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 26# Optional second argument allows setting NO_PROGRAM=YesPlease if 27# --without-PROGRAM version used. 28AC_DEFUN([GIT_ARG_SET_PATH], 29[AC_ARG_WITH([$1], 30 [AS_HELP_STRING([--with-$1=PATH], 31 [provide PATH to $1])], 32 [GIT_CONF_APPEND_PATH($1,$2)],[]) 33])# GIT_ARG_SET_PATH 34# 35# GIT_CONF_APPEND_PATH(PROGRAM) 36# ------------------------------ 37# Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH 38# Used by GIT_ARG_SET_PATH(PROGRAM) 39# Optional second argument allows setting NO_PROGRAM=YesPlease if 40# --without-PROGRAM is used. 41AC_DEFUN([GIT_CONF_APPEND_PATH], 42[PROGRAM=m4_toupper($1); \ 43if test "$withval" = "no"; then \ 44 if test -n "$2"; then \ 45 m4_toupper($1)_PATH=$withval; \ 46 AC_MSG_NOTICE([Disabling use of ${PROGRAM}]); \ 47 GIT_CONF_APPEND_LINE(NO_${PROGRAM}=YesPlease); \ 48 GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=); \ 49 else \ 50 AC_MSG_ERROR([You cannot use git without $1]); \ 51 fi; \ 52else \ 53 if test "$withval" = "yes"; then \ 54 AC_MSG_WARN([You should provide path for --with-$1=PATH]); \ 55 else \ 56 m4_toupper($1)_PATH=$withval; \ 57 AC_MSG_NOTICE([Setting m4_toupper($1)_PATH to $withval]); \ 58 GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \ 59 fi; \ 60fi; \ 61]) # GIT_CONF_APPEND_PATH 62# 63# GIT_PARSE_WITH(PACKAGE) 64# ----------------------- 65# For use in AC_ARG_WITH action-if-found, for packages default ON. 66# * Set NO_PACKAGE=YesPlease for --without-PACKAGE 67# * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH 68# * Unset NO_PACKAGE for --with-PACKAGE without ARG 69AC_DEFUN([GIT_PARSE_WITH], 70[PACKAGE=m4_toupper($1); \ 71if test "$withval" = "no"; then \ 72 m4_toupper(NO_$1)=YesPlease; \ 73elif test "$withval" = "yes"; then \ 74 m4_toupper(NO_$1)=; \ 75else \ 76 m4_toupper(NO_$1)=; \ 77 m4_toupper($1)DIR=$withval; \ 78 AC_MSG_NOTICE([Setting m4_toupper($1)DIR to $withval]); \ 79 GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \ 80fi \ 81])# GIT_PARSE_WITH 82# 83# GIT_PARSE_WITH_SET_MAKE_VAR(WITHNAME, VAR, HELP_TEXT) 84# --------------------- 85# Set VAR to the value specied by --with-WITHNAME. 86# No verification of arguments is performed, but warnings are issued 87# if either 'yes' or 'no' is specified. 88# HELP_TEXT is presented when --help is called. 89# This is a direct way to allow setting variables in the Makefile. 90AC_DEFUN([GIT_PARSE_WITH_SET_MAKE_VAR], 91[AC_ARG_WITH([$1], 92 [AS_HELP_STRING([--with-$1=VALUE], $3)], 93 if test -n "$withval"; then \ 94 if test "$withval" = "yes" -o "$withval" = "no"; then \ 95 AC_MSG_WARN([You likely do not want either 'yes' or 'no' as] 96 [a value for $1 ($2). Maybe you do...?]); \ 97 fi; \ 98 \ 99 AC_MSG_NOTICE([Setting $2 to $withval]); \ 100 GIT_CONF_APPEND_LINE($2=$withval); \ 101 fi)])# GIT_PARSE_WITH_SET_MAKE_VAR 102 103dnl 104dnl GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE) 105dnl ----------------------------------------- 106dnl Similar to AC_CHECK_FUNC, but on systems that do not generate 107dnl warnings for missing prototypes (e.g. FreeBSD when compiling without 108dnl -Wall), it does not work. By looking for function definition in 109dnl libraries, this problem can be worked around. 110AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[ 111 AC_SEARCH_LIBS([$1],, 112 [$2],[$3]) 113],[$3])]) 114 115dnl 116dnl GIT_STASH_FLAGS(BASEPATH_VAR) 117dnl ----------------------------- 118dnl Allow for easy stashing of LDFLAGS and CPPFLAGS before running 119dnl tests that may want to take user settings into account. 120AC_DEFUN([GIT_STASH_FLAGS],[ 121if test -n "$1"; then 122 old_CPPFLAGS="$CPPFLAGS" 123 old_LDFLAGS="$LDFLAGS" 124 CPPFLAGS="-I$1/include $CPPFLAGS" 125 LDFLAGS="-L$1/$lib $LDFLAGS" 126fi 127]) 128 129dnl 130dnl GIT_UNSTASH_FLAGS(BASEPATH_VAR) 131dnl ----------------------------- 132dnl Restore the stashed *FLAGS values. 133AC_DEFUN([GIT_UNSTASH_FLAGS],[ 134if test -n "$1"; then 135 CPPFLAGS="$old_CPPFLAGS" 136 LDFLAGS="$old_LDFLAGS" 137fi 138]) 139 140## Site configuration related to programs (before tests) 141## --with-PACKAGE[=ARG] and --without-PACKAGE 142# 143# Set lib to alternative name of lib directory (e.g. lib64) 144AC_ARG_WITH([lib], 145 [AS_HELP_STRING([--with-lib=ARG], 146 [ARG specifies alternative name for lib directory])], 147 [if test "$withval" = "no" || test "$withval" = "yes"; then \ 148 AC_MSG_WARN([You should provide name for --with-lib=ARG]); \ 149else \ 150 lib=$withval; \ 151 AC_MSG_NOTICE([Setting lib to '$lib']); \ 152 GIT_CONF_APPEND_LINE(lib=$withval); \ 153fi; \ 154],[]) 155 156if test -z "$lib"; then 157 AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) 158 lib=lib 159fi 160 161AC_ARG_ENABLE([pthreads], 162 [AS_HELP_STRING([--enable-pthreads=FLAGS], 163 [FLAGS is the value to pass to the compiler to enable POSIX Threads.] 164 [The default if FLAGS is not specified is to try first -pthread] 165 [and then -lpthread.] 166 [--without-pthreads will disable threading.])], 167[ 168if test "x$enableval" = "xyes"; then 169 AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads]) 170elif test "x$enableval" != "xno"; then 171 PTHREAD_CFLAGS=$enableval 172 AC_MSG_NOTICE([Setting '$PTHREAD_CFLAGS' as the FLAGS to enable POSIX Threads]) 173else 174 AC_MSG_NOTICE([POSIX Threads will be disabled.]) 175 NO_PTHREADS=YesPlease 176 USER_NOPTHREAD=1 177fi], 178[ 179 AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads.]) 180]) 181 182# Define option to enable JavaScript minification 183AC_ARG_ENABLE([jsmin], 184[AS_HELP_STRING([--enable-jsmin=PATH], 185 [PATH is the name of a JavaScript minifier or the absolute path to one.])], 186[ 187 JSMIN=$enableval; 188 AC_MSG_NOTICE([Setting JSMIN to '$JSMIN' to enable JavaScript minifying]) 189 GIT_CONF_APPEND_LINE(JSMIN=$enableval); 190]) 191 192# Define option to enable CSS minification 193AC_ARG_ENABLE([cssmin], 194[AS_HELP_STRING([--enable-cssmin=PATH], 195 [PATH is the name of a CSS minifier or the absolute path to one.])], 196[ 197 CSSMIN=$enableval; 198 AC_MSG_NOTICE([Setting CSSMIN to '$CSSMIN' to enable CSS minifying]) 199 GIT_CONF_APPEND_LINE(CSSMIN=$enableval); 200]) 201 202## Site configuration (override autodetection) 203## --with-PACKAGE[=ARG] and --without-PACKAGE 204AC_MSG_NOTICE([CHECKS for site configuration]) 205# 206# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability 207# tests. These tests take up a significant amount of the total test time 208# but are not needed unless you plan to talk to SVN repos. 209# 210# Define PPC_SHA1 environment variable when running make to make use of 211# a bundled SHA1 routine optimized for PowerPC. 212# 213# Define NO_OPENSSL environment variable if you do not have OpenSSL. 214# This also implies BLK_SHA1. 215# 216# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in 217# /foo/bar/include and /foo/bar/lib directories. 218AC_ARG_WITH(openssl, 219AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) 220AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\ 221GIT_PARSE_WITH(openssl)) 222# 223# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be 224# able to use Perl-compatible regular expressions. 225# 226# Define LIBPCREDIR=/foo/bar if your libpcre header and library files are in 227# /foo/bar/include and /foo/bar/lib directories. 228# 229AC_ARG_WITH(libpcre, 230AS_HELP_STRING([--with-libpcre],[support Perl-compatible regexes (default is NO)]) 231AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]), 232if test "$withval" = "no"; then \ 233 USE_LIBPCRE=; \ 234elif test "$withval" = "yes"; then \ 235 USE_LIBPCRE=YesPlease; \ 236else 237 USE_LIBPCRE=YesPlease; \ 238 LIBPCREDIR=$withval; \ 239 AC_MSG_NOTICE([Setting LIBPCREDIR to $withval]); \ 240 GIT_CONF_APPEND_LINE(LIBPCREDIR=$withval); \ 241fi \ 242) 243# 244# Define NO_CURL if you do not have curl installed. git-http-pull and 245# git-http-push are not built, and you cannot use http:// and https:// 246# transports. 247# 248# Define CURLDIR=/foo/bar if your curl header and library files are in 249# /foo/bar/include and /foo/bar/lib directories. 250AC_ARG_WITH(curl, 251AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) 252AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), 253GIT_PARSE_WITH(curl)) 254# 255# Define NO_EXPAT if you do not have expat installed. git-http-push is 256# not built, and you cannot push using http:// and https:// transports. 257# 258# Define EXPATDIR=/foo/bar if your expat header and library files are in 259# /foo/bar/include and /foo/bar/lib directories. 260AC_ARG_WITH(expat, 261AS_HELP_STRING([--with-expat], 262[support git-push using http:// and https:// transports via WebDAV (default is YES)]) 263AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), 264GIT_PARSE_WITH(expat)) 265# 266# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink 267# installed in /sw, but don't want GIT to link against any libraries 268# installed there. If defined you may specify your own (or Fink's) 269# include directories and library directories by defining CFLAGS 270# and LDFLAGS appropriately. 271# 272# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, 273# have DarwinPorts installed in /opt/local, but don't want GIT to 274# link against any libraries installed there. If defined you may 275# specify your own (or DarwinPort's) include directories and 276# library directories by defining CFLAGS and LDFLAGS appropriately. 277# 278# Define NO_MMAP if you want to avoid mmap. 279# 280# Define NO_ICONV if your libc does not properly support iconv. 281AC_ARG_WITH(iconv, 282AS_HELP_STRING([--without-iconv], 283[if your architecture doesn't properly support iconv]) 284AS_HELP_STRING([--with-iconv=PATH], 285[PATH is prefix for libiconv library and headers]) 286AS_HELP_STRING([], 287[used only if you need linking with libiconv]), 288GIT_PARSE_WITH(iconv)) 289 290## --enable-FEATURE[=ARG] and --disable-FEATURE 291# 292# Define USE_NSEC below if you want git to care about sub-second file mtimes 293# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and 294# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely 295# randomly break unless your underlying filesystem supports those sub-second 296# times (my ext3 doesn't). 297# 298# Define USE_STDEV below if you want git to care about the underlying device 299# change being considered an inode change from the update-index perspective. 300 301# 302# Allow user to set ETC_GITCONFIG variable 303GIT_PARSE_WITH_SET_MAKE_VAR(gitconfig, ETC_GITCONFIG, 304 Use VALUE instead of /etc/gitconfig as the 305 global git configuration file. 306 If VALUE is not fully qualified it will be interpreted 307 as a path relative to the computed prefix at runtime.) 308 309# 310# Allow user to set ETC_GITATTRIBUTES variable 311GIT_PARSE_WITH_SET_MAKE_VAR(gitattributes, ETC_GITATTRIBUTES, 312 Use VALUE instead of /etc/gitattributes as the 313 global git attributes file. 314 If VALUE is not fully qualified it will be interpreted 315 as a path relative to the computed prefix at runtime.) 316 317# 318# Allow user to set the default pager 319GIT_PARSE_WITH_SET_MAKE_VAR(pager, DEFAULT_PAGER, 320 Use VALUE as the fall-back pager instead of 'less'. 321 This is used by things like 'git log' when the user 322 does not specify a pager to use through alternate 323 methods. eg: /usr/bin/pager) 324# 325# Allow user to set the default editor 326GIT_PARSE_WITH_SET_MAKE_VAR(editor, DEFAULT_EDITOR, 327 Use VALUE as the fall-back editor instead of 'vi'. 328 This is used by things like 'git commit' when the user 329 does not specify a preferred editor through other 330 methods. eg: /usr/bin/editor) 331 332# 333# Define SHELL_PATH to provide path to shell. 334GIT_ARG_SET_PATH(shell) 335# 336# Define PERL_PATH to provide path to Perl. 337GIT_ARG_SET_PATH(perl) 338# 339# Define PYTHON_PATH to provide path to Python. 340GIT_ARG_SET_PATH(python, allow-without) 341# 342# Define ZLIB_PATH to provide path to zlib. 343GIT_ARG_SET_PATH(zlib) 344# 345# Declare the with-tcltk/without-tcltk options. 346AC_ARG_WITH(tcltk, 347AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)]) 348AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.]) 349AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if]) 350AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\ 351GIT_PARSE_WITH(tcltk)) 352# 353 354 355## Checks for programs. 356AC_MSG_NOTICE([CHECKS for programs]) 357# 358AC_PROG_CC([cc gcc]) 359AC_C_INLINE 360case $ac_cv_c_inline in 361 inline | yes | no) ;; 362 *) AC_SUBST([INLINE], [$ac_cv_c_inline]) ;; 363esac 364 365# which switch to pass runtime path to dynamic libraries to the linker 366AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [ 367 SAVE_LDFLAGS="${LDFLAGS}" 368 LDFLAGS="${SAVE_LDFLAGS} -R /" 369 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no]) 370 LDFLAGS="${SAVE_LDFLAGS}" 371]) 372if test "$git_cv_ld_dashr" = "yes"; then 373 AC_SUBST(CC_LD_DYNPATH, [-R]) 374else 375 AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [ 376 SAVE_LDFLAGS="${LDFLAGS}" 377 LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/" 378 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no]) 379 LDFLAGS="${SAVE_LDFLAGS}" 380 ]) 381 if test "$git_cv_ld_wl_rpath" = "yes"; then 382 AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,]) 383 else 384 AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [ 385 SAVE_LDFLAGS="${LDFLAGS}" 386 LDFLAGS="${SAVE_LDFLAGS} -rpath /" 387 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no]) 388 LDFLAGS="${SAVE_LDFLAGS}" 389 ]) 390 if test "$git_cv_ld_rpath" = "yes"; then 391 AC_SUBST(CC_LD_DYNPATH, [-rpath]) 392 else 393 AC_MSG_WARN([linker does not support runtime path to dynamic libraries]) 394 fi 395 fi 396fi 397#AC_PROG_INSTALL # needs install-sh or install.sh in sources 398AC_CHECK_TOOLS(AR, [gar ar], :) 399AC_CHECK_PROGS(TAR, [gtar tar]) 400AC_CHECK_PROGS(DIFF, [gnudiff gdiff diff]) 401# TCLTK_PATH will be set to some value if we want Tcl/Tk 402# or will be empty otherwise. 403if test -z "$NO_TCLTK"; then 404 if test "$with_tcltk" = ""; then 405 # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'. 406 TCLTK_PATH=wish 407 AC_SUBST(TCLTK_PATH) 408 elif test "$with_tcltk" = "yes"; then 409 # Tcl/Tk check requested. 410 AC_CHECK_PROGS(TCLTK_PATH, [wish], ) 411 else 412 AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk]) 413 TCLTK_PATH="$with_tcltk" 414 AC_SUBST(TCLTK_PATH) 415 fi 416fi 417AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) 418if test -n "$ASCIIDOC"; then 419 AC_MSG_CHECKING([for asciidoc version]) 420 asciidoc_version=`$ASCIIDOC --version 2>/dev/null` 421 case "${asciidoc_version}" in 422 asciidoc' '7*) 423 ASCIIDOC7=YesPlease 424 AC_MSG_RESULT([${asciidoc_version} > 7]) 425 ;; 426 asciidoc' '8*) 427 ASCIIDOC7= 428 AC_MSG_RESULT([${asciidoc_version}]) 429 ;; 430 *) 431 ASCIIDOC7= 432 AC_MSG_RESULT([${asciidoc_version} (unknown)]) 433 ;; 434 esac 435fi 436AC_SUBST(ASCIIDOC7) 437 438 439## Checks for libraries. 440AC_MSG_NOTICE([CHECKS for libraries]) 441# 442# Define NO_OPENSSL environment variable if you do not have OpenSSL. 443# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). 444 445GIT_STASH_FLAGS($OPENSSLDIR) 446 447AC_CHECK_LIB([crypto], [SHA1_Init], 448[NEEDS_SSL_WITH_CRYPTO=], 449[AC_CHECK_LIB([ssl], [SHA1_Init], 450 [NEEDS_SSL_WITH_CRYPTO=YesPlease], 451 [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])]) 452 453GIT_UNSTASH_FLAGS($OPENSSLDIR) 454 455AC_SUBST(NEEDS_SSL_WITH_CRYPTO) 456AC_SUBST(NO_OPENSSL) 457 458# 459# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be 460# able to use Perl-compatible regular expressions. 461# 462 463if test -n "$USE_LIBPCRE"; then 464 465GIT_STASH_FLAGS($LIBPCREDIR) 466 467AC_CHECK_LIB([pcre], [pcre_version], 468[USE_LIBPCRE=YesPlease], 469[USE_LIBPCRE=]) 470 471GIT_UNSTASH_FLAGS($LIBPCREDIR) 472 473AC_SUBST(USE_LIBPCRE) 474 475fi 476 477# 478# Define NO_CURL if you do not have libcurl installed. git-http-pull and 479# git-http-push are not built, and you cannot use http:// and https:// 480# transports. 481 482GIT_STASH_FLAGS($CURLDIR) 483 484AC_CHECK_LIB([curl], [curl_global_init], 485[NO_CURL=], 486[NO_CURL=YesPlease]) 487 488GIT_UNSTASH_FLAGS($CURLDIR) 489 490AC_SUBST(NO_CURL) 491 492# 493# Define NO_EXPAT if you do not have expat installed. git-http-push is 494# not built, and you cannot push using http:// and https:// transports. 495 496GIT_STASH_FLAGS($EXPATDIR) 497 498AC_CHECK_LIB([expat], [XML_ParserCreate], 499[NO_EXPAT=], 500[NO_EXPAT=YesPlease]) 501 502GIT_UNSTASH_FLAGS($EXPATDIR) 503 504AC_SUBST(NO_EXPAT) 505 506# 507# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and 508# some Solaris installations). 509# Define NO_ICONV if neither libc nor libiconv support iconv. 510 511if test -z "$NO_ICONV"; then 512 513GIT_STASH_FLAGS($ICONVDIR) 514 515AC_DEFUN([ICONVTEST_SRC], 516[AC_LANG_PROGRAM([#include <iconv.h>], 517 [iconv_open("", "");])]) 518 519if test -n "$ICONVDIR"; then 520 lib_order="-liconv -lc" 521else 522 lib_order="-lc -liconv" 523fi 524 525NO_ICONV=YesPlease 526 527for l in $lib_order; do 528 if test "$l" = "-liconv"; then 529 NEEDS_LIBICONV=YesPlease 530 else 531 NEEDS_LIBICONV= 532 fi 533 534 old_LIBS="$LIBS" 535 LIBS="$LIBS $l" 536 AC_MSG_CHECKING([for iconv in $l]) 537 AC_LINK_IFELSE([ICONVTEST_SRC], 538 [AC_MSG_RESULT([yes]) 539 NO_ICONV= 540 break], 541 [AC_MSG_RESULT([no])]) 542 LIBS="$old_LIBS" 543done 544 545#in case of break 546LIBS="$old_LIBS" 547 548GIT_UNSTASH_FLAGS($ICONVDIR) 549 550AC_SUBST(NEEDS_LIBICONV) 551AC_SUBST(NO_ICONV) 552 553if test -n "$NO_ICONV"; then 554 NEEDS_LIBICONV= 555fi 556 557fi 558 559# 560# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. 561 562GIT_STASH_FLAGS($ZLIB_PATH) 563 564AC_DEFUN([ZLIBTEST_SRC], [ 565AC_LANG_PROGRAM([#include <zlib.h>], 566 [deflateBound(0, 0);])]) 567AC_MSG_CHECKING([for deflateBound in -lz]) 568old_LIBS="$LIBS" 569LIBS="$LIBS -lz" 570AC_LINK_IFELSE([ZLIBTEST_SRC], 571 [AC_MSG_RESULT([yes])], 572 [AC_MSG_RESULT([no]) 573 NO_DEFLATE_BOUND=yes]) 574LIBS="$old_LIBS" 575 576GIT_UNSTASH_FLAGS($ZLIB_PATH) 577 578AC_SUBST(NO_DEFLATE_BOUND) 579 580# 581# Define NEEDS_SOCKET if linking with libc is not enough (SunOS, 582# Patrick Mauritz). 583AC_CHECK_LIB([c], [socket], 584[NEEDS_SOCKET=], 585[NEEDS_SOCKET=YesPlease]) 586AC_SUBST(NEEDS_SOCKET) 587test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" 588 589# 590# The next few tests will define NEEDS_RESOLV if linking with 591# libresolv provides some of the functions we would normally get 592# from libc. 593NEEDS_RESOLV= 594AC_SUBST(NEEDS_RESOLV) 595# 596# Define NO_INET_NTOP if linking with -lresolv is not enough. 597# Solaris 2.7 in particular hos inet_ntop in -lresolv. 598NO_INET_NTOP= 599AC_SUBST(NO_INET_NTOP) 600AC_CHECK_FUNC([inet_ntop], 601 [], 602 [AC_CHECK_LIB([resolv], [inet_ntop], 603 [NEEDS_RESOLV=YesPlease], 604 [NO_INET_NTOP=YesPlease]) 605]) 606# 607# Define NO_INET_PTON if linking with -lresolv is not enough. 608# Solaris 2.7 in particular hos inet_pton in -lresolv. 609NO_INET_PTON= 610AC_SUBST(NO_INET_PTON) 611AC_CHECK_FUNC([inet_pton], 612 [], 613 [AC_CHECK_LIB([resolv], [inet_pton], 614 [NEEDS_RESOLV=YesPlease], 615 [NO_INET_PTON=YesPlease]) 616]) 617# 618# Define NO_HSTRERROR if linking with -lresolv is not enough. 619# Solaris 2.6 in particular has no hstrerror, even in -lresolv. 620NO_HSTRERROR= 621AC_CHECK_FUNC([hstrerror], 622 [], 623 [AC_CHECK_LIB([resolv], [hstrerror], 624 [NEEDS_RESOLV=YesPlease], 625 [NO_HSTRERROR=YesPlease]) 626]) 627AC_SUBST(NO_HSTRERROR) 628# 629# If any of the above tests determined that -lresolv is needed at 630# build-time, also set it here for remaining configure-time checks. 631test -n "$NEEDS_RESOLV" && LIBS="$LIBS -lresolv" 632 633AC_CHECK_LIB([c], [basename], 634[NEEDS_LIBGEN=], 635[NEEDS_LIBGEN=YesPlease]) 636AC_SUBST(NEEDS_LIBGEN) 637test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen" 638 639## Checks for header files. 640AC_MSG_NOTICE([CHECKS for header files]) 641# 642# Define NO_SYS_SELECT_H if you don't have sys/select.h. 643AC_CHECK_HEADER([sys/select.h], 644[NO_SYS_SELECT_H=], 645[NO_SYS_SELECT_H=UnfortunatelyYes]) 646AC_SUBST(NO_SYS_SELECT_H) 647# 648# Define NO_SYS_POLL_H if you don't have sys/poll.h 649AC_CHECK_HEADER([sys/poll.h], 650[NO_SYS_POLL_H=], 651[NO_SYS_POLL_H=UnfortunatelyYes]) 652AC_SUBST(NO_SYS_POLL_H) 653# 654# Define NO_INTTYPES_H if you don't have inttypes.h 655AC_CHECK_HEADER([inttypes.h], 656[NO_INTTYPES_H=], 657[NO_INTTYPES_H=UnfortunatelyYes]) 658AC_SUBST(NO_INTTYPES_H) 659# 660# Define OLD_ICONV if your library has an old iconv(), where the second 661# (input buffer pointer) parameter is declared with type (const char **). 662AC_DEFUN([OLDICONVTEST_SRC], [ 663AC_LANG_PROGRAM([[ 664#include <iconv.h> 665 666extern size_t iconv(iconv_t cd, 667 char **inbuf, size_t *inbytesleft, 668 char **outbuf, size_t *outbytesleft); 669]], [])]) 670 671GIT_STASH_FLAGS($ICONVDIR) 672 673AC_MSG_CHECKING([for old iconv()]) 674AC_COMPILE_IFELSE([OLDICONVTEST_SRC], 675 [AC_MSG_RESULT([no])], 676 [AC_MSG_RESULT([yes]) 677 OLD_ICONV=UnfortunatelyYes]) 678 679GIT_UNSTASH_FLAGS($ICONVDIR) 680 681AC_SUBST(OLD_ICONV) 682 683## Checks for typedefs, structures, and compiler characteristics. 684AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) 685# 686TYPE_SOCKLEN_T 687case $ac_cv_type_socklen_t in 688 yes) ;; 689 *) AC_SUBST([SOCKLEN_T], [$git_cv_socklen_t_equiv]) ;; 690esac 691 692# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. 693AC_CHECK_MEMBER(struct dirent.d_ino, 694[NO_D_INO_IN_DIRENT=], 695[NO_D_INO_IN_DIRENT=YesPlease], 696[#include <dirent.h>]) 697AC_SUBST(NO_D_INO_IN_DIRENT) 698# 699# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks 700# d_type in struct dirent (latest Cygwin -- will be fixed soonish). 701AC_CHECK_MEMBER(struct dirent.d_type, 702[NO_D_TYPE_IN_DIRENT=], 703[NO_D_TYPE_IN_DIRENT=YesPlease], 704[#include <dirent.h>]) 705AC_SUBST(NO_D_TYPE_IN_DIRENT) 706# 707# Define NO_SOCKADDR_STORAGE if your platform does not have struct 708# sockaddr_storage. 709AC_CHECK_TYPE(struct sockaddr_storage, 710[NO_SOCKADDR_STORAGE=], 711[NO_SOCKADDR_STORAGE=YesPlease],[ 712#include <sys/types.h> 713#include <sys/socket.h> 714]) 715AC_SUBST(NO_SOCKADDR_STORAGE) 716# 717# Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). 718AC_CHECK_TYPE([struct addrinfo],[ 719 GIT_CHECK_FUNC([getaddrinfo], 720 [NO_IPV6=], 721 [NO_IPV6=YesPlease]) 722],[NO_IPV6=YesPlease],[ 723#include <sys/types.h> 724#include <sys/socket.h> 725#include <netdb.h> 726]) 727AC_SUBST(NO_IPV6) 728# 729# Define NO_REGEX if you have no or inferior regex support in your C library. 730AC_CACHE_CHECK([whether the platform regex can handle null bytes], 731 [ac_cv_c_excellent_regex], [ 732AC_EGREP_CPP(yippeeyeswehaveit, 733 AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 734#include <regex.h> 735], 736[#ifdef REG_STARTEND 737yippeeyeswehaveit 738#endif 739]), 740 [ac_cv_c_excellent_regex=yes], 741 [ac_cv_c_excellent_regex=no]) 742]) 743if test $ac_cv_c_excellent_regex = yes; then 744 NO_REGEX= 745else 746 NO_REGEX=YesPlease 747fi 748AC_SUBST(NO_REGEX) 749# 750# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds 751# when attempting to read from an fopen'ed directory. 752AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], 753 [ac_cv_fread_reads_directories], 754[ 755AC_RUN_IFELSE( 756 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 757 [[char c; 758 FILE *f = fopen(".", "r"); 759 return f && fread(&c, 1, 1, f)]])], 760 [ac_cv_fread_reads_directories=no], 761 [ac_cv_fread_reads_directories=yes]) 762]) 763if test $ac_cv_fread_reads_directories = yes; then 764 FREAD_READS_DIRECTORIES=UnfortunatelyYes 765else 766 FREAD_READS_DIRECTORIES= 767fi 768AC_SUBST(FREAD_READS_DIRECTORIES) 769# 770# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() 771# or vsnprintf() return -1 instead of number of characters which would 772# have been written to the final string if enough space had been available. 773AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], 774 [ac_cv_snprintf_returns_bogus], 775[ 776AC_RUN_IFELSE( 777 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 778 #include "stdarg.h" 779 780 int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) 781 { 782 int ret; 783 va_list ap; 784 va_start(ap, format); 785 ret = vsnprintf(str, maxsize, format, ap); 786 va_end(ap); 787 return ret; 788 }], 789 [[char buf[6]; 790 if (test_vsnprintf(buf, 3, "%s", "12345") != 5 791 || strcmp(buf, "12")) return 1; 792 if (snprintf(buf, 3, "%s", "12345") != 5 793 || strcmp(buf, "12")) return 1]])], 794 [ac_cv_snprintf_returns_bogus=no], 795 [ac_cv_snprintf_returns_bogus=yes]) 796]) 797if test $ac_cv_snprintf_returns_bogus = yes; then 798 SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes 799else 800 SNPRINTF_RETURNS_BOGUS= 801fi 802AC_SUBST(SNPRINTF_RETURNS_BOGUS) 803 804 805## Checks for library functions. 806## (in default C library and libraries checked by AC_CHECK_LIB) 807AC_MSG_NOTICE([CHECKS for library functions]) 808# 809# Define NO_LIBGEN_H if you don't have libgen.h. 810AC_CHECK_HEADER([libgen.h], 811[NO_LIBGEN_H=], 812[NO_LIBGEN_H=YesPlease]) 813AC_SUBST(NO_LIBGEN_H) 814# 815# Define HAVE_PATHS_H if you have paths.h. 816AC_CHECK_HEADER([paths.h], 817[HAVE_PATHS_H=YesPlease], 818[HAVE_PATHS_H=]) 819AC_SUBST(HAVE_PATHS_H) 820# 821# Define NO_STRCASESTR if you don't have strcasestr. 822GIT_CHECK_FUNC(strcasestr, 823[NO_STRCASESTR=], 824[NO_STRCASESTR=YesPlease]) 825AC_SUBST(NO_STRCASESTR) 826# 827# Define NO_STRTOK_R if you don't have strtok_r 828GIT_CHECK_FUNC(strtok_r, 829[NO_STRTOK_R=], 830[NO_STRTOK_R=YesPlease]) 831AC_SUBST(NO_STRTOK_R) 832# 833# Define NO_FNMATCH if you don't have fnmatch 834GIT_CHECK_FUNC(fnmatch, 835[NO_FNMATCH=], 836[NO_FNMATCH=YesPlease]) 837AC_SUBST(NO_FNMATCH) 838# 839# Define NO_FNMATCH_CASEFOLD if your fnmatch function doesn't have the 840# FNM_CASEFOLD GNU extension. 841AC_CACHE_CHECK([whether the fnmatch function supports the FNMATCH_CASEFOLD GNU extension], 842 [ac_cv_c_excellent_fnmatch], [ 843AC_EGREP_CPP(yippeeyeswehaveit, 844 AC_LANG_PROGRAM([ 845#include <fnmatch.h> 846], 847[#ifdef FNM_CASEFOLD 848yippeeyeswehaveit 849#endif 850]), 851 [ac_cv_c_excellent_fnmatch=yes], 852 [ac_cv_c_excellent_fnmatch=no]) 853]) 854if test $ac_cv_c_excellent_fnmatch = yes; then 855 NO_FNMATCH_CASEFOLD= 856else 857 NO_FNMATCH_CASEFOLD=YesPlease 858fi 859AC_SUBST(NO_FNMATCH_CASEFOLD) 860# 861# Define NO_MEMMEM if you don't have memmem. 862GIT_CHECK_FUNC(memmem, 863[NO_MEMMEM=], 864[NO_MEMMEM=YesPlease]) 865AC_SUBST(NO_MEMMEM) 866# 867# Define NO_STRLCPY if you don't have strlcpy. 868GIT_CHECK_FUNC(strlcpy, 869[NO_STRLCPY=], 870[NO_STRLCPY=YesPlease]) 871AC_SUBST(NO_STRLCPY) 872# 873# Define NO_UINTMAX_T if your platform does not have uintmax_t 874AC_CHECK_TYPE(uintmax_t, 875[NO_UINTMAX_T=], 876[NO_UINTMAX_T=YesPlease],[ 877#include <inttypes.h> 878]) 879AC_SUBST(NO_UINTMAX_T) 880# 881# Define NO_STRTOUMAX if you don't have strtoumax in the C library. 882GIT_CHECK_FUNC(strtoumax, 883[NO_STRTOUMAX=], 884[NO_STRTOUMAX=YesPlease]) 885AC_SUBST(NO_STRTOUMAX) 886# 887# Define NO_SETENV if you don't have setenv in the C library. 888GIT_CHECK_FUNC(setenv, 889[NO_SETENV=], 890[NO_SETENV=YesPlease]) 891AC_SUBST(NO_SETENV) 892# 893# Define NO_UNSETENV if you don't have unsetenv in the C library. 894GIT_CHECK_FUNC(unsetenv, 895[NO_UNSETENV=], 896[NO_UNSETENV=YesPlease]) 897AC_SUBST(NO_UNSETENV) 898# 899# Define NO_MKDTEMP if you don't have mkdtemp in the C library. 900GIT_CHECK_FUNC(mkdtemp, 901[NO_MKDTEMP=], 902[NO_MKDTEMP=YesPlease]) 903AC_SUBST(NO_MKDTEMP) 904# 905# Define NO_MKSTEMPS if you don't have mkstemps in the C library. 906GIT_CHECK_FUNC(mkstemps, 907[NO_MKSTEMPS=], 908[NO_MKSTEMPS=YesPlease]) 909AC_SUBST(NO_MKSTEMPS) 910# 911# Define NO_INITGROUPS if you don't have initgroups in the C library. 912GIT_CHECK_FUNC(initgroups, 913[NO_INITGROUPS=], 914[NO_INITGROUPS=YesPlease]) 915AC_SUBST(NO_INITGROUPS) 916# 917# 918# Define NO_MMAP if you want to avoid mmap. 919# 920# Define NO_ICONV if your libc does not properly support iconv. 921 922 923## Other checks. 924# Define USE_PIC if you need the main git objects to be built with -fPIC 925# in order to build and link perl/Git.so. x86-64 seems to need this. 926# 927# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. 928# Enable it on Windows. By default, symrefs are still used. 929# 930# Define NO_PTHREADS if we do not have pthreads. 931# 932# Define PTHREAD_LIBS to the linker flag used for Pthread support. 933AC_DEFUN([PTHREADTEST_SRC], [ 934AC_LANG_PROGRAM([[ 935#include <pthread.h> 936]], [[ 937 pthread_mutex_t test_mutex; 938 pthread_key_t test_key; 939 int retcode = 0; 940 retcode |= pthread_key_create(&test_key, (void *)0); 941 retcode |= pthread_mutex_init(&test_mutex,(void *)0); 942 retcode |= pthread_mutex_lock(&test_mutex); 943 retcode |= pthread_mutex_unlock(&test_mutex); 944 return retcode; 945]])]) 946 947dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM( 948dnl [[#include <pthread.h>]], 949dnl [[pthread_mutex_t test_mutex;]] 950dnl )]) 951 952NO_PTHREADS=UnfortunatelyYes 953PTHREAD_LIBS= 954 955if test -n "$USER_NOPTHREAD"; then 956 AC_MSG_NOTICE([Skipping POSIX Threads at user request.]) 957# handle these separately since PTHREAD_CFLAGS could be '-lpthreads 958# -D_REENTRANT' or some such. 959elif test -z "$PTHREAD_CFLAGS"; then 960 threads_found=no 961 for opt in -mt -pthread -lpthread; do 962 old_CFLAGS="$CFLAGS" 963 CFLAGS="$opt $CFLAGS" 964 AC_MSG_CHECKING([Checking for POSIX Threads with '$opt']) 965 AC_LINK_IFELSE([PTHREADTEST_SRC], 966 [AC_MSG_RESULT([yes]) 967 NO_PTHREADS= 968 PTHREAD_LIBS="$opt" 969 PTHREAD_CFLAGS="$opt" 970 threads_found=yes 971 break 972 ], 973 [AC_MSG_RESULT([no])]) 974 CFLAGS="$old_CFLAGS" 975 done 976 if test $threads_found != yes; then 977 AC_CHECK_LIB([pthread], [pthread_create], 978 [PTHREAD_LIBS="-lpthread"], 979 [NO_PTHREADS=UnfortunatelyYes]) 980 fi 981else 982 old_CFLAGS="$CFLAGS" 983 CFLAGS="$PTHREAD_CFLAGS $CFLAGS" 984 AC_MSG_CHECKING([Checking for POSIX Threads with '$PTHREAD_CFLAGS']) 985 AC_LINK_IFELSE([PTHREADTEST_SRC], 986 [AC_MSG_RESULT([yes]) 987 NO_PTHREADS= 988 PTHREAD_LIBS="$PTHREAD_CFLAGS" 989 ], 990 [AC_MSG_RESULT([no])]) 991 992 CFLAGS="$old_CFLAGS" 993fi 994 995CFLAGS="$old_CFLAGS" 996 997AC_SUBST(PTHREAD_CFLAGS) 998AC_SUBST(PTHREAD_LIBS) 999AC_SUBST(NO_PTHREADS)10001001## Output files1002AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])1003AC_OUTPUT100410051006## Cleanup1007rm -f "${config_append}"