configure.acon commit Merge branch 'cc/branch-test' (51b2dd4)
   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=$withval); \
  65fi \
  66])# GIT_PARSE_WITH
  67
  68
  69## Site configuration related to programs (before tests)
  70## --with-PACKAGE[=ARG] and --without-PACKAGE
  71#
  72# Define SHELL_PATH to provide path to shell.
  73GIT_ARG_SET_PATH(shell)
  74#
  75# Define PERL_PATH to provide path to Perl.
  76GIT_ARG_SET_PATH(perl)
  77#
  78# Define PYTHON_PATH to provide path to Python.
  79AC_ARG_WITH(python,[AS_HELP_STRING([--with-python=PATH], [provide PATH to python])
  80AS_HELP_STRING([--without-python], [don't use python scripts])],
  81 [if test "$withval" = "no"; then \
  82    NO_PYTHON=YesPlease; \
  83  elif test "$withval" = "yes"; then \
  84    NO_PYTHON=; \
  85  else \
  86    NO_PYTHON=; \
  87    PYTHON_PATH=$withval; \
  88  fi; \
  89 ])
  90AC_SUBST(NO_PYTHON)
  91AC_SUBST(PYTHON_PATH)
  92
  93
  94## Checks for programs.
  95AC_MSG_NOTICE([CHECKS for programs])
  96#
  97AC_PROG_CC
  98#AC_PROG_INSTALL                # needs install-sh or install.sh in sources
  99AC_CHECK_TOOL(AR, ar, :)
 100AC_CHECK_PROGS(TAR, [gtar tar])
 101#
 102# Define PYTHON_PATH to provide path to Python.
 103if test -z "$NO_PYTHON"; then
 104        if test -z "$PYTHON_PATH"; then
 105                AC_PATH_PROGS(PYTHON_PATH, [python python2.4 python2.3 python2])
 106        fi
 107        if test -n "$PYTHON_PATH"; then
 108                GIT_CONF_APPEND_LINE([PYTHON_PATH=@PYTHON_PATH@])
 109                NO_PYTHON=""
 110        fi
 111fi
 112
 113
 114## Checks for libraries.
 115AC_MSG_NOTICE([CHECKS for libraries])
 116#
 117# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 118# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
 119AC_CHECK_LIB([crypto], [SHA1_Init],
 120[NEEDS_SSL_WITH_CRYPTO=],
 121[AC_CHECK_LIB([ssl], [SHA1_Init],
 122 [NEEDS_SSL_WITH_CRYPTO=YesPlease
 123  NEEDS_SSL_WITH_CRYPTO=],
 124 [NO_OPENSSL=YesPlease])])
 125AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
 126AC_SUBST(NO_OPENSSL)
 127#
 128# Define NO_CURL if you do not have curl installed.  git-http-pull and
 129# git-http-push are not built, and you cannot use http:// and https://
 130# transports.
 131AC_CHECK_LIB([curl], [curl_global_init],
 132[NO_CURL=],
 133[NO_CURL=YesPlease])
 134AC_SUBST(NO_CURL)
 135#
 136# Define NO_EXPAT if you do not have expat installed.  git-http-push is
 137# not built, and you cannot push using http:// and https:// transports.
 138AC_CHECK_LIB([expat], [XML_ParserCreate],
 139[NO_EXPAT=],
 140[NO_EXPAT=YesPlease])
 141AC_SUBST(NO_EXPAT)
 142#
 143# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
 144# Define NO_ICONV if neither libc nor libiconv support iconv.
 145AC_CHECK_LIB([c], [iconv],
 146        [NEEDS_LIBICONV=],
 147        AC_CHECK_LIB([iconv], [iconv],
 148                [NEEDS_LIBICONV=YesPlease],
 149                [NO_ICONV=YesPlease]))
 150AC_SUBST(NEEDS_LIBICONV)
 151AC_SUBST(NO_ICONV)
 152test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv"
 153#
 154# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
 155# Patrick Mauritz).
 156AC_CHECK_LIB([c], [socket],
 157[NEEDS_SOCKET=],
 158[NEEDS_SOCKET=YesPlease])
 159AC_SUBST(NEEDS_SOCKET)
 160test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
 161
 162
 163## Checks for header files.
 164
 165
 166## Checks for typedefs, structures, and compiler characteristics.
 167AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
 168#
 169# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
 170AC_CHECK_MEMBER(struct dirent.d_ino,
 171[NO_D_INO_IN_DIRENT=],
 172[NO_D_INO_IN_DIRENT=YesPlease],
 173[#include <dirent.h>])
 174AC_SUBST(NO_D_INO_IN_DIRENT)
 175#
 176# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
 177# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
 178AC_CHECK_MEMBER(struct dirent.d_type,
 179[NO_D_TYPE_IN_DIRENT=],
 180[NO_D_TYPE_IN_DIRENT=YesPlease],
 181[#include <dirent.h>])
 182AC_SUBST(NO_D_TYPE_IN_DIRENT)
 183#
 184# Define NO_SOCKADDR_STORAGE if your platform does not have struct
 185# sockaddr_storage.
 186AC_CHECK_TYPE(struct sockaddr_storage,
 187[NO_SOCKADDR_STORAGE=],
 188[NO_SOCKADDR_STORAGE=YesPlease],[
 189#include <sys/types.h>
 190#include <sys/socket.h>
 191])
 192AC_SUBST(NO_SOCKADDR_STORAGE)
 193#
 194# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
 195AC_CHECK_TYPE([struct addrinfo],[
 196 AC_CHECK_FUNC([getaddrinfo],
 197  [NO_IPV6=],
 198  [NO_IPV6=YesPlease])
 199],[NO_IPV6=YesPlease],[
 200#include <sys/types.h>
 201#include <sys/socket.h>
 202#include <netdb.h>
 203])
 204AC_SUBST(NO_IPV6)
 205#
 206# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
 207# do not support the 'size specifiers' introduced by C99, namely ll, hh,
 208# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
 209# some C compilers supported these specifiers prior to C99 as an extension.
 210AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers],
 211 [ac_cv_c_c99_format],
 212[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
 213AC_RUN_IFELSE(
 214        [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
 215                [[char buf[64];
 216                if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
 217                  exit(1);
 218                else if (strcmp(buf, "12345"))
 219                  exit(2);]])],
 220        [ac_cv_c_c99_format=yes],
 221        [ac_cv_c_c99_format=no])
 222])
 223if test $ac_cv_c_c99_format = no; then
 224        NO_C99_FORMAT=YesPlease
 225else
 226        NO_C99_FORMAT=
 227fi
 228AC_SUBST(NO_C99_FORMAT)
 229
 230
 231## Checks for library functions.
 232## (in default C library and libraries checked by AC_CHECK_LIB)
 233AC_MSG_NOTICE([CHECKS for library functions])
 234#
 235# Define NO_STRCASESTR if you don't have strcasestr.
 236AC_CHECK_FUNC(strcasestr,
 237[NO_STRCASESTR=],
 238[NO_STRCASESTR=YesPlease])
 239AC_SUBST(NO_STRCASESTR)
 240#
 241# Define NO_STRLCPY if you don't have strlcpy.
 242AC_CHECK_FUNC(strlcpy,
 243[NO_STRLCPY=],
 244[NO_STRLCPY=YesPlease])
 245AC_SUBST(NO_STRLCPY)
 246#
 247# Define NO_SETENV if you don't have setenv in the C library.
 248AC_CHECK_FUNC(setenv,
 249[NO_SETENV=],
 250[NO_SETENV=YesPlease])
 251AC_SUBST(NO_SETENV)
 252#
 253# Define NO_MMAP if you want to avoid mmap.
 254#
 255# Define NO_ICONV if your libc does not properly support iconv.
 256
 257
 258## Other checks.
 259# Define USE_PIC if you need the main git objects to be built with -fPIC
 260# in order to build and link perl/Git.so.  x86-64 seems to need this.
 261#
 262# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
 263# Enable it on Windows.  By default, symrefs are still used.
 264#
 265# Define WITH_OWN_SUBPROCESS_PY if you want to use with python 2.3.
 266AC_CACHE_CHECK([for subprocess.py],
 267 [ac_cv_python_has_subprocess_py],
 268[if $PYTHON_PATH -c 'import subprocess' 2>/dev/null; then
 269        ac_cv_python_has_subprocess_py=yes
 270else
 271        ac_cv_python_has_subprocess_py=no
 272fi])
 273if test $ac_cv_python_has_subprocess_py != yes; then
 274        GIT_CONF_APPEND_LINE([WITH_OWN_SUBPROCESS_PY=YesPlease])
 275fi
 276#
 277# Define NO_ACCURATE_DIFF if your diff program at least sometimes misses
 278# a missing newline at the end of the file.
 279
 280
 281## Site configuration (override autodetection)
 282## --with-PACKAGE[=ARG] and --without-PACKAGE
 283AC_MSG_NOTICE([CHECKS for site configuration])
 284#
 285# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
 286# tests.  These tests take up a significant amount of the total test time
 287# but are not needed unless you plan to talk to SVN repos.
 288#
 289# Define MOZILLA_SHA1 environment variable when running make to make use of
 290# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
 291# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
 292# choice) has very fast version optimized for i586.
 293#
 294# Define PPC_SHA1 environment variable when running make to make use of
 295# a bundled SHA1 routine optimized for PowerPC.
 296#
 297# Define ARM_SHA1 environment variable when running make to make use of
 298# a bundled SHA1 routine optimized for ARM.
 299#
 300# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 301# This also implies MOZILLA_SHA1.
 302#
 303# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in
 304# /foo/bar/include and /foo/bar/lib directories.
 305AC_ARG_WITH(openssl,
 306AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
 307AS_HELP_STRING([],              [ARG can be prefix for openssl library and headers]),\
 308GIT_PARSE_WITH(openssl))
 309#
 310# Define NO_CURL if you do not have curl installed.  git-http-pull and
 311# git-http-push are not built, and you cannot use http:// and https://
 312# transports.
 313#
 314# Define CURLDIR=/foo/bar if your curl header and library files are in
 315# /foo/bar/include and /foo/bar/lib directories.
 316AC_ARG_WITH(curl,
 317AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)])
 318AS_HELP_STRING([],           [ARG can be also prefix for curl library and headers]),
 319GIT_PARSE_WITH(curl))
 320#
 321# Define NO_EXPAT if you do not have expat installed.  git-http-push is
 322# not built, and you cannot push using http:// and https:// transports.
 323#
 324# Define EXPATDIR=/foo/bar if your expat header and library files are in
 325# /foo/bar/include and /foo/bar/lib directories.
 326AC_ARG_WITH(expat,
 327AS_HELP_STRING([--with-expat],
 328[support git-push using http:// and https:// transports via WebDAV (default is YES)])
 329AS_HELP_STRING([],            [ARG can be also prefix for expat library and headers]),
 330GIT_PARSE_WITH(expat))
 331#
 332# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
 333# installed in /sw, but don't want GIT to link against any libraries
 334# installed there.  If defined you may specify your own (or Fink's)
 335# include directories and library directories by defining CFLAGS
 336# and LDFLAGS appropriately.
 337#
 338# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
 339# have DarwinPorts installed in /opt/local, but don't want GIT to
 340# link against any libraries installed there.  If defined you may
 341# specify your own (or DarwinPort's) include directories and
 342# library directories by defining CFLAGS and LDFLAGS appropriately.
 343#
 344# Define NO_MMAP if you want to avoid mmap.
 345#
 346# Define NO_ICONV if your libc does not properly support iconv.
 347AC_ARG_WITH(iconv,
 348AS_HELP_STRING([--without-iconv],
 349[if your architecture doesn't properly support iconv])
 350AS_HELP_STRING([--with-iconv=PATH],
 351[PATH is prefix for libiconv library and headers])
 352AS_HELP_STRING([],
 353[used only if you need linking with libiconv]),
 354GIT_PARSE_WITH(iconv))
 355
 356## --enable-FEATURE[=ARG] and --disable-FEATURE
 357#
 358# Define COLLISION_CHECK below if you believe that SHA1's
 359# 1461501637330902918203684832716283019655932542976 hashes do not give you
 360# sufficient guarantee that no collisions between objects will ever happen.
 361#
 362# Define USE_NSEC below if you want git to care about sub-second file mtimes
 363# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
 364# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
 365# randomly break unless your underlying filesystem supports those sub-second
 366# times (my ext3 doesn't).
 367#
 368# Define USE_STDEV below if you want git to care about the underlying device
 369# change being considered an inode change from the update-cache perspective.
 370
 371
 372## Output files
 373AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
 374AC_OUTPUT
 375
 376
 377## Cleanup
 378rm -f "${config_append}"