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=$withval); \
  65fi \
  66])# GIT_PARSE_WITH
  67
  68
  69## Site configuration related to programs (before tests)
  70## --with-PACKAGE[=ARG] and --without-PACKAGE
  71#
  72# Define SHELL_PATH to provide path to shell.
  73GIT_ARG_SET_PATH(shell)
  74#
  75# Define PERL_PATH to provide path to Perl.
  76GIT_ARG_SET_PATH(perl)
  77#
  78# Declare the with-tcltk/without-tcltk options.
  79AC_ARG_WITH(tcltk,
  80AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)])
  81AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.])
  82AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if])
  83AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\
  84GIT_PARSE_WITH(tcltk))
  85#
  86
  87
  88## Checks for programs.
  89AC_MSG_NOTICE([CHECKS for programs])
  90#
  91AC_PROG_CC([cc gcc])
  92#AC_PROG_INSTALL                # needs install-sh or install.sh in sources
  93AC_CHECK_TOOL(AR, ar, :)
  94AC_CHECK_PROGS(TAR, [gtar tar])
  95# TCLTK_PATH will be set to some value if we want Tcl/Tk
  96# or will be empty otherwise.
  97if test -z "$NO_TCLTK"; then
  98  if test "$with_tcltk" = ""; then
  99  # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'.
 100    TCLTK_PATH=wish
 101    AC_SUBST(TCLTK_PATH)
 102  elif test "$with_tcltk" = "yes"; then
 103  # Tcl/Tk check requested.
 104    AC_CHECK_PROGS(TCLTK_PATH, [wish], )
 105  else
 106    AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk])
 107    TCLTK_PATH="$with_tcltk"
 108    AC_SUBST(TCLTK_PATH)
 109  fi
 110fi
 111
 112## Checks for libraries.
 113AC_MSG_NOTICE([CHECKS for libraries])
 114#
 115# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 116# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
 117AC_CHECK_LIB([crypto], [SHA1_Init],
 118[NEEDS_SSL_WITH_CRYPTO=],
 119[AC_CHECK_LIB([ssl], [SHA1_Init],
 120 [NEEDS_SSL_WITH_CRYPTO=YesPlease
 121  NEEDS_SSL_WITH_CRYPTO=],
 122 [NO_OPENSSL=YesPlease])])
 123AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
 124AC_SUBST(NO_OPENSSL)
 125#
 126# Define NO_CURL if you do not have curl installed.  git-http-pull and
 127# git-http-push are not built, and you cannot use http:// and https://
 128# transports.
 129AC_CHECK_LIB([curl], [curl_global_init],
 130[NO_CURL=],
 131[NO_CURL=YesPlease])
 132AC_SUBST(NO_CURL)
 133#
 134# Define NO_EXPAT if you do not have expat installed.  git-http-push is
 135# not built, and you cannot push using http:// and https:// transports.
 136AC_CHECK_LIB([expat], [XML_ParserCreate],
 137[NO_EXPAT=],
 138[NO_EXPAT=YesPlease])
 139AC_SUBST(NO_EXPAT)
 140#
 141# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and
 142# some Solaris installations).
 143# Define NO_ICONV if neither libc nor libiconv support iconv.
 144AC_DEFUN([ICONVTEST_SRC], [
 145#include <iconv.h>
 146
 147int main(void)
 148{
 149        iconv_open("", "");
 150        return 0;
 151}
 152])
 153AC_MSG_CHECKING([for iconv in -lc])
 154AC_LINK_IFELSE(ICONVTEST_SRC,
 155        [AC_MSG_RESULT([yes])
 156        NEEDS_LIBICONV=],
 157        [AC_MSG_RESULT([no])
 158        old_LIBS="$LIBS"
 159        LIBS="$LIBS -liconv"
 160        AC_MSG_CHECKING([for iconv in -liconv])
 161        AC_LINK_IFELSE(ICONVTEST_SRC,
 162                [AC_MSG_RESULT([yes])
 163                NEEDS_LIBICONV=YesPlease],
 164                [AC_MSG_RESULT([no])
 165                NO_ICONV=YesPlease])
 166        LIBS="$old_LIBS"])
 167AC_SUBST(NEEDS_LIBICONV)
 168AC_SUBST(NO_ICONV)
 169test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv"
 170#
 171# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
 172# Patrick Mauritz).
 173AC_CHECK_LIB([c], [socket],
 174[NEEDS_SOCKET=],
 175[NEEDS_SOCKET=YesPlease])
 176AC_SUBST(NEEDS_SOCKET)
 177test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
 178
 179
 180## Checks for header files.
 181
 182
 183## Checks for typedefs, structures, and compiler characteristics.
 184AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
 185#
 186# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
 187AC_CHECK_MEMBER(struct dirent.d_ino,
 188[NO_D_INO_IN_DIRENT=],
 189[NO_D_INO_IN_DIRENT=YesPlease],
 190[#include <dirent.h>])
 191AC_SUBST(NO_D_INO_IN_DIRENT)
 192#
 193# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
 194# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
 195AC_CHECK_MEMBER(struct dirent.d_type,
 196[NO_D_TYPE_IN_DIRENT=],
 197[NO_D_TYPE_IN_DIRENT=YesPlease],
 198[#include <dirent.h>])
 199AC_SUBST(NO_D_TYPE_IN_DIRENT)
 200#
 201# Define NO_SOCKADDR_STORAGE if your platform does not have struct
 202# sockaddr_storage.
 203AC_CHECK_TYPE(struct sockaddr_storage,
 204[NO_SOCKADDR_STORAGE=],
 205[NO_SOCKADDR_STORAGE=YesPlease],[
 206#include <sys/types.h>
 207#include <sys/socket.h>
 208])
 209AC_SUBST(NO_SOCKADDR_STORAGE)
 210#
 211# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
 212AC_CHECK_TYPE([struct addrinfo],[
 213 AC_CHECK_FUNC([getaddrinfo],
 214  [NO_IPV6=],
 215  [NO_IPV6=YesPlease])
 216],[NO_IPV6=YesPlease],[
 217#include <sys/types.h>
 218#include <sys/socket.h>
 219#include <netdb.h>
 220])
 221AC_SUBST(NO_IPV6)
 222#
 223# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
 224# do not support the 'size specifiers' introduced by C99, namely ll, hh,
 225# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
 226# some C compilers supported these specifiers prior to C99 as an extension.
 227AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers],
 228 [ac_cv_c_c99_format],
 229[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
 230AC_RUN_IFELSE(
 231        [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
 232                [[char buf[64];
 233                if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
 234                  exit(1);
 235                else if (strcmp(buf, "12345"))
 236                  exit(2);]])],
 237        [ac_cv_c_c99_format=yes],
 238        [ac_cv_c_c99_format=no])
 239])
 240if test $ac_cv_c_c99_format = no; then
 241        NO_C99_FORMAT=YesPlease
 242else
 243        NO_C99_FORMAT=
 244fi
 245AC_SUBST(NO_C99_FORMAT)
 246
 247
 248## Checks for library functions.
 249## (in default C library and libraries checked by AC_CHECK_LIB)
 250AC_MSG_NOTICE([CHECKS for library functions])
 251#
 252# Define NO_STRCASESTR if you don't have strcasestr.
 253AC_CHECK_FUNC(strcasestr,
 254[NO_STRCASESTR=],
 255[NO_STRCASESTR=YesPlease])
 256AC_SUBST(NO_STRCASESTR)
 257#
 258# Define NO_STRLCPY if you don't have strlcpy.
 259AC_CHECK_FUNC(strlcpy,
 260[NO_STRLCPY=],
 261[NO_STRLCPY=YesPlease])
 262AC_SUBST(NO_STRLCPY)
 263#
 264# Define NO_SETENV if you don't have setenv in the C library.
 265AC_CHECK_FUNC(setenv,
 266[NO_SETENV=],
 267[NO_SETENV=YesPlease])
 268AC_SUBST(NO_SETENV)
 269#
 270# Define NO_MMAP if you want to avoid mmap.
 271#
 272# Define NO_ICONV if your libc does not properly support iconv.
 273
 274
 275## Other checks.
 276# Define USE_PIC if you need the main git objects to be built with -fPIC
 277# in order to build and link perl/Git.so.  x86-64 seems to need this.
 278#
 279# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
 280# Enable it on Windows.  By default, symrefs are still used.
 281
 282## Site configuration (override autodetection)
 283## --with-PACKAGE[=ARG] and --without-PACKAGE
 284AC_MSG_NOTICE([CHECKS for site configuration])
 285#
 286# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
 287# tests.  These tests take up a significant amount of the total test time
 288# but are not needed unless you plan to talk to SVN repos.
 289#
 290# Define MOZILLA_SHA1 environment variable when running make to make use of
 291# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
 292# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
 293# choice) has very fast version optimized for i586.
 294#
 295# Define PPC_SHA1 environment variable when running make to make use of
 296# a bundled SHA1 routine optimized for PowerPC.
 297#
 298# Define ARM_SHA1 environment variable when running make to make use of
 299# a bundled SHA1 routine optimized for ARM.
 300#
 301# Define NO_OPENSSL environment variable if you do not have OpenSSL.
 302# This also implies MOZILLA_SHA1.
 303#
 304# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in
 305# /foo/bar/include and /foo/bar/lib directories.
 306AC_ARG_WITH(openssl,
 307AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
 308AS_HELP_STRING([],              [ARG can be prefix for openssl library and headers]),\
 309GIT_PARSE_WITH(openssl))
 310#
 311# Define NO_CURL if you do not have curl installed.  git-http-pull and
 312# git-http-push are not built, and you cannot use http:// and https://
 313# transports.
 314#
 315# Define CURLDIR=/foo/bar if your curl header and library files are in
 316# /foo/bar/include and /foo/bar/lib directories.
 317AC_ARG_WITH(curl,
 318AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)])
 319AS_HELP_STRING([],           [ARG can be also prefix for curl library and headers]),
 320GIT_PARSE_WITH(curl))
 321#
 322# Define NO_EXPAT if you do not have expat installed.  git-http-push is
 323# not built, and you cannot push using http:// and https:// transports.
 324#
 325# Define EXPATDIR=/foo/bar if your expat header and library files are in
 326# /foo/bar/include and /foo/bar/lib directories.
 327AC_ARG_WITH(expat,
 328AS_HELP_STRING([--with-expat],
 329[support git-push using http:// and https:// transports via WebDAV (default is YES)])
 330AS_HELP_STRING([],            [ARG can be also prefix for expat library and headers]),
 331GIT_PARSE_WITH(expat))
 332#
 333# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
 334# installed in /sw, but don't want GIT to link against any libraries
 335# installed there.  If defined you may specify your own (or Fink's)
 336# include directories and library directories by defining CFLAGS
 337# and LDFLAGS appropriately.
 338#
 339# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
 340# have DarwinPorts installed in /opt/local, but don't want GIT to
 341# link against any libraries installed there.  If defined you may
 342# specify your own (or DarwinPort's) include directories and
 343# library directories by defining CFLAGS and LDFLAGS appropriately.
 344#
 345# Define NO_MMAP if you want to avoid mmap.
 346#
 347# Define NO_ICONV if your libc does not properly support iconv.
 348AC_ARG_WITH(iconv,
 349AS_HELP_STRING([--without-iconv],
 350[if your architecture doesn't properly support iconv])
 351AS_HELP_STRING([--with-iconv=PATH],
 352[PATH is prefix for libiconv library and headers])
 353AS_HELP_STRING([],
 354[used only if you need linking with libiconv]),
 355GIT_PARSE_WITH(iconv))
 356
 357## --enable-FEATURE[=ARG] and --disable-FEATURE
 358#
 359# Define USE_NSEC below if you want git to care about sub-second file mtimes
 360# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
 361# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
 362# randomly break unless your underlying filesystem supports those sub-second
 363# times (my ext3 doesn't).
 364#
 365# Define USE_STDEV below if you want git to care about the underlying device
 366# change being considered an inode change from the update-cache perspective.
 367
 368
 369## Output files
 370AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
 371AC_OUTPUT
 372
 373
 374## Cleanup
 375rm -f "${config_append}"