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-rw-r--r--configure.ac602
1 files changed, 602 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
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--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,602 @@
+# -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.59)
+AC_INIT([git], [@@GIT_VERSION@@], [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
+#
+# GIT_ARG_SET_PATH(PROGRAM)
+# -------------------------
+# Provide --with-PROGRAM=PATH option to set PATH to PROGRAM
+AC_DEFUN([GIT_ARG_SET_PATH],
+[AC_ARG_WITH([$1],
+ [AS_HELP_STRING([--with-$1=PATH],
+ [provide PATH to $1])],
+ [GIT_CONF_APPEND_PATH($1)],[])
+])# GIT_ARG_SET_PATH
+#
+# GIT_CONF_APPEND_PATH(PROGRAM)
+# ------------------------------
+# Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH
+# Used by GIT_ARG_SET_PATH(PROGRAM)
+AC_DEFUN([GIT_CONF_APPEND_PATH],
+[PROGRAM=m4_toupper($1); \
+if test "$withval" = "no"; then \
+ AC_MSG_ERROR([You cannot use git without $1]); \
+else \
+ if test "$withval" = "yes"; then \
+ AC_MSG_WARN([You should provide path for --with-$1=PATH]); \
+ else \
+ GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \
+ fi; \
+fi; \
+]) # GIT_CONF_APPEND_PATH
+#
+# GIT_PARSE_WITH(PACKAGE)
+# -----------------------
+# For use in AC_ARG_WITH action-if-found, for packages default ON.
+# * Set NO_PACKAGE=YesPlease for --without-PACKAGE
+# * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH
+# * Unset NO_PACKAGE for --with-PACKAGE without ARG
+AC_DEFUN([GIT_PARSE_WITH],
+[PACKAGE=m4_toupper($1); \
+if test "$withval" = "no"; then \
+ m4_toupper(NO_$1)=YesPlease; \
+elif test "$withval" = "yes"; then \
+ m4_toupper(NO_$1)=; \
+else \
+ m4_toupper(NO_$1)=; \
+ GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \
+fi \
+])# GIT_PARSE_WITH
+
+dnl
+dnl GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE)
+dnl -----------------------------------------
+dnl Similar to AC_CHECK_FUNC, but on systems that do not generate
+dnl warnings for missing prototypes (e.g. FreeBSD when compiling without
+dnl -Wall), it does not work. By looking for function definition in
+dnl libraries, this problem can be worked around.
+AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[
+ AC_SEARCH_LIBS([$1],,
+ [$2],[$3])
+],[$3])])
+## Site configuration related to programs (before tests)
+## --with-PACKAGE[=ARG] and --without-PACKAGE
+#
+# Set lib to alternative name of lib directory (e.g. lib64)
+AC_ARG_WITH([lib],
+ [AS_HELP_STRING([--with-lib=ARG],
+ [ARG specifies alternative name for lib directory])],
+ [if test "$withval" = "no" || test "$withval" = "yes"; then \
+ AC_MSG_WARN([You should provide name for --with-lib=ARG]); \
+else \
+ GIT_CONF_APPEND_LINE(lib=$withval); \
+fi; \
+],[])
+#
+# Define SHELL_PATH to provide path to shell.
+GIT_ARG_SET_PATH(shell)
+#
+# Define PERL_PATH to provide path to Perl.
+GIT_ARG_SET_PATH(perl)
+#
+# Define ZLIB_PATH to provide path to zlib.
+GIT_ARG_SET_PATH(zlib)
+#
+# Declare the with-tcltk/without-tcltk options.
+AC_ARG_WITH(tcltk,
+AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)])
+AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.])
+AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if])
+AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\
+GIT_PARSE_WITH(tcltk))
+#
+
+
+## Checks for programs.
+AC_MSG_NOTICE([CHECKS for programs])
+#
+AC_PROG_CC([cc gcc])
+# which switch to pass runtime path to dynamic libraries to the linker
+AC_CACHE_CHECK([if linker supports -R], ld_dashr, [
+ SAVE_LDFLAGS="${LDFLAGS}"
+ LDFLAGS="${SAVE_LDFLAGS} -R /"
+ AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_dashr=yes], [ld_dashr=no])
+ LDFLAGS="${SAVE_LDFLAGS}"
+])
+if test "$ld_dashr" = "yes"; then
+ AC_SUBST(CC_LD_DYNPATH, [-R])
+else
+ AC_CACHE_CHECK([if linker supports -Wl,-rpath,], ld_wl_rpath, [
+ SAVE_LDFLAGS="${LDFLAGS}"
+ LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/"
+ AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_wl_rpath=yes], [ld_wl_rpath=no])
+ LDFLAGS="${SAVE_LD_FLAGS}"
+ ])
+ if test "$ld_wl_rpath" = "yes"; then
+ AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,])
+ else
+ AC_CACHE_CHECK([if linker supports -rpath], ld_rpath, [
+ SAVE_LDFLAGS="${LDFLAGS}"
+ LDFLAGS="${SAVE_LDFLAGS} -rpath /"
+ AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_rpath=yes], [ld_rpath=no])
+ LDFLAGS="${SAVE_LD_FLAGS}"
+ ])
+ if test "$ld_rpath" = "yes"; then
+ AC_SUBST(CC_LD_DYNPATH, [-rpath])
+ else
+ AC_MSG_WARN([linker does not support runtime path to dynamic libraries])
+ fi
+ fi
+fi
+#AC_PROG_INSTALL # needs install-sh or install.sh in sources
+AC_CHECK_TOOLS(AR, [gar ar], :)
+AC_CHECK_PROGS(TAR, [gtar tar])
+# TCLTK_PATH will be set to some value if we want Tcl/Tk
+# or will be empty otherwise.
+if test -z "$NO_TCLTK"; then
+ if test "$with_tcltk" = ""; then
+ # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'.
+ TCLTK_PATH=wish
+ AC_SUBST(TCLTK_PATH)
+ elif test "$with_tcltk" = "yes"; then
+ # Tcl/Tk check requested.
+ AC_CHECK_PROGS(TCLTK_PATH, [wish], )
+ else
+ AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk])
+ TCLTK_PATH="$with_tcltk"
+ AC_SUBST(TCLTK_PATH)
+ fi
+fi
+AC_CHECK_PROGS(ASCIIDOC, [asciidoc])
+if test -n "$ASCIIDOC"; then
+ AC_MSG_CHECKING([for asciidoc version])
+ asciidoc_version=`$ASCIIDOC --version 2>&1`
+ case "${asciidoc_version}" in
+ asciidoc' '8*)
+ ASCIIDOC8=YesPlease
+ AC_MSG_RESULT([${asciidoc_version} > 7])
+ ;;
+ asciidoc' '7*)
+ ASCIIDOC8=
+ AC_MSG_RESULT([${asciidoc_version}])
+ ;;
+ *)
+ ASCIIDOC8=
+ AC_MSG_RESULT([${asciidoc_version} (unknown)])
+ ;;
+ esac
+fi
+AC_SUBST(ASCIIDOC8)
+
+
+## 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([crypto], [SHA1_Init],
+[NEEDS_SSL_WITH_CRYPTO=],
+[AC_CHECK_LIB([ssl], [SHA1_Init],
+ [NEEDS_SSL_WITH_CRYPTO=YesPlease
+ NEEDS_SSL_WITH_CRYPTO=],
+ [NO_OPENSSL=YesPlease])])
+AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
+AC_SUBST(NO_OPENSSL)
+#
+# Define NO_CURL if you do not have libcurl 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],
+[NO_CURL=],
+[NO_CURL=YesPlease])
+AC_SUBST(NO_CURL)
+#
+# 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],
+[NO_EXPAT=],
+[NO_EXPAT=YesPlease])
+AC_SUBST(NO_EXPAT)
+#
+# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and
+# some Solaris installations).
+# Define NO_ICONV if neither libc nor libiconv support iconv.
+AC_DEFUN([ICONVTEST_SRC], [
+#include <iconv.h>
+
+int main(void)
+{
+ iconv_open("", "");
+ return 0;
+}
+])
+AC_MSG_CHECKING([for iconv in -lc])
+AC_LINK_IFELSE(ICONVTEST_SRC,
+ [AC_MSG_RESULT([yes])
+ NEEDS_LIBICONV=],
+ [AC_MSG_RESULT([no])
+ old_LIBS="$LIBS"
+ LIBS="$LIBS -liconv"
+ AC_MSG_CHECKING([for iconv in -liconv])
+ AC_LINK_IFELSE(ICONVTEST_SRC,
+ [AC_MSG_RESULT([yes])
+ NEEDS_LIBICONV=YesPlease],
+ [AC_MSG_RESULT([no])
+ NO_ICONV=YesPlease])
+ LIBS="$old_LIBS"])
+AC_SUBST(NEEDS_LIBICONV)
+AC_SUBST(NO_ICONV)
+test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv"
+#
+# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib.
+AC_DEFUN([ZLIBTEST_SRC], [
+#include <zlib.h>
+
+int main(void)
+{
+ deflateBound(0, 0);
+ return 0;
+}
+])
+AC_MSG_CHECKING([for deflateBound in -lz])
+old_LIBS="$LIBS"
+LIBS="$LIBS -lz"
+AC_LINK_IFELSE(ZLIBTEST_SRC,
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ NO_DEFLATE_BOUND=yes])
+LIBS="$old_LIBS"
+AC_SUBST(NO_DEFLATE_BOUND)
+#
+# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
+# Patrick Mauritz).
+AC_CHECK_LIB([c], [socket],
+[NEEDS_SOCKET=],
+[NEEDS_SOCKET=YesPlease])
+AC_SUBST(NEEDS_SOCKET)
+test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
+
+
+## Checks for header files.
+AC_MSG_NOTICE([CHECKS for header files])
+#
+# Define NO_SYS_SELECT_H if you don't have sys/select.h.
+AC_CHECK_HEADER([sys/select.h],
+[NO_SYS_SELECT_H=],
+[NO_SYS_SELECT_H=UnfortunatelyYes])
+AC_SUBST(NO_SYS_SELECT_H)
+#
+# Define OLD_ICONV if your library has an old iconv(), where the second
+# (input buffer pointer) parameter is declared with type (const char **).
+AC_DEFUN([OLDICONVTEST_SRC], [[
+#include <iconv.h>
+
+extern size_t iconv(iconv_t cd,
+ char **inbuf, size_t *inbytesleft,
+ char **outbuf, size_t *outbytesleft);
+
+int main(void)
+{
+ return 0;
+}
+]])
+AC_MSG_CHECKING([for old iconv()])
+AC_COMPILE_IFELSE(OLDICONVTEST_SRC,
+ [AC_MSG_RESULT([no])],
+ [AC_MSG_RESULT([yes])
+ OLD_ICONV=UnfortunatelyYes])
+AC_SUBST(OLD_ICONV)
+
+
+## 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,
+[NO_D_INO_IN_DIRENT=],
+[NO_D_INO_IN_DIRENT=YesPlease],
+[#include <dirent.h>])
+AC_SUBST(NO_D_INO_IN_DIRENT)
+#
+# 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,
+[NO_D_TYPE_IN_DIRENT=],
+[NO_D_TYPE_IN_DIRENT=YesPlease],
+[#include <dirent.h>])
+AC_SUBST(NO_D_TYPE_IN_DIRENT)
+#
+# Define NO_SOCKADDR_STORAGE if your platform does not have struct
+# sockaddr_storage.
+AC_CHECK_TYPE(struct sockaddr_storage,
+[NO_SOCKADDR_STORAGE=],
+[NO_SOCKADDR_STORAGE=YesPlease],[
+#include <sys/types.h>
+#include <sys/socket.h>
+])
+AC_SUBST(NO_SOCKADDR_STORAGE)
+#
+# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
+AC_CHECK_TYPE([struct addrinfo],[
+ GIT_CHECK_FUNC([getaddrinfo],
+ [NO_IPV6=],
+ [NO_IPV6=YesPlease])
+],[NO_IPV6=YesPlease],[
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+])
+AC_SUBST(NO_IPV6)
+#
+# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
+# do not support the 'size specifiers' introduced by C99, namely ll, hh,
+# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
+# some C compilers supported these specifiers prior to C99 as an extension.
+AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers],
+ [ac_cv_c_c99_format],
+[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
+AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+ [[char buf[64];
+ if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
+ return 1;
+ else if (strcmp(buf, "12345"))
+ return 2;]])],
+ [ac_cv_c_c99_format=yes],
+ [ac_cv_c_c99_format=no])
+])
+if test $ac_cv_c_c99_format = no; then
+ NO_C99_FORMAT=YesPlease
+else
+ NO_C99_FORMAT=
+fi
+AC_SUBST(NO_C99_FORMAT)
+#
+# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds
+# when attempting to read from an fopen'ed directory.
+AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory],
+ [ac_cv_fread_reads_directories],
+[
+AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+ [[char c;
+ FILE *f = fopen(".", "r");
+ return f && fread(&c, 1, 1, f)]])],
+ [ac_cv_fread_reads_directories=no],
+ [ac_cv_fread_reads_directories=yes])
+])
+if test $ac_cv_fread_reads_directories = yes; then
+ FREAD_READS_DIRECTORIES=UnfortunatelyYes
+else
+ FREAD_READS_DIRECTORIES=
+fi
+AC_SUBST(FREAD_READS_DIRECTORIES)
+#
+# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf()
+# or vsnprintf() return -1 instead of number of characters which would
+# have been written to the final string if enough space had been available.
+AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value],
+ [ac_cv_snprintf_returns_bogus],
+[
+AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+ #include "stdarg.h"
+
+ int test_vsnprintf(char *str, size_t maxsize, const char *format, ...)
+ {
+ int ret;
+ va_list ap;
+ va_start(ap, format);
+ ret = vsnprintf(str, maxsize, format, ap);
+ va_end(ap);
+ return ret;
+ }],
+ [[char buf[6];
+ if (test_vsnprintf(buf, 3, "%s", "12345") != 5
+ || strcmp(buf, "12")) return 1;
+ if (snprintf(buf, 3, "%s", "12345") != 5
+ || strcmp(buf, "12")) return 1]])],
+ [ac_cv_snprintf_returns_bogus=no],
+ [ac_cv_snprintf_returns_bogus=yes])
+])
+if test $ac_cv_snprintf_returns_bogus = yes; then
+ SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes
+else
+ SNPRINTF_RETURNS_BOGUS=
+fi
+AC_SUBST(SNPRINTF_RETURNS_BOGUS)
+
+
+## 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.
+GIT_CHECK_FUNC(strcasestr,
+[NO_STRCASESTR=],
+[NO_STRCASESTR=YesPlease])
+AC_SUBST(NO_STRCASESTR)
+#
+# Define NO_MEMMEM if you don't have memmem.
+GIT_CHECK_FUNC(memmem,
+[NO_MEMMEM=],
+[NO_MEMMEM=YesPlease])
+AC_SUBST(NO_MEMMEM)
+#
+# Define NO_STRLCPY if you don't have strlcpy.
+GIT_CHECK_FUNC(strlcpy,
+[NO_STRLCPY=],
+[NO_STRLCPY=YesPlease])
+AC_SUBST(NO_STRLCPY)
+#
+# Define NO_UINTMAX_T if your platform does not have uintmax_t
+AC_CHECK_TYPE(uintmax_t,
+[NO_UINTMAX_T=],
+[NO_UINTMAX_T=YesPlease],[
+#include <inttypes.h>
+])
+AC_SUBST(NO_UINTMAX_T)
+#
+# Define NO_STRTOUMAX if you don't have strtoumax in the C library.
+GIT_CHECK_FUNC(strtoumax,
+[NO_STRTOUMAX=],
+[NO_STRTOUMAX=YesPlease])
+AC_SUBST(NO_STRTOUMAX)
+#
+# Define NO_SETENV if you don't have setenv in the C library.
+GIT_CHECK_FUNC(setenv,
+[NO_SETENV=],
+[NO_SETENV=YesPlease])
+AC_SUBST(NO_SETENV)
+#
+# Define NO_UNSETENV if you don't have unsetenv in the C library.
+GIT_CHECK_FUNC(unsetenv,
+[NO_UNSETENV=],
+[NO_UNSETENV=YesPlease])
+AC_SUBST(NO_UNSETENV)
+#
+# Define NO_MKDTEMP if you don't have mkdtemp in the C library.
+GIT_CHECK_FUNC(mkdtemp,
+[NO_MKDTEMP=],
+[NO_MKDTEMP=YesPlease])
+AC_SUBST(NO_MKDTEMP)
+#
+# Define NO_MMAP if you want to avoid mmap.
+#
+# 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 PTHREAD_LIBS to the linker flag used for Pthread support.
+AC_LANG_CONFTEST([AC_LANG_PROGRAM(
+ [[#include <pthread.h>]],
+ [[pthread_mutex_t test_mutex;]]
+)])
+${CC} -pthread conftest.c -o conftest.o > /dev/null 2>&1
+if test $? -eq 0;then
+ PTHREAD_LIBS="-pthread"
+else
+ ${CC} -lpthread conftest.c -o conftest.o > /dev/null 2>&1
+ if test $? -eq 0;then
+ PTHREAD_LIBS="-lpthread"
+ fi
+fi
+AC_SUBST(PTHREAD_LIBS)
+
+## Site configuration (override autodetection)
+## --with-PACKAGE[=ARG] and --without-PACKAGE
+AC_MSG_NOTICE([CHECKS for site configuration])
+#
+# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
+# 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 OPENSSLDIR=/foo/bar if your openssl header and library files are in
+# /foo/bar/include and /foo/bar/lib directories.
+AC_ARG_WITH(openssl,
+AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
+AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\
+GIT_PARSE_WITH(openssl))
+#
+# 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.
+AC_ARG_WITH(curl,
+AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)])
+AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]),
+GIT_PARSE_WITH(curl))
+#
+# 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 EXPATDIR=/foo/bar if your expat header and library files are in
+# /foo/bar/include and /foo/bar/lib directories.
+AC_ARG_WITH(expat,
+AS_HELP_STRING([--with-expat],
+[support git-push using http:// and https:// transports via WebDAV (default is YES)])
+AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]),
+GIT_PARSE_WITH(expat))
+#
+# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
+# installed in /sw, but don't want GIT to link against any libraries
+# installed there. If defined you may specify your own (or Fink's)
+# include directories and library directories by defining CFLAGS
+# and LDFLAGS appropriately.
+#
+# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
+# have DarwinPorts installed in /opt/local, but don't want GIT to
+# link against any libraries installed there. If defined you may
+# specify your own (or DarwinPort's) include directories and
+# library directories by defining CFLAGS and LDFLAGS appropriately.
+#
+# Define NO_MMAP if you want to avoid mmap.
+#
+# Define NO_ICONV if your libc does not properly support iconv.
+AC_ARG_WITH(iconv,
+AS_HELP_STRING([--without-iconv],
+[if your architecture doesn't properly support iconv])
+AS_HELP_STRING([--with-iconv=PATH],
+[PATH is prefix for libiconv library and headers])
+AS_HELP_STRING([],
+[used only if you need linking with libiconv]),
+GIT_PARSE_WITH(iconv))
+
+## --enable-FEATURE[=ARG] and --disable-FEATURE
+#
+# 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-index perspective.
+
+
+## Output files
+AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
+AC_OUTPUT
+
+
+## Cleanup
+rm -f "${config_append}"