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 "$lib"; then 187 AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) 188 lib=lib 189fi 190 191AC_ARG_ENABLE([pthreads], 192 [AS_HELP_STRING([--enable-pthreads=FLAGS], 193 [FLAGS is the value to pass to the compiler to enable POSIX Threads.] 194 [The default if FLAGS is not specified is to try first -pthread] 195 [and then -lpthread.] 196 [--disable-pthreads will disable threading.])], 197[ 198if test "x$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 '$CSSMIN' to enable CSS minifying]) 229 GIT_CONF_SUBST([CSSMIN]) 230]) 231 232## Site configuration (override autodetection) 233## --with-PACKAGE[=ARG] and --without-PACKAGE 234AC_MSG_NOTICE([CHECKS for site configuration]) 235# 236# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability 237# tests. These tests take up a significant amount of the total test time 238# but are not needed unless you plan to talk to SVN repos. 239# 240# Define PPC_SHA1 environment variable when running make to make use of 241# a bundled SHA1 routine optimized for PowerPC. 242# 243# Define NO_OPENSSL environment variable if you do not have OpenSSL. 244# 245# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in 246# /foo/bar/include and /foo/bar/lib directories. 247AC_ARG_WITH(openssl, 248AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) 249AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]), 250GIT_PARSE_WITH([openssl])) 251 252# Define USE_LIBPCRE if you have and want to use libpcre. Various 253# commands such as log and grep offer runtime options to use 254# Perl-compatible regular expressions instead of standard or extended 255# POSIX regular expressions. 256# 257# Currently USE_LIBPCRE is a synonym for USE_LIBPCRE1, define 258# USE_LIBPCRE2 instead if you'd like to use version 2 of the PCRE 259# library. The USE_LIBPCRE flag will likely be changed to mean v2 by 260# default in future releases. 261# 262# Define LIBPCREDIR=/foo/bar if your PCRE header and library files are in 263# /foo/bar/include and /foo/bar/lib directories. 264# 265AC_ARG_WITH(libpcre, 266AS_HELP_STRING([--with-libpcre],[synonym for --with-libpcre1]), 267 if test "$withval" = "no"; then 268 USE_LIBPCRE1= 269 elif test "$withval" = "yes"; then 270 USE_LIBPCRE1=YesPlease 271 else 272 USE_LIBPCRE1=YesPlease 273 LIBPCREDIR=$withval 274 AC_MSG_NOTICE([Setting LIBPCREDIR to $LIBPCREDIR]) 275 dnl USE_LIBPCRE1 can still be modified below, so don't substitute 276 dnl it yet. 277 GIT_CONF_SUBST([LIBPCREDIR]) 278 fi) 279 280AC_ARG_WITH(libpcre1, 281AS_HELP_STRING([--with-libpcre1],[support Perl-compatible regexes via libpcre1 (default is NO)]) 282AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]), 283 if test "$withval" = "no"; then 284 USE_LIBPCRE1= 285 elif test "$withval" = "yes"; then 286 USE_LIBPCRE1=YesPlease 287 else 288 USE_LIBPCRE1=YesPlease 289 LIBPCREDIR=$withval 290 AC_MSG_NOTICE([Setting LIBPCREDIR to $LIBPCREDIR]) 291 dnl USE_LIBPCRE1 can still be modified below, so don't substitute 292 dnl it yet. 293 GIT_CONF_SUBST([LIBPCREDIR]) 294 fi) 295 296AC_ARG_WITH(libpcre2, 297AS_HELP_STRING([--with-libpcre2],[support Perl-compatible regexes via libpcre2 (default is NO)]) 298AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]), 299 if test -n "$USE_LIBPCRE1"; then 300 AC_MSG_ERROR([Only supply one of --with-libpcre1 or --with-libpcre2!]) 301 fi 302 303 if test "$withval" = "no"; then 304 USE_LIBPCRE2= 305 elif test "$withval" = "yes"; then 306 USE_LIBPCRE2=YesPlease 307 else 308 USE_LIBPCRE2=YesPlease 309 LIBPCREDIR=$withval 310 AC_MSG_NOTICE([Setting LIBPCREDIR to $LIBPCREDIR]) 311 dnl USE_LIBPCRE2 can still be modified below, so don't substitute 312 dnl it yet. 313 GIT_CONF_SUBST([LIBPCREDIR]) 314 fi) 315# 316# Define HAVE_ALLOCA_H if you have working alloca(3) defined in that header. 317AC_FUNC_ALLOCA 318case $ac_cv_working_alloca_h in 319 yes) HAVE_ALLOCA_H=YesPlease;; 320 *) HAVE_ALLOCA_H='';; 321esac 322GIT_CONF_SUBST([HAVE_ALLOCA_H]) 323# 324# Define NO_CURL if you do not have curl installed. git-http-pull and 325# git-http-push are not built, and you cannot use http:// and https:// 326# transports. 327# 328# Define CURLDIR=/foo/bar if your curl header and library files are in 329# /foo/bar/include and /foo/bar/lib directories. 330AC_ARG_WITH(curl, 331AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) 332AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), 333GIT_PARSE_WITH(curl)) 334# 335# Define NO_EXPAT if you do not have expat installed. git-http-push is 336# not built, and you cannot push using http:// and https:// transports. 337# 338# Define EXPATDIR=/foo/bar if your expat header and library files are in 339# /foo/bar/include and /foo/bar/lib directories. 340AC_ARG_WITH(expat, 341AS_HELP_STRING([--with-expat], 342[support git-push using http:// and https:// transports via WebDAV (default is YES)]) 343AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), 344GIT_PARSE_WITH(expat)) 345# 346# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink 347# installed in /sw, but don't want GIT to link against any libraries 348# installed there. If defined you may specify your own (or Fink's) 349# include directories and library directories by defining CFLAGS 350# and LDFLAGS appropriately. 351# 352# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, 353# have DarwinPorts installed in /opt/local, but don't want GIT to 354# link against any libraries installed there. If defined you may 355# specify your own (or DarwinPort's) include directories and 356# library directories by defining CFLAGS and LDFLAGS appropriately. 357# 358# Define NO_MMAP if you want to avoid mmap. 359# 360# Define NO_ICONV if your libc does not properly support iconv. 361AC_ARG_WITH(iconv, 362AS_HELP_STRING([--without-iconv], 363[if your architecture doesn't properly support iconv]) 364AS_HELP_STRING([--with-iconv=PATH], 365[PATH is prefix for libiconv library and headers]) 366AS_HELP_STRING([], 367[used only if you need linking with libiconv]), 368GIT_PARSE_WITH(iconv)) 369 370## --enable-FEATURE[=ARG] and --disable-FEATURE 371# 372# Define USE_NSEC below if you want git to care about sub-second file mtimes 373# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and 374# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely 375# randomly break unless your underlying filesystem supports those sub-second 376# times (my ext3 doesn't). 377# 378# Define USE_STDEV below if you want git to care about the underlying device 379# change being considered an inode change from the update-index perspective. 380 381# 382# Allow user to set ETC_GITCONFIG variable 383GIT_PARSE_WITH_SET_MAKE_VAR(gitconfig, ETC_GITCONFIG, 384 Use VALUE instead of /etc/gitconfig as the 385 global git configuration file. 386 If VALUE is not fully qualified it will be interpreted 387 as a path relative to the computed prefix at runtime.) 388 389# 390# Allow user to set ETC_GITATTRIBUTES variable 391GIT_PARSE_WITH_SET_MAKE_VAR(gitattributes, ETC_GITATTRIBUTES, 392 Use VALUE instead of /etc/gitattributes as the 393 global git attributes file. 394 If VALUE is not fully qualified it will be interpreted 395 as a path relative to the computed prefix at runtime.) 396 397# 398# Allow user to set the default pager 399GIT_PARSE_WITH_SET_MAKE_VAR(pager, DEFAULT_PAGER, 400 Use VALUE as the fall-back pager instead of 'less'. 401 This is used by things like 'git log' when the user 402 does not specify a pager to use through alternate 403 methods. eg: /usr/bin/pager) 404# 405# Allow user to set the default editor 406GIT_PARSE_WITH_SET_MAKE_VAR(editor, DEFAULT_EDITOR, 407 Use VALUE as the fall-back editor instead of 'vi'. 408 This is used by things like 'git commit' when the user 409 does not specify a preferred editor through other 410 methods. eg: /usr/bin/editor) 411 412# 413# Define SHELL_PATH to provide path to shell. 414GIT_ARG_SET_PATH(shell) 415# 416# Define PERL_PATH to provide path to Perl. 417GIT_ARG_SET_PATH(perl) 418# 419# Define PYTHON_PATH to provide path to Python. 420GIT_ARG_SET_PATH(python, allow-without) 421# 422# Define ZLIB_PATH to provide path to zlib. 423GIT_ARG_SET_PATH(zlib) 424# 425# Declare the with-tcltk/without-tcltk options. 426AC_ARG_WITH(tcltk, 427AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)]) 428AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.]) 429AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if]) 430AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]), 431GIT_PARSE_WITH(tcltk)) 432# 433 434 435## Checks for programs. 436AC_MSG_NOTICE([CHECKS for programs]) 437# 438AC_PROG_CC([cc gcc]) 439AC_C_INLINE 440case $ac_cv_c_inline in 441 inline | yes | no) INLINE='';; 442 *) INLINE=$ac_cv_c_inline ;; 443esac 444GIT_CONF_SUBST([INLINE]) 445 446# which switch to pass runtime path to dynamic libraries to the linker 447AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [ 448 SAVE_LDFLAGS="${LDFLAGS}" 449 LDFLAGS="${SAVE_LDFLAGS} -R /" 450 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no]) 451 LDFLAGS="${SAVE_LDFLAGS}" 452]) 453if test "$git_cv_ld_dashr" = "yes"; then 454 CC_LD_DYNPATH=-R 455else 456 AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [ 457 SAVE_LDFLAGS="${LDFLAGS}" 458 LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/" 459 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no]) 460 LDFLAGS="${SAVE_LDFLAGS}" 461 ]) 462 if test "$git_cv_ld_wl_rpath" = "yes"; then 463 CC_LD_DYNPATH=-Wl,-rpath, 464 else 465 AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [ 466 SAVE_LDFLAGS="${LDFLAGS}" 467 LDFLAGS="${SAVE_LDFLAGS} -rpath /" 468 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no]) 469 LDFLAGS="${SAVE_LDFLAGS}" 470 ]) 471 if test "$git_cv_ld_rpath" = "yes"; then 472 CC_LD_DYNPATH=-rpath 473 else 474 CC_LD_DYNPATH= 475 AC_MSG_WARN([linker does not support runtime path to dynamic libraries]) 476 fi 477 fi 478fi 479GIT_CONF_SUBST([CC_LD_DYNPATH]) 480#AC_PROG_INSTALL # needs install-sh or install.sh in sources 481AC_CHECK_TOOLS(AR, [gar ar], :) 482AC_CHECK_PROGS(TAR, [gtar tar]) 483AC_CHECK_PROGS(DIFF, [gnudiff gdiff diff]) 484# TCLTK_PATH will be set to some value if we want Tcl/Tk 485# or will be empty otherwise. 486if test -n "$NO_TCLTK"; then 487 TCLTK_PATH= 488else 489 if test "$with_tcltk" = ""; then 490 # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'. 491 TCLTK_PATH=wish 492 elif test "$with_tcltk" = "yes"; then 493 # Tcl/Tk check requested. 494 AC_CHECK_PROGS(TCLTK_PATH, [wish], ) 495 else 496 AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk]) 497 TCLTK_PATH="$with_tcltk" 498 fi 499fi 500GIT_CONF_SUBST([TCLTK_PATH]) 501AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) 502if test -n "$ASCIIDOC"; then 503 AC_MSG_CHECKING([for asciidoc version]) 504 asciidoc_version=`$ASCIIDOC --version 2>/dev/null` 505 case "${asciidoc_version}" in 506 asciidoc' '8*) 507 AC_MSG_RESULT([${asciidoc_version}]) 508 ;; 509 *) 510 AC_MSG_RESULT([${asciidoc_version} (unknown)]) 511 ;; 512 esac 513fi 514 515if grep -a ascii configure.ac >/dev/null; then 516 AC_MSG_RESULT([Using 'grep -a' for sane_grep]) 517 SANE_TEXT_GREP=-a 518else 519 SANE_TEXT_GREP= 520fi 521GIT_CONF_SUBST([SANE_TEXT_GREP]) 522 523## Checks for libraries. 524AC_MSG_NOTICE([CHECKS for libraries]) 525# 526# Define NO_OPENSSL environment variable if you do not have OpenSSL. 527# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). 528 529GIT_STASH_FLAGS($OPENSSLDIR) 530 531AC_CHECK_LIB([crypto], [SHA1_Init], 532[NEEDS_SSL_WITH_CRYPTO=], 533[AC_CHECK_LIB([ssl], [SHA1_Init], 534 [NEEDS_SSL_WITH_CRYPTO=YesPlease NO_OPENSSL=], 535 [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])]) 536 537GIT_UNSTASH_FLAGS($OPENSSLDIR) 538 539GIT_CONF_SUBST([NEEDS_SSL_WITH_CRYPTO]) 540GIT_CONF_SUBST([NO_OPENSSL]) 541 542# 543# Handle the USE_LIBPCRE1 and USE_LIBPCRE2 options potentially set 544# above. 545# 546 547if test -n "$USE_LIBPCRE1"; then 548 549GIT_STASH_FLAGS($LIBPCREDIR) 550 551AC_CHECK_LIB([pcre], [pcre_version], 552[USE_LIBPCRE=YesPlease], 553[USE_LIBPCRE=]) 554 555GIT_UNSTASH_FLAGS($LIBPCREDIR) 556 557GIT_CONF_SUBST([USE_LIBPCRE1]) 558 559fi 560 561 562if test -n "$USE_LIBPCRE2"; then 563 564GIT_STASH_FLAGS($LIBPCREDIR) 565 566AC_CHECK_LIB([pcre2-8], [pcre2_config_8], 567[USE_LIBPCRE2=YesPlease], 568[USE_LIBPCRE2=]) 569 570GIT_UNSTASH_FLAGS($LIBPCREDIR) 571 572GIT_CONF_SUBST([USE_LIBPCRE2]) 573 574fi 575 576# 577# Define NO_CURL if you do not have libcurl installed. git-http-pull and 578# git-http-push are not built, and you cannot use http:// and https:// 579# transports. 580 581GIT_STASH_FLAGS($CURLDIR) 582 583AC_CHECK_LIB([curl], [curl_global_init], 584[NO_CURL=], 585[NO_CURL=YesPlease]) 586 587GIT_UNSTASH_FLAGS($CURLDIR) 588 589GIT_CONF_SUBST([NO_CURL]) 590 591if test -z "$NO_CURL"; then 592 593AC_CHECK_PROG([CURL_CONFIG], [curl-config], 594[curl-config], 595[no]) 596 597if test $CURL_CONFIG != no; then 598 GIT_CONF_SUBST([CURL_CONFIG]) 599 if test -z "${NO_OPENSSL}"; then 600 AC_MSG_CHECKING([if Curl supports SSL]) 601 if test $(curl-config --features|grep SSL) = SSL; then 602 NEEDS_SSL_WITH_CURL=YesPlease 603 AC_MSG_RESULT([yes]) 604 else 605 NEEDS_SSL_WITH_CURL= 606 AC_MSG_RESULT([no]) 607 fi 608 GIT_CONF_SUBST([NEEDS_SSL_WITH_CURL]) 609 fi 610fi 611 612fi 613 614 615# 616# Define NO_EXPAT if you do not have expat installed. git-http-push is 617# not built, and you cannot push using http:// and https:// transports. 618 619GIT_STASH_FLAGS($EXPATDIR) 620 621AC_CHECK_LIB([expat], [XML_ParserCreate], 622[NO_EXPAT=], 623[NO_EXPAT=YesPlease]) 624 625GIT_UNSTASH_FLAGS($EXPATDIR) 626 627GIT_CONF_SUBST([NO_EXPAT]) 628 629# 630# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and 631# some Solaris installations). 632# Define NO_ICONV if neither libc nor libiconv support iconv. 633 634if test -z "$NO_ICONV"; then 635 636GIT_STASH_FLAGS($ICONVDIR) 637 638AC_DEFUN([ICONVTEST_SRC], 639[AC_LANG_PROGRAM([#include <iconv.h>], 640 [iconv_open("", "");])]) 641 642if test -n "$ICONVDIR"; then 643 lib_order="-liconv -lc" 644else 645 lib_order="-lc -liconv" 646fi 647 648NO_ICONV=YesPlease 649 650for l in $lib_order; do 651 if test "$l" = "-liconv"; then 652 NEEDS_LIBICONV=YesPlease 653 else 654 NEEDS_LIBICONV= 655 fi 656 657 old_LIBS="$LIBS" 658 LIBS="$LIBS $l" 659 AC_MSG_CHECKING([for iconv in $l]) 660 AC_LINK_IFELSE([ICONVTEST_SRC], 661 [AC_MSG_RESULT([yes]) 662 NO_ICONV= 663 break], 664 [AC_MSG_RESULT([no])]) 665 LIBS="$old_LIBS" 666done 667 668#in case of break 669LIBS="$old_LIBS" 670 671GIT_UNSTASH_FLAGS($ICONVDIR) 672 673GIT_CONF_SUBST([NEEDS_LIBICONV]) 674GIT_CONF_SUBST([NO_ICONV]) 675 676if test -n "$NO_ICONV"; then 677 NEEDS_LIBICONV= 678fi 679 680fi 681 682# 683# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. 684 685GIT_STASH_FLAGS($ZLIB_PATH) 686 687AC_DEFUN([ZLIBTEST_SRC], [ 688AC_LANG_PROGRAM([#include <zlib.h>], 689 [deflateBound(0, 0);])]) 690AC_MSG_CHECKING([for deflateBound in -lz]) 691old_LIBS="$LIBS" 692LIBS="$LIBS -lz" 693AC_LINK_IFELSE([ZLIBTEST_SRC], 694 [AC_MSG_RESULT([yes])], 695 [AC_MSG_RESULT([no]) 696 NO_DEFLATE_BOUND=yes]) 697LIBS="$old_LIBS" 698 699GIT_UNSTASH_FLAGS($ZLIB_PATH) 700 701GIT_CONF_SUBST([NO_DEFLATE_BOUND]) 702 703# 704# Define NEEDS_SOCKET if linking with libc is not enough (SunOS, 705# Patrick Mauritz). 706AC_CHECK_LIB([c], [socket], 707[NEEDS_SOCKET=], 708[NEEDS_SOCKET=YesPlease]) 709GIT_CONF_SUBST([NEEDS_SOCKET]) 710test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" 711 712# 713# The next few tests will define NEEDS_RESOLV if linking with 714# libresolv provides some of the functions we would normally get 715# from libc. 716NEEDS_RESOLV= 717# 718# Define NO_INET_NTOP if linking with -lresolv is not enough. 719# Solaris 2.7 in particular hos inet_ntop in -lresolv. 720NO_INET_NTOP= 721AC_CHECK_FUNC([inet_ntop], 722 [], 723 [AC_CHECK_LIB([resolv], [inet_ntop], 724 [NEEDS_RESOLV=YesPlease], 725 [NO_INET_NTOP=YesPlease]) 726]) 727GIT_CONF_SUBST([NO_INET_NTOP]) 728# 729# Define NO_INET_PTON if linking with -lresolv is not enough. 730# Solaris 2.7 in particular hos inet_pton in -lresolv. 731NO_INET_PTON= 732AC_CHECK_FUNC([inet_pton], 733 [], 734 [AC_CHECK_LIB([resolv], [inet_pton], 735 [NEEDS_RESOLV=YesPlease], 736 [NO_INET_PTON=YesPlease]) 737]) 738GIT_CONF_SUBST([NO_INET_PTON]) 739# 740# Define NO_HSTRERROR if linking with -lresolv is not enough. 741# Solaris 2.6 in particular has no hstrerror, even in -lresolv. 742NO_HSTRERROR= 743AC_CHECK_FUNC([hstrerror], 744 [], 745 [AC_CHECK_LIB([resolv], [hstrerror], 746 [NEEDS_RESOLV=YesPlease], 747 [NO_HSTRERROR=YesPlease]) 748]) 749GIT_CONF_SUBST([NO_HSTRERROR]) 750 751dnl This must go after all the possible places for its initialization, 752dnl in the AC_CHECK_FUNC invocations above. 753GIT_CONF_SUBST([NEEDS_RESOLV]) 754# 755# If any of the above tests determined that -lresolv is needed at 756# build-time, also set it here for remaining configure-time checks. 757test -n "$NEEDS_RESOLV" && LIBS="$LIBS -lresolv" 758 759AC_CHECK_LIB([c], [basename], 760[NEEDS_LIBGEN=], 761[NEEDS_LIBGEN=YesPlease]) 762GIT_CONF_SUBST([NEEDS_LIBGEN]) 763test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen" 764 765AC_CHECK_LIB([c], [gettext], 766[LIBC_CONTAINS_LIBINTL=YesPlease], 767[LIBC_CONTAINS_LIBINTL=]) 768GIT_CONF_SUBST([LIBC_CONTAINS_LIBINTL]) 769 770# 771# Define NO_GETTEXT if you don't want Git output to be translated. 772# A translated Git requires GNU libintl or another gettext implementation 773AC_CHECK_HEADER([libintl.h], 774[NO_GETTEXT=], 775[NO_GETTEXT=YesPlease]) 776GIT_CONF_SUBST([NO_GETTEXT]) 777 778if test -z "$NO_GETTEXT"; then 779 test -n "$LIBC_CONTAINS_LIBINTL" || LIBS="$LIBS -lintl" 780fi 781 782## Checks for header files. 783AC_MSG_NOTICE([CHECKS for header files]) 784# 785# Define NO_SYS_SELECT_H if you don't have sys/select.h. 786AC_CHECK_HEADER([sys/select.h], 787[NO_SYS_SELECT_H=], 788[NO_SYS_SELECT_H=UnfortunatelyYes]) 789GIT_CONF_SUBST([NO_SYS_SELECT_H]) 790# 791# Define NO_SYS_POLL_H if you don't have sys/poll.h 792AC_CHECK_HEADER([sys/poll.h], 793[NO_SYS_POLL_H=], 794[NO_SYS_POLL_H=UnfortunatelyYes]) 795GIT_CONF_SUBST([NO_SYS_POLL_H]) 796# 797# Define NO_INTTYPES_H if you don't have inttypes.h 798AC_CHECK_HEADER([inttypes.h], 799[NO_INTTYPES_H=], 800[NO_INTTYPES_H=UnfortunatelyYes]) 801GIT_CONF_SUBST([NO_INTTYPES_H]) 802# 803# Define OLD_ICONV if your library has an old iconv(), where the second 804# (input buffer pointer) parameter is declared with type (const char **). 805AC_DEFUN([OLDICONVTEST_SRC], [ 806AC_LANG_PROGRAM([[ 807#include <iconv.h> 808 809extern size_t iconv(iconv_t cd, 810 char **inbuf, size_t *inbytesleft, 811 char **outbuf, size_t *outbytesleft); 812]], [])]) 813 814GIT_STASH_FLAGS($ICONVDIR) 815 816AC_MSG_CHECKING([for old iconv()]) 817AC_COMPILE_IFELSE([OLDICONVTEST_SRC], 818 [AC_MSG_RESULT([no])], 819 [AC_MSG_RESULT([yes]) 820 OLD_ICONV=UnfortunatelyYes]) 821 822GIT_UNSTASH_FLAGS($ICONVDIR) 823 824GIT_CONF_SUBST([OLD_ICONV]) 825 826## Checks for typedefs, structures, and compiler characteristics. 827AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) 828# 829TYPE_SOCKLEN_T 830case $ac_cv_type_socklen_t in 831 yes) SOCKLEN_T='';; 832 *) SOCKLEN_T=$git_cv_socklen_t_equiv;; 833esac 834GIT_CONF_SUBST([SOCKLEN_T]) 835 836# 837# Define NO_STRUCT_ITIMERVAL if you don't have struct itimerval. 838AC_CHECK_TYPES([struct itimerval], 839[NO_STRUCT_ITIMERVAL=], 840[NO_STRUCT_ITIMERVAL=UnfortunatelyYes], 841[#include <sys/time.h>]) 842GIT_CONF_SUBST([NO_STRUCT_ITIMERVAL]) 843# 844# Define USE_ST_TIMESPEC=YesPlease when stat.st_mtimespec.tv_nsec exists. 845# Define NO_NSEC=YesPlease when neither stat.st_mtim.tv_nsec nor 846# stat.st_mtimespec.tv_nsec exists. 847AC_CHECK_MEMBER([struct stat.st_mtimespec.tv_nsec]) 848AC_CHECK_MEMBER([struct stat.st_mtim.tv_nsec]) 849if test x$ac_cv_member_struct_stat_st_mtimespec_tv_nsec = xyes; then 850 USE_ST_TIMESPEC=YesPlease 851 GIT_CONF_SUBST([USE_ST_TIMESPEC]) 852elif test x$ac_cv_member_struct_stat_st_mtim_tv_nsec != xyes; then 853 NO_NSEC=YesPlease 854 GIT_CONF_SUBST([NO_NSEC]) 855fi 856# 857# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks 858# d_type in struct dirent (latest Cygwin -- will be fixed soonish). 859AC_CHECK_MEMBER(struct dirent.d_type, 860[NO_D_TYPE_IN_DIRENT=], 861[NO_D_TYPE_IN_DIRENT=YesPlease], 862[#include <dirent.h>]) 863GIT_CONF_SUBST([NO_D_TYPE_IN_DIRENT]) 864# 865# Define NO_GECOS_IN_PWENT if you don't have pw_gecos in struct passwd 866# in the C library. 867AC_CHECK_MEMBER(struct passwd.pw_gecos, 868[NO_GECOS_IN_PWENT=], 869[NO_GECOS_IN_PWENT=YesPlease], 870[#include <pwd.h>]) 871GIT_CONF_SUBST([NO_GECOS_IN_PWENT]) 872# 873# Define NO_SOCKADDR_STORAGE if your platform does not have struct 874# sockaddr_storage. 875AC_CHECK_TYPE(struct sockaddr_storage, 876[NO_SOCKADDR_STORAGE=], 877[NO_SOCKADDR_STORAGE=YesPlease],[ 878#include <sys/types.h> 879#include <sys/socket.h> 880]) 881GIT_CONF_SUBST([NO_SOCKADDR_STORAGE]) 882# 883# Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). 884AC_CHECK_TYPE([struct addrinfo],[ 885 GIT_CHECK_FUNC([getaddrinfo], 886 [NO_IPV6=], 887 [NO_IPV6=YesPlease]) 888],[NO_IPV6=YesPlease],[ 889#include <sys/types.h> 890#include <sys/socket.h> 891#include <netdb.h> 892]) 893GIT_CONF_SUBST([NO_IPV6]) 894# 895# Define NO_REGEX if your C library lacks regex support with REG_STARTEND 896# feature. 897AC_CACHE_CHECK([whether the platform regex supports REG_STARTEND], 898 [ac_cv_c_regex_with_reg_startend], [ 899AC_EGREP_CPP(yippeeyeswehaveit, 900 AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 901#include <regex.h> 902], 903[#ifdef REG_STARTEND 904yippeeyeswehaveit 905#endif 906]), 907 [ac_cv_c_regex_with_reg_startend=yes], 908 [ac_cv_c_regex_with_reg_startend=no]) 909]) 910if test $ac_cv_c_regex_with_reg_startend = yes; then 911 NO_REGEX= 912else 913 NO_REGEX=YesPlease 914fi 915GIT_CONF_SUBST([NO_REGEX]) 916# 917# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds 918# when attempting to read from an fopen'ed directory. 919AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], 920 [ac_cv_fread_reads_directories], 921[ 922AC_RUN_IFELSE( 923 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 924 [[ 925 FILE *f = fopen(".", "r"); 926 return f)]])], 927 [ac_cv_fread_reads_directories=no], 928 [ac_cv_fread_reads_directories=yes]) 929]) 930if test $ac_cv_fread_reads_directories = yes; then 931 FREAD_READS_DIRECTORIES=UnfortunatelyYes 932else 933 FREAD_READS_DIRECTORIES= 934fi 935GIT_CONF_SUBST([FREAD_READS_DIRECTORIES]) 936# 937# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() 938# or vsnprintf() return -1 instead of number of characters which would 939# have been written to the final string if enough space had been available. 940AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], 941 [ac_cv_snprintf_returns_bogus], 942[ 943AC_RUN_IFELSE( 944 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT 945 #include "stdarg.h" 946 947 int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) 948 { 949 int ret; 950 va_list ap; 951 va_start(ap, format); 952 ret = vsnprintf(str, maxsize, format, ap); 953 va_end(ap); 954 return ret; 955 }], 956 [[char buf[6]; 957 if (test_vsnprintf(buf, 3, "%s", "12345") != 5 958 || strcmp(buf, "12")) return 1; 959 if (snprintf(buf, 3, "%s", "12345") != 5 960 || strcmp(buf, "12")) return 1]])], 961 [ac_cv_snprintf_returns_bogus=no], 962 [ac_cv_snprintf_returns_bogus=yes]) 963]) 964if test $ac_cv_snprintf_returns_bogus = yes; then 965 SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes 966else 967 SNPRINTF_RETURNS_BOGUS= 968fi 969GIT_CONF_SUBST([SNPRINTF_RETURNS_BOGUS]) 970# 971# Define NEEDS_MODE_TRANSLATION if your OS strays from the typical file type 972# bits in mode values. 973AC_CACHE_CHECK([whether the platform uses typical file type bits], 974 [ac_cv_sane_mode_bits], [ 975AC_EGREP_CPP(yippeeyeswehaveit, 976 AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], 977[#if S_IFMT == 0170000 && \ 978 S_IFREG == 0100000 && S_IFDIR == 0040000 && S_IFLNK == 0120000 && \ 979 S_IFBLK == 0060000 && S_IFCHR == 0020000 && \ 980 S_IFIFO == 0010000 && S_IFSOCK == 0140000 981yippeeyeswehaveit 982#endif 983]), 984 [ac_cv_sane_mode_bits=yes], 985 [ac_cv_sane_mode_bits=no]) 986]) 987if test $ac_cv_sane_mode_bits = yes; then 988 NEEDS_MODE_TRANSLATION= 989else 990 NEEDS_MODE_TRANSLATION=UnfortunatelyYes 991fi 992GIT_CONF_SUBST([NEEDS_MODE_TRANSLATION]) 993 994 995## Checks for library functions. 996## (in default C library and libraries checked by AC_CHECK_LIB) 997AC_MSG_NOTICE([CHECKS for library functions]) 998# 999# Define NO_LIBGEN_H if you don't have libgen.h.1000AC_CHECK_HEADER([libgen.h],1001[NO_LIBGEN_H=],1002[NO_LIBGEN_H=YesPlease])1003GIT_CONF_SUBST([NO_LIBGEN_H])1004#1005# Define HAVE_PATHS_H if you have paths.h.1006AC_CHECK_HEADER([paths.h],1007[HAVE_PATHS_H=YesPlease],1008[HAVE_PATHS_H=])1009GIT_CONF_SUBST([HAVE_PATHS_H])1010#1011# Define HAVE_LIBCHARSET_H if have libcharset.h1012AC_CHECK_HEADER([libcharset.h],1013[HAVE_LIBCHARSET_H=YesPlease],1014[HAVE_LIBCHARSET_H=])1015GIT_CONF_SUBST([HAVE_LIBCHARSET_H])1016#1017# Define HAVE_STRINGS_H if you have strings.h1018AC_CHECK_HEADER([strings.h],1019[HAVE_STRINGS_H=YesPlease],1020[HAVE_STRINGS_H=])1021GIT_CONF_SUBST([HAVE_STRINGS_H])1022# Define CHARSET_LIB if libiconv does not export the locale_charset symbol1023# and libcharset does1024CHARSET_LIB=1025AC_CHECK_LIB([iconv], [locale_charset],1026 [CHARSET_LIB=-liconv],1027 [AC_CHECK_LIB([charset], [locale_charset],1028 [CHARSET_LIB=-lcharset])])1029GIT_CONF_SUBST([CHARSET_LIB])1030#1031# Define HAVE_CLOCK_GETTIME=YesPlease if clock_gettime is available.1032GIT_CHECK_FUNC(clock_gettime,1033 [HAVE_CLOCK_GETTIME=YesPlease],1034 [HAVE_CLOCK_GETTIME=])1035GIT_CONF_SUBST([HAVE_CLOCK_GETTIME])10361037AC_DEFUN([CLOCK_MONOTONIC_SRC], [1038AC_LANG_PROGRAM([[1039#include <time.h>1040clockid_t id = CLOCK_MONOTONIC;1041]])])10421043#1044# Define HAVE_CLOCK_MONOTONIC=YesPlease if CLOCK_MONOTONIC is available.1045AC_MSG_CHECKING([for CLOCK_MONOTONIC])1046AC_COMPILE_IFELSE([CLOCK_MONOTONIC_SRC],1047 [AC_MSG_RESULT([yes])1048 HAVE_CLOCK_MONOTONIC=YesPlease],1049 [AC_MSG_RESULT([no])1050 HAVE_CLOCK_MONOTONIC=])1051GIT_CONF_SUBST([HAVE_CLOCK_MONOTONIC])1052#1053# Define NO_SETITIMER if you don't have setitimer.1054GIT_CHECK_FUNC(setitimer,1055[NO_SETITIMER=],1056[NO_SETITIMER=YesPlease])1057GIT_CONF_SUBST([NO_SETITIMER])1058#1059# Define NO_STRCASESTR if you don't have strcasestr.1060GIT_CHECK_FUNC(strcasestr,1061[NO_STRCASESTR=],1062[NO_STRCASESTR=YesPlease])1063GIT_CONF_SUBST([NO_STRCASESTR])1064#1065# Define NO_MEMMEM if you don't have memmem.1066GIT_CHECK_FUNC(memmem,1067[NO_MEMMEM=],1068[NO_MEMMEM=YesPlease])1069GIT_CONF_SUBST([NO_MEMMEM])1070#1071# Define NO_STRLCPY if you don't have strlcpy.1072GIT_CHECK_FUNC(strlcpy,1073[NO_STRLCPY=],1074[NO_STRLCPY=YesPlease])1075GIT_CONF_SUBST([NO_STRLCPY])1076#1077# Define NO_UINTMAX_T if your platform does not have uintmax_t1078AC_CHECK_TYPE(uintmax_t,1079[NO_UINTMAX_T=],1080[NO_UINTMAX_T=YesPlease],[1081#include <inttypes.h>1082])1083GIT_CONF_SUBST([NO_UINTMAX_T])1084#1085# Define NO_STRTOUMAX if you don't have strtoumax in the C library.1086GIT_CHECK_FUNC(strtoumax,1087[NO_STRTOUMAX=],1088[NO_STRTOUMAX=YesPlease])1089GIT_CONF_SUBST([NO_STRTOUMAX])1090#1091# Define NO_SETENV if you don't have setenv in the C library.1092GIT_CHECK_FUNC(setenv,1093[NO_SETENV=],1094[NO_SETENV=YesPlease])1095GIT_CONF_SUBST([NO_SETENV])1096#1097# Define NO_UNSETENV if you don't have unsetenv in the C library.1098GIT_CHECK_FUNC(unsetenv,1099[NO_UNSETENV=],1100[NO_UNSETENV=YesPlease])1101GIT_CONF_SUBST([NO_UNSETENV])1102#1103# Define NO_MKDTEMP if you don't have mkdtemp in the C library.1104GIT_CHECK_FUNC(mkdtemp,1105[NO_MKDTEMP=],1106[NO_MKDTEMP=YesPlease])1107GIT_CONF_SUBST([NO_MKDTEMP])1108#1109# Define NO_INITGROUPS if you don't have initgroups in the C library.1110GIT_CHECK_FUNC(initgroups,1111[NO_INITGROUPS=],1112[NO_INITGROUPS=YesPlease])1113GIT_CONF_SUBST([NO_INITGROUPS])1114#1115# Define HAVE_GETDELIM if you have getdelim in the C library.1116GIT_CHECK_FUNC(getdelim,1117[HAVE_GETDELIM=YesPlease],1118[HAVE_GETDELIM=])1119GIT_CONF_SUBST([HAVE_GETDELIM])1120#1121#1122# Define NO_MMAP if you want to avoid mmap.1123#1124# Define NO_ICONV if your libc does not properly support iconv.11251126AC_DEFUN([BSD_SYSCTL_SRC], [1127AC_LANG_PROGRAM([[1128#include <stddef.h>1129#include <sys/types.h>1130#include <sys/sysctl.h>1131]],[[1132int val, mib[2];1133size_t len;1134mib[0] = CTL_HW;1135mib[1] = 1;1136len = sizeof(val);1137return sysctl(mib, 2, &val, &len, NULL, 0) ? 1 : 0;1138]])])11391140#1141# Define HAVE_BSD_SYSCTL=YesPlease if a BSD-compatible sysctl function is available.1142AC_MSG_CHECKING([for BSD sysctl])1143AC_COMPILE_IFELSE([BSD_SYSCTL_SRC],1144 [AC_MSG_RESULT([yes])1145 HAVE_BSD_SYSCTL=YesPlease],1146 [AC_MSG_RESULT([no])1147 HAVE_BSD_SYSCTL=])1148GIT_CONF_SUBST([HAVE_BSD_SYSCTL])11491150## Other checks.1151# Define USE_PIC if you need the main git objects to be built with -fPIC1152# in order to build and link perl/Git.so. x86-64 seems to need this.1153#1154# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.1155# Enable it on Windows. By default, symrefs are still used.1156#1157# Define NO_PTHREADS if we do not have pthreads.1158#1159# Define PTHREAD_LIBS to the linker flag used for Pthread support.1160AC_DEFUN([PTHREADTEST_SRC], [1161AC_LANG_PROGRAM([[1162#include <pthread.h>1163static void *noop(void *ignore) { return ignore; }1164]], [[1165 pthread_mutex_t test_mutex;1166 pthread_key_t test_key;1167 pthread_t th;1168 int retcode = 0;1169 void *ret = (void *)0;1170 retcode |= pthread_key_create(&test_key, (void *)0);1171 retcode |= pthread_mutex_init(&test_mutex,(void *)0);1172 retcode |= pthread_mutex_lock(&test_mutex);1173 retcode |= pthread_mutex_unlock(&test_mutex);1174 retcode |= pthread_create(&th, ret, noop, ret);1175 retcode |= pthread_join(th, &ret);1176 return retcode;1177]])])11781179dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM(1180dnl [[#include <pthread.h>]],1181dnl [[pthread_mutex_t test_mutex;]]1182dnl )])11831184NO_PTHREADS=UnfortunatelyYes1185PTHREAD_LIBS=11861187if test -n "$USER_NOPTHREAD"; then1188 AC_MSG_NOTICE([Skipping POSIX Threads at user request.])1189# handle these separately since PTHREAD_CFLAGS could be '-lpthreads1190# -D_REENTRANT' or some such.1191elif test -z "$PTHREAD_CFLAGS"; then1192 threads_found=no1193 # Attempt to compile and link some code using pthreads to determine1194 # required linker flags. The order is somewhat important here: We1195 # first try it without any extra flags, to catch systems where1196 # pthreads are part of the C library, then go on testing various other1197 # flags. We do so to avoid false positives. For example, on Mac OS X1198 # pthreads are part of the C library; moreover, the compiler allows us1199 # to add "-mt" to the CFLAGS (although it will do nothing except1200 # trigger a warning about an unused flag). Hence if we checked for1201 # "-mt" before "" we would end up picking it. But unfortunately this1202 # would then trigger compiler warnings on every single file we compile.1203 for opt in "" -mt -pthread -lpthread; do1204 old_CFLAGS="$CFLAGS"1205 old_LIBS="$LIBS"1206 case "$opt" in1207 -l*) LIBS="$opt $LIBS" ;;1208 *) CFLAGS="$opt $CFLAGS" ;;1209 esac12101211 AC_MSG_CHECKING([for POSIX Threads with '$opt'])1212 AC_LINK_IFELSE([PTHREADTEST_SRC],1213 [AC_MSG_RESULT([yes])1214 NO_PTHREADS=1215 PTHREAD_LIBS="$opt"1216 PTHREAD_CFLAGS="$opt"1217 threads_found=yes1218 break1219 ],1220 [AC_MSG_RESULT([no])])1221 CFLAGS="$old_CFLAGS"1222 LIBS="$old_LIBS"1223 done1224 if test $threads_found != yes; then1225 AC_CHECK_LIB([pthread], [pthread_create],1226 [PTHREAD_LIBS="-lpthread"],1227 [NO_PTHREADS=UnfortunatelyYes])1228 fi1229else1230 old_CFLAGS="$CFLAGS"1231 CFLAGS="$PTHREAD_CFLAGS $CFLAGS"1232 AC_MSG_CHECKING([for POSIX Threads with '$PTHREAD_CFLAGS'])1233 AC_LINK_IFELSE([PTHREADTEST_SRC],1234 [AC_MSG_RESULT([yes])1235 NO_PTHREADS=1236 PTHREAD_LIBS="$PTHREAD_CFLAGS"1237 ],1238 [AC_MSG_RESULT([no])])12391240 CFLAGS="$old_CFLAGS"1241fi12421243CFLAGS="$old_CFLAGS"12441245GIT_CONF_SUBST([PTHREAD_CFLAGS])1246GIT_CONF_SUBST([PTHREAD_LIBS])1247GIT_CONF_SUBST([NO_PTHREADS])12481249## Output files1250AC_CONFIG_FILES(["${config_file}":"${config_in}"])1251AC_OUTPUT