configure.ac - jrn/git - Git at Google

 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.

 AC_PREREQ(2.59)
 AC_INIT([git], [1.4.1], [git@vger.kernel.org])

 AC_CONFIG_SRCDIR([git.c])

 config_file=config.mak.autogen
 config_append=config.mak.append
 config_in=config.mak.in

 echo "# ${config_append}.  Generated by configure." > "${config_append}"


 ## Definitions of macros
 # GIT_CONF_APPEND_LINE(LINE)
 # --------------------------
 # Append LINE to file ${config_append}
 AC_DEFUN([GIT_CONF_APPEND_LINE],
 [echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE


 ## Checks for programs.
 AC_MSG_NOTICE([CHECKS for programs])
 #
 AC_PROG_CC
 #AC_PROG_INSTALL		# needs install-sh or install.sh in sources
 AC_CHECK_TOOL(AR, ar, :)
 AC_CHECK_PROGS(TAR, [gtar tar])
 #
 # Define NO_PYTHON if you want to lose all benefits of the recursive merge.


 ## Checks for libraries.
 AC_MSG_NOTICE([CHECKS for libraries])
 #
 # Define NO_OPENSSL environment variable if you do not have OpenSSL.
 # Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
 AC_CHECK_LIB([ssl], [SHA1_Init],[],
 [AC_CHECK_LIB([crypto], [SHA1_INIT],
  [GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=YesPlease)],
  [GIT_CONF_APPEND_LINE(NO_OPENSSL=YesPlease)])])
 #
 # Define NO_CURL if you do not have curl installed.  git-http-pull and
 # git-http-push are not built, and you cannot use http:// and https://
 # transports.
 AC_CHECK_LIB([curl], [curl_global_init],[],
 [GIT_CONF_APPEND_LINE(NO_CURL=YesPlease)])
 #
 # Define NO_EXPAT if you do not have expat installed.  git-http-push is
 # not built, and you cannot push using http:// and https:// transports.
 AC_CHECK_LIB([expat], [XML_ParserCreate],[],
 [GIT_CONF_APPEND_LINE(NO_EXPAT=YesPlease)])
 #
 # Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
 AC_CHECK_LIB([c], [iconv],[],
 [AC_CHECK_LIB([iconv],[iconv],
  [GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=YesPlease)],[])])
 #
 # Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
 # Patrick Mauritz).
 AC_CHECK_LIB([c], [socket],[],
 [AC_CHECK_LIB([socket],[socket],
  [GIT_CONF_APPEND_LINE(NEEDS_SOCKET=YesPlease)],[])])


 ## Checks for header files.


 ## Checks for typedefs, structures, and compiler characteristics.
 AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
 #
 # Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
 AC_CHECK_MEMBER(struct dirent.d_ino,[],
 [GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=YesPlease)],
 [#include <dirent.h>])
 #
 # Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
 # d_type in struct dirent (latest Cygwin -- will be fixed soonish).
 AC_CHECK_MEMBER(struct dirent.d_type,[],
 [GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=YesPlease)],
 [#include <dirent.h>])
 #
 # Define NO_SOCKADDR_STORAGE if your platform does not have struct
 # sockaddr_storage.
 AC_CHECK_TYPE(struct sockaddr_storage,[],
 [GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=YesPlease)],
 [#include <netinet/in.h>])


 ## Checks for library functions.
 ## (in default C library and libraries checked by AC_CHECK_LIB)
 AC_MSG_NOTICE([CHECKS for library functions])
 #
 # Define NO_STRCASESTR if you don't have strcasestr.
 AC_CHECK_FUNC(strcasestr,[],
 [GIT_CONF_APPEND_LINE(NO_STRCASESTR=YesPlease)])
 #
 # Define NO_STRLCPY if you don't have strlcpy.
 AC_CHECK_FUNC(strlcpy,[],
 [GIT_CONF_APPEND_LINE(NO_STRLCPY=YesPlease)])
 #
 # Define NO_SETENV if you don't have setenv in the C library.
 AC_CHECK_FUNC(setenv,[],
 [GIT_CONF_APPEND_LINE(NO_SETENV=YesPlease)])
 #
 # Define NO_MMAP if you want to avoid mmap.
 #
 # Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
 #
 # Define NO_ICONV if your libc does not properly support iconv.


 ## Other checks.
 # Define USE_PIC if you need the main git objects to be built with -fPIC
 # in order to build and link perl/Git.so.  x86-64 seems to need this.
 #
 # Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
 # Enable it on Windows.  By default, symrefs are still used.
 #
 # Define WITH_OWN_SUBPROCESS_PY if you want to use with python 2.3.
 #
 # Define NO_ACCURATE_DIFF if your diff program at least sometimes misses
 # a missing newline at the end of the file.


 ## Site configuration
 ## --with-PACKAGE[=ARG] and --without-PACKAGE
 # Define NO_SVN_TESTS if you want to skip time-consuming SVN interopability
 # tests.  These tests take up a significant amount of the total test time
 # but are not needed unless you plan to talk to SVN repos.
 #
 # Define MOZILLA_SHA1 environment variable when running make to make use of
 # a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
 # on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
 # choice) has very fast version optimized for i586.
 #
 # Define PPC_SHA1 environment variable when running make to make use of
 # a bundled SHA1 routine optimized for PowerPC.
 #
 # Define ARM_SHA1 environment variable when running make to make use of
 # a bundled SHA1 routine optimized for ARM.
 #
 # Define NO_OPENSSL environment variable if you do not have OpenSSL.
 # This also implies MOZILLA_SHA1.
 #
 # Define NO_CURL if you do not have curl installed.  git-http-pull and
 # git-http-push are not built, and you cannot use http:// and https://
 # transports.
 #
 # Define CURLDIR=/foo/bar if your curl header and library files are in
 # /foo/bar/include and /foo/bar/lib directories.
 #
 # Define NO_EXPAT if you do not have expat installed.  git-http-push is
 # not built, and you cannot push using http:// and https:// transports.
 #
 # Define NO_MMAP if you want to avoid mmap.
 #
 # Define NO_PYTHON if you want to loose all benefits of the recursive merge.
 #
 ## --enable-FEATURE[=ARG] and --disable-FEATURE
 # Define COLLISION_CHECK below if you believe that SHA1's
 # 1461501637330902918203684832716283019655932542976 hashes do not give you
 # sufficient guarantee that no collisions between objects will ever happen.
 #
 # Define USE_NSEC below if you want git to care about sub-second file mtimes
 # and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
 # it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
 # randomly break unless your underlying filesystem supports those sub-second
 # times (my ext3 doesn't).
 #
 # Define USE_STDEV below if you want git to care about the underlying device
 # change being considered an inode change from the update-cache perspective.


 ## Output files
 AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
 AC_OUTPUT


 ## Cleanup
 rm -f "${config_append}"
	# -- Autoconf --
	# Process this file with autoconf to produce a configure script.

	AC_PREREQ(2.59)
	AC_INIT([git], [1.4.1], [git@vger.kernel.org])

	AC_CONFIG_SRCDIR([git.c])

	config_file=config.mak.autogen
	config_append=config.mak.append
	config_in=config.mak.in

	echo "# ${config_append}. Generated by configure." > "${config_append}"


	## Definitions of macros
	# GIT_CONF_APPEND_LINE(LINE)
	# --------------------------
	# Append LINE to file ${config_append}
	AC_DEFUN([GIT_CONF_APPEND_LINE],
	[echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE


	## Checks for programs.
	AC_MSG_NOTICE([CHECKS for programs])
	#
	AC_PROG_CC
	#AC_PROG_INSTALL # needs install-sh or install.sh in sources
	AC_CHECK_TOOL(AR, ar, :)
	AC_CHECK_PROGS(TAR, [gtar tar])
	#
	# Define NO_PYTHON if you want to lose all benefits of the recursive merge.


	## Checks for libraries.
	AC_MSG_NOTICE([CHECKS for libraries])
	#
	# Define NO_OPENSSL environment variable if you do not have OpenSSL.
	# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
	AC_CHECK_LIB([ssl], [SHA1_Init],[],
	[AC_CHECK_LIB([crypto], [SHA1_INIT],
	[GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=YesPlease)],
	[GIT_CONF_APPEND_LINE(NO_OPENSSL=YesPlease)])])
	#
	# Define NO_CURL if you do not have curl installed. git-http-pull and
	# git-http-push are not built, and you cannot use http:// and https://
	# transports.
	AC_CHECK_LIB([curl], [curl_global_init],[],
	[GIT_CONF_APPEND_LINE(NO_CURL=YesPlease)])
	#
	# Define NO_EXPAT if you do not have expat installed. git-http-push is
	# not built, and you cannot push using http:// and https:// transports.
	AC_CHECK_LIB([expat], [XML_ParserCreate],[],
	[GIT_CONF_APPEND_LINE(NO_EXPAT=YesPlease)])
	#
	# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
	AC_CHECK_LIB([c], [iconv],[],
	[AC_CHECK_LIB([iconv],[iconv],
	[GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=YesPlease)],[])])
	#
	# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
	# Patrick Mauritz).
	AC_CHECK_LIB([c], [socket],[],
	[AC_CHECK_LIB([socket],[socket],
	[GIT_CONF_APPEND_LINE(NEEDS_SOCKET=YesPlease)],[])])


	## Checks for header files.


	## Checks for typedefs, structures, and compiler characteristics.
	AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
	#
	# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
	AC_CHECK_MEMBER(struct dirent.d_ino,[],
	[GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=YesPlease)],
	[#include <dirent.h>])
	#
	# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
	# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
	AC_CHECK_MEMBER(struct dirent.d_type,[],
	[GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=YesPlease)],
	[#include <dirent.h>])
	#
	# Define NO_SOCKADDR_STORAGE if your platform does not have struct
	# sockaddr_storage.
	AC_CHECK_TYPE(struct sockaddr_storage,[],
	[GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=YesPlease)],
	[#include <netinet/in.h>])


	## Checks for library functions.
	## (in default C library and libraries checked by AC_CHECK_LIB)
	AC_MSG_NOTICE([CHECKS for library functions])
	#
	# Define NO_STRCASESTR if you don't have strcasestr.
	AC_CHECK_FUNC(strcasestr,[],
	[GIT_CONF_APPEND_LINE(NO_STRCASESTR=YesPlease)])
	#
	# Define NO_STRLCPY if you don't have strlcpy.
	AC_CHECK_FUNC(strlcpy,[],
	[GIT_CONF_APPEND_LINE(NO_STRLCPY=YesPlease)])
	#
	# Define NO_SETENV if you don't have setenv in the C library.
	AC_CHECK_FUNC(setenv,[],
	[GIT_CONF_APPEND_LINE(NO_SETENV=YesPlease)])
	#
	# Define NO_MMAP if you want to avoid mmap.
	#
	# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
	#
	# Define NO_ICONV if your libc does not properly support iconv.


	## Other checks.
	# Define USE_PIC if you need the main git objects to be built with -fPIC
	# in order to build and link perl/Git.so. x86-64 seems to need this.
	#
	# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
	# Enable it on Windows. By default, symrefs are still used.
	#
	# Define WITH_OWN_SUBPROCESS_PY if you want to use with python 2.3.
	#
	# Define NO_ACCURATE_DIFF if your diff program at least sometimes misses
	# a missing newline at the end of the file.


	## Site configuration
	## --with-PACKAGE[=ARG] and --without-PACKAGE
	# Define NO_SVN_TESTS if you want to skip time-consuming SVN interopability
	# tests. These tests take up a significant amount of the total test time
	# but are not needed unless you plan to talk to SVN repos.
	#
	# Define MOZILLA_SHA1 environment variable when running make to make use of
	# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
	# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
	# choice) has very fast version optimized for i586.
	#
	# Define PPC_SHA1 environment variable when running make to make use of
	# a bundled SHA1 routine optimized for PowerPC.
	#
	# Define ARM_SHA1 environment variable when running make to make use of
	# a bundled SHA1 routine optimized for ARM.
	#
	# Define NO_OPENSSL environment variable if you do not have OpenSSL.
	# This also implies MOZILLA_SHA1.
	#
	# Define NO_CURL if you do not have curl installed. git-http-pull and
	# git-http-push are not built, and you cannot use http:// and https://
	# transports.
	#
	# Define CURLDIR=/foo/bar if your curl header and library files are in
	# /foo/bar/include and /foo/bar/lib directories.
	#
	# Define NO_EXPAT if you do not have expat installed. git-http-push is
	# not built, and you cannot push using http:// and https:// transports.
	#
	# Define NO_MMAP if you want to avoid mmap.
	#
	# Define NO_PYTHON if you want to loose all benefits of the recursive merge.
	#
	## --enable-FEATURE[=ARG] and --disable-FEATURE
	# Define COLLISION_CHECK below if you believe that SHA1's
	# 1461501637330902918203684832716283019655932542976 hashes do not give you
	# sufficient guarantee that no collisions between objects will ever happen.
	#
	# Define USE_NSEC below if you want git to care about sub-second file mtimes
	# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
	# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
	# randomly break unless your underlying filesystem supports those sub-second
	# times (my ext3 doesn't).
	#
	# Define USE_STDEV below if you want git to care about the underlying device
	# change being considered an inode change from the update-cache perspective.


	## Output files
	AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
	AC_OUTPUT


	## Cleanup
	rm -f "${config_append}"