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 m4_toupper($1)_PATH=$withval; \ 46 AC_MSG_NOTICE([Setting m4_toupper($1)_PATH to $withval]); \ 47 GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \ 48 fi; \ 49fi; \ 50]) # GIT_CONF_APPEND_PATH 51# 52# GIT_PARSE_WITH(PACKAGE) 53# ----------------------- 54# For use in AC_ARG_WITH action-if-found, for packages default ON. 55# * Set NO_PACKAGE=YesPlease for --without-PACKAGE 56# * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH 57# * Unset NO_PACKAGE for --with-PACKAGE without ARG 58AC_DEFUN([GIT_PARSE_WITH], 59[PACKAGE=m4_toupper($1); \ 60if test "$withval" = "no"; then \ 61 m4_toupper(NO_$1)=YesPlease; \ 62elif test "$withval" = "yes"; then \ 63 m4_toupper(NO_$1)=; \ 64else \ 65 m4_toupper(NO_$1)=; \ 66 m4_toupper($1)DIR=$withval; \ 67 AC_MSG_NOTICE([Setting m4_toupper($1)DIR to $withval]); \ 68 GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \ 69fi \ 70])# GIT_PARSE_WITH 71 72dnl 73dnl GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE) 74dnl ----------------------------------------- 75dnl Similar to AC_CHECK_FUNC, but on systems that do not generate 76dnl warnings for missing prototypes (e.g. FreeBSD when compiling without 77dnl -Wall), it does not work. By looking for function definition in 78dnl libraries, this problem can be worked around. 79AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[ 80 AC_SEARCH_LIBS([$1],, 81 [$2],[$3]) 82],[$3])]) 83 84dnl 85dnl GIT_STASH_FLAGS(BASEPATH_VAR) 86dnl ----------------------------- 87dnl Allow for easy stashing of LDFLAGS and CPPFLAGS before running 88dnl tests that may want to take user settings into account. 89AC_DEFUN([GIT_STASH_FLAGS],[ 90if test -n "$1"; then 91 old_CPPFLAGS="$CPPFLAGS" 92 old_LDFLAGS="$LDFLAGS" 93 CPPFLAGS="-I$1/include $CPPFLAGS" 94 LDFLAGS="-L$1/$lib $LDFLAGS" 95fi 96]) 97 98dnl 99dnl GIT_UNSTASH_FLAGS(BASEPATH_VAR) 100dnl ----------------------------- 101dnl Restore the stashed *FLAGS values. 102AC_DEFUN([GIT_UNSTASH_FLAGS],[ 103if test -n "$1"; then 104 CPPFLAGS="$old_CPPFLAGS" 105 LDFLAGS="$old_LDFLAGS" 106fi 107]) 108 109## Site configuration related to programs (before tests) 110## --with-PACKAGE[=ARG] and --without-PACKAGE 111# 112# Set lib to alternative name of lib directory (e.g. lib64) 113AC_ARG_WITH([lib], 114 [AS_HELP_STRING([--with-lib=ARG], 115 [ARG specifies alternative name for lib directory])], 116 [if test "$withval" = "no" || test "$withval" = "yes"; then \ 117 AC_MSG_WARN([You should provide name for --with-lib=ARG]); \ 118else \ 119 lib=$withval; \ 120 AC_MSG_NOTICE([Setting lib to '$lib']); \ 121 GIT_CONF_APPEND_LINE(lib=$withval); \ 122fi; \ 123],[]) 124 125if test -z "$lib"; then 126 AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) 127 lib=lib 128fi 129 130## Site configuration (override autodetection) 131## --with-PACKAGE[=ARG] and --without-PACKAGE 132AC_MSG_NOTICE([CHECKS for site configuration]) 133# 134# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability 135# tests. These tests take up a significant amount of the total test time 136# but are not needed unless you plan to talk to SVN repos. 137# 138# Define MOZILLA_SHA1 environment variable when running make to make use of 139# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast 140# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default 141# choice) has very fast version optimized for i586. 142# 143# Define PPC_SHA1 environment variable when running make to make use of 144# a bundled SHA1 routine optimized for PowerPC. 145# 146# Define ARM_SHA1 environment variable when running make to make use of 147# a bundled SHA1 routine optimized for ARM. 148# 149# Define NO_OPENSSL environment variable if you do not have OpenSSL. 150# This also implies MOZILLA_SHA1. 151# 152# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in 153# /foo/bar/include and /foo/bar/lib directories. 154AC_ARG_WITH(openssl, 155AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) 156AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\ 157GIT_PARSE_WITH(openssl)) 158# 159# Define NO_CURL if you do not have curl installed. git-http-pull and 160# git-http-push are not built, and you cannot use http:// and https:// 161# transports. 162# 163# Define CURLDIR=/foo/bar if your curl header and library files are in 164# /foo/bar/include and /foo/bar/lib directories. 165AC_ARG_WITH(curl, 166AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) 167AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), 168GIT_PARSE_WITH(curl)) 169# 170# Define NO_EXPAT if you do not have expat installed. git-http-push is 171# not built, and you cannot push using http:// and https:// transports. 172# 173# Define EXPATDIR=/foo/bar if your expat header and library files are in 174# /foo/bar/include and /foo/bar/lib directories. 175AC_ARG_WITH(expat, 176AS_HELP_STRING([--with-expat], 177[support git-push using http:// and https:// transports via WebDAV (default is YES)]) 178AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), 179GIT_PARSE_WITH(expat)) 180# 181# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink 182# installed in /sw, but don't want GIT to link against any libraries 183# installed there. If defined you may specify your own (or Fink's) 184# include directories and library directories by defining CFLAGS 185# and LDFLAGS appropriately. 186# 187# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, 188# have DarwinPorts installed in /opt/local, but don't want GIT to 189# link against any libraries installed there. If defined you may 190# specify your own (or DarwinPort's) include directories and 191# library directories by defining CFLAGS and LDFLAGS appropriately. 192# 193# Define NO_MMAP if you want to avoid mmap. 194# 195# Define NO_ICONV if your libc does not properly support iconv. 196AC_ARG_WITH(iconv, 197AS_HELP_STRING([--without-iconv], 198[if your architecture doesn't properly support iconv]) 199AS_HELP_STRING([--with-iconv=PATH], 200[PATH is prefix for libiconv library and headers]) 201AS_HELP_STRING([], 202[used only if you need linking with libiconv]), 203GIT_PARSE_WITH(iconv)) 204 205## --enable-FEATURE[=ARG] and --disable-FEATURE 206# 207# Define USE_NSEC below if you want git to care about sub-second file mtimes 208# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and 209# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely 210# randomly break unless your underlying filesystem supports those sub-second 211# times (my ext3 doesn't). 212# 213# Define USE_STDEV below if you want git to care about the underlying device 214# change being considered an inode change from the update-index perspective. 215 216# 217# Define SHELL_PATH to provide path to shell. 218GIT_ARG_SET_PATH(shell) 219# 220# Define PERL_PATH to provide path to Perl. 221GIT_ARG_SET_PATH(perl) 222# 223# Define ZLIB_PATH to provide path to zlib. 224GIT_ARG_SET_PATH(zlib) 225# 226# Declare the with-tcltk/without-tcltk options. 227AC_ARG_WITH(tcltk, 228AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)]) 229AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.]) 230AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if]) 231AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\ 232GIT_PARSE_WITH(tcltk)) 233# 234 235 236## Checks for programs. 237AC_MSG_NOTICE([CHECKS for programs]) 238# 239AC_PROG_CC([cc gcc]) 240# which switch to pass runtime path to dynamic libraries to the linker 241AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [ 242 SAVE_LDFLAGS="${LDFLAGS}" 243 LDFLAGS="${SAVE_LDFLAGS} -R /" 244 AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no]) 245 LDFLAGS="${SAVE_LDFLAGS}" 246]) 247if test "$git_cv_ld_dashr" = "yes"; then 248 AC_SUBST(CC_LD_DYNPATH, [-R]) 249else 250 AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [ 251 SAVE_LDFLAGS="${LDFLAGS}" 252 LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/" 253 AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no]) 254 LDFLAGS="${SAVE_LDFLAGS}" 255 ]) 256 if test "$git_cv_ld_wl_rpath" = "yes"; then 257 AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,]) 258 else 259 AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [ 260 SAVE_LDFLAGS="${LDFLAGS}" 261 LDFLAGS="${SAVE_LDFLAGS} -rpath /" 262 AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no]) 263 LDFLAGS="${SAVE_LDFLAGS}" 264 ]) 265 if test "$git_cv_ld_rpath" = "yes"; then 266 AC_SUBST(CC_LD_DYNPATH, [-rpath]) 267 else 268 AC_MSG_WARN([linker does not support runtime path to dynamic libraries]) 269 fi 270 fi 271fi 272#AC_PROG_INSTALL # needs install-sh or install.sh in sources 273AC_CHECK_TOOLS(AR, [gar ar], :) 274AC_CHECK_PROGS(TAR, [gtar tar]) 275# TCLTK_PATH will be set to some value if we want Tcl/Tk 276# or will be empty otherwise. 277if test -z "$NO_TCLTK"; then 278 if test "$with_tcltk" = ""; then 279 # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'. 280 TCLTK_PATH=wish 281 AC_SUBST(TCLTK_PATH) 282 elif test "$with_tcltk" = "yes"; then 283 # Tcl/Tk check requested. 284 AC_CHECK_PROGS(TCLTK_PATH, [wish], ) 285 else 286 AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk]) 287 TCLTK_PATH="$with_tcltk" 288 AC_SUBST(TCLTK_PATH) 289 fi 290fi 291AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) 292if test -n "$ASCIIDOC"; then 293 AC_MSG_CHECKING([for asciidoc version]) 294 asciidoc_version=`$ASCIIDOC --version 2>&1` 295 case "${asciidoc_version}" in 296 asciidoc' '8*) 297 ASCIIDOC8=YesPlease 298 AC_MSG_RESULT([${asciidoc_version} > 7]) 299 ;; 300 asciidoc' '7*) 301 ASCIIDOC8= 302 AC_MSG_RESULT([${asciidoc_version}]) 303 ;; 304 *) 305 ASCIIDOC8= 306 AC_MSG_RESULT([${asciidoc_version} (unknown)]) 307 ;; 308 esac 309fi 310AC_SUBST(ASCIIDOC8) 311 312 313## Checks for libraries. 314AC_MSG_NOTICE([CHECKS for libraries]) 315# 316# Define NO_OPENSSL environment variable if you do not have OpenSSL. 317# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). 318AC_CHECK_LIB([crypto], [SHA1_Init], 319[NEEDS_SSL_WITH_CRYPTO=], 320[AC_CHECK_LIB([ssl], [SHA1_Init], 321 [NEEDS_SSL_WITH_CRYPTO=YesPlease 322 NEEDS_SSL_WITH_CRYPTO=], 323 [NO_OPENSSL=YesPlease])]) 324AC_SUBST(NEEDS_SSL_WITH_CRYPTO) 325AC_SUBST(NO_OPENSSL) 326# 327# Define NO_CURL if you do not have libcurl installed. git-http-pull and 328# git-http-push are not built, and you cannot use http:// and https:// 329# transports. 330AC_CHECK_LIB([curl], [curl_global_init], 331[NO_CURL=], 332[NO_CURL=YesPlease]) 333AC_SUBST(NO_CURL) 334# 335# Define NO_EXPAT if you do not have expat installed. git-http-push is 336# not built, and you cannot push using http:// and https:// transports. 337AC_CHECK_LIB([expat], [XML_ParserCreate], 338[NO_EXPAT=], 339[NO_EXPAT=YesPlease]) 340AC_SUBST(NO_EXPAT) 341# 342# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and 343# some Solaris installations). 344# Define NO_ICONV if neither libc nor libiconv support iconv. 345AC_DEFUN([ICONVTEST_SRC], [ 346#include <iconv.h> 347 348int main(void) 349{ 350 iconv_open("", ""); 351 return 0; 352} 353]) 354AC_MSG_CHECKING([for iconv in -lc]) 355AC_LINK_IFELSE(ICONVTEST_SRC, 356 [AC_MSG_RESULT([yes]) 357 NEEDS_LIBICONV=], 358 [AC_MSG_RESULT([no]) 359 old_LIBS="$LIBS" 360 LIBS="$LIBS -liconv" 361 AC_MSG_CHECKING([for iconv in -liconv]) 362 AC_LINK_IFELSE(ICONVTEST_SRC, 363 [AC_MSG_RESULT([yes]) 364 NEEDS_LIBICONV=YesPlease], 365 [AC_MSG_RESULT([no]) 366 NO_ICONV=YesPlease]) 367 LIBS="$old_LIBS"]) 368AC_SUBST(NEEDS_LIBICONV) 369AC_SUBST(NO_ICONV) 370test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv" 371# 372# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. 373AC_DEFUN([ZLIBTEST_SRC], [ 374#include <zlib.h> 375 376int main(void) 377{ 378 deflateBound(0, 0); 379 return 0; 380} 381]) 382AC_MSG_CHECKING([for deflateBound in -lz]) 383old_LIBS="$LIBS" 384LIBS="$LIBS -lz" 385AC_LINK_IFELSE(ZLIBTEST_SRC, 386 [AC_MSG_RESULT([yes])], 387 [AC_MSG_RESULT([no]) 388 NO_DEFLATE_BOUND=yes]) 389LIBS="$old_LIBS" 390AC_SUBST(NO_DEFLATE_BOUND) 391# 392# Define NEEDS_SOCKET if linking with libc is not enough (SunOS, 393# Patrick Mauritz). 394AC_CHECK_LIB([c], [socket], 395[NEEDS_SOCKET=], 396[NEEDS_SOCKET=YesPlease]) 397AC_SUBST(NEEDS_SOCKET) 398test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" 399 400 401## Checks for header files. 402AC_MSG_NOTICE([CHECKS for header files]) 403# 404# Define NO_SYS_SELECT_H if you don't have sys/select.h. 405AC_CHECK_HEADER([sys/select.h], 406[NO_SYS_SELECT_H=], 407[NO_SYS_SELECT_H=UnfortunatelyYes]) 408AC_SUBST(NO_SYS_SELECT_H) 409# 410# Define OLD_ICONV if your library has an old iconv(), where the second 411# (input buffer pointer) parameter is declared with type (const char **). 412AC_DEFUN([OLDICONVTEST_SRC], [[ 413#include <iconv.h> 414 415extern size_t iconv(iconv_t cd, 416 char **inbuf, size_t *inbytesleft, 417 char **outbuf, size_t *outbytesleft); 418 419int main(void) 420{ 421 return 0; 422} 423]]) 424AC_MSG_CHECKING([for old iconv()]) 425AC_COMPILE_IFELSE(OLDICONVTEST_SRC, 426 [AC_MSG_RESULT([no])], 427 [AC_MSG_RESULT([yes]) 428 OLD_ICONV=UnfortunatelyYes]) 429AC_SUBST(OLD_ICONV) 430 431 432## Checks for typedefs, structures, and compiler characteristics. 433AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) 434# 435# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. 436AC_CHECK_MEMBER(struct dirent.d_ino, 437[NO_D_INO_IN_DIRENT=], 438[NO_D_INO_IN_DIRENT=YesPlease], 439[#include <dirent.h>]) 440AC_SUBST(NO_D_INO_IN_DIRENT) 441# 442# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks 443# d_type in struct dirent (latest Cygwin -- will be fixed soonish). 444AC_CHECK_MEMBER(struct dirent.d_type, 445[NO_D_TYPE_IN_DIRENT=], 446[NO_D_TYPE_IN_DIRENT=YesPlease], 447[#include <dirent.h>]) 448AC_SUBST(NO_D_TYPE_IN_DIRENT) 449# 450# Define NO_SOCKADDR_STORAGE if your platform does not have struct 451# sockaddr_storage. 452AC_CHECK_TYPE(struct sockaddr_storage, 453[NO_SOCKADDR_STORAGE=], 454[NO_SOCKADDR_STORAGE=YesPlease],[ 455#include <sys/types.h> 456#include <sys/socket.h> 457]) 458AC_SUBST(NO_SOCKADDR_STORAGE) 459# 460# Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). 461AC_CHECK_TYPE([struct addrinfo],[ 462 GIT_CHECK_FUNC([getaddrinfo], 463 [NO_IPV6=], 464 [NO_IPV6=YesPlease]) 465],[NO_IPV6=YesPlease],[ 466#include <sys/types.h> 467#include <sys/socket.h> 468#include <netdb.h> 469]) 470AC_SUBST(NO_IPV6) 471# 472# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.) 473# do not support the 'size specifiers' introduced by C99, namely ll, hh, 474# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t). 475# some C compilers supported these specifiers prior to C99 as an extension. 476AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers], 477 [ac_cv_c_c99_format], 478[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c 479AC_RUN_IFELSE( 480 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 481 [[char buf[64]; 482 if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5) 483 return 1; 484 else if (strcmp(buf, "12345")) 485 return 2;]])], 486 [ac_cv_c_c99_format=yes], 487 [ac_cv_c_c99_format=no]) 488]) 489if test $ac_cv_c_c99_format = no; then 490 NO_C99_FORMAT=YesPlease 491else 492 NO_C99_FORMAT= 493fi 494AC_SUBST(NO_C99_FORMAT) 495# 496# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds 497# when attempting to read from an fopen'ed directory. 498AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], 499 [ac_cv_fread_reads_directories], 500[ 501AC_RUN_IFELSE( 502 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 503 [[char c; 504 FILE *f = fopen(".", "r"); 505 return f && fread(&c, 1, 1, f)]])], 506 [ac_cv_fread_reads_directories=no], 507 [ac_cv_fread_reads_directories=yes]) 508]) 509if test $ac_cv_fread_reads_directories = yes; then 510 FREAD_READS_DIRECTORIES=UnfortunatelyYes 511else 512 FREAD_READS_DIRECTORIES= 513fi 514AC_SUBST(FREAD_READS_DIRECTORIES) 515# 516# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() 517# or vsnprintf() return -1 instead of number of characters which would 518# have been written to the final string if enough space had been available. 519AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], 520 [ac_cv_snprintf_returns_bogus], 521[ 522AC_RUN_IFELSE( 523 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 524 #include "stdarg.h" 525 526 int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) 527 { 528 int ret; 529 va_list ap; 530 va_start(ap, format); 531 ret = vsnprintf(str, maxsize, format, ap); 532 va_end(ap); 533 return ret; 534 }], 535 [[char buf[6]; 536 if (test_vsnprintf(buf, 3, "%s", "12345") != 5 537 || strcmp(buf, "12")) return 1; 538 if (snprintf(buf, 3, "%s", "12345") != 5 539 || strcmp(buf, "12")) return 1]])], 540 [ac_cv_snprintf_returns_bogus=no], 541 [ac_cv_snprintf_returns_bogus=yes]) 542]) 543if test $ac_cv_snprintf_returns_bogus = yes; then 544 SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes 545else 546 SNPRINTF_RETURNS_BOGUS= 547fi 548AC_SUBST(SNPRINTF_RETURNS_BOGUS) 549 550 551## Checks for library functions. 552## (in default C library and libraries checked by AC_CHECK_LIB) 553AC_MSG_NOTICE([CHECKS for library functions]) 554# 555# Define NO_STRCASESTR if you don't have strcasestr. 556GIT_CHECK_FUNC(strcasestr, 557[NO_STRCASESTR=], 558[NO_STRCASESTR=YesPlease]) 559AC_SUBST(NO_STRCASESTR) 560# 561# Define NO_MEMMEM if you don't have memmem. 562GIT_CHECK_FUNC(memmem, 563[NO_MEMMEM=], 564[NO_MEMMEM=YesPlease]) 565AC_SUBST(NO_MEMMEM) 566# 567# Define NO_STRLCPY if you don't have strlcpy. 568GIT_CHECK_FUNC(strlcpy, 569[NO_STRLCPY=], 570[NO_STRLCPY=YesPlease]) 571AC_SUBST(NO_STRLCPY) 572# 573# Define NO_UINTMAX_T if your platform does not have uintmax_t 574AC_CHECK_TYPE(uintmax_t, 575[NO_UINTMAX_T=], 576[NO_UINTMAX_T=YesPlease],[ 577#include <inttypes.h> 578]) 579AC_SUBST(NO_UINTMAX_T) 580# 581# Define NO_STRTOUMAX if you don't have strtoumax in the C library. 582GIT_CHECK_FUNC(strtoumax, 583[NO_STRTOUMAX=], 584[NO_STRTOUMAX=YesPlease]) 585AC_SUBST(NO_STRTOUMAX) 586# 587# Define NO_SETENV if you don't have setenv in the C library. 588GIT_CHECK_FUNC(setenv, 589[NO_SETENV=], 590[NO_SETENV=YesPlease]) 591AC_SUBST(NO_SETENV) 592# 593# Define NO_UNSETENV if you don't have unsetenv in the C library. 594GIT_CHECK_FUNC(unsetenv, 595[NO_UNSETENV=], 596[NO_UNSETENV=YesPlease]) 597AC_SUBST(NO_UNSETENV) 598# 599# Define NO_MKDTEMP if you don't have mkdtemp in the C library. 600GIT_CHECK_FUNC(mkdtemp, 601[NO_MKDTEMP=], 602[NO_MKDTEMP=YesPlease]) 603AC_SUBST(NO_MKDTEMP) 604# 605# Define NO_MMAP if you want to avoid mmap. 606# 607# Define NO_ICONV if your libc does not properly support iconv. 608 609 610## Other checks. 611# Define USE_PIC if you need the main git objects to be built with -fPIC 612# in order to build and link perl/Git.so. x86-64 seems to need this. 613# 614# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. 615# Enable it on Windows. By default, symrefs are still used. 616# 617# Define NO_PTHREADS if we do not have pthreads 618# 619# Define PTHREAD_LIBS to the linker flag used for Pthread support and define 620# THREADED_DELTA_SEARCH if Pthreads are available. 621AC_LANG_CONFTEST([AC_LANG_PROGRAM( 622 [[#include <pthread.h>]], 623 [[pthread_mutex_t test_mutex;]] 624)]) 625${CC} -pthread conftest.c -o conftest.o > /dev/null 2>&1 626if test $? -eq 0;then 627 PTHREAD_LIBS="-pthread" 628 THREADED_DELTA_SEARCH=YesPlease 629else 630 ${CC} -lpthread conftest.c -o conftest.o > /dev/null 2>&1 631 if test $? -eq 0;then 632 PTHREAD_LIBS="-lpthread" 633 THREADED_DELTA_SEARCH=YesPlease 634 else 635 NO_PTHREADS=UnfortunatelyYes 636 fi 637fi 638AC_SUBST(PTHREAD_LIBS) 639AC_SUBST(NO_PTHREADS) 640AC_SUBST(THREADED_DELTA_SEARCH) 641 642## Output files 643AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"]) 644AC_OUTPUT 645 646 647## Cleanup 648rm -f "${config_append}"