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_ERROR([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# 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 56AC_DEFUN([GIT_PARSE_WITH], 57[PACKAGE=m4_toupper($1); \ 58if test "$withval" = "no"; then \ 59 m4_toupper(NO_$1)=YesPlease; \ 60elif test "$withval" = "yes"; then \ 61 m4_toupper(NO_$1)=; \ 62else \ 63 m4_toupper(NO_$1)=; \ 64 GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \ 65fi \ 66])# GIT_PARSE_WITH 67 68 69## Site configuration related to programs (before tests) 70## --with-PACKAGE[=ARG] and --without-PACKAGE 71# 72# Set lib to alternative name of lib directory (e.g. lib64) 73AC_ARG_WITH([lib], 74 [AS_HELP_STRING([--with-lib=ARG], 75 [ARG specifies alternative name for lib directory])], 76 [if test "$withval" = "no" || test "$withval" = "yes"; then \ 77 AC_MSG_WARN([You should provide name for --with-lib=ARG]); \ 78else \ 79 GIT_CONF_APPEND_LINE(lib=$withval); \ 80fi; \ 81],[]) 82# 83# Define SHELL_PATH to provide path to shell. 84GIT_ARG_SET_PATH(shell) 85# 86# Define PERL_PATH to provide path to Perl. 87GIT_ARG_SET_PATH(perl) 88# 89# Define ZLIB_PATH to provide path to zlib. 90GIT_ARG_SET_PATH(zlib) 91# 92# Declare the with-tcltk/without-tcltk options. 93AC_ARG_WITH(tcltk, 94AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)]) 95AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.]) 96AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if]) 97AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\ 98GIT_PARSE_WITH(tcltk)) 99# 100 101 102## Checks for programs. 103AC_MSG_NOTICE([CHECKS for programs]) 104# 105AC_PROG_CC([cc gcc]) 106#AC_PROG_INSTALL # needs install-sh or install.sh in sources 107AC_CHECK_TOOLS(AR, [gar ar], :) 108AC_CHECK_PROGS(TAR, [gtar tar]) 109# TCLTK_PATH will be set to some value if we want Tcl/Tk 110# or will be empty otherwise. 111if 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], ) 119 else 120 AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk]) 121 TCLTK_PATH="$with_tcltk" 122 AC_SUBST(TCLTK_PATH) 123 fi 124fi 125AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) 126if test -n "$ASCIIDOC"; then 127 AC_MSG_CHECKING([for asciidoc version]) 128 asciidoc_version=`$ASCIIDOC --version 2>&1` 129 case "${asciidoc_version}" in 130 asciidoc' '8*) 131 ASCIIDOC8=YesPlease 132 AC_MSG_RESULT([${asciidoc_version} > 7]) 133 ;; 134 asciidoc' '7*) 135 ASCIIDOC8= 136 AC_MSG_RESULT([${asciidoc_version}]) 137 ;; 138 *) 139 ASCIIDOC8= 140 AC_MSG_RESULT([${asciidoc_version} (unknown)]) 141 ;; 142 esac 143fi 144AC_SUBST(ASCIIDOC8) 145 146 147## Checks for libraries. 148AC_MSG_NOTICE([CHECKS for libraries]) 149# 150# Define NO_OPENSSL environment variable if you do not have OpenSSL. 151# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). 152AC_CHECK_LIB([crypto], [SHA1_Init], 153[NEEDS_SSL_WITH_CRYPTO=], 154[AC_CHECK_LIB([ssl], [SHA1_Init], 155 [NEEDS_SSL_WITH_CRYPTO=YesPlease 156 NEEDS_SSL_WITH_CRYPTO=], 157 [NO_OPENSSL=YesPlease])]) 158AC_SUBST(NEEDS_SSL_WITH_CRYPTO) 159AC_SUBST(NO_OPENSSL) 160# 161# Define NO_CURL if you do not have curl installed. git-http-pull and 162# git-http-push are not built, and you cannot use http:// and https:// 163# transports. 164AC_CHECK_LIB([curl], [curl_global_init], 165[NO_CURL=], 166[NO_CURL=YesPlease]) 167AC_SUBST(NO_CURL) 168# 169# Define NO_EXPAT if you do not have expat installed. git-http-push is 170# not built, and you cannot push using http:// and https:// transports. 171AC_CHECK_LIB([expat], [XML_ParserCreate], 172[NO_EXPAT=], 173[NO_EXPAT=YesPlease]) 174AC_SUBST(NO_EXPAT) 175# 176# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and 177# some Solaris installations). 178# Define NO_ICONV if neither libc nor libiconv support iconv. 179AC_DEFUN([ICONVTEST_SRC], [ 180#include <iconv.h> 181 182int main(void) 183{ 184 iconv_open("", ""); 185 return 0; 186} 187]) 188AC_MSG_CHECKING([for iconv in -lc]) 189AC_LINK_IFELSE(ICONVTEST_SRC, 190 [AC_MSG_RESULT([yes]) 191 NEEDS_LIBICONV=], 192 [AC_MSG_RESULT([no]) 193 old_LIBS="$LIBS" 194 LIBS="$LIBS -liconv" 195 AC_MSG_CHECKING([for iconv in -liconv]) 196 AC_LINK_IFELSE(ICONVTEST_SRC, 197 [AC_MSG_RESULT([yes]) 198 NEEDS_LIBICONV=YesPlease], 199 [AC_MSG_RESULT([no]) 200 NO_ICONV=YesPlease]) 201 LIBS="$old_LIBS"]) 202AC_SUBST(NEEDS_LIBICONV) 203AC_SUBST(NO_ICONV) 204test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv" 205# 206# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. 207AC_DEFUN([ZLIBTEST_SRC], [ 208#include <zlib.h> 209 210int main(void) 211{ 212 deflateBound(0, 0); 213 return 0; 214} 215]) 216AC_MSG_CHECKING([for deflateBound in -lz]) 217old_LIBS="$LIBS" 218LIBS="$LIBS -lz" 219AC_LINK_IFELSE(ZLIBTEST_SRC, 220 [AC_MSG_RESULT([yes])], 221 [AC_MSG_RESULT([no]) 222 NO_DEFLATE_BOUND=yes]) 223LIBS="$old_LIBS" 224AC_SUBST(NO_DEFLATE_BOUND) 225# 226# Define NEEDS_SOCKET if linking with libc is not enough (SunOS, 227# Patrick Mauritz). 228AC_CHECK_LIB([c], [socket], 229[NEEDS_SOCKET=], 230[NEEDS_SOCKET=YesPlease]) 231AC_SUBST(NEEDS_SOCKET) 232test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" 233 234 235## Checks for header files. 236AC_MSG_NOTICE([CHECKS for header files]) 237# 238# Define NO_SYS_SELECT_H if you don't have sys/select.h. 239AC_CHECK_HEADER([sys/select.h], 240[NO_SYS_SELECT_H=], 241[NO_SYS_SELECT_H=UnfortunatelyYes]) 242AC_SUBST(NO_SYS_SELECT_H) 243# 244# Define OLD_ICONV if your library has an old iconv(), where the second 245# (input buffer pointer) parameter is declared with type (const char **). 246AC_DEFUN([OLDICONVTEST_SRC], [[ 247#include <iconv.h> 248 249extern size_t iconv(iconv_t cd, 250 char **inbuf, size_t *inbytesleft, 251 char **outbuf, size_t *outbytesleft); 252 253int main(void) 254{ 255 return 0; 256} 257]]) 258AC_MSG_CHECKING([for old iconv()]) 259AC_COMPILE_IFELSE(OLDICONVTEST_SRC, 260 [AC_MSG_RESULT([no])], 261 [AC_MSG_RESULT([yes]) 262 OLD_ICONV=UnfortunatelyYes]) 263AC_SUBST(OLD_ICONV) 264 265 266## Checks for typedefs, structures, and compiler characteristics. 267AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) 268# 269# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. 270AC_CHECK_MEMBER(struct dirent.d_ino, 271[NO_D_INO_IN_DIRENT=], 272[NO_D_INO_IN_DIRENT=YesPlease], 273[#include <dirent.h>]) 274AC_SUBST(NO_D_INO_IN_DIRENT) 275# 276# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks 277# d_type in struct dirent (latest Cygwin -- will be fixed soonish). 278AC_CHECK_MEMBER(struct dirent.d_type, 279[NO_D_TYPE_IN_DIRENT=], 280[NO_D_TYPE_IN_DIRENT=YesPlease], 281[#include <dirent.h>]) 282AC_SUBST(NO_D_TYPE_IN_DIRENT) 283# 284# Define NO_SOCKADDR_STORAGE if your platform does not have struct 285# sockaddr_storage. 286AC_CHECK_TYPE(struct sockaddr_storage, 287[NO_SOCKADDR_STORAGE=], 288[NO_SOCKADDR_STORAGE=YesPlease],[ 289#include <sys/types.h> 290#include <sys/socket.h> 291]) 292AC_SUBST(NO_SOCKADDR_STORAGE) 293# 294# Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). 295AC_CHECK_TYPE([struct addrinfo],[ 296 AC_CHECK_FUNC([getaddrinfo], 297 [NO_IPV6=], 298 [NO_IPV6=YesPlease]) 299],[NO_IPV6=YesPlease],[ 300#include <sys/types.h> 301#include <sys/socket.h> 302#include <netdb.h> 303]) 304AC_SUBST(NO_IPV6) 305# 306# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.) 307# do not support the 'size specifiers' introduced by C99, namely ll, hh, 308# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t). 309# some C compilers supported these specifiers prior to C99 as an extension. 310AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers], 311 [ac_cv_c_c99_format], 312[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c 313AC_RUN_IFELSE( 314 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 315 [[char buf[64]; 316 if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5) 317 return 1; 318 else if (strcmp(buf, "12345")) 319 return 2;]])], 320 [ac_cv_c_c99_format=yes], 321 [ac_cv_c_c99_format=no]) 322]) 323if test $ac_cv_c_c99_format = no; then 324 NO_C99_FORMAT=YesPlease 325else 326 NO_C99_FORMAT= 327fi 328AC_SUBST(NO_C99_FORMAT) 329# 330# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() 331# or vsnprintf() return -1 instead of number of characters which would 332# have been written to the final string if enough space had been available. 333AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], 334 [ac_cv_snprintf_returns_bogus], 335[ 336AC_RUN_IFELSE( 337 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 338 #include "stdarg.h" 339 340 int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) 341 { 342 int ret; 343 va_list ap; 344 va_start(ap, format); 345 ret = vsnprintf(str, maxsize, format, ap); 346 va_end(ap); 347 return ret; 348 }], 349 [[char buf[6]; 350 if (test_vsnprintf(buf, 3, "%s", "12345") != 5 351 || strcmp(buf, "12")) return 1; 352 if (snprintf(buf, 3, "%s", "12345") != 5 353 || strcmp(buf, "12")) return 1]])], 354 [ac_cv_snprintf_returns_bogus=no], 355 [ac_cv_snprintf_returns_bogus=yes]) 356]) 357if test $ac_cv_snprintf_returns_bogus = yes; then 358 SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes 359else 360 SNPRINTF_RETURNS_BOGUS= 361fi 362AC_SUBST(SNPRINTF_RETURNS_BOGUS) 363 364 365## Checks for library functions. 366## (in default C library and libraries checked by AC_CHECK_LIB) 367AC_MSG_NOTICE([CHECKS for library functions]) 368# 369# Define NO_STRCASESTR if you don't have strcasestr. 370AC_CHECK_FUNC(strcasestr, 371[NO_STRCASESTR=], 372[NO_STRCASESTR=YesPlease]) 373AC_SUBST(NO_STRCASESTR) 374# 375# Define NO_MEMMEM if you don't have memmem. 376AC_CHECK_FUNC(memmem, 377[NO_MEMMEM=], 378[NO_MEMMEM=YesPlease]) 379AC_SUBST(NO_MEMMEM) 380# 381# Define NO_STRLCPY if you don't have strlcpy. 382AC_CHECK_FUNC(strlcpy, 383[NO_STRLCPY=], 384[NO_STRLCPY=YesPlease]) 385AC_SUBST(NO_STRLCPY) 386# 387# Define NO_STRTOUMAX if you don't have strtoumax in the C library. 388AC_CHECK_FUNC(strtoumax, 389[NO_STRTOUMAX=], 390[NO_STRTOUMAX=YesPlease]) 391AC_SUBST(NO_STRTOUMAX) 392# 393# Define NO_SETENV if you don't have setenv in the C library. 394AC_CHECK_FUNC(setenv, 395[NO_SETENV=], 396[NO_SETENV=YesPlease]) 397AC_SUBST(NO_SETENV) 398# 399# Define NO_UNSETENV if you don't have unsetenv in the C library. 400AC_CHECK_FUNC(unsetenv, 401[NO_UNSETENV=], 402[NO_UNSETENV=YesPlease]) 403AC_SUBST(NO_UNSETENV) 404# 405# Define NO_MKDTEMP if you don't have mkdtemp in the C library. 406AC_CHECK_FUNC(mkdtemp, 407[NO_MKDTEMP=], 408[NO_MKDTEMP=YesPlease]) 409AC_SUBST(NO_MKDTEMP) 410# 411# Define NO_MMAP if you want to avoid mmap. 412# 413# Define NO_ICONV if your libc does not properly support iconv. 414 415 416## Other checks. 417# Define USE_PIC if you need the main git objects to be built with -fPIC 418# in order to build and link perl/Git.so. x86-64 seems to need this. 419# 420# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. 421# Enable it on Windows. By default, symrefs are still used. 422 423## Site configuration (override autodetection) 424## --with-PACKAGE[=ARG] and --without-PACKAGE 425AC_MSG_NOTICE([CHECKS for site configuration]) 426# 427# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability 428# tests. These tests take up a significant amount of the total test time 429# but are not needed unless you plan to talk to SVN repos. 430# 431# Define MOZILLA_SHA1 environment variable when running make to make use of 432# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast 433# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default 434# choice) has very fast version optimized for i586. 435# 436# Define PPC_SHA1 environment variable when running make to make use of 437# a bundled SHA1 routine optimized for PowerPC. 438# 439# Define ARM_SHA1 environment variable when running make to make use of 440# a bundled SHA1 routine optimized for ARM. 441# 442# Define NO_OPENSSL environment variable if you do not have OpenSSL. 443# This also implies MOZILLA_SHA1. 444# 445# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in 446# /foo/bar/include and /foo/bar/lib directories. 447AC_ARG_WITH(openssl, 448AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) 449AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\ 450GIT_PARSE_WITH(openssl)) 451# 452# Define NO_CURL if you do not have curl installed. git-http-pull and 453# git-http-push are not built, and you cannot use http:// and https:// 454# transports. 455# 456# Define CURLDIR=/foo/bar if your curl header and library files are in 457# /foo/bar/include and /foo/bar/lib directories. 458AC_ARG_WITH(curl, 459AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) 460AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), 461GIT_PARSE_WITH(curl)) 462# 463# Define NO_EXPAT if you do not have expat installed. git-http-push is 464# not built, and you cannot push using http:// and https:// transports. 465# 466# Define EXPATDIR=/foo/bar if your expat header and library files are in 467# /foo/bar/include and /foo/bar/lib directories. 468AC_ARG_WITH(expat, 469AS_HELP_STRING([--with-expat], 470[support git-push using http:// and https:// transports via WebDAV (default is YES)]) 471AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), 472GIT_PARSE_WITH(expat)) 473# 474# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink 475# installed in /sw, but don't want GIT to link against any libraries 476# installed there. If defined you may specify your own (or Fink's) 477# include directories and library directories by defining CFLAGS 478# and LDFLAGS appropriately. 479# 480# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, 481# have DarwinPorts installed in /opt/local, but don't want GIT to 482# link against any libraries installed there. If defined you may 483# specify your own (or DarwinPort's) include directories and 484# library directories by defining CFLAGS and LDFLAGS appropriately. 485# 486# Define NO_MMAP if you want to avoid mmap. 487# 488# Define NO_ICONV if your libc does not properly support iconv. 489AC_ARG_WITH(iconv, 490AS_HELP_STRING([--without-iconv], 491[if your architecture doesn't properly support iconv]) 492AS_HELP_STRING([--with-iconv=PATH], 493[PATH is prefix for libiconv library and headers]) 494AS_HELP_STRING([], 495[used only if you need linking with libiconv]), 496GIT_PARSE_WITH(iconv)) 497 498## --enable-FEATURE[=ARG] and --disable-FEATURE 499# 500# Define USE_NSEC below if you want git to care about sub-second file mtimes 501# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and 502# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely 503# randomly break unless your underlying filesystem supports those sub-second 504# times (my ext3 doesn't). 505# 506# Define USE_STDEV below if you want git to care about the underlying device 507# change being considered an inode change from the update-index perspective. 508 509 510## Output files 511AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"]) 512AC_OUTPUT 513 514 515## Cleanup 516rm -f "${config_append}"