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# Cause the line "VAR=VAL" to be eventually appended to ${config_file}. 9AC_DEFUN([GIT_CONF_SUBST], 10[AC_REQUIRE([GIT_CONF_SUBST_INIT]) 11config_appended_defs="$config_appended_defs${newline}dnl 12$1=m4_if([$#],[1],[${$1}],[$2])"]) 13 14# GIT_CONF_SUBST_INIT 15# ------------------- 16# Prepare shell variables and autoconf machine required by later calls 17# to GIT_CONF_SUBST. 18AC_DEFUN([GIT_CONF_SUBST_INIT], 19 [config_appended_defs=; newline=' 20' 21 AC_CONFIG_COMMANDS([$config_file], 22 [echo "$config_appended_defs" >> "$config_file"], 23 [config_file=$config_file 24 config_appended_defs="$config_appended_defs"])]) 25 26# GIT_ARG_SET_PATH(PROGRAM) 27# ------------------------- 28# Provide --with-PROGRAM=PATH option to set PATH to PROGRAM 29# Optional second argument allows setting NO_PROGRAM=YesPlease if 30# --without-PROGRAM version used. 31AC_DEFUN([GIT_ARG_SET_PATH], 32 [AC_ARG_WITH([$1], 33 [AS_HELP_STRING([--with-$1=PATH], 34 [provide PATH to $1])], 35 [GIT_CONF_APPEND_PATH([$1], [$2])], 36 [])]) 37 38# GIT_CONF_APPEND_PATH(PROGRAM) 39# ----------------------------- 40# Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH 41# Used by GIT_ARG_SET_PATH(PROGRAM) 42# Optional second argument allows setting NO_PROGRAM=YesPlease if 43# --without-PROGRAM is used. 44AC_DEFUN([GIT_CONF_APPEND_PATH], 45 [m4_pushdef([GIT_UC_PROGRAM], m4_toupper([$1]))dnl 46 if test "$withval" = "no"; then 47 if test -n "$2"; then 48 GIT_UC_PROGRAM[]_PATH=$withval 49 AC_MSG_NOTICE([Disabling use of GIT_UC_PROGRAM]) 50 GIT_CONF_SUBST([NO_]GIT_UC_PROGRAM, [YesPlease]) 51 GIT_CONF_SUBST(GIT_UC_PROGRAM[]_PATH, []) 52 else 53 AC_MSG_ERROR([You cannot use git without $1]) 54 fi 55 else 56 if test "$withval" = "yes"; then 57 AC_MSG_WARN([You should provide path for --with-$1=PATH]) 58 else 59 GIT_UC_PROGRAM[]_PATH=$withval 60 AC_MSG_NOTICE([Setting GIT_UC_PROGRAM[]_PATH to $withval]) 61 GIT_CONF_SUBST(GIT_UC_PROGRAM[]_PATH, [$withval]) 62 fi 63 fi 64 m4_popdef([GIT_UC_PROGRAM])]) 65 66# GIT_PARSE_WITH(PACKAGE) 67# ----------------------- 68# For use in AC_ARG_WITH action-if-found, for packages default ON. 69# * Set NO_PACKAGE=YesPlease for --without-PACKAGE 70# * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH 71# * Unset NO_PACKAGE for --with-PACKAGE without ARG 72AC_DEFUN([GIT_PARSE_WITH], 73 [m4_pushdef([GIT_UC_PACKAGE], m4_toupper([$1]))dnl 74 if test "$withval" = "no"; then 75 NO_[]GIT_UC_PACKAGE=YesPlease 76 elif test "$withval" = "yes"; then 77 NO_[]GIT_UC_PACKAGE= 78 else 79 NO_[]GIT_UC_PACKAGE= 80 GIT_UC_PACKAGE[]DIR=$withval 81 AC_MSG_NOTICE([Setting GIT_UC_PACKAGE[]DIR to $withval]) 82 GIT_CONF_SUBST(GIT_UC_PACKAGE[DIR], [$withval]) 83 fi 84 m4_popdef([GIT_UC_PACKAGE])]) 85 86# GIT_PARSE_WITH_SET_MAKE_VAR(WITHNAME, VAR, HELP_TEXT) 87# ----------------------------------------------------- 88# Set VAR to the value specied by --with-WITHNAME. 89# No verification of arguments is performed, but warnings are issued 90# if either 'yes' or 'no' is specified. 91# HELP_TEXT is presented when --help is called. 92# This is a direct way to allow setting variables in the Makefile. 93AC_DEFUN([GIT_PARSE_WITH_SET_MAKE_VAR], 94[AC_ARG_WITH([$1], 95 [AS_HELP_STRING([--with-$1=VALUE], $3)], 96 if test -n "$withval"; then 97 if test "$withval" = "yes" -o "$withval" = "no"; then 98 AC_MSG_WARN([You likely do not want either 'yes' or 'no' as] 99 [a value for $1 ($2). Maybe you do...?]) 100 fi 101 AC_MSG_NOTICE([Setting $2 to $withval]) 102 GIT_CONF_SUBST([$2], [$withval]) 103 fi)])# GIT_PARSE_WITH_SET_MAKE_VAR 104 105# 106# GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE) 107# ----------------------------------------- 108# Similar to AC_CHECK_FUNC, but on systems that do not generate 109# warnings for missing prototypes (e.g. FreeBSD when compiling without 110# -Wall), it does not work. By looking for function definition in 111# libraries, this problem can be worked around. 112AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[ 113 AC_SEARCH_LIBS([$1],, 114 [$2],[$3]) 115],[$3])]) 116 117# 118# GIT_STASH_FLAGS(BASEPATH_VAR) 119# ----------------------------- 120# Allow for easy stashing of LDFLAGS and CPPFLAGS before running 121# tests that may want to take user settings into account. 122AC_DEFUN([GIT_STASH_FLAGS],[ 123if test -n "$1"; then 124 old_CPPFLAGS="$CPPFLAGS" 125 old_LDFLAGS="$LDFLAGS" 126 CPPFLAGS="-I$1/include $CPPFLAGS" 127 LDFLAGS="-L$1/$lib $LDFLAGS" 128fi 129]) 130 131dnl 132dnl GIT_UNSTASH_FLAGS(BASEPATH_VAR) 133dnl ----------------------------- 134dnl Restore the stashed *FLAGS values. 135AC_DEFUN([GIT_UNSTASH_FLAGS],[ 136if test -n "$1"; then 137 CPPFLAGS="$old_CPPFLAGS" 138 LDFLAGS="$old_LDFLAGS" 139fi 140]) 141 142## Configure body starts here. 143 144AC_PREREQ(2.59) 145AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org]) 146 147AC_CONFIG_SRCDIR([git.c]) 148 149config_file=config.mak.autogen 150config_in=config.mak.in 151 152GIT_CONF_SUBST([AUTOCONFIGURED], [YesPlease]) 153 154# Directories holding "saner" versions of common or POSIX binaries. 155AC_ARG_WITH([sane-tool-path], 156 [AS_HELP_STRING( 157 [--with-sane-tool-path=DIR-1[[:DIR-2...:DIR-n]]], 158 [Directories to prepend to PATH in build system and generated scripts])], 159 [if test "$withval" = "no"; then 160 withval='' 161 else 162 AC_MSG_NOTICE([Setting SANE_TOOL_PATH to '$withval']) 163 fi 164 GIT_CONF_SUBST([SANE_TOOL_PATH], [$withval])], 165 [# If the "--with-sane-tool-path" option was not given, don't touch 166 # SANE_TOOL_PATH here, but let defaults in Makefile take care of it. 167 # This should minimize spurious differences in the behaviour of the 168 # Git build system when configure is used w.r.t. when it is not. 169 :]) 170 171## Site configuration related to programs (before tests) 172## --with-PACKAGE[=ARG] and --without-PACKAGE 173# 174# Set lib to alternative name of lib directory (e.g. lib64) 175AC_ARG_WITH([lib], 176 [AS_HELP_STRING([--with-lib=ARG], 177 [ARG specifies alternative name for lib directory])], 178 [if test "$withval" = "no" || test "$withval" = "yes"; then 179 AC_MSG_WARN([You should provide name for --with-lib=ARG]) 180 else 181 lib=$withval 182 AC_MSG_NOTICE([Setting lib to '$lib']) 183 GIT_CONF_SUBST([lib]) 184 fi]) 185 186if test -z "$lib"; then 187 AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) 188 lib=lib 189fi 190 191AC_ARG_ENABLE([pthreads], 192 [AS_HELP_STRING([--enable-pthreads=FLAGS], 193 [FLAGS is the value to pass to the compiler to enable POSIX Threads.] 194 [The default if FLAGS is not specified is to try first -pthread] 195 [and then -lpthread.] 196 [--without-pthreads will disable threading.])], 197[ 198if test "x$enableval" = "xyes"; then 199 AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads]) 200elif test "x$enableval" != "xno"; then 201 PTHREAD_CFLAGS=$enableval 202 AC_MSG_NOTICE([Setting '$PTHREAD_CFLAGS' as the FLAGS to enable POSIX Threads]) 203else 204 AC_MSG_NOTICE([POSIX Threads will be disabled.]) 205 NO_PTHREADS=YesPlease 206 USER_NOPTHREAD=1 207fi], 208[ 209 AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads.]) 210]) 211 212# Define option to enable JavaScript minification 213AC_ARG_ENABLE([jsmin], 214[AS_HELP_STRING([--enable-jsmin=PATH], 215 [PATH is the name of a JavaScript minifier or the absolute path to one.])], 216[ 217 JSMIN=$enableval; 218 AC_MSG_NOTICE([Setting JSMIN to '$JSMIN' to enable JavaScript minifying]) 219 GIT_CONF_SUBST([JSMIN]) 220]) 221 222# Define option to enable CSS minification 223AC_ARG_ENABLE([cssmin], 224[AS_HELP_STRING([--enable-cssmin=PATH], 225 [PATH is the name of a CSS minifier or the absolute path to one.])], 226[ 227 CSSMIN=$enableval; 228 AC_MSG_NOTICE([Setting CSSMIN to '$CSSMIN' to enable CSS minifying]) 229 GIT_CONF_SUBST([CSSMIN]) 230]) 231 232## Site configuration (override autodetection) 233## --with-PACKAGE[=ARG] and --without-PACKAGE 234AC_MSG_NOTICE([CHECKS for site configuration]) 235# 236# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability 237# tests. These tests take up a significant amount of the total test time 238# but are not needed unless you plan to talk to SVN repos. 239# 240# Define PPC_SHA1 environment variable when running make to make use of 241# a bundled SHA1 routine optimized for PowerPC. 242# 243# Define NO_OPENSSL environment variable if you do not have OpenSSL. 244# This also implies BLK_SHA1. 245# 246# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in 247# /foo/bar/include and /foo/bar/lib directories. 248AC_ARG_WITH(openssl, 249AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) 250AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]), 251GIT_PARSE_WITH([openssl])) 252 253# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be 254# able to use Perl-compatible regular expressions. 255# 256# Define LIBPCREDIR=/foo/bar if your libpcre header and library files are in 257# /foo/bar/include and /foo/bar/lib directories. 258# 259AC_ARG_WITH(libpcre, 260AS_HELP_STRING([--with-libpcre],[support Perl-compatible regexes (default is NO)]) 261AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]), 262 if test "$withval" = "no"; then 263 USE_LIBPCRE= 264 elif test "$withval" = "yes"; then 265 USE_LIBPCRE=YesPlease 266 else 267 USE_LIBPCRE=YesPlease 268 LIBPCREDIR=$withval 269 AC_MSG_NOTICE([Setting LIBPCREDIR to $LIBPCREDIR]) 270 GIT_CONF_SUBST([LIBPCREDIR]) 271 fi) 272# 273# Define NO_CURL if you do not have curl installed. git-http-pull and 274# git-http-push are not built, and you cannot use http:// and https:// 275# transports. 276# 277# Define CURLDIR=/foo/bar if your curl header and library files are in 278# /foo/bar/include and /foo/bar/lib directories. 279AC_ARG_WITH(curl, 280AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) 281AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), 282GIT_PARSE_WITH(curl)) 283# 284# Define NO_EXPAT if you do not have expat installed. git-http-push is 285# not built, and you cannot push using http:// and https:// transports. 286# 287# Define EXPATDIR=/foo/bar if your expat header and library files are in 288# /foo/bar/include and /foo/bar/lib directories. 289AC_ARG_WITH(expat, 290AS_HELP_STRING([--with-expat], 291[support git-push using http:// and https:// transports via WebDAV (default is YES)]) 292AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), 293GIT_PARSE_WITH(expat)) 294# 295# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink 296# installed in /sw, but don't want GIT to link against any libraries 297# installed there. If defined you may specify your own (or Fink's) 298# include directories and library directories by defining CFLAGS 299# and LDFLAGS appropriately. 300# 301# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, 302# have DarwinPorts installed in /opt/local, but don't want GIT to 303# link against any libraries installed there. If defined you may 304# specify your own (or DarwinPort's) include directories and 305# library directories by defining CFLAGS and LDFLAGS appropriately. 306# 307# Define NO_MMAP if you want to avoid mmap. 308# 309# Define NO_ICONV if your libc does not properly support iconv. 310AC_ARG_WITH(iconv, 311AS_HELP_STRING([--without-iconv], 312[if your architecture doesn't properly support iconv]) 313AS_HELP_STRING([--with-iconv=PATH], 314[PATH is prefix for libiconv library and headers]) 315AS_HELP_STRING([], 316[used only if you need linking with libiconv]), 317GIT_PARSE_WITH(iconv)) 318 319## --enable-FEATURE[=ARG] and --disable-FEATURE 320# 321# Define USE_NSEC below if you want git to care about sub-second file mtimes 322# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and 323# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely 324# randomly break unless your underlying filesystem supports those sub-second 325# times (my ext3 doesn't). 326# 327# Define USE_STDEV below if you want git to care about the underlying device 328# change being considered an inode change from the update-index perspective. 329 330# 331# Allow user to set ETC_GITCONFIG variable 332GIT_PARSE_WITH_SET_MAKE_VAR(gitconfig, ETC_GITCONFIG, 333 Use VALUE instead of /etc/gitconfig as the 334 global git configuration file. 335 If VALUE is not fully qualified it will be interpreted 336 as a path relative to the computed prefix at runtime.) 337 338# 339# Allow user to set ETC_GITATTRIBUTES variable 340GIT_PARSE_WITH_SET_MAKE_VAR(gitattributes, ETC_GITATTRIBUTES, 341 Use VALUE instead of /etc/gitattributes as the 342 global git attributes file. 343 If VALUE is not fully qualified it will be interpreted 344 as a path relative to the computed prefix at runtime.) 345 346# 347# Allow user to set the default pager 348GIT_PARSE_WITH_SET_MAKE_VAR(pager, DEFAULT_PAGER, 349 Use VALUE as the fall-back pager instead of 'less'. 350 This is used by things like 'git log' when the user 351 does not specify a pager to use through alternate 352 methods. eg: /usr/bin/pager) 353# 354# Allow user to set the default editor 355GIT_PARSE_WITH_SET_MAKE_VAR(editor, DEFAULT_EDITOR, 356 Use VALUE as the fall-back editor instead of 'vi'. 357 This is used by things like 'git commit' when the user 358 does not specify a preferred editor through other 359 methods. eg: /usr/bin/editor) 360 361# 362# Define SHELL_PATH to provide path to shell. 363GIT_ARG_SET_PATH(shell) 364# 365# Define PERL_PATH to provide path to Perl. 366GIT_ARG_SET_PATH(perl) 367# 368# Define PYTHON_PATH to provide path to Python. 369GIT_ARG_SET_PATH(python, allow-without) 370# 371# Define ZLIB_PATH to provide path to zlib. 372GIT_ARG_SET_PATH(zlib) 373# 374# Declare the with-tcltk/without-tcltk options. 375AC_ARG_WITH(tcltk, 376AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)]) 377AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.]) 378AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if]) 379AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]), 380GIT_PARSE_WITH(tcltk)) 381# 382 383 384## Checks for programs. 385AC_MSG_NOTICE([CHECKS for programs]) 386# 387AC_PROG_CC([cc gcc]) 388AC_C_INLINE 389case $ac_cv_c_inline in 390 inline | yes | no) ;; 391 *) AC_SUBST([INLINE], [$ac_cv_c_inline]) ;; 392esac 393 394# which switch to pass runtime path to dynamic libraries to the linker 395AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [ 396 SAVE_LDFLAGS="${LDFLAGS}" 397 LDFLAGS="${SAVE_LDFLAGS} -R /" 398 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no]) 399 LDFLAGS="${SAVE_LDFLAGS}" 400]) 401if test "$git_cv_ld_dashr" = "yes"; then 402 AC_SUBST(CC_LD_DYNPATH, [-R]) 403else 404 AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [ 405 SAVE_LDFLAGS="${LDFLAGS}" 406 LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/" 407 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no]) 408 LDFLAGS="${SAVE_LDFLAGS}" 409 ]) 410 if test "$git_cv_ld_wl_rpath" = "yes"; then 411 AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,]) 412 else 413 AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [ 414 SAVE_LDFLAGS="${LDFLAGS}" 415 LDFLAGS="${SAVE_LDFLAGS} -rpath /" 416 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no]) 417 LDFLAGS="${SAVE_LDFLAGS}" 418 ]) 419 if test "$git_cv_ld_rpath" = "yes"; then 420 AC_SUBST(CC_LD_DYNPATH, [-rpath]) 421 else 422 AC_MSG_WARN([linker does not support runtime path to dynamic libraries]) 423 fi 424 fi 425fi 426#AC_PROG_INSTALL # needs install-sh or install.sh in sources 427AC_CHECK_TOOLS(AR, [gar ar], :) 428AC_CHECK_PROGS(TAR, [gtar tar]) 429AC_CHECK_PROGS(DIFF, [gnudiff gdiff diff]) 430# TCLTK_PATH will be set to some value if we want Tcl/Tk 431# or will be empty otherwise. 432if test -z "$NO_TCLTK"; then 433 if test "$with_tcltk" = ""; then 434 # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'. 435 TCLTK_PATH=wish 436 AC_SUBST(TCLTK_PATH) 437 elif test "$with_tcltk" = "yes"; then 438 # Tcl/Tk check requested. 439 AC_CHECK_PROGS(TCLTK_PATH, [wish], ) 440 else 441 AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk]) 442 TCLTK_PATH="$with_tcltk" 443 AC_SUBST(TCLTK_PATH) 444 fi 445fi 446AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) 447if test -n "$ASCIIDOC"; then 448 AC_MSG_CHECKING([for asciidoc version]) 449 asciidoc_version=`$ASCIIDOC --version 2>/dev/null` 450 case "${asciidoc_version}" in 451 asciidoc' '8*) 452 AC_MSG_RESULT([${asciidoc_version}]) 453 ;; 454 *) 455 AC_MSG_RESULT([${asciidoc_version} (unknown)]) 456 ;; 457 esac 458fi 459 460 461## Checks for libraries. 462AC_MSG_NOTICE([CHECKS for libraries]) 463# 464# Define NO_OPENSSL environment variable if you do not have OpenSSL. 465# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). 466 467GIT_STASH_FLAGS($OPENSSLDIR) 468 469AC_CHECK_LIB([crypto], [SHA1_Init], 470[NEEDS_SSL_WITH_CRYPTO=], 471[AC_CHECK_LIB([ssl], [SHA1_Init], 472 [NEEDS_SSL_WITH_CRYPTO=YesPlease], 473 [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])]) 474 475GIT_UNSTASH_FLAGS($OPENSSLDIR) 476 477AC_SUBST(NEEDS_SSL_WITH_CRYPTO) 478AC_SUBST(NO_OPENSSL) 479 480# 481# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be 482# able to use Perl-compatible regular expressions. 483# 484 485if test -n "$USE_LIBPCRE"; then 486 487GIT_STASH_FLAGS($LIBPCREDIR) 488 489AC_CHECK_LIB([pcre], [pcre_version], 490[USE_LIBPCRE=YesPlease], 491[USE_LIBPCRE=]) 492 493GIT_UNSTASH_FLAGS($LIBPCREDIR) 494 495AC_SUBST(USE_LIBPCRE) 496 497fi 498 499# 500# Define NO_CURL if you do not have libcurl installed. git-http-pull and 501# git-http-push are not built, and you cannot use http:// and https:// 502# transports. 503 504GIT_STASH_FLAGS($CURLDIR) 505 506AC_CHECK_LIB([curl], [curl_global_init], 507[NO_CURL=], 508[NO_CURL=YesPlease]) 509 510GIT_UNSTASH_FLAGS($CURLDIR) 511 512AC_SUBST(NO_CURL) 513 514# 515# Define NO_EXPAT if you do not have expat installed. git-http-push is 516# not built, and you cannot push using http:// and https:// transports. 517 518GIT_STASH_FLAGS($EXPATDIR) 519 520AC_CHECK_LIB([expat], [XML_ParserCreate], 521[NO_EXPAT=], 522[NO_EXPAT=YesPlease]) 523 524GIT_UNSTASH_FLAGS($EXPATDIR) 525 526AC_SUBST(NO_EXPAT) 527 528# 529# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and 530# some Solaris installations). 531# Define NO_ICONV if neither libc nor libiconv support iconv. 532 533if test -z "$NO_ICONV"; then 534 535GIT_STASH_FLAGS($ICONVDIR) 536 537AC_DEFUN([ICONVTEST_SRC], 538[AC_LANG_PROGRAM([#include <iconv.h>], 539 [iconv_open("", "");])]) 540 541if test -n "$ICONVDIR"; then 542 lib_order="-liconv -lc" 543else 544 lib_order="-lc -liconv" 545fi 546 547NO_ICONV=YesPlease 548 549for l in $lib_order; do 550 if test "$l" = "-liconv"; then 551 NEEDS_LIBICONV=YesPlease 552 else 553 NEEDS_LIBICONV= 554 fi 555 556 old_LIBS="$LIBS" 557 LIBS="$LIBS $l" 558 AC_MSG_CHECKING([for iconv in $l]) 559 AC_LINK_IFELSE([ICONVTEST_SRC], 560 [AC_MSG_RESULT([yes]) 561 NO_ICONV= 562 break], 563 [AC_MSG_RESULT([no])]) 564 LIBS="$old_LIBS" 565done 566 567#in case of break 568LIBS="$old_LIBS" 569 570GIT_UNSTASH_FLAGS($ICONVDIR) 571 572AC_SUBST(NEEDS_LIBICONV) 573AC_SUBST(NO_ICONV) 574 575if test -n "$NO_ICONV"; then 576 NEEDS_LIBICONV= 577fi 578 579fi 580 581# 582# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. 583 584GIT_STASH_FLAGS($ZLIB_PATH) 585 586AC_DEFUN([ZLIBTEST_SRC], [ 587AC_LANG_PROGRAM([#include <zlib.h>], 588 [deflateBound(0, 0);])]) 589AC_MSG_CHECKING([for deflateBound in -lz]) 590old_LIBS="$LIBS" 591LIBS="$LIBS -lz" 592AC_LINK_IFELSE([ZLIBTEST_SRC], 593 [AC_MSG_RESULT([yes])], 594 [AC_MSG_RESULT([no]) 595 NO_DEFLATE_BOUND=yes]) 596LIBS="$old_LIBS" 597 598GIT_UNSTASH_FLAGS($ZLIB_PATH) 599 600AC_SUBST(NO_DEFLATE_BOUND) 601 602# 603# Define NEEDS_SOCKET if linking with libc is not enough (SunOS, 604# Patrick Mauritz). 605AC_CHECK_LIB([c], [socket], 606[NEEDS_SOCKET=], 607[NEEDS_SOCKET=YesPlease]) 608AC_SUBST(NEEDS_SOCKET) 609test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" 610 611# 612# The next few tests will define NEEDS_RESOLV if linking with 613# libresolv provides some of the functions we would normally get 614# from libc. 615NEEDS_RESOLV= 616AC_SUBST(NEEDS_RESOLV) 617# 618# Define NO_INET_NTOP if linking with -lresolv is not enough. 619# Solaris 2.7 in particular hos inet_ntop in -lresolv. 620NO_INET_NTOP= 621AC_SUBST(NO_INET_NTOP) 622AC_CHECK_FUNC([inet_ntop], 623 [], 624 [AC_CHECK_LIB([resolv], [inet_ntop], 625 [NEEDS_RESOLV=YesPlease], 626 [NO_INET_NTOP=YesPlease]) 627]) 628# 629# Define NO_INET_PTON if linking with -lresolv is not enough. 630# Solaris 2.7 in particular hos inet_pton in -lresolv. 631NO_INET_PTON= 632AC_SUBST(NO_INET_PTON) 633AC_CHECK_FUNC([inet_pton], 634 [], 635 [AC_CHECK_LIB([resolv], [inet_pton], 636 [NEEDS_RESOLV=YesPlease], 637 [NO_INET_PTON=YesPlease]) 638]) 639# 640# Define NO_HSTRERROR if linking with -lresolv is not enough. 641# Solaris 2.6 in particular has no hstrerror, even in -lresolv. 642NO_HSTRERROR= 643AC_CHECK_FUNC([hstrerror], 644 [], 645 [AC_CHECK_LIB([resolv], [hstrerror], 646 [NEEDS_RESOLV=YesPlease], 647 [NO_HSTRERROR=YesPlease]) 648]) 649AC_SUBST(NO_HSTRERROR) 650# 651# If any of the above tests determined that -lresolv is needed at 652# build-time, also set it here for remaining configure-time checks. 653test -n "$NEEDS_RESOLV" && LIBS="$LIBS -lresolv" 654 655AC_CHECK_LIB([c], [basename], 656[NEEDS_LIBGEN=], 657[NEEDS_LIBGEN=YesPlease]) 658AC_SUBST(NEEDS_LIBGEN) 659test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen" 660 661AC_CHECK_LIB([c], [gettext], 662[LIBC_CONTAINS_LIBINTL=YesPlease], 663[LIBC_CONTAINS_LIBINTL=]) 664AC_SUBST(LIBC_CONTAINS_LIBINTL) 665 666# 667# Define NO_GETTEXT if you don't want Git output to be translated. 668# A translated Git requires GNU libintl or another gettext implementation 669AC_CHECK_HEADER([libintl.h], 670[NO_GETTEXT=], 671[NO_GETTEXT=YesPlease]) 672AC_SUBST(NO_GETTEXT) 673 674if test -z "$NO_GETTEXT"; then 675 test -n "$LIBC_CONTAINS_LIBINTL" || LIBS="$LIBS -lintl" 676fi 677 678## Checks for header files. 679AC_MSG_NOTICE([CHECKS for header files]) 680# 681# Define NO_SYS_SELECT_H if you don't have sys/select.h. 682AC_CHECK_HEADER([sys/select.h], 683[NO_SYS_SELECT_H=], 684[NO_SYS_SELECT_H=UnfortunatelyYes]) 685AC_SUBST(NO_SYS_SELECT_H) 686# 687# Define NO_SYS_POLL_H if you don't have sys/poll.h 688AC_CHECK_HEADER([sys/poll.h], 689[NO_SYS_POLL_H=], 690[NO_SYS_POLL_H=UnfortunatelyYes]) 691AC_SUBST(NO_SYS_POLL_H) 692# 693# Define NO_INTTYPES_H if you don't have inttypes.h 694AC_CHECK_HEADER([inttypes.h], 695[NO_INTTYPES_H=], 696[NO_INTTYPES_H=UnfortunatelyYes]) 697AC_SUBST(NO_INTTYPES_H) 698# 699# Define OLD_ICONV if your library has an old iconv(), where the second 700# (input buffer pointer) parameter is declared with type (const char **). 701AC_DEFUN([OLDICONVTEST_SRC], [ 702AC_LANG_PROGRAM([[ 703#include <iconv.h> 704 705extern size_t iconv(iconv_t cd, 706 char **inbuf, size_t *inbytesleft, 707 char **outbuf, size_t *outbytesleft); 708]], [])]) 709 710GIT_STASH_FLAGS($ICONVDIR) 711 712AC_MSG_CHECKING([for old iconv()]) 713AC_COMPILE_IFELSE([OLDICONVTEST_SRC], 714 [AC_MSG_RESULT([no])], 715 [AC_MSG_RESULT([yes]) 716 OLD_ICONV=UnfortunatelyYes]) 717 718GIT_UNSTASH_FLAGS($ICONVDIR) 719 720AC_SUBST(OLD_ICONV) 721 722## Checks for typedefs, structures, and compiler characteristics. 723AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) 724# 725TYPE_SOCKLEN_T 726case $ac_cv_type_socklen_t in 727 yes) ;; 728 *) AC_SUBST([SOCKLEN_T], [$git_cv_socklen_t_equiv]) ;; 729esac 730 731# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. 732AC_CHECK_MEMBER(struct dirent.d_ino, 733[NO_D_INO_IN_DIRENT=], 734[NO_D_INO_IN_DIRENT=YesPlease], 735[#include <dirent.h>]) 736AC_SUBST(NO_D_INO_IN_DIRENT) 737# 738# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks 739# d_type in struct dirent (latest Cygwin -- will be fixed soonish). 740AC_CHECK_MEMBER(struct dirent.d_type, 741[NO_D_TYPE_IN_DIRENT=], 742[NO_D_TYPE_IN_DIRENT=YesPlease], 743[#include <dirent.h>]) 744AC_SUBST(NO_D_TYPE_IN_DIRENT) 745# 746# Define NO_SOCKADDR_STORAGE if your platform does not have struct 747# sockaddr_storage. 748AC_CHECK_TYPE(struct sockaddr_storage, 749[NO_SOCKADDR_STORAGE=], 750[NO_SOCKADDR_STORAGE=YesPlease],[ 751#include <sys/types.h> 752#include <sys/socket.h> 753]) 754AC_SUBST(NO_SOCKADDR_STORAGE) 755# 756# Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). 757AC_CHECK_TYPE([struct addrinfo],[ 758 GIT_CHECK_FUNC([getaddrinfo], 759 [NO_IPV6=], 760 [NO_IPV6=YesPlease]) 761],[NO_IPV6=YesPlease],[ 762#include <sys/types.h> 763#include <sys/socket.h> 764#include <netdb.h> 765]) 766AC_SUBST(NO_IPV6) 767# 768# Define NO_REGEX if you have no or inferior regex support in your C library. 769AC_CACHE_CHECK([whether the platform regex can handle null bytes], 770 [ac_cv_c_excellent_regex], [ 771AC_EGREP_CPP(yippeeyeswehaveit, 772 AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 773#include <regex.h> 774], 775[#ifdef REG_STARTEND 776yippeeyeswehaveit 777#endif 778]), 779 [ac_cv_c_excellent_regex=yes], 780 [ac_cv_c_excellent_regex=no]) 781]) 782if test $ac_cv_c_excellent_regex = yes; then 783 NO_REGEX= 784else 785 NO_REGEX=YesPlease 786fi 787AC_SUBST(NO_REGEX) 788# 789# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds 790# when attempting to read from an fopen'ed directory. 791AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], 792 [ac_cv_fread_reads_directories], 793[ 794AC_RUN_IFELSE( 795 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 796 [[char c; 797 FILE *f = fopen(".", "r"); 798 return f && fread(&c, 1, 1, f)]])], 799 [ac_cv_fread_reads_directories=no], 800 [ac_cv_fread_reads_directories=yes]) 801]) 802if test $ac_cv_fread_reads_directories = yes; then 803 FREAD_READS_DIRECTORIES=UnfortunatelyYes 804else 805 FREAD_READS_DIRECTORIES= 806fi 807AC_SUBST(FREAD_READS_DIRECTORIES) 808# 809# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() 810# or vsnprintf() return -1 instead of number of characters which would 811# have been written to the final string if enough space had been available. 812AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], 813 [ac_cv_snprintf_returns_bogus], 814[ 815AC_RUN_IFELSE( 816 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 817 #include "stdarg.h" 818 819 int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) 820 { 821 int ret; 822 va_list ap; 823 va_start(ap, format); 824 ret = vsnprintf(str, maxsize, format, ap); 825 va_end(ap); 826 return ret; 827 }], 828 [[char buf[6]; 829 if (test_vsnprintf(buf, 3, "%s", "12345") != 5 830 || strcmp(buf, "12")) return 1; 831 if (snprintf(buf, 3, "%s", "12345") != 5 832 || strcmp(buf, "12")) return 1]])], 833 [ac_cv_snprintf_returns_bogus=no], 834 [ac_cv_snprintf_returns_bogus=yes]) 835]) 836if test $ac_cv_snprintf_returns_bogus = yes; then 837 SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes 838else 839 SNPRINTF_RETURNS_BOGUS= 840fi 841AC_SUBST(SNPRINTF_RETURNS_BOGUS) 842 843 844## Checks for library functions. 845## (in default C library and libraries checked by AC_CHECK_LIB) 846AC_MSG_NOTICE([CHECKS for library functions]) 847# 848# Define NO_LIBGEN_H if you don't have libgen.h. 849AC_CHECK_HEADER([libgen.h], 850[NO_LIBGEN_H=], 851[NO_LIBGEN_H=YesPlease]) 852AC_SUBST(NO_LIBGEN_H) 853# 854# Define HAVE_PATHS_H if you have paths.h. 855AC_CHECK_HEADER([paths.h], 856[HAVE_PATHS_H=YesPlease], 857[HAVE_PATHS_H=]) 858AC_SUBST(HAVE_PATHS_H) 859# 860# Define HAVE_LIBCHARSET_H if have libcharset.h 861AC_CHECK_HEADER([libcharset.h], 862[HAVE_LIBCHARSET_H=YesPlease], 863[HAVE_LIBCHARSET_H=]) 864AC_SUBST(HAVE_LIBCHARSET_H) 865# Define CHARSET_LIB if libiconv does not export the locale_charset symbol 866# and libcharset does 867CHARSET_LIB= 868AC_CHECK_LIB([iconv], [locale_charset], 869 [], 870 [AC_CHECK_LIB([charset], [locale_charset], 871 [CHARSET_LIB=-lcharset]) 872 ] 873) 874AC_SUBST(CHARSET_LIB) 875# 876# Define NO_STRCASESTR if you don't have strcasestr. 877GIT_CHECK_FUNC(strcasestr, 878[NO_STRCASESTR=], 879[NO_STRCASESTR=YesPlease]) 880AC_SUBST(NO_STRCASESTR) 881# 882# Define NO_STRTOK_R if you don't have strtok_r 883GIT_CHECK_FUNC(strtok_r, 884[NO_STRTOK_R=], 885[NO_STRTOK_R=YesPlease]) 886AC_SUBST(NO_STRTOK_R) 887# 888# Define NO_FNMATCH if you don't have fnmatch 889GIT_CHECK_FUNC(fnmatch, 890[NO_FNMATCH=], 891[NO_FNMATCH=YesPlease]) 892AC_SUBST(NO_FNMATCH) 893# 894# Define NO_FNMATCH_CASEFOLD if your fnmatch function doesn't have the 895# FNM_CASEFOLD GNU extension. 896AC_CACHE_CHECK([whether the fnmatch function supports the FNMATCH_CASEFOLD GNU extension], 897 [ac_cv_c_excellent_fnmatch], [ 898AC_EGREP_CPP(yippeeyeswehaveit, 899 AC_LANG_PROGRAM([ 900#include <fnmatch.h> 901], 902[#ifdef FNM_CASEFOLD 903yippeeyeswehaveit 904#endif 905]), 906 [ac_cv_c_excellent_fnmatch=yes], 907 [ac_cv_c_excellent_fnmatch=no]) 908]) 909if test $ac_cv_c_excellent_fnmatch = yes; then 910 NO_FNMATCH_CASEFOLD= 911else 912 NO_FNMATCH_CASEFOLD=YesPlease 913fi 914AC_SUBST(NO_FNMATCH_CASEFOLD) 915# 916# Define NO_MEMMEM if you don't have memmem. 917GIT_CHECK_FUNC(memmem, 918[NO_MEMMEM=], 919[NO_MEMMEM=YesPlease]) 920AC_SUBST(NO_MEMMEM) 921# 922# Define NO_STRLCPY if you don't have strlcpy. 923GIT_CHECK_FUNC(strlcpy, 924[NO_STRLCPY=], 925[NO_STRLCPY=YesPlease]) 926AC_SUBST(NO_STRLCPY) 927# 928# Define NO_UINTMAX_T if your platform does not have uintmax_t 929AC_CHECK_TYPE(uintmax_t, 930[NO_UINTMAX_T=], 931[NO_UINTMAX_T=YesPlease],[ 932#include <inttypes.h> 933]) 934AC_SUBST(NO_UINTMAX_T) 935# 936# Define NO_STRTOUMAX if you don't have strtoumax in the C library. 937GIT_CHECK_FUNC(strtoumax, 938[NO_STRTOUMAX=], 939[NO_STRTOUMAX=YesPlease]) 940AC_SUBST(NO_STRTOUMAX) 941# 942# Define NO_SETENV if you don't have setenv in the C library. 943GIT_CHECK_FUNC(setenv, 944[NO_SETENV=], 945[NO_SETENV=YesPlease]) 946AC_SUBST(NO_SETENV) 947# 948# Define NO_UNSETENV if you don't have unsetenv in the C library. 949GIT_CHECK_FUNC(unsetenv, 950[NO_UNSETENV=], 951[NO_UNSETENV=YesPlease]) 952AC_SUBST(NO_UNSETENV) 953# 954# Define NO_MKDTEMP if you don't have mkdtemp in the C library. 955GIT_CHECK_FUNC(mkdtemp, 956[NO_MKDTEMP=], 957[NO_MKDTEMP=YesPlease]) 958AC_SUBST(NO_MKDTEMP) 959# 960# Define NO_MKSTEMPS if you don't have mkstemps in the C library. 961GIT_CHECK_FUNC(mkstemps, 962[NO_MKSTEMPS=], 963[NO_MKSTEMPS=YesPlease]) 964AC_SUBST(NO_MKSTEMPS) 965# 966# Define NO_INITGROUPS if you don't have initgroups in the C library. 967GIT_CHECK_FUNC(initgroups, 968[NO_INITGROUPS=], 969[NO_INITGROUPS=YesPlease]) 970AC_SUBST(NO_INITGROUPS) 971# 972# 973# Define NO_MMAP if you want to avoid mmap. 974# 975# Define NO_ICONV if your libc does not properly support iconv. 976 977 978## Other checks. 979# Define USE_PIC if you need the main git objects to be built with -fPIC 980# in order to build and link perl/Git.so. x86-64 seems to need this. 981# 982# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. 983# Enable it on Windows. By default, symrefs are still used. 984# 985# Define NO_PTHREADS if we do not have pthreads. 986# 987# Define PTHREAD_LIBS to the linker flag used for Pthread support. 988AC_DEFUN([PTHREADTEST_SRC], [ 989AC_LANG_PROGRAM([[ 990#include <pthread.h> 991]], [[ 992 pthread_mutex_t test_mutex; 993 pthread_key_t test_key; 994 int retcode = 0; 995 retcode |= pthread_key_create(&test_key, (void *)0); 996 retcode |= pthread_mutex_init(&test_mutex,(void *)0); 997 retcode |= pthread_mutex_lock(&test_mutex); 998 retcode |= pthread_mutex_unlock(&test_mutex); 999 return retcode;1000]])])10011002dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM(1003dnl [[#include <pthread.h>]],1004dnl [[pthread_mutex_t test_mutex;]]1005dnl )])10061007NO_PTHREADS=UnfortunatelyYes1008PTHREAD_LIBS=10091010if test -n "$USER_NOPTHREAD"; then1011 AC_MSG_NOTICE([Skipping POSIX Threads at user request.])1012# handle these separately since PTHREAD_CFLAGS could be '-lpthreads1013# -D_REENTRANT' or some such.1014elif test -z "$PTHREAD_CFLAGS"; then1015 threads_found=no1016 for opt in -mt -pthread -lpthread; do1017 old_CFLAGS="$CFLAGS"1018 CFLAGS="$opt $CFLAGS"1019 AC_MSG_CHECKING([Checking for POSIX Threads with '$opt'])1020 AC_LINK_IFELSE([PTHREADTEST_SRC],1021 [AC_MSG_RESULT([yes])1022 NO_PTHREADS=1023 PTHREAD_LIBS="$opt"1024 PTHREAD_CFLAGS="$opt"1025 threads_found=yes1026 break1027 ],1028 [AC_MSG_RESULT([no])])1029 CFLAGS="$old_CFLAGS"1030 done1031 if test $threads_found != yes; then1032 AC_CHECK_LIB([pthread], [pthread_create],1033 [PTHREAD_LIBS="-lpthread"],1034 [NO_PTHREADS=UnfortunatelyYes])1035 fi1036else1037 old_CFLAGS="$CFLAGS"1038 CFLAGS="$PTHREAD_CFLAGS $CFLAGS"1039 AC_MSG_CHECKING([Checking for POSIX Threads with '$PTHREAD_CFLAGS'])1040 AC_LINK_IFELSE([PTHREADTEST_SRC],1041 [AC_MSG_RESULT([yes])1042 NO_PTHREADS=1043 PTHREAD_LIBS="$PTHREAD_CFLAGS"1044 ],1045 [AC_MSG_RESULT([no])])10461047 CFLAGS="$old_CFLAGS"1048fi10491050CFLAGS="$old_CFLAGS"10511052AC_SUBST(PTHREAD_CFLAGS)1053AC_SUBST(PTHREAD_LIBS)1054AC_SUBST(NO_PTHREADS)10551056## Output files1057AC_CONFIG_FILES(["${config_file}":"${config_in}"])1058AC_OUTPUT