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