gimp/configure.in

dnl Process this file with autoconf to produce a configure script.

###############
# Sanity checks
###############

# require autoconf 2.52
AC_PREREQ(2.52)

AC_INIT(etc/gimprc.in)


############
# Versioning
############

GLIB_REQUIRED_VERSION=2.0.0
GTK_REQUIRED_VERSION=$GLIB_REQUIRED_VERSION
PANGOFT2_REQUIRED_VERSION=1.0.0
GTKDOC_REQUIRED_VERSION=0.9
GTKHTML2_REQUIRED_VERSION=1.99.5
GIMPPRINT_REQUIRED_VERSION=4.2.0

#
# Making releases:
#   GIMP_MICRO_VERSION += 1;
#   GIMP_INTERFACE_AGE += 1;
#   GIMP_BINARY_AGE += 1;
# if any functions have been added, set GIMP_INTERFACE_AGE to 0.
# if backwards compatibility has been broken,
# set GIMP_BINARY_AGE and GIMP_INTERFACE_AGE to 0.
#
GIMP_MAJOR_VERSION=1
GIMP_MINOR_VERSION=3
GIMP_MICRO_VERSION=7
GIMP_INTERFACE_AGE=0
GIMP_BINARY_AGE=0
GIMP_VERSION=$GIMP_MAJOR_VERSION.$GIMP_MINOR_VERSION.$GIMP_MICRO_VERSION

AC_SUBST(GIMP_MAJOR_VERSION)
AC_SUBST(GIMP_MINOR_VERSION)
AC_SUBST(GIMP_MICRO_VERSION)
AC_SUBST(GIMP_VERSION)


dnl libtool versioning
LT_RELEASE=$GIMP_MAJOR_VERSION.$GIMP_MINOR_VERSION
LT_CURRENT=`expr $GIMP_MICRO_VERSION - $GIMP_INTERFACE_AGE`
LT_REVISION=$GIMP_INTERFACE_AGE
LT_AGE=`expr $GIMP_BINARY_AGE - $GIMP_INTERFACE_AGE`
LT_CURRENT_MINUS_AGE=`expr $LT_CURRENT - $LT_AGE`

AC_SUBST(LT_RELEASE)
AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)
AC_SUBST(LT_CURRENT_MINUS_AGE)


#####################
# Initialize automake
#####################

VERSION=$GIMP_VERSION
PACKAGE=gimp

AM_INIT_AUTOMAKE($PACKAGE, $VERSION, no-define)

dnl Specify a configuration file
AM_CONFIG_HEADER(config.h)

dnl Initialize maintainer mode
AM_MAINTAINER_MODE

# Honor aclocal flags
ACLOCAL="$ACLOCAL $ACLOCAL_FLAGS"

dnl XXXX Hack: Set AS and ASFLAGS so that automake 1.5 will be happy
AS="\${CC}"
ASFLAGS="\${CFLAGS}"
AC_SUBST(AS)
AC_SUBST(ASFLAGS)
dnl XXXX Hack: Set CCAS and CCASFLAGS so that automake 1.6 will be happy
CCAS="\${CC}"
CCASFLAGS="\${CFLAGS}"
AC_SUBST(CCAS)
AC_SUBST(CCASFLAGS)


####################
# Initialize libtool
####################

dnl Initialize libtool
AC_PROG_CC
AC_LIBTOOL_WIN32_DLL
AM_PROG_LIBTOOL


#################
# Check for Win32
#################

AC_MSG_CHECKING([for some Win32 platform])
case "$host" in
  *-*-mingw*|*-*-cygwin*)
    platform_win32=yes
    ;;
  *)
    platform_win32=no
    ;;
esac
AC_MSG_RESULT([$platform_win32])
AM_CONDITIONAL(PLATFORM_WIN32, test "$platform_win32" = "yes")

AC_MSG_CHECKING([for native Win32])
case "$host" in
  *-*-mingw*)
    os_win32=yes
    PATHSEP=';'
    ;;
  *)
    os_win32=no
    PATHSEP=':'
    ;;
esac
AC_MSG_RESULT([$os_win32])
AC_SUBST(PATHSEP)
AM_CONDITIONAL(OS_WIN32, test "$os_win32" = "yes")

if test "$os_win32" = "yes"; then
  AC_CHECK_PROG(ms_librarian, lib.exe, yes, no)
fi
AM_CONDITIONAL(MS_LIB_AVAILABLE, test x$ms_librarian = xyes)


###############
# Generic stuff
###############

dnl Checks for programs.
AC_ISC_POSIX
AM_PROG_CC_STDC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_CPP

dnl Large file support for the swap file
AC_SYS_LARGEFILE

AC_ARG_ENABLE(debug,
              [  --enable-debug          turn on debugging [default=no]],
              if eval "test x$enable_debug = xyes"; then
                DEBUGFLAG="-g"
              fi)

if test -n "$DEBUGFLAG"; then
  CFLAGS="$DEBUGFLAG $CFLAGS"
fi

AC_ARG_ENABLE(ansi,
              [  --enable-ansi           turn on strict ansi [default=no]],,
              enable_ansi=no)

if eval "test x$GCC = xyes"; then
  case " $CFLAGS " in
  *[\ \	]-Wall[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wall" ;;
  esac

  if test "x$enable_ansi" = "xyes"; then
    case " $CFLAGS " in
    *[\ \	]-ansi[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -ansi" ;;
    esac

    case " $CFLAGS " in
    *[\ \	]-pedantic[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -pedantic" ;;
    esac
  fi
fi

AC_MSG_CHECKING(whether make is GNU Make)
STRIP_BEGIN=
STRIP_END=
STRIP_DUMMY=
if $ac_make --version 2>/dev/null | grep '^GNU Make ' >/dev/null ; then
	STRIP_BEGIN='$(strip $(STRIP_DUMMY)'
	STRIP_END=')'
	AC_MSG_RESULT(yes)
else
	AC_MSG_RESULT(no)
fi
AC_SUBST(STRIP_DUMMY)
AC_SUBST(STRIP_BEGIN)
AC_SUBST(STRIP_END)


AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_HEADER_TIME

AC_CHECK_HEADERS(sys/param.h sys/time.h sys/times.h sys/wait.h unistd.h)

AC_TYPE_PID_T
AC_TYPE_SIGNAL
AC_FUNC_VPRINTF

AC_FUNC_ALLOCA

dnl check some more funcs
AC_CHECK_FUNCS(difftime putenv mmap)


dnl check for inline
AC_MSG_CHECKING([for inline definition in glibconfig.h])
AC_EGREP_CPP(glib_defines_inline,
[#include <glibconfig.h>
#ifdef inline
   glib_defines_inline
#endif
], have_glib_inline=yes, have_glib_inline=no)
AC_MSG_RESULT($have_glib_inline)
if test "$have_glib_inline" = "no"; then
  AC_C_INLINE
fi  


######################
# Internationalisation
######################

GETTEXT_PACKAGE=gimp14
AC_SUBST(GETTEXT_PACKAGE)
AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, "$GETTEXT_PACKAGE",
                   [The prefix for our gettext translation domains.])

ALL_LINGUAS="ca cs da de el en_GB es fi fr ga gl hu hr it ja ko nl no pl pt pt_BR ro ru sk sv tr uk zh_CN zh_TW"

AC_PROG_INTLTOOL
AM_GLIB_GNU_GETTEXT


###############################
# Checks for required libraries
###############################

AM_PATH_GLIB_2_0($GLIB_REQUIRED_VERSION,,
  AC_MSG_ERROR(Test for GLIB failed. See the file 'INSTALL' for help.),
  gobject)

dnl Check for bind_textdomain_codeset, including -lintl if GLib brings it in.
gimp_save_LIBS=$LIBS
LIBS="$LIBS $GLIB_LIBS"
AC_CHECK_FUNCS(bind_textdomain_codeset)
LIBS=$gimp_save_LIBS


AC_PATH_XTRA

AM_PATH_GTK_2_0($GTK_REQUIRED_VERSION,,
  AC_MSG_ERROR(Test for GTK failed. See the file 'INSTALL' for help.))

PKG_CHECK_MODULES(PANGOFT2, pangoft2 >= $PANGOFT2_REQUIRED_VERSION)
AC_SUBST(PANGOFT2_CFLAGS)
AC_SUBST(PANGOFT2_LIBS)

PKG_CHECK_MODULES(LIBART, libart-2.0)
AC_SUBST(LIBART_CFLAGS)
AC_SUBST(LIBART_LIBS)

AC_SUBST(PKG_CONFIG)


##########################################
# Check for some special functions we need
##########################################

AC_CHECK_HEADERS(math.h ieeefp.h)

dnl DU4 native cc currently needs -std1 for ANSI mode (instead of K&R)
AC_MSG_CHECKING([for extra flags to get ANSI library prototypes])
gimp_save_LIBS=$LIBS
LIBS="$LIBS -lm"
AC_TRY_RUN([#include <math.h>
             int main (void) { return (log(1) != log(1.)); }],
  AC_MSG_RESULT(none needed),
  gimp_save_CFLAGS=$CFLAGS
  CFLAGS="$CFLAGS -std1"
  AC_TRY_RUN([#include <math.h>
               int main (void) { return (log(1) != log(1.)); }],
    AC_MSG_RESULT(-std1),
    AC_MSG_RESULT()
    CFLAGS=$gimp_save_CFLAGS
    AC_MSG_WARN([No ANSI prototypes found in library. (-std1 didn't work.)]),
    AC_MSG_RESULT),
  AC_MSG_RESULT())

LIBS=$gimp_save_LIBS


dnl NeXTStep cc seems to need this
AC_MSG_CHECKING([for extra flags for POSIX compliance])
AC_TRY_COMPILE([#include <dirent.h>], [DIR *dir;],
  AC_MSG_RESULT(none needed),
  gimp_save_CFLAGS=$CFLAGS
  CFLAGS="$CFLAGS -posix"
  AC_TRY_COMPILE([#include <dirent.h>], [DIR *dir;],
    AC_MSG_RESULT(-posix),
    AC_MSG_RESULT()
    CFLAGS=$gimp_save_CFLAGS
    AC_MSG_WARN([Could not determine POSIX flag. (-posix didn't work.)])))

dnl Check for finite or isfinite
AC_CHECK_FUNCS(finite, , [
  AC_MSG_CHECKING(for finite in <math.h>)
  AC_TRY_LINK([#include <math.h>], [double f = 0.0; finite (f)], [
    AC_DEFINE(HAVE_FINITE, 1)
    AC_MSG_RESULT(yes)], [
    AC_MSG_RESULT(no)
    AC_MSG_CHECKING(for isfinite in <math.h>)
    AC_TRY_LINK([#include <math.h>], [float f = 0.0; isfinite(f)], [
      AC_DEFINE(HAVE_ISFINITE, 1,
                [Define to 1 if you have the isfinite function.])
      AC_MSG_RESULT(yes)], AC_MSG_RESULT(no))])])
AC_SUBST(HAVE_FINITE)
AC_SUBST(HAVE_ISFINITE)

dnl check for rint
AC_CHECK_FUNC(rint, AC_DEFINE(HAVE_RINT, 1,
                              [Define to 1 if you have the rint function.]), [
  AC_CHECK_LIB(m, rint, [
    AC_DEFINE(HAVE_RINT)])])


########################
# Check for MMX assembly
########################

have_asm_mmx=false
AC_MSG_CHECKING([for Intel Pentium architecture (IA32)])
if test "$host_cpu" = "i386" -o "$host_cpu" = "i486"\
  -o "$host_cpu" = "i586" -o "$host_cpu" = "i586"\
  -o "$host_cpu" = "i686" -o "$host_cpu" = "i786" ;
then
  AC_MSG_RESULT(yes)  
  AC_MSG_CHECKING([for support for gcc-style register parameters on Intel])
  AC_TRY_COMPILE([],
   [extern void x(
    const unsigned char *src1,
    const unsigned char *src2,
    unsigned count,
    unsigned char *dst) __attribute((regparm(3)));],

   [AC_MSG_RESULT(yes)

    AC_MSG_CHECKING([for support for MMX in assembly code])
    cat > conftest.S <<EOF
	  .text

	  psubusb %mm3, %mm4
EOF

    if $CC -c conftest.S ; then
      AC_MSG_RESULT(yes)
      rm -f conftest.*
      AC_DEFINE(HAVE_ASM_MMX, 1,
                [Define to 1 if MMX in assembly is supported.])
      have_asm_mmx=true
    else
      AC_MSG_RESULT(no)
      echo "configure: failed program was:" >&AC_FD_CC
      cat conftest.S >&AC_FD_CC
      rm -rf conftest.* ;
    fi
   ],
   [AC_MSG_RESULT(no)
    AC_MSG_WARN(*** C compiler does not support  __attribute((regparm(3))), MMX code will not be built)]);
else
  AC_MSG_RESULT(no) ; 
fi
AM_CONDITIONAL(HAVE_ASM_MMX, test x$have_asm_mmx = xtrue)


###################################
# Checks for shared memory handling
###################################

AC_CHECK_HEADER(sys/ipc.h,
  [AC_DEFINE(HAVE_IPC_H, 1,
             [Define to 1 if you have the <sys/ipc.h> heacder file.])],
  no_sys_ipc=yes)
AC_CHECK_HEADER(sys/shm.h,
  [AC_DEFINE(HAVE_SHM_H, 1,
             [Define to 1 if you have the <sys/shm.h> header file.])],
  no_sys_shm=yes)
if test "$ac_cv_header_sys_shm_h" = "yes"; then
  AC_MSG_CHECKING(whether shmctl IPC_RMID allowes subsequent attaches)
  AC_TRY_RUN([
	#include <sys/types.h>
	#include <sys/ipc.h>
	#include <sys/shm.h>
	int main()
	{
	  int id;
	  char *shmaddr;
	id = shmget (IPC_PRIVATE, 4, IPC_CREAT | 0777);
	if (id == -1)
	  exit (2);
	  shmaddr = shmat (id, 0, 0);
	  shmctl (id, IPC_RMID, 0);
	  if ((char*) shmat (id, 0, 0) == (char*) -1)
	  {
	    shmdt (shmaddr);
	    exit (1);
	  }
	  shmdt (shmaddr);
	  shmdt (shmaddr);
	  exit (0);
	}
    ],
    AC_DEFINE(IPC_RMID_DEFERRED_RELEASE, 1,
	      [Define to 1 if shared memory segments are released deferred.])
      AC_MSG_RESULT(yes),
    AC_MSG_RESULT(no),
    AC_MSG_RESULT(assuming no))
fi


##################################
# Check for regex support in glibc
##################################

AC_MSG_CHECKING(checking for regex in glibc)
AC_TRY_RUN([
#include <features.h>
#include <stdio.h>
#include <regex.h>
int main()
{
#if __GLIBC__ >= 2
  return (0);
#else
  return (1);
#endif
}], AC_DEFINE(HAVE_GLIBC_REGEX, 1,
              [Define to 1 if glibc has regex support.])
    have_glibc_regex=yes
    AC_MSG_RESULT(yes),
    AC_MSG_RESULT(no),
    AC_MSG_RESULT(assuming no))
AM_CONDITIONAL(HAVE_GLIBC_REGEX, test x$have_glibc_regex = xyes)

AC_SUBST(HAVE_GLIBC_REGEX)


############################
# Check for select and fdset
############################

AC_MSG_CHECKING([fd_set and sys/select])
AC_TRY_COMPILE([#include <sys/types.h>],
        [fd_set readMask, writeMask;], gimp_ok=yes, gimp_ok=no)
if test $gimp_ok = no; then
    AC_EGREP_HEADER(fd_mask, sys/select.h, gimp_ok=yes)
    if test $gimp_ok = yes; then
        AC_DEFINE(HAVE_SYS_SELECT_H, 1,
                  [Define to 1 if you have the <sys/select.h> header.])
    fi
fi
AC_MSG_RESULT($gimp_ok)
if test $gimp_ok = no; then
    AC_DEFINE(NO_FD_SET, 1,
              [Define to 1 if you don't have the fd_set function.])
fi


##############################################################
# Check for random number functions (FIXME: should use g_rand)
##############################################################

dnl Check for random number functions
LIBUCB=""
AC_CHECK_FUNC(random, [
  AC_DEFINE(RAND_FUNC, random, [Define a random function. FIXME!])
  AC_DEFINE(SRAND_FUNC, srandom, [Define a srandom function. FIXME!])],
  [AC_CHECK_LIB(ucb, random, [
    AC_DEFINE(RAND_FUNC, random)
    AC_DEFINE(SRAND_FUNC, srandom)
    LIBUCB='-lucb'],
    [AC_CHECK_FUNC(lrand48,
      [AC_DEFINE(RAND_FUNC, lrand48) AC_DEFINE(SRAND_FUNC, srand48)],
      [AC_DEFINE(RAND_FUNC, rand) AC_DEFINE(SRAND_FUNC, srand)])])])

AC_SUBST(LIBUCB)


#############################
# Threads and multi processor 
#############################

dnl AC_ARG_ENABLE(threads, [  --enable-threads    support POSIX threading [default=no]])
dnl if test "x$enable_threads" = "xyes"; then
dnl   AC_CHECK_LIB(pthread, pthread_attr_init, 
dnl     [AC_DEFINE(USE_PTHREADS)
dnl     GIMP_THREAD_LIBS="-lpthread"
dnl     GIMP_THREAD_FLAGS="-D_REENTRANT"],
dnl     # AIX has libpthreads, cause they're special. Special friends (TM)
dnl     AC_CHECK_LIB(pthreads, pthread_attr_init,
dnl       [AC_DEFINE(USE_PTHREADS)
dnl       GIMP_THREAD_LIBS="-lpthreads"
dnl       GIMP_THREAD_FLAGS="-D_REENTRANT -D_THREAD_SAFE"]))
dnl fi

AC_SUBST(GIMP_THREAD_FLAGS)
AC_SUBST(GIMP_THREAD_LIBS)


AC_ARG_ENABLE(mp, [  --enable-mp             support multiple processors [default=no]])
if test "x$enable_mp" = "xyes"; then
  AC_CHECK_LIB(pthread, pthread_attr_init, 
    [AC_DEFINE(ENABLE_MP, 1,
	       [Define to 1 to enable support for multiple processors.])
    GIMP_MP_LIBS="-lpthread"
    GIMP_MP_FLAGS="-D_REENTRANT"],
    # AIX has libpthreads, cause they're special. Special friends (TM)
    AC_CHECK_LIB(pthreads, pthread_attr_init,
      [AC_DEFINE(ENABLE_MP)
      GIMP_MP_LIBS="-lpthreads"
      GIMP_MP_FLAGS="-D_REENTRANT -D_THREAD_SAFE"]))
fi

AC_SUBST(GIMP_MP_FLAGS)
AC_SUBST(GIMP_MP_LIBS)


################################
# Some plug-ins are X11 specific
################################

dnl Check if building for GTK+-X11
gdk_target=`$PKG_CONFIG --variable=target gtk+-2.0`
if test "$gdk_target" = x11; then
  dnl Test for Xmu
    if test -z "$LIBXMU"; then
      gimp_save_LDFLAGS="$LDFLAGS"
      LDFLAGS="$LDFLAGS $X_LIBS"
      AC_CHECK_LIB(Xmu, XmuClientWindow,
        [AC_CHECK_HEADER(X11/Xmu/WinUtil.h,
          GIMP_REMOTE='gimp-remote-1.3';
	  WEBBROWSER='webbrowser';
          LIBXMU="$X_LIBS $X_PRE_LIBS -lX11 -lXmu -lXt",
	  [AC_MSG_WARN(*** webbrowser plug-in and gimp-remote will not be built (XMU header file not found) ***)])],
	  [AC_CHECK_LIB(Xmu, XmuUpdateMapHints,
	    [AC_CHECK_HEADER(X11/Xmu/WinUtil.h,
              GIMP_REMOTE='gimp-remote-1.3';
	      WEBBROWSER='webbrowser';
	      LIBXMU="$X_LIBS $X_PRE_LIBS -lX11 -lXmu -lXt",
	      [AC_MSG_WARN(*** webbrowser plug-in and gimp-remote will not be built (XMU header file not found) ***)])],
	  AC_MSG_WARN(*** webbrowser plug-in and gimp-remote will not be built (XMU library not found) ***), -lXt)], -lXt)
      LDFLAGS="$gimp_save_LDFLAGS"
    fi
  else
     AC_MSG_WARN([ 
*** Not building for GTK+-X11 (GDK backend is $gdk_target).
*** Webbrowser plug-in and gimp-remote will not be built.])
  fi

AC_SUBST(LIBXMU)
AC_SUBST(WEBBROWSER)
AC_SUBST(GIMP_REMOTE)


###################
# Check for libtiff
###################

AC_ARG_WITH(libtiff,  [  --without-libtiff       build without TIFF support])
  if test x$with_libtiff != xno && test -z "$LIBTIFF"; then
    AC_CHECK_LIB(tiff, TIFFReadScanline,
      [AC_CHECK_HEADER(tiffio.h,
	TIFF='tiff'; LIBTIFF='-ltiff',
	[AC_MSG_WARN(*** TIFF plug-in will not be built (TIFF header files not found) ***)])],
      [AC_CHECK_LIB(tiff, TIFFWriteScanline,
	[AC_CHECK_HEADER(tiffio.h,
          TIFF='tiff'; LIBTIFF='-ltiff -ljpeg -lz',
	  [AC_MSG_WARN(*** TIFF plug-in will not be built (TIFF header files not found) ***)])],
	[AC_CHECK_LIB(tiff34, TIFFFlushData,
	  [AC_CHECK_HEADER(tiffio.h,
            TIFF='tiff'; LIBTIFF='-ltiff34 -ljpeg -lz',
	    [AC_MSG_WARN(*** TIFF plug-in will not be built (TIFF header files not found) ***)])],
        [AC_MSG_WARN(*** TIFF plug-in will not be built (TIFF library not found) ***)], -ljpeg -lz -lm)], -ljpeg -lz -lm)], -lm)
  fi

  if test x$with_libtiff != xno && test -z "$LIBTIFF"; then
     AC_MSG_ERROR([
*** Checks for TIFF libary failed. You can build without it by passing 
*** --without-libtiff to configure but you won't be able to use TIFFs then.])
  fi

AC_SUBST(TIFF)
AC_SUBST(LIBTIFF)


###################
# Check for libjpeg
###################

AC_ARG_WITH(libjpeg,  [  --without-libjpeg       build without JPEG support])
  if test x$with_libjpeg != xno && test -z "$LIBJPEG"; then
    AC_CHECK_LIB(jpeg, jpeg_destroy_decompress,
      jpeg_ok=yes,
      [jpeg_ok=no
      AC_MSG_WARN(*** JPEG plug-in will not be built (JPEG library not found) ***)
      AC_MSG_WARN(*** XJT plug-in will not be built (JPEG library not found) ***)])
    if test "$jpeg_ok" = yes; then
      AC_MSG_CHECKING([for jpeglib.h])
      AC_TRY_CPP([
#include <stdio.h>
#undef HAVE_STDDEF_H
#undef HAVE_STDLIB_H
#undef PACKAGE
#undef VERSION
#include <jpeglib.h>],
	jpeg_ok=yes,
	jpeg_ok=no)
      AC_MSG_RESULT($jpeg_ok)
      if test "$jpeg_ok" = yes; then
	JPEG='jpeg'; XJT='xjt'; LIBJPEG='-ljpeg'
	AC_CHECK_LIB(jpeg, jpeg_simple_progression,	
	  AC_DEFINE(HAVE_PROGRESSIVE_JPEG, 1,
                    [Define to 1 if jpeglib supports progressive JPEG.]),
	  AC_MSG_WARN(JPEG library does not support progressive saving.))
      else
	AC_MSG_WARN(*** JPEG plug-in will not be built (JPEG header file not found) ***)
        AC_MSG_WARN(*** XJT plug-in will not be built (JPEG header file not found) ***)
      fi
    fi
  fi

  if test x$with_libjpeg != xno && test -z "$LIBJPEG"; then
     AC_MSG_ERROR([
*** Checks for JPEG library failed. You can build without it by passing 
*** --without-libjpeg to configure but you won't be able to use JPEGs then.])
  fi

AC_SUBST(JPEG)
AC_SUBST(XJT)
AC_SUBST(LIBJPEG)


################
# Check for libz
################

if test -z "$LIBZ"; then
  AC_CHECK_LIB(z, gzsetparams,
    [AC_CHECK_HEADER(zlib.h,
      PSP='psp'; LIBZ='-lz',
      [AC_MSG_WARN(*** PSP and PNG plug-ins will not be built (ZLIB header files not found) ***)])],
    [AC_MSG_WARN(*** PSP and PNG plug-ins will not be built (ZLIB library not found) ***)])
fi

AC_SUBST(LIBZ)
AC_SUBST(PSP)


##################
# Check for libpng
##################

AC_ARG_WITH(libpng,  [  --without-libpng        build without PNG support])
  if test x$with_libpng != xno && test -z "$LIBPNG" && test -n "$LIBZ"; then
    AC_CHECK_LIB(png, png_read_info,
      [AC_CHECK_HEADER(png.h,
	png_ok=yes,
	png_ok=no)],
      [AC_MSG_WARN(*** PNG plug-in will not be built (PNG library not found) ***)], -lz -lm)
    if test "$png_ok" = yes; then
      AC_MSG_CHECKING([for png_structp in png.h])
      AC_TRY_COMPILE([#include <png.h>],
        [png_structp pp; png_infop info; png_colorp cmap; png_create_read_struct;],
        png_ok=yes,
        png_ok=no)
      AC_MSG_RESULT($png_ok)
      if test "$png_ok" = yes; then
        PNG='png'; LIBPNG="-lpng $LIBZ"
      else
        AC_MSG_WARN(*** PNG plug-in will not be built (PNG library is too old) ***)
      fi
    else
      AC_MSG_WARN(*** PNG plug-in will not be built (PNG header file not found) ***)
    fi
  fi

  if test x$with_libpng != xno && test -z "$LIBPNG"; then
     AC_MSG_ERROR([
*** Checks for PNG library failed. You can build without it by passing 
*** --without-libpng to configure but you won't be able to use PNGs then.])
  fi

AC_SUBST(PNG)
AC_SUBST(LIBPNG)


#################
# Check for libaa
#################

if test -z "$LIBAA"; then
  AC_CHECK_LIB(aa, aa_printf,
    [AC_CHECK_HEADER(aalib.h,
      AA='aa'; LIBAA='-laa',
      [AC_MSG_WARN(*** AA plug-in will not be built (AA header file not found) ***)])],
    [AC_MSG_WARN(*** AA plug-in will not be built (AA library not found) ***)])
fi

AC_SUBST(AA)
AC_SUBST(LIBAA)


###################
# Check for libmpeg
###################

if test -z "$LIBMPEG"; then
  AC_CHECK_LIB(mpeg, GetMPEGFrame,
    [AC_CHECK_HEADER(mpeg.h,
       MPEG='mpeg'; LIBMPEG='-lmpeg'; GAP_DECODE_MPEG='gap_decode_mpeg',
       [AC_MSG_WARN(*** MPEG plug-in will not be built (MPEG header file not found) ***)])],
    [AC_MSG_WARN(*** MPEG plug-in will not be built (MPEG library not found) ***)])
fi

AC_SUBST(MPEG)
AC_SUBST(LIBMPEG)
AC_SUBST(GAP_DECODE_MPEG)


##################
# Check for libxpm
##################

gimp_save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $X_LIBS"
if test "$gdk_target" = x11; then
  lib_X11=-lX11
fi
if test -z "$LIBXPM"; then
  AC_CHECK_LIB(Xpm, XpmReadFileToXpmImage,
    [AC_CHECK_HEADER(X11/xpm.h,
      XPM='xpm'; LIBXPM="$X_LIBS $X_PRE_LIBS $lib_X11 -lXpm",
      [AC_MSG_WARN(*** XPM plug-in will not be built (XPM header file not found) ***)])],
    [AC_MSG_WARN(*** XPM plug-in will not be built (XPM library not found) ***)], $X_PRE_LIBS $lib_X11)
fi
LDFLAGS="$gimp_save_LDFLAGS"

AC_SUBST(XPM)
AC_SUBST(LIBXPM)


####################
# Check for gtkhtml2
####################

PKG_CHECK_MODULES(GTKHTML2, libgtkhtml-2.0 >= $GTKHTML2_REQUIRED_VERSION,
  HELPBROWSER=helpbrowser,
  AC_MSG_WARN([*** Help browser plug-in will not be built (GtkHtml2 not found) ***]))
AC_SUBST(GTKHTML2_CFLAGS)
AC_SUBST(GTKHTML2_LIBS)
AC_SUBST(HELPBROWSER)


####################
# Check for sendmail
####################

AC_ARG_WITH(sendmail,[  --with-sendmail=DIR     set sendmail command location])

if test "x$with_sendmail" != "x"; then
  sendmail_path=$with_sendmail
else
  sendmail_path=$PATH:/usr/sbin:/usr/lib
fi

AC_PATH_PROG(SENDMAIL, sendmail, , $sendmail_path)
if test "x$SENDMAIL" != "x"; then
  AC_DEFINE_UNQUOTED(SENDMAIL, "$SENDMAIL", [The MTA used the mail plug-in.])
fi


######################
# Check for gimp-print
######################

AC_ARG_ENABLE(print, [  --disable-print         build without print support (requires libgimpprint)])
  if test "x$enable_print" != "xno"; then
  AC_PATH_PROG(PRINT_CONFIG, gimpprint-config, no)
    if test "x$PRINT_CONFIG" != "xno"; then
      AC_MSG_CHECKING(for gimpprint >= $GIMPPRINT_REQUIRED_VERSION)
      print_version=`$PRINT_CONFIG --version`
      if expr $print_version \>= $GIMPPRINT_REQUIRED_VERSION >/dev/null; then
        AC_MSG_RESULT([yes (version $print_version)])
        PRINT=print
        PRINT_LIBS=`$PRINT_CONFIG --libs`
        PRINT_CFLAGS=`$PRINT_CONFIG --cflags`
      else
        AC_MSG_WARN([
*** libgimpprint version $print_version is too old.
*** You need at least version $GIMPPRINT_REQUIRED_VERSION.])
      fi
    fi
  fi

if test x$enable_print != xno && test -z "$PRINT"; then
  AC_MSG_ERROR([
*** Check for libgimpprint failed. You can download it from 
*** http://gimp-print.sourceforge.net/ or you can build without it by passing 
*** --disable-print to configure (but you won't be able to print then).])
fi

AC_SUBST(PRINT)
AC_SUBST(PRINT_LIBS)
AC_SUBST(PRINT_CFLAGS)


################
# Check for perl
################

dnl This is for the gimp-perl plug-in
AC_ARG_ENABLE(perl, [  --enable-perl           build perl extension [by default disabled]
  --enable-perl[=prefix]  use specified prefix for perl (see INSTALL)], , enable_perl=no)

AC_ARG_WITH(pdbgen, [  --with-pdbgen           use 'pdbgen' code generation tool],
,
with_pdbgen=$enable_maintainer_mode)

if test "x$enable_perl" != xno || test "x$with_pdbgen" = xyes ; then
   AC_PATH_PROGS(PERL,perl5 perl perl5.005 perl5.004,perl)
fi

AM_CONDITIONAL(WITH_PDBGEN, test x$with_pdbgen = xyes)
AM_CONDITIONAL(WITH_AUTHORSGEN, test x$enable_maintainer_mode = xyes)


rm -f plug-ins/perl/config.status

if test "x$enable_perl" != xno; then
   AC_MSG_CHECKING(for perl version >= 5.004_04)
   if test "`$PERL -e 'print $]>=5.004_04'`" = "1"; then
      AC_MSG_RESULT(yes)
      
      dnl perl does not allow VPATH builds (yet)
      if test ! -f plug-ins/perl/Makefile.PL; then
         mkdir plug-ins || true
         cp -r $srcdir/plug-ins/perl plug-ins/perl
      fi
      
      dnl these are gross hacks
      GIMP_CFLAGS_NOUI="-I\$topdir/../.. $GLIB_CFLAGS $GTK_CFLAGS"
      GIMP_CFLAGS="$GIMP_CFLAGS_NOUI"
      GIMP_LIBS_NOUI="-L\$topdir/../../libgimp/.libs -L\$topdir/../../libgimp -lgimp-$LT_RELEASE -L\$topdir/../../libgimpcolor/.libs -L\$topdir/../../libgimpcolor -lgimpcolor-$LT_RELEASE -L\$topdir/../../libgimpbase/.libs -L\$topdir/../../libgimpbase -lgimpbase-$LT_RELEASE $GLIB_LIBS $LIBS"
      GIMP_LIBS="$GIMP_LIBS_NOUI -lgimpui-$LT_RELEASE"
      GIMPTOOL="../../gimptool-1.3"
      IN_GIMP=1
      EXTENSIVE_TESTS=0

      dnl include the autoconf fragment from there
      sinclude(plug-ins/perl/configure.frag)

      dnl we ignore prefix
      if test -n "$enable_perl" && test "x$enable_perl" != xyes; then
         perl_prefix="PREFIX=$enable_perl"
      fi
      cat >plug-ins/perl/config.status <<EOF
      echo invoking perl for configuration...
      $PERL Makefile.PL --writemakefile $perl_prefix
EOF
      GIMP_PERL=perl
      GIMP_PERL_PO=plug-ins/perl/po
   else
      GIMP_PERL=
      GIMP_PERL_PO=
      AC_MSG_RESULT(no)
      AC_MSG_WARN(*** gimp-perl plug-in won't be build (perl5.004_04 or higher required) ***)
   fi
fi

AC_SUBST(GIMP_PERL)
AC_SUBST(GIMP_PERL_PO)


##################
# Check for python
##################

dnl Pygimp configure stuff ...
dnl AC_ARG_ENABLE(python,
dnl [  --disable-python        do not build python extension],,[enable_python=no])
dnl build_python=false
dnl if test "x$enable_python" != xno; then
dnl   AM_PATH_PYTHON
dnl   if test "x$PYTHON" != xno; then
dnl     AM_INIT_PYEXEC_MOD
dnl     if test "x$am_cv_python_makefile" != xno; then
dnl       PYGIMP_CFLAGS_NOUI="-I\$(top_srcdir) $GLIB_CFLAGS"
dnl       PYGIMP_LIBS_NOUI="-L\$(top_builddir)/libgimp/.libs -lgimp $GLIB_LIBS"
dnl 
dnl       build_python=true
dnl       AM_CHECK_PYMOD(gtk,,,build_python=false)
dnl     fi
dnl   fi
dnl fi
dnl AC_SUBST(PYGIMP_CFLAGS_NOUI)
dnl AC_SUBST(PYGIMP_LIBS_NOUI)
dnl AM_CONDITIONAL(BUILD_PYTHON, $build_python)
  

####################################################
# Determine where to install the GNOME2 desktop file
####################################################

AC_ARG_WITH(gnome-desktop, [  --with-gnome-desktop=PATH     install a gimp.desktop link here [default=auto]])

if test "x$with_gnome_desktop" != x; then
  GNOME_DESKTOP_PATH=$with_gnome_desktop
else
  GNOME_DESKTOP_PATH="$datadir/applications"
fi

AM_CONDITIONAL(GNOME_DESKTOP_PATH, test "x$with_gnome_desktop" != xno)
AC_SUBST(GNOME_DESKTOP_PATH)


######################################
# Checks for gtk-doc and docbook-tools
######################################

AC_ARG_WITH(html-dir, [  --with-html-dir=PATH    path to installed docs ])

if test "x$with_html_dir" = "x" ; then
  HTML_DIR='${datadir}/gtk-doc/html'
else
  HTML_DIR=$with_html_dir
fi

AC_SUBST(HTML_DIR)

AC_CHECK_PROG(GTKDOC, gtkdoc-mkdb, true, false)

if $GTKDOC ; then 
    gtk_doc_version=`gtkdoc-mkdb --version`
    AC_MSG_CHECKING([gtk-doc version ($gtk_doc_version) >= $GTKDOC_REQUIRED_VERSION])
    if perl <<EOF ; then
      exit (("$gtk_doc_version" =~ /^[[0-9]]+\.[[0-9]]+$/) &&
            ("$gtk_doc_version" >= "$GTKDOC_REQUIRED_VERSION") ? 0 : 1);
EOF
      AC_MSG_RESULT(yes)
   else
      AC_MSG_RESULT(no)
      GTKDOC=false
   fi
fi

AC_CHECK_PROG(DB2HTML, db2html, true, false)
AM_CONDITIONAL(HAVE_DOCBOOK, $DB2HTML)

dnl Make people enable the gtk-doc stuff explicitely.
AC_ARG_ENABLE(gtk-doc, [  --enable-gtk-doc        use gtk-doc to build documentation [default=no]], enable_gtk_doc="$enableval", enable_gtk_doc=auto)

if test x$enable_gtk_doc = xyes ; then
  if test x$GTKDOC != xtrue ; then
    enable_gtk_doc=no 
  fi
fi

dnl NOTE: We need to use a separate automake conditional for this
dnl       to make this work with the tarballs.
AM_CONDITIONAL(ENABLE_GTK_DOC, test x$enable_gtk_doc = xyes)


#########################################
# Allow to configure the gimp environment
#########################################

AC_ARG_ENABLE(debug, [  --enable-default-binary install this as the default gimp binary [default=no]], , enable_default_binary=no)

AM_CONDITIONAL(DEFAULT_BINARY, test x$enable_default_binary = xyes)


dnl Possibly change default gimpdir from .gimp
gimpdir=.$PACKAGE-$GIMP_MAJOR_VERSION.$GIMP_MINOR_VERSION
AC_ARG_ENABLE(gimpdir, [  --enable-gimpdir=DIR    change default gimpdir from .gimp-1.3 to DIR],
if eval "test x$enable_gimpdir != x"; then
  if eval "test x$enable_gimpdir != xyes"; then
    gimpdir=$enable_gimpdir
  fi
fi)

gimpdatadir=$datadir/$PACKAGE/$GIMP_MAJOR_VERSION.$GIMP_MINOR_VERSION
gimpplugindir=$libdir/$PACKAGE/$GIMP_MAJOR_VERSION.$GIMP_MINOR_VERSION
gimpsysconfdir=$sysconfdir/$PACKAGE/$GIMP_MAJOR_VERSION.$GIMP_MINOR_VERSION

localedir='${prefix}/${DATADIRNAME}/locale'

AC_SUBST(gimpdir)
AC_SUBST(gimpdatadir)
AC_SUBST(gimpplugindir)
AC_SUBST(gimpsysconfdir)
AC_SUBST(localedir)


############################
# Some defines for the build
############################

GIMPINSTALL=
if test "$INSTALL" = "$ac_install_sh"; then
  GIMPINSTALL="gimpinstall-1.3"
fi
AC_SUBST(GIMPINSTALL)

dnl FIXME: Do we need to do this?
if test -n "$DISTMAKE"; then
  TIFF=tiff JPEG=jpeg PNG=png AA=aa MPEG=mpeg PRINT=print
  WEBBROWSER=webbrowser HELPBROWSER=helpbrowser 
  XJT=xjt XPM=xpm
fi

AM_CONDITIONAL(STATICLIBS, test x$enable_static = xyes)

dnl a tuned version of glib-mkenums
GIMP_MKENUMS="\$(top_srcdir)/tools/gimp-mkenums"
AC_SUBST(GIMP_MKENUMS)

dnl autogenerator for proxy objects
GIMP_MKPROXY="\$(top_srcdir)/tools/gimp-mkproxy"
AC_SUBST(GIMP_MKPROXY)


##########################################
# Default to disable deprecated GTK+ stuff
##########################################

CPPFLAGS="${CPPFLAGS} -DG_DISABLE_DEPRECATED -DGDK_PIXBUF_DISABLE_DEPRECATED -DGDK_DISABLE_DEPRECATED -DGTK_DISABLE_DEPRECATED"


##################
# configure output
##################

dnl easy way to skip the plug-in build
GIMP_PLUGINS=plug-ins
GIMP_MODULES=modules
AC_SUBST(GIMP_PLUGINS)
AC_SUBST(GIMP_MODULES)

dnl These are not built nor included in the tarball for the time being.
dnl plug-ins/perl/config.pl
dnl plug-ins/gap/Makefile
dnl plug-ins/gdyntext/Makefile
dnl plug-ins/perl/po/Makefile.in
dnl plug-ins/plugin-helper/Makefile
dnl plug-ins/tools/common/Makefile

AC_OUTPUT([
build/Makefile
build/win32/Makefile
build/win32/dirent/Makefile
tools/Makefile
tools/authorsgen/Makefile
tools/pdbgen/Makefile
regexrepl/Makefile
libgimp/Makefile
libgimp/makefile.mingw
libgimpbase/gimpversion.h
libgimpbase/Makefile
libgimpbase/makefile.mingw
libgimpcolor/Makefile
libgimpcolor/makefile.mingw
libgimpmath/Makefile
libgimpmath/makefile.mingw
libgimpproxy/Makefile
libgimptool/Makefile
libgimpwidgets/Makefile
libgimpwidgets/makefile.mingw
app/Makefile
app/makefile.mingw
app/base/Makefile
app/config/Makefile
app/core/Makefile
app/display/Makefile
app/file/Makefile
app/gui/Makefile
app/paint/Makefile
app/paint-funcs/Makefile
app/pdb/Makefile
app/plug-in/Makefile
app/tools/Makefile
app/vectors/Makefile
app/widgets/Makefile
app/xcf/Makefile
plug-ins/Makefile
plug-ins/makefile.mingw
plug-ins/libgck/Makefile
plug-ins/libgck/gck/Makefile
plug-ins/dbbrowser/Makefile
plug-ins/script-fu/Makefile
plug-ins/script-fu/scripts/Makefile
plug-ins/webbrowser/Makefile
plug-ins/xjt/Makefile
plug-ins/FractalExplorer/Makefile
plug-ins/FractalExplorer/fractalexplorer-examples/Makefile
plug-ins/Lighting/Makefile
plug-ins/MapObject/Makefile
plug-ins/bmp/Makefile
plug-ins/common/Makefile
plug-ins/faxg3/Makefile
plug-ins/fits/Makefile
plug-ins/flame/Makefile
plug-ins/fp/Makefile
plug-ins/gfig/Makefile
plug-ins/gfig/gfig-examples/Makefile
plug-ins/gflare/Makefile
plug-ins/gflare/gflares/Makefile
plug-ins/gfli/Makefile
plug-ins/gimpressionist/Makefile
plug-ins/gimpressionist/Brushes/Makefile
plug-ins/gimpressionist/Paper/Makefile
plug-ins/gimpressionist/Presets/Makefile
plug-ins/helpbrowser/Makefile
plug-ins/ifscompose/Makefile
plug-ins/imagemap/Makefile
plug-ins/maze/Makefile
plug-ins/mosaic/Makefile
plug-ins/pagecurl/Makefile
plug-ins/print/Makefile
plug-ins/rcm/Makefile
plug-ins/sel2path/Makefile
plug-ins/sgi/Makefile
plug-ins/tools/Makefile
modules/Makefile
modules/makefile.mingw
devel-docs/Makefile
devel-docs/libgimp/Makefile
devel-docs/libgimpbase/Makefile
devel-docs/libgimpcolor/Makefile
devel-docs/libgimpmath/Makefile
devel-docs/libgimpwidgets/Makefile
docs/Makefile
docs/gimp-1.3.1
docs/gimprc-1.3.5
docs/gimptool-1.3.1
docs/gimp-remote-1.3.1
tips/Makefile
pixmaps/Makefile
cursors/Makefile
themes/Makefile
themes/Default/Makefile
themes/Default/images/Makefile
themes/Default/images/preferences/Makefile
data/Makefile
data/misc/Makefile
data/misc/gimp.desktop.in
data/images/Makefile
data/brushes/Makefile
data/gradients/Makefile
data/palettes/Makefile
data/patterns/Makefile
etc/Makefile
etc/gimprc
etc/gimprc_user
m4macros/Makefile
po/Makefile.in
po-libgimp/Makefile.in
po-plug-ins/Makefile.in
po-script-fu/Makefile.in
gimptool-1.3
gimp-1.3.pc
gimpui-1.3.pc
gimp.spec
Makefile
],[
   chmod +x gimptool-1.3

   sed -e "/POTFILES =/r po-libgimp/POTFILES" po-libgimp/Makefile.in > po-libgimp/Makefile
   sed -e "/POTFILES =/r po-plug-ins/POTFILES" po-plug-ins/Makefile.in > po-plug-ins/Makefile
   sed -e "/POTFILES =/r po-script-fu/POTFILES" po-script-fu/Makefile.in > po-script-fu/Makefile

#   sed -e "/POTFILES =/r plug-ins/perl/po/POTFILES" plug-ins/perl/po/Makefile.in > plug-ins/perl/po/Makefile

   case "$CONFIG_FILES" in
   *plug-ins/perl*)
      if test -f plug-ins/perl/config.status; then
         ( cd plug-ins/perl; ${CONFIG_SHELL-/bin/sh} config.status )
      fi
      ;;
   esac
])