configure.acon commit Merge branch 'maint' (500a999)
   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=$withval); \
  65fi \
  66])# GIT_PARSE_WITH
  67
  68
  69## Site configuration related to programs (before tests)
  70## --with-PACKAGE[=ARG] and --without-PACKAGE
  71#
  72# Define SHELL_PATH to provide path to shell.
  73GIT_ARG_SET_PATH(shell)
  74#
  75# Define PERL_PATH to provide path to Perl.
  76GIT_ARG_SET_PATH(perl)
  77#
  78# Define NO_PYTHON if you want to lose all benefits of the recursive merge.
  79# Define PYTHON_PATH to provide path to Python.
  80AC_ARG_WITH(python,[AS_HELP_STRING([--with-python=PATH], [provide PATH to python])
  81AS_HELP_STRING([--without-python], [don't use python scripts])],
  82 [if test "$withval" = "no"; then \
  83    NO_PYTHON=YesPlease; \
  84  elif test "$withval" = "yes"; then \
  85    NO_PYTHON=; \
  86  else \
  87    NO_PYTHON=; \
  88    PYTHON_PATH=$withval; \
  89  fi; \
  90 ])
  91AC_SUBST(NO_PYTHON)
  92AC_SUBST(PYTHON_PATH)
  93
  94
  95## Checks for programs.
  96AC_MSG_NOTICE([CHECKS for programs])
  97#
  98AC_PROG_CC
  99#AC_PROG_INSTALL                # needs install-sh or install.sh in sources
 100AC_CHECK_TOOL(AR, ar, :)
 101AC_CHECK_PROGS(TAR, [gtar tar])
 102#
 103# Define NO_PYTHON if you want to lose all benefits of the recursive merge.
 104# Define PYTHON_PATH to provide path to Python.
 105if test -z "$NO_PYTHON"; then
 106        if test -z "$PYTHON_PATH"; then
 107                AC_PATH_PROGS(PYTHON_PATH, [python python2.4 python2.3 python2])
 108        fi
 109        if test -n "$PYTHON_PATH"; then
 110                GIT_CONF_APPEND_LINE([PYTHON_PATH=@PYTHON_PATH@])
 111                NO_PYTHON=""
 112        fi
 113fi
 114
 115
 116## Checks for libraries.
 117AC_MSG_NOTICE([CHECKS for libraries])
 118#
 119# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 120# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
 121AC_CHECK_LIB([crypto], [SHA1_Init],
 122[NEEDS_SSL_WITH_CRYPTO=],
 123[AC_CHECK_LIB([ssl], [SHA1_Init],
 124 [NEEDS_SSL_WITH_CRYPTO=YesPlease
 125  NEEDS_SSL_WITH_CRYPTO=],
 126 [NO_OPENSSL=YesPlease])])
 127AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
 128AC_SUBST(NO_OPENSSL)
 129#
 130# Define NO_CURL if you do not have curl installed.  git-http-pull and
 131# git-http-push are not built, and you cannot use http:// and https://
 132# transports.
 133AC_CHECK_LIB([curl], [curl_global_init],
 134[NO_CURL=],
 135[NO_CURL=YesPlease])
 136AC_SUBST(NO_CURL)
 137#
 138# Define NO_EXPAT if you do not have expat installed.  git-http-push is
 139# not built, and you cannot push using http:// and https:// transports.
 140AC_CHECK_LIB([expat], [XML_ParserCreate],
 141[NO_EXPAT=],
 142[NO_EXPAT=YesPlease])
 143AC_SUBST(NO_EXPAT)
 144#
 145# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
 146AC_CHECK_LIB([c], [iconv],
 147[NEEDS_LIBICONV=],
 148[NEEDS_LIBICONV=YesPlease])
 149AC_SUBST(NEEDS_LIBICONV)
 150#
 151# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
 152# Patrick Mauritz).
 153AC_CHECK_LIB([c], [socket],
 154[NEEDS_SOCKET=],
 155[NEEDS_SOCKET=YesPlease])
 156AC_SUBST(NEEDS_SOCKET)
 157test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
 158
 159
 160## Checks for header files.
 161
 162
 163## Checks for typedefs, structures, and compiler characteristics.
 164AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
 165#
 166# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
 167AC_CHECK_MEMBER(struct dirent.d_ino,
 168[NO_D_INO_IN_DIRENT=],
 169[NO_D_INO_IN_DIRENT=YesPlease],
 170[#include <dirent.h>])
 171AC_SUBST(NO_D_INO_IN_DIRENT)
 172#
 173# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
 174# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
 175AC_CHECK_MEMBER(struct dirent.d_type,
 176[NO_D_TYPE_IN_DIRENT=],
 177[NO_D_TYPE_IN_DIRENT=YesPlease],
 178[#include <dirent.h>])
 179AC_SUBST(NO_D_TYPE_IN_DIRENT)
 180#
 181# Define NO_SOCKADDR_STORAGE if your platform does not have struct
 182# sockaddr_storage.
 183AC_CHECK_TYPE(struct sockaddr_storage,
 184[NO_SOCKADDR_STORAGE=],
 185[NO_SOCKADDR_STORAGE=YesPlease],[
 186#include <sys/types.h>
 187#include <sys/socket.h>
 188])
 189AC_SUBST(NO_SOCKADDR_STORAGE)
 190#
 191# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
 192AC_CHECK_TYPE([struct addrinfo],[
 193 AC_CHECK_FUNC([getaddrinfo],
 194  [NO_IPV6=],
 195  [NO_IPV6=YesPlease])
 196],[NO_IPV6=YesPlease],[
 197#include <sys/types.h>
 198#include <sys/socket.h>
 199#include <netdb.h>
 200])
 201AC_SUBST(NO_IPV6)
 202#
 203# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
 204# do not support the 'size specifiers' introduced by C99, namely ll, hh,
 205# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
 206# some C compilers supported these specifiers prior to C99 as an extension.
 207AC_CACHE_CHECK(whether formatted IO functions support C99 size specifiers,
 208 ac_cv_c_c99_format,
 209[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
 210AC_RUN_IFELSE(
 211        [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
 212                [[char buf[64];
 213                if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
 214                  exit(1);
 215                else if (strcmp(buf, "12345"))
 216                  exit(2);]])],
 217        [ac_cv_c_c99_format=yes],
 218        [ac_cv_c_c99_format=no])
 219])
 220if test $ac_cv_c_c99_format = no; then
 221        NO_C99_FORMAT=YesPlease
 222else
 223        NO_C99_FORMAT=
 224fi
 225AC_SUBST(NO_C99_FORMAT)
 226
 227
 228## Checks for library functions.
 229## (in default C library and libraries checked by AC_CHECK_LIB)
 230AC_MSG_NOTICE([CHECKS for library functions])
 231#
 232# Define NO_STRCASESTR if you don't have strcasestr.
 233AC_CHECK_FUNC(strcasestr,
 234[NO_STRCASESTR=],
 235[NO_STRCASESTR=YesPlease])
 236AC_SUBST(NO_STRCASESTR)
 237#
 238# Define NO_STRLCPY if you don't have strlcpy.
 239AC_CHECK_FUNC(strlcpy,
 240[NO_STRLCPY=],
 241[NO_STRLCPY=YesPlease])
 242AC_SUBST(NO_STRLCPY)
 243#
 244# Define NO_SETENV if you don't have setenv in the C library.
 245AC_CHECK_FUNC(setenv,
 246[NO_SETENV=],
 247[NO_SETENV=YesPlease])
 248AC_SUBST(NO_SETENV)
 249#
 250# Define NO_MMAP if you want to avoid mmap.
 251#
 252# Define NO_ICONV if your libc does not properly support iconv.
 253
 254
 255## Other checks.
 256# Define USE_PIC if you need the main git objects to be built with -fPIC
 257# in order to build and link perl/Git.so.  x86-64 seems to need this.
 258#
 259# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
 260# Enable it on Windows.  By default, symrefs are still used.
 261#
 262# Define WITH_OWN_SUBPROCESS_PY if you want to use with python 2.3.
 263#
 264# Define NO_ACCURATE_DIFF if your diff program at least sometimes misses
 265# a missing newline at the end of the file.
 266
 267
 268## Site configuration (override autodetection)
 269## --with-PACKAGE[=ARG] and --without-PACKAGE
 270AC_MSG_NOTICE([CHECKS for site configuration])
 271#
 272# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
 273# tests.  These tests take up a significant amount of the total test time
 274# but are not needed unless you plan to talk to SVN repos.
 275#
 276# Define MOZILLA_SHA1 environment variable when running make to make use of
 277# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
 278# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
 279# choice) has very fast version optimized for i586.
 280#
 281# Define PPC_SHA1 environment variable when running make to make use of
 282# a bundled SHA1 routine optimized for PowerPC.
 283#
 284# Define ARM_SHA1 environment variable when running make to make use of
 285# a bundled SHA1 routine optimized for ARM.
 286#
 287# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 288# This also implies MOZILLA_SHA1.
 289#
 290# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in
 291# /foo/bar/include and /foo/bar/lib directories.
 292AC_ARG_WITH(openssl,
 293AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
 294AS_HELP_STRING([],              [ARG can be prefix for openssl library and headers]),\
 295GIT_PARSE_WITH(openssl))
 296#
 297# Define NO_CURL if you do not have curl installed.  git-http-pull and
 298# git-http-push are not built, and you cannot use http:// and https://
 299# transports.
 300#
 301# Define CURLDIR=/foo/bar if your curl header and library files are in
 302# /foo/bar/include and /foo/bar/lib directories.
 303AC_ARG_WITH(curl,
 304AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)])
 305AS_HELP_STRING([],           [ARG can be also prefix for curl library and headers]),
 306GIT_PARSE_WITH(curl))
 307#
 308# Define NO_EXPAT if you do not have expat installed.  git-http-push is
 309# not built, and you cannot push using http:// and https:// transports.
 310#
 311# Define EXPATDIR=/foo/bar if your expat header and library files are in
 312# /foo/bar/include and /foo/bar/lib directories.
 313AC_ARG_WITH(expat,
 314AS_HELP_STRING([--with-expat],
 315[support git-push using http:// and https:// transports via WebDAV (default is YES)])
 316AS_HELP_STRING([],            [ARG can be also prefix for expat library and headers]),
 317GIT_PARSE_WITH(expat))
 318#
 319# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
 320# installed in /sw, but don't want GIT to link against any libraries
 321# installed there.  If defined you may specify your own (or Fink's)
 322# include directories and library directories by defining CFLAGS
 323# and LDFLAGS appropriately.
 324#
 325# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
 326# have DarwinPorts installed in /opt/local, but don't want GIT to
 327# link against any libraries installed there.  If defined you may
 328# specify your own (or DarwinPort's) include directories and
 329# library directories by defining CFLAGS and LDFLAGS appropriately.
 330#
 331# Define NO_MMAP if you want to avoid mmap.
 332
 333## --enable-FEATURE[=ARG] and --disable-FEATURE
 334#
 335# Define COLLISION_CHECK below if you believe that SHA1's
 336# 1461501637330902918203684832716283019655932542976 hashes do not give you
 337# sufficient guarantee that no collisions between objects will ever happen.
 338#
 339# Define USE_NSEC below if you want git to care about sub-second file mtimes
 340# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
 341# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
 342# randomly break unless your underlying filesystem supports those sub-second
 343# times (my ext3 doesn't).
 344#
 345# Define USE_STDEV below if you want git to care about the underlying device
 346# change being considered an inode change from the update-cache perspective.
 347
 348
 349## Output files
 350AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
 351AC_OUTPUT
 352
 353
 354## Cleanup
 355rm -f "${config_append}"