configure.acon commit autoconf: Checks for libraries (ebdf532)
   1#                                               -*- Autoconf -*-
   2# Process this file with autoconf to produce a configure script.
   3
   4AC_PREREQ(2.59)
   5AC_INIT([git], [1.4.1], [git@vger.kernel.org])
   6
   7AC_CONFIG_SRCDIR([git.c])
   8
   9config_file=config.mak.autogen
  10config_append=config.mak.append
  11config_in=config.mak.in
  12
  13echo "# ${config_append}.  Generated by configure." > "${config_append}"
  14
  15
  16## Definitions of macros
  17# GIT_CONF_APPEND_LINE(LINE)
  18# --------------------------
  19# Append LINE to file ${config_append}
  20AC_DEFUN([GIT_CONF_APPEND_LINE],
  21[echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE
  22
  23
  24## Checks for programs.
  25# Define NO_PYTHON if you want to loose all benefits of the recursive merge.
  26
  27
  28## Checks for libraries.
  29AC_MSG_NOTICE([CHECKS for libraries])
  30
  31# Define NO_OPENSSL environment variable if you do not have OpenSSL.
  32# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
  33AC_CHECK_LIB([ssl], [SHA1_Init],[],
  34[AC_CHECK_LIB([crypto], [SHA1_INIT],
  35 GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=YesPlease),
  36 GIT_CONF_APPEND_LINE(NO_OPENSSL=YesPlease))])
  37
  38# Define NO_CURL if you do not have curl installed.  git-http-pull and
  39# git-http-push are not built, and you cannot use http:// and https://
  40# transports.
  41AC_CHECK_LIB([curl], [curl_global_init],[],
  42GIT_CONF_APPEND_LINE(NO_CURL=YesPlease))
  43
  44# Define NO_EXPAT if you do not have expat installed.  git-http-push is
  45# not built, and you cannot push using http:// and https:// transports.
  46AC_CHECK_LIB([expat], [XML_ParserCreate],[],
  47GIT_CONF_APPEND_LINE(NO_EXPAT=YesPlease))
  48
  49# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
  50AC_CHECK_LIB([c], [iconv],[],
  51[AC_CHECK_LIB([iconv],[iconv],
  52 GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=YesPlease),[])])
  53
  54# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
  55# Patrick Mauritz).
  56AC_CHECK_LIB([c], [socket],[],
  57[AC_CHECK_LIB([socket],[socket],
  58 GIT_CONF_APPEND_LINE(NEEDS_SOCKET=YesPlease),[])])
  59
  60
  61## Checks for header files.
  62
  63
  64## Checks for typedefs, structures, and compiler characteristics.
  65AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
  66
  67# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
  68AC_CHECK_MEMBER(struct dirent.d_ino,[],
  69GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=YesPlease),
  70[#include <dirent.h>])
  71
  72# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
  73# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
  74AC_CHECK_MEMBER(struct dirent.d_type,[],
  75GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=YesPlease),
  76[#include <dirent.h>])
  77
  78# Define NO_SOCKADDR_STORAGE if your platform does not have struct
  79# sockaddr_storage.
  80AC_CHECK_TYPE(struct sockaddr_storage,[],
  81GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=YesPlease),
  82[#include <netinet/in.h>])
  83
  84
  85## Checks for library functions.
  86## (in default C library and libraries checked by AC_CHECK_LIB)
  87AC_MSG_NOTICE([CHECKS for library functions])
  88
  89# Define NO_STRCASESTR if you don't have strcasestr.
  90AC_CHECK_FUNC(strcasestr,[],
  91GIT_CONF_APPEND_LINE(NO_STRCASESTR=YesPlease))
  92
  93# Define NO_STRLCPY if you don't have strlcpy.
  94AC_CHECK_FUNC(strlcpy,[],
  95GIT_CONF_APPEND_LINE(NO_STRLCPY=YesPlease))
  96
  97# Define NO_SETENV if you don't have setenv in the C library.
  98AC_CHECK_FUNC(setenv,[],
  99GIT_CONF_APPEND_LINE(NO_SETENV=YesPlease))
 100
 101# Define NO_MMAP if you want to avoid mmap.
 102#
 103# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
 104#
 105# Define NO_ICONV if your libc does not properly support iconv.
 106
 107
 108## Other checks.
 109# Define USE_PIC if you need the main git objects to be built with -fPIC
 110# in order to build and link perl/Git.so.  x86-64 seems to need this.
 111#
 112# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
 113# Enable it on Windows.  By default, symrefs are still used.
 114#
 115# Define WITH_OWN_SUBPROCESS_PY if you want to use with python 2.3.
 116#
 117# Define NO_ACCURATE_DIFF if your diff program at least sometimes misses
 118# a missing newline at the end of the file.
 119
 120
 121## Site configuration
 122## --with-PACKAGE[=ARG] and --without-PACKAGE
 123# Define NO_SVN_TESTS if you want to skip time-consuming SVN interopability
 124# tests.  These tests take up a significant amount of the total test time
 125# but are not needed unless you plan to talk to SVN repos.
 126#
 127# Define MOZILLA_SHA1 environment variable when running make to make use of
 128# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
 129# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
 130# choice) has very fast version optimized for i586.
 131#
 132# Define PPC_SHA1 environment variable when running make to make use of
 133# a bundled SHA1 routine optimized for PowerPC.
 134#
 135# Define ARM_SHA1 environment variable when running make to make use of
 136# a bundled SHA1 routine optimized for ARM.
 137#
 138# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 139# This also implies MOZILLA_SHA1.
 140#
 141# Define NO_CURL if you do not have curl installed.  git-http-pull and
 142# git-http-push are not built, and you cannot use http:// and https://
 143# transports.
 144#
 145# Define CURLDIR=/foo/bar if your curl header and library files are in
 146# /foo/bar/include and /foo/bar/lib directories.
 147#
 148# Define NO_EXPAT if you do not have expat installed.  git-http-push is
 149# not built, and you cannot push using http:// and https:// transports.
 150#
 151# Define NO_MMAP if you want to avoid mmap.
 152#
 153# Define NO_PYTHON if you want to loose all benefits of the recursive merge.
 154#
 155## --enable-FEATURE[=ARG] and --disable-FEATURE
 156# Define COLLISION_CHECK below if you believe that SHA1's
 157# 1461501637330902918203684832716283019655932542976 hashes do not give you
 158# sufficient guarantee that no collisions between objects will ever happen.
 159#
 160# Define USE_NSEC below if you want git to care about sub-second file mtimes
 161# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
 162# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
 163# randomly break unless your underlying filesystem supports those sub-second
 164# times (my ext3 doesn't).
 165#
 166# Define USE_STDEV below if you want git to care about the underlying device
 167# change being considered an inode change from the update-cache perspective.
 168
 169
 170## Output files
 171AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
 172AC_OUTPUT
 173
 174## Cleanup
 175rm -f "${config_append}"