1# -*- Autoconf -*- 2# Process this file with autoconf to produce a configure script. 3 4## Definitions of macros 5# GIT_CONF_APPEND_LINE(LINE) 6# -------------------------- 7# Append LINE to file ${config_append} 8AC_DEFUN([GIT_CONF_APPEND_LINE], 9[echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE 10# 11# GIT_ARG_SET_PATH(PROGRAM) 12# ------------------------- 13# Provide --with-PROGRAM=PATH option to set PATH to PROGRAM 14# Optional second argument allows setting NO_PROGRAM=YesPlease if 15# --without-PROGRAM version used. 16AC_DEFUN([GIT_ARG_SET_PATH], 17[AC_ARG_WITH([$1], 18 [AS_HELP_STRING([--with-$1=PATH], 19 [provide PATH to $1])], 20 [GIT_CONF_APPEND_PATH($1,$2)],[]) 21])# GIT_ARG_SET_PATH 22# 23# GIT_CONF_APPEND_PATH(PROGRAM) 24# ------------------------------ 25# Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH 26# Used by GIT_ARG_SET_PATH(PROGRAM) 27# Optional second argument allows setting NO_PROGRAM=YesPlease if 28# --without-PROGRAM is used. 29AC_DEFUN([GIT_CONF_APPEND_PATH], 30[m4_pushdef([GIT_UC_PROGRAM], m4_toupper([$1]))dnl 31PROGRAM=GIT_UC_PROGRAM; \ 32if test "$withval" = "no"; then \ 33 if test -n "$2"; then \ 34 GIT_UC_PROGRAM[]_PATH=$withval; \ 35 AC_MSG_NOTICE([Disabling use of ${PROGRAM}]); \ 36 GIT_CONF_APPEND_LINE(NO_${PROGRAM}=YesPlease); \ 37 GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=); \ 38 else \ 39 AC_MSG_ERROR([You cannot use git without $1]); \ 40 fi; \ 41else \ 42 if test "$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 $withval]); \ 47 GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \ 48 fi; \ 49fi; \ 50m4_popdef([GIT_UC_PROGRAM])]) # 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[m4_pushdef([GIT_UC_PACKAGE], m4_toupper([$1]))dnl 60PACKAGE=GIT_UC_PACKAGE; \ 61if test "$withval" = "no"; then \ 62 NO_[]GIT_UC_PACKAGE=YesPlease; \ 63elif test "$withval" = "yes"; then \ 64 NO_[]GIT_UC_PACKAGE=; \ 65else \ 66 NO_[]GIT_UC_PACKAGE=; \ 67 GIT_UC_PACKAGE[]DIR=$withval; \ 68 AC_MSG_NOTICE([Setting GIT_UC_PACKAGE[]DIR to $withval]); \ 69 GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \ 70fi \ 71m4_popdef([GIT_UC_PACKAGE])]) # GIT_PARSE_WITH 72# 73# GIT_PARSE_WITH_SET_MAKE_VAR(WITHNAME, VAR, HELP_TEXT) 74# --------------------- 75# Set VAR to the value specied by --with-WITHNAME. 76# No verification of arguments is performed, but warnings are issued 77# if either 'yes' or 'no' is specified. 78# HELP_TEXT is presented when --help is called. 79# This is a direct way to allow setting variables in the Makefile. 80AC_DEFUN([GIT_PARSE_WITH_SET_MAKE_VAR], 81[AC_ARG_WITH([$1], 82 [AS_HELP_STRING([--with-$1=VALUE], $3)], 83 if test -n "$withval"; then \ 84 if test "$withval" = "yes" -o "$withval" = "no"; then \ 85 AC_MSG_WARN([You likely do not want either 'yes' or 'no' as] 86 [a value for $1 ($2). Maybe you do...?]); \ 87 fi; \ 88 \ 89 AC_MSG_NOTICE([Setting $2 to $withval]); \ 90 GIT_CONF_APPEND_LINE($2=$withval); \ 91 fi)])# GIT_PARSE_WITH_SET_MAKE_VAR 92 93dnl 94dnl GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE) 95dnl ----------------------------------------- 96dnl Similar to AC_CHECK_FUNC, but on systems that do not generate 97dnl warnings for missing prototypes (e.g. FreeBSD when compiling without 98dnl -Wall), it does not work. By looking for function definition in 99dnl libraries, this problem can be worked around. 100AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[ 101 AC_SEARCH_LIBS([$1],, 102 [$2],[$3]) 103],[$3])]) 104 105dnl 106dnl GIT_STASH_FLAGS(BASEPATH_VAR) 107dnl ----------------------------- 108dnl Allow for easy stashing of LDFLAGS and CPPFLAGS before running 109dnl tests that may want to take user settings into account. 110AC_DEFUN([GIT_STASH_FLAGS],[ 111if test -n "$1"; then 112 old_CPPFLAGS="$CPPFLAGS" 113 old_LDFLAGS="$LDFLAGS" 114 CPPFLAGS="-I$1/include $CPPFLAGS" 115 LDFLAGS="-L$1/$lib $LDFLAGS" 116fi 117]) 118 119dnl 120dnl GIT_UNSTASH_FLAGS(BASEPATH_VAR) 121dnl ----------------------------- 122dnl Restore the stashed *FLAGS values. 123AC_DEFUN([GIT_UNSTASH_FLAGS],[ 124if test -n "$1"; then 125 CPPFLAGS="$old_CPPFLAGS" 126 LDFLAGS="$old_LDFLAGS" 127fi 128]) 129 130## Configure body starts here. 131 132AC_PREREQ(2.59) 133AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org]) 134 135AC_CONFIG_SRCDIR([git.c]) 136 137config_file=config.mak.autogen 138config_append=config.mak.append 139config_in=config.mak.in 140 141echo "# ${config_append}. Generated by configure." > "${config_append}" 142 143# Directories holding "saner" versions of common or POSIX binaries. 144AC_ARG_WITH([sane-tool-path], 145 [AS_HELP_STRING( 146 [--with-sane-tool-path=DIR-1[[:DIR-2...:DIR-n]]], 147 [Directories to prepend to PATH in build system and generated scripts])], 148 [if test "$withval" = "no"; then 149 withval='' 150 else 151 AC_MSG_NOTICE([Setting SANE_TOOL_PATH to '$withval']) 152 fi 153 GIT_CONF_APPEND_LINE([SANE_TOOL_PATH=$withval])], 154 [# If the "--with-sane-tool-path" option was not given, don't touch 155 # SANE_TOOL_PATH here, but let defaults in Makefile take care of it. 156 # This should minimize spurious differences in the behaviour of the 157 # Git build system when configure is used w.r.t. when it is not. 158 :]) 159 160## Site configuration related to programs (before tests) 161## --with-PACKAGE[=ARG] and --without-PACKAGE 162# 163# Set lib to alternative name of lib directory (e.g. lib64) 164AC_ARG_WITH([lib], 165 [AS_HELP_STRING([--with-lib=ARG], 166 [ARG specifies alternative name for lib directory])], 167 [if test "$withval" = "no" || test "$withval" = "yes"; then \ 168 AC_MSG_WARN([You should provide name for --with-lib=ARG]); \ 169else \ 170 lib=$withval; \ 171 AC_MSG_NOTICE([Setting lib to '$lib']); \ 172 GIT_CONF_APPEND_LINE(lib=$withval); \ 173fi; \ 174],[]) 175 176if test -z "$lib"; then 177 AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) 178 lib=lib 179fi 180 181AC_ARG_ENABLE([pthreads], 182 [AS_HELP_STRING([--enable-pthreads=FLAGS], 183 [FLAGS is the value to pass to the compiler to enable POSIX Threads.] 184 [The default if FLAGS is not specified is to try first -pthread] 185 [and then -lpthread.] 186 [--without-pthreads will disable threading.])], 187[ 188if test "x$enableval" = "xyes"; then 189 AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads]) 190elif test "x$enableval" != "xno"; then 191 PTHREAD_CFLAGS=$enableval 192 AC_MSG_NOTICE([Setting '$PTHREAD_CFLAGS' as the FLAGS to enable POSIX Threads]) 193else 194 AC_MSG_NOTICE([POSIX Threads will be disabled.]) 195 NO_PTHREADS=YesPlease 196 USER_NOPTHREAD=1 197fi], 198[ 199 AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads.]) 200]) 201 202# Define option to enable JavaScript minification 203AC_ARG_ENABLE([jsmin], 204[AS_HELP_STRING([--enable-jsmin=PATH], 205 [PATH is the name of a JavaScript minifier or the absolute path to one.])], 206[ 207 JSMIN=$enableval; 208 AC_MSG_NOTICE([Setting JSMIN to '$JSMIN' to enable JavaScript minifying]) 209 GIT_CONF_APPEND_LINE(JSMIN=$enableval); 210]) 211 212# Define option to enable CSS minification 213AC_ARG_ENABLE([cssmin], 214[AS_HELP_STRING([--enable-cssmin=PATH], 215 [PATH is the name of a CSS minifier or the absolute path to one.])], 216[ 217 CSSMIN=$enableval; 218 AC_MSG_NOTICE([Setting CSSMIN to '$CSSMIN' to enable CSS minifying]) 219 GIT_CONF_APPEND_LINE(CSSMIN=$enableval); 220]) 221 222## Site configuration (override autodetection) 223## --with-PACKAGE[=ARG] and --without-PACKAGE 224AC_MSG_NOTICE([CHECKS for site configuration]) 225# 226# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability 227# tests. These tests take up a significant amount of the total test time 228# but are not needed unless you plan to talk to SVN repos. 229# 230# Define PPC_SHA1 environment variable when running make to make use of 231# a bundled SHA1 routine optimized for PowerPC. 232# 233# Define NO_OPENSSL environment variable if you do not have OpenSSL. 234# This also implies BLK_SHA1. 235# 236# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in 237# /foo/bar/include and /foo/bar/lib directories. 238AC_ARG_WITH(openssl, 239AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) 240AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\ 241GIT_PARSE_WITH(openssl)) 242# 243# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be 244# able to use Perl-compatible regular expressions. 245# 246# Define LIBPCREDIR=/foo/bar if your libpcre header and library files are in 247# /foo/bar/include and /foo/bar/lib directories. 248# 249AC_ARG_WITH(libpcre, 250AS_HELP_STRING([--with-libpcre],[support Perl-compatible regexes (default is NO)]) 251AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]), 252if test "$withval" = "no"; then \ 253 USE_LIBPCRE=; \ 254elif test "$withval" = "yes"; then \ 255 USE_LIBPCRE=YesPlease; \ 256else 257 USE_LIBPCRE=YesPlease; \ 258 LIBPCREDIR=$withval; \ 259 AC_MSG_NOTICE([Setting LIBPCREDIR to $withval]); \ 260 GIT_CONF_APPEND_LINE(LIBPCREDIR=$withval); \ 261fi \ 262) 263# 264# Define NO_CURL if you do not have curl installed. git-http-pull and 265# git-http-push are not built, and you cannot use http:// and https:// 266# transports. 267# 268# Define CURLDIR=/foo/bar if your curl header and library files are in 269# /foo/bar/include and /foo/bar/lib directories. 270AC_ARG_WITH(curl, 271AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) 272AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), 273GIT_PARSE_WITH(curl)) 274# 275# Define NO_EXPAT if you do not have expat installed. git-http-push is 276# not built, and you cannot push using http:// and https:// transports. 277# 278# Define EXPATDIR=/foo/bar if your expat header and library files are in 279# /foo/bar/include and /foo/bar/lib directories. 280AC_ARG_WITH(expat, 281AS_HELP_STRING([--with-expat], 282[support git-push using http:// and https:// transports via WebDAV (default is YES)]) 283AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), 284GIT_PARSE_WITH(expat)) 285# 286# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink 287# installed in /sw, but don't want GIT to link against any libraries 288# installed there. If defined you may specify your own (or Fink's) 289# include directories and library directories by defining CFLAGS 290# and LDFLAGS appropriately. 291# 292# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, 293# have DarwinPorts installed in /opt/local, but don't want GIT to 294# link against any libraries installed there. If defined you may 295# specify your own (or DarwinPort's) include directories and 296# library directories by defining CFLAGS and LDFLAGS appropriately. 297# 298# Define NO_MMAP if you want to avoid mmap. 299# 300# Define NO_ICONV if your libc does not properly support iconv. 301AC_ARG_WITH(iconv, 302AS_HELP_STRING([--without-iconv], 303[if your architecture doesn't properly support iconv]) 304AS_HELP_STRING([--with-iconv=PATH], 305[PATH is prefix for libiconv library and headers]) 306AS_HELP_STRING([], 307[used only if you need linking with libiconv]), 308GIT_PARSE_WITH(iconv)) 309 310## --enable-FEATURE[=ARG] and --disable-FEATURE 311# 312# Define USE_NSEC below if you want git to care about sub-second file mtimes 313# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and 314# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely 315# randomly break unless your underlying filesystem supports those sub-second 316# times (my ext3 doesn't). 317# 318# Define USE_STDEV below if you want git to care about the underlying device 319# change being considered an inode change from the update-index perspective. 320 321# 322# Allow user to set ETC_GITCONFIG variable 323GIT_PARSE_WITH_SET_MAKE_VAR(gitconfig, ETC_GITCONFIG, 324 Use VALUE instead of /etc/gitconfig as the 325 global git configuration file. 326 If VALUE is not fully qualified it will be interpreted 327 as a path relative to the computed prefix at runtime.) 328 329# 330# Allow user to set ETC_GITATTRIBUTES variable 331GIT_PARSE_WITH_SET_MAKE_VAR(gitattributes, ETC_GITATTRIBUTES, 332 Use VALUE instead of /etc/gitattributes as the 333 global git attributes file. 334 If VALUE is not fully qualified it will be interpreted 335 as a path relative to the computed prefix at runtime.) 336 337# 338# Allow user to set the default pager 339GIT_PARSE_WITH_SET_MAKE_VAR(pager, DEFAULT_PAGER, 340 Use VALUE as the fall-back pager instead of 'less'. 341 This is used by things like 'git log' when the user 342 does not specify a pager to use through alternate 343 methods. eg: /usr/bin/pager) 344# 345# Allow user to set the default editor 346GIT_PARSE_WITH_SET_MAKE_VAR(editor, DEFAULT_EDITOR, 347 Use VALUE as the fall-back editor instead of 'vi'. 348 This is used by things like 'git commit' when the user 349 does not specify a preferred editor through other 350 methods. eg: /usr/bin/editor) 351 352# 353# Define SHELL_PATH to provide path to shell. 354GIT_ARG_SET_PATH(shell) 355# 356# Define PERL_PATH to provide path to Perl. 357GIT_ARG_SET_PATH(perl) 358# 359# Define PYTHON_PATH to provide path to Python. 360GIT_ARG_SET_PATH(python, allow-without) 361# 362# Define ZLIB_PATH to provide path to zlib. 363GIT_ARG_SET_PATH(zlib) 364# 365# Declare the with-tcltk/without-tcltk options. 366AC_ARG_WITH(tcltk, 367AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)]) 368AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.]) 369AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if]) 370AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\ 371GIT_PARSE_WITH(tcltk)) 372# 373 374 375## Checks for programs. 376AC_MSG_NOTICE([CHECKS for programs]) 377# 378AC_PROG_CC([cc gcc]) 379AC_C_INLINE 380case $ac_cv_c_inline in 381 inline | yes | no) ;; 382 *) AC_SUBST([INLINE], [$ac_cv_c_inline]) ;; 383esac 384 385# which switch to pass runtime path to dynamic libraries to the linker 386AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [ 387 SAVE_LDFLAGS="${LDFLAGS}" 388 LDFLAGS="${SAVE_LDFLAGS} -R /" 389 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no]) 390 LDFLAGS="${SAVE_LDFLAGS}" 391]) 392if test "$git_cv_ld_dashr" = "yes"; then 393 AC_SUBST(CC_LD_DYNPATH, [-R]) 394else 395 AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [ 396 SAVE_LDFLAGS="${LDFLAGS}" 397 LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/" 398 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no]) 399 LDFLAGS="${SAVE_LDFLAGS}" 400 ]) 401 if test "$git_cv_ld_wl_rpath" = "yes"; then 402 AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,]) 403 else 404 AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [ 405 SAVE_LDFLAGS="${LDFLAGS}" 406 LDFLAGS="${SAVE_LDFLAGS} -rpath /" 407 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no]) 408 LDFLAGS="${SAVE_LDFLAGS}" 409 ]) 410 if test "$git_cv_ld_rpath" = "yes"; then 411 AC_SUBST(CC_LD_DYNPATH, [-rpath]) 412 else 413 AC_MSG_WARN([linker does not support runtime path to dynamic libraries]) 414 fi 415 fi 416fi 417#AC_PROG_INSTALL # needs install-sh or install.sh in sources 418AC_CHECK_TOOLS(AR, [gar ar], :) 419AC_CHECK_PROGS(TAR, [gtar tar]) 420AC_CHECK_PROGS(DIFF, [gnudiff gdiff diff]) 421# TCLTK_PATH will be set to some value if we want Tcl/Tk 422# or will be empty otherwise. 423if test -z "$NO_TCLTK"; then 424 if test "$with_tcltk" = ""; then 425 # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'. 426 TCLTK_PATH=wish 427 AC_SUBST(TCLTK_PATH) 428 elif test "$with_tcltk" = "yes"; then 429 # Tcl/Tk check requested. 430 AC_CHECK_PROGS(TCLTK_PATH, [wish], ) 431 else 432 AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk]) 433 TCLTK_PATH="$with_tcltk" 434 AC_SUBST(TCLTK_PATH) 435 fi 436fi 437AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) 438if test -n "$ASCIIDOC"; then 439 AC_MSG_CHECKING([for asciidoc version]) 440 asciidoc_version=`$ASCIIDOC --version 2>/dev/null` 441 case "${asciidoc_version}" in 442 asciidoc' '7*) 443 ASCIIDOC7=YesPlease 444 AC_MSG_RESULT([${asciidoc_version} > 7]) 445 ;; 446 asciidoc' '8*) 447 ASCIIDOC7= 448 AC_MSG_RESULT([${asciidoc_version}]) 449 ;; 450 *) 451 ASCIIDOC7= 452 AC_MSG_RESULT([${asciidoc_version} (unknown)]) 453 ;; 454 esac 455fi 456AC_SUBST(ASCIIDOC7) 457 458 459## Checks for libraries. 460AC_MSG_NOTICE([CHECKS for libraries]) 461# 462# Define NO_OPENSSL environment variable if you do not have OpenSSL. 463# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). 464 465GIT_STASH_FLAGS($OPENSSLDIR) 466 467AC_CHECK_LIB([crypto], [SHA1_Init], 468[NEEDS_SSL_WITH_CRYPTO=], 469[AC_CHECK_LIB([ssl], [SHA1_Init], 470 [NEEDS_SSL_WITH_CRYPTO=YesPlease], 471 [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])]) 472 473GIT_UNSTASH_FLAGS($OPENSSLDIR) 474 475AC_SUBST(NEEDS_SSL_WITH_CRYPTO) 476AC_SUBST(NO_OPENSSL) 477 478# 479# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be 480# able to use Perl-compatible regular expressions. 481# 482 483if test -n "$USE_LIBPCRE"; then 484 485GIT_STASH_FLAGS($LIBPCREDIR) 486 487AC_CHECK_LIB([pcre], [pcre_version], 488[USE_LIBPCRE=YesPlease], 489[USE_LIBPCRE=]) 490 491GIT_UNSTASH_FLAGS($LIBPCREDIR) 492 493AC_SUBST(USE_LIBPCRE) 494 495fi 496 497# 498# Define NO_CURL if you do not have libcurl installed. git-http-pull and 499# git-http-push are not built, and you cannot use http:// and https:// 500# transports. 501 502GIT_STASH_FLAGS($CURLDIR) 503 504AC_CHECK_LIB([curl], [curl_global_init], 505[NO_CURL=], 506[NO_CURL=YesPlease]) 507 508GIT_UNSTASH_FLAGS($CURLDIR) 509 510AC_SUBST(NO_CURL) 511 512# 513# Define NO_EXPAT if you do not have expat installed. git-http-push is 514# not built, and you cannot push using http:// and https:// transports. 515 516GIT_STASH_FLAGS($EXPATDIR) 517 518AC_CHECK_LIB([expat], [XML_ParserCreate], 519[NO_EXPAT=], 520[NO_EXPAT=YesPlease]) 521 522GIT_UNSTASH_FLAGS($EXPATDIR) 523 524AC_SUBST(NO_EXPAT) 525 526# 527# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and 528# some Solaris installations). 529# Define NO_ICONV if neither libc nor libiconv support iconv. 530 531if test -z "$NO_ICONV"; then 532 533GIT_STASH_FLAGS($ICONVDIR) 534 535AC_DEFUN([ICONVTEST_SRC], 536[AC_LANG_PROGRAM([#include <iconv.h>], 537 [iconv_open("", "");])]) 538 539if test -n "$ICONVDIR"; then 540 lib_order="-liconv -lc" 541else 542 lib_order="-lc -liconv" 543fi 544 545NO_ICONV=YesPlease 546 547for l in $lib_order; do 548 if test "$l" = "-liconv"; then 549 NEEDS_LIBICONV=YesPlease 550 else 551 NEEDS_LIBICONV= 552 fi 553 554 old_LIBS="$LIBS" 555 LIBS="$LIBS $l" 556 AC_MSG_CHECKING([for iconv in $l]) 557 AC_LINK_IFELSE([ICONVTEST_SRC], 558 [AC_MSG_RESULT([yes]) 559 NO_ICONV= 560 break], 561 [AC_MSG_RESULT([no])]) 562 LIBS="$old_LIBS" 563done 564 565#in case of break 566LIBS="$old_LIBS" 567 568GIT_UNSTASH_FLAGS($ICONVDIR) 569 570AC_SUBST(NEEDS_LIBICONV) 571AC_SUBST(NO_ICONV) 572 573if test -n "$NO_ICONV"; then 574 NEEDS_LIBICONV= 575fi 576 577fi 578 579# 580# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. 581 582GIT_STASH_FLAGS($ZLIB_PATH) 583 584AC_DEFUN([ZLIBTEST_SRC], [ 585AC_LANG_PROGRAM([#include <zlib.h>], 586 [deflateBound(0, 0);])]) 587AC_MSG_CHECKING([for deflateBound in -lz]) 588old_LIBS="$LIBS" 589LIBS="$LIBS -lz" 590AC_LINK_IFELSE([ZLIBTEST_SRC], 591 [AC_MSG_RESULT([yes])], 592 [AC_MSG_RESULT([no]) 593 NO_DEFLATE_BOUND=yes]) 594LIBS="$old_LIBS" 595 596GIT_UNSTASH_FLAGS($ZLIB_PATH) 597 598AC_SUBST(NO_DEFLATE_BOUND) 599 600# 601# Define NEEDS_SOCKET if linking with libc is not enough (SunOS, 602# Patrick Mauritz). 603AC_CHECK_LIB([c], [socket], 604[NEEDS_SOCKET=], 605[NEEDS_SOCKET=YesPlease]) 606AC_SUBST(NEEDS_SOCKET) 607test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" 608 609# 610# The next few tests will define NEEDS_RESOLV if linking with 611# libresolv provides some of the functions we would normally get 612# from libc. 613NEEDS_RESOLV= 614AC_SUBST(NEEDS_RESOLV) 615# 616# Define NO_INET_NTOP if linking with -lresolv is not enough. 617# Solaris 2.7 in particular hos inet_ntop in -lresolv. 618NO_INET_NTOP= 619AC_SUBST(NO_INET_NTOP) 620AC_CHECK_FUNC([inet_ntop], 621 [], 622 [AC_CHECK_LIB([resolv], [inet_ntop], 623 [NEEDS_RESOLV=YesPlease], 624 [NO_INET_NTOP=YesPlease]) 625]) 626# 627# Define NO_INET_PTON if linking with -lresolv is not enough. 628# Solaris 2.7 in particular hos inet_pton in -lresolv. 629NO_INET_PTON= 630AC_SUBST(NO_INET_PTON) 631AC_CHECK_FUNC([inet_pton], 632 [], 633 [AC_CHECK_LIB([resolv], [inet_pton], 634 [NEEDS_RESOLV=YesPlease], 635 [NO_INET_PTON=YesPlease]) 636]) 637# 638# Define NO_HSTRERROR if linking with -lresolv is not enough. 639# Solaris 2.6 in particular has no hstrerror, even in -lresolv. 640NO_HSTRERROR= 641AC_CHECK_FUNC([hstrerror], 642 [], 643 [AC_CHECK_LIB([resolv], [hstrerror], 644 [NEEDS_RESOLV=YesPlease], 645 [NO_HSTRERROR=YesPlease]) 646]) 647AC_SUBST(NO_HSTRERROR) 648# 649# If any of the above tests determined that -lresolv is needed at 650# build-time, also set it here for remaining configure-time checks. 651test -n "$NEEDS_RESOLV" && LIBS="$LIBS -lresolv" 652 653AC_CHECK_LIB([c], [basename], 654[NEEDS_LIBGEN=], 655[NEEDS_LIBGEN=YesPlease]) 656AC_SUBST(NEEDS_LIBGEN) 657test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen" 658 659AC_CHECK_LIB([c], [gettext], 660[LIBC_CONTAINS_LIBINTL=YesPlease], 661[LIBC_CONTAINS_LIBINTL=]) 662AC_SUBST(LIBC_CONTAINS_LIBINTL) 663 664# 665# Define NO_GETTEXT if you don't want Git output to be translated. 666# A translated Git requires GNU libintl or another gettext implementation 667AC_CHECK_HEADER([libintl.h], 668[NO_GETTEXT=], 669[NO_GETTEXT=YesPlease]) 670AC_SUBST(NO_GETTEXT) 671 672if test -z "$NO_GETTEXT"; then 673 test -n "$LIBC_CONTAINS_LIBINTL" || LIBS="$LIBS -lintl" 674fi 675 676## Checks for header files. 677AC_MSG_NOTICE([CHECKS for header files]) 678# 679# Define NO_SYS_SELECT_H if you don't have sys/select.h. 680AC_CHECK_HEADER([sys/select.h], 681[NO_SYS_SELECT_H=], 682[NO_SYS_SELECT_H=UnfortunatelyYes]) 683AC_SUBST(NO_SYS_SELECT_H) 684# 685# Define NO_SYS_POLL_H if you don't have sys/poll.h 686AC_CHECK_HEADER([sys/poll.h], 687[NO_SYS_POLL_H=], 688[NO_SYS_POLL_H=UnfortunatelyYes]) 689AC_SUBST(NO_SYS_POLL_H) 690# 691# Define NO_INTTYPES_H if you don't have inttypes.h 692AC_CHECK_HEADER([inttypes.h], 693[NO_INTTYPES_H=], 694[NO_INTTYPES_H=UnfortunatelyYes]) 695AC_SUBST(NO_INTTYPES_H) 696# 697# Define OLD_ICONV if your library has an old iconv(), where the second 698# (input buffer pointer) parameter is declared with type (const char **). 699AC_DEFUN([OLDICONVTEST_SRC], [ 700AC_LANG_PROGRAM([[ 701#include <iconv.h> 702 703extern size_t iconv(iconv_t cd, 704 char **inbuf, size_t *inbytesleft, 705 char **outbuf, size_t *outbytesleft); 706]], [])]) 707 708GIT_STASH_FLAGS($ICONVDIR) 709 710AC_MSG_CHECKING([for old iconv()]) 711AC_COMPILE_IFELSE([OLDICONVTEST_SRC], 712 [AC_MSG_RESULT([no])], 713 [AC_MSG_RESULT([yes]) 714 OLD_ICONV=UnfortunatelyYes]) 715 716GIT_UNSTASH_FLAGS($ICONVDIR) 717 718AC_SUBST(OLD_ICONV) 719 720## Checks for typedefs, structures, and compiler characteristics. 721AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) 722# 723TYPE_SOCKLEN_T 724case $ac_cv_type_socklen_t in 725 yes) ;; 726 *) AC_SUBST([SOCKLEN_T], [$git_cv_socklen_t_equiv]) ;; 727esac 728 729# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. 730AC_CHECK_MEMBER(struct dirent.d_ino, 731[NO_D_INO_IN_DIRENT=], 732[NO_D_INO_IN_DIRENT=YesPlease], 733[#include <dirent.h>]) 734AC_SUBST(NO_D_INO_IN_DIRENT) 735# 736# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks 737# d_type in struct dirent (latest Cygwin -- will be fixed soonish). 738AC_CHECK_MEMBER(struct dirent.d_type, 739[NO_D_TYPE_IN_DIRENT=], 740[NO_D_TYPE_IN_DIRENT=YesPlease], 741[#include <dirent.h>]) 742AC_SUBST(NO_D_TYPE_IN_DIRENT) 743# 744# Define NO_SOCKADDR_STORAGE if your platform does not have struct 745# sockaddr_storage. 746AC_CHECK_TYPE(struct sockaddr_storage, 747[NO_SOCKADDR_STORAGE=], 748[NO_SOCKADDR_STORAGE=YesPlease],[ 749#include <sys/types.h> 750#include <sys/socket.h> 751]) 752AC_SUBST(NO_SOCKADDR_STORAGE) 753# 754# Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). 755AC_CHECK_TYPE([struct addrinfo],[ 756 GIT_CHECK_FUNC([getaddrinfo], 757 [NO_IPV6=], 758 [NO_IPV6=YesPlease]) 759],[NO_IPV6=YesPlease],[ 760#include <sys/types.h> 761#include <sys/socket.h> 762#include <netdb.h> 763]) 764AC_SUBST(NO_IPV6) 765# 766# Define NO_REGEX if you have no or inferior regex support in your C library. 767AC_CACHE_CHECK([whether the platform regex can handle null bytes], 768 [ac_cv_c_excellent_regex], [ 769AC_EGREP_CPP(yippeeyeswehaveit, 770 AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 771#include <regex.h> 772], 773[#ifdef REG_STARTEND 774yippeeyeswehaveit 775#endif 776]), 777 [ac_cv_c_excellent_regex=yes], 778 [ac_cv_c_excellent_regex=no]) 779]) 780if test $ac_cv_c_excellent_regex = yes; then 781 NO_REGEX= 782else 783 NO_REGEX=YesPlease 784fi 785AC_SUBST(NO_REGEX) 786# 787# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds 788# when attempting to read from an fopen'ed directory. 789AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], 790 [ac_cv_fread_reads_directories], 791[ 792AC_RUN_IFELSE( 793 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 794 [[char c; 795 FILE *f = fopen(".", "r"); 796 return f && fread(&c, 1, 1, f)]])], 797 [ac_cv_fread_reads_directories=no], 798 [ac_cv_fread_reads_directories=yes]) 799]) 800if test $ac_cv_fread_reads_directories = yes; then 801 FREAD_READS_DIRECTORIES=UnfortunatelyYes 802else 803 FREAD_READS_DIRECTORIES= 804fi 805AC_SUBST(FREAD_READS_DIRECTORIES) 806# 807# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() 808# or vsnprintf() return -1 instead of number of characters which would 809# have been written to the final string if enough space had been available. 810AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], 811 [ac_cv_snprintf_returns_bogus], 812[ 813AC_RUN_IFELSE( 814 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 815 #include "stdarg.h" 816 817 int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) 818 { 819 int ret; 820 va_list ap; 821 va_start(ap, format); 822 ret = vsnprintf(str, maxsize, format, ap); 823 va_end(ap); 824 return ret; 825 }], 826 [[char buf[6]; 827 if (test_vsnprintf(buf, 3, "%s", "12345") != 5 828 || strcmp(buf, "12")) return 1; 829 if (snprintf(buf, 3, "%s", "12345") != 5 830 || strcmp(buf, "12")) return 1]])], 831 [ac_cv_snprintf_returns_bogus=no], 832 [ac_cv_snprintf_returns_bogus=yes]) 833]) 834if test $ac_cv_snprintf_returns_bogus = yes; then 835 SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes 836else 837 SNPRINTF_RETURNS_BOGUS= 838fi 839AC_SUBST(SNPRINTF_RETURNS_BOGUS) 840 841 842## Checks for library functions. 843## (in default C library and libraries checked by AC_CHECK_LIB) 844AC_MSG_NOTICE([CHECKS for library functions]) 845# 846# Define NO_LIBGEN_H if you don't have libgen.h. 847AC_CHECK_HEADER([libgen.h], 848[NO_LIBGEN_H=], 849[NO_LIBGEN_H=YesPlease]) 850AC_SUBST(NO_LIBGEN_H) 851# 852# Define HAVE_PATHS_H if you have paths.h. 853AC_CHECK_HEADER([paths.h], 854[HAVE_PATHS_H=YesPlease], 855[HAVE_PATHS_H=]) 856AC_SUBST(HAVE_PATHS_H) 857# 858# Define HAVE_LIBCHARSET_H if have libcharset.h 859AC_CHECK_HEADER([libcharset.h], 860[HAVE_LIBCHARSET_H=YesPlease], 861[HAVE_LIBCHARSET_H=]) 862AC_SUBST(HAVE_LIBCHARSET_H) 863# Define CHARSET_LIB if libiconv does not export the locale_charset symbol 864# and libcharset does 865CHARSET_LIB= 866AC_CHECK_LIB([iconv], [locale_charset], 867 [], 868 [AC_CHECK_LIB([charset], [locale_charset], 869 [CHARSET_LIB=-lcharset]) 870 ] 871) 872AC_SUBST(CHARSET_LIB) 873# 874# Define NO_STRCASESTR if you don't have strcasestr. 875GIT_CHECK_FUNC(strcasestr, 876[NO_STRCASESTR=], 877[NO_STRCASESTR=YesPlease]) 878AC_SUBST(NO_STRCASESTR) 879# 880# Define NO_STRTOK_R if you don't have strtok_r 881GIT_CHECK_FUNC(strtok_r, 882[NO_STRTOK_R=], 883[NO_STRTOK_R=YesPlease]) 884AC_SUBST(NO_STRTOK_R) 885# 886# Define NO_FNMATCH if you don't have fnmatch 887GIT_CHECK_FUNC(fnmatch, 888[NO_FNMATCH=], 889[NO_FNMATCH=YesPlease]) 890AC_SUBST(NO_FNMATCH) 891# 892# Define NO_FNMATCH_CASEFOLD if your fnmatch function doesn't have the 893# FNM_CASEFOLD GNU extension. 894AC_CACHE_CHECK([whether the fnmatch function supports the FNMATCH_CASEFOLD GNU extension], 895 [ac_cv_c_excellent_fnmatch], [ 896AC_EGREP_CPP(yippeeyeswehaveit, 897 AC_LANG_PROGRAM([ 898#include <fnmatch.h> 899], 900[#ifdef FNM_CASEFOLD 901yippeeyeswehaveit 902#endif 903]), 904 [ac_cv_c_excellent_fnmatch=yes], 905 [ac_cv_c_excellent_fnmatch=no]) 906]) 907if test $ac_cv_c_excellent_fnmatch = yes; then 908 NO_FNMATCH_CASEFOLD= 909else 910 NO_FNMATCH_CASEFOLD=YesPlease 911fi 912AC_SUBST(NO_FNMATCH_CASEFOLD) 913# 914# Define NO_MEMMEM if you don't have memmem. 915GIT_CHECK_FUNC(memmem, 916[NO_MEMMEM=], 917[NO_MEMMEM=YesPlease]) 918AC_SUBST(NO_MEMMEM) 919# 920# Define NO_STRLCPY if you don't have strlcpy. 921GIT_CHECK_FUNC(strlcpy, 922[NO_STRLCPY=], 923[NO_STRLCPY=YesPlease]) 924AC_SUBST(NO_STRLCPY) 925# 926# Define NO_UINTMAX_T if your platform does not have uintmax_t 927AC_CHECK_TYPE(uintmax_t, 928[NO_UINTMAX_T=], 929[NO_UINTMAX_T=YesPlease],[ 930#include <inttypes.h> 931]) 932AC_SUBST(NO_UINTMAX_T) 933# 934# Define NO_STRTOUMAX if you don't have strtoumax in the C library. 935GIT_CHECK_FUNC(strtoumax, 936[NO_STRTOUMAX=], 937[NO_STRTOUMAX=YesPlease]) 938AC_SUBST(NO_STRTOUMAX) 939# 940# Define NO_SETENV if you don't have setenv in the C library. 941GIT_CHECK_FUNC(setenv, 942[NO_SETENV=], 943[NO_SETENV=YesPlease]) 944AC_SUBST(NO_SETENV) 945# 946# Define NO_UNSETENV if you don't have unsetenv in the C library. 947GIT_CHECK_FUNC(unsetenv, 948[NO_UNSETENV=], 949[NO_UNSETENV=YesPlease]) 950AC_SUBST(NO_UNSETENV) 951# 952# Define NO_MKDTEMP if you don't have mkdtemp in the C library. 953GIT_CHECK_FUNC(mkdtemp, 954[NO_MKDTEMP=], 955[NO_MKDTEMP=YesPlease]) 956AC_SUBST(NO_MKDTEMP) 957# 958# Define NO_MKSTEMPS if you don't have mkstemps in the C library. 959GIT_CHECK_FUNC(mkstemps, 960[NO_MKSTEMPS=], 961[NO_MKSTEMPS=YesPlease]) 962AC_SUBST(NO_MKSTEMPS) 963# 964# Define NO_INITGROUPS if you don't have initgroups in the C library. 965GIT_CHECK_FUNC(initgroups, 966[NO_INITGROUPS=], 967[NO_INITGROUPS=YesPlease]) 968AC_SUBST(NO_INITGROUPS) 969# 970# 971# Define NO_MMAP if you want to avoid mmap. 972# 973# Define NO_ICONV if your libc does not properly support iconv. 974 975 976## Other checks. 977# Define USE_PIC if you need the main git objects to be built with -fPIC 978# in order to build and link perl/Git.so. x86-64 seems to need this. 979# 980# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. 981# Enable it on Windows. By default, symrefs are still used. 982# 983# Define NO_PTHREADS if we do not have pthreads. 984# 985# Define PTHREAD_LIBS to the linker flag used for Pthread support. 986AC_DEFUN([PTHREADTEST_SRC], [ 987AC_LANG_PROGRAM([[ 988#include <pthread.h> 989]], [[ 990 pthread_mutex_t test_mutex; 991 pthread_key_t test_key; 992 int retcode = 0; 993 retcode |= pthread_key_create(&test_key, (void *)0); 994 retcode |= pthread_mutex_init(&test_mutex,(void *)0); 995 retcode |= pthread_mutex_lock(&test_mutex); 996 retcode |= pthread_mutex_unlock(&test_mutex); 997 return retcode; 998]])]) 9991000dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM(1001dnl [[#include <pthread.h>]],1002dnl [[pthread_mutex_t test_mutex;]]1003dnl )])10041005NO_PTHREADS=UnfortunatelyYes1006PTHREAD_LIBS=10071008if test -n "$USER_NOPTHREAD"; then1009 AC_MSG_NOTICE([Skipping POSIX Threads at user request.])1010# handle these separately since PTHREAD_CFLAGS could be '-lpthreads1011# -D_REENTRANT' or some such.1012elif test -z "$PTHREAD_CFLAGS"; then1013 threads_found=no1014 for opt in -mt -pthread -lpthread; do1015 old_CFLAGS="$CFLAGS"1016 CFLAGS="$opt $CFLAGS"1017 AC_MSG_CHECKING([Checking for POSIX Threads with '$opt'])1018 AC_LINK_IFELSE([PTHREADTEST_SRC],1019 [AC_MSG_RESULT([yes])1020 NO_PTHREADS=1021 PTHREAD_LIBS="$opt"1022 PTHREAD_CFLAGS="$opt"1023 threads_found=yes1024 break1025 ],1026 [AC_MSG_RESULT([no])])1027 CFLAGS="$old_CFLAGS"1028 done1029 if test $threads_found != yes; then1030 AC_CHECK_LIB([pthread], [pthread_create],1031 [PTHREAD_LIBS="-lpthread"],1032 [NO_PTHREADS=UnfortunatelyYes])1033 fi1034else1035 old_CFLAGS="$CFLAGS"1036 CFLAGS="$PTHREAD_CFLAGS $CFLAGS"1037 AC_MSG_CHECKING([Checking for POSIX Threads with '$PTHREAD_CFLAGS'])1038 AC_LINK_IFELSE([PTHREADTEST_SRC],1039 [AC_MSG_RESULT([yes])1040 NO_PTHREADS=1041 PTHREAD_LIBS="$PTHREAD_CFLAGS"1042 ],1043 [AC_MSG_RESULT([no])])10441045 CFLAGS="$old_CFLAGS"1046fi10471048CFLAGS="$old_CFLAGS"10491050AC_SUBST(PTHREAD_CFLAGS)1051AC_SUBST(PTHREAD_LIBS)1052AC_SUBST(NO_PTHREADS)10531054## Output files1055AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])1056AC_OUTPUT105710581059## Cleanup1060rm -f "${config_append}"