1# -*- Autoconf -*- 2# Process this file with autoconf to produce a configure script. 3 4## Definitions of private macros. 5 6# GIT_CONF_SUBST(VAL, VAR) 7# ------------------------ 8# Append the line "VAR=VAL" to file ${config_append} 9AC_DEFUN([GIT_CONF_APPEND_LINE], 10 [echo "$1=$2" >> "${config_append}"]) 11 12# GIT_ARG_SET_PATH(PROGRAM) 13# ------------------------- 14# Provide --with-PROGRAM=PATH option to set PATH to PROGRAM 15# Optional second argument allows setting NO_PROGRAM=YesPlease if 16# --without-PROGRAM version used. 17AC_DEFUN([GIT_ARG_SET_PATH], 18 [AC_ARG_WITH([$1], 19 [AS_HELP_STRING([--with-$1=PATH], 20 [provide PATH to $1])], 21 [GIT_CONF_APPEND_PATH([$1], [$2])], 22 [])]) 23 24# GIT_CONF_APPEND_PATH(PROGRAM) 25# ----------------------------- 26# Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH 27# Used by GIT_ARG_SET_PATH(PROGRAM) 28# Optional second argument allows setting NO_PROGRAM=YesPlease if 29# --without-PROGRAM is used. 30AC_DEFUN([GIT_CONF_APPEND_PATH], 31 [m4_pushdef([GIT_UC_PROGRAM], m4_toupper([$1]))dnl 32 if test "$withval" = "no"; then 33 if test -n "$2"; then 34 GIT_UC_PROGRAM[]_PATH=$withval 35 AC_MSG_NOTICE([Disabling use of GIT_UC_PROGRAM]) 36 GIT_CONF_SUBST([NO_]GIT_UC_PROGRAM, [YesPlease]) 37 GIT_CONF_SUBST(GIT_UC_PROGRAM[]_PATH, []) 38 else 39 AC_MSG_ERROR([You cannot use git without $1]) 40 fi 41 else 42 if test "$withval" = "yes"; then 43 AC_MSG_WARN([You should provide path for --with-$1=PATH]) 44 else 45 GIT_UC_PROGRAM[]_PATH=$withval 46 AC_MSG_NOTICE([Setting GIT_UC_PROGRAM[]_PATH to $withval]) 47 GIT_CONF_SUBST(GIT_UC_PROGRAM[]_PATH, [$withval]) 48 fi 49 fi 50 m4_popdef([GIT_UC_PROGRAM])]) 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 [m4_pushdef([GIT_UC_PACKAGE], m4_toupper([$1]))dnl 60 if test "$withval" = "no"; then 61 NO_[]GIT_UC_PACKAGE=YesPlease 62 elif test "$withval" = "yes"; then 63 NO_[]GIT_UC_PACKAGE= 64 else 65 NO_[]GIT_UC_PACKAGE= 66 GIT_UC_PACKAGE[]DIR=$withval 67 AC_MSG_NOTICE([Setting GIT_UC_PACKAGE[]DIR to $withval]) 68 GIT_CONF_SUBST(GIT_UC_PACKAGE[DIR], [$withval]) 69 fi 70 m4_popdef([GIT_UC_PACKAGE])]) 71 72# GIT_PARSE_WITH_SET_MAKE_VAR(WITHNAME, VAR, HELP_TEXT) 73# ----------------------------------------------------- 74# Set VAR to the value specied by --with-WITHNAME. 75# No verification of arguments is performed, but warnings are issued 76# if either 'yes' or 'no' is specified. 77# HELP_TEXT is presented when --help is called. 78# This is a direct way to allow setting variables in the Makefile. 79AC_DEFUN([GIT_PARSE_WITH_SET_MAKE_VAR], 80[AC_ARG_WITH([$1], 81 [AS_HELP_STRING([--with-$1=VALUE], $3)], 82 if test -n "$withval"; then 83 if test "$withval" = "yes" -o "$withval" = "no"; then 84 AC_MSG_WARN([You likely do not want either 'yes' or 'no' as] 85 [a value for $1 ($2). Maybe you do...?]) 86 fi 87 AC_MSG_NOTICE([Setting $2 to $withval]) 88 GIT_CONF_SUBST([$2], [$withval]) 89 fi)])# GIT_PARSE_WITH_SET_MAKE_VAR 90 91# 92# GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE) 93# ----------------------------------------- 94# Similar to AC_CHECK_FUNC, but on systems that do not generate 95# warnings for missing prototypes (e.g. FreeBSD when compiling without 96# -Wall), it does not work. By looking for function definition in 97# libraries, this problem can be worked around. 98AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[ 99 AC_SEARCH_LIBS([$1],, 100 [$2],[$3]) 101],[$3])]) 102 103# 104# GIT_STASH_FLAGS(BASEPATH_VAR) 105# ----------------------------- 106# Allow for easy stashing of LDFLAGS and CPPFLAGS before running 107# tests that may want to take user settings into account. 108AC_DEFUN([GIT_STASH_FLAGS],[ 109if test -n "$1"; then 110 old_CPPFLAGS="$CPPFLAGS" 111 old_LDFLAGS="$LDFLAGS" 112 CPPFLAGS="-I$1/include $CPPFLAGS" 113 LDFLAGS="-L$1/$lib $LDFLAGS" 114fi 115]) 116 117dnl 118dnl GIT_UNSTASH_FLAGS(BASEPATH_VAR) 119dnl ----------------------------- 120dnl Restore the stashed *FLAGS values. 121AC_DEFUN([GIT_UNSTASH_FLAGS],[ 122if test -n "$1"; then 123 CPPFLAGS="$old_CPPFLAGS" 124 LDFLAGS="$old_LDFLAGS" 125fi 126]) 127 128## Configure body starts here. 129 130AC_PREREQ(2.59) 131AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org]) 132 133AC_CONFIG_SRCDIR([git.c]) 134 135config_file=config.mak.autogen 136config_append=config.mak.append 137config_in=config.mak.in 138 139echo "# ${config_append}. Generated by configure." > "${config_append}" 140 141# Directories holding "saner" versions of common or POSIX binaries. 142AC_ARG_WITH([sane-tool-path], 143 [AS_HELP_STRING( 144 [--with-sane-tool-path=DIR-1[[:DIR-2...:DIR-n]]], 145 [Directories to prepend to PATH in build system and generated scripts])], 146 [if test "$withval" = "no"; then 147 withval='' 148 else 149 AC_MSG_NOTICE([Setting SANE_TOOL_PATH to '$withval']) 150 fi 151 GIT_CONF_SUBST([SANE_TOOL_PATH], [$withval])], 152 [# If the "--with-sane-tool-path" option was not given, don't touch 153 # SANE_TOOL_PATH here, but let defaults in Makefile take care of it. 154 # This should minimize spurious differences in the behaviour of the 155 # Git build system when configure is used w.r.t. when it is not. 156 :]) 157 158## Site configuration related to programs (before tests) 159## --with-PACKAGE[=ARG] and --without-PACKAGE 160# 161# Set lib to alternative name of lib directory (e.g. lib64) 162AC_ARG_WITH([lib], 163 [AS_HELP_STRING([--with-lib=ARG], 164 [ARG specifies alternative name for lib directory])], 165 [if test "$withval" = "no" || test "$withval" = "yes"; then 166 AC_MSG_WARN([You should provide name for --with-lib=ARG]) 167 else 168 lib=$withval 169 AC_MSG_NOTICE([Setting lib to '$lib']) 170 GIT_CONF_SUBST([lib], [$withval]) 171 fi]) 172 173if test -z "$lib"; then 174 AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) 175 lib=lib 176fi 177 178AC_ARG_ENABLE([pthreads], 179 [AS_HELP_STRING([--enable-pthreads=FLAGS], 180 [FLAGS is the value to pass to the compiler to enable POSIX Threads.] 181 [The default if FLAGS is not specified is to try first -pthread] 182 [and then -lpthread.] 183 [--without-pthreads will disable threading.])], 184[ 185if test "x$enableval" = "xyes"; then 186 AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads]) 187elif test "x$enableval" != "xno"; then 188 PTHREAD_CFLAGS=$enableval 189 AC_MSG_NOTICE([Setting '$PTHREAD_CFLAGS' as the FLAGS to enable POSIX Threads]) 190else 191 AC_MSG_NOTICE([POSIX Threads will be disabled.]) 192 NO_PTHREADS=YesPlease 193 USER_NOPTHREAD=1 194fi], 195[ 196 AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads.]) 197]) 198 199# Define option to enable JavaScript minification 200AC_ARG_ENABLE([jsmin], 201[AS_HELP_STRING([--enable-jsmin=PATH], 202 [PATH is the name of a JavaScript minifier or the absolute path to one.])], 203[ 204 JSMIN=$enableval; 205 AC_MSG_NOTICE([Setting JSMIN to '$JSMIN' to enable JavaScript minifying]) 206 GIT_CONF_SUBST([JSMIN], [$enableval]); 207]) 208 209# Define option to enable CSS minification 210AC_ARG_ENABLE([cssmin], 211[AS_HELP_STRING([--enable-cssmin=PATH], 212 [PATH is the name of a CSS minifier or the absolute path to one.])], 213[ 214 CSSMIN=$enableval; 215 AC_MSG_NOTICE([Setting CSSMIN to '$CSSMIN' to enable CSS minifying]) 216 GIT_CONF_SUBST([CSSMIN], [$enableval]); 217]) 218 219## Site configuration (override autodetection) 220## --with-PACKAGE[=ARG] and --without-PACKAGE 221AC_MSG_NOTICE([CHECKS for site configuration]) 222# 223# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability 224# tests. These tests take up a significant amount of the total test time 225# but are not needed unless you plan to talk to SVN repos. 226# 227# Define PPC_SHA1 environment variable when running make to make use of 228# a bundled SHA1 routine optimized for PowerPC. 229# 230# Define NO_OPENSSL environment variable if you do not have OpenSSL. 231# This also implies BLK_SHA1. 232# 233# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in 234# /foo/bar/include and /foo/bar/lib directories. 235AC_ARG_WITH(openssl, 236AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) 237AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]), 238GIT_PARSE_WITH([openssl])) 239 240# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be 241# able to use Perl-compatible regular expressions. 242# 243# Define LIBPCREDIR=/foo/bar if your libpcre header and library files are in 244# /foo/bar/include and /foo/bar/lib directories. 245# 246AC_ARG_WITH(libpcre, 247AS_HELP_STRING([--with-libpcre],[support Perl-compatible regexes (default is NO)]) 248AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]), 249 if test "$withval" = "no"; then 250 USE_LIBPCRE= 251 elif test "$withval" = "yes"; then 252 USE_LIBPCRE=YesPlease 253 else 254 USE_LIBPCRE=YesPlease 255 LIBPCREDIR=$withval 256 AC_MSG_NOTICE([Setting LIBPCREDIR to $withval]) 257 GIT_CONF_SUBST([LIBPCREDIR], [$withval]) 258 fi) 259# 260# Define NO_CURL if you do not have curl installed. git-http-pull and 261# git-http-push are not built, and you cannot use http:// and https:// 262# transports. 263# 264# Define CURLDIR=/foo/bar if your curl header and library files are in 265# /foo/bar/include and /foo/bar/lib directories. 266AC_ARG_WITH(curl, 267AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) 268AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), 269GIT_PARSE_WITH(curl)) 270# 271# Define NO_EXPAT if you do not have expat installed. git-http-push is 272# not built, and you cannot push using http:// and https:// transports. 273# 274# Define EXPATDIR=/foo/bar if your expat header and library files are in 275# /foo/bar/include and /foo/bar/lib directories. 276AC_ARG_WITH(expat, 277AS_HELP_STRING([--with-expat], 278[support git-push using http:// and https:// transports via WebDAV (default is YES)]) 279AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), 280GIT_PARSE_WITH(expat)) 281# 282# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink 283# installed in /sw, but don't want GIT to link against any libraries 284# installed there. If defined you may specify your own (or Fink's) 285# include directories and library directories by defining CFLAGS 286# and LDFLAGS appropriately. 287# 288# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, 289# have DarwinPorts installed in /opt/local, but don't want GIT to 290# link against any libraries installed there. If defined you may 291# specify your own (or DarwinPort's) include directories and 292# library directories by defining CFLAGS and LDFLAGS appropriately. 293# 294# Define NO_MMAP if you want to avoid mmap. 295# 296# Define NO_ICONV if your libc does not properly support iconv. 297AC_ARG_WITH(iconv, 298AS_HELP_STRING([--without-iconv], 299[if your architecture doesn't properly support iconv]) 300AS_HELP_STRING([--with-iconv=PATH], 301[PATH is prefix for libiconv library and headers]) 302AS_HELP_STRING([], 303[used only if you need linking with libiconv]), 304GIT_PARSE_WITH(iconv)) 305 306## --enable-FEATURE[=ARG] and --disable-FEATURE 307# 308# Define USE_NSEC below if you want git to care about sub-second file mtimes 309# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and 310# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely 311# randomly break unless your underlying filesystem supports those sub-second 312# times (my ext3 doesn't). 313# 314# Define USE_STDEV below if you want git to care about the underlying device 315# change being considered an inode change from the update-index perspective. 316 317# 318# Allow user to set ETC_GITCONFIG variable 319GIT_PARSE_WITH_SET_MAKE_VAR(gitconfig, ETC_GITCONFIG, 320 Use VALUE instead of /etc/gitconfig as the 321 global git configuration file. 322 If VALUE is not fully qualified it will be interpreted 323 as a path relative to the computed prefix at runtime.) 324 325# 326# Allow user to set ETC_GITATTRIBUTES variable 327GIT_PARSE_WITH_SET_MAKE_VAR(gitattributes, ETC_GITATTRIBUTES, 328 Use VALUE instead of /etc/gitattributes as the 329 global git attributes file. 330 If VALUE is not fully qualified it will be interpreted 331 as a path relative to the computed prefix at runtime.) 332 333# 334# Allow user to set the default pager 335GIT_PARSE_WITH_SET_MAKE_VAR(pager, DEFAULT_PAGER, 336 Use VALUE as the fall-back pager instead of 'less'. 337 This is used by things like 'git log' when the user 338 does not specify a pager to use through alternate 339 methods. eg: /usr/bin/pager) 340# 341# Allow user to set the default editor 342GIT_PARSE_WITH_SET_MAKE_VAR(editor, DEFAULT_EDITOR, 343 Use VALUE as the fall-back editor instead of 'vi'. 344 This is used by things like 'git commit' when the user 345 does not specify a preferred editor through other 346 methods. eg: /usr/bin/editor) 347 348# 349# Define SHELL_PATH to provide path to shell. 350GIT_ARG_SET_PATH(shell) 351# 352# Define PERL_PATH to provide path to Perl. 353GIT_ARG_SET_PATH(perl) 354# 355# Define PYTHON_PATH to provide path to Python. 356GIT_ARG_SET_PATH(python, allow-without) 357# 358# Define ZLIB_PATH to provide path to zlib. 359GIT_ARG_SET_PATH(zlib) 360# 361# Declare the with-tcltk/without-tcltk options. 362AC_ARG_WITH(tcltk, 363AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)]) 364AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.]) 365AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if]) 366AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]), 367GIT_PARSE_WITH(tcltk)) 368# 369 370 371## Checks for programs. 372AC_MSG_NOTICE([CHECKS for programs]) 373# 374AC_PROG_CC([cc gcc]) 375AC_C_INLINE 376case $ac_cv_c_inline in 377 inline | yes | no) ;; 378 *) AC_SUBST([INLINE], [$ac_cv_c_inline]) ;; 379esac 380 381# which switch to pass runtime path to dynamic libraries to the linker 382AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [ 383 SAVE_LDFLAGS="${LDFLAGS}" 384 LDFLAGS="${SAVE_LDFLAGS} -R /" 385 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no]) 386 LDFLAGS="${SAVE_LDFLAGS}" 387]) 388if test "$git_cv_ld_dashr" = "yes"; then 389 AC_SUBST(CC_LD_DYNPATH, [-R]) 390else 391 AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [ 392 SAVE_LDFLAGS="${LDFLAGS}" 393 LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/" 394 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no]) 395 LDFLAGS="${SAVE_LDFLAGS}" 396 ]) 397 if test "$git_cv_ld_wl_rpath" = "yes"; then 398 AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,]) 399 else 400 AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [ 401 SAVE_LDFLAGS="${LDFLAGS}" 402 LDFLAGS="${SAVE_LDFLAGS} -rpath /" 403 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no]) 404 LDFLAGS="${SAVE_LDFLAGS}" 405 ]) 406 if test "$git_cv_ld_rpath" = "yes"; then 407 AC_SUBST(CC_LD_DYNPATH, [-rpath]) 408 else 409 AC_MSG_WARN([linker does not support runtime path to dynamic libraries]) 410 fi 411 fi 412fi 413#AC_PROG_INSTALL # needs install-sh or install.sh in sources 414AC_CHECK_TOOLS(AR, [gar ar], :) 415AC_CHECK_PROGS(TAR, [gtar tar]) 416AC_CHECK_PROGS(DIFF, [gnudiff gdiff diff]) 417# TCLTK_PATH will be set to some value if we want Tcl/Tk 418# or will be empty otherwise. 419if test -z "$NO_TCLTK"; then 420 if test "$with_tcltk" = ""; then 421 # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'. 422 TCLTK_PATH=wish 423 AC_SUBST(TCLTK_PATH) 424 elif test "$with_tcltk" = "yes"; then 425 # Tcl/Tk check requested. 426 AC_CHECK_PROGS(TCLTK_PATH, [wish], ) 427 else 428 AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk]) 429 TCLTK_PATH="$with_tcltk" 430 AC_SUBST(TCLTK_PATH) 431 fi 432fi 433AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) 434if test -n "$ASCIIDOC"; then 435 AC_MSG_CHECKING([for asciidoc version]) 436 asciidoc_version=`$ASCIIDOC --version 2>/dev/null` 437 case "${asciidoc_version}" in 438 asciidoc' '8*) 439 AC_MSG_RESULT([${asciidoc_version}]) 440 ;; 441 *) 442 AC_MSG_RESULT([${asciidoc_version} (unknown)]) 443 ;; 444 esac 445fi 446 447 448## Checks for libraries. 449AC_MSG_NOTICE([CHECKS for libraries]) 450# 451# Define NO_OPENSSL environment variable if you do not have OpenSSL. 452# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). 453 454GIT_STASH_FLAGS($OPENSSLDIR) 455 456AC_CHECK_LIB([crypto], [SHA1_Init], 457[NEEDS_SSL_WITH_CRYPTO=], 458[AC_CHECK_LIB([ssl], [SHA1_Init], 459 [NEEDS_SSL_WITH_CRYPTO=YesPlease], 460 [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])]) 461 462GIT_UNSTASH_FLAGS($OPENSSLDIR) 463 464AC_SUBST(NEEDS_SSL_WITH_CRYPTO) 465AC_SUBST(NO_OPENSSL) 466 467# 468# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be 469# able to use Perl-compatible regular expressions. 470# 471 472if test -n "$USE_LIBPCRE"; then 473 474GIT_STASH_FLAGS($LIBPCREDIR) 475 476AC_CHECK_LIB([pcre], [pcre_version], 477[USE_LIBPCRE=YesPlease], 478[USE_LIBPCRE=]) 479 480GIT_UNSTASH_FLAGS($LIBPCREDIR) 481 482AC_SUBST(USE_LIBPCRE) 483 484fi 485 486# 487# Define NO_CURL if you do not have libcurl installed. git-http-pull and 488# git-http-push are not built, and you cannot use http:// and https:// 489# transports. 490 491GIT_STASH_FLAGS($CURLDIR) 492 493AC_CHECK_LIB([curl], [curl_global_init], 494[NO_CURL=], 495[NO_CURL=YesPlease]) 496 497GIT_UNSTASH_FLAGS($CURLDIR) 498 499AC_SUBST(NO_CURL) 500 501# 502# Define NO_EXPAT if you do not have expat installed. git-http-push is 503# not built, and you cannot push using http:// and https:// transports. 504 505GIT_STASH_FLAGS($EXPATDIR) 506 507AC_CHECK_LIB([expat], [XML_ParserCreate], 508[NO_EXPAT=], 509[NO_EXPAT=YesPlease]) 510 511GIT_UNSTASH_FLAGS($EXPATDIR) 512 513AC_SUBST(NO_EXPAT) 514 515# 516# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and 517# some Solaris installations). 518# Define NO_ICONV if neither libc nor libiconv support iconv. 519 520if test -z "$NO_ICONV"; then 521 522GIT_STASH_FLAGS($ICONVDIR) 523 524AC_DEFUN([ICONVTEST_SRC], 525[AC_LANG_PROGRAM([#include <iconv.h>], 526 [iconv_open("", "");])]) 527 528if test -n "$ICONVDIR"; then 529 lib_order="-liconv -lc" 530else 531 lib_order="-lc -liconv" 532fi 533 534NO_ICONV=YesPlease 535 536for l in $lib_order; do 537 if test "$l" = "-liconv"; then 538 NEEDS_LIBICONV=YesPlease 539 else 540 NEEDS_LIBICONV= 541 fi 542 543 old_LIBS="$LIBS" 544 LIBS="$LIBS $l" 545 AC_MSG_CHECKING([for iconv in $l]) 546 AC_LINK_IFELSE([ICONVTEST_SRC], 547 [AC_MSG_RESULT([yes]) 548 NO_ICONV= 549 break], 550 [AC_MSG_RESULT([no])]) 551 LIBS="$old_LIBS" 552done 553 554#in case of break 555LIBS="$old_LIBS" 556 557GIT_UNSTASH_FLAGS($ICONVDIR) 558 559AC_SUBST(NEEDS_LIBICONV) 560AC_SUBST(NO_ICONV) 561 562if test -n "$NO_ICONV"; then 563 NEEDS_LIBICONV= 564fi 565 566fi 567 568# 569# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. 570 571GIT_STASH_FLAGS($ZLIB_PATH) 572 573AC_DEFUN([ZLIBTEST_SRC], [ 574AC_LANG_PROGRAM([#include <zlib.h>], 575 [deflateBound(0, 0);])]) 576AC_MSG_CHECKING([for deflateBound in -lz]) 577old_LIBS="$LIBS" 578LIBS="$LIBS -lz" 579AC_LINK_IFELSE([ZLIBTEST_SRC], 580 [AC_MSG_RESULT([yes])], 581 [AC_MSG_RESULT([no]) 582 NO_DEFLATE_BOUND=yes]) 583LIBS="$old_LIBS" 584 585GIT_UNSTASH_FLAGS($ZLIB_PATH) 586 587AC_SUBST(NO_DEFLATE_BOUND) 588 589# 590# Define NEEDS_SOCKET if linking with libc is not enough (SunOS, 591# Patrick Mauritz). 592AC_CHECK_LIB([c], [socket], 593[NEEDS_SOCKET=], 594[NEEDS_SOCKET=YesPlease]) 595AC_SUBST(NEEDS_SOCKET) 596test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" 597 598# 599# The next few tests will define NEEDS_RESOLV if linking with 600# libresolv provides some of the functions we would normally get 601# from libc. 602NEEDS_RESOLV= 603AC_SUBST(NEEDS_RESOLV) 604# 605# Define NO_INET_NTOP if linking with -lresolv is not enough. 606# Solaris 2.7 in particular hos inet_ntop in -lresolv. 607NO_INET_NTOP= 608AC_SUBST(NO_INET_NTOP) 609AC_CHECK_FUNC([inet_ntop], 610 [], 611 [AC_CHECK_LIB([resolv], [inet_ntop], 612 [NEEDS_RESOLV=YesPlease], 613 [NO_INET_NTOP=YesPlease]) 614]) 615# 616# Define NO_INET_PTON if linking with -lresolv is not enough. 617# Solaris 2.7 in particular hos inet_pton in -lresolv. 618NO_INET_PTON= 619AC_SUBST(NO_INET_PTON) 620AC_CHECK_FUNC([inet_pton], 621 [], 622 [AC_CHECK_LIB([resolv], [inet_pton], 623 [NEEDS_RESOLV=YesPlease], 624 [NO_INET_PTON=YesPlease]) 625]) 626# 627# Define NO_HSTRERROR if linking with -lresolv is not enough. 628# Solaris 2.6 in particular has no hstrerror, even in -lresolv. 629NO_HSTRERROR= 630AC_CHECK_FUNC([hstrerror], 631 [], 632 [AC_CHECK_LIB([resolv], [hstrerror], 633 [NEEDS_RESOLV=YesPlease], 634 [NO_HSTRERROR=YesPlease]) 635]) 636AC_SUBST(NO_HSTRERROR) 637# 638# If any of the above tests determined that -lresolv is needed at 639# build-time, also set it here for remaining configure-time checks. 640test -n "$NEEDS_RESOLV" && LIBS="$LIBS -lresolv" 641 642AC_CHECK_LIB([c], [basename], 643[NEEDS_LIBGEN=], 644[NEEDS_LIBGEN=YesPlease]) 645AC_SUBST(NEEDS_LIBGEN) 646test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen" 647 648AC_CHECK_LIB([c], [gettext], 649[LIBC_CONTAINS_LIBINTL=YesPlease], 650[LIBC_CONTAINS_LIBINTL=]) 651AC_SUBST(LIBC_CONTAINS_LIBINTL) 652 653# 654# Define NO_GETTEXT if you don't want Git output to be translated. 655# A translated Git requires GNU libintl or another gettext implementation 656AC_CHECK_HEADER([libintl.h], 657[NO_GETTEXT=], 658[NO_GETTEXT=YesPlease]) 659AC_SUBST(NO_GETTEXT) 660 661if test -z "$NO_GETTEXT"; then 662 test -n "$LIBC_CONTAINS_LIBINTL" || LIBS="$LIBS -lintl" 663fi 664 665## Checks for header files. 666AC_MSG_NOTICE([CHECKS for header files]) 667# 668# Define NO_SYS_SELECT_H if you don't have sys/select.h. 669AC_CHECK_HEADER([sys/select.h], 670[NO_SYS_SELECT_H=], 671[NO_SYS_SELECT_H=UnfortunatelyYes]) 672AC_SUBST(NO_SYS_SELECT_H) 673# 674# Define NO_SYS_POLL_H if you don't have sys/poll.h 675AC_CHECK_HEADER([sys/poll.h], 676[NO_SYS_POLL_H=], 677[NO_SYS_POLL_H=UnfortunatelyYes]) 678AC_SUBST(NO_SYS_POLL_H) 679# 680# Define NO_INTTYPES_H if you don't have inttypes.h 681AC_CHECK_HEADER([inttypes.h], 682[NO_INTTYPES_H=], 683[NO_INTTYPES_H=UnfortunatelyYes]) 684AC_SUBST(NO_INTTYPES_H) 685# 686# Define OLD_ICONV if your library has an old iconv(), where the second 687# (input buffer pointer) parameter is declared with type (const char **). 688AC_DEFUN([OLDICONVTEST_SRC], [ 689AC_LANG_PROGRAM([[ 690#include <iconv.h> 691 692extern size_t iconv(iconv_t cd, 693 char **inbuf, size_t *inbytesleft, 694 char **outbuf, size_t *outbytesleft); 695]], [])]) 696 697GIT_STASH_FLAGS($ICONVDIR) 698 699AC_MSG_CHECKING([for old iconv()]) 700AC_COMPILE_IFELSE([OLDICONVTEST_SRC], 701 [AC_MSG_RESULT([no])], 702 [AC_MSG_RESULT([yes]) 703 OLD_ICONV=UnfortunatelyYes]) 704 705GIT_UNSTASH_FLAGS($ICONVDIR) 706 707AC_SUBST(OLD_ICONV) 708 709## Checks for typedefs, structures, and compiler characteristics. 710AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) 711# 712TYPE_SOCKLEN_T 713case $ac_cv_type_socklen_t in 714 yes) ;; 715 *) AC_SUBST([SOCKLEN_T], [$git_cv_socklen_t_equiv]) ;; 716esac 717 718# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. 719AC_CHECK_MEMBER(struct dirent.d_ino, 720[NO_D_INO_IN_DIRENT=], 721[NO_D_INO_IN_DIRENT=YesPlease], 722[#include <dirent.h>]) 723AC_SUBST(NO_D_INO_IN_DIRENT) 724# 725# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks 726# d_type in struct dirent (latest Cygwin -- will be fixed soonish). 727AC_CHECK_MEMBER(struct dirent.d_type, 728[NO_D_TYPE_IN_DIRENT=], 729[NO_D_TYPE_IN_DIRENT=YesPlease], 730[#include <dirent.h>]) 731AC_SUBST(NO_D_TYPE_IN_DIRENT) 732# 733# Define NO_SOCKADDR_STORAGE if your platform does not have struct 734# sockaddr_storage. 735AC_CHECK_TYPE(struct sockaddr_storage, 736[NO_SOCKADDR_STORAGE=], 737[NO_SOCKADDR_STORAGE=YesPlease],[ 738#include <sys/types.h> 739#include <sys/socket.h> 740]) 741AC_SUBST(NO_SOCKADDR_STORAGE) 742# 743# Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). 744AC_CHECK_TYPE([struct addrinfo],[ 745 GIT_CHECK_FUNC([getaddrinfo], 746 [NO_IPV6=], 747 [NO_IPV6=YesPlease]) 748],[NO_IPV6=YesPlease],[ 749#include <sys/types.h> 750#include <sys/socket.h> 751#include <netdb.h> 752]) 753AC_SUBST(NO_IPV6) 754# 755# Define NO_REGEX if you have no or inferior regex support in your C library. 756AC_CACHE_CHECK([whether the platform regex can handle null bytes], 757 [ac_cv_c_excellent_regex], [ 758AC_EGREP_CPP(yippeeyeswehaveit, 759 AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 760#include <regex.h> 761], 762[#ifdef REG_STARTEND 763yippeeyeswehaveit 764#endif 765]), 766 [ac_cv_c_excellent_regex=yes], 767 [ac_cv_c_excellent_regex=no]) 768]) 769if test $ac_cv_c_excellent_regex = yes; then 770 NO_REGEX= 771else 772 NO_REGEX=YesPlease 773fi 774AC_SUBST(NO_REGEX) 775# 776# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds 777# when attempting to read from an fopen'ed directory. 778AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], 779 [ac_cv_fread_reads_directories], 780[ 781AC_RUN_IFELSE( 782 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 783 [[char c; 784 FILE *f = fopen(".", "r"); 785 return f && fread(&c, 1, 1, f)]])], 786 [ac_cv_fread_reads_directories=no], 787 [ac_cv_fread_reads_directories=yes]) 788]) 789if test $ac_cv_fread_reads_directories = yes; then 790 FREAD_READS_DIRECTORIES=UnfortunatelyYes 791else 792 FREAD_READS_DIRECTORIES= 793fi 794AC_SUBST(FREAD_READS_DIRECTORIES) 795# 796# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() 797# or vsnprintf() return -1 instead of number of characters which would 798# have been written to the final string if enough space had been available. 799AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], 800 [ac_cv_snprintf_returns_bogus], 801[ 802AC_RUN_IFELSE( 803 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 804 #include "stdarg.h" 805 806 int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) 807 { 808 int ret; 809 va_list ap; 810 va_start(ap, format); 811 ret = vsnprintf(str, maxsize, format, ap); 812 va_end(ap); 813 return ret; 814 }], 815 [[char buf[6]; 816 if (test_vsnprintf(buf, 3, "%s", "12345") != 5 817 || strcmp(buf, "12")) return 1; 818 if (snprintf(buf, 3, "%s", "12345") != 5 819 || strcmp(buf, "12")) return 1]])], 820 [ac_cv_snprintf_returns_bogus=no], 821 [ac_cv_snprintf_returns_bogus=yes]) 822]) 823if test $ac_cv_snprintf_returns_bogus = yes; then 824 SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes 825else 826 SNPRINTF_RETURNS_BOGUS= 827fi 828AC_SUBST(SNPRINTF_RETURNS_BOGUS) 829 830 831## Checks for library functions. 832## (in default C library and libraries checked by AC_CHECK_LIB) 833AC_MSG_NOTICE([CHECKS for library functions]) 834# 835# Define NO_LIBGEN_H if you don't have libgen.h. 836AC_CHECK_HEADER([libgen.h], 837[NO_LIBGEN_H=], 838[NO_LIBGEN_H=YesPlease]) 839AC_SUBST(NO_LIBGEN_H) 840# 841# Define HAVE_PATHS_H if you have paths.h. 842AC_CHECK_HEADER([paths.h], 843[HAVE_PATHS_H=YesPlease], 844[HAVE_PATHS_H=]) 845AC_SUBST(HAVE_PATHS_H) 846# 847# Define HAVE_LIBCHARSET_H if have libcharset.h 848AC_CHECK_HEADER([libcharset.h], 849[HAVE_LIBCHARSET_H=YesPlease], 850[HAVE_LIBCHARSET_H=]) 851AC_SUBST(HAVE_LIBCHARSET_H) 852# Define CHARSET_LIB if libiconv does not export the locale_charset symbol 853# and libcharset does 854CHARSET_LIB= 855AC_CHECK_LIB([iconv], [locale_charset], 856 [], 857 [AC_CHECK_LIB([charset], [locale_charset], 858 [CHARSET_LIB=-lcharset]) 859 ] 860) 861AC_SUBST(CHARSET_LIB) 862# 863# Define NO_STRCASESTR if you don't have strcasestr. 864GIT_CHECK_FUNC(strcasestr, 865[NO_STRCASESTR=], 866[NO_STRCASESTR=YesPlease]) 867AC_SUBST(NO_STRCASESTR) 868# 869# Define NO_STRTOK_R if you don't have strtok_r 870GIT_CHECK_FUNC(strtok_r, 871[NO_STRTOK_R=], 872[NO_STRTOK_R=YesPlease]) 873AC_SUBST(NO_STRTOK_R) 874# 875# Define NO_FNMATCH if you don't have fnmatch 876GIT_CHECK_FUNC(fnmatch, 877[NO_FNMATCH=], 878[NO_FNMATCH=YesPlease]) 879AC_SUBST(NO_FNMATCH) 880# 881# Define NO_FNMATCH_CASEFOLD if your fnmatch function doesn't have the 882# FNM_CASEFOLD GNU extension. 883AC_CACHE_CHECK([whether the fnmatch function supports the FNMATCH_CASEFOLD GNU extension], 884 [ac_cv_c_excellent_fnmatch], [ 885AC_EGREP_CPP(yippeeyeswehaveit, 886 AC_LANG_PROGRAM([ 887#include <fnmatch.h> 888], 889[#ifdef FNM_CASEFOLD 890yippeeyeswehaveit 891#endif 892]), 893 [ac_cv_c_excellent_fnmatch=yes], 894 [ac_cv_c_excellent_fnmatch=no]) 895]) 896if test $ac_cv_c_excellent_fnmatch = yes; then 897 NO_FNMATCH_CASEFOLD= 898else 899 NO_FNMATCH_CASEFOLD=YesPlease 900fi 901AC_SUBST(NO_FNMATCH_CASEFOLD) 902# 903# Define NO_MEMMEM if you don't have memmem. 904GIT_CHECK_FUNC(memmem, 905[NO_MEMMEM=], 906[NO_MEMMEM=YesPlease]) 907AC_SUBST(NO_MEMMEM) 908# 909# Define NO_STRLCPY if you don't have strlcpy. 910GIT_CHECK_FUNC(strlcpy, 911[NO_STRLCPY=], 912[NO_STRLCPY=YesPlease]) 913AC_SUBST(NO_STRLCPY) 914# 915# Define NO_UINTMAX_T if your platform does not have uintmax_t 916AC_CHECK_TYPE(uintmax_t, 917[NO_UINTMAX_T=], 918[NO_UINTMAX_T=YesPlease],[ 919#include <inttypes.h> 920]) 921AC_SUBST(NO_UINTMAX_T) 922# 923# Define NO_STRTOUMAX if you don't have strtoumax in the C library. 924GIT_CHECK_FUNC(strtoumax, 925[NO_STRTOUMAX=], 926[NO_STRTOUMAX=YesPlease]) 927AC_SUBST(NO_STRTOUMAX) 928# 929# Define NO_SETENV if you don't have setenv in the C library. 930GIT_CHECK_FUNC(setenv, 931[NO_SETENV=], 932[NO_SETENV=YesPlease]) 933AC_SUBST(NO_SETENV) 934# 935# Define NO_UNSETENV if you don't have unsetenv in the C library. 936GIT_CHECK_FUNC(unsetenv, 937[NO_UNSETENV=], 938[NO_UNSETENV=YesPlease]) 939AC_SUBST(NO_UNSETENV) 940# 941# Define NO_MKDTEMP if you don't have mkdtemp in the C library. 942GIT_CHECK_FUNC(mkdtemp, 943[NO_MKDTEMP=], 944[NO_MKDTEMP=YesPlease]) 945AC_SUBST(NO_MKDTEMP) 946# 947# Define NO_MKSTEMPS if you don't have mkstemps in the C library. 948GIT_CHECK_FUNC(mkstemps, 949[NO_MKSTEMPS=], 950[NO_MKSTEMPS=YesPlease]) 951AC_SUBST(NO_MKSTEMPS) 952# 953# Define NO_INITGROUPS if you don't have initgroups in the C library. 954GIT_CHECK_FUNC(initgroups, 955[NO_INITGROUPS=], 956[NO_INITGROUPS=YesPlease]) 957AC_SUBST(NO_INITGROUPS) 958# 959# 960# Define NO_MMAP if you want to avoid mmap. 961# 962# Define NO_ICONV if your libc does not properly support iconv. 963 964 965## Other checks. 966# Define USE_PIC if you need the main git objects to be built with -fPIC 967# in order to build and link perl/Git.so. x86-64 seems to need this. 968# 969# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. 970# Enable it on Windows. By default, symrefs are still used. 971# 972# Define NO_PTHREADS if we do not have pthreads. 973# 974# Define PTHREAD_LIBS to the linker flag used for Pthread support. 975AC_DEFUN([PTHREADTEST_SRC], [ 976AC_LANG_PROGRAM([[ 977#include <pthread.h> 978]], [[ 979 pthread_mutex_t test_mutex; 980 pthread_key_t test_key; 981 int retcode = 0; 982 retcode |= pthread_key_create(&test_key, (void *)0); 983 retcode |= pthread_mutex_init(&test_mutex,(void *)0); 984 retcode |= pthread_mutex_lock(&test_mutex); 985 retcode |= pthread_mutex_unlock(&test_mutex); 986 return retcode; 987]])]) 988 989dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM( 990dnl [[#include <pthread.h>]], 991dnl [[pthread_mutex_t test_mutex;]] 992dnl )]) 993 994NO_PTHREADS=UnfortunatelyYes 995PTHREAD_LIBS= 996 997if test -n "$USER_NOPTHREAD"; then 998 AC_MSG_NOTICE([Skipping POSIX Threads at user request.]) 999# handle these separately since PTHREAD_CFLAGS could be '-lpthreads1000# -D_REENTRANT' or some such.1001elif test -z "$PTHREAD_CFLAGS"; then1002 threads_found=no1003 for opt in -mt -pthread -lpthread; do1004 old_CFLAGS="$CFLAGS"1005 CFLAGS="$opt $CFLAGS"1006 AC_MSG_CHECKING([Checking for POSIX Threads with '$opt'])1007 AC_LINK_IFELSE([PTHREADTEST_SRC],1008 [AC_MSG_RESULT([yes])1009 NO_PTHREADS=1010 PTHREAD_LIBS="$opt"1011 PTHREAD_CFLAGS="$opt"1012 threads_found=yes1013 break1014 ],1015 [AC_MSG_RESULT([no])])1016 CFLAGS="$old_CFLAGS"1017 done1018 if test $threads_found != yes; then1019 AC_CHECK_LIB([pthread], [pthread_create],1020 [PTHREAD_LIBS="-lpthread"],1021 [NO_PTHREADS=UnfortunatelyYes])1022 fi1023else1024 old_CFLAGS="$CFLAGS"1025 CFLAGS="$PTHREAD_CFLAGS $CFLAGS"1026 AC_MSG_CHECKING([Checking for POSIX Threads with '$PTHREAD_CFLAGS'])1027 AC_LINK_IFELSE([PTHREADTEST_SRC],1028 [AC_MSG_RESULT([yes])1029 NO_PTHREADS=1030 PTHREAD_LIBS="$PTHREAD_CFLAGS"1031 ],1032 [AC_MSG_RESULT([no])])10331034 CFLAGS="$old_CFLAGS"1035fi10361037CFLAGS="$old_CFLAGS"10381039AC_SUBST(PTHREAD_CFLAGS)1040AC_SUBST(PTHREAD_LIBS)1041AC_SUBST(NO_PTHREADS)10421043## Output files1044AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])1045AC_OUTPUT104610471048## Cleanup1049rm -f "${config_append}"