Andrew's git - gitweb.git/blob

   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
  68dnl
  69dnl GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE)
  70dnl -----------------------------------------
  71dnl Similar to AC_CHECK_FUNC, but on systems that do not generate
  72dnl warnings for missing prototypes (e.g. FreeBSD when compiling without
  73dnl -Wall), it does not work.  By looking for function definition in
  74dnl libraries, this problem can be worked around.
  75AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[
  76  AC_SEARCH_LIBS([$1],,
  77  [$2],[$3])
  78],[$3])])
  79## Site configuration related to programs (before tests)
  80## --with-PACKAGE[=ARG] and --without-PACKAGE
  81#
  82# Set lib to alternative name of lib directory (e.g. lib64)
  83AC_ARG_WITH([lib],
  84 [AS_HELP_STRING([--with-lib=ARG],
  85                 [ARG specifies alternative name for lib directory])],
  86 [if test "$withval" = "no" || test "$withval" = "yes"; then \
  87        AC_MSG_WARN([You should provide name for --with-lib=ARG]); \
  88else \
  89        GIT_CONF_APPEND_LINE(lib=$withval); \
  90fi; \
  91],[])
  92#
  93# Define SHELL_PATH to provide path to shell.
  94GIT_ARG_SET_PATH(shell)
  95#
  96# Define PERL_PATH to provide path to Perl.
  97GIT_ARG_SET_PATH(perl)
  98#
  99# Define ZLIB_PATH to provide path to zlib.
 100GIT_ARG_SET_PATH(zlib)
 101#
 102# Declare the with-tcltk/without-tcltk options.
 103AC_ARG_WITH(tcltk,
 104AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)])
 105AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.])
 106AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if])
 107AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\
 108GIT_PARSE_WITH(tcltk))
 109#
 110
 111
 112## Checks for programs.
 113AC_MSG_NOTICE([CHECKS for programs])
 114#
 115AC_PROG_CC([cc gcc])
 116# which switch to pass runtime path to dynamic libraries to the linker
 117AC_CACHE_CHECK([if linker supports -R], ld_dashr, [
 118   SAVE_LDFLAGS="${LDFLAGS}"
 119   LDFLAGS="${SAVE_LDFLAGS} -R /"
 120   AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_dashr=yes], [ld_dashr=no])
 121   LDFLAGS="${SAVE_LDFLAGS}"
 122])
 123if test "$ld_dashr" = "yes"; then
 124   AC_SUBST(CC_LD_DYNPATH, [-R])
 125else
 126   AC_CACHE_CHECK([if linker supports -Wl,-rpath,], ld_wl_rpath, [
 127      SAVE_LDFLAGS="${LDFLAGS}"
 128      LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/"
 129      AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_wl_rpath=yes], [ld_wl_rpath=no])
 130      LDFLAGS="${SAVE_LDFLAGS}"
 131   ])
 132   if test "$ld_wl_rpath" = "yes"; then
 133      AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,])
 134   else
 135      AC_CACHE_CHECK([if linker supports -rpath], ld_rpath, [
 136         SAVE_LDFLAGS="${LDFLAGS}"
 137         LDFLAGS="${SAVE_LDFLAGS} -rpath /"
 138         AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [ld_rpath=yes], [ld_rpath=no])
 139         LDFLAGS="${SAVE_LDFLAGS}"
 140      ])
 141      if test "$ld_rpath" = "yes"; then
 142         AC_SUBST(CC_LD_DYNPATH, [-rpath])
 143      else
 144         AC_MSG_WARN([linker does not support runtime path to dynamic libraries])
 145      fi
 146   fi
 147fi
 148#AC_PROG_INSTALL                # needs install-sh or install.sh in sources
 149AC_CHECK_TOOLS(AR, [gar ar], :)
 150AC_CHECK_PROGS(TAR, [gtar tar])
 151# TCLTK_PATH will be set to some value if we want Tcl/Tk
 152# or will be empty otherwise.
 153if test -z "$NO_TCLTK"; then
 154  if test "$with_tcltk" = ""; then
 155  # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'.
 156    TCLTK_PATH=wish
 157    AC_SUBST(TCLTK_PATH)
 158  elif test "$with_tcltk" = "yes"; then
 159  # Tcl/Tk check requested.
 160    AC_CHECK_PROGS(TCLTK_PATH, [wish], )
 161  else
 162    AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk])
 163    TCLTK_PATH="$with_tcltk"
 164    AC_SUBST(TCLTK_PATH)
 165  fi
 166fi
 167AC_CHECK_PROGS(ASCIIDOC, [asciidoc])
 168if test -n "$ASCIIDOC"; then
 169        AC_MSG_CHECKING([for asciidoc version])
 170        asciidoc_version=`$ASCIIDOC --version 2>&1`
 171        case "${asciidoc_version}" in
 172        asciidoc' '8*)
 173                ASCIIDOC8=YesPlease
 174                AC_MSG_RESULT([${asciidoc_version} > 7])
 175                ;;
 176        asciidoc' '7*)
 177                ASCIIDOC8=
 178                AC_MSG_RESULT([${asciidoc_version}])
 179                ;;
 180        *)
 181                ASCIIDOC8=
 182                AC_MSG_RESULT([${asciidoc_version} (unknown)])
 183                ;;
 184        esac
 185fi
 186AC_SUBST(ASCIIDOC8)
 187
 188
 189## Checks for libraries.
 190AC_MSG_NOTICE([CHECKS for libraries])
 191#
 192# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 193# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
 194AC_CHECK_LIB([crypto], [SHA1_Init],
 195[NEEDS_SSL_WITH_CRYPTO=],
 196[AC_CHECK_LIB([ssl], [SHA1_Init],
 197 [NEEDS_SSL_WITH_CRYPTO=YesPlease
 198  NEEDS_SSL_WITH_CRYPTO=],
 199 [NO_OPENSSL=YesPlease])])
 200AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
 201AC_SUBST(NO_OPENSSL)
 202#
 203# Define NO_CURL if you do not have libcurl installed.  git-http-pull and
 204# git-http-push are not built, and you cannot use http:// and https://
 205# transports.
 206AC_CHECK_LIB([curl], [curl_global_init],
 207[NO_CURL=],
 208[NO_CURL=YesPlease])
 209AC_SUBST(NO_CURL)
 210#
 211# Define NO_EXPAT if you do not have expat installed.  git-http-push is
 212# not built, and you cannot push using http:// and https:// transports.
 213AC_CHECK_LIB([expat], [XML_ParserCreate],
 214[NO_EXPAT=],
 215[NO_EXPAT=YesPlease])
 216AC_SUBST(NO_EXPAT)
 217#
 218# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and
 219# some Solaris installations).
 220# Define NO_ICONV if neither libc nor libiconv support iconv.
 221AC_DEFUN([ICONVTEST_SRC], [
 222#include <iconv.h>
 223
 224int main(void)
 225{
 226        iconv_open("", "");
 227        return 0;
 228}
 229])
 230AC_MSG_CHECKING([for iconv in -lc])
 231AC_LINK_IFELSE(ICONVTEST_SRC,
 232        [AC_MSG_RESULT([yes])
 233        NEEDS_LIBICONV=],
 234        [AC_MSG_RESULT([no])
 235        old_LIBS="$LIBS"
 236        LIBS="$LIBS -liconv"
 237        AC_MSG_CHECKING([for iconv in -liconv])
 238        AC_LINK_IFELSE(ICONVTEST_SRC,
 239                [AC_MSG_RESULT([yes])
 240                NEEDS_LIBICONV=YesPlease],
 241                [AC_MSG_RESULT([no])
 242                NO_ICONV=YesPlease])
 243        LIBS="$old_LIBS"])
 244AC_SUBST(NEEDS_LIBICONV)
 245AC_SUBST(NO_ICONV)
 246test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv"
 247#
 248# Define NO_DEFLATE_BOUND if deflateBound is missing from zlib.
 249AC_DEFUN([ZLIBTEST_SRC], [
 250#include <zlib.h>
 251
 252int main(void)
 253{
 254        deflateBound(0, 0);
 255        return 0;
 256}
 257])
 258AC_MSG_CHECKING([for deflateBound in -lz])
 259old_LIBS="$LIBS"
 260LIBS="$LIBS -lz"
 261AC_LINK_IFELSE(ZLIBTEST_SRC,
 262        [AC_MSG_RESULT([yes])],
 263        [AC_MSG_RESULT([no])
 264        NO_DEFLATE_BOUND=yes])
 265LIBS="$old_LIBS"
 266AC_SUBST(NO_DEFLATE_BOUND)
 267#
 268# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
 269# Patrick Mauritz).
 270AC_CHECK_LIB([c], [socket],
 271[NEEDS_SOCKET=],
 272[NEEDS_SOCKET=YesPlease])
 273AC_SUBST(NEEDS_SOCKET)
 274test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
 275
 276
 277## Checks for header files.
 278AC_MSG_NOTICE([CHECKS for header files])
 279#
 280# Define NO_SYS_SELECT_H if you don't have sys/select.h.
 281AC_CHECK_HEADER([sys/select.h],
 282[NO_SYS_SELECT_H=],
 283[NO_SYS_SELECT_H=UnfortunatelyYes])
 284AC_SUBST(NO_SYS_SELECT_H)
 285#
 286# Define OLD_ICONV if your library has an old iconv(), where the second
 287# (input buffer pointer) parameter is declared with type (const char **).
 288AC_DEFUN([OLDICONVTEST_SRC], [[
 289#include <iconv.h>
 290
 291extern size_t iconv(iconv_t cd,
 292                    char **inbuf, size_t *inbytesleft,
 293                    char **outbuf, size_t *outbytesleft);
 294
 295int main(void)
 296{
 297        return 0;
 298}
 299]])
 300AC_MSG_CHECKING([for old iconv()])
 301AC_COMPILE_IFELSE(OLDICONVTEST_SRC,
 302        [AC_MSG_RESULT([no])],
 303        [AC_MSG_RESULT([yes])
 304        OLD_ICONV=UnfortunatelyYes])
 305AC_SUBST(OLD_ICONV)
 306
 307
 308## Checks for typedefs, structures, and compiler characteristics.
 309AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
 310#
 311# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
 312AC_CHECK_MEMBER(struct dirent.d_ino,
 313[NO_D_INO_IN_DIRENT=],
 314[NO_D_INO_IN_DIRENT=YesPlease],
 315[#include <dirent.h>])
 316AC_SUBST(NO_D_INO_IN_DIRENT)
 317#
 318# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
 319# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
 320AC_CHECK_MEMBER(struct dirent.d_type,
 321[NO_D_TYPE_IN_DIRENT=],
 322[NO_D_TYPE_IN_DIRENT=YesPlease],
 323[#include <dirent.h>])
 324AC_SUBST(NO_D_TYPE_IN_DIRENT)
 325#
 326# Define NO_SOCKADDR_STORAGE if your platform does not have struct
 327# sockaddr_storage.
 328AC_CHECK_TYPE(struct sockaddr_storage,
 329[NO_SOCKADDR_STORAGE=],
 330[NO_SOCKADDR_STORAGE=YesPlease],[
 331#include <sys/types.h>
 332#include <sys/socket.h>
 333])
 334AC_SUBST(NO_SOCKADDR_STORAGE)
 335#
 336# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
 337AC_CHECK_TYPE([struct addrinfo],[
 338 GIT_CHECK_FUNC([getaddrinfo],
 339  [NO_IPV6=],
 340  [NO_IPV6=YesPlease])
 341],[NO_IPV6=YesPlease],[
 342#include <sys/types.h>
 343#include <sys/socket.h>
 344#include <netdb.h>
 345])
 346AC_SUBST(NO_IPV6)
 347#
 348# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
 349# do not support the 'size specifiers' introduced by C99, namely ll, hh,
 350# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
 351# some C compilers supported these specifiers prior to C99 as an extension.
 352AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers],
 353 [ac_cv_c_c99_format],
 354[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
 355AC_RUN_IFELSE(
 356        [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
 357                [[char buf[64];
 358                if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
 359                  return 1;
 360                else if (strcmp(buf, "12345"))
 361                  return 2;]])],
 362        [ac_cv_c_c99_format=yes],
 363        [ac_cv_c_c99_format=no])
 364])
 365if test $ac_cv_c_c99_format = no; then
 366        NO_C99_FORMAT=YesPlease
 367else
 368        NO_C99_FORMAT=
 369fi
 370AC_SUBST(NO_C99_FORMAT)
 371#
 372# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds
 373# when attempting to read from an fopen'ed directory.
 374AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory],
 375 [ac_cv_fread_reads_directories],
 376[
 377AC_RUN_IFELSE(
 378        [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
 379                [[char c;
 380                FILE *f = fopen(".", "r");
 381                return f && fread(&c, 1, 1, f)]])],
 382        [ac_cv_fread_reads_directories=no],
 383        [ac_cv_fread_reads_directories=yes])
 384])
 385if test $ac_cv_fread_reads_directories = yes; then
 386        FREAD_READS_DIRECTORIES=UnfortunatelyYes
 387else
 388        FREAD_READS_DIRECTORIES=
 389fi
 390AC_SUBST(FREAD_READS_DIRECTORIES)
 391#
 392# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf()
 393# or vsnprintf() return -1 instead of number of characters which would
 394# have been written to the final string if enough space had been available.
 395AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value],
 396 [ac_cv_snprintf_returns_bogus],
 397[
 398AC_RUN_IFELSE(
 399        [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
 400                #include "stdarg.h"
 401
 402                int test_vsnprintf(char *str, size_t maxsize, const char *format, ...)
 403                {
 404                  int ret;
 405                  va_list ap;
 406                  va_start(ap, format);
 407                  ret = vsnprintf(str, maxsize, format, ap);
 408                  va_end(ap);
 409                  return ret;
 410                }],
 411                [[char buf[6];
 412                  if (test_vsnprintf(buf, 3, "%s", "12345") != 5
 413                      || strcmp(buf, "12")) return 1;
 414                  if (snprintf(buf, 3, "%s", "12345") != 5
 415                      || strcmp(buf, "12")) return 1]])],
 416        [ac_cv_snprintf_returns_bogus=no],
 417        [ac_cv_snprintf_returns_bogus=yes])
 418])
 419if test $ac_cv_snprintf_returns_bogus = yes; then
 420        SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes
 421else
 422        SNPRINTF_RETURNS_BOGUS=
 423fi
 424AC_SUBST(SNPRINTF_RETURNS_BOGUS)
 425
 426
 427## Checks for library functions.
 428## (in default C library and libraries checked by AC_CHECK_LIB)
 429AC_MSG_NOTICE([CHECKS for library functions])
 430#
 431# Define NO_STRCASESTR if you don't have strcasestr.
 432GIT_CHECK_FUNC(strcasestr,
 433[NO_STRCASESTR=],
 434[NO_STRCASESTR=YesPlease])
 435AC_SUBST(NO_STRCASESTR)
 436#
 437# Define NO_MEMMEM if you don't have memmem.
 438GIT_CHECK_FUNC(memmem,
 439[NO_MEMMEM=],
 440[NO_MEMMEM=YesPlease])
 441AC_SUBST(NO_MEMMEM)
 442#
 443# Define NO_STRLCPY if you don't have strlcpy.
 444GIT_CHECK_FUNC(strlcpy,
 445[NO_STRLCPY=],
 446[NO_STRLCPY=YesPlease])
 447AC_SUBST(NO_STRLCPY)
 448#
 449# Define NO_UINTMAX_T if your platform does not have uintmax_t
 450AC_CHECK_TYPE(uintmax_t,
 451[NO_UINTMAX_T=],
 452[NO_UINTMAX_T=YesPlease],[
 453#include <inttypes.h>
 454])
 455AC_SUBST(NO_UINTMAX_T)
 456#
 457# Define NO_STRTOUMAX if you don't have strtoumax in the C library.
 458GIT_CHECK_FUNC(strtoumax,
 459[NO_STRTOUMAX=],
 460[NO_STRTOUMAX=YesPlease])
 461AC_SUBST(NO_STRTOUMAX)
 462#
 463# Define NO_SETENV if you don't have setenv in the C library.
 464GIT_CHECK_FUNC(setenv,
 465[NO_SETENV=],
 466[NO_SETENV=YesPlease])
 467AC_SUBST(NO_SETENV)
 468#
 469# Define NO_UNSETENV if you don't have unsetenv in the C library.
 470GIT_CHECK_FUNC(unsetenv,
 471[NO_UNSETENV=],
 472[NO_UNSETENV=YesPlease])
 473AC_SUBST(NO_UNSETENV)
 474#
 475# Define NO_MKDTEMP if you don't have mkdtemp in the C library.
 476GIT_CHECK_FUNC(mkdtemp,
 477[NO_MKDTEMP=],
 478[NO_MKDTEMP=YesPlease])
 479AC_SUBST(NO_MKDTEMP)
 480#
 481# Define NO_MMAP if you want to avoid mmap.
 482#
 483# Define NO_ICONV if your libc does not properly support iconv.
 484
 485
 486## Other checks.
 487# Define USE_PIC if you need the main git objects to be built with -fPIC
 488# in order to build and link perl/Git.so.  x86-64 seems to need this.
 489#
 490# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
 491# Enable it on Windows.  By default, symrefs are still used.
 492#
 493# Define NO_PTHREADS if we do not have pthreads
 494#
 495# Define PTHREAD_LIBS to the linker flag used for Pthread support.
 496AC_LANG_CONFTEST([AC_LANG_PROGRAM(
 497  [[#include <pthread.h>]],
 498  [[pthread_mutex_t test_mutex;]]
 499)])
 500${CC} -pthread conftest.c -o conftest.o > /dev/null 2>&1
 501if test $? -eq 0;then
 502 PTHREAD_LIBS="-pthread"
 503else
 504 ${CC} -lpthread conftest.c -o conftest.o > /dev/null 2>&1
 505 if test $? -eq 0;then
 506  PTHREAD_LIBS="-lpthread"
 507 else
 508  NO_PTHREADS=UnfortunatelyYes
 509 fi
 510fi
 511AC_SUBST(PTHREAD_LIBS)
 512AC_SUBST(NO_PTHREADS)
 513
 514## Site configuration (override autodetection)
 515## --with-PACKAGE[=ARG] and --without-PACKAGE
 516AC_MSG_NOTICE([CHECKS for site configuration])
 517#
 518# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
 519# tests.  These tests take up a significant amount of the total test time
 520# but are not needed unless you plan to talk to SVN repos.
 521#
 522# Define MOZILLA_SHA1 environment variable when running make to make use of
 523# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
 524# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
 525# choice) has very fast version optimized for i586.
 526#
 527# Define PPC_SHA1 environment variable when running make to make use of
 528# a bundled SHA1 routine optimized for PowerPC.
 529#
 530# Define ARM_SHA1 environment variable when running make to make use of
 531# a bundled SHA1 routine optimized for ARM.
 532#
 533# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 534# This also implies MOZILLA_SHA1.
 535#
 536# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in
 537# /foo/bar/include and /foo/bar/lib directories.
 538AC_ARG_WITH(openssl,
 539AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
 540AS_HELP_STRING([],              [ARG can be prefix for openssl library and headers]),\
 541GIT_PARSE_WITH(openssl))
 542#
 543# Define NO_CURL if you do not have curl installed.  git-http-pull and
 544# git-http-push are not built, and you cannot use http:// and https://
 545# transports.
 546#
 547# Define CURLDIR=/foo/bar if your curl header and library files are in
 548# /foo/bar/include and /foo/bar/lib directories.
 549AC_ARG_WITH(curl,
 550AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)])
 551AS_HELP_STRING([],           [ARG can be also prefix for curl library and headers]),
 552GIT_PARSE_WITH(curl))
 553#
 554# Define NO_EXPAT if you do not have expat installed.  git-http-push is
 555# not built, and you cannot push using http:// and https:// transports.
 556#
 557# Define EXPATDIR=/foo/bar if your expat header and library files are in
 558# /foo/bar/include and /foo/bar/lib directories.
 559AC_ARG_WITH(expat,
 560AS_HELP_STRING([--with-expat],
 561[support git-push using http:// and https:// transports via WebDAV (default is YES)])
 562AS_HELP_STRING([],            [ARG can be also prefix for expat library and headers]),
 563GIT_PARSE_WITH(expat))
 564#
 565# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
 566# installed in /sw, but don't want GIT to link against any libraries
 567# installed there.  If defined you may specify your own (or Fink's)
 568# include directories and library directories by defining CFLAGS
 569# and LDFLAGS appropriately.
 570#
 571# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
 572# have DarwinPorts installed in /opt/local, but don't want GIT to
 573# link against any libraries installed there.  If defined you may
 574# specify your own (or DarwinPort's) include directories and
 575# library directories by defining CFLAGS and LDFLAGS appropriately.
 576#
 577# Define NO_MMAP if you want to avoid mmap.
 578#
 579# Define NO_ICONV if your libc does not properly support iconv.
 580AC_ARG_WITH(iconv,
 581AS_HELP_STRING([--without-iconv],
 582[if your architecture doesn't properly support iconv])
 583AS_HELP_STRING([--with-iconv=PATH],
 584[PATH is prefix for libiconv library and headers])
 585AS_HELP_STRING([],
 586[used only if you need linking with libiconv]),
 587GIT_PARSE_WITH(iconv))
 588
 589## --enable-FEATURE[=ARG] and --disable-FEATURE
 590#
 591# Define USE_NSEC below if you want git to care about sub-second file mtimes
 592# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
 593# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
 594# randomly break unless your underlying filesystem supports those sub-second
 595# times (my ext3 doesn't).
 596#
 597# Define USE_STDEV below if you want git to care about the underlying device
 598# change being considered an inode change from the update-index perspective.
 599
 600
 601## Output files
 602AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
 603AC_OUTPUT
 604
 605
 606## Cleanup
 607rm -f "${config_append}"