64_t x) + { + return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); + } +#endif + +#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) + #define ecb_unreachable() __builtin_unreachable () +#else + /* this seems to work fine, but gcc always emits a warning for it :/ */ + ecb_inline ecb_noreturn void ecb_unreachable (void); + ecb_inline ecb_noreturn void ecb_unreachable (void) { } +#endif + +/* try to tell the compiler that some condition is definitely true */ +#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 + +ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); +ecb_inline ecb_const uint32_t +ecb_byteorder_helper (void) +{ + /* the union code still generates code under pressure in gcc, */ + /* but less than using pointers, and always seems to */ + /* successfully return a constant. */ + /* the reason why we have this horrible preprocessor mess */ + /* is to avoid it in all cases, at least on common architectures */ + /* or when using a recent enough gcc version (>= 4.6) */ +#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ + || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) + #define ECB_LITTLE_ENDIAN 1 + return 0x44332211; +#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ + || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) + #define ECB_BIG_ENDIAN 1 + return 0x11223344; +#else + union + { + uint8_t c[4]; + uint32_t u; + } u = { 0x11, 0x22, 0x33, 0x44 }; + return u.u; +#endif +} + +ecb_inline ecb_const ecb_bool ecb_big_endian (void); +ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } +ecb_inline ecb_const ecb_bool ecb_little_endian (void); +ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } + +#if ECB_GCC_VERSION(3,0) || ECB_C99 + #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) +#else + #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) +#endif + +#if ECB_CPP + template + static inline T ecb_div_rd (T val, T div) + { + return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; + } + template + static inline T ecb_div_ru (T val, T div) + { + return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; + } +#else + #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) + #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) +#endif + +#if ecb_cplusplus_does_not_suck + /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ + template + static inline int ecb_array_length (const T (&arr)[N]) + { + return N; + } +#else + #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) +#endif + +ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); +ecb_function_ ecb_const uint32_t +ecb_binary16_to_binary32 (uint32_t x) +{ + unsigned int s = (x & 0x8000) << (31 - 15); + int e = (x >> 10) & 0x001f; + unsigned int m = x & 0x03ff; + + if (ecb_expect_false (e == 31)) + /* infinity or NaN */ + e = 255 - (127 - 15); + else if (ecb_expect_false (!e)) + { + if (ecb_expect_true (!m)) + /* zero, handled by code below by forcing e to 0 */ + e = 0 - (127 - 15); + else + { + /* subnormal, renormalise */ + unsigned int s = 10 - ecb_ld32 (m); + + m = (m << s) & 0x3ff; /* mask implicit bit */ + e -= s - 1; + } + } + + /* e and m now are normalised, or zero, (or inf or nan) */ + e += 127 - 15; + + return s | (e << 23) | (m << (23 - 10)); +} + +ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); +ecb_function_ ecb_const uint16_t +ecb_binary32_to_binary16 (uint32_t x) +{ + unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ + unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ + unsigned int m = x & 0x007fffff; + + x &= 0x7fffffff; + + /* if it's within range of binary16 normals, use fast path */ + if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) + { + /* mantissa round-to-even */ + m += 0x00000fff + ((m >> (23 - 10)) & 1); + + /* handle overflow */ + if (ecb_expect_false (m >= 0x00800000)) + { + m >>= 1; + e += 1; + } + + return s | (e << 10) | (m >> (23 - 10)); + } + + /* handle large numbers and infinity */ + if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) + return s | 0x7c00; + + /* handle zero, subnormals and small numbers */ + if (ecb_expect_true (x < 0x38800000)) + { + /* zero */ + if (ecb_expect_true (!x)) + return s; + + /* handle subnormals */ + + /* too small, will be zero */ + if (e < (14 - 24)) /* might not be sharp, but is good enough */ + return s; + + m |= 0x00800000; /* make implicit bit explicit */ + + /* very tricky - we need to round to the nearest e (+10) bit value */ + { + unsigned int bits = 14 - e; + unsigned int half = (1 << (bits - 1)) - 1; + unsigned int even = (m >> bits) & 1; + + /* if this overflows, we will end up with a normalised number */ + m = (m + half + even) >> bits; + } + + return s | m; + } + + /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ + m >>= 13; + + return s | 0x7c00 | m | !m; +} + +/*******************************************************************************/ +/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ + +/* basically, everything uses "ieee pure-endian" floating point numbers */ +/* the only noteworthy exception is ancient armle, which uses order 43218765 */ +#if 0 \ + || __i386 || __i386__ \ + || ECB_GCC_AMD64 \ + || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ + || defined __s390__ || defined __s390x__ \ + || defined __mips__ \ + || defined __alpha__ \ + || defined __hppa__ \ + || defined __ia64__ \ + || defined __m68k__ \ + || defined __m88k__ \ + || defined __sh__ \ + || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ + || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ + || defined __aarch64__ + #define ECB_STDFP 1 + #include /* for memcpy */ +#else + #define ECB_STDFP 0 +#endif + +#ifndef ECB_NO_LIBM + + #include /* for frexp*, ldexp*, INFINITY, NAN */ + + /* only the oldest of old doesn't have this one. solaris. */ + #ifdef INFINITY + #define ECB_INFINITY INFINITY + #else + #define ECB_INFINITY HUGE_VAL + #endif + + #ifdef NAN + #define ECB_NAN NAN + #else + #define ECB_NAN ECB_INFINITY + #endif + + #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L + #define ecb_ldexpf(x,e) ldexpf ((x), (e)) + #define ecb_frexpf(x,e) frexpf ((x), (e)) + #else + #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) + #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) + #endif + + /* convert a float to ieee single/binary32 */ + ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); + ecb_function_ ecb_const uint32_t + ecb_float_to_binary32 (float x) + { + uint32_t r; + + #if ECB_STDFP + memcpy (&r, &x, 4); + #else + /* slow emulation, works for anything but -0 */ + uint32_t m; + int e; + + if (x == 0e0f ) return 0x00000000U; + if (x > +3.40282346638528860e+38f) return 0x7f800000U; + if (x < -3.40282346638528860e+38f) return 0xff800000U; + if (x != x ) return 0x7fbfffffU; + + m = ecb_frexpf (x, &e) * 0x1000000U; + + r = m & 0x80000000U; + + if (r) + m = -m; + + if (e <= -126) + { + m &= 0xffffffU; + m >>= (-125 - e); + e = -126; + } + + r |= (e + 126) << 23; + r |= m & 0x7fffffU; + #endif + + return r; + } + + /* converts an ieee single/binary32 to a float */ + ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); + ecb_function_ ecb_const float + ecb_binary32_to_float (uint32_t x) + { + float r; + + #if ECB_STDFP + memcpy (&r, &x, 4); + #else + /* emulation, only works for normals and subnormals and +0 */ + int neg = x >> 31; + int e = (x >> 23) & 0xffU; + + x &= 0x7fffffU; + + if (e) + x |= 0x800000U; + else + e = 1; + + /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ + r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); + + r = neg ? -r : r; + #endif + + return r; + } + + /* convert a double to ieee double/binary64 */ + ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); + ecb_function_ ecb_const uint64_t + ecb_double_to_binary64 (double x) + { + uint64_t r; + + #if ECB_STDFP + memcpy (&r, &x, 8); + #else + /* slow emulation, works for anything but -0 */ + uint64_t m; + int e; + + if (x == 0e0 ) return 0x0000000000000000U; + if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; + if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; + if (x != x ) return 0X7ff7ffffffffffffU; + + m = frexp (x, &e) * 0x20000000000000U; + + r = m & 0x8000000000000000;; + + if (r) + m = -m; + + if (e <= -1022) + { + m &= 0x1fffffffffffffU; + m >>= (-1021 - e); + e = -1022; + } + + r |= ((uint64_t)(e + 1022)) << 52; + r |= m & 0xfffffffffffffU; + #endif + + return r; + } + + /* converts an ieee double/binary64 to a double */ + ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); + ecb_function_ ecb_const double + ecb_binary64_to_double (uint64_t x) + { + double r; + + #if ECB_STDFP + memcpy (&r, &x, 8); + #else + /* emulation, only works for normals and subnormals and +0 */ + int neg = x >> 63; + int e = (x >> 52) & 0x7ffU; + + x &= 0xfffffffffffffU; + + if (e) + x |= 0x10000000000000U; + else + e = 1; + + /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ + r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); + + r = neg ? -r : r; + #endif + + return r; + } + + /* convert a float to ieee half/binary16 */ + ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); + ecb_function_ ecb_const uint16_t + ecb_float_to_binary16 (float x) + { + return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); + } + + /* convert an ieee half/binary16 to float */ + ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); + ecb_function_ ecb_const float + ecb_binary16_to_float (uint16_t x) + { + return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); + } + +#endif + +#endif + +/* ECB.H END */ + +#if ECB_MEMORY_FENCE_NEEDS_PTHREADS +/* if your architecture doesn't need memory fences, e.g. because it is + * single-cpu/core, or if you use libev in a project that doesn't use libev + * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling + * libev, in which cases the memory fences become nops. + * alternatively, you can remove this #error and link against libpthread, + * which will then provide the memory fences. + */ +# error "memory fences not defined for your architecture, please report" +#endif + +#ifndef ECB_MEMORY_FENCE +# define ECB_MEMORY_FENCE do { } while (0) +# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE +# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE +#endif + +#define expect_false(cond) ecb_expect_false (cond) +#define expect_true(cond) ecb_expect_true (cond) +#define noinline ecb_noinline + +#define inline_size ecb_inline + +#if EV_FEATURE_CODE +# define inline_speed ecb_inline +#else +# define inline_speed static noinline +#endif + +#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) + +#if EV_MINPRI == EV_MAXPRI +# define ABSPRI(w) (((W)w), 0) +#else +# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) +#endif + +#define EMPTY /* required for microsofts broken pseudo-c compiler */ +#define EMPTY2(a,b) /* used to suppress some warnings */ + +typedef ev_watcher *W; +typedef ev_watcher_list *WL; +typedef ev_watcher_time *WT; + +#define ev_active(w) ((W)(w))->active +#define ev_at(w) ((WT)(w))->at + +#if EV_USE_REALTIME +/* sig_atomic_t is used to avoid per-thread variables or locking but still */ +/* giving it a reasonably high chance of working on typical architectures */ +static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ +#endif + +#if EV_USE_MONOTONIC +static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ +#endif + +#ifndef EV_FD_TO_WIN32_HANDLE +# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) +#endif +#ifndef EV_WIN32_HANDLE_TO_FD +# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) +#endif +#ifndef EV_WIN32_CLOSE_FD +# define EV_WIN32_CLOSE_FD(fd) close (fd) +#endif + +#ifdef _WIN32 +# include "ev_win32.c" +#endif + +/*****************************************************************************/ + +/* define a suitable floor function (only used by periodics atm) */ + +#if EV_USE_FLOOR +# include +# define ev_floor(v) floor (v) +#else + +#include + +/* a floor() replacement function, should be independent of ev_tstamp type */ +static ev_tstamp noinline +ev_floor (ev_tstamp v) +{ + /* the choice of shift factor is not terribly important */ +#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ + const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; +#else + const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; +#endif + + /* argument too large for an unsigned long? */ + if (expect_false (v >= shift)) + { + ev_tstamp f; + + if (v == v - 1.) + return v; /* very large number */ + + f = shift * ev_floor (v * (1. / shift)); + return f + ev_floor (v - f); + } + + /* special treatment for negative args? */ + if (expect_false (v < 0.)) + { + ev_tstamp f = -ev_floor (-v); + + return f - (f == v ? 0 : 1); + } + + /* fits into an unsigned long */ + return (unsigned long)v; +} + +#endif + +/*****************************************************************************/ + +#ifdef __linux +# include +#endif + +static unsigned int noinline ecb_cold +ev_linux_version (void) +{ +#ifdef __linux + unsigned int v = 0; + struct utsname buf; + int i; + char *p = buf.release; + + if (uname (&buf)) + return 0; + + for (i = 3+1; --i; ) + { + unsigned int c = 0; + + for (;;) + { + if (*p >= '0' && *p <= '9') + c = c * 10 + *p++ - '0'; + else + { + p += *p == '.'; + break; + } + } + + v = (v << 8) | c; + } + + return v; +#else + return 0; +#endif +} + +/*****************************************************************************/ + +#if EV_AVOID_STDIO +static void noinline ecb_cold +ev_printerr (const char *msg) +{ + write (STDERR_FILENO, msg, strlen (msg)); +} +#endif + +static void (*syserr_cb)(const char *msg) EV_THROW; + +void ecb_cold +ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW +{ + syserr_cb = cb; +} + +static void noinline ecb_cold +ev_syserr (const char *msg) +{ + if (!msg) + msg = "(libev) system error"; + + if (syserr_cb) + syserr_cb (msg); + else + { +#if EV_AVOID_STDIO + ev_printerr (msg); + ev_printerr (": "); + ev_printerr (strerror (errno)); + ev_printerr ("\n"); +#else + perror (msg); +#endif + abort (); + } +} + +static void * +ev_realloc_emul (void *ptr, long size) EV_THROW +{ + /* some systems, notably openbsd and darwin, fail to properly + * implement realloc (x, 0) (as required by both ansi c-89 and + * the single unix specification, so work around them here. + * recently, also (at least) fedora and debian started breaking it, + * despite documenting it otherwise. + */ + + if (size) + return realloc (ptr, size); + + free (ptr); + return 0; +} + +static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; + +void ecb_cold +ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW +{ + alloc = cb; +} + +inline_speed void * +ev_realloc (void *ptr, long size) +{ + ptr = alloc (ptr, size); + + if (!ptr && size) + { +#if EV_AVOID_STDIO + ev_printerr ("(libev) memory allocation failed, aborting.\n"); +#else + fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); +#endif + abort (); + } + + return ptr; +} + +#define ev_malloc(size) ev_realloc (0, (size)) +#define ev_free(ptr) ev_realloc ((ptr), 0) + +/*****************************************************************************/ + +/* set in reify when reification needed */ +#define EV_ANFD_REIFY 1 + +/* file descriptor info structure */ +typedef struct +{ + WL head; + unsigned char events; /* the events watched for */ + unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ + unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ + unsigned char unused; +#if EV_USE_EPOLL + unsigned int egen; /* generation counter to counter epoll bugs */ +#endif +#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP + SOCKET handle; +#endif +#if EV_USE_IOCP + OVERLAPPED or, ow; +#endif +} ANFD; + +/* stores the pending event set for a given watcher */ +typedef struct +{ + W w; + int events; /* the pending event set for the given watcher */ +} ANPENDING; + +#if EV_USE_INOTIFY +/* hash table entry per inotify-id */ +typedef struct +{ + WL head; +} ANFS; +#endif + +/* Heap Entry */ +#if EV_HEAP_CACHE_AT + /* a heap element */ + typedef struct { + ev_tstamp at; + WT w; + } ANHE; + + #define ANHE_w(he) (he).w /* access watcher, read-write */ + #define ANHE_at(he) (he).at /* access cached at, read-only */ + #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ +#else + /* a heap element */ + typedef WT ANHE; + + #define ANHE_w(he) (he) + #define ANHE_at(he) (he)->at + #define ANHE_at_cache(he) +#endif + +#if EV_MULTIPLICITY + + struct ev_loop + { + ev_tstamp ev_rt_now; + #define ev_rt_now ((loop)->ev_rt_now) + #define VAR(name,decl) decl; + #include "ev_vars.h" + #undef VAR + }; + #include "ev_wrap.h" + + static struct ev_loop default_loop_struct; + EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ + +#else + + EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ + #define VAR(name,decl) static decl; + #include "ev_vars.h" + #undef VAR + + static int ev_default_loop_ptr; + +#endif + +#if EV_FEATURE_API +# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) +# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) +# define EV_INVOKE_PENDING invoke_cb (EV_A) +#else +# define EV_RELEASE_CB (void)0 +# define EV_ACQUIRE_CB (void)0 +# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) +#endif + +#define EVBREAK_RECURSE 0x80 + +/*****************************************************************************/ + +#ifndef EV_HAVE_EV_TIME +ev_tstamp +ev_time (void) EV_THROW +{ +#if EV_USE_REALTIME + if (expect_true (have_realtime)) + { + struct timespec ts; + clock_gettime (CLOCK_REALTIME, &ts); + return ts.tv_sec + ts.tv_nsec * 1e-9; + } +#endif + + struct timeval tv; + gettimeofday (&tv, 0); + return tv.tv_sec + tv.tv_usec * 1e-6; +} +#endif + +inline_size ev_tstamp +get_clock (void) +{ +#if EV_USE_MONOTONIC + if (expect_true (have_monotonic)) + { + struct timespec ts; + clock_gettime (CLOCK_MONOTONIC, &ts); + return ts.tv_sec + ts.tv_nsec * 1e-9; + } +#endif + + return ev_time (); +} + +#if EV_MULTIPLICITY +ev_tstamp +ev_now (EV_P) EV_THROW +{ + return ev_rt_now; +} +#endif + +void +ev_sleep (ev_tstamp delay) EV_THROW +{ + if (delay > 0.) + { +#if EV_USE_NANOSLEEP + struct timespec ts; + + EV_TS_SET (ts, delay); + nanosleep (&ts, 0); +#elif defined _WIN32 + Sleep ((unsigned long)(delay * 1e3)); +#else + struct timeval tv; + + /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ + /* something not guaranteed by newer posix versions, but guaranteed */ + /* by older ones */ + EV_TV_SET (tv, delay); + select (0, 0, 0, 0, &tv); +#endif + } +} + +/*****************************************************************************/ + +#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ + +/* find a suitable new size for the given array, */ +/* hopefully by rounding to a nice-to-malloc size */ +inline_size int +array_nextsize (int elem, int cur, int cnt) +{ + int ncur = cur + 1; + + do + ncur <<= 1; + while (cnt > ncur); + + /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ + if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) + { + ncur *= elem; + ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); + ncur = ncur - sizeof (void *) * 4; + ncur /= elem; + } + + return ncur; +} + +static void * noinline ecb_cold +array_realloc (int elem, void *base, int *cur, int cnt) +{ + *cur = array_nextsize (elem, *cur, cnt); + return ev_realloc (base, elem * *cur); +} + +#define array_init_zero(base,count) \ + memset ((void *)(base), 0, sizeof (*(base)) * (count)) + +#define array_needsize(type,base,cur,cnt,init) \ + if (expect_false ((cnt) > (cur))) \ + { \ + int ecb_unused ocur_ = (cur); \ + (base) = (type *)array_realloc \ + (sizeof (type), (base), &(cur), (cnt)); \ + init ((base) + (ocur_), (cur) - ocur_); \ + } + +#if 0 +#define array_slim(type,stem) \ + if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ + { \ + stem ## max = array_roundsize (stem ## cnt >> 1); \ + base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ + fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ + } +#endif + +#define array_free(stem, idx) \ + ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 + +/*****************************************************************************/ + +/* dummy callback for pending events */ +static void noinline +pendingcb (EV_P_ ev_prepare *w, int revents) +{ +} + +void noinline +ev_feed_event (EV_P_ void *w, int revents) EV_THROW +{ + W w_ = (W)w; + int pri = ABSPRI (w_); + + if (expect_false (w_->pending)) + pendings [pri][w_->pending - 1].events |= revents; + else + { + w_->pending = ++pendingcnt [pri]; + array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); + pendings [pri][w_->pending - 1].w = w_; + pendings [pri][w_->pending - 1].events = revents; + } + + pendingpri = NUMPRI - 1; +} + +inline_speed void +feed_reverse (EV_P_ W w) +{ + array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); + rfeeds [rfeedcnt++] = w; +} + +inline_size void +feed_reverse_done (EV_P_ int revents) +{ + do + ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); + while (rfeedcnt); +} + +inline_speed void +queue_events (EV_P_ W *events, int eventcnt, int type) +{ + int i; + + for (i = 0; i < eventcnt; ++i) + ev_feed_event (EV_A_ events [i], type); +} + +/*****************************************************************************/ + +inline_speed void +fd_event_nocheck (EV_P_ int fd, int revents) +{ + ANFD *anfd = anfds + fd; + ev_io *w; + + for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) + { + int ev = w->events & revents; + + if (ev) + ev_feed_event (EV_A_ (W)w, ev); + } +} + +/* do not submit kernel events for fds that have reify set */ +/* because that means they changed while we were polling for new events */ +inline_speed void +fd_event (EV_P_ int fd, int revents) +{ + ANFD *anfd = anfds + fd; + + if (expect_true (!anfd->reify)) + fd_event_nocheck (EV_A_ fd, revents); +} + +void +ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW +{ + if (fd >= 0 && fd < anfdmax) + fd_event_nocheck (EV_A_ fd, revents); +} + +/* make sure the external fd watch events are in-sync */ +/* with the kernel/libev internal state */ +inline_size void +fd_reify (EV_P) +{ + int i; + +#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP + for (i = 0; i < fdchangecnt; ++i) + { + int fd = fdchanges [i]; + ANFD *anfd = anfds + fd; + + if (anfd->reify & EV__IOFDSET && anfd->head) + { + SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); + + if (handle != anfd->handle) + { + unsigned long arg; + + assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); + + /* handle changed, but fd didn't - we need to do it in two steps */ + backend_modify (EV_A_ fd, anfd->events, 0); + anfd->events = 0; + anfd->handle = handle; + } + } + } +#endif + + for (i = 0; i < fdchangecnt; ++i) + { + int fd = fdchanges [i]; + ANFD *anfd = anfds + fd; + ev_io *w; + + unsigned char o_events = anfd->events; + unsigned char o_reify = anfd->reify; + + anfd->reify = 0; + + /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ + { + anfd->events = 0; + + for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) + anfd->events |= (unsigned char)w->events; + + if (o_events != anfd->events) + o_reify = EV__IOFDSET; /* actually |= */ + } + + if (o_reify & EV__IOFDSET) + backend_modify (EV_A_ fd, o_events, anfd->events); + } + + fdchangecnt = 0; +} + +/* something about the given fd changed */ +inline_size void +fd_change (EV_P_ int fd, int flags) +{ + unsigned char reify = anfds [fd].reify; + anfds [fd].reify |= flags; + + if (expect_true (!reify)) + { + ++fdchangecnt; + array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); + fdchanges [fdchangecnt - 1] = fd; + } +} + +/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ +inline_speed void ecb_cold +fd_kill (EV_P_ int fd) +{ + ev_io *w; + + while ((w = (ev_io *)anfds [fd].head)) + { + ev_io_stop (EV_A_ w); + ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); + } +} + +/* check whether the given fd is actually valid, for error recovery */ +inline_size int ecb_cold +fd_valid (int fd) +{ +#ifdef _WIN32 + return EV_FD_TO_WIN32_HANDLE (fd) != -1; +#else + return fcntl (fd, F_GETFD) != -1; +#endif +} + +/* called on EBADF to verify fds */ +static void noinline ecb_cold +fd_ebadf (EV_P) +{ + int fd; + + for (fd = 0; fd < anfdmax; ++fd) + if (anfds [fd].events) + if (!fd_valid (fd) && errno == EBADF) + fd_kill (EV_A_ fd); +} + +/* called on ENOMEM in select/poll to kill some fds and retry */ +static void noinline ecb_cold +fd_enomem (EV_P) +{ + int fd; + + for (fd = anfdmax; fd--; ) + if (anfds [fd].events) + { + fd_kill (EV_A_ fd); + break; + } +} + +/* usually called after fork if backend needs to re-arm all fds from scratch */ +static void noinline +fd_rearm_all (EV_P) +{ + int fd; + + for (fd = 0; fd < anfdmax; ++fd) + if (anfds [fd].events) + { + anfds [fd].events = 0; + anfds [fd].emask = 0; + fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); + } +} + +/* used to prepare libev internal fd's */ +/* this is not fork-safe */ +inline_speed void +fd_intern (int fd) +{ +#ifdef _WIN32 + unsigned long arg = 1; + ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); +#else + fcntl (fd, F_SETFD, FD_CLOEXEC); + fcntl (fd, F_SETFL, O_NONBLOCK); +#endif +} + +/*****************************************************************************/ + +/* + * the heap functions want a real array index. array index 0 is guaranteed to not + * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives + * the branching factor of the d-tree. + */ + +/* + * at the moment we allow libev the luxury of two heaps, + * a small-code-size 2-heap one and a ~1.5kb larger 4-heap + * which is more cache-efficient. + * the difference is about 5% with 50000+ watchers. + */ +#if EV_USE_4HEAP + +#define DHEAP 4 +#define HEAP0 (DHEAP - 1) /* index of first element in heap */ +#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) +#define UPHEAP_DONE(p,k) ((p) == (k)) + +/* away from the root */ +inline_speed void +downheap (ANHE *heap, int N, int k) +{ + ANHE he = heap [k]; + ANHE *E = heap + N + HEAP0; + + for (;;) + { + ev_tstamp minat; + ANHE *minpos; + ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; + + /* find minimum child */ + if (expect_true (pos + DHEAP - 1 < E)) + { + /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); + if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); + if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); + if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); + } + else if (pos < E) + { + /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); + if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); + if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); + if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); + } + else + break; + + if (ANHE_at (he) <= minat) + break; + + heap [k] = *minpos; + ev_active (ANHE_w (*minpos)) = k; + + k = minpos - heap; + } + + heap [k] = he; + ev_active (ANHE_w (he)) = k; +} + +#else /* 4HEAP */ + +#define HEAP0 1 +#define HPARENT(k) ((k) >> 1) +#define UPHEAP_DONE(p,k) (!(p)) + +/* away from the root */ +inline_speed void +downheap (ANHE *heap, int N, int k) +{ + ANHE he = heap [k]; + + for (;;) + { + int c = k << 1; + + if (c >= N + HEAP0) + break; + + c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) + ? 1 : 0; + + if (ANHE_at (he) <= ANHE_at (heap [c])) + break; + + heap [k] = heap [c]; + ev_active (ANHE_w (heap [k])) = k; + + k = c; + } + + heap [k] = he; + ev_active (ANHE_w (he)) = k; +} +#endif + +/* towards the root */ +inline_speed void +upheap (ANHE *heap, int k) +{ + ANHE he = heap [k]; + + for (;;) + { + int p = HPARENT (k); + + if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) + break; + + heap [k] = heap [p]; + ev_active (ANHE_w (heap [k])) = k; + k = p; + } + + heap [k] = he; + ev_active (ANHE_w (he)) = k; +} + +/* move an element suitably so it is in a correct place */ +inline_size void +adjustheap (ANHE *heap, int N, int k) +{ + if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) + upheap (heap, k); + else + downheap (heap, N, k); +} + +/* rebuild the heap: this function is used only once and executed rarely */ +inline_size void +reheap (ANHE *heap, int N) +{ + int i; + + /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ + /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ + for (i = 0; i < N; ++i) + upheap (heap, i + HEAP0); +} + +/*****************************************************************************/ + +/* associate signal watchers to a signal signal */ +typedef struct +{ + EV_ATOMIC_T pending; +#if EV_MULTIPLICITY + EV_P; +#endif + WL head; +} ANSIG; + +static ANSIG signals [EV_NSIG - 1]; + +/*****************************************************************************/ + +#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE + +static void noinline ecb_cold +evpipe_init (EV_P) +{ + if (!ev_is_active (&pipe_w)) + { + int fds [2]; + +# if EV_USE_EVENTFD + fds [0] = -1; + fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); + if (fds [1] < 0 && errno == EINVAL) + fds [1] = eventfd (0, 0); + + if (fds [1] < 0) +# endif + { + while (pipe (fds)) + ev_syserr ("(libev) error creating signal/async pipe"); + + fd_intern (fds [0]); + } + + evpipe [0] = fds [0]; + + if (evpipe [1] < 0) + evpipe [1] = fds [1]; /* first call, set write fd */ + else + { + /* on subsequent calls, do not change evpipe [1] */ + /* so that evpipe_write can always rely on its value. */ + /* this branch does not do anything sensible on windows, */ + /* so must not be executed on windows */ + + dup2 (fds [1], evpipe [1]); + close (fds [1]); + } + + fd_intern (evpipe [1]); + + ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); + ev_io_start (EV_A_ &pipe_w); + ev_unref (EV_A); /* watcher should not keep loop alive */ + } +} + +inline_speed void +evpipe_write (EV_P_ EV_ATOMIC_T *flag) +{ + ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ + + if (expect_true (*flag)) + return; + + *flag = 1; + ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ + + pipe_write_skipped = 1; + + ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ + + if (pipe_write_wanted) + { + int old_errno; + + pipe_write_skipped = 0; + ECB_MEMORY_FENCE_RELEASE; + + old_errno = errno; /* save errno because write will clobber it */ + +#if EV_USE_EVENTFD + if (evpipe [0] < 0) + { + uint64_t counter = 1; + write (evpipe [1], &counter, sizeof (uint64_t)); + } + else +#endif + { +#ifdef _WIN32 + WSABUF buf; + DWORD sent; + buf.buf = &buf; + buf.len = 1; + WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); +#else + write (evpipe [1], &(evpipe [1]), 1); +#endif + } + + errno = old_errno; + } +} + +/* called whenever the libev signal pipe */ +/* got some events (signal, async) */ +static void +pipecb (EV_P_ ev_io *iow, int revents) +{ + int i; + + if (revents & EV_READ) + { +#if EV_USE_EVENTFD + if (evpipe [0] < 0) + { + uint64_t counter; + read (evpipe [1], &counter, sizeof (uint64_t)); + } + else +#endif + { + char dummy[4]; +#ifdef _WIN32 + WSABUF buf; + DWORD recvd; + DWORD flags = 0; + buf.buf = dummy; + buf.len = sizeof (dummy); + WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); +#else + read (evpipe [0], &dummy, sizeof (dummy)); +#endif + } + } + + pipe_write_skipped = 0; + + ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ + +#if EV_SIGNAL_ENABLE + if (sig_pending) + { + sig_pending = 0; + + ECB_MEMORY_FENCE; + + for (i = EV_NSIG - 1; i--; ) + if (expect_false (signals [i].pending)) + ev_feed_signal_event (EV_A_ i + 1); + } +#endif + +#if EV_ASYNC_ENABLE + if (async_pending) + { + async_pending = 0; + + ECB_MEMORY_FENCE; + + for (i = asynccnt; i--; ) + if (asyncs [i]->sent) + { + asyncs [i]->sent = 0; + ECB_MEMORY_FENCE_RELEASE; + ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); + } + } +#endif +} + +/*****************************************************************************/ + +void +ev_feed_signal (int signum) EV_THROW +{ +#if EV_MULTIPLICITY + EV_P; + ECB_MEMORY_FENCE_ACQUIRE; + EV_A = signals [signum - 1].loop; + + if (!EV_A) + return; +#endif + + signals [signum - 1].pending = 1; + evpipe_write (EV_A_ &sig_pending); +} + +static void +ev_sighandler (int signum) +{ +#ifdef _WIN32 + signal (signum, ev_sighandler); +#endif + + ev_feed_signal (signum); +} + +void noinline +ev_feed_signal_event (EV_P_ int signum) EV_THROW +{ + WL w; + + if (expect_false (signum <= 0 || signum >= EV_NSIG)) + return; + + --signum; + +#if EV_MULTIPLICITY + /* it is permissible to try to feed a signal to the wrong loop */ + /* or, likely more useful, feeding a signal nobody is waiting for */ + + if (expect_false (signals [signum].loop != EV_A)) + return; +#endif + + signals [signum].pending = 0; + ECB_MEMORY_FENCE_RELEASE; + + for (w = signals [signum].head; w; w = w->next) + ev_feed_event (EV_A_ (W)w, EV_SIGNAL); +} + +#if EV_USE_SIGNALFD +static void +sigfdcb (EV_P_ ev_io *iow, int revents) +{ + struct signalfd_siginfo si[2], *sip; /* these structs are big */ + + for (;;) + { + ssize_t res = read (sigfd, si, sizeof (si)); + + /* not ISO-C, as res might be -1, but works with SuS */ + for (sip = si; (char *)sip < (char *)si + res; ++sip) + ev_feed_signal_event (EV_A_ sip->ssi_signo); + + if (res < (ssize_t)sizeof (si)) + break; + } +} +#endif + +#endif + +/*****************************************************************************/ + +#if EV_CHILD_ENABLE +static WL childs [EV_PID_HASHSIZE]; + +static ev_signal childev; + +#ifndef WIFCONTINUED +# define WIFCONTINUED(status) 0 +#endif + +/* handle a single child status event */ +inline_speed void +child_reap (EV_P_ int chain, int pid, int status) +{ + ev_child *w; + int traced = WIFSTOPPED (status) || WIFCONTINUED (status); + + for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) + { + if ((w->pid == pid || !w->pid) + && (!traced || (w->flags & 1))) + { + ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ + w->rpid = pid; + w->rstatus = status; + ev_feed_event (EV_A_ (W)w, EV_CHILD); + } + } +} + +#ifndef WCONTINUED +# define WCONTINUED 0 +#endif + +/* called on sigchld etc., calls waitpid */ +static void +childcb (EV_P_ ev_signal *sw, int revents) +{ + int pid, status; + + /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ + if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) + if (!WCONTINUED + || errno != EINVAL + || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) + return; + + /* make sure we are called again until all children have been reaped */ + /* we need to do it this way so that the callback gets called before we continue */ + ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); + + child_reap (EV_A_ pid, pid, status); + if ((EV_PID_HASHSIZE) > 1) + child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ +} + +#endif + +/*****************************************************************************/ + +#if EV_USE_IOCP +# include "ev_iocp.c" +#endif +#if EV_USE_PORT +# include "ev_port.c" +#endif +#if EV_USE_KQUEUE +# include "ev_kqueue.c" +#endif +#if EV_USE_EPOLL +# include "ev_epoll.c" +#endif +#if EV_USE_POLL +# include "ev_poll.c" +#endif +#if EV_USE_SELECT +# include "ev_select.c" +#endif + +int ecb_cold +ev_version_major (void) EV_THROW +{ + return EV_VERSION_MAJOR; +} + +int ecb_cold +ev_version_minor (void) EV_THROW +{ + return EV_VERSION_MINOR; +} + +/* return true if we are running with elevated privileges and should ignore env variables */ +int inline_size ecb_cold +enable_secure (void) +{ +#ifdef _WIN32 + return 0; +#else + return getuid () != geteuid () + || getgid () != getegid (); +#endif +} + +unsigned int ecb_cold +ev_supported_backends (void) EV_THROW +{ + unsigned int flags = 0; + + if (EV_USE_PORT ) flags |= EVBACKEND_PORT; + if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; + if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; + if (EV_USE_POLL ) flags |= EVBACKEND_POLL; + if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; + + return flags; +} + +unsigned int ecb_cold +ev_recommended_backends (void) EV_THROW +{ + unsigned int flags = ev_supported_backends (); + +#if !defined(__NetBSD__) && !defined(__FreeBSD__) + /* kqueue is borked on everything but netbsd apparently */ + /* it usually doesn't work correctly on anything but sockets and pipes */ + flags &= ~EVBACKEND_KQUEUE; +#endif +#ifdef __APPLE__ + /* only select works correctly on that "unix-certified" platform */ + flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ + flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ +#endif +#ifdef __FreeBSD__ + flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ +#endif + + return flags; +} + +unsigned int ecb_cold +ev_embeddable_backends (void) EV_THROW +{ + int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; + + /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ + if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ + flags &= ~EVBACKEND_EPOLL; + + return flags; +} + +unsigned int +ev_backend (EV_P) EV_THROW +{ + return backend; +} + +#if EV_FEATURE_API +unsigned int +ev_iteration (EV_P) EV_THROW +{ + return loop_count; +} + +unsigned int +ev_depth (EV_P) EV_THROW +{ + return loop_depth; +} + +void +ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW +{ + io_blocktime = interval; +} + +void +ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW +{ + timeout_blocktime = interval; +} + +void +ev_set_userdata (EV_P_ void *data) EV_THROW +{ + userdata = data; +} + +void * +ev_userdata (EV_P) EV_THROW +{ + return userdata; +} + +void +ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW +{ + invoke_cb = invoke_pending_cb; +} + +void +ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW +{ + release_cb = release; + acquire_cb = acquire; +} +#endif + +/* initialise a loop structure, must be zero-initialised */ +static void noinline ecb_cold +loop_init (EV_P_ unsigned int flags) EV_THROW +{ + if (!backend) + { + origflags = flags; + +#if EV_USE_REALTIME + if (!have_realtime) + { + struct timespec ts; + + if (!clock_gettime (CLOCK_REALTIME, &ts)) + have_realtime = 1; + } +#endif + +#if EV_USE_MONOTONIC + if (!have_monotonic) + { + struct timespec ts; + + if (!clock_gettime (CLOCK_MONOTONIC, &ts)) + have_monotonic = 1; + } +#endif + + /* pid check not overridable via env */ +#ifndef _WIN32 + if (flags & EVFLAG_FORKCHECK) + curpid = getpid (); +#endif + + if (!(flags & EVFLAG_NOENV) + && !enable_secure () + && getenv ("LIBEV_FLAGS")) + flags = atoi (getenv ("LIBEV_FLAGS")); + + ev_rt_now = ev_time (); + mn_now = get_clock (); + now_floor = mn_now; + rtmn_diff = ev_rt_now - mn_now; +#if EV_FEATURE_API + invoke_cb = ev_invoke_pending; +#endif + + io_blocktime = 0.; + timeout_blocktime = 0.; + backend = 0; + backend_fd = -1; + sig_pending = 0; +#if EV_ASYNC_ENABLE + async_pending = 0; +#endif + pipe_write_skipped = 0; + pipe_write_wanted = 0; + evpipe [0] = -1; + evpipe [1] = -1; +#if EV_USE_INOTIFY + fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; +#endif +#if EV_USE_SIGNALFD + sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; +#endif + + if (!(flags & EVBACKEND_MASK)) + flags |= ev_recommended_backends (); + +#if EV_USE_IOCP + if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); +#endif +#if EV_USE_PORT + if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); +#endif +#if EV_USE_KQUEUE + if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); +#endif +#if EV_USE_EPOLL + if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); +#endif +#if EV_USE_POLL + if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); +#endif +#if EV_USE_SELECT + if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); +#endif + + ev_prepare_init (&pending_w, pendingcb); + +#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE + ev_init (&pipe_w, pipecb); + ev_set_priority (&pipe_w, EV_MAXPRI); +#endif + } +} + +/* free up a loop structure */ +void ecb_cold +ev_loop_destroy (EV_P) +{ + int i; + +#if EV_MULTIPLICITY + /* mimic free (0) */ + if (!EV_A) + return; +#endif + +#if EV_CLEANUP_ENABLE + /* queue cleanup watchers (and execute them) */ + if (expect_false (cleanupcnt)) + { + queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); + EV_INVOKE_PENDING; + } +#endif + +#if EV_CHILD_ENABLE + if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) + { + ev_ref (EV_A); /* child watcher */ + ev_signal_stop (EV_A_ &childev); + } +#endif + + if (ev_is_active (&pipe_w)) + { + /*ev_ref (EV_A);*/ + /*ev_io_stop (EV_A_ &pipe_w);*/ + + if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); + if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); + } + +#if EV_USE_SIGNALFD + if (ev_is_active (&sigfd_w)) + close (sigfd); +#endif + +#if EV_USE_INOTIFY + if (fs_fd >= 0) + close (fs_fd); +#endif + + if (backend_fd >= 0) + close (backend_fd); + +#if EV_USE_IOCP + if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); +#endif +#if EV_USE_PORT + if (backend == EVBACKEND_PORT ) port_destroy (EV_A); +#endif +#if EV_USE_KQUEUE + if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); +#endif +#if EV_USE_EPOLL + if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); +#endif +#if EV_USE_POLL + if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); +#endif +#if EV_USE_SELECT + if (backend == EVBACKEND_SELECT) select_destroy (EV_A); +#endif + + for (i = NUMPRI; i--; ) + { + array_free (pending, [i]); +#if EV_IDLE_ENABLE + array_free (idle, [i]); +#endif + } + + ev_free (anfds); anfds = 0; anfdmax = 0; + + /* have to use the microsoft-never-gets-it-right macro */ + array_free (rfeed, EMPTY); + array_free (fdchange, EMPTY); + array_free (timer, EMPTY); +#if EV_PERIODIC_ENABLE + array_free (periodic, EMPTY); +#endif +#if EV_FORK_ENABLE + array_free (fork, EMPTY); +#endif +#if EV_CLEANUP_ENABLE + array_free (cleanup, EMPTY); +#endif + array_free (prepare, EMPTY); + array_free (check, EMPTY); +#if EV_ASYNC_ENABLE + array_free (async, EMPTY); +#endif + + backend = 0; + +#if EV_MULTIPLICITY + if (ev_is_default_loop (EV_A)) +#endif + ev_default_loop_ptr = 0; +#if EV_MULTIPLICITY + else + ev_free (EV_A); +#endif +} + +#if EV_USE_INOTIFY +inline_size void infy_fork (EV_P); +#endif + +inline_size void +loop_fork (EV_P) +{ +#if EV_USE_PORT + if (backend == EVBACKEND_PORT ) port_fork (EV_A); +#endif +#if EV_USE_KQUEUE + if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); +#endif +#if EV_USE_EPOLL + if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); +#endif +#if EV_USE_INOTIFY + infy_fork (EV_A); +#endif + +#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE + if (ev_is_active (&pipe_w) && postfork != 2) + { + /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ + + ev_ref (EV_A); + ev_io_stop (EV_A_ &pipe_w); + + if (evpipe [0] >= 0) + EV_WIN32_CLOSE_FD (evpipe [0]); + + evpipe_init (EV_A); + /* iterate over everything, in case we missed something before */ + ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); + } +#endif + + postfork = 0; +} + +#if EV_MULTIPLICITY + +struct ev_loop * ecb_cold +ev_loop_new (unsigned int flags) EV_THROW +{ + EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); + + memset (EV_A, 0, sizeof (struct ev_loop)); + loop_init (EV_A_ flags); + + if (ev_backend (EV_A)) + return EV_A; + + ev_free (EV_A); + return 0; +} + +#endif /* multiplicity */ + +#if EV_VERIFY +static void noinline ecb_cold +verify_watcher (EV_P_ W w) +{ + assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); + + if (w->pending) + assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); +} + +static void noinline ecb_cold +verify_heap (EV_P_ ANHE *heap, int N) +{ + int i; + + for (i = HEAP0; i < N + HEAP0; ++i) + { + assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); + assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); + assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); + + verify_watcher (EV_A_ (W)ANHE_w (heap [i])); + } +} + +static void noinline ecb_cold +array_verify (EV_P_ W *ws, int cnt) +{ + while (cnt--) + { + assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); + verify_watcher (EV_A_ ws [cnt]); + } +} +#endif + +#if EV_FEATURE_API +void ecb_cold +ev_verify (EV_P) EV_THROW +{ +#if EV_VERIFY + int i; + WL w, w2; + + assert (activecnt >= -1); + + assert (fdchangemax >= fdchangecnt); + for (i = 0; i < fdchangecnt; ++i) + assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); + + assert (anfdmax >= 0); + for (i = 0; i < anfdmax; ++i) + { + int j = 0; + + for (w = w2 = anfds [i].head; w; w = w->next) + { + verify_watcher (EV_A_ (W)w); + + if (j++ & 1) + { + assert (("libev: io watcher list contains a loop", w != w2)); + w2 = w2->next; + } + + assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); + assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); + } + } + + assert (timermax >= timercnt); + verify_heap (EV_A_ timers, timercnt); + +#if EV_PERIODIC_ENABLE + assert (periodicmax >= periodiccnt); + verify_heap (EV_A_ periodics, periodiccnt); +#endif + + for (i = NUMPRI; i--; ) + { + assert (pendingmax [i] >= pendingcnt [i]); +#if EV_IDLE_ENABLE + assert (idleall >= 0); + assert (idlemax [i] >= idlecnt [i]); + array_verify (EV_A_ (W *)idles [i], idlecnt [i]); +#endif + } + +#if EV_FORK_ENABLE + assert (forkmax >= forkcnt); + array_verify (EV_A_ (W *)forks, forkcnt); +#endif + +#if EV_CLEANUP_ENABLE + assert (cleanupmax >= cleanupcnt); + array_verify (EV_A_ (W *)cleanups, cleanupcnt); +#endif + +#if EV_ASYNC_ENABLE + assert (asyncmax >= asynccnt); + array_verify (EV_A_ (W *)asyncs, asynccnt); +#endif + +#if EV_PREPARE_ENABLE + assert (preparemax >= preparecnt); + array_verify (EV_A_ (W *)prepares, preparecnt); +#endif + +#if EV_CHECK_ENABLE + assert (checkmax >= checkcnt); + array_verify (EV_A_ (W *)checks, checkcnt); +#endif + +# if 0 +#if EV_CHILD_ENABLE + for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) + for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) +#endif +# endif +#endif +} +#endif + +#if EV_MULTIPLICITY +struct ev_loop * ecb_cold +#else +int +#endif +ev_default_loop (unsigned int flags) EV_THROW +{ + if (!ev_default_loop_ptr) + { +#if EV_MULTIPLICITY + EV_P = ev_default_loop_ptr = &default_loop_struct; +#else + ev_default_loop_ptr = 1; +#endif + + loop_init (EV_A_ flags); + + if (ev_backend (EV_A)) + { +#if EV_CHILD_ENABLE + ev_signal_init (&childev, childcb, SIGCHLD); + ev_set_priority (&childev, EV_MAXPRI); + ev_signal_start (EV_A_ &childev); + ev_unref (EV_A); /* child watcher should not keep loop alive */ +#endif + } + else + ev_default_loop_ptr = 0; + } + + return ev_default_loop_ptr; +} + +void +ev_loop_fork (EV_P) EV_THROW +{ + postfork = 1; +} + +/*****************************************************************************/ + +void +ev_invoke (EV_P_ void *w, int revents) +{ + EV_CB_INVOKE ((W)w, revents); +} + +unsigned int +ev_pending_count (EV_P) EV_THROW +{ + int pri; + unsigned int count = 0; + + for (pri = NUMPRI; pri--; ) + count += pendingcnt [pri]; + + return count; +} + +void noinline +ev_invoke_pending (EV_P) +{ + pendingpri = NUMPRI; + + while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ + { + --pendingpri; + + while (pendingcnt [pendingpri]) + { + ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; + + p->w->pending = 0; + EV_CB_INVOKE (p->w, p->events); + EV_FREQUENT_CHECK; + } + } +} + +#if EV_IDLE_ENABLE +/* make idle watchers pending. this handles the "call-idle */ +/* only when higher priorities are idle" logic */ +inline_size void +idle_reify (EV_P) +{ + if (expect_false (idleall)) + { + int pri; + + for (pri = NUMPRI; pri--; ) + { + if (pendingcnt [pri]) + break; + + if (idlecnt [pri]) + { + queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); + break; + } + } + } +} +#endif + +/* make timers pending */ +inline_size void +timers_reify (EV_P) +{ + EV_FREQUENT_CHECK; + + if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) + { + do + { + ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); + + /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ + + /* first reschedule or stop timer */ + if (w->repeat) + { + ev_at (w) += w->repeat; + if (ev_at (w) < mn_now) + ev_at (w) = mn_now; + + assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); + + ANHE_at_cache (timers [HEAP0]); + downheap (timers, timercnt, HEAP0); + } + else + ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ + + EV_FREQUENT_CHECK; + feed_reverse (EV_A_ (W)w); + } + while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); + + feed_reverse_done (EV_A_ EV_TIMER); + } +} + +#if EV_PERIODIC_ENABLE + +static void noinline +periodic_recalc (EV_P_ ev_periodic *w) +{ + ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; + ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); + + /* the above almost always errs on the low side */ + while (at <= ev_rt_now) + { + ev_tstamp nat = at + w->interval; + + /* when resolution fails us, we use ev_rt_now */ + if (expect_false (nat == at)) + { + at = ev_rt_now; + break; + } + + at = nat; + } + + ev_at (w) = at; +} + +/* make periodics pending */ +inline_size void +periodics_reify (EV_P) +{ + EV_FREQUENT_CHECK; + + while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) + { + do + { + ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); + + /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ + + /* first reschedule or stop timer */ + if (w->reschedule_cb) + { + ev_at (w) = w->reschedule_cb (w, ev_rt_now); + + assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); + + ANHE_at_cache (periodics [HEAP0]); + downheap (periodics, periodiccnt, HEAP0); + } + else if (w->interval) + { + periodic_recalc (EV_A_ w); + ANHE_at_cache (periodics [HEAP0]); + downheap (periodics, periodiccnt, HEAP0); + } + else + ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ + + EV_FREQUENT_CHECK; + feed_reverse (EV_A_ (W)w); + } + while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); + + feed_reverse_done (EV_A_ EV_PERIODIC); + } +} + +/* simply recalculate all periodics */ +/* TODO: maybe ensure that at least one event happens when jumping forward? */ +static void noinline ecb_cold +periodics_reschedule (EV_P) +{ + int i; + + /* adjust periodics after time jump */ + for (i = HEAP0; i < periodiccnt + HEAP0; ++i) + { + ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); + + if (w->reschedule_cb) + ev_at (w) = w->reschedule_cb (w, ev_rt_now); + else if (w->interval) + periodic_recalc (EV_A_ w); + + ANHE_at_cache (periodics [i]); + } + + reheap (periodics, periodiccnt); +} +#endif + +/* adjust all timers by a given offset */ +static void noinline ecb_cold +timers_reschedule (EV_P_ ev_tstamp adjust) +{ + int i; + + for (i = 0; i < timercnt; ++i) + { + ANHE *he = timers + i + HEAP0; + ANHE_w (*he)->at += adjust; + ANHE_at_cache (*he); + } +} + +/* fetch new monotonic and realtime times from the kernel */ +/* also detect if there was a timejump, and act accordingly */ +inline_speed void +time_update (EV_P_ ev_tstamp max_block) +{ +#if EV_USE_MONOTONIC + if (expect_true (have_monotonic)) + { + int i; + ev_tstamp odiff = rtmn_diff; + + mn_now = get_clock (); + + /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ + /* interpolate in the meantime */ + if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) + { + ev_rt_now = rtmn_diff + mn_now; + return; + } + + now_floor = mn_now; + ev_rt_now = ev_time (); + + /* loop a few times, before making important decisions. + * on the choice of "4": one iteration isn't enough, + * in case we get preempted during the calls to + * ev_time and get_clock. a second call is almost guaranteed + * to succeed in that case, though. and looping a few more times + * doesn't hurt either as we only do this on time-jumps or + * in the unlikely event of having been preempted here. + */ + for (i = 4; --i; ) + { + ev_tstamp diff; + rtmn_diff = ev_rt_now - mn_now; + + diff = odiff - rtmn_diff; + + if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) + return; /* all is well */ + + ev_rt_now = ev_time (); + mn_now = get_clock (); + now_floor = mn_now; + } + + /* no timer adjustment, as the monotonic clock doesn't jump */ + /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ +# if EV_PERIODIC_ENABLE + periodics_reschedule (EV_A); +# endif + } + else +#endif + { + ev_rt_now = ev_time (); + + if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) + { + /* adjust timers. this is easy, as the offset is the same for all of them */ + timers_reschedule (EV_A_ ev_rt_now - mn_now); +#if EV_PERIODIC_ENABLE + periodics_reschedule (EV_A); +#endif + } + + mn_now = ev_rt_now; + } +} + +int +ev_run (EV_P_ int flags) +{ +#if EV_FEATURE_API + ++loop_depth; +#endif + + assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); + + loop_done = EVBREAK_CANCEL; + + EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ + + do + { +#if EV_VERIFY >= 2 + ev_verify (EV_A); +#endif + +#ifndef _WIN32 + if (expect_false (curpid)) /* penalise the forking check even more */ + if (expect_false (getpid () != curpid)) + { + curpid = getpid (); + postfork = 1; + } +#endif + +#if EV_FORK_ENABLE + /* we might have forked, so queue fork handlers */ + if (expect_false (postfork)) + if (forkcnt) + { + queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); + EV_INVOKE_PENDING; + } +#endif + +#if EV_PREPARE_ENABLE + /* queue prepare watchers (and execute them) */ + if (expect_false (preparecnt)) + { + queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); + EV_INVOKE_PENDING; + } +#endif + + if (expect_false (loop_done)) + break; + + /* we might have forked, so reify kernel state if necessary */ + if (expect_false (postfork)) + loop_fork (EV_A); + + /* update fd-related kernel structures */ + fd_reify (EV_A); + + /* calculate blocking time */ + { + ev_tstamp waittime = 0.; + ev_tstamp sleeptime = 0.; + + /* remember old timestamp for io_blocktime calculation */ + ev_tstamp prev_mn_now = mn_now; + + /* update time to cancel out callback processing overhead */ + time_update (EV_A_ 1e100); + + /* from now on, we want a pipe-wake-up */ + pipe_write_wanted = 1; + + ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ + + if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) + { + waittime = MAX_BLOCKTIME; + + if (timercnt) + { + ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; + if (waittime > to) waittime = to; + } + +#if EV_PERIODIC_ENABLE + if (periodiccnt) + { + ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; + if (waittime > to) waittime = to; + } +#endif + + /* don't let timeouts decrease the waittime below timeout_blocktime */ + if (expect_false (waittime < timeout_blocktime)) + waittime = timeout_blocktime; + + /* at this point, we NEED to wait, so we have to ensure */ + /* to pass a minimum nonzero value to the backend */ + if (expect_false (waittime < backend_mintime)) + waittime = backend_mintime; + + /* extra check because io_blocktime is commonly 0 */ + if (expect_false (io_blocktime)) + { + sleeptime = io_blocktime - (mn_now - prev_mn_now); + + if (sleeptime > waittime - backend_mintime) + sleeptime = waittime - backend_mintime; + + if (expect_true (sleeptime > 0.)) + { + ev_sleep (sleeptime); + waittime -= sleeptime; + } + } + } + +#if EV_FEATURE_API + ++loop_count; +#endif + assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ + backend_poll (EV_A_ waittime); + assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ + + pipe_write_wanted = 0; /* just an optimisation, no fence needed */ + + ECB_MEMORY_FENCE_ACQUIRE; + if (pipe_write_skipped) + { + assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); + ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); + } + + + /* update ev_rt_now, do magic */ + time_update (EV_A_ waittime + sleeptime); + } + + /* queue pending timers and reschedule them */ + timers_reify (EV_A); /* relative timers called last */ +#if EV_PERIODIC_ENABLE + periodics_reify (EV_A); /* absolute timers called first */ +#endif + +#if EV_IDLE_ENABLE + /* queue idle watchers unless other events are pending */ + idle_reify (EV_A); +#endif + +#if EV_CHECK_ENABLE + /* queue check watchers, to be executed first */ + if (expect_false (checkcnt)) + queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); +#endif + + EV_INVOKE_PENDING; + } + while (expect_true ( + activecnt + && !loop_done + && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) + )); + + if (loop_done == EVBREAK_ONE) + loop_done = EVBREAK_CANCEL; + +#if EV_FEATURE_API + --loop_depth; +#endif + + return activecnt; +} + +void +ev_break (EV_P_ int how) EV_THROW +{ + loop_done = how; +} + +void +ev_ref (EV_P) EV_THROW +{ + ++activecnt; +} + +void +ev_unref (EV_P) EV_THROW +{ + --activecnt; +} + +void +ev_now_update (EV_P) EV_THROW +{ + time_update (EV_A_ 1e100); +} + +void +ev_suspend (EV_P) EV_THROW +{ + ev_now_update (EV_A); +} + +void +ev_resume (EV_P) EV_THROW +{ + ev_tstamp mn_prev = mn_now; + + ev_now_update (EV_A); + timers_reschedule (EV_A_ mn_now - mn_prev); +#if EV_PERIODIC_ENABLE + /* TODO: really do this? */ + periodics_reschedule (EV_A); +#endif +} + +/*****************************************************************************/ +/* singly-linked list management, used when the expected list length is short */ + +inline_size void +wlist_add (WL *head, WL elem) +{ + elem->next = *head; + *head = elem; +} + +inline_size void +wlist_del (WL *head, WL elem) +{ + while (*head) + { + if (expect_true (*head == elem)) + { + *head = elem->next; + break; + } + + head = &(*head)->next; + } +} + +/* internal, faster, version of ev_clear_pending */ +inline_speed void +clear_pending (EV_P_ W w) +{ + if (w->pending) + { + pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; + w->pending = 0; + } +} + +int +ev_clear_pending (EV_P_ void *w) EV_THROW +{ + W w_ = (W)w; + int pending = w_->pending; + + if (expect_true (pending)) + { + ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; + p->w = (W)&pending_w; + w_->pending = 0; + return p->events; + } + else + return 0; +} + +inline_size void +pri_adjust (EV_P_ W w) +{ + int pri = ev_priority (w); + pri = pri < EV_MINPRI ? EV_MINPRI : pri; + pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; + ev_set_priority (w, pri); +} + +inline_speed void +ev_start (EV_P_ W w, int active) +{ + pri_adjust (EV_A_ w); + w->active = active; + ev_ref (EV_A); +} + +inline_size void +ev_stop (EV_P_ W w) +{ + ev_unref (EV_A); + w->active = 0; +} + +/*****************************************************************************/ + +void noinline +ev_io_start (EV_P_ ev_io *w) EV_THROW +{ + int fd = w->fd; + + if (expect_false (ev_is_active (w))) + return; + + assert (("libev: ev_io_start called with negative fd", fd >= 0)); + assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); + + EV_FREQUENT_CHECK; + + ev_start (EV_A_ (W)w, 1); + array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); + wlist_add (&anfds[fd].head, (WL)w); + + /* common bug, apparently */ + assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); + + fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); + w->events &= ~EV__IOFDSET; + + EV_FREQUENT_CHECK; +} + +void noinline +ev_io_stop (EV_P_ ev_io *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); + + EV_FREQUENT_CHECK; + + wlist_del (&anfds[w->fd].head, (WL)w); + ev_stop (EV_A_ (W)w); + + fd_change (EV_A_ w->fd, EV_ANFD_REIFY); + + EV_FREQUENT_CHECK; +} + +void noinline +ev_timer_start (EV_P_ ev_timer *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + ev_at (w) += mn_now; + + assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); + + EV_FREQUENT_CHECK; + + ++timercnt; + ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); + array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); + ANHE_w (timers [ev_active (w)]) = (WT)w; + ANHE_at_cache (timers [ev_active (w)]); + upheap (timers, ev_active (w)); + + EV_FREQUENT_CHECK; + + /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ +} + +void noinline +ev_timer_stop (EV_P_ ev_timer *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + { + int active = ev_active (w); + + assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); + + --timercnt; + + if (expect_true (active < timercnt + HEAP0)) + { + timers [active] = timers [timercnt + HEAP0]; + adjustheap (timers, timercnt, active); + } + } + + ev_at (w) -= mn_now; + + ev_stop (EV_A_ (W)w); + + EV_FREQUENT_CHECK; +} + +void noinline +ev_timer_again (EV_P_ ev_timer *w) EV_THROW +{ + EV_FREQUENT_CHECK; + + clear_pending (EV_A_ (W)w); + + if (ev_is_active (w)) + { + if (w->repeat) + { + ev_at (w) = mn_now + w->repeat; + ANHE_at_cache (timers [ev_active (w)]); + adjustheap (timers, timercnt, ev_active (w)); + } + else + ev_timer_stop (EV_A_ w); + } + else if (w->repeat) + { + ev_at (w) = w->repeat; + ev_timer_start (EV_A_ w); + } + + EV_FREQUENT_CHECK; +} + +ev_tstamp +ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW +{ + return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); +} + +#if EV_PERIODIC_ENABLE +void noinline +ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + if (w->reschedule_cb) + ev_at (w) = w->reschedule_cb (w, ev_rt_now); + else if (w->interval) + { + assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); + periodic_recalc (EV_A_ w); + } + else + ev_at (w) = w->offset; + + EV_FREQUENT_CHECK; + + ++periodiccnt; + ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); + array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); + ANHE_w (periodics [ev_active (w)]) = (WT)w; + ANHE_at_cache (periodics [ev_active (w)]); + upheap (periodics, ev_active (w)); + + EV_FREQUENT_CHECK; + + /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ +} + +void noinline +ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + { + int active = ev_active (w); + + assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); + + --periodiccnt; + + if (expect_true (active < periodiccnt + HEAP0)) + { + periodics [active] = periodics [periodiccnt + HEAP0]; + adjustheap (periodics, periodiccnt, active); + } + } + + ev_stop (EV_A_ (W)w); + + EV_FREQUENT_CHECK; +} + +void noinline +ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW +{ + /* TODO: use adjustheap and recalculation */ + ev_periodic_stop (EV_A_ w); + ev_periodic_start (EV_A_ w); +} +#endif + +#ifndef SA_RESTART +# define SA_RESTART 0 +#endif + +#if EV_SIGNAL_ENABLE + +void noinline +ev_signal_start (EV_P_ ev_signal *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); + +#if EV_MULTIPLICITY + assert (("libev: a signal must not be attached to two different loops", + !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); + + signals [w->signum - 1].loop = EV_A; + ECB_MEMORY_FENCE_RELEASE; +#endif + + EV_FREQUENT_CHECK; + +#if EV_USE_SIGNALFD + if (sigfd == -2) + { + sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); + if (sigfd < 0 && errno == EINVAL) + sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ + + if (sigfd >= 0) + { + fd_intern (sigfd); /* doing it twice will not hurt */ + + sigemptyset (&sigfd_set); + + ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); + ev_set_priority (&sigfd_w, EV_MAXPRI); + ev_io_start (EV_A_ &sigfd_w); + ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ + } + } + + if (sigfd >= 0) + { + /* TODO: check .head */ + sigaddset (&sigfd_set, w->signum); + sigprocmask (SIG_BLOCK, &sigfd_set, 0); + + signalfd (sigfd, &sigfd_set, 0); + } +#endif + + ev_start (EV_A_ (W)w, 1); + wlist_add (&signals [w->signum - 1].head, (WL)w); + + if (!((WL)w)->next) +# if EV_USE_SIGNALFD + if (sigfd < 0) /*TODO*/ +# endif + { +# ifdef _WIN32 + evpipe_init (EV_A); + + signal (w->signum, ev_sighandler); +# else + struct sigaction sa; + + evpipe_init (EV_A); + + sa.sa_handler = ev_sighandler; + sigfillset (&sa.sa_mask); + sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ + sigaction (w->signum, &sa, 0); + + if (origflags & EVFLAG_NOSIGMASK) + { + sigemptyset (&sa.sa_mask); + sigaddset (&sa.sa_mask, w->signum); + sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); + } +#endif + } + + EV_FREQUENT_CHECK; +} + +void noinline +ev_signal_stop (EV_P_ ev_signal *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + wlist_del (&signals [w->signum - 1].head, (WL)w); + ev_stop (EV_A_ (W)w); + + if (!signals [w->signum - 1].head) + { +#if EV_MULTIPLICITY + signals [w->signum - 1].loop = 0; /* unattach from signal */ +#endif +#if EV_USE_SIGNALFD + if (sigfd >= 0) + { + sigset_t ss; + + sigemptyset (&ss); + sigaddset (&ss, w->signum); + sigdelset (&sigfd_set, w->signum); + + signalfd (sigfd, &sigfd_set, 0); + sigprocmask (SIG_UNBLOCK, &ss, 0); + } + else +#endif + signal (w->signum, SIG_DFL); + } + + EV_FREQUENT_CHECK; +} + +#endif + +#if EV_CHILD_ENABLE + +void +ev_child_start (EV_P_ ev_child *w) EV_THROW +{ +#if EV_MULTIPLICITY + assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); +#endif + if (expect_false (ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + ev_start (EV_A_ (W)w, 1); + wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); + + EV_FREQUENT_CHECK; +} + +void +ev_child_stop (EV_P_ ev_child *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); + ev_stop (EV_A_ (W)w); + + EV_FREQUENT_CHECK; +} + +#endif + +#if EV_STAT_ENABLE + +# ifdef _WIN32 +# undef lstat +# define lstat(a,b) _stati64 (a,b) +# endif + +#define DEF_STAT_INTERVAL 5.0074891 +#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ +#define MIN_STAT_INTERVAL 0.1074891 + +static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); + +#if EV_USE_INOTIFY + +/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ +# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) + +static void noinline +infy_add (EV_P_ ev_stat *w) +{ + w->wd = inotify_add_watch (fs_fd, w->path, + IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY + | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO + | IN_DONT_FOLLOW | IN_MASK_ADD); + + if (w->wd >= 0) + { + struct statfs sfs; + + /* now local changes will be tracked by inotify, but remote changes won't */ + /* unless the filesystem is known to be local, we therefore still poll */ + /* also do poll on <2.6.25, but with normal frequency */ + + if (!fs_2625) + w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; + else if (!statfs (w->path, &sfs) + && (sfs.f_type == 0x1373 /* devfs */ + || sfs.f_type == 0x4006 /* fat */ + || sfs.f_type == 0x4d44 /* msdos */ + || sfs.f_type == 0xEF53 /* ext2/3 */ + || sfs.f_type == 0x72b6 /* jffs2 */ + || sfs.f_type == 0x858458f6 /* ramfs */ + || sfs.f_type == 0x5346544e /* ntfs */ + || sfs.f_type == 0x3153464a /* jfs */ + || sfs.f_type == 0x9123683e /* btrfs */ + || sfs.f_type == 0x52654973 /* reiser3 */ + || sfs.f_type == 0x01021994 /* tmpfs */ + || sfs.f_type == 0x58465342 /* xfs */)) + w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ + else + w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ + } + else + { + /* can't use inotify, continue to stat */ + w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; + + /* if path is not there, monitor some parent directory for speedup hints */ + /* note that exceeding the hardcoded path limit is not a correctness issue, */ + /* but an efficiency issue only */ + if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) + { + char path [4096]; + strcpy (path, w->path); + + do + { + int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF + | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); + + char *pend = strrchr (path, '/'); + + if (!pend || pend == path) + break; + + *pend = 0; + w->wd = inotify_add_watch (fs_fd, path, mask); + } + while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); + } + } + + if (w->wd >= 0) + wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); + + /* now re-arm timer, if required */ + if (ev_is_active (&w->timer)) ev_ref (EV_A); + ev_timer_again (EV_A_ &w->timer); + if (ev_is_active (&w->timer)) ev_unref (EV_A); +} + +static void noinline +infy_del (EV_P_ ev_stat *w) +{ + int slot; + int wd = w->wd; + + if (wd < 0) + return; + + w->wd = -2; + slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); + wlist_del (&fs_hash [slot].head, (WL)w); + + /* remove this watcher, if others are watching it, they will rearm */ + inotify_rm_watch (fs_fd, wd); +} + +static void noinline +infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) +{ + if (slot < 0) + /* overflow, need to check for all hash slots */ + for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) + infy_wd (EV_A_ slot, wd, ev); + else + { + WL w_; + + for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) + { + ev_stat *w = (ev_stat *)w_; + w_ = w_->next; /* lets us remove this watcher and all before it */ + + if (w->wd == wd || wd == -1) + { + if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) + { + wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); + w->wd = -1; + infy_add (EV_A_ w); /* re-add, no matter what */ + } + + stat_timer_cb (EV_A_ &w->timer, 0); + } + } + } +} + +static void +infy_cb (EV_P_ ev_io *w, int revents) +{ + char buf [EV_INOTIFY_BUFSIZE]; + int ofs; + int len = read (fs_fd, buf, sizeof (buf)); + + for (ofs = 0; ofs < len; ) + { + struct inotify_event *ev = (struct inotify_event *)(buf + ofs); + infy_wd (EV_A_ ev->wd, ev->wd, ev); + ofs += sizeof (struct inotify_event) + ev->len; + } +} + +inline_size void ecb_cold +ev_check_2625 (EV_P) +{ + /* kernels < 2.6.25 are borked + * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html + */ + if (ev_linux_version () < 0x020619) + return; + + fs_2625 = 1; +} + +inline_size int +infy_newfd (void) +{ +#if defined IN_CLOEXEC && defined IN_NONBLOCK + int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); + if (fd >= 0) + return fd; +#endif + return inotify_init (); +} + +inline_size void +infy_init (EV_P) +{ + if (fs_fd != -2) + return; + + fs_fd = -1; + + ev_check_2625 (EV_A); + + fs_fd = infy_newfd (); + + if (fs_fd >= 0) + { + fd_intern (fs_fd); + ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); + ev_set_priority (&fs_w, EV_MAXPRI); + ev_io_start (EV_A_ &fs_w); + ev_unref (EV_A); + } +} + +inline_size void +infy_fork (EV_P) +{ + int slot; + + if (fs_fd < 0) + return; + + ev_ref (EV_A); + ev_io_stop (EV_A_ &fs_w); + close (fs_fd); + fs_fd = infy_newfd (); + + if (fs_fd >= 0) + { + fd_intern (fs_fd); + ev_io_set (&fs_w, fs_fd, EV_READ); + ev_io_start (EV_A_ &fs_w); + ev_unref (EV_A); + } + + for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) + { + WL w_ = fs_hash [slot].head; + fs_hash [slot].head = 0; + + while (w_) + { + ev_stat *w = (ev_stat *)w_; + w_ = w_->next; /* lets us add this watcher */ + + w->wd = -1; + + if (fs_fd >= 0) + infy_add (EV_A_ w); /* re-add, no matter what */ + else + { + w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; + if (ev_is_active (&w->timer)) ev_ref (EV_A); + ev_timer_again (EV_A_ &w->timer); + if (ev_is_active (&w->timer)) ev_unref (EV_A); + } + } + } +} + +#endif + +#ifdef _WIN32 +# define EV_LSTAT(p,b) _stati64 (p, b) +#else +# define EV_LSTAT(p,b) lstat (p, b) +#endif + +void +ev_stat_stat (EV_P_ ev_stat *w) EV_THROW +{ + if (lstat (w->path, &w->attr) < 0) + w->attr.st_nlink = 0; + else if (!w->attr.st_nlink) + w->attr.st_nlink = 1; +} + +static void noinline +stat_timer_cb (EV_P_ ev_timer *w_, int revents) +{ + ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); + + ev_statdata prev = w->attr; + ev_stat_stat (EV_A_ w); + + /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ + if ( + prev.st_dev != w->attr.st_dev + || prev.st_ino != w->attr.st_ino + || prev.st_mode != w->attr.st_mode + || prev.st_nlink != w->attr.st_nlink + || prev.st_uid != w->attr.st_uid + || prev.st_gid != w->attr.st_gid + || prev.st_rdev != w->attr.st_rdev + || prev.st_size != w->attr.st_size + || prev.st_atime != w->attr.st_atime + || prev.st_mtime != w->attr.st_mtime + || prev.st_ctime != w->attr.st_ctime + ) { + /* we only update w->prev on actual differences */ + /* in case we test more often than invoke the callback, */ + /* to ensure that prev is always different to attr */ + w->prev = prev; + + #if EV_USE_INOTIFY + if (fs_fd >= 0) + { + infy_del (EV_A_ w); + infy_add (EV_A_ w); + ev_stat_stat (EV_A_ w); /* avoid race... */ + } + #endif + + ev_feed_event (EV_A_ w, EV_STAT); + } +} + +void +ev_stat_start (EV_P_ ev_stat *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + ev_stat_stat (EV_A_ w); + + if (w->interval < MIN_STAT_INTERVAL && w->interval) + w->interval = MIN_STAT_INTERVAL; + + ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); + ev_set_priority (&w->timer, ev_priority (w)); + +#if EV_USE_INOTIFY + infy_init (EV_A); + + if (fs_fd >= 0) + infy_add (EV_A_ w); + else +#endif + { + ev_timer_again (EV_A_ &w->timer); + ev_unref (EV_A); + } + + ev_start (EV_A_ (W)w, 1); + + EV_FREQUENT_CHECK; +} + +void +ev_stat_stop (EV_P_ ev_stat *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + +#if EV_USE_INOTIFY + infy_del (EV_A_ w); +#endif + + if (ev_is_active (&w->timer)) + { + ev_ref (EV_A); + ev_timer_stop (EV_A_ &w->timer); + } + + ev_stop (EV_A_ (W)w); + + EV_FREQUENT_CHECK; +} +#endif + +#if EV_IDLE_ENABLE +void +ev_idle_start (EV_P_ ev_idle *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + pri_adjust (EV_A_ (W)w); + + EV_FREQUENT_CHECK; + + { + int active = ++idlecnt [ABSPRI (w)]; + + ++idleall; + ev_start (EV_A_ (W)w, active); + + array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); + idles [ABSPRI (w)][active - 1] = w; + } + + EV_FREQUENT_CHECK; +} + +void +ev_idle_stop (EV_P_ ev_idle *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + { + int active = ev_active (w); + + idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; + ev_active (idles [ABSPRI (w)][active - 1]) = active; + + ev_stop (EV_A_ (W)w); + --idleall; + } + + EV_FREQUENT_CHECK; +} +#endif + +#if EV_PREPARE_ENABLE +void +ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + ev_start (EV_A_ (W)w, ++preparecnt); + array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); + prepares [preparecnt - 1] = w; + + EV_FREQUENT_CHECK; +} + +void +ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + { + int active = ev_active (w); + + prepares [active - 1] = prepares [--preparecnt]; + ev_active (prepares [active - 1]) = active; + } + + ev_stop (EV_A_ (W)w); + + EV_FREQUENT_CHECK; +} +#endif + +#if EV_CHECK_ENABLE +void +ev_check_start (EV_P_ ev_check *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + ev_start (EV_A_ (W)w, ++checkcnt); + array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); + checks [checkcnt - 1] = w; + + EV_FREQUENT_CHECK; +} + +void +ev_check_stop (EV_P_ ev_check *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + { + int active = ev_active (w); + + checks [active - 1] = checks [--checkcnt]; + ev_active (checks [active - 1]) = active; + } + + ev_stop (EV_A_ (W)w); + + EV_FREQUENT_CHECK; +} +#endif + +#if EV_EMBED_ENABLE +void noinline +ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW +{ + ev_run (w->other, EVRUN_NOWAIT); +} + +static void +embed_io_cb (EV_P_ ev_io *io, int revents) +{ + ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); + + if (ev_cb (w)) + ev_feed_event (EV_A_ (W)w, EV_EMBED); + else + ev_run (w->other, EVRUN_NOWAIT); +} + +static void +embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) +{ + ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); + + { + EV_P = w->other; + + while (fdchangecnt) + { + fd_reify (EV_A); + ev_run (EV_A_ EVRUN_NOWAIT); + } + } +} + +static void +embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) +{ + ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); + + ev_embed_stop (EV_A_ w); + + { + EV_P = w->other; + + ev_loop_fork (EV_A); + ev_run (EV_A_ EVRUN_NOWAIT); + } + + ev_embed_start (EV_A_ w); +} + +#if 0 +static void +embed_idle_cb (EV_P_ ev_idle *idle, int revents) +{ + ev_idle_stop (EV_A_ idle); +} +#endif + +void +ev_embed_start (EV_P_ ev_embed *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + { + EV_P = w->other; + assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); + ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); + } + + EV_FREQUENT_CHECK; + + ev_set_priority (&w->io, ev_priority (w)); + ev_io_start (EV_A_ &w->io); + + ev_prepare_init (&w->prepare, embed_prepare_cb); + ev_set_priority (&w->prepare, EV_MINPRI); + ev_prepare_start (EV_A_ &w->prepare); + + ev_fork_init (&w->fork, embed_fork_cb); + ev_fork_start (EV_A_ &w->fork); + + /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ + + ev_start (EV_A_ (W)w, 1); + + EV_FREQUENT_CHECK; +} + +void +ev_embed_stop (EV_P_ ev_embed *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + ev_io_stop (EV_A_ &w->io); + ev_prepare_stop (EV_A_ &w->prepare); + ev_fork_stop (EV_A_ &w->fork); + + ev_stop (EV_A_ (W)w); + + EV_FREQUENT_CHECK; +} +#endif + +#if EV_FORK_ENABLE +void +ev_fork_start (EV_P_ ev_fork *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + ev_start (EV_A_ (W)w, ++forkcnt); + array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); + forks [forkcnt - 1] = w; + + EV_FREQUENT_CHECK; +} + +void +ev_fork_stop (EV_P_ ev_fork *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + { + int active = ev_active (w); + + forks [active - 1] = forks [--forkcnt]; + ev_active (forks [active - 1]) = active; + } + + ev_stop (EV_A_ (W)w); + + EV_FREQUENT_CHECK; +} +#endif + +#if EV_CLEANUP_ENABLE +void +ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + ev_start (EV_A_ (W)w, ++cleanupcnt); + array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); + cleanups [cleanupcnt - 1] = w; + + /* cleanup watchers should never keep a refcount on the loop */ + ev_unref (EV_A); + EV_FREQUENT_CHECK; +} + +void +ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + ev_ref (EV_A); + + { + int active = ev_active (w); + + cleanups [active - 1] = cleanups [--cleanupcnt]; + ev_active (cleanups [active - 1]) = active; + } + + ev_stop (EV_A_ (W)w); + + EV_FREQUENT_CHECK; +} +#endif + +#if EV_ASYNC_ENABLE +void +ev_async_start (EV_P_ ev_async *w) EV_THROW +{ + if (expect_false (ev_is_active (w))) + return; + + w->sent = 0; + + evpipe_init (EV_A); + + EV_FREQUENT_CHECK; + + ev_start (EV_A_ (W)w, ++asynccnt); + array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); + asyncs [asynccnt - 1] = w; + + EV_FREQUENT_CHECK; +} + +void +ev_async_stop (EV_P_ ev_async *w) EV_THROW +{ + clear_pending (EV_A_ (W)w); + if (expect_false (!ev_is_active (w))) + return; + + EV_FREQUENT_CHECK; + + { + int active = ev_active (w); + + asyncs [active - 1] = asyncs [--asynccnt]; + ev_active (asyncs [active - 1]) = active; + } + + ev_stop (EV_A_ (W)w); + + EV_FREQUENT_CHECK; +} + +void +ev_async_send (EV_P_ ev_async *w) EV_THROW +{ + w->sent = 1; + evpipe_write (EV_A_ &async_pending); +} +#endif + +/*****************************************************************************/ + +struct ev_once +{ + ev_io io; + ev_timer to; + void (*cb)(int revents, void *arg); + void *arg; +}; + +static void +once_cb (EV_P_ struct ev_once *once, int revents) +{ + void (*cb)(int revents, void *arg) = once->cb; + void *arg = once->arg; + + ev_io_stop (EV_A_ &once->io); + ev_timer_stop (EV_A_ &once->to); + ev_free (once); + + cb (revents, arg); +} + +static void +once_cb_io (EV_P_ ev_io *w, int revents) +{ + struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); + + once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); +} + +static void +once_cb_to (EV_P_ ev_timer *w, int revents) +{ + struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); + + once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); +} + +void +ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW +{ + struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); + + if (expect_false (!once)) + { + cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); + return; + } + + once->cb = cb; + once->arg = arg; + + ev_init (&once->io, once_cb_io); + if (fd >= 0) + { + ev_io_set (&once->io, fd, events); + ev_io_start (EV_A_ &once->io); + } + + ev_init (&once->to, once_cb_to); + if (timeout >= 0.) + { + ev_timer_set (&once->to, timeout, 0.); + ev_timer_start (EV_A_ &once->to); + } +} + +/*****************************************************************************/ + +#if EV_WALK_ENABLE +void ecb_cold +ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW +{ + int i, j; + ev_watcher_list *wl, *wn; + + if (types & (EV_IO | EV_EMBED)) + for (i = 0; i < anfdmax; ++i) + for (wl = anfds [i].head; wl; ) + { + wn = wl->next; + +#if EV_EMBED_ENABLE + if (ev_cb ((ev_io *)wl) == embed_io_cb) + { + if (types & EV_EMBED) + cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); + } + else +#endif +#if EV_USE_INOTIFY + if (ev_cb ((ev_io *)wl) == infy_cb) + ; + else +#endif + if ((ev_io *)wl != &pipe_w) + if (types & EV_IO) + cb (EV_A_ EV_IO, wl); + + wl = wn; + } + + if (types & (EV_TIMER | EV_STAT)) + for (i = timercnt + HEAP0; i-- > HEAP0; ) +#if EV_STAT_ENABLE + /*TODO: timer is not always active*/ + if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) + { + if (types & EV_STAT) + cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); + } + else +#endif + if (types & EV_TIMER) + cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); + +#if EV_PERIODIC_ENABLE + if (types & EV_PERIODIC) + for (i = periodiccnt + HEAP0; i-- > HEAP0; ) + cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); +#endif + +#if EV_IDLE_ENABLE + if (types & EV_IDLE) + for (j = NUMPRI; j--; ) + for (i = idlecnt [j]; i--; ) + cb (EV_A_ EV_IDLE, idles [j][i]); +#endif + +#if EV_FORK_ENABLE + if (types & EV_FORK) + for (i = forkcnt; i--; ) + if (ev_cb (forks [i]) != embed_fork_cb) + cb (EV_A_ EV_FORK, forks [i]); +#endif + +#if EV_ASYNC_ENABLE + if (types & EV_ASYNC) + for (i = asynccnt; i--; ) + cb (EV_A_ EV_ASYNC, asyncs [i]); +#endif + +#if EV_PREPARE_ENABLE + if (types & EV_PREPARE) + for (i = preparecnt; i--; ) +# if EV_EMBED_ENABLE + if (ev_cb (prepares [i]) != embed_prepare_cb) +# endif + cb (EV_A_ EV_PREPARE, prepares [i]); +#endif + +#if EV_CHECK_ENABLE + if (types & EV_CHECK) + for (i = checkcnt; i--; ) + cb (EV_A_ EV_CHECK, checks [i]); +#endif + +#if EV_SIGNAL_ENABLE + if (types & EV_SIGNAL) + for (i = 0; i < EV_NSIG - 1; ++i) + for (wl = signals [i].head; wl; ) + { + wn = wl->next; + cb (EV_A_ EV_SIGNAL, wl); + wl = wn; + } +#endif + +#if EV_CHILD_ENABLE + if (types & EV_CHILD) + for (i = (EV_PID_HASHSIZE); i--; ) + for (wl = childs [i]; wl; ) + { + wn = wl->next; + cb (EV_A_ EV_CHILD, wl); + wl = wn; + } +#endif +/* EV_STAT 0x00001000 /* stat data changed */ +/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ +} +#endif + +#if EV_MULTIPLICITY + #include "ev_wrap.h" +#endif + diff --git a/shadowsocksr-libev/src/libev/ev.h b/shadowsocksr-libev/src/libev/ev.h new file mode 100644 index 000000000..38f62d82e --- /dev/null +++ b/shadowsocksr-libev/src/libev/ev.h @@ -0,0 +1,854 @@ +/* + * libev native API header + * + * Copyright (c) 2007,2008,2009,2010,2011,2012,2015 Marc Alexander Lehmann + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modifica- + * tion, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- + * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- + * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- + * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License ("GPL") version 2 or any later version, + * in which case the provisions of the GPL are applicable instead of + * the above. If you wish to allow the use of your version of this file + * only under the terms of the GPL and not to allow others to use your + * version of this file under the BSD license, indicate your decision + * by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL. If you do not delete the + * provisions above, a recipient may use your version of this file under + * either the BSD or the GPL. + */ + +#ifndef EV_H_ +#define EV_H_ + +#ifdef __cplusplus +# define EV_CPP(x) x +# if __cplusplus >= 201103L +# define EV_THROW noexcept +# else +# define EV_THROW throw () +# endif +#else +# define EV_CPP(x) +# define EV_THROW +#endif + +EV_CPP(extern "C" {) + +/*****************************************************************************/ + +/* pre-4.0 compatibility */ +#ifndef EV_COMPAT3 +# define EV_COMPAT3 1 +#endif + +#ifndef EV_FEATURES +# if defined __OPTIMIZE_SIZE__ +# define EV_FEATURES 0x7c +# else +# define EV_FEATURES 0x7f +# endif +#endif + +#define EV_FEATURE_CODE ((EV_FEATURES) & 1) +#define EV_FEATURE_DATA ((EV_FEATURES) & 2) +#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) +#define EV_FEATURE_API ((EV_FEATURES) & 8) +#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16) +#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32) +#define EV_FEATURE_OS ((EV_FEATURES) & 64) + +/* these priorities are inclusive, higher priorities will be invoked earlier */ +#ifndef EV_MINPRI +# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0) +#endif +#ifndef EV_MAXPRI +# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0) +#endif + +#ifndef EV_MULTIPLICITY +# define EV_MULTIPLICITY EV_FEATURE_CONFIG +#endif + +#ifndef EV_PERIODIC_ENABLE +# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS +#endif + +#ifndef EV_STAT_ENABLE +# define EV_STAT_ENABLE EV_FEATURE_WATCHERS +#endif + +#ifndef EV_PREPARE_ENABLE +# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS +#endif + +#ifndef EV_CHECK_ENABLE +# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS +#endif + +#ifndef EV_IDLE_ENABLE +# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS +#endif + +#ifndef EV_FORK_ENABLE +# define EV_FORK_ENABLE EV_FEATURE_WATCHERS +#endif + +#ifndef EV_CLEANUP_ENABLE +# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS +#endif + +#ifndef EV_SIGNAL_ENABLE +# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS +#endif + +#ifndef EV_CHILD_ENABLE +# ifdef _WIN32 +# define EV_CHILD_ENABLE 0 +# else +# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS +#endif +#endif + +#ifndef EV_ASYNC_ENABLE +# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS +#endif + +#ifndef EV_EMBED_ENABLE +# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS +#endif + +#ifndef EV_WALK_ENABLE +# define EV_WALK_ENABLE 0 /* not yet */ +#endif + +/*****************************************************************************/ + +#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE +# undef EV_SIGNAL_ENABLE +# define EV_SIGNAL_ENABLE 1 +#endif + +/*****************************************************************************/ + +typedef double ev_tstamp; + +#include /* for memmove */ + +#ifndef EV_ATOMIC_T +# include +# define EV_ATOMIC_T sig_atomic_t volatile +#endif + +#if EV_STAT_ENABLE +# ifdef _WIN32 +# include +# include +# endif +# include +#endif + +/* support multiple event loops? */ +#if EV_MULTIPLICITY +struct ev_loop; +# define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ +# define EV_P_ EV_P, /* a loop as first of multiple parameters */ +# define EV_A loop /* a loop as sole argument to a function call */ +# define EV_A_ EV_A, /* a loop as first of multiple arguments */ +# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */ +# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ +# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ +# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ +#else +# define EV_P void +# define EV_P_ +# define EV_A +# define EV_A_ +# define EV_DEFAULT +# define EV_DEFAULT_ +# define EV_DEFAULT_UC +# define EV_DEFAULT_UC_ +# undef EV_EMBED_ENABLE +#endif + +/* EV_INLINE is used for functions in header files */ +#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 +# define EV_INLINE static inline +#else +# define EV_INLINE static +#endif + +#ifdef EV_API_STATIC +# define EV_API_DECL static +#else +# define EV_API_DECL extern +#endif + +/* EV_PROTOTYPES can be used to switch of prototype declarations */ +#ifndef EV_PROTOTYPES +# define EV_PROTOTYPES 1 +#endif + +/*****************************************************************************/ + +#define EV_VERSION_MAJOR 4 +#define EV_VERSION_MINOR 22 + +/* eventmask, revents, events... */ +enum { + EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */ + EV_NONE = 0x00, /* no events */ + EV_READ = 0x01, /* ev_io detected read will not block */ + EV_WRITE = 0x02, /* ev_io detected write will not block */ + EV__IOFDSET = 0x80, /* internal use only */ + EV_IO = EV_READ, /* alias for type-detection */ + EV_TIMER = 0x00000100, /* timer timed out */ +#if EV_COMPAT3 + EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ +#endif + EV_PERIODIC = 0x00000200, /* periodic timer timed out */ + EV_SIGNAL = 0x00000400, /* signal was received */ + EV_CHILD = 0x00000800, /* child/pid had status change */ + EV_STAT = 0x00001000, /* stat data changed */ + EV_IDLE = 0x00002000, /* event loop is idling */ + EV_PREPARE = 0x00004000, /* event loop about to poll */ + EV_CHECK = 0x00008000, /* event loop finished poll */ + EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ + EV_FORK = 0x00020000, /* event loop resumed in child */ + EV_CLEANUP = 0x00040000, /* event loop resumed in child */ + EV_ASYNC = 0x00080000, /* async intra-loop signal */ + EV_CUSTOM = 0x01000000, /* for use by user code */ + EV_ERROR = (int)0x80000000 /* sent when an error occurs */ +}; + +/* can be used to add custom fields to all watchers, while losing binary compatibility */ +#ifndef EV_COMMON +# define EV_COMMON void *data; +#endif + +#ifndef EV_CB_DECLARE +# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); +#endif +#ifndef EV_CB_INVOKE +# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) +#endif + +/* not official, do not use */ +#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents) + +/* + * struct member types: + * private: you may look at them, but not change them, + * and they might not mean anything to you. + * ro: can be read anytime, but only changed when the watcher isn't active. + * rw: can be read and modified anytime, even when the watcher is active. + * + * some internal details that might be helpful for debugging: + * + * active is either 0, which means the watcher is not active, + * or the array index of the watcher (periodics, timers) + * or the array index + 1 (most other watchers) + * or simply 1 for watchers that aren't in some array. + * pending is either 0, in which case the watcher isn't, + * or the array index + 1 in the pendings array. + */ + +#if EV_MINPRI == EV_MAXPRI +# define EV_DECL_PRIORITY +#elif !defined (EV_DECL_PRIORITY) +# define EV_DECL_PRIORITY int priority; +#endif + +/* shared by all watchers */ +#define EV_WATCHER(type) \ + int active; /* private */ \ + int pending; /* private */ \ + EV_DECL_PRIORITY /* private */ \ + EV_COMMON /* rw */ \ + EV_CB_DECLARE (type) /* private */ + +#define EV_WATCHER_LIST(type) \ + EV_WATCHER (type) \ + struct ev_watcher_list *next; /* private */ + +#define EV_WATCHER_TIME(type) \ + EV_WATCHER (type) \ + ev_tstamp at; /* private */ + +/* base class, nothing to see here unless you subclass */ +typedef struct ev_watcher +{ + EV_WATCHER (ev_watcher) +} ev_watcher; + +/* base class, nothing to see here unless you subclass */ +typedef struct ev_watcher_list +{ + EV_WATCHER_LIST (ev_watcher_list) +} ev_watcher_list; + +/* base class, nothing to see here unless you subclass */ +typedef struct ev_watcher_time +{ + EV_WATCHER_TIME (ev_watcher_time) +} ev_watcher_time; + +/* invoked when fd is either EV_READable or EV_WRITEable */ +/* revent EV_READ, EV_WRITE */ +typedef struct ev_io +{ + EV_WATCHER_LIST (ev_io) + + int fd; /* ro */ + int events; /* ro */ +} ev_io; + +/* invoked after a specific time, repeatable (based on monotonic clock) */ +/* revent EV_TIMEOUT */ +typedef struct ev_timer +{ + EV_WATCHER_TIME (ev_timer) + + ev_tstamp repeat; /* rw */ +} ev_timer; + +/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ +/* revent EV_PERIODIC */ +typedef struct ev_periodic +{ + EV_WATCHER_TIME (ev_periodic) + + ev_tstamp offset; /* rw */ + ev_tstamp interval; /* rw */ + ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) EV_THROW; /* rw */ +} ev_periodic; + +/* invoked when the given signal has been received */ +/* revent EV_SIGNAL */ +typedef struct ev_signal +{ + EV_WATCHER_LIST (ev_signal) + + int signum; /* ro */ +} ev_signal; + +/* invoked when sigchld is received and waitpid indicates the given pid */ +/* revent EV_CHILD */ +/* does not support priorities */ +typedef struct ev_child +{ + EV_WATCHER_LIST (ev_child) + + int flags; /* private */ + int pid; /* ro */ + int rpid; /* rw, holds the received pid */ + int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ +} ev_child; + +#if EV_STAT_ENABLE +/* st_nlink = 0 means missing file or other error */ +# ifdef _WIN32 +typedef struct _stati64 ev_statdata; +# else +typedef struct stat ev_statdata; +# endif + +/* invoked each time the stat data changes for a given path */ +/* revent EV_STAT */ +typedef struct ev_stat +{ + EV_WATCHER_LIST (ev_stat) + + ev_timer timer; /* private */ + ev_tstamp interval; /* ro */ + const char *path; /* ro */ + ev_statdata prev; /* ro */ + ev_statdata attr; /* ro */ + + int wd; /* wd for inotify, fd for kqueue */ +} ev_stat; +#endif + +#if EV_IDLE_ENABLE +/* invoked when the nothing else needs to be done, keeps the process from blocking */ +/* revent EV_IDLE */ +typedef struct ev_idle +{ + EV_WATCHER (ev_idle) +} ev_idle; +#endif + +/* invoked for each run of the mainloop, just before the blocking call */ +/* you can still change events in any way you like */ +/* revent EV_PREPARE */ +typedef struct ev_prepare +{ + EV_WATCHER (ev_prepare) +} ev_prepare; + +/* invoked for each run of the mainloop, just after the blocking call */ +/* revent EV_CHECK */ +typedef struct ev_check +{ + EV_WATCHER (ev_check) +} ev_check; + +#if EV_FORK_ENABLE +/* the callback gets invoked before check in the child process when a fork was detected */ +/* revent EV_FORK */ +typedef struct ev_fork +{ + EV_WATCHER (ev_fork) +} ev_fork; +#endif + +#if EV_CLEANUP_ENABLE +/* is invoked just before the loop gets destroyed */ +/* revent EV_CLEANUP */ +typedef struct ev_cleanup +{ + EV_WATCHER (ev_cleanup) +} ev_cleanup; +#endif + +#if EV_EMBED_ENABLE +/* used to embed an event loop inside another */ +/* the callback gets invoked when the event loop has handled events, and can be 0 */ +typedef struct ev_embed +{ + EV_WATCHER (ev_embed) + + struct ev_loop *other; /* ro */ + ev_io io; /* private */ + ev_prepare prepare; /* private */ + ev_check check; /* unused */ + ev_timer timer; /* unused */ + ev_periodic periodic; /* unused */ + ev_idle idle; /* unused */ + ev_fork fork; /* private */ +#if EV_CLEANUP_ENABLE + ev_cleanup cleanup; /* unused */ +#endif +} ev_embed; +#endif + +#if EV_ASYNC_ENABLE +/* invoked when somebody calls ev_async_send on the watcher */ +/* revent EV_ASYNC */ +typedef struct ev_async +{ + EV_WATCHER (ev_async) + + EV_ATOMIC_T sent; /* private */ +} ev_async; + +# define ev_async_pending(w) (+(w)->sent) +#endif + +/* the presence of this union forces similar struct layout */ +union ev_any_watcher +{ + struct ev_watcher w; + struct ev_watcher_list wl; + + struct ev_io io; + struct ev_timer timer; + struct ev_periodic periodic; + struct ev_signal signal; + struct ev_child child; +#if EV_STAT_ENABLE + struct ev_stat stat; +#endif +#if EV_IDLE_ENABLE + struct ev_idle idle; +#endif + struct ev_prepare prepare; + struct ev_check check; +#if EV_FORK_ENABLE + struct ev_fork fork; +#endif +#if EV_CLEANUP_ENABLE + struct ev_cleanup cleanup; +#endif +#if EV_EMBED_ENABLE + struct ev_embed embed; +#endif +#if EV_ASYNC_ENABLE + struct ev_async async; +#endif +}; + +/* flag bits for ev_default_loop and ev_loop_new */ +enum { + /* the default */ + EVFLAG_AUTO = 0x00000000U, /* not quite a mask */ + /* flag bits */ + EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */ + EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */ + /* debugging/feature disable */ + EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ +#if EV_COMPAT3 + EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ +#endif + EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */ + EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */ +}; + +/* method bits to be ored together */ +enum { + EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ + EVBACKEND_POLL = 0x00000002U, /* !win */ + EVBACKEND_EPOLL = 0x00000004U, /* linux */ + EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ + EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ + EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ + EVBACKEND_ALL = 0x0000003FU, /* all known backends */ + EVBACKEND_MASK = 0x0000FFFFU /* all future backends */ +}; + +#if EV_PROTOTYPES +EV_API_DECL int ev_version_major (void) EV_THROW; +EV_API_DECL int ev_version_minor (void) EV_THROW; + +EV_API_DECL unsigned int ev_supported_backends (void) EV_THROW; +EV_API_DECL unsigned int ev_recommended_backends (void) EV_THROW; +EV_API_DECL unsigned int ev_embeddable_backends (void) EV_THROW; + +EV_API_DECL ev_tstamp ev_time (void) EV_THROW; +EV_API_DECL void ev_sleep (ev_tstamp delay) EV_THROW; /* sleep for a while */ + +/* Sets the allocation function to use, works like realloc. + * It is used to allocate and free memory. + * If it returns zero when memory needs to be allocated, the library might abort + * or take some potentially destructive action. + * The default is your system realloc function. + */ +EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW; + +/* set the callback function to call on a + * retryable syscall error + * (such as failed select, poll, epoll_wait) + */ +EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW; + +#if EV_MULTIPLICITY + +/* the default loop is the only one that handles signals and child watchers */ +/* you can call this as often as you like */ +EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_THROW; + +#ifdef EV_API_STATIC +EV_API_DECL struct ev_loop *ev_default_loop_ptr; +#endif + +EV_INLINE struct ev_loop * +ev_default_loop_uc_ (void) EV_THROW +{ + extern struct ev_loop *ev_default_loop_ptr; + + return ev_default_loop_ptr; +} + +EV_INLINE int +ev_is_default_loop (EV_P) EV_THROW +{ + return EV_A == EV_DEFAULT_UC; +} + +/* create and destroy alternative loops that don't handle signals */ +EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_THROW; + +EV_API_DECL ev_tstamp ev_now (EV_P) EV_THROW; /* time w.r.t. timers and the eventloop, updated after each poll */ + +#else + +EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_THROW; /* returns true when successful */ + +EV_API_DECL ev_tstamp ev_rt_now; + +EV_INLINE ev_tstamp +ev_now (void) EV_THROW +{ + return ev_rt_now; +} + +/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */ +EV_INLINE int +ev_is_default_loop (void) EV_THROW +{ + return 1; +} + +#endif /* multiplicity */ + +/* destroy event loops, also works for the default loop */ +EV_API_DECL void ev_loop_destroy (EV_P); + +/* this needs to be called after fork, to duplicate the loop */ +/* when you want to re-use it in the child */ +/* you can call it in either the parent or the child */ +/* you can actually call it at any time, anywhere :) */ +EV_API_DECL void ev_loop_fork (EV_P) EV_THROW; + +EV_API_DECL unsigned int ev_backend (EV_P) EV_THROW; /* backend in use by loop */ + +EV_API_DECL void ev_now_update (EV_P) EV_THROW; /* update event loop time */ + +#if EV_WALK_ENABLE +/* walk (almost) all watchers in the loop of a given type, invoking the */ +/* callback on every such watcher. The callback might stop the watcher, */ +/* but do nothing else with the loop */ +EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW; +#endif + +#endif /* prototypes */ + +/* ev_run flags values */ +enum { + EVRUN_NOWAIT = 1, /* do not block/wait */ + EVRUN_ONCE = 2 /* block *once* only */ +}; + +/* ev_break how values */ +enum { + EVBREAK_CANCEL = 0, /* undo unloop */ + EVBREAK_ONE = 1, /* unloop once */ + EVBREAK_ALL = 2 /* unloop all loops */ +}; + +#if EV_PROTOTYPES +EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0)); +EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)) EV_THROW; /* break out of the loop */ + +/* + * ref/unref can be used to add or remove a refcount on the mainloop. every watcher + * keeps one reference. if you have a long-running watcher you never unregister that + * should not keep ev_loop from running, unref() after starting, and ref() before stopping. + */ +EV_API_DECL void ev_ref (EV_P) EV_THROW; +EV_API_DECL void ev_unref (EV_P) EV_THROW; + +/* + * convenience function, wait for a single event, without registering an event watcher + * if timeout is < 0, do wait indefinitely + */ +EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW; + +# if EV_FEATURE_API +EV_API_DECL unsigned int ev_iteration (EV_P) EV_THROW; /* number of loop iterations */ +EV_API_DECL unsigned int ev_depth (EV_P) EV_THROW; /* #ev_loop enters - #ev_loop leaves */ +EV_API_DECL void ev_verify (EV_P) EV_THROW; /* abort if loop data corrupted */ + +EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW; /* sleep at least this time, default 0 */ +EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW; /* sleep at least this time, default 0 */ + +/* advanced stuff for threading etc. support, see docs */ +EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_THROW; +EV_API_DECL void *ev_userdata (EV_P) EV_THROW; +typedef void (*ev_loop_callback)(EV_P); +EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW; +/* C++ doesn't allow the use of the ev_loop_callback typedef here, so we need to spell it out */ +EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW; + +EV_API_DECL unsigned int ev_pending_count (EV_P) EV_THROW; /* number of pending events, if any */ +EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */ + +/* + * stop/start the timer handling. + */ +EV_API_DECL void ev_suspend (EV_P) EV_THROW; +EV_API_DECL void ev_resume (EV_P) EV_THROW; +#endif + +#endif + +/* these may evaluate ev multiple times, and the other arguments at most once */ +/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ +#define ev_init(ev,cb_) do { \ + ((ev_watcher *)(void *)(ev))->active = \ + ((ev_watcher *)(void *)(ev))->pending = 0; \ + ev_set_priority ((ev), 0); \ + ev_set_cb ((ev), cb_); \ +} while (0) + +#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) +#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) +#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0) +#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) +#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) +#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) +#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ +#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ +#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ +#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) +#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ +#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */ +#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ + +#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) +#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) +#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) +#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) +#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0) +#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) +#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) +#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) +#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) +#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) +#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) +#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0) +#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) + +#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ +#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ + +#define ev_cb_(ev) (ev)->cb /* rw */ +#define ev_cb(ev) (memmove (&ev_cb_ (ev), &((ev_watcher *)(ev))->cb, sizeof (ev_cb_ (ev))), (ev)->cb) + +#if EV_MINPRI == EV_MAXPRI +# define ev_priority(ev) ((ev), EV_MINPRI) +# define ev_set_priority(ev,pri) ((ev), (pri)) +#else +# define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority)) +# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) +#endif + +#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) + +#ifndef ev_set_cb +# define ev_set_cb(ev,cb_) (ev_cb_ (ev) = (cb_), memmove (&((ev_watcher *)(ev))->cb, &ev_cb_ (ev), sizeof (ev_cb_ (ev)))) +#endif + +/* stopping (enabling, adding) a watcher does nothing if it is already running */ +/* stopping (disabling, deleting) a watcher does nothing unless it's already running */ +#if EV_PROTOTYPES + +/* feeds an event into a watcher as if the event actually occurred */ +/* accepts any ev_watcher type */ +EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_THROW; +EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW; +#if EV_SIGNAL_ENABLE +EV_API_DECL void ev_feed_signal (int signum) EV_THROW; +EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_THROW; +#endif +EV_API_DECL void ev_invoke (EV_P_ void *w, int revents); +EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_THROW; + +EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_THROW; +EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_THROW; + +EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_THROW; +EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_THROW; +/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ +EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_THROW; +/* return remaining time */ +EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW; + +#if EV_PERIODIC_ENABLE +EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW; +EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW; +EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW; +#endif + +/* only supported in the default loop */ +#if EV_SIGNAL_ENABLE +EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_THROW; +EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_THROW; +#endif + +/* only supported in the default loop */ +# if EV_CHILD_ENABLE +EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_THROW; +EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_THROW; +# endif + +# if EV_STAT_ENABLE +EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_THROW; +EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_THROW; +EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_THROW; +# endif + +# if EV_IDLE_ENABLE +EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_THROW; +EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_THROW; +# endif + +#if EV_PREPARE_ENABLE +EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW; +EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW; +#endif + +#if EV_CHECK_ENABLE +EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_THROW; +EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_THROW; +#endif + +# if EV_FORK_ENABLE +EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_THROW; +EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_THROW; +# endif + +# if EV_CLEANUP_ENABLE +EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW; +EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW; +# endif + +# if EV_EMBED_ENABLE +/* only supported when loop to be embedded is in fact embeddable */ +EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_THROW; +EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_THROW; +EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW; +# endif + +# if EV_ASYNC_ENABLE +EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_THROW; +EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_THROW; +EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_THROW; +# endif + +#if EV_COMPAT3 + #define EVLOOP_NONBLOCK EVRUN_NOWAIT + #define EVLOOP_ONESHOT EVRUN_ONCE + #define EVUNLOOP_CANCEL EVBREAK_CANCEL + #define EVUNLOOP_ONE EVBREAK_ONE + #define EVUNLOOP_ALL EVBREAK_ALL + #if EV_PROTOTYPES + EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } + EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } + EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); } + EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); } + #if EV_FEATURE_API + EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); } + EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); } + EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } + #endif + #endif +#else + typedef struct ev_loop ev_loop; +#endif + +#endif + +EV_CPP(}) + +#endif + diff --git a/shadowsocksr-libev/src/libev/ev.pod b/shadowsocksr-libev/src/libev/ev.pod new file mode 100644 index 000000000..e6473ca70 --- /dev/null +++ b/shadowsocksr-libev/src/libev/ev.pod @@ -0,0 +1,5564 @@ +=encoding utf-8 + +=head1 NAME + +libev - a high performance full-featured event loop written in C + +=head1 SYNOPSIS + + #include + +=head2 EXAMPLE PROGRAM + + // a single header file is required + #include + + #include // for puts + + // every watcher type has its own typedef'd struct + // with the name ev_TYPE + ev_io stdin_watcher; + ev_timer timeout_watcher; + + // all watcher callbacks have a similar signature + // this callback is called when data is readable on stdin + static void + stdin_cb (EV_P_ ev_io *w, int revents) + { + puts ("stdin ready"); + // for one-shot events, one must manually stop the watcher + // with its corresponding stop function. + ev_io_stop (EV_A_ w); + + // this causes all nested ev_run's to stop iterating + ev_break (EV_A_ EVBREAK_ALL); + } + + // another callback, this time for a time-out + static void + timeout_cb (EV_P_ ev_timer *w, int revents) + { + puts ("timeout"); + // this causes the innermost ev_run to stop iterating + ev_break (EV_A_ EVBREAK_ONE); + } + + int + main (void) + { + // use the default event loop unless you have special needs + struct ev_loop *loop = EV_DEFAULT; + + // initialise an io watcher, then start it + // this one will watch for stdin to become readable + ev_io_init (&stdin_watcher, stdin_cb, /*STDIN_FILENO*/ 0, EV_READ); + ev_io_start (loop, &stdin_watcher); + + // initialise a timer watcher, then start it + // simple non-repeating 5.5 second timeout + ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.); + ev_timer_start (loop, &timeout_watcher); + + // now wait for events to arrive + ev_run (loop, 0); + + // break was called, so exit + return 0; + } + +=head1 ABOUT THIS DOCUMENT + +This document documents the libev software package. + +The newest version of this document is also available as an html-formatted +web page you might find easier to navigate when reading it for the first +time: L. + +While this document tries to be as complete as possible in documenting +libev, its usage and the rationale behind its design, it is not a tutorial +on event-based programming, nor will it introduce event-based programming +with libev. + +Familiarity with event based programming techniques in general is assumed +throughout this document. + +=head1 WHAT TO READ WHEN IN A HURRY + +This manual tries to be very detailed, but unfortunately, this also makes +it very long. If you just want to know the basics of libev, I suggest +reading L, then the L above and +look up the missing functions in L and the C and +C sections in L. + +=head1 ABOUT LIBEV + +Libev is an event loop: you register interest in certain events (such as a +file descriptor being readable or a timeout occurring), and it will manage +these event sources and provide your program with events. + +To do this, it must take more or less complete control over your process +(or thread) by executing the I handler, and will then +communicate events via a callback mechanism. + +You register interest in certain events by registering so-called I, which are relatively small C structures you initialise with the +details of the event, and then hand it over to libev by I the +watcher. + +=head2 FEATURES + +Libev supports C (files, many character devices...). + +Epoll is truly the train wreck among event poll mechanisms, a frankenpoll, +cobbled together in a hurry, no thought to design or interaction with +others. Oh, the pain, will it ever stop... + +While stopping, setting and starting an I/O watcher in the same iteration +will result in some caching, there is still a system call per such +incident (because the same I could point to a different +I now), so its best to avoid that. Also, C'ed +file descriptors might not work very well if you register events for both +file descriptors. + +Best performance from this backend is achieved by not unregistering all +watchers for a file descriptor until it has been closed, if possible, +i.e. keep at least one watcher active per fd at all times. Stopping and +starting a watcher (without re-setting it) also usually doesn't cause +extra overhead. A fork can both result in spurious notifications as well +as in libev having to destroy and recreate the epoll object, which can +take considerable time and thus should be avoided. + +All this means that, in practice, C can be as fast or +faster than epoll for maybe up to a hundred file descriptors, depending on +the usage. So sad. + +While nominally embeddable in other event loops, this feature is broken in +all kernel versions tested so far. + +This backend maps C and C in the same way as +C. + +=item C (value 8, most BSD clones) + +Kqueue deserves special mention, as at the time of this writing, it +was broken on all BSDs except NetBSD (usually it doesn't work reliably +with anything but sockets and pipes, except on Darwin, where of course +it's completely useless). Unlike epoll, however, whose brokenness +is by design, these kqueue bugs can (and eventually will) be fixed +without API changes to existing programs. For this reason it's not being +"auto-detected" unless you explicitly specify it in the flags (i.e. using +C) or libev was compiled on a known-to-be-good (-enough) +system like NetBSD. + +You still can embed kqueue into a normal poll or select backend and use it +only for sockets (after having made sure that sockets work with kqueue on +the target platform). See C watchers for more info. + +It scales in the same way as the epoll backend, but the interface to the +kernel is more efficient (which says nothing about its actual speed, of +course). While stopping, setting and starting an I/O watcher does never +cause an extra system call as with C, it still adds up to +two event changes per incident. Support for C is very bad (you +might have to leak fd's on fork, but it's more sane than epoll) and it +drops fds silently in similarly hard-to-detect cases. + +This backend usually performs well under most conditions. + +While nominally embeddable in other event loops, this doesn't work +everywhere, so you might need to test for this. And since it is broken +almost everywhere, you should only use it when you have a lot of sockets +(for which it usually works), by embedding it into another event loop +(e.g. C or C (but C is of course +also broken on OS X)) and, did I mention it, using it only for sockets. + +This backend maps C into an C kevent with +C, and C into an C kevent with +C. + +=item C (value 16, Solaris 8) + +This is not implemented yet (and might never be, unless you send me an +implementation). According to reports, C only supports sockets +and is not embeddable, which would limit the usefulness of this backend +immensely. + +=item C (value 32, Solaris 10) + +This uses the Solaris 10 event port mechanism. As with everything on Solaris, +it's really slow, but it still scales very well (O(active_fds)). + +While this backend scales well, it requires one system call per active +file descriptor per loop iteration. For small and medium numbers of file +descriptors a "slow" C or C backend +might perform better. + +On the positive side, this backend actually performed fully to +specification in all tests and is fully embeddable, which is a rare feat +among the OS-specific backends (I vastly prefer correctness over speed +hacks). + +On the negative side, the interface is I - so bizarre that +even sun itself gets it wrong in their code examples: The event polling +function sometimes returns events to the caller even though an error +occurred, but with no indication whether it has done so or not (yes, it's +even documented that way) - deadly for edge-triggered interfaces where you +absolutely have to know whether an event occurred or not because you have +to re-arm the watcher. + +Fortunately libev seems to be able to work around these idiocies. + +This backend maps C and C in the same way as +C. + +=item C + +Try all backends (even potentially broken ones that wouldn't be tried +with C). Since this is a mask, you can do stuff such as +C. + +It is definitely not recommended to use this flag, use whatever +C returns, or simply do not specify a backend +at all. + +=item C + +Not a backend at all, but a mask to select all backend bits from a +C value, in case you want to mask out any backends from a flags +value (e.g. when modifying the C environment variable). + +=back + +If one or more of the backend flags are or'ed into the flags value, +then only these backends will be tried (in the reverse order as listed +here). If none are specified, all backends in C will be tried. + +Example: Try to create a event loop that uses epoll and nothing else. + + struct ev_loop *epoller = ev_loop_new (EVBACKEND_EPOLL | EVFLAG_NOENV); + if (!epoller) + fatal ("no epoll found here, maybe it hides under your chair"); + +Example: Use whatever libev has to offer, but make sure that kqueue is +used if available. + + struct ev_loop *loop = ev_loop_new (ev_recommended_backends () | EVBACKEND_KQUEUE); + +=item ev_loop_destroy (loop) + +Destroys an event loop object (frees all memory and kernel state +etc.). None of the active event watchers will be stopped in the normal +sense, so e.g. C might still return true. It is your +responsibility to either stop all watchers cleanly yourself I +calling this function, or cope with the fact afterwards (which is usually +the easiest thing, you can just ignore the watchers and/or C them +for example). + +Note that certain global state, such as signal state (and installed signal +handlers), will not be freed by this function, and related watchers (such +as signal and child watchers) would need to be stopped manually. + +This function is normally used on loop objects allocated by +C, but it can also be used on the default loop returned by +C, in which case it is not thread-safe. + +Note that it is not advisable to call this function on the default loop +except in the rare occasion where you really need to free its resources. +If you need dynamically allocated loops it is better to use C +and C. + +=item ev_loop_fork (loop) + +This function sets a flag that causes subsequent C iterations +to reinitialise the kernel state for backends that have one. Despite +the name, you can call it anytime you are allowed to start or stop +watchers (except inside an C callback), but it makes most +sense after forking, in the child process. You I call it (or use +C) in the child before resuming or calling C. + +In addition, if you want to reuse a loop (via this function or +C), you I have to ignore C. + +Again, you I to call it on I loop that you want to re-use after +a fork, I. This is +because some kernel interfaces *cough* I *cough* do funny things +during fork. + +On the other hand, you only need to call this function in the child +process if and only if you want to use the event loop in the child. If +you just fork+exec or create a new loop in the child, you don't have to +call it at all (in fact, C is so badly broken that it makes a +difference, but libev will usually detect this case on its own and do a +costly reset of the backend). + +The function itself is quite fast and it's usually not a problem to call +it just in case after a fork. + +Example: Automate calling C on the default loop when +using pthreads. + + static void + post_fork_child (void) + { + ev_loop_fork (EV_DEFAULT); + } + + ... + pthread_atfork (0, 0, post_fork_child); + +=item int ev_is_default_loop (loop) + +Returns true when the given loop is, in fact, the default loop, and false +otherwise. + +=item unsigned int ev_iteration (loop) + +Returns the current iteration count for the event loop, which is identical +to the number of times libev did poll for new events. It starts at C<0> +and happily wraps around with enough iterations. + +This value can sometimes be useful as a generation counter of sorts (it +"ticks" the number of loop iterations), as it roughly corresponds with +C and C calls - and is incremented between the +prepare and check phases. + +=item unsigned int ev_depth (loop) + +Returns the number of times C was entered minus the number of +times C was exited normally, in other words, the recursion depth. + +Outside C, this number is zero. In a callback, this number is +C<1>, unless C was invoked recursively (or from another thread), +in which case it is higher. + +Leaving C abnormally (setjmp/longjmp, cancelling the thread, +throwing an exception etc.), doesn't count as "exit" - consider this +as a hint to avoid such ungentleman-like behaviour unless it's really +convenient, in which case it is fully supported. + +=item unsigned int ev_backend (loop) + +Returns one of the C flags indicating the event backend in +use. + +=item ev_tstamp ev_now (loop) + +Returns the current "event loop time", which is the time the event loop +received events and started processing them. This timestamp does not +change as long as callbacks are being processed, and this is also the base +time used for relative timers. You can treat it as the timestamp of the +event occurring (or more correctly, libev finding out about it). + +=item ev_now_update (loop) + +Establishes the current time by querying the kernel, updating the time +returned by C in the progress. This is a costly operation and +is usually done automatically within C. + +This function is rarely useful, but when some event callback runs for a +very long time without entering the event loop, updating libev's idea of +the current time is a good idea. + +See also L in the C section. + +=item ev_suspend (loop) + +=item ev_resume (loop) + +These two functions suspend and resume an event loop, for use when the +loop is not used for a while and timeouts should not be processed. + +A typical use case would be an interactive program such as a game: When +the user presses C<^Z> to suspend the game and resumes it an hour later it +would be best to handle timeouts as if no time had actually passed while +the program was suspended. This can be achieved by calling C +in your C handler, sending yourself a C and calling +C directly afterwards to resume timer processing. + +Effectively, all C watchers will be delayed by the time spend +between C and C, and all C watchers +will be rescheduled (that is, they will lose any events that would have +occurred while suspended). + +After calling C you B call I function on the +given loop other than C, and you B call C +without a previous call to C. + +Calling C/C has the side effect of updating the +event loop time (see C). + +=item bool ev_run (loop, int flags) + +Finally, this is it, the event handler. This function usually is called +after you have initialised all your watchers and you want to start +handling events. It will ask the operating system for any new events, call +the watcher callbacks, and then repeat the whole process indefinitely: This +is why event loops are called I. + +If the flags argument is specified as C<0>, it will keep handling events +until either no event watchers are active anymore or C was +called. + +The return value is false if there are no more active watchers (which +usually means "all jobs done" or "deadlock"), and true in all other cases +(which usually means " you should call C again"). + +Please note that an explicit C is usually better than +relying on all watchers to be stopped when deciding when a program has +finished (especially in interactive programs), but having a program +that automatically loops as long as it has to and no longer by virtue +of relying on its watchers stopping correctly, that is truly a thing of +beauty. + +This function is I exception-safe - you can break out of a +C call by calling C in a callback, throwing a C++ +exception and so on. This does not decrement the C value, nor +will it clear any outstanding C breaks. + +A flags value of C will look for new events, will handle +those events and any already outstanding ones, but will not wait and +block your process in case there are no events and will return after one +iteration of the loop. This is sometimes useful to poll and handle new +events while doing lengthy calculations, to keep the program responsive. + +A flags value of C will look for new events (waiting if +necessary) and will handle those and any already outstanding ones. It +will block your process until at least one new event arrives (which could +be an event internal to libev itself, so there is no guarantee that a +user-registered callback will be called), and will return after one +iteration of the loop. + +This is useful if you are waiting for some external event in conjunction +with something not expressible using other libev watchers (i.e. "roll your +own C"). However, a pair of C/C watchers is +usually a better approach for this kind of thing. + +Here are the gory details of what C does (this is for your +understanding, not a guarantee that things will work exactly like this in +future versions): + + - Increment loop depth. + - Reset the ev_break status. + - Before the first iteration, call any pending watchers. + LOOP: + - If EVFLAG_FORKCHECK was used, check for a fork. + - If a fork was detected (by any means), queue and call all fork watchers. + - Queue and call all prepare watchers. + - If ev_break was called, goto FINISH. + - If we have been forked, detach and recreate the kernel state + as to not disturb the other process. + - Update the kernel state with all outstanding changes. + - Update the "event loop time" (ev_now ()). + - Calculate for how long to sleep or block, if at all + (active idle watchers, EVRUN_NOWAIT or not having + any active watchers at all will result in not sleeping). + - Sleep if the I/O and timer collect interval say so. + - Increment loop iteration counter. + - Block the process, waiting for any events. + - Queue all outstanding I/O (fd) events. + - Update the "event loop time" (ev_now ()), and do time jump adjustments. + - Queue all expired timers. + - Queue all expired periodics. + - Queue all idle watchers with priority higher than that of pending events. + - Queue all check watchers. + - Call all queued watchers in reverse order (i.e. check watchers first). + Signals and child watchers are implemented as I/O watchers, and will + be handled here by queueing them when their watcher gets executed. + - If ev_break has been called, or EVRUN_ONCE or EVRUN_NOWAIT + were used, or there are no active watchers, goto FINISH, otherwise + continue with step LOOP. + FINISH: + - Reset the ev_break status iff it was EVBREAK_ONE. + - Decrement the loop depth. + - Return. + +Example: Queue some jobs and then loop until no events are outstanding +anymore. + + ... queue jobs here, make sure they register event watchers as long + ... as they still have work to do (even an idle watcher will do..) + ev_run (my_loop, 0); + ... jobs done or somebody called break. yeah! + +=item ev_break (loop, how) + +Can be used to make a call to C return early (but only after it +has processed all outstanding events). The C argument must be either +C, which will make the innermost C call return, or +C, which will make all nested C calls return. + +This "break state" will be cleared on the next call to C. + +It is safe to call C from outside any C calls, too, in +which case it will have no effect. + +=item ev_ref (loop) + +=item ev_unref (loop) + +Ref/unref can be used to add or remove a reference count on the event +loop: Every watcher keeps one reference, and as long as the reference +count is nonzero, C will not return on its own. + +This is useful when you have a watcher that you never intend to +unregister, but that nevertheless should not keep C from +returning. In such a case, call C after starting, and C +before stopping it. + +As an example, libev itself uses this for its internal signal pipe: It +is not visible to the libev user and should not keep C from +exiting if no event watchers registered by it are active. It is also an +excellent way to do this for generic recurring timers or from within +third-party libraries. Just remember to I and I (but only if the watcher wasn't active before, or was active +before, respectively. Note also that libev might stop watchers itself +(e.g. non-repeating timers) in which case you have to C +in the callback). + +Example: Create a signal watcher, but keep it from keeping C +running when nothing else is active. + + ev_signal exitsig; + ev_signal_init (&exitsig, sig_cb, SIGINT); + ev_signal_start (loop, &exitsig); + ev_unref (loop); + +Example: For some weird reason, unregister the above signal handler again. + + ev_ref (loop); + ev_signal_stop (loop, &exitsig); + +=item ev_set_io_collect_interval (loop, ev_tstamp interval) + +=item ev_set_timeout_collect_interval (loop, ev_tstamp interval) + +These advanced functions influence the time that libev will spend waiting +for events. Both time intervals are by default C<0>, meaning that libev +will try to invoke timer/periodic callbacks and I/O callbacks with minimum +latency. + +Setting these to a higher value (the C I be >= C<0>) +allows libev to delay invocation of I/O and timer/periodic callbacks +to increase efficiency of loop iterations (or to increase power-saving +opportunities). + +The idea is that sometimes your program runs just fast enough to handle +one (or very few) event(s) per loop iteration. While this makes the +program responsive, it also wastes a lot of CPU time to poll for new +events, especially with backends like C (or libev) on file descriptors +representing files, and expect it to become ready when their program +doesn't block on disk accesses (which can take a long time on their own). + +However, this cannot ever work in the "expected" way - you get a readiness +notification as soon as the kernel knows whether and how much data is +there, and in the case of open files, that's always the case, so you +always get a readiness notification instantly, and your read (or possibly +write) will still block on the disk I/O. + +Another way to view it is that in the case of sockets, pipes, character +devices and so on, there is another party (the sender) that delivers data +on its own, but in the case of files, there is no such thing: the disk +will not send data on its own, simply because it doesn't know what you +wish to read - you would first have to request some data. + +Since files are typically not-so-well supported by advanced notification +mechanism, libev tries hard to emulate POSIX behaviour with respect +to files, even though you should not use it. The reason for this is +convenience: sometimes you want to watch STDIN or STDOUT, which is +usually a tty, often a pipe, but also sometimes files or special devices +(for example, C on Linux works with F but not with +F), and even though the file might better be served with +asynchronous I/O instead of with non-blocking I/O, it is still useful when +it "just works" instead of freezing. + +So avoid file descriptors pointing to files when you know it (e.g. use +libeio), but use them when it is convenient, e.g. for STDIN/STDOUT, or +when you rarely read from a file instead of from a socket, and want to +reuse the same code path. + +=head3 The special problem of fork + +Some backends (epoll, kqueue) do not support C at all or exhibit +useless behaviour. Libev fully supports fork, but needs to be told about +it in the child if you want to continue to use it in the child. + +To support fork in your child processes, you have to call C after a fork in the child, enable C, or resort to +C or C. + +=head3 The special problem of SIGPIPE + +While not really specific to libev, it is easy to forget about C: +when writing to a pipe whose other end has been closed, your program gets +sent a SIGPIPE, which, by default, aborts your program. For most programs +this is sensible behaviour, for daemons, this is usually undesirable. + +So when you encounter spurious, unexplained daemon exits, make sure you +ignore SIGPIPE (and maybe make sure you log the exit status of your daemon +somewhere, as that would have given you a big clue). + +=head3 The special problem of accept()ing when you can't + +Many implementations of the POSIX C function (for example, +found in post-2004 Linux) have the peculiar behaviour of not removing a +connection from the pending queue in all error cases. + +For example, larger servers often run out of file descriptors (because +of resource limits), causing C to fail with C but not +rejecting the connection, leading to libev signalling readiness on +the next iteration again (the connection still exists after all), and +typically causing the program to loop at 100% CPU usage. + +Unfortunately, the set of errors that cause this issue differs between +operating systems, there is usually little the app can do to remedy the +situation, and no known thread-safe method of removing the connection to +cope with overload is known (to me). + +One of the easiest ways to handle this situation is to just ignore it +- when the program encounters an overload, it will just loop until the +situation is over. While this is a form of busy waiting, no OS offers an +event-based way to handle this situation, so it's the best one can do. + +A better way to handle the situation is to log any errors other than +C and C, making sure not to flood the log with such +messages, and continue as usual, which at least gives the user an idea of +what could be wrong ("raise the ulimit!"). For extra points one could stop +the C watcher on the listening fd "for a while", which reduces CPU +usage. + +If your program is single-threaded, then you could also keep a dummy file +descriptor for overload situations (e.g. by opening F), and +when you run into C or C, close it, run C, +close that fd, and create a new dummy fd. This will gracefully refuse +clients under typical overload conditions. + +The last way to handle it is to simply log the error and C, as +is often done with C failures, but this results in an easy +opportunity for a DoS attack. + +=head3 Watcher-Specific Functions + +=over 4 + +=item ev_io_init (ev_io *, callback, int fd, int events) + +=item ev_io_set (ev_io *, int fd, int events) + +Configures an C watcher. The C is the file descriptor to +receive events for and C is either C, C or +C, to express the desire to receive the given events. + +=item int fd [read-only] + +The file descriptor being watched. + +=item int events [read-only] + +The events being watched. + +=back + +=head3 Examples + +Example: Call C when STDIN_FILENO has become, well +readable, but only once. Since it is likely line-buffered, you could +attempt to read a whole line in the callback. + + static void + stdin_readable_cb (struct ev_loop *loop, ev_io *w, int revents) + { + ev_io_stop (loop, w); + .. read from stdin here (or from w->fd) and handle any I/O errors + } + + ... + struct ev_loop *loop = ev_default_init (0); + ev_io stdin_readable; + ev_io_init (&stdin_readable, stdin_readable_cb, STDIN_FILENO, EV_READ); + ev_io_start (loop, &stdin_readable); + ev_run (loop, 0); + + +=head2 C - relative and optionally repeating timeouts + +Timer watchers are simple relative timers that generate an event after a +given time, and optionally repeating in regular intervals after that. + +The timers are based on real time, that is, if you register an event that +times out after an hour and you reset your system clock to January last +year, it will still time out after (roughly) one hour. "Roughly" because +detecting time jumps is hard, and some inaccuracies are unavoidable (the +monotonic clock option helps a lot here). + +The callback is guaranteed to be invoked only I its timeout has +passed (not I, so on systems with very low-resolution clocks this +might introduce a small delay, see "the special problem of being too +early", below). If multiple timers become ready during the same loop +iteration then the ones with earlier time-out values are invoked before +ones of the same priority with later time-out values (but this is no +longer true when a callback calls C recursively). + +=head3 Be smart about timeouts + +Many real-world problems involve some kind of timeout, usually for error +recovery. A typical example is an HTTP request - if the other side hangs, +you want to raise some error after a while. + +What follows are some ways to handle this problem, from obvious and +inefficient to smart and efficient. + +In the following, a 60 second activity timeout is assumed - a timeout that +gets reset to 60 seconds each time there is activity (e.g. each time some +data or other life sign was received). + +=over 4 + +=item 1. Use a timer and stop, reinitialise and start it on activity. + +This is the most obvious, but not the most simple way: In the beginning, +start the watcher: + + ev_timer_init (timer, callback, 60., 0.); + ev_timer_start (loop, timer); + +Then, each time there is some activity, C it, initialise it +and start it again: + + ev_timer_stop (loop, timer); + ev_timer_set (timer, 60., 0.); + ev_timer_start (loop, timer); + +This is relatively simple to implement, but means that each time there is +some activity, libev will first have to remove the timer from its internal +data structure and then add it again. Libev tries to be fast, but it's +still not a constant-time operation. + +=item 2. Use a timer and re-start it with C inactivity. + +This is the easiest way, and involves using C instead of +C. + +To implement this, configure an C with a C value +of C<60> and then call C at start and each time you +successfully read or write some data. If you go into an idle state where +you do not expect data to travel on the socket, you can C +the timer, and C will automatically restart it if need be. + +That means you can ignore both the C function and the +C argument to C, and only ever use the C +member and C. + +At start: + + ev_init (timer, callback); + timer->repeat = 60.; + ev_timer_again (loop, timer); + +Each time there is some activity: + + ev_timer_again (loop, timer); + +It is even possible to change the time-out on the fly, regardless of +whether the watcher is active or not: + + timer->repeat = 30.; + ev_timer_again (loop, timer); + +This is slightly more efficient then stopping/starting the timer each time +you want to modify its timeout value, as libev does not have to completely +remove and re-insert the timer from/into its internal data structure. + +It is, however, even simpler than the "obvious" way to do it. + +=item 3. Let the timer time out, but then re-arm it as required. + +This method is more tricky, but usually most efficient: Most timeouts are +relatively long compared to the intervals between other activity - in +our example, within 60 seconds, there are usually many I/O events with +associated activity resets. + +In this case, it would be more efficient to leave the C alone, +but remember the time of last activity, and check for a real timeout only +within the callback: + + ev_tstamp timeout = 60.; + ev_tstamp last_activity; // time of last activity + ev_timer timer; + + static void + callback (EV_P_ ev_timer *w, int revents) + { + // calculate when the timeout would happen + ev_tstamp after = last_activity - ev_now (EV_A) + timeout; + + // if negative, it means we the timeout already occurred + if (after < 0.) + { + // timeout occurred, take action + } + else + { + // callback was invoked, but there was some recent + // activity. simply restart the timer to time out + // after "after" seconds, which is the earliest time + // the timeout can occur. + ev_timer_set (w, after, 0.); + ev_timer_start (EV_A_ w); + } + } + +To summarise the callback: first calculate in how many seconds the +timeout will occur (by calculating the absolute time when it would occur, +C, and subtracting the current time, C from that). + +If this value is negative, then we are already past the timeout, i.e. we +timed out, and need to do whatever is needed in this case. + +Otherwise, we now the earliest time at which the timeout would trigger, +and simply start the timer with this timeout value. + +In other words, each time the callback is invoked it will check whether +the timeout occurred. If not, it will simply reschedule itself to check +again at the earliest time it could time out. Rinse. Repeat. + +This scheme causes more callback invocations (about one every 60 seconds +minus half the average time between activity), but virtually no calls to +libev to change the timeout. + +To start the machinery, simply initialise the watcher and set +C to the current time (meaning there was some activity just +now), then call the callback, which will "do the right thing" and start +the timer: + + last_activity = ev_now (EV_A); + ev_init (&timer, callback); + callback (EV_A_ &timer, 0); + +When there is some activity, simply store the current time in +C, no libev calls at all: + + if (activity detected) + last_activity = ev_now (EV_A); + +When your timeout value changes, then the timeout can be changed by simply +providing a new value, stopping the timer and calling the callback, which +will again do the right thing (for example, time out immediately :). + + timeout = new_value; + ev_timer_stop (EV_A_ &timer); + callback (EV_A_ &timer, 0); + +This technique is slightly more complex, but in most cases where the +time-out is unlikely to be triggered, much more efficient. + +=item 4. Wee, just use a double-linked list for your timeouts. + +If there is not one request, but many thousands (millions...), all +employing some kind of timeout with the same timeout value, then one can +do even better: + +When starting the timeout, calculate the timeout value and put the timeout +at the I of the list. + +Then use an C to fire when the timeout at the I of +the list is expected to fire (for example, using the technique #3). + +When there is some activity, remove the timer from the list, recalculate +the timeout, append it to the end of the list again, and make sure to +update the C if it was taken from the beginning of the list. + +This way, one can manage an unlimited number of timeouts in O(1) time for +starting, stopping and updating the timers, at the expense of a major +complication, and having to use a constant timeout. The constant timeout +ensures that the list stays sorted. + +=back + +So which method the best? + +Method #2 is a simple no-brain-required solution that is adequate in most +situations. Method #3 requires a bit more thinking, but handles many cases +better, and isn't very complicated either. In most case, choosing either +one is fine, with #3 being better in typical situations. + +Method #1 is almost always a bad idea, and buys you nothing. Method #4 is +rather complicated, but extremely efficient, something that really pays +off after the first million or so of active timers, i.e. it's usually +overkill :) + +=head3 The special problem of being too early + +If you ask a timer to call your callback after three seconds, then +you expect it to be invoked after three seconds - but of course, this +cannot be guaranteed to infinite precision. Less obviously, it cannot be +guaranteed to any precision by libev - imagine somebody suspending the +process with a STOP signal for a few hours for example. + +So, libev tries to invoke your callback as soon as possible I the +delay has occurred, but cannot guarantee this. + +A less obvious failure mode is calling your callback too early: many event +loops compare timestamps with a "elapsed delay >= requested delay", but +this can cause your callback to be invoked much earlier than you would +expect. + +To see why, imagine a system with a clock that only offers full second +resolution (think windows if you can't come up with a broken enough OS +yourself). If you schedule a one-second timer at the time 500.9, then the +event loop will schedule your timeout to elapse at a system time of 500 +(500.9 truncated to the resolution) + 1, or 501. + +If an event library looks at the timeout 0.1s later, it will see "501 >= +501" and invoke the callback 0.1s after it was started, even though a +one-second delay was requested - this is being "too early", despite best +intentions. + +This is the reason why libev will never invoke the callback if the elapsed +delay equals the requested delay, but only when the elapsed delay is +larger than the requested delay. In the example above, libev would only invoke +the callback at system time 502, or 1.1s after the timer was started. + +So, while libev cannot guarantee that your callback will be invoked +exactly when requested, it I and I guarantee that the requested +delay has actually elapsed, or in other words, it always errs on the "too +late" side of things. + +=head3 The special problem of time updates + +Establishing the current time is a costly operation (it usually takes +at least one system call): EV therefore updates its idea of the current +time only before and after C collects new events, which causes a +growing difference between C and C when handling +lots of events in one iteration. + +The relative timeouts are calculated relative to the C +time. This is usually the right thing as this timestamp refers to the time +of the event triggering whatever timeout you are modifying/starting. If +you suspect event processing to be delayed and you I to base the +timeout on the current time, use something like the following to adjust +for it: + + ev_timer_set (&timer, after + (ev_time () - ev_now ()), 0.); + +If the event loop is suspended for a long time, you can also force an +update of the time returned by C by calling C, although that will push the event time of all outstanding events +further into the future. + +=head3 The special problem of unsynchronised clocks + +Modern systems have a variety of clocks - libev itself uses the normal +"wall clock" clock and, if available, the monotonic clock (to avoid time +jumps). + +Neither of these clocks is synchronised with each other or any other clock +on the system, so C might return a considerably different time +than C or C