1# -*- Autoconf -*- 2# Process this file with autoconf to produce a configure script. 3 4AC_PREREQ(2.59) 5AC_INIT([git], [@@GIT_VERSION@@], [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# GIT_ARG_SET_PATH(PROGRAM) 24# ------------------------- 25# Provide --with-PROGRAM=PATH option to set PATH to PROGRAM 26AC_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) 37AC_DEFUN([GIT_CONF_APPEND_PATH], 38[PROGRAM=m4_toupper($1); \ 39if test "$withval" = "no"; then \ 40 AC_MSG_WARN([You cannot use git without $1]); \ 41else \ 42 if test "$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; \ 47fi; \ 48]) # GIT_CONF_APPEND_PATH 49 50 51## Site configuration 52## --with-PACKAGE[=ARG] and --without-PACKAGE 53# 54# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability 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# 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# 94# Define NO_MMAP if you want to avoid mmap. 95# 96# Define SHELL_PATH to provide path to shell. 97GIT_ARG_SET_PATH(shell) 98# 99# Define PERL_PATH to provide path to Perl. 100GIT_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. 104AC_ARG_WITH(python,[AS_HELP_STRING([--with-python=PATH], [provide PATH to python]) 105AS_HELP_STRING([--no-python], [don't use python scripts])], 106 [if test "$withval" = "no"; then \ 107 NO_PYTHON=YesPlease; \ 108 elif test "$withval" != "yes"; then \ 109 PYTHON_PATH=$withval; \ 110 fi; \ 111 ]) 112AC_SUBST(NO_PYTHON) 113AC_SUBST(PYTHON_PATH) 114# 115## --enable-FEATURE[=ARG] and --disable-FEATURE 116# Define COLLISION_CHECK below if you believe that SHA1's 117# 1461501637330902918203684832716283019655932542976 hashes do not give you 118# sufficient guarantee that no collisions between objects will ever happen. 119# 120# Define USE_NSEC below if you want git to care about sub-second file mtimes 121# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and 122# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely 123# randomly break unless your underlying filesystem supports those sub-second 124# times (my ext3 doesn't). 125# 126# Define USE_STDEV below if you want git to care about the underlying device 127# change being considered an inode change from the update-cache perspective. 128 129 130## Checks for programs. 131AC_MSG_NOTICE([CHECKS for programs]) 132# 133AC_PROG_CC 134#AC_PROG_INSTALL # needs install-sh or install.sh in sources 135AC_CHECK_TOOL(AR, ar, :) 136AC_CHECK_PROGS(TAR, [gtar tar]) 137# 138# Define NO_PYTHON if you want to lose all benefits of the recursive merge. 139# Define PYTHON_PATH to provide path to Python. 140if test -z "$NO_PYTHON"; then 141 AC_PATH_PROGS(PYTHON_PATH, [python2.4 python2.3 python2 python]) 142 if test -n "$PYTHON_PATH"; then 143 GIT_CONF_APPEND_LINE([PYTHON_PATH=@PYTHON_PATH@]) 144 else 145 GIT_CONF_APPEND_LINE([NO_PYTHON=@NO_PYTHON@]) 146 fi 147else 148 GIT_CONF_APPEND_LINE([NO_PYTHON=@NO_PYTHON@]) 149fi 150 151 152## Checks for libraries. 153AC_MSG_NOTICE([CHECKS for libraries]) 154# 155# Define NO_OPENSSL environment variable if you do not have OpenSSL. 156# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). 157AC_CHECK_LIB([crypto], [SHA1_Init], 158[GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=)], 159[AC_CHECK_LIB([ssl], [SHA1_Init], 160 [GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=YesPlease) 161 GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=)], 162 [GIT_CONF_APPEND_LINE(NO_OPENSSL=YesPlease)])]) 163# 164# Define NO_CURL if you do not have curl installed. git-http-pull and 165# git-http-push are not built, and you cannot use http:// and https:// 166# transports. 167AC_CHECK_LIB([curl], [curl_global_init], 168[GIT_CONF_APPEND_LINE(NO_CURL=)], 169[GIT_CONF_APPEND_LINE(NO_CURL=YesPlease)]) 170# 171# Define NO_EXPAT if you do not have expat installed. git-http-push is 172# not built, and you cannot push using http:// and https:// transports. 173AC_CHECK_LIB([expat], [XML_ParserCreate], 174[GIT_CONF_APPEND_LINE(NO_EXPAT=)], 175[GIT_CONF_APPEND_LINE(NO_EXPAT=YesPlease)]) 176# 177# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin). 178AC_CHECK_LIB([c], [iconv], 179[GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=)], 180[GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=YesPlease)]) 181# 182# Define NEEDS_SOCKET if linking with libc is not enough (SunOS, 183# Patrick Mauritz). 184AC_CHECK_LIB([c], [socket], 185[GIT_CONF_APPEND_LINE(NEEDS_SOCKET=)], 186[GIT_CONF_APPEND_LINE(NEEDS_SOCKET=YesPlease)]) 187 188 189## Checks for header files. 190 191 192## Checks for typedefs, structures, and compiler characteristics. 193AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) 194# 195# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. 196AC_CHECK_MEMBER(struct dirent.d_ino, 197[GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=)], 198[GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=YesPlease)], 199[#include <dirent.h>]) 200# 201# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks 202# d_type in struct dirent (latest Cygwin -- will be fixed soonish). 203AC_CHECK_MEMBER(struct dirent.d_type, 204[GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=)], 205[GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=YesPlease)], 206[#include <dirent.h>]) 207# 208# Define NO_SOCKADDR_STORAGE if your platform does not have struct 209# sockaddr_storage. 210AC_CHECK_TYPE(struct sockaddr_storage, 211[GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=)], 212[GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=YesPlease)], 213[#include <netinet/in.h>]) 214# Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). 215AC_CHECK_TYPE([struct addrinfo],[ 216 AC_CHECK_FUNC([getaddrinfo], 217 [GIT_CONF_APPEND_LINE(NO_IPV6=)], 218 [GIT_CONF_APPEND_LINE(NO_IPV6=YesPlease)]) 219],[GIT_CONF_APPEND_LINE(NO_IPV6=YesPlease)],[ 220#include <sys/types.h> 221#include <sys/socket.h> 222#include <netdb.h> 223]) 224# 225# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.) 226# do not support the 'size specifiers' introduced by C99, namely ll, hh, 227# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t). 228# some C compilers supported these specifiers prior to C99 as an extension. 229AC_CACHE_CHECK(whether formatted IO functions support C99 size specifiers, 230 ac_cv_c_c99_format, 231[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c 232AC_RUN_IFELSE( 233 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 234 [[char buf[64]; 235 if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5) 236 exit(1); 237 else if (strcmp(buf, "12345")) 238 exit(2);]])], 239 [ac_cv_c_c99_format=yes], 240 [ac_cv_c_c99_format=no]) 241]) 242if test $ac_cv_c_c99_format = no; then 243 GIT_CONF_APPEND_LINE(NO_C99_FORMAT=YesPlease) 244else 245 GIT_CONF_APPEND_LINE(NO_C99_FORMAT=) 246fi 247 248 249## Checks for library functions. 250## (in default C library and libraries checked by AC_CHECK_LIB) 251AC_MSG_NOTICE([CHECKS for library functions]) 252# 253# Define NO_STRCASESTR if you don't have strcasestr. 254AC_CHECK_FUNC(strcasestr, 255[GIT_CONF_APPEND_LINE(NO_STRCASESTR=)], 256[GIT_CONF_APPEND_LINE(NO_STRCASESTR=YesPlease)]) 257# 258# Define NO_STRLCPY if you don't have strlcpy. 259AC_CHECK_FUNC(strlcpy, 260[GIT_CONF_APPEND_LINE(NO_STRLCPY=)], 261[GIT_CONF_APPEND_LINE(NO_STRLCPY=YesPlease)]) 262# 263# Define NO_SETENV if you don't have setenv in the C library. 264AC_CHECK_FUNC(setenv, 265[GIT_CONF_APPEND_LINE(NO_SETENV=)], 266[GIT_CONF_APPEND_LINE(NO_SETENV=YesPlease)]) 267# 268# Define NO_MMAP if you want to avoid mmap. 269# 270# Define NO_ICONV if your libc does not properly support iconv. 271 272 273## Other checks. 274# Define USE_PIC if you need the main git objects to be built with -fPIC 275# in order to build and link perl/Git.so. x86-64 seems to need this. 276# 277# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. 278# Enable it on Windows. By default, symrefs are still used. 279# 280# Define WITH_OWN_SUBPROCESS_PY if you want to use with python 2.3. 281# 282# Define NO_ACCURATE_DIFF if your diff program at least sometimes misses 283# a missing newline at the end of the file. 284 285 286## Output files 287AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"]) 288AC_OUTPUT 289 290 291## Cleanup 292rm -f "${config_append}"