[thirdparty/git.git] / configure.ac

#                                               -*- 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


## 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 "$withval" = "no" -o "$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])
#AC_PROG_INSTALL		# needs install-sh or install.sh in sources
AC_CHECK_TOOL(AR, 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

## 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 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],
[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="$LIBS -liconv"
#
# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
# Patrick Mauritz).
AC_CHECK_LIB([c], [socket],
[NEEDS_SOCKET=],
[NEEDS_SOCKET=YesPlease])
AC_SUBST(NEEDS_SOCKET)
test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"


## Checks for header files.


## 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],[
 AC_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)
		  exit(1);
		else if (strcmp(buf, "12345"))
		  exit(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)


## 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,
[NO_STRCASESTR=],
[NO_STRCASESTR=YesPlease])
AC_SUBST(NO_STRCASESTR)
#
# Define NO_STRLCPY if you don't have strlcpy.
AC_CHECK_FUNC(strlcpy,
[NO_STRLCPY=],
[NO_STRLCPY=YesPlease])
AC_SUBST(NO_STRLCPY)
#
# Define NO_SETENV if you don't have setenv in the C library.
AC_CHECK_FUNC(setenv,
[NO_SETENV=],
[NO_SETENV=YesPlease])
AC_SUBST(NO_SETENV)
#
# 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.

## 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-cache perspective.


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


## Cleanup
rm -f "${config_append}"
Commit	Line	Data
55667714 JN	1	# -- Autoconf --
	2	# Process this file with autoconf to produce a configure script.
	3
	4	AC_PREREQ(2.59)
3900145e	5	AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org])
55667714 JN	6
	7	AC_CONFIG_SRCDIR([git.c])
	8
	9	config_file=config.mak.autogen
d3a6db98	10	config_append=config.mak.append
55667714 JN	11	config_in=config.mak.in
55667714 JN	12
d3a6db98 JN	13	echo "# ${config_append}. Generated by configure." > "${config_append}"
	14
	15
	16	## Definitions of macros
	17	# GIT_CONF_APPEND_LINE(LINE)
	18	# --------------------------
	19	# Append LINE to file ${config_append}
	20	AC_DEFUN([GIT_CONF_APPEND_LINE],
	21	[echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE
657b062d JN	22	#
	23	# GIT_ARG_SET_PATH(PROGRAM)
	24	# -------------------------
	25	# Provide --with-PROGRAM=PATH option to set PATH to PROGRAM
	26	AC_DEFUN([GIT_ARG_SET_PATH],
	27	[AC_ARG_WITH([$1],
	28	[AS_HELP_STRING([--with-$1=PATH],
	29	[provide PATH to $1])],
	30	[GIT_CONF_APPEND_PATH($1)],[])
	31	])# GIT_ARG_SET_PATH
	32	#
	33	# GIT_CONF_APPEND_PATH(PROGRAM)
	34	# ------------------------------
	35	# Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH
	36	# Used by GIT_ARG_SET_PATH(PROGRAM)
	37	AC_DEFUN([GIT_CONF_APPEND_PATH],
	38	[PROGRAM=m4_toupper($1); \
	39	if test "$withval" = "no"; then \
b52b1d43	40	AC_MSG_ERROR([You cannot use git without $1]); \
657b062d JN	41	else \
	42	if test "$withval" = "yes"; then \
	43	AC_MSG_WARN([You should provide path for --with-$1=PATH]); \
	44	else \
	45	GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \
	46	fi; \
	47	fi; \
	48	]) # GIT_CONF_APPEND_PATH
a20b4d89 JN	49	#
	50	# GIT_PARSE_WITH(PACKAGE)
	51	# -----------------------
	52	# For use in AC_ARG_WITH action-if-found, for packages default ON.
	53	# * Set NO_PACKAGE=YesPlease for --without-PACKAGE
	54	# * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH
	55	# * Unset NO_PACKAGE for --with-PACKAGE without ARG
	56	AC_DEFUN([GIT_PARSE_WITH],
	57	[PACKAGE=m4_toupper($1); \
	58	if test "$withval" = "no"; then \
	59	m4_toupper(NO_$1)=YesPlease; \
	60	elif test "$withval" = "yes"; then \
	61	m4_toupper(NO_$1)=; \
	62	else \
	63	m4_toupper(NO_$1)=; \
	64	GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \
	65	fi \
	66	])# GIT_PARSE_WITH
d3a6db98	67
633b4239	68
a20b4d89	69	## Site configuration related to programs (before tests)
c4b1b140 JN	70	## --with-PACKAGE[=ARG] and --without-PACKAGE
c4b1b140 JN	71	#
10861bea RS	72	# Set lib to alternative name of lib directory (e.g. lib64)
	73	AC_ARG_WITH([lib],
	74	[AS_HELP_STRING([--with-lib=ARG],
	75	[ARG specifies alternative name for lib directory])],
	76	[if test "$withval" = "no" -o "$withval" = "yes"; then \
	77	AC_MSG_WARN([You should provide name for --with-lib=ARG]); \
	78	else \
	79	GIT_CONF_APPEND_LINE(lib=$withval); \
	80	fi; \
	81	],[])
	82	#
465e649d JN	83	# Define SHELL_PATH to provide path to shell.
	84	GIT_ARG_SET_PATH(shell)
	85	#
	86	# Define PERL_PATH to provide path to Perl.
	87	GIT_ARG_SET_PATH(perl)
	88	#
bef19da9 RS	89	# Define ZLIB_PATH to provide path to zlib.
	90	GIT_ARG_SET_PATH(zlib)
	91	#
81b63c70 ER	92	# Declare the with-tcltk/without-tcltk options.
	93	AC_ARG_WITH(tcltk,
	94	AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)])
	95	AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.])
	96	AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if])
	97	AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\
	98	GIT_PARSE_WITH(tcltk))
	99	#
c4b1b140 JN	100
c4b1b140 JN	101
633b4239	102	## Checks for programs.
fd22c027	103	AC_MSG_NOTICE([CHECKS for programs])
f6719572	104	#
60a144f2	105	AC_PROG_CC([cc gcc])
fd22c027 JN	106	#AC_PROG_INSTALL # needs install-sh or install.sh in sources
	107	AC_CHECK_TOOL(AR, ar, :)
	108	AC_CHECK_PROGS(TAR, [gtar tar])
81b63c70 ER	109	# TCLTK_PATH will be set to some value if we want Tcl/Tk
	110	# or will be empty otherwise.
	111	if test -z "$NO_TCLTK"; then
	112	if test "$with_tcltk" = ""; then
	113	# No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'.
	114	TCLTK_PATH=wish
	115	AC_SUBST(TCLTK_PATH)
	116	elif test "$with_tcltk" = "yes"; then
	117	# Tcl/Tk check requested.
	118	AC_CHECK_PROGS(TCLTK_PATH, [wish], )
68daee08	119	else
81b63c70 ER	120	AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk])
	121	TCLTK_PATH="$with_tcltk"
	122	AC_SUBST(TCLTK_PATH)
81b63c70 ER	123	fi
81b63c70 ER	124	fi
633b4239 JN	125
633b4239 JN	126	## Checks for libraries.
ebdf5321	127	AC_MSG_NOTICE([CHECKS for libraries])
f6719572	128	#
633b4239	129	# Define NO_OPENSSL environment variable if you do not have OpenSSL.
ebdf5321	130	# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
d5c31a1c	131	AC_CHECK_LIB([crypto], [SHA1_Init],
424adc50	132	[NEEDS_SSL_WITH_CRYPTO=],
3068f6c4	133	[AC_CHECK_LIB([ssl], [SHA1_Init],
424adc50 JN	134	[NEEDS_SSL_WITH_CRYPTO=YesPlease
	135	NEEDS_SSL_WITH_CRYPTO=],
	136	[NO_OPENSSL=YesPlease])])
	137	AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
	138	AC_SUBST(NO_OPENSSL)
f6719572	139	#
633b4239 JN	140	# Define NO_CURL if you do not have curl installed. git-http-pull and
	141	# git-http-push are not built, and you cannot use http:// and https://
	142	# transports.
d5c31a1c	143	AC_CHECK_LIB([curl], [curl_global_init],
424adc50 JN	144	[NO_CURL=],
	145	[NO_CURL=YesPlease])
	146	AC_SUBST(NO_CURL)
f6719572	147	#
633b4239 JN	148	# Define NO_EXPAT if you do not have expat installed. git-http-push is
633b4239 JN	149	# not built, and you cannot push using http:// and https:// transports.
d5c31a1c	150	AC_CHECK_LIB([expat], [XML_ParserCreate],
424adc50 JN	151	[NO_EXPAT=],
	152	[NO_EXPAT=YesPlease])
	153	AC_SUBST(NO_EXPAT)
f6719572	154	#
e63ccb84 FK	155	# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and
e63ccb84 FK	156	# some Solaris installations).
6ff88de7	157	# Define NO_ICONV if neither libc nor libiconv support iconv.
e63ccb84 FK	158	AC_DEFUN([ICONVTEST_SRC], [
	159	#include <iconv.h>
	160
	161	int main(void)
	162	{
	163	iconv_open("", "");
	164	return 0;
	165	}
	166	])
	167	AC_MSG_CHECKING([for iconv in -lc])
	168	AC_LINK_IFELSE(ICONVTEST_SRC,
	169	[AC_MSG_RESULT([yes])
	170	NEEDS_LIBICONV=],
	171	[AC_MSG_RESULT([no])
	172	old_LIBS="$LIBS"
	173	LIBS="$LIBS -liconv"
	174	AC_MSG_CHECKING([for iconv in -liconv])
	175	AC_LINK_IFELSE(ICONVTEST_SRC,
	176	[AC_MSG_RESULT([yes])
	177	NEEDS_LIBICONV=YesPlease],
	178	[AC_MSG_RESULT([no])
	179	NO_ICONV=YesPlease])
	180	LIBS="$old_LIBS"])
424adc50	181	AC_SUBST(NEEDS_LIBICONV)
baf1219a	182	AC_SUBST(NO_ICONV)
825b045f	183	test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv"
f6719572	184	#
633b4239 JN	185	# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
633b4239 JN	186	# Patrick Mauritz).
d5c31a1c	187	AC_CHECK_LIB([c], [socket],
424adc50 JN	188	[NEEDS_SOCKET=],
	189	[NEEDS_SOCKET=YesPlease])
	190	AC_SUBST(NEEDS_SOCKET)
d1b9944d	191	test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
633b4239 JN	192
	193
	194	## Checks for header files.
	195
	196
	197	## Checks for typedefs, structures, and compiler characteristics.
eb0f255d	198	AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
f6719572	199	#
633b4239	200	# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
d5c31a1c	201	AC_CHECK_MEMBER(struct dirent.d_ino,
424adc50 JN	202	[NO_D_INO_IN_DIRENT=],
424adc50 JN	203	[NO_D_INO_IN_DIRENT=YesPlease],
eb0f255d	204	[#include <dirent.h>])
424adc50	205	AC_SUBST(NO_D_INO_IN_DIRENT)
f6719572	206	#
633b4239 JN	207	# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
633b4239 JN	208	# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
d5c31a1c	209	AC_CHECK_MEMBER(struct dirent.d_type,
424adc50 JN	210	[NO_D_TYPE_IN_DIRENT=],
424adc50 JN	211	[NO_D_TYPE_IN_DIRENT=YesPlease],
eb0f255d	212	[#include <dirent.h>])
424adc50	213	AC_SUBST(NO_D_TYPE_IN_DIRENT)
f6719572	214	#
633b4239 JN	215	# Define NO_SOCKADDR_STORAGE if your platform does not have struct
633b4239 JN	216	# sockaddr_storage.
d5c31a1c	217	AC_CHECK_TYPE(struct sockaddr_storage,
424adc50	218	[NO_SOCKADDR_STORAGE=],
ab5573ae DS	219	[NO_SOCKADDR_STORAGE=YesPlease],[
	220	#include <sys/types.h>
	221	#include <sys/socket.h>
	222	])
424adc50 JN	223	AC_SUBST(NO_SOCKADDR_STORAGE)
424adc50 JN	224	#
8c6ab35e JH	225	# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
8c6ab35e JH	226	AC_CHECK_TYPE([struct addrinfo],[
d5c31a1c	227	AC_CHECK_FUNC([getaddrinfo],
424adc50 JN	228	[NO_IPV6=],
	229	[NO_IPV6=YesPlease])
	230	],[NO_IPV6=YesPlease],[
8c6ab35e JH	231	#include <sys/types.h>
	232	#include <sys/socket.h>
	233	#include <netdb.h>
	234	])
424adc50	235	AC_SUBST(NO_IPV6)
656517b9 JN	236	#
	237	# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
	238	# do not support the 'size specifiers' introduced by C99, namely ll, hh,
	239	# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
	240	# some C compilers supported these specifiers prior to C99 as an extension.
f685d07d JN	241	AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers],
f685d07d JN	242	[ac_cv_c_c99_format],
656517b9 JN	243	[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
	244	AC_RUN_IFELSE(
	245	[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
	246	[[char buf[64];
	247	if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
	248	exit(1);
	249	else if (strcmp(buf, "12345"))
	250	exit(2);]])],
	251	[ac_cv_c_c99_format=yes],
	252	[ac_cv_c_c99_format=no])
	253	])
	254	if test $ac_cv_c_c99_format = no; then
424adc50	255	NO_C99_FORMAT=YesPlease
d5c31a1c	256	else
424adc50	257	NO_C99_FORMAT=
656517b9	258	fi
424adc50	259	AC_SUBST(NO_C99_FORMAT)
633b4239	260
a20b4d89	261
633b4239	262	## Checks for library functions.
1bbbadbc JN	263	## (in default C library and libraries checked by AC_CHECK_LIB)
1bbbadbc JN	264	AC_MSG_NOTICE([CHECKS for library functions])
f6719572	265	#
633b4239	266	# Define NO_STRCASESTR if you don't have strcasestr.
d5c31a1c	267	AC_CHECK_FUNC(strcasestr,
424adc50 JN	268	[NO_STRCASESTR=],
	269	[NO_STRCASESTR=YesPlease])
	270	AC_SUBST(NO_STRCASESTR)
f6719572	271	#
633b4239	272	# Define NO_STRLCPY if you don't have strlcpy.
d5c31a1c	273	AC_CHECK_FUNC(strlcpy,
424adc50 JN	274	[NO_STRLCPY=],
	275	[NO_STRLCPY=YesPlease])
	276	AC_SUBST(NO_STRLCPY)
f6719572	277	#
633b4239	278	# Define NO_SETENV if you don't have setenv in the C library.
d5c31a1c	279	AC_CHECK_FUNC(setenv,
424adc50 JN	280	[NO_SETENV=],
	281	[NO_SETENV=YesPlease])
	282	AC_SUBST(NO_SETENV)
f6719572	283	#
633b4239 JN	284	# Define NO_MMAP if you want to avoid mmap.
633b4239 JN	285	#
633b4239 JN	286	# Define NO_ICONV if your libc does not properly support iconv.
	287
	288
	289	## Other checks.
	290	# Define USE_PIC if you need the main git objects to be built with -fPIC
	291	# in order to build and link perl/Git.so. x86-64 seems to need this.
	292	#
	293	# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
	294	# Enable it on Windows. By default, symrefs are still used.
633b4239	295
a20b4d89 JN	296	## Site configuration (override autodetection)
	297	## --with-PACKAGE[=ARG] and --without-PACKAGE
	298	AC_MSG_NOTICE([CHECKS for site configuration])
	299	#
	300	# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
	301	# tests. These tests take up a significant amount of the total test time
	302	# but are not needed unless you plan to talk to SVN repos.
	303	#
	304	# Define MOZILLA_SHA1 environment variable when running make to make use of
	305	# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
	306	# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
	307	# choice) has very fast version optimized for i586.
	308	#
	309	# Define PPC_SHA1 environment variable when running make to make use of
	310	# a bundled SHA1 routine optimized for PowerPC.
	311	#
	312	# Define ARM_SHA1 environment variable when running make to make use of
	313	# a bundled SHA1 routine optimized for ARM.
	314	#
	315	# Define NO_OPENSSL environment variable if you do not have OpenSSL.
	316	# This also implies MOZILLA_SHA1.
	317	#
	318	# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in
	319	# /foo/bar/include and /foo/bar/lib directories.
	320	AC_ARG_WITH(openssl,
	321	AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
	322	AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\
	323	GIT_PARSE_WITH(openssl))
	324	#
	325	# Define NO_CURL if you do not have curl installed. git-http-pull and
	326	# git-http-push are not built, and you cannot use http:// and https://
	327	# transports.
	328	#
	329	# Define CURLDIR=/foo/bar if your curl header and library files are in
	330	# /foo/bar/include and /foo/bar/lib directories.
	331	AC_ARG_WITH(curl,
	332	AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)])
	333	AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]),
	334	GIT_PARSE_WITH(curl))
	335	#
	336	# Define NO_EXPAT if you do not have expat installed. git-http-push is
	337	# not built, and you cannot push using http:// and https:// transports.
	338	#
	339	# Define EXPATDIR=/foo/bar if your expat header and library files are in
	340	# /foo/bar/include and /foo/bar/lib directories.
	341	AC_ARG_WITH(expat,
	342	AS_HELP_STRING([--with-expat],
	343	[support git-push using http:// and https:// transports via WebDAV (default is YES)])
	344	AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]),
	345	GIT_PARSE_WITH(expat))
	346	#
	347	# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
	348	# installed in /sw, but don't want GIT to link against any libraries
	349	# installed there. If defined you may specify your own (or Fink's)
	350	# include directories and library directories by defining CFLAGS
	351	# and LDFLAGS appropriately.
	352	#
	353	# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
	354	# have DarwinPorts installed in /opt/local, but don't want GIT to
	355	# link against any libraries installed there. If defined you may
	356	# specify your own (or DarwinPort's) include directories and
	357	# library directories by defining CFLAGS and LDFLAGS appropriately.
	358	#
	359	# Define NO_MMAP if you want to avoid mmap.
baf1219a JN	360	#
	361	# Define NO_ICONV if your libc does not properly support iconv.
	362	AC_ARG_WITH(iconv,
	363	AS_HELP_STRING([--without-iconv],
	364	[if your architecture doesn't properly support iconv])
	365	AS_HELP_STRING([--with-iconv=PATH],
	366	[PATH is prefix for libiconv library and headers])
	367	AS_HELP_STRING([],
	368	[used only if you need linking with libiconv]),
	369	GIT_PARSE_WITH(iconv))
a20b4d89 JN	370
	371	## --enable-FEATURE[=ARG] and --disable-FEATURE
	372	#
a20b4d89 JN	373	# Define USE_NSEC below if you want git to care about sub-second file mtimes
	374	# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
	375	# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
	376	# randomly break unless your underlying filesystem supports those sub-second
	377	# times (my ext3 doesn't).
	378	#
	379	# Define USE_STDEV below if you want git to care about the underlying device
	380	# change being considered an inode change from the update-cache perspective.
	381
	382
633b4239	383	## Output files
d3a6db98	384	AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
55667714	385	AC_OUTPUT
d3a6db98	386
f6719572	387
d3a6db98 JN	388	## Cleanup
d3a6db98 JN	389	rm -f "${config_append}"