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 dnl USE_LIBPCRE can still be modified below, so don't substitute 271 dnl it yet. 272 GIT_CONF_SUBST([LIBPCREDIR]) 273 fi) 274# 275# Define NO_CURL if you do not have curl installed. git-http-pull and 276# git-http-push are not built, and you cannot use http:// and https:// 277# transports. 278# 279# Define CURLDIR=/foo/bar if your curl header and library files are in 280# /foo/bar/include and /foo/bar/lib directories. 281AC_ARG_WITH(curl, 282AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) 283AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), 284GIT_PARSE_WITH(curl)) 285# 286# Define NO_EXPAT if you do not have expat installed. git-http-push is 287# not built, and you cannot push using http:// and https:// transports. 288# 289# Define EXPATDIR=/foo/bar if your expat header and library files are in 290# /foo/bar/include and /foo/bar/lib directories. 291AC_ARG_WITH(expat, 292AS_HELP_STRING([--with-expat], 293[support git-push using http:// and https:// transports via WebDAV (default is YES)]) 294AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), 295GIT_PARSE_WITH(expat)) 296# 297# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink 298# installed in /sw, but don't want GIT to link against any libraries 299# installed there. If defined you may specify your own (or Fink's) 300# include directories and library directories by defining CFLAGS 301# and LDFLAGS appropriately. 302# 303# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, 304# have DarwinPorts installed in /opt/local, but don't want GIT to 305# link against any libraries installed there. If defined you may 306# specify your own (or DarwinPort's) include directories and 307# library directories by defining CFLAGS and LDFLAGS appropriately. 308# 309# Define NO_MMAP if you want to avoid mmap. 310# 311# Define NO_ICONV if your libc does not properly support iconv. 312AC_ARG_WITH(iconv, 313AS_HELP_STRING([--without-iconv], 314[if your architecture doesn't properly support iconv]) 315AS_HELP_STRING([--with-iconv=PATH], 316[PATH is prefix for libiconv library and headers]) 317AS_HELP_STRING([], 318[used only if you need linking with libiconv]), 319GIT_PARSE_WITH(iconv)) 320 321## --enable-FEATURE[=ARG] and --disable-FEATURE 322# 323# Define USE_NSEC below if you want git to care about sub-second file mtimes 324# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and 325# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely 326# randomly break unless your underlying filesystem supports those sub-second 327# times (my ext3 doesn't). 328# 329# Define USE_STDEV below if you want git to care about the underlying device 330# change being considered an inode change from the update-index perspective. 331 332# 333# Allow user to set ETC_GITCONFIG variable 334GIT_PARSE_WITH_SET_MAKE_VAR(gitconfig, ETC_GITCONFIG, 335 Use VALUE instead of /etc/gitconfig as the 336 global git configuration file. 337 If VALUE is not fully qualified it will be interpreted 338 as a path relative to the computed prefix at runtime.) 339 340# 341# Allow user to set ETC_GITATTRIBUTES variable 342GIT_PARSE_WITH_SET_MAKE_VAR(gitattributes, ETC_GITATTRIBUTES, 343 Use VALUE instead of /etc/gitattributes as the 344 global git attributes file. 345 If VALUE is not fully qualified it will be interpreted 346 as a path relative to the computed prefix at runtime.) 347 348# 349# Allow user to set the default pager 350GIT_PARSE_WITH_SET_MAKE_VAR(pager, DEFAULT_PAGER, 351 Use VALUE as the fall-back pager instead of 'less'. 352 This is used by things like 'git log' when the user 353 does not specify a pager to use through alternate 354 methods. eg: /usr/bin/pager) 355# 356# Allow user to set the default editor 357GIT_PARSE_WITH_SET_MAKE_VAR(editor, DEFAULT_EDITOR, 358 Use VALUE as the fall-back editor instead of 'vi'. 359 This is used by things like 'git commit' when the user 360 does not specify a preferred editor through other 361 methods. eg: /usr/bin/editor) 362 363# 364# Define SHELL_PATH to provide path to shell. 365GIT_ARG_SET_PATH(shell) 366# 367# Define PERL_PATH to provide path to Perl. 368GIT_ARG_SET_PATH(perl) 369# 370# Define PYTHON_PATH to provide path to Python. 371GIT_ARG_SET_PATH(python, allow-without) 372# 373# Define ZLIB_PATH to provide path to zlib. 374GIT_ARG_SET_PATH(zlib) 375# 376# Declare the with-tcltk/without-tcltk options. 377AC_ARG_WITH(tcltk, 378AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)]) 379AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.]) 380AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if]) 381AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]), 382GIT_PARSE_WITH(tcltk)) 383# 384 385 386## Checks for programs. 387AC_MSG_NOTICE([CHECKS for programs]) 388# 389AC_PROG_CC([cc gcc]) 390AC_C_INLINE 391case $ac_cv_c_inline in 392 inline | yes | no) INLINE='';; 393 *) INLINE=$ac_cv_c_inline ;; 394esac 395GIT_CONF_SUBST([INLINE]) 396 397# which switch to pass runtime path to dynamic libraries to the linker 398AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [ 399 SAVE_LDFLAGS="${LDFLAGS}" 400 LDFLAGS="${SAVE_LDFLAGS} -R /" 401 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no]) 402 LDFLAGS="${SAVE_LDFLAGS}" 403]) 404if test "$git_cv_ld_dashr" = "yes"; then 405 CC_LD_DYNPATH=-R 406else 407 AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [ 408 SAVE_LDFLAGS="${LDFLAGS}" 409 LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/" 410 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no]) 411 LDFLAGS="${SAVE_LDFLAGS}" 412 ]) 413 if test "$git_cv_ld_wl_rpath" = "yes"; then 414 CC_LD_DYNPATH=-Wl,-rpath, 415 else 416 AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [ 417 SAVE_LDFLAGS="${LDFLAGS}" 418 LDFLAGS="${SAVE_LDFLAGS} -rpath /" 419 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no]) 420 LDFLAGS="${SAVE_LDFLAGS}" 421 ]) 422 if test "$git_cv_ld_rpath" = "yes"; then 423 CC_LD_DYNPATH=-rpath 424 else 425 CC_LD_DYNPATH= 426 AC_MSG_WARN([linker does not support runtime path to dynamic libraries]) 427 fi 428 fi 429fi 430GIT_CONF_SUBST([CC_LD_DYNPATH]) 431#AC_PROG_INSTALL # needs install-sh or install.sh in sources 432AC_CHECK_TOOLS(AR, [gar ar], :) 433AC_CHECK_PROGS(TAR, [gtar tar]) 434AC_CHECK_PROGS(DIFF, [gnudiff gdiff diff]) 435# TCLTK_PATH will be set to some value if we want Tcl/Tk 436# or will be empty otherwise. 437if test -n "$NO_TCLTK"; then 438 TCLTK_PATH= 439else 440 if test "$with_tcltk" = ""; then 441 # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'. 442 TCLTK_PATH=wish 443 elif test "$with_tcltk" = "yes"; then 444 # Tcl/Tk check requested. 445 AC_CHECK_PROGS(TCLTK_PATH, [wish], ) 446 else 447 AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk]) 448 TCLTK_PATH="$with_tcltk" 449 fi 450fi 451GIT_CONF_SUBST([TCLTK_PATH]) 452AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) 453if test -n "$ASCIIDOC"; then 454 AC_MSG_CHECKING([for asciidoc version]) 455 asciidoc_version=`$ASCIIDOC --version 2>/dev/null` 456 case "${asciidoc_version}" in 457 asciidoc' '8*) 458 AC_MSG_RESULT([${asciidoc_version}]) 459 ;; 460 *) 461 AC_MSG_RESULT([${asciidoc_version} (unknown)]) 462 ;; 463 esac 464fi 465 466 467## Checks for libraries. 468AC_MSG_NOTICE([CHECKS for libraries]) 469# 470# Define NO_OPENSSL environment variable if you do not have OpenSSL. 471# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). 472 473GIT_STASH_FLAGS($OPENSSLDIR) 474 475AC_CHECK_LIB([crypto], [SHA1_Init], 476[NEEDS_SSL_WITH_CRYPTO=], 477[AC_CHECK_LIB([ssl], [SHA1_Init], 478 [NEEDS_SSL_WITH_CRYPTO=YesPlease NO_OPENSSL=], 479 [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])]) 480 481GIT_UNSTASH_FLAGS($OPENSSLDIR) 482 483GIT_CONF_SUBST([NEEDS_SSL_WITH_CRYPTO]) 484GIT_CONF_SUBST([NO_OPENSSL]) 485 486# 487# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be 488# able to use Perl-compatible regular expressions. 489# 490 491if test -n "$USE_LIBPCRE"; then 492 493GIT_STASH_FLAGS($LIBPCREDIR) 494 495AC_CHECK_LIB([pcre], [pcre_version], 496[USE_LIBPCRE=YesPlease], 497[USE_LIBPCRE=]) 498 499GIT_UNSTASH_FLAGS($LIBPCREDIR) 500 501GIT_CONF_SUBST([USE_LIBPCRE]) 502 503fi 504 505# 506# Define NO_CURL if you do not have libcurl installed. git-http-pull and 507# git-http-push are not built, and you cannot use http:// and https:// 508# transports. 509 510GIT_STASH_FLAGS($CURLDIR) 511 512AC_CHECK_LIB([curl], [curl_global_init], 513[NO_CURL=], 514[NO_CURL=YesPlease]) 515 516GIT_UNSTASH_FLAGS($CURLDIR) 517 518GIT_CONF_SUBST([NO_CURL]) 519 520# 521# Define NO_EXPAT if you do not have expat installed. git-http-push is 522# not built, and you cannot push using http:// and https:// transports. 523 524GIT_STASH_FLAGS($EXPATDIR) 525 526AC_CHECK_LIB([expat], [XML_ParserCreate], 527[NO_EXPAT=], 528[NO_EXPAT=YesPlease]) 529 530GIT_UNSTASH_FLAGS($EXPATDIR) 531 532GIT_CONF_SUBST([NO_EXPAT]) 533 534# 535# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and 536# some Solaris installations). 537# Define NO_ICONV if neither libc nor libiconv support iconv. 538 539if test -z "$NO_ICONV"; then 540 541GIT_STASH_FLAGS($ICONVDIR) 542 543AC_DEFUN([ICONVTEST_SRC], 544[AC_LANG_PROGRAM([#include <iconv.h>], 545 [iconv_open("", "");])]) 546 547if test -n "$ICONVDIR"; then 548 lib_order="-liconv -lc" 549else 550 lib_order="-lc -liconv" 551fi 552 553NO_ICONV=YesPlease 554 555for l in $lib_order; do 556 if test "$l" = "-liconv"; then 557 NEEDS_LIBICONV=YesPlease 558 else 559 NEEDS_LIBICONV= 560 fi 561 562 old_LIBS="$LIBS" 563 LIBS="$LIBS $l" 564 AC_MSG_CHECKING([for iconv in $l]) 565 AC_LINK_IFELSE([ICONVTEST_SRC], 566 [AC_MSG_RESULT([yes]) 567 NO_ICONV= 568 break], 569 [AC_MSG_RESULT([no])]) 570 LIBS="$old_LIBS" 571done 572 573#in case of break 574LIBS="$old_LIBS" 575 576GIT_UNSTASH_FLAGS($ICONVDIR) 577 578GIT_CONF_SUBST([NEEDS_LIBICONV]) 579GIT_CONF_SUBST([NO_ICONV]) 580 581if test -n "$NO_ICONV"; then 582 NEEDS_LIBICONV= 583fi 584 585fi 586 587# 588# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. 589 590GIT_STASH_FLAGS($ZLIB_PATH) 591 592AC_DEFUN([ZLIBTEST_SRC], [ 593AC_LANG_PROGRAM([#include <zlib.h>], 594 [deflateBound(0, 0);])]) 595AC_MSG_CHECKING([for deflateBound in -lz]) 596old_LIBS="$LIBS" 597LIBS="$LIBS -lz" 598AC_LINK_IFELSE([ZLIBTEST_SRC], 599 [AC_MSG_RESULT([yes])], 600 [AC_MSG_RESULT([no]) 601 NO_DEFLATE_BOUND=yes]) 602LIBS="$old_LIBS" 603 604GIT_UNSTASH_FLAGS($ZLIB_PATH) 605 606GIT_CONF_SUBST([NO_DEFLATE_BOUND]) 607 608# 609# Define NEEDS_SOCKET if linking with libc is not enough (SunOS, 610# Patrick Mauritz). 611AC_CHECK_LIB([c], [socket], 612[NEEDS_SOCKET=], 613[NEEDS_SOCKET=YesPlease]) 614GIT_CONF_SUBST([NEEDS_SOCKET]) 615test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" 616 617# 618# The next few tests will define NEEDS_RESOLV if linking with 619# libresolv provides some of the functions we would normally get 620# from libc. 621NEEDS_RESOLV= 622# 623# Define NO_INET_NTOP if linking with -lresolv is not enough. 624# Solaris 2.7 in particular hos inet_ntop in -lresolv. 625NO_INET_NTOP= 626AC_CHECK_FUNC([inet_ntop], 627 [], 628 [AC_CHECK_LIB([resolv], [inet_ntop], 629 [NEEDS_RESOLV=YesPlease], 630 [NO_INET_NTOP=YesPlease]) 631]) 632GIT_CONF_SUBST([NO_INET_NTOP]) 633# 634# Define NO_INET_PTON if linking with -lresolv is not enough. 635# Solaris 2.7 in particular hos inet_pton in -lresolv. 636NO_INET_PTON= 637AC_CHECK_FUNC([inet_pton], 638 [], 639 [AC_CHECK_LIB([resolv], [inet_pton], 640 [NEEDS_RESOLV=YesPlease], 641 [NO_INET_PTON=YesPlease]) 642]) 643GIT_CONF_SUBST([NO_INET_PTON]) 644# 645# Define NO_HSTRERROR if linking with -lresolv is not enough. 646# Solaris 2.6 in particular has no hstrerror, even in -lresolv. 647NO_HSTRERROR= 648AC_CHECK_FUNC([hstrerror], 649 [], 650 [AC_CHECK_LIB([resolv], [hstrerror], 651 [NEEDS_RESOLV=YesPlease], 652 [NO_HSTRERROR=YesPlease]) 653]) 654GIT_CONF_SUBST([NO_HSTRERROR]) 655 656dnl This must go after all the possible places for its initialization, 657dnl in the AC_CHECK_FUNC invocations above. 658GIT_CONF_SUBST([NEEDS_RESOLV]) 659# 660# If any of the above tests determined that -lresolv is needed at 661# build-time, also set it here for remaining configure-time checks. 662test -n "$NEEDS_RESOLV" && LIBS="$LIBS -lresolv" 663 664AC_CHECK_LIB([c], [basename], 665[NEEDS_LIBGEN=], 666[NEEDS_LIBGEN=YesPlease]) 667GIT_CONF_SUBST([NEEDS_LIBGEN]) 668test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen" 669 670AC_CHECK_LIB([c], [gettext], 671[LIBC_CONTAINS_LIBINTL=YesPlease], 672[LIBC_CONTAINS_LIBINTL=]) 673GIT_CONF_SUBST([LIBC_CONTAINS_LIBINTL]) 674 675# 676# Define NO_GETTEXT if you don't want Git output to be translated. 677# A translated Git requires GNU libintl or another gettext implementation 678AC_CHECK_HEADER([libintl.h], 679[NO_GETTEXT=], 680[NO_GETTEXT=YesPlease]) 681GIT_CONF_SUBST([NO_GETTEXT]) 682 683if test -z "$NO_GETTEXT"; then 684 test -n "$LIBC_CONTAINS_LIBINTL" || LIBS="$LIBS -lintl" 685fi 686 687## Checks for header files. 688AC_MSG_NOTICE([CHECKS for header files]) 689# 690# Define NO_SYS_SELECT_H if you don't have sys/select.h. 691AC_CHECK_HEADER([sys/select.h], 692[NO_SYS_SELECT_H=], 693[NO_SYS_SELECT_H=UnfortunatelyYes]) 694GIT_CONF_SUBST([NO_SYS_SELECT_H]) 695# 696# Define NO_SYS_POLL_H if you don't have sys/poll.h 697AC_CHECK_HEADER([sys/poll.h], 698[NO_SYS_POLL_H=], 699[NO_SYS_POLL_H=UnfortunatelyYes]) 700GIT_CONF_SUBST([NO_SYS_POLL_H]) 701# 702# Define NO_INTTYPES_H if you don't have inttypes.h 703AC_CHECK_HEADER([inttypes.h], 704[NO_INTTYPES_H=], 705[NO_INTTYPES_H=UnfortunatelyYes]) 706GIT_CONF_SUBST([NO_INTTYPES_H]) 707# 708# Define OLD_ICONV if your library has an old iconv(), where the second 709# (input buffer pointer) parameter is declared with type (const char **). 710AC_DEFUN([OLDICONVTEST_SRC], [ 711AC_LANG_PROGRAM([[ 712#include <iconv.h> 713 714extern size_t iconv(iconv_t cd, 715 char **inbuf, size_t *inbytesleft, 716 char **outbuf, size_t *outbytesleft); 717]], [])]) 718 719GIT_STASH_FLAGS($ICONVDIR) 720 721AC_MSG_CHECKING([for old iconv()]) 722AC_COMPILE_IFELSE([OLDICONVTEST_SRC], 723 [AC_MSG_RESULT([no])], 724 [AC_MSG_RESULT([yes]) 725 OLD_ICONV=UnfortunatelyYes]) 726 727GIT_UNSTASH_FLAGS($ICONVDIR) 728 729GIT_CONF_SUBST([OLD_ICONV]) 730 731## Checks for typedefs, structures, and compiler characteristics. 732AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) 733# 734TYPE_SOCKLEN_T 735case $ac_cv_type_socklen_t in 736 yes) SOCKLEN_T='';; 737 *) SOCKLEN_T=$git_cv_socklen_t_equiv;; 738esac 739GIT_CONF_SUBST([SOCKLEN_T]) 740 741# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. 742AC_CHECK_MEMBER(struct dirent.d_ino, 743[NO_D_INO_IN_DIRENT=], 744[NO_D_INO_IN_DIRENT=YesPlease], 745[#include <dirent.h>]) 746GIT_CONF_SUBST([NO_D_INO_IN_DIRENT]) 747# 748# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks 749# d_type in struct dirent (latest Cygwin -- will be fixed soonish). 750AC_CHECK_MEMBER(struct dirent.d_type, 751[NO_D_TYPE_IN_DIRENT=], 752[NO_D_TYPE_IN_DIRENT=YesPlease], 753[#include <dirent.h>]) 754GIT_CONF_SUBST([NO_D_TYPE_IN_DIRENT]) 755# 756# Define NO_GECOS_IN_PWENT if you don't have pw_gecos in struct passwd 757# in the C library. 758AC_CHECK_MEMBER(struct passwd.pw_gecos, 759[NO_GECOS_IN_PWENT=], 760[NO_GECOS_IN_PWENT=YesPlease], 761[#include <pwd.h>]) 762GIT_CONF_SUBST([NO_GECOS_IN_PWENT]) 763# 764# Define NO_SOCKADDR_STORAGE if your platform does not have struct 765# sockaddr_storage. 766AC_CHECK_TYPE(struct sockaddr_storage, 767[NO_SOCKADDR_STORAGE=], 768[NO_SOCKADDR_STORAGE=YesPlease],[ 769#include <sys/types.h> 770#include <sys/socket.h> 771]) 772GIT_CONF_SUBST([NO_SOCKADDR_STORAGE]) 773# 774# Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). 775AC_CHECK_TYPE([struct addrinfo],[ 776 GIT_CHECK_FUNC([getaddrinfo], 777 [NO_IPV6=], 778 [NO_IPV6=YesPlease]) 779],[NO_IPV6=YesPlease],[ 780#include <sys/types.h> 781#include <sys/socket.h> 782#include <netdb.h> 783]) 784GIT_CONF_SUBST([NO_IPV6]) 785# 786# Define NO_REGEX if you have no or inferior regex support in your C library. 787AC_CACHE_CHECK([whether the platform regex can handle null bytes], 788 [ac_cv_c_excellent_regex], [ 789AC_EGREP_CPP(yippeeyeswehaveit, 790 AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 791#include <regex.h> 792], 793[#ifdef REG_STARTEND 794yippeeyeswehaveit 795#endif 796]), 797 [ac_cv_c_excellent_regex=yes], 798 [ac_cv_c_excellent_regex=no]) 799]) 800if test $ac_cv_c_excellent_regex = yes; then 801 NO_REGEX= 802else 803 NO_REGEX=YesPlease 804fi 805GIT_CONF_SUBST([NO_REGEX]) 806# 807# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds 808# when attempting to read from an fopen'ed directory. 809AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], 810 [ac_cv_fread_reads_directories], 811[ 812AC_RUN_IFELSE( 813 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 814 [[char c; 815 FILE *f = fopen(".", "r"); 816 return f && fread(&c, 1, 1, f)]])], 817 [ac_cv_fread_reads_directories=no], 818 [ac_cv_fread_reads_directories=yes]) 819]) 820if test $ac_cv_fread_reads_directories = yes; then 821 FREAD_READS_DIRECTORIES=UnfortunatelyYes 822else 823 FREAD_READS_DIRECTORIES= 824fi 825GIT_CONF_SUBST([FREAD_READS_DIRECTORIES]) 826# 827# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() 828# or vsnprintf() return -1 instead of number of characters which would 829# have been written to the final string if enough space had been available. 830AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], 831 [ac_cv_snprintf_returns_bogus], 832[ 833AC_RUN_IFELSE( 834 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 835 #include "stdarg.h" 836 837 int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) 838 { 839 int ret; 840 va_list ap; 841 va_start(ap, format); 842 ret = vsnprintf(str, maxsize, format, ap); 843 va_end(ap); 844 return ret; 845 }], 846 [[char buf[6]; 847 if (test_vsnprintf(buf, 3, "%s", "12345") != 5 848 || strcmp(buf, "12")) return 1; 849 if (snprintf(buf, 3, "%s", "12345") != 5 850 || strcmp(buf, "12")) return 1]])], 851 [ac_cv_snprintf_returns_bogus=no], 852 [ac_cv_snprintf_returns_bogus=yes]) 853]) 854if test $ac_cv_snprintf_returns_bogus = yes; then 855 SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes 856else 857 SNPRINTF_RETURNS_BOGUS= 858fi 859GIT_CONF_SUBST([SNPRINTF_RETURNS_BOGUS]) 860 861 862## Checks for library functions. 863## (in default C library and libraries checked by AC_CHECK_LIB) 864AC_MSG_NOTICE([CHECKS for library functions]) 865# 866# Define NO_LIBGEN_H if you don't have libgen.h. 867AC_CHECK_HEADER([libgen.h], 868[NO_LIBGEN_H=], 869[NO_LIBGEN_H=YesPlease]) 870GIT_CONF_SUBST([NO_LIBGEN_H]) 871# 872# Define HAVE_PATHS_H if you have paths.h. 873AC_CHECK_HEADER([paths.h], 874[HAVE_PATHS_H=YesPlease], 875[HAVE_PATHS_H=]) 876GIT_CONF_SUBST([HAVE_PATHS_H]) 877# 878# Define HAVE_LIBCHARSET_H if have libcharset.h 879AC_CHECK_HEADER([libcharset.h], 880[HAVE_LIBCHARSET_H=YesPlease], 881[HAVE_LIBCHARSET_H=]) 882GIT_CONF_SUBST([HAVE_LIBCHARSET_H]) 883# 884# Define HAVE_STRINGS_H if you have strings.h 885AC_CHECK_HEADER([strings.h], 886[HAVE_STRINGS_H=YesPlease], 887[HAVE_STRINGS_H=]) 888GIT_CONF_SUBST([HAVE_STRINGS_H]) 889# Define CHARSET_LIB if libiconv does not export the locale_charset symbol 890# and libcharset does 891CHARSET_LIB= 892AC_CHECK_LIB([iconv], [locale_charset], 893 [], 894 [AC_CHECK_LIB([charset], [locale_charset], 895 [CHARSET_LIB=-lcharset])]) 896GIT_CONF_SUBST([CHARSET_LIB]) 897# 898# Define NO_STRCASESTR if you don't have strcasestr. 899GIT_CHECK_FUNC(strcasestr, 900[NO_STRCASESTR=], 901[NO_STRCASESTR=YesPlease]) 902GIT_CONF_SUBST([NO_STRCASESTR]) 903# 904# Define NO_FNMATCH if you don't have fnmatch 905GIT_CHECK_FUNC(fnmatch, 906[NO_FNMATCH=], 907[NO_FNMATCH=YesPlease]) 908GIT_CONF_SUBST([NO_FNMATCH]) 909# 910# Define NO_FNMATCH_CASEFOLD if your fnmatch function doesn't have the 911# FNM_CASEFOLD GNU extension. 912AC_CACHE_CHECK([whether the fnmatch function supports the FNMATCH_CASEFOLD GNU extension], 913 [ac_cv_c_excellent_fnmatch], [ 914AC_EGREP_CPP(yippeeyeswehaveit, 915 AC_LANG_PROGRAM([ 916#include <fnmatch.h> 917], 918[#ifdef FNM_CASEFOLD 919yippeeyeswehaveit 920#endif 921]), 922 [ac_cv_c_excellent_fnmatch=yes], 923 [ac_cv_c_excellent_fnmatch=no]) 924]) 925if test $ac_cv_c_excellent_fnmatch = yes; then 926 NO_FNMATCH_CASEFOLD= 927else 928 NO_FNMATCH_CASEFOLD=YesPlease 929fi 930GIT_CONF_SUBST([NO_FNMATCH_CASEFOLD]) 931# 932# Define NO_MEMMEM if you don't have memmem. 933GIT_CHECK_FUNC(memmem, 934[NO_MEMMEM=], 935[NO_MEMMEM=YesPlease]) 936GIT_CONF_SUBST([NO_MEMMEM]) 937# 938# Define NO_STRLCPY if you don't have strlcpy. 939GIT_CHECK_FUNC(strlcpy, 940[NO_STRLCPY=], 941[NO_STRLCPY=YesPlease]) 942GIT_CONF_SUBST([NO_STRLCPY]) 943# 944# Define NO_UINTMAX_T if your platform does not have uintmax_t 945AC_CHECK_TYPE(uintmax_t, 946[NO_UINTMAX_T=], 947[NO_UINTMAX_T=YesPlease],[ 948#include <inttypes.h> 949]) 950GIT_CONF_SUBST([NO_UINTMAX_T]) 951# 952# Define NO_STRTOUMAX if you don't have strtoumax in the C library. 953GIT_CHECK_FUNC(strtoumax, 954[NO_STRTOUMAX=], 955[NO_STRTOUMAX=YesPlease]) 956GIT_CONF_SUBST([NO_STRTOUMAX]) 957# 958# Define NO_SETENV if you don't have setenv in the C library. 959GIT_CHECK_FUNC(setenv, 960[NO_SETENV=], 961[NO_SETENV=YesPlease]) 962GIT_CONF_SUBST([NO_SETENV]) 963# 964# Define NO_UNSETENV if you don't have unsetenv in the C library. 965GIT_CHECK_FUNC(unsetenv, 966[NO_UNSETENV=], 967[NO_UNSETENV=YesPlease]) 968GIT_CONF_SUBST([NO_UNSETENV]) 969# 970# Define NO_MKDTEMP if you don't have mkdtemp in the C library. 971GIT_CHECK_FUNC(mkdtemp, 972[NO_MKDTEMP=], 973[NO_MKDTEMP=YesPlease]) 974GIT_CONF_SUBST([NO_MKDTEMP]) 975# 976# Define NO_MKSTEMPS if you don't have mkstemps in the C library. 977GIT_CHECK_FUNC(mkstemps, 978[NO_MKSTEMPS=], 979[NO_MKSTEMPS=YesPlease]) 980GIT_CONF_SUBST([NO_MKSTEMPS]) 981# 982# Define NO_INITGROUPS if you don't have initgroups in the C library. 983GIT_CHECK_FUNC(initgroups, 984[NO_INITGROUPS=], 985[NO_INITGROUPS=YesPlease]) 986GIT_CONF_SUBST([NO_INITGROUPS]) 987# 988# 989# Define NO_MMAP if you want to avoid mmap. 990# 991# Define NO_ICONV if your libc does not properly support iconv. 992 993 994## Other checks. 995# Define USE_PIC if you need the main git objects to be built with -fPIC 996# in order to build and link perl/Git.so. x86-64 seems to need this. 997# 998# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. 999# Enable it on Windows. By default, symrefs are still used.1000#1001# Define NO_PTHREADS if we do not have pthreads.1002#1003# Define PTHREAD_LIBS to the linker flag used for Pthread support.1004AC_DEFUN([PTHREADTEST_SRC], [1005AC_LANG_PROGRAM([[1006#include <pthread.h>1007]], [[1008 pthread_mutex_t test_mutex;1009 pthread_key_t test_key;1010 int retcode = 0;1011 retcode |= pthread_key_create(&test_key, (void *)0);1012 retcode |= pthread_mutex_init(&test_mutex,(void *)0);1013 retcode |= pthread_mutex_lock(&test_mutex);1014 retcode |= pthread_mutex_unlock(&test_mutex);1015 return retcode;1016]])])10171018dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM(1019dnl [[#include <pthread.h>]],1020dnl [[pthread_mutex_t test_mutex;]]1021dnl )])10221023NO_PTHREADS=UnfortunatelyYes1024PTHREAD_LIBS=10251026if test -n "$USER_NOPTHREAD"; then1027 AC_MSG_NOTICE([Skipping POSIX Threads at user request.])1028# handle these separately since PTHREAD_CFLAGS could be '-lpthreads1029# -D_REENTRANT' or some such.1030elif test -z "$PTHREAD_CFLAGS"; then1031 threads_found=no1032 # Attempt to compile and link some code using pthreads to determine1033 # required linker flags. The order is somewhat important here: We1034 # first try it without any extra flags, to catch systems where1035 # pthreads are part of the C library, then go on testing various other1036 # flags. We do so to avoid false positives. For example, on Mac OS X1037 # pthreads are part of the C library; moreover, the compiler allows us1038 # to add "-mt" to the CFLAGS (although it will do nothing except1039 # trigger a warning about an unused flag). Hence if we checked for1040 # "-mt" before "" we would end up picking it. But unfortunately this1041 # would then trigger compiler warnings on every single file we compile.1042 for opt in "" -mt -pthread -lpthread; do1043 old_CFLAGS="$CFLAGS"1044 CFLAGS="$opt $CFLAGS"1045 AC_MSG_CHECKING([for POSIX Threads with '$opt'])1046 AC_LINK_IFELSE([PTHREADTEST_SRC],1047 [AC_MSG_RESULT([yes])1048 NO_PTHREADS=1049 PTHREAD_LIBS="$opt"1050 PTHREAD_CFLAGS="$opt"1051 threads_found=yes1052 break1053 ],1054 [AC_MSG_RESULT([no])])1055 CFLAGS="$old_CFLAGS"1056 done1057 if test $threads_found != yes; then1058 AC_CHECK_LIB([pthread], [pthread_create],1059 [PTHREAD_LIBS="-lpthread"],1060 [NO_PTHREADS=UnfortunatelyYes])1061 fi1062else1063 old_CFLAGS="$CFLAGS"1064 CFLAGS="$PTHREAD_CFLAGS $CFLAGS"1065 AC_MSG_CHECKING([for POSIX Threads with '$PTHREAD_CFLAGS'])1066 AC_LINK_IFELSE([PTHREADTEST_SRC],1067 [AC_MSG_RESULT([yes])1068 NO_PTHREADS=1069 PTHREAD_LIBS="$PTHREAD_CFLAGS"1070 ],1071 [AC_MSG_RESULT([no])])10721073 CFLAGS="$old_CFLAGS"1074fi10751076CFLAGS="$old_CFLAGS"10771078GIT_CONF_SUBST([PTHREAD_CFLAGS])1079GIT_CONF_SUBST([PTHREAD_LIBS])1080GIT_CONF_SUBST([NO_PTHREADS])10811082## Output files1083AC_CONFIG_FILES(["${config_file}":"${config_in}"])1084AC_OUTPUT