[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


## Site configuration
## --with-PACKAGE[=ARG] and --without-PACKAGE
#
# 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 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_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 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 NO_PYTHON if you want to lose all benefits of the recursive merge.
# Define PYTHON_PATH to provide path to Python.
AC_ARG_WITH(python,[AS_HELP_STRING([--with-python=PATH], [provide PATH to python])
AS_HELP_STRING([--no-python], [don't use python scripts])],
 [if test "$withval" = "no"; then \
    NO_PYTHON=YesPlease; \
  elif test "$withval" = "yes"; then \
    NO_PYTHON=; \
  else \
    NO_PYTHON=; \
    PYTHON_PATH=$withval; \
  fi; \
 ])
AC_SUBST(NO_PYTHON)
AC_SUBST(PYTHON_PATH)
#
## --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.


## 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.
# Define PYTHON_PATH to provide path to Python.
if test -z "$NO_PYTHON"; then
	if test -z "$PYTHON_PATH"; then
		AC_PATH_PROGS(PYTHON_PATH, [python python2.4 python2.3 python2])
	fi
	if test -n "$PYTHON_PATH"; then
		GIT_CONF_APPEND_LINE([PYTHON_PATH=@PYTHON_PATH@])
		NO_PYTHON=""
	fi
fi
GIT_CONF_APPEND_LINE([NO_PYTHON=@NO_PYTHON@])


## 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],
[GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=)],
[AC_CHECK_LIB([ssl], [SHA1_Init],
 [GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=YesPlease)
  GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=)],
 [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=)],
[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=)],
[GIT_CONF_APPEND_LINE(NO_EXPAT=YesPlease)])
#
# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
AC_CHECK_LIB([c], [iconv],
[GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=)],
[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],
[GIT_CONF_APPEND_LINE(NEEDS_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=)],
[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=)],
[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=)],
[GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=YesPlease)],
[#include <netinet/in.h>])
# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
AC_CHECK_TYPE([struct addrinfo],[
 AC_CHECK_FUNC([getaddrinfo],
  [GIT_CONF_APPEND_LINE(NO_IPV6=)],
  [GIT_CONF_APPEND_LINE(NO_IPV6=YesPlease)])
],[GIT_CONF_APPEND_LINE(NO_IPV6=YesPlease)],[
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
])
#
# 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
	GIT_CONF_APPEND_LINE(NO_C99_FORMAT=YesPlease)
else
	GIT_CONF_APPEND_LINE(NO_C99_FORMAT=)
fi


## 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=)],
[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=)],
[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=)],
[GIT_CONF_APPEND_LINE(NO_SETENV=YesPlease)])
#
# 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 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.


## 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
d3a6db98	49
633b4239	50
c4b1b140 JN	51	## Site configuration
	52	## --with-PACKAGE[=ARG] and --without-PACKAGE
	53	#
465e649d	54	# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
c4b1b140 JN	55	# tests. These tests take up a significant amount of the total test time
	56	# but are not needed unless you plan to talk to SVN repos.
	57	#
	58	# Define MOZILLA_SHA1 environment variable when running make to make use of
	59	# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
	60	# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
	61	# choice) has very fast version optimized for i586.
	62	#
	63	# Define PPC_SHA1 environment variable when running make to make use of
	64	# a bundled SHA1 routine optimized for PowerPC.
	65	#
	66	# Define ARM_SHA1 environment variable when running make to make use of
	67	# a bundled SHA1 routine optimized for ARM.
	68	#
	69	# Define NO_OPENSSL environment variable if you do not have OpenSSL.
	70	# This also implies MOZILLA_SHA1.
	71	#
	72	# Define NO_CURL if you do not have curl installed. git-http-pull and
	73	# git-http-push are not built, and you cannot use http:// and https://
	74	# transports.
	75	#
	76	# Define CURLDIR=/foo/bar if your curl header and library files are in
	77	# /foo/bar/include and /foo/bar/lib directories.
	78	#
	79	# Define NO_EXPAT if you do not have expat installed. git-http-push is
	80	# not built, and you cannot push using http:// and https:// transports.
	81	#
34d4a67f JN	82	# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
	83	# installed in /sw, but don't want GIT to link against any libraries
	84	# installed there. If defined you may specify your own (or Fink's)
	85	# include directories and library directories by defining CFLAGS
	86	# and LDFLAGS appropriately.
	87	#
	88	# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
	89	# have DarwinPorts installed in /opt/local, but don't want GIT to
	90	# link against any libraries installed there. If defined you may
	91	# specify your own (or DarwinPort's) include directories and
	92	# library directories by defining CFLAGS and LDFLAGS appropriately.
	93	#
c4b1b140 JN	94	# Define NO_MMAP if you want to avoid mmap.
c4b1b140 JN	95	#
465e649d JN	96	# Define SHELL_PATH to provide path to shell.
	97	GIT_ARG_SET_PATH(shell)
	98	#
	99	# Define PERL_PATH to provide path to Perl.
	100	GIT_ARG_SET_PATH(perl)
	101	#
	102	# Define NO_PYTHON if you want to lose all benefits of the recursive merge.
	103	# Define PYTHON_PATH to provide path to Python.
	104	AC_ARG_WITH(python,[AS_HELP_STRING([--with-python=PATH], [provide PATH to python])
	105	AS_HELP_STRING([--no-python], [don't use python scripts])],
	106	[if test "$withval" = "no"; then \
	107	NO_PYTHON=YesPlease; \
af6058cc JN	108	elif test "$withval" = "yes"; then \
	109	NO_PYTHON=; \
	110	else \
	111	NO_PYTHON=; \
465e649d JN	112	PYTHON_PATH=$withval; \
	113	fi; \
	114	])
	115	AC_SUBST(NO_PYTHON)
	116	AC_SUBST(PYTHON_PATH)
c4b1b140 JN	117	#
	118	## --enable-FEATURE[=ARG] and --disable-FEATURE
	119	# Define COLLISION_CHECK below if you believe that SHA1's
	120	# 1461501637330902918203684832716283019655932542976 hashes do not give you
	121	# sufficient guarantee that no collisions between objects will ever happen.
	122	#
	123	# Define USE_NSEC below if you want git to care about sub-second file mtimes
	124	# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
	125	# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
	126	# randomly break unless your underlying filesystem supports those sub-second
	127	# times (my ext3 doesn't).
	128	#
	129	# Define USE_STDEV below if you want git to care about the underlying device
	130	# change being considered an inode change from the update-cache perspective.
	131
	132
633b4239	133	## Checks for programs.
fd22c027	134	AC_MSG_NOTICE([CHECKS for programs])
f6719572	135	#
fd22c027 JN	136	AC_PROG_CC
	137	#AC_PROG_INSTALL # needs install-sh or install.sh in sources
	138	AC_CHECK_TOOL(AR, ar, :)
	139	AC_CHECK_PROGS(TAR, [gtar tar])
465e649d JN	140	#
	141	# Define NO_PYTHON if you want to lose all benefits of the recursive merge.
	142	# Define PYTHON_PATH to provide path to Python.
eb858c56	143	if test -z "$NO_PYTHON"; then
af6058cc JN	144	if test -z "$PYTHON_PATH"; then
	145	AC_PATH_PROGS(PYTHON_PATH, [python python2.4 python2.3 python2])
	146	fi
eb858c56 JN	147	if test -n "$PYTHON_PATH"; then
eb858c56 JN	148	GIT_CONF_APPEND_LINE([PYTHON_PATH=@PYTHON_PATH@])
af6058cc	149	NO_PYTHON=""
eb858c56	150	fi
eb858c56	151	fi
af6058cc	152	GIT_CONF_APPEND_LINE([NO_PYTHON=@NO_PYTHON@])
633b4239 JN	153
	154
	155	## Checks for libraries.
ebdf5321	156	AC_MSG_NOTICE([CHECKS for libraries])
f6719572	157	#
633b4239	158	# Define NO_OPENSSL environment variable if you do not have OpenSSL.
ebdf5321	159	# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
d5c31a1c JN	160	AC_CHECK_LIB([crypto], [SHA1_Init],
d5c31a1c JN	161	[GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=)],
3068f6c4	162	[AC_CHECK_LIB([ssl], [SHA1_Init],
d5c31a1c JN	163	[GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=YesPlease)
d5c31a1c JN	164	GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=)],
66142aa1	165	[GIT_CONF_APPEND_LINE(NO_OPENSSL=YesPlease)])])
f6719572	166	#
633b4239 JN	167	# Define NO_CURL if you do not have curl installed. git-http-pull and
	168	# git-http-push are not built, and you cannot use http:// and https://
	169	# transports.
d5c31a1c JN	170	AC_CHECK_LIB([curl], [curl_global_init],
d5c31a1c JN	171	[GIT_CONF_APPEND_LINE(NO_CURL=)],
66142aa1	172	[GIT_CONF_APPEND_LINE(NO_CURL=YesPlease)])
f6719572	173	#
633b4239 JN	174	# Define NO_EXPAT if you do not have expat installed. git-http-push is
633b4239 JN	175	# not built, and you cannot push using http:// and https:// transports.
d5c31a1c JN	176	AC_CHECK_LIB([expat], [XML_ParserCreate],
d5c31a1c JN	177	[GIT_CONF_APPEND_LINE(NO_EXPAT=)],
66142aa1	178	[GIT_CONF_APPEND_LINE(NO_EXPAT=YesPlease)])
f6719572	179	#
633b4239	180	# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
d5c31a1c JN	181	AC_CHECK_LIB([c], [iconv],
d5c31a1c JN	182	[GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=)],
f7b5e8d0	183	[GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=YesPlease)])
f6719572	184	#
633b4239 JN	185	# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
633b4239 JN	186	# Patrick Mauritz).
d5c31a1c JN	187	AC_CHECK_LIB([c], [socket],
	188	[GIT_CONF_APPEND_LINE(NEEDS_SOCKET=)],
	189	[GIT_CONF_APPEND_LINE(NEEDS_SOCKET=YesPlease)])
633b4239 JN	190
	191
	192	## Checks for header files.
	193
	194
	195	## Checks for typedefs, structures, and compiler characteristics.
eb0f255d	196	AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
f6719572	197	#
633b4239	198	# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
d5c31a1c JN	199	AC_CHECK_MEMBER(struct dirent.d_ino,
d5c31a1c JN	200	[GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=)],
66142aa1	201	[GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=YesPlease)],
eb0f255d	202	[#include <dirent.h>])
f6719572	203	#
633b4239 JN	204	# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
633b4239 JN	205	# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
d5c31a1c JN	206	AC_CHECK_MEMBER(struct dirent.d_type,
d5c31a1c JN	207	[GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=)],
66142aa1	208	[GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=YesPlease)],
eb0f255d	209	[#include <dirent.h>])
f6719572	210	#
633b4239 JN	211	# Define NO_SOCKADDR_STORAGE if your platform does not have struct
633b4239 JN	212	# sockaddr_storage.
d5c31a1c JN	213	AC_CHECK_TYPE(struct sockaddr_storage,
d5c31a1c JN	214	[GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=)],
66142aa1	215	[GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=YesPlease)],
eb0f255d	216	[#include <netinet/in.h>])
8c6ab35e JH	217	# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
8c6ab35e JH	218	AC_CHECK_TYPE([struct addrinfo],[
d5c31a1c JN	219	AC_CHECK_FUNC([getaddrinfo],
	220	[GIT_CONF_APPEND_LINE(NO_IPV6=)],
	221	[GIT_CONF_APPEND_LINE(NO_IPV6=YesPlease)])
	222	],[GIT_CONF_APPEND_LINE(NO_IPV6=YesPlease)],[
8c6ab35e JH	223	#include <sys/types.h>
	224	#include <sys/socket.h>
	225	#include <netdb.h>
	226	])
656517b9 JN	227	#
	228	# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
	229	# do not support the 'size specifiers' introduced by C99, namely ll, hh,
	230	# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
	231	# some C compilers supported these specifiers prior to C99 as an extension.
465e649d	232	AC_CACHE_CHECK(whether formatted IO functions support C99 size specifiers,
656517b9 JN	233	ac_cv_c_c99_format,
	234	[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
	235	AC_RUN_IFELSE(
	236	[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
	237	[[char buf[64];
	238	if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
	239	exit(1);
	240	else if (strcmp(buf, "12345"))
	241	exit(2);]])],
	242	[ac_cv_c_c99_format=yes],
	243	[ac_cv_c_c99_format=no])
	244	])
	245	if test $ac_cv_c_c99_format = no; then
	246	GIT_CONF_APPEND_LINE(NO_C99_FORMAT=YesPlease)
d5c31a1c JN	247	else
d5c31a1c JN	248	GIT_CONF_APPEND_LINE(NO_C99_FORMAT=)
656517b9	249	fi
633b4239 JN	250
	251
	252	## Checks for library functions.
1bbbadbc JN	253	## (in default C library and libraries checked by AC_CHECK_LIB)
1bbbadbc JN	254	AC_MSG_NOTICE([CHECKS for library functions])
f6719572	255	#
633b4239	256	# Define NO_STRCASESTR if you don't have strcasestr.
d5c31a1c JN	257	AC_CHECK_FUNC(strcasestr,
d5c31a1c JN	258	[GIT_CONF_APPEND_LINE(NO_STRCASESTR=)],
66142aa1	259	[GIT_CONF_APPEND_LINE(NO_STRCASESTR=YesPlease)])
f6719572	260	#
633b4239	261	# Define NO_STRLCPY if you don't have strlcpy.
d5c31a1c JN	262	AC_CHECK_FUNC(strlcpy,
d5c31a1c JN	263	[GIT_CONF_APPEND_LINE(NO_STRLCPY=)],
66142aa1	264	[GIT_CONF_APPEND_LINE(NO_STRLCPY=YesPlease)])
f6719572	265	#
633b4239	266	# Define NO_SETENV if you don't have setenv in the C library.
d5c31a1c JN	267	AC_CHECK_FUNC(setenv,
d5c31a1c JN	268	[GIT_CONF_APPEND_LINE(NO_SETENV=)],
66142aa1	269	[GIT_CONF_APPEND_LINE(NO_SETENV=YesPlease)])
f6719572	270	#
633b4239 JN	271	# Define NO_MMAP if you want to avoid mmap.
633b4239 JN	272	#
633b4239 JN	273	# Define NO_ICONV if your libc does not properly support iconv.
	274
	275
	276	## Other checks.
	277	# Define USE_PIC if you need the main git objects to be built with -fPIC
	278	# in order to build and link perl/Git.so. x86-64 seems to need this.
	279	#
	280	# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
	281	# Enable it on Windows. By default, symrefs are still used.
	282	#
	283	# Define WITH_OWN_SUBPROCESS_PY if you want to use with python 2.3.
	284	#
	285	# Define NO_ACCURATE_DIFF if your diff program at least sometimes misses
	286	# a missing newline at the end of the file.
	287
	288
633b4239	289	## Output files
d3a6db98	290	AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
55667714	291	AC_OUTPUT
d3a6db98	292
f6719572	293
d3a6db98 JN	294	## Cleanup
d3a6db98 JN	295	rm -f "${config_append}"