configure.acon commit Merge branch 'jc/maint-template-permbits' (ddf4104)
   1#                                               -*- Autoconf -*-
   2# Process this file with autoconf to produce a configure script.
   3
   4AC_PREREQ(2.59)
   5AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org])
   6
   7AC_CONFIG_SRCDIR([git.c])
   8
   9config_file=config.mak.autogen
  10config_append=config.mak.append
  11config_in=config.mak.in
  12
  13echo "# ${config_append}.  Generated by configure." > "${config_append}"
  14
  15
  16## Definitions of macros
  17# GIT_CONF_APPEND_LINE(LINE)
  18# --------------------------
  19# Append LINE to file ${config_append}
  20AC_DEFUN([GIT_CONF_APPEND_LINE],
  21[echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE
  22#
  23# GIT_ARG_SET_PATH(PROGRAM)
  24# -------------------------
  25# Provide --with-PROGRAM=PATH option to set PATH to PROGRAM
  26AC_DEFUN([GIT_ARG_SET_PATH],
  27[AC_ARG_WITH([$1],
  28 [AS_HELP_STRING([--with-$1=PATH],
  29                 [provide PATH to $1])],
  30 [GIT_CONF_APPEND_PATH($1)],[])
  31])# GIT_ARG_SET_PATH
  32#
  33# GIT_CONF_APPEND_PATH(PROGRAM)
  34# ------------------------------
  35# Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH
  36# Used by GIT_ARG_SET_PATH(PROGRAM)
  37AC_DEFUN([GIT_CONF_APPEND_PATH],
  38[PROGRAM=m4_toupper($1); \
  39if test "$withval" = "no"; then \
  40        AC_MSG_ERROR([You cannot use git without $1]); \
  41else \
  42        if test "$withval" = "yes"; then \
  43                AC_MSG_WARN([You should provide path for --with-$1=PATH]); \
  44        else \
  45                GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \
  46        fi; \
  47fi; \
  48]) # GIT_CONF_APPEND_PATH
  49#
  50# GIT_PARSE_WITH(PACKAGE)
  51# -----------------------
  52# For use in AC_ARG_WITH action-if-found, for packages default ON.
  53# * Set NO_PACKAGE=YesPlease for --without-PACKAGE
  54# * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH
  55# * Unset NO_PACKAGE for --with-PACKAGE without ARG
  56AC_DEFUN([GIT_PARSE_WITH],
  57[PACKAGE=m4_toupper($1); \
  58if test "$withval" = "no"; then \
  59        m4_toupper(NO_$1)=YesPlease; \
  60elif test "$withval" = "yes"; then \
  61        m4_toupper(NO_$1)=; \
  62else \
  63        m4_toupper(NO_$1)=; \
  64        GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \
  65fi \
  66])# GIT_PARSE_WITH
  67
  68
  69## Site configuration related to programs (before tests)
  70## --with-PACKAGE[=ARG] and --without-PACKAGE
  71#
  72# Set lib to alternative name of lib directory (e.g. lib64)
  73AC_ARG_WITH([lib],
  74 [AS_HELP_STRING([--with-lib=ARG],
  75                 [ARG specifies alternative name for lib directory])],
  76 [if test "$withval" = "no" || test "$withval" = "yes"; then \
  77        AC_MSG_WARN([You should provide name for --with-lib=ARG]); \
  78else \
  79        GIT_CONF_APPEND_LINE(lib=$withval); \
  80fi; \
  81],[])
  82#
  83# Define SHELL_PATH to provide path to shell.
  84GIT_ARG_SET_PATH(shell)
  85#
  86# Define PERL_PATH to provide path to Perl.
  87GIT_ARG_SET_PATH(perl)
  88#
  89# Define ZLIB_PATH to provide path to zlib.
  90GIT_ARG_SET_PATH(zlib)
  91#
  92# Declare the with-tcltk/without-tcltk options.
  93AC_ARG_WITH(tcltk,
  94AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)])
  95AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.])
  96AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if])
  97AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\
  98GIT_PARSE_WITH(tcltk))
  99#
 100
 101
 102## Checks for programs.
 103AC_MSG_NOTICE([CHECKS for programs])
 104#
 105AC_PROG_CC([cc gcc])
 106# which switch to pass runtime path to dynamic libraries to the linker
 107AC_CACHE_CHECK([if linker supports -R], ld_dashr, [
 108   SAVE_LDFLAGS="${LDFLAGS}"
 109   LDFLAGS="${SAVE_LDFLAGS} -R /"
 110   AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_dashr=yes], [ld_dashr=no])
 111   LDFLAGS="${SAVE_LDFLAGS}"
 112])
 113if test "$ld_dashr" = "yes"; then
 114   AC_SUBST(CC_LD_DYNPATH, [-R])
 115else
 116   AC_CACHE_CHECK([if linker supports -Wl,-rpath,], ld_wl_rpath, [
 117      SAVE_LDFLAGS="${LDFLAGS}"
 118      LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/"
 119      AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_wl_rpath=yes], [ld_wl_rpath=no])
 120      LDFLAGS="${SAVE_LD_FLAGS}"
 121   ])
 122   if test "$ld_wl_rpath" = "yes"; then
 123      AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,])
 124   else
 125      AC_CACHE_CHECK([if linker supports -rpath], ld_rpath, [
 126         SAVE_LDFLAGS="${LDFLAGS}"
 127         LDFLAGS="${SAVE_LDFLAGS} -rpath /"
 128         AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_rpath=yes], [ld_rpath=no])
 129         LDFLAGS="${SAVE_LD_FLAGS}"
 130      ])
 131      if test "$ld_rpath" = "yes"; then
 132         AC_SUBST(CC_LD_DYNPATH, [-rpath])
 133      else
 134         AC_MSG_WARN([linker does not support runtime path to dynamic libraries])
 135      fi
 136   fi
 137fi
 138#AC_PROG_INSTALL                # needs install-sh or install.sh in sources
 139AC_CHECK_TOOLS(AR, [gar ar], :)
 140AC_CHECK_PROGS(TAR, [gtar tar])
 141# TCLTK_PATH will be set to some value if we want Tcl/Tk
 142# or will be empty otherwise.
 143if test -z "$NO_TCLTK"; then
 144  if test "$with_tcltk" = ""; then
 145  # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'.
 146    TCLTK_PATH=wish
 147    AC_SUBST(TCLTK_PATH)
 148  elif test "$with_tcltk" = "yes"; then
 149  # Tcl/Tk check requested.
 150    AC_CHECK_PROGS(TCLTK_PATH, [wish], )
 151  else
 152    AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk])
 153    TCLTK_PATH="$with_tcltk"
 154    AC_SUBST(TCLTK_PATH)
 155  fi
 156fi
 157AC_CHECK_PROGS(ASCIIDOC, [asciidoc])
 158if test -n "$ASCIIDOC"; then
 159        AC_MSG_CHECKING([for asciidoc version])
 160        asciidoc_version=`$ASCIIDOC --version 2>&1`
 161        case "${asciidoc_version}" in
 162        asciidoc' '8*)
 163                ASCIIDOC8=YesPlease
 164                AC_MSG_RESULT([${asciidoc_version} > 7])
 165                ;;
 166        asciidoc' '7*)
 167                ASCIIDOC8=
 168                AC_MSG_RESULT([${asciidoc_version}])
 169                ;;
 170        *)
 171                ASCIIDOC8=
 172                AC_MSG_RESULT([${asciidoc_version} (unknown)])
 173                ;;
 174        esac
 175fi
 176AC_SUBST(ASCIIDOC8)
 177
 178
 179## Checks for libraries.
 180AC_MSG_NOTICE([CHECKS for libraries])
 181#
 182# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 183# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
 184AC_CHECK_LIB([crypto], [SHA1_Init],
 185[NEEDS_SSL_WITH_CRYPTO=],
 186[AC_CHECK_LIB([ssl], [SHA1_Init],
 187 [NEEDS_SSL_WITH_CRYPTO=YesPlease
 188  NEEDS_SSL_WITH_CRYPTO=],
 189 [NO_OPENSSL=YesPlease])])
 190AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
 191AC_SUBST(NO_OPENSSL)
 192#
 193# Define NO_CURL if you do not have libcurl installed.  git-http-pull and
 194# git-http-push are not built, and you cannot use http:// and https://
 195# transports.
 196AC_CHECK_LIB([curl], [curl_global_init],
 197[NO_CURL=],
 198[NO_CURL=YesPlease])
 199AC_SUBST(NO_CURL)
 200#
 201# Define NO_EXPAT if you do not have expat installed.  git-http-push is
 202# not built, and you cannot push using http:// and https:// transports.
 203AC_CHECK_LIB([expat], [XML_ParserCreate],
 204[NO_EXPAT=],
 205[NO_EXPAT=YesPlease])
 206AC_SUBST(NO_EXPAT)
 207#
 208# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and
 209# some Solaris installations).
 210# Define NO_ICONV if neither libc nor libiconv support iconv.
 211AC_DEFUN([ICONVTEST_SRC], [
 212#include <iconv.h>
 213
 214int main(void)
 215{
 216        iconv_open("", "");
 217        return 0;
 218}
 219])
 220AC_MSG_CHECKING([for iconv in -lc])
 221AC_LINK_IFELSE(ICONVTEST_SRC,
 222        [AC_MSG_RESULT([yes])
 223        NEEDS_LIBICONV=],
 224        [AC_MSG_RESULT([no])
 225        old_LIBS="$LIBS"
 226        LIBS="$LIBS -liconv"
 227        AC_MSG_CHECKING([for iconv in -liconv])
 228        AC_LINK_IFELSE(ICONVTEST_SRC,
 229                [AC_MSG_RESULT([yes])
 230                NEEDS_LIBICONV=YesPlease],
 231                [AC_MSG_RESULT([no])
 232                NO_ICONV=YesPlease])
 233        LIBS="$old_LIBS"])
 234AC_SUBST(NEEDS_LIBICONV)
 235AC_SUBST(NO_ICONV)
 236test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv"
 237#
 238# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib.
 239AC_DEFUN([ZLIBTEST_SRC], [
 240#include <zlib.h>
 241
 242int main(void)
 243{
 244        deflateBound(0, 0);
 245        return 0;
 246}
 247])
 248AC_MSG_CHECKING([for deflateBound in -lz])
 249old_LIBS="$LIBS"
 250LIBS="$LIBS -lz"
 251AC_LINK_IFELSE(ZLIBTEST_SRC,
 252        [AC_MSG_RESULT([yes])],
 253        [AC_MSG_RESULT([no])
 254        NO_DEFLATE_BOUND=yes])
 255LIBS="$old_LIBS"
 256AC_SUBST(NO_DEFLATE_BOUND)
 257#
 258# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
 259# Patrick Mauritz).
 260AC_CHECK_LIB([c], [socket],
 261[NEEDS_SOCKET=],
 262[NEEDS_SOCKET=YesPlease])
 263AC_SUBST(NEEDS_SOCKET)
 264test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
 265
 266
 267## Checks for header files.
 268AC_MSG_NOTICE([CHECKS for header files])
 269#
 270# Define NO_SYS_SELECT_H if you don't have sys/select.h.
 271AC_CHECK_HEADER([sys/select.h],
 272[NO_SYS_SELECT_H=],
 273[NO_SYS_SELECT_H=UnfortunatelyYes])
 274AC_SUBST(NO_SYS_SELECT_H)
 275#
 276# Define OLD_ICONV if your library has an old iconv(), where the second
 277# (input buffer pointer) parameter is declared with type (const char **).
 278AC_DEFUN([OLDICONVTEST_SRC], [[
 279#include <iconv.h>
 280
 281extern size_t iconv(iconv_t cd,
 282                    char **inbuf, size_t *inbytesleft,
 283                    char **outbuf, size_t *outbytesleft);
 284
 285int main(void)
 286{
 287        return 0;
 288}
 289]])
 290AC_MSG_CHECKING([for old iconv()])
 291AC_COMPILE_IFELSE(OLDICONVTEST_SRC,
 292        [AC_MSG_RESULT([no])],
 293        [AC_MSG_RESULT([yes])
 294        OLD_ICONV=UnfortunatelyYes])
 295AC_SUBST(OLD_ICONV)
 296
 297
 298## Checks for typedefs, structures, and compiler characteristics.
 299AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
 300#
 301# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
 302AC_CHECK_MEMBER(struct dirent.d_ino,
 303[NO_D_INO_IN_DIRENT=],
 304[NO_D_INO_IN_DIRENT=YesPlease],
 305[#include <dirent.h>])
 306AC_SUBST(NO_D_INO_IN_DIRENT)
 307#
 308# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
 309# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
 310AC_CHECK_MEMBER(struct dirent.d_type,
 311[NO_D_TYPE_IN_DIRENT=],
 312[NO_D_TYPE_IN_DIRENT=YesPlease],
 313[#include <dirent.h>])
 314AC_SUBST(NO_D_TYPE_IN_DIRENT)
 315#
 316# Define NO_SOCKADDR_STORAGE if your platform does not have struct
 317# sockaddr_storage.
 318AC_CHECK_TYPE(struct sockaddr_storage,
 319[NO_SOCKADDR_STORAGE=],
 320[NO_SOCKADDR_STORAGE=YesPlease],[
 321#include <sys/types.h>
 322#include <sys/socket.h>
 323])
 324AC_SUBST(NO_SOCKADDR_STORAGE)
 325#
 326# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
 327AC_CHECK_TYPE([struct addrinfo],[
 328 AC_CHECK_FUNC([getaddrinfo],
 329  [NO_IPV6=],
 330  [NO_IPV6=YesPlease])
 331],[NO_IPV6=YesPlease],[
 332#include <sys/types.h>
 333#include <sys/socket.h>
 334#include <netdb.h>
 335])
 336AC_SUBST(NO_IPV6)
 337#
 338# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
 339# do not support the 'size specifiers' introduced by C99, namely ll, hh,
 340# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
 341# some C compilers supported these specifiers prior to C99 as an extension.
 342AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers],
 343 [ac_cv_c_c99_format],
 344[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
 345AC_RUN_IFELSE(
 346        [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
 347                [[char buf[64];
 348                if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
 349                  return 1;
 350                else if (strcmp(buf, "12345"))
 351                  return 2;]])],
 352        [ac_cv_c_c99_format=yes],
 353        [ac_cv_c_c99_format=no])
 354])
 355if test $ac_cv_c_c99_format = no; then
 356        NO_C99_FORMAT=YesPlease
 357else
 358        NO_C99_FORMAT=
 359fi
 360AC_SUBST(NO_C99_FORMAT)
 361#
 362# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds
 363# when attempting to read from an fopen'ed directory.
 364AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory],
 365 [ac_cv_fread_reads_directories],
 366[
 367AC_RUN_IFELSE(
 368        [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
 369                [[char c;
 370                FILE *f = fopen(".", "r");
 371                return f && fread(&c, 1, 1, f)]])],
 372        [ac_cv_fread_reads_directories=no],
 373        [ac_cv_fread_reads_directories=yes])
 374])
 375if test $ac_cv_fread_reads_directories = yes; then
 376        FREAD_READS_DIRECTORIES=UnfortunatelyYes
 377else
 378        FREAD_READS_DIRECTORIES=
 379fi
 380AC_SUBST(FREAD_READS_DIRECTORIES)
 381#
 382# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf()
 383# or vsnprintf() return -1 instead of number of characters which would
 384# have been written to the final string if enough space had been available.
 385AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value],
 386 [ac_cv_snprintf_returns_bogus],
 387[
 388AC_RUN_IFELSE(
 389        [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
 390                #include "stdarg.h"
 391
 392                int test_vsnprintf(char *str, size_t maxsize, const char *format, ...)
 393                {
 394                  int ret;
 395                  va_list ap;
 396                  va_start(ap, format);
 397                  ret = vsnprintf(str, maxsize, format, ap);
 398                  va_end(ap);
 399                  return ret;
 400                }],
 401                [[char buf[6];
 402                  if (test_vsnprintf(buf, 3, "%s", "12345") != 5
 403                      || strcmp(buf, "12")) return 1;
 404                  if (snprintf(buf, 3, "%s", "12345") != 5
 405                      || strcmp(buf, "12")) return 1]])],
 406        [ac_cv_snprintf_returns_bogus=no],
 407        [ac_cv_snprintf_returns_bogus=yes])
 408])
 409if test $ac_cv_snprintf_returns_bogus = yes; then
 410        SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes
 411else
 412        SNPRINTF_RETURNS_BOGUS=
 413fi
 414AC_SUBST(SNPRINTF_RETURNS_BOGUS)
 415
 416
 417## Checks for library functions.
 418## (in default C library and libraries checked by AC_CHECK_LIB)
 419AC_MSG_NOTICE([CHECKS for library functions])
 420#
 421# Define NO_STRCASESTR if you don't have strcasestr.
 422AC_CHECK_FUNC(strcasestr,
 423[NO_STRCASESTR=],
 424[NO_STRCASESTR=YesPlease])
 425AC_SUBST(NO_STRCASESTR)
 426#
 427# Define NO_MEMMEM if you don't have memmem.
 428AC_CHECK_FUNC(memmem,
 429[NO_MEMMEM=],
 430[NO_MEMMEM=YesPlease])
 431AC_SUBST(NO_MEMMEM)
 432#
 433# Define NO_STRLCPY if you don't have strlcpy.
 434AC_CHECK_FUNC(strlcpy,
 435[NO_STRLCPY=],
 436[NO_STRLCPY=YesPlease])
 437AC_SUBST(NO_STRLCPY)
 438#
 439# Define NO_STRTOUMAX if you don't have strtoumax in the C library.
 440AC_CHECK_FUNC(strtoumax,
 441[NO_STRTOUMAX=],
 442[NO_STRTOUMAX=YesPlease])
 443AC_SUBST(NO_STRTOUMAX)
 444#
 445# Define NO_SETENV if you don't have setenv in the C library.
 446AC_CHECK_FUNC(setenv,
 447[NO_SETENV=],
 448[NO_SETENV=YesPlease])
 449AC_SUBST(NO_SETENV)
 450#
 451# Define NO_UNSETENV if you don't have unsetenv in the C library.
 452AC_CHECK_FUNC(unsetenv,
 453[NO_UNSETENV=],
 454[NO_UNSETENV=YesPlease])
 455AC_SUBST(NO_UNSETENV)
 456#
 457# Define NO_MKDTEMP if you don't have mkdtemp in the C library.
 458AC_CHECK_FUNC(mkdtemp,
 459[NO_MKDTEMP=],
 460[NO_MKDTEMP=YesPlease])
 461AC_SUBST(NO_MKDTEMP)
 462#
 463# Define NO_MMAP if you want to avoid mmap.
 464#
 465# Define NO_ICONV if your libc does not properly support iconv.
 466
 467
 468## Other checks.
 469# Define USE_PIC if you need the main git objects to be built with -fPIC
 470# in order to build and link perl/Git.so.  x86-64 seems to need this.
 471#
 472# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
 473# Enable it on Windows.  By default, symrefs are still used.
 474
 475## Site configuration (override autodetection)
 476## --with-PACKAGE[=ARG] and --without-PACKAGE
 477AC_MSG_NOTICE([CHECKS for site configuration])
 478#
 479# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
 480# tests.  These tests take up a significant amount of the total test time
 481# but are not needed unless you plan to talk to SVN repos.
 482#
 483# Define MOZILLA_SHA1 environment variable when running make to make use of
 484# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
 485# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
 486# choice) has very fast version optimized for i586.
 487#
 488# Define PPC_SHA1 environment variable when running make to make use of
 489# a bundled SHA1 routine optimized for PowerPC.
 490#
 491# Define ARM_SHA1 environment variable when running make to make use of
 492# a bundled SHA1 routine optimized for ARM.
 493#
 494# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 495# This also implies MOZILLA_SHA1.
 496#
 497# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in
 498# /foo/bar/include and /foo/bar/lib directories.
 499AC_ARG_WITH(openssl,
 500AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
 501AS_HELP_STRING([],              [ARG can be prefix for openssl library and headers]),\
 502GIT_PARSE_WITH(openssl))
 503#
 504# Define NO_CURL if you do not have curl installed.  git-http-pull and
 505# git-http-push are not built, and you cannot use http:// and https://
 506# transports.
 507#
 508# Define CURLDIR=/foo/bar if your curl header and library files are in
 509# /foo/bar/include and /foo/bar/lib directories.
 510AC_ARG_WITH(curl,
 511AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)])
 512AS_HELP_STRING([],           [ARG can be also prefix for curl library and headers]),
 513GIT_PARSE_WITH(curl))
 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#
 518# Define EXPATDIR=/foo/bar if your expat header and library files are in
 519# /foo/bar/include and /foo/bar/lib directories.
 520AC_ARG_WITH(expat,
 521AS_HELP_STRING([--with-expat],
 522[support git-push using http:// and https:// transports via WebDAV (default is YES)])
 523AS_HELP_STRING([],            [ARG can be also prefix for expat library and headers]),
 524GIT_PARSE_WITH(expat))
 525#
 526# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
 527# installed in /sw, but don't want GIT to link against any libraries
 528# installed there.  If defined you may specify your own (or Fink's)
 529# include directories and library directories by defining CFLAGS
 530# and LDFLAGS appropriately.
 531#
 532# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
 533# have DarwinPorts installed in /opt/local, but don't want GIT to
 534# link against any libraries installed there.  If defined you may
 535# specify your own (or DarwinPort's) include directories and
 536# library directories by defining CFLAGS and LDFLAGS appropriately.
 537#
 538# Define NO_MMAP if you want to avoid mmap.
 539#
 540# Define NO_ICONV if your libc does not properly support iconv.
 541AC_ARG_WITH(iconv,
 542AS_HELP_STRING([--without-iconv],
 543[if your architecture doesn't properly support iconv])
 544AS_HELP_STRING([--with-iconv=PATH],
 545[PATH is prefix for libiconv library and headers])
 546AS_HELP_STRING([],
 547[used only if you need linking with libiconv]),
 548GIT_PARSE_WITH(iconv))
 549
 550## --enable-FEATURE[=ARG] and --disable-FEATURE
 551#
 552# Define USE_NSEC below if you want git to care about sub-second file mtimes
 553# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
 554# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
 555# randomly break unless your underlying filesystem supports those sub-second
 556# times (my ext3 doesn't).
 557#
 558# Define USE_STDEV below if you want git to care about the underlying device
 559# change being considered an inode change from the update-index perspective.
 560
 561
 562## Output files
 563AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
 564AC_OUTPUT
 565
 566
 567## Cleanup
 568rm -f "${config_append}"