configure.in 49.4 KB
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# Process this file with autoconf to produce a configure script.
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# require autoconf 2.54
AC_PREREQ(2.54)

# Making releases:
#   GTK_MICRO_VERSION += 1;
#   GTK_INTERFACE_AGE += 1;
#   GTK_BINARY_AGE += 1;
# if any functions have been added, set GTK_INTERFACE_AGE to 0.
# if backwards compatibility has been broken,
# set GTK_BINARY_AGE and GTK_INTERFACE_AGE to 0.

m4_define([gtk_major_version], [2])
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m4_define([gtk_minor_version], [7])
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m4_define([gtk_micro_version], [6])
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m4_define([gtk_version],
          [gtk_major_version.gtk_minor_version.gtk_micro_version])
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m4_define([gtk_interface_age], [3])
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m4_define([gtk_binary_age],
          [m4_eval(100 * gtk_minor_version + gtk_micro_version)])
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# This is the X.Y used in -lgtk-FOO-X.Y
m4_define([gtk_api_version], [2.0])

# Define a string for the earliest version that this release has
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# backwards binary compatibility with for all interfaces a module
# might. Unless we add module-only API with lower stability
# guarantees, this should be unchanged until we break binary compat
# for GTK+.
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#
#GTK_BINARY_VERSION=$GTK_MAJOR_VERSION.$GTK_MINOR_VERSION.$LT_CURRENT
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m4_define([gtk_binary_version], [2.4.0])
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# required versions of other packages
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m4_define([glib_required_version], [2.7.1])
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m4_define([pango_required_version], [1.9.0])
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m4_define([atk_required_version], [1.0.1])
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m4_define([cairo_required_version], [0.6])
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AC_INIT([gtk+], [gtk_version],
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        [http://bugzilla.gnome.org/enter_bug.cgi?product=gtk%2B],
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	[gtk+])

AC_CONFIG_SRCDIR([gdk/gdktypes.h])

# Save this value here, since automake will set cflags later
cflags_set=${CFLAGS+set}

AM_INIT_AUTOMAKE(no-define)
AM_CONFIG_HEADER(config.h)
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#
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# For each of the libraries we build, we define the following
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# substituted variables:
#
# foo_PACKAGES:     pkg-config packages this library requires
# foo_EXTRA_LIBS:   Libraries this module requires not pulled in by pkg-config
# foo_EXTRA_CFLAGS: cflags this module requires not pulled in by pkg-config
# foo_DEP_LIBS:     All libraries this module requires
# foo_DEP_CFLAGS:   All cflags this module requires
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GTK_MAJOR_VERSION=gtk_major_version
GTK_MINOR_VERSION=gtk_minor_version
GTK_MICRO_VERSION=gtk_micro_version
GTK_INTERFACE_AGE=gtk_interface_age
GTK_BINARY_AGE=gtk_binary_age
GTK_VERSION=gtk_version
GTK_API_VERSION=gtk_api_version
GTK_BINARY_VERSION=gtk_binary_version
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AC_SUBST(GTK_MAJOR_VERSION)
AC_SUBST(GTK_MINOR_VERSION)
AC_SUBST(GTK_MICRO_VERSION)
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AC_SUBST(GTK_INTERFACE_AGE)
AC_SUBST(GTK_BINARY_AGE)
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AC_SUBST(GTK_API_VERSION)
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AC_SUBST(GTK_VERSION)
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AC_SUBST(GTK_BINARY_VERSION)
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# libtool versioning
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#LT_RELEASE=$GTK_MAJOR_VERSION.$GTK_MINOR_VERSION
#LT_CURRENT=`expr $GTK_MICRO_VERSION - $GTK_INTERFACE_AGE`
#LT_REVISION=$GTK_INTERFACE_AGE
#LT_AGE=`expr $GTK_BINARY_AGE - $GTK_INTERFACE_AGE`
#LT_CURRENT_MINUS_AGE=`expr $LT_CURRENT - $LT_AGE`

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m4_define([lt_current], [m4_eval(100 * gtk_minor_version + gtk_micro_version - gtk_interface_age)])
m4_define([lt_revision], [gtk_interface_age])
m4_define([lt_age], [m4_eval(gtk_binary_age - gtk_interface_age)])
LT_VERSION_INFO="lt_current:lt_revision:lt_age"
LT_CURRENT_MINUS_AGE=m4_eval(lt_current - lt_age)
AC_SUBST(LT_VERSION_INFO)
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AC_SUBST(LT_CURRENT_MINUS_AGE)
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#
# gdk-pixbuf gets versioned separately, and for now, using standard
# libtool versioning, not GTK+-style versioning
#
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GDK_PIXBUF_MAJOR=gtk_major_version
GDK_PIXBUF_MINOR=gtk_minor_version
GDK_PIXBUF_MICRO=gtk_micro_version
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GDK_PIXBUF_VERSION="${GDK_PIXBUF_MAJOR}.${GDK_PIXBUF_MINOR}.${GDK_PIXBUF_MICRO}"
AC_SUBST(GDK_PIXBUF_MAJOR)
AC_SUBST(GDK_PIXBUF_MINOR)
AC_SUBST(GDK_PIXBUF_MICRO)
AC_SUBST(GDK_PIXBUF_VERSION)

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GETTEXT_PACKAGE=gtk20
AC_SUBST(GETTEXT_PACKAGE)
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AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE")
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AC_CANONICAL_HOST

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MATH_LIB=-lm
AC_MSG_CHECKING([for native Win32])
case "$host" in
  *-*-mingw*)
    os_win32=yes
    MATH_LIB=
    ;;
  *)
    os_win32=no
    ;;
esac
AC_MSG_RESULT([$os_win32])
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case $host in
  *-*-linux*)
    os_linux=yes
    ;;
esac
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dnl Initialize libtool
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AC_PROG_CC
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AM_DISABLE_STATIC
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if test "$os_win32" = "yes"; then
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  if test x$enable_static = xyes -o x$enable_static = x; then
    AC_MSG_WARN([Disabling static library build, must build as DLL on Windows.])
    enable_static=no
  fi
  if test x$enable_shared = xno; then
    AC_MSG_WARN([Enabling shared library build, must build as DLL on Windows.])
  fi
  enable_shared=yes
fi

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AC_LIBTOOL_WIN32_DLL
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AM_PROG_LIBTOOL

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# Make sure we use 64-bit versions of various file stuff.
AC_SYS_LARGEFILE

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AM_PROG_AS
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AC_PATH_PROG(NM, nm, nm)
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dnl Initialize maintainer mode
AM_MAINTAINER_MODE

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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")

AM_CONDITIONAL(OS_WIN32, test "$os_win32" = "yes")
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AM_CONDITIONAL(OS_UNIX, test "$os_win32" != "yes")
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AM_CONDITIONAL(OS_LINUX, test "$os_linux" = "yes")
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if test "$os_win32" = "yes"; then
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  AC_CHECK_TOOL(WINDRES, windres, no)
  if test "$WINDRES" = no; then
    AC_MSG_ERROR([*** Could not find an implementation of windres in your PATH.])
  fi
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  AC_CHECK_PROG(ms_librarian, lib.exe, yes, no)
fi
AM_CONDITIONAL(MS_LIB_AVAILABLE, test x$ms_librarian = xyes)

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m4_define([debug_default],
          m4_if(m4_eval(gtk_minor_version % 2), [1], [yes], [minimum]))
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dnl declare --enable-* args and collect ac_help strings
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AC_ARG_ENABLE(debug,
              AC_HELP_STRING([--enable-debug=@<:@no/minimum/yes@:>@],
                             [turn on debugging @<:@default=debug_default@:>@]),,
              enable_debug=debug_default)
AC_ARG_ENABLE(shm,
              [AC_HELP_STRING([--enable-shm],
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                              [support shared memory if available [default=yes]])],,
              [enable_shm="yes"])
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AC_ARG_ENABLE(xkb,
              [AC_HELP_STRING([--enable-xkb],
                              [support XKB [default=maybe]])],,
              [enable_xkb="maybe"])
AC_ARG_ENABLE(rebuilds,
              [AC_HELP_STRING([--disable-rebuilds],
                              [disable all source autogeneration rules])],,
              [enable_rebuilds=yes])
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AC_ARG_ENABLE(visibility,
              [AC_HELP_STRING([--disable-visibility],
                              [don't use ELF visibility attributes])],,
              [enable_visibility=yes])
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AC_ARG_WITH(xinput,
            [AC_HELP_STRING([--with-xinput=@<:@no/yes@:>@], [support XInput])])

AC_ARG_WITH(wintab,
            [AC_HELP_STRING([--with-wintab=DIRECTORY],
                            [use Wintab API with win32 backend])])
AC_ARG_WITH(ie55,
            [AC_HELP_STRING([--with-ie55=DIRECTORY],
                            [IE5.5 libs and headers (for Active IMM)])])
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if test "$platform_win32" = yes; then
  gdktarget=win32
else
  gdktarget=x11
fi

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AC_ARG_WITH(gdktarget, [  --with-gdktarget=[[x11/linux-fb/win32]] select non-default GDK target],
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	gdktarget=$with_gdktarget)

AC_SUBST(gdktarget)
case $gdktarget in
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  x11|linux-fb|win32) ;;
  *) AC_MSG_ERROR([Invalid target for GDK: use x11, linux-fb or win32.]);;
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esac

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gdktargetlib=libgdk-$gdktarget-$GTK_API_VERSION.la
gtktargetlib=libgtk-$gdktarget-$GTK_API_VERSION.la
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AC_SUBST(gdktargetlib)
AC_SUBST(gtktargetlib)

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AC_ARG_ENABLE(shadowfb,
              [AC_HELP_STRING([--disable-shadowfb],
                              [disable shadowfb support for linux-fb])],,
              [enable_shadowfb=yes])
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AC_ARG_ENABLE(fbmanager,
              [AC_HELP_STRING([--enable-fbmanager],
                              [enable framebuffer manager support (GtkFB)])],,
              enable_fbmanager=no)
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if test "x$enable_debug" = "xyes"; then
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  test "$cflags_set" = set || CFLAGS="$CFLAGS -g"
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  GTK_DEBUG_FLAGS="-DG_ENABLE_DEBUG"
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else
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  if test "x$enable_debug" = "xno"; then
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    GTK_DEBUG_FLAGS="-DG_DISABLE_ASSERT -DG_DISABLE_CHECKS -DG_DISABLE_CAST_CHECKS"
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  else
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    GTK_DEBUG_FLAGS="-DG_DISABLE_CAST_CHECKS"
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  fi
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fi

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if test "x$enable_visibility" = "xno"; then
  GTK_DEBUG_FLAGS="$GTK_DEBUG_FLAGS -DDISABLE_VISIBILITY"
fi


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AC_DEFINE_UNQUOTED(GTK_COMPILED_WITH_DEBUGGING, "${enable_debug}")

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# Build time sanity check...
AM_SANITY_CHECK

# Checks for programs.
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AC_ISC_POSIX
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AM_PROG_CC_STDC
AC_PROG_INSTALL
AC_PROG_MAKE_SET

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changequote(,)dnl
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if test "x$GCC" = "xyes"; then
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  case " $CFLAGS " in
  *[\ \	]-Wall[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wall" ;;
  esac
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  if test "x$enable_ansi" = "xyes"; then
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    case " $CFLAGS " in
    *[\ \	]-ansi[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -ansi" ;;
    esac

    case " $CFLAGS " in
    *[\ \	]-pedantic[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -pedantic" ;;
    esac
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  fi
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fi
changequote([,])dnl
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# Ensure MSVC-compatible struct packing convention is used when
# compiling for Win32 with gcc.
# What flag to depends on gcc version: gcc3 uses "-mms-bitfields", while
# gcc2 uses "-fnative-struct".
if test x"$os_win32" = xyes; then
  if test x"$GCC" = xyes; then
    msnative_struct=''
    AC_MSG_CHECKING([how to get MSVC-compatible struct packing])
    if test -z "$ac_cv_prog_CC"; then
      our_gcc="$CC"
    else
      our_gcc="$ac_cv_prog_CC"
    fi
    case `$our_gcc --version | sed -e 's,\..*,.,' -e q` in
      2.)
	if $our_gcc -v --help 2>/dev/null | grep fnative-struct >/dev/null; then
	  msnative_struct='-fnative-struct'
	fi
	;;
      *)
	if $our_gcc -v --help 2>/dev/null | grep ms-bitfields >/dev/null; then
	  msnative_struct='-mms-bitfields'
	fi
	;;
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    esac
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    if test x"$msnative_struct" = x ; then
      AC_MSG_RESULT([no way])
      AC_MSG_WARN([produced libraries might be incompatible with MSVC-compiled code])
    else
      CFLAGS="$CFLAGS $msnative_struct"
      AC_MSG_RESULT([${msnative_struct}])
    fi
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  fi
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fi

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

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## Initial sanity check, done here so that users get told they 
## have the wrong dependencies as early in the process as possible.
## Later on we actually use the cflags/libs from separate pkg-config
## calls. Oh, also the later pkg-config calls don't include 
## the version requirements since those make the module lists 
## annoying to construct
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PKG_CHECK_MODULES(BASE_DEPENDENCIES,
  [glib-2.0 >= glib_required_version dnl
   atk >= atk_required_version dnl
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   pango >= pango_required_version dnl
   cairo >= cairo_required_version])
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if test "$os_win32" != yes; then
    # libtool option to control which symbols are exported
    # right now, symbols starting with _ are not exported
    LIBTOOL_EXPORT_OPTIONS='-export-symbols-regex "^[[^_]].*"'
else
    # We currently use .def files on Windows (for gdk-pixbuf, gdk and gtk)
    LIBTOOL_EXPORT_OPTIONS=
fi
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AC_SUBST(LIBTOOL_EXPORT_OPTIONS)

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dnl ******************************************************
dnl * See whether to include shared library dependencies *
dnl ******************************************************

AC_ARG_ENABLE(explicit-deps, 
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              [AC_HELP_STRING([--enable-explicit-deps=@<:@yes/no/auto@:>@],
                              [use explicit dependencies in .pc files [default=auto]])],,
              [enable_explicit_deps=auto])
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AC_MSG_CHECKING([Whether to write dependencies into .pc files])
case $enable_explicit_deps in
  auto)
    deplib_check_method=`(./libtool --config; echo eval echo \\$deplib_check_method) | sh`
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    if test "X$deplib_check_method" = Xnone || test "x$enable_static" = xyes ; then
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      enable_explicit_deps=yes  
    else
      enable_explicit_deps=no  
    fi
  ;;
  yes|no) 
  ;;
  *) AC_MSG_ERROR([Value given to --enable-explicit-deps must be one of yes, no or auto])
  ;;
esac
AC_MSG_RESULT($enable_explicit_deps)

AM_CONDITIONAL(DISABLE_EXPLICIT_DEPS, test $enable_explicit_deps = no)

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# define a MAINT-like variable REBUILD which is set if Perl
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# and awk are found, so autogenerated sources can be rebuilt

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AC_PATH_PROGS(PERL, perl5 perl)
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# We would like indent, but don't require it.
AC_CHECK_PROG(INDENT, indent, indent)

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REBUILD=\#
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if test "x$enable_rebuilds" = "xyes" && \
     test -n "$PERL" && \
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     $PERL -e 'exit !($] >= 5.002)' > /dev/null 2>&1 ; then
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  REBUILD=
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fi
AC_SUBST(REBUILD)
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AC_CHECK_FUNCS(lstat mkstemp flockfile)

# _NL_TIME_FIRST_WEEKDAY is an enum and not a define
AC_MSG_CHECKING([for _NL_TIME_FIRST_WEEKDAY])
AC_TRY_LINK([#include <langinfo.h>], [
char c;
c = *((unsigned char *)  nl_langinfo(_NL_TIME_FIRST_WEEKDAY));
], gtk_ok=yes, gtk_ok=no)
AC_MSG_RESULT($gtk_ok)
if test "$gtk_ok" = "yes"; then
  AC_DEFINE([HAVE__NL_TIME_FIRST_WEEKDAY], [1],
	    [Define if _NL_TIME_FIRST_WEEKDAY is available])
fi
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# sigsetjmp is a macro on some platforms, so AC_CHECK_FUNCS is not reliable
AC_MSG_CHECKING(for sigsetjmp)
AC_TRY_LINK([#include <setjmp.h>], [
sigjmp_buf env;
sigsetjmp(env, 0);
], gtk_ok=yes, gtk_ok=no)
AC_MSG_RESULT($gtk_ok)
if test "$gtk_ok" = "yes"; then
  AC_DEFINE(HAVE_SIGSETJMP)
fi
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# i18n stuff
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# TRANSLATORS:  Please note that gtk+ has both po/ and po-properties/
# directories.  If you add a new language to ALL_LINGUAS, please make
# sure that both po/ and po-properties/ have .po files that correspond
# to your language.  If you only add one to po/, the build will break
# in po-properties/.
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ALL_LINGUAS="af am ar az az_IR be bg bn br bs ca cs cy da de el en_CA en_GB es et eu fa fi fr ga gl gu he hi hr hu hy ia id is it ja ko li lt lv mi mk ml mn mr ms nb ne nl nn no nso pa pl pt pt_BR ro ru rw sk sl sq sr sr@ije sr@Latn sv ta th tk tr uk uz uz@Latn vi wa xh yi zh_CN zh_TW"
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AM_GLIB_GNU_GETTEXT
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LIBS="$LIBS $INTLLIBS"
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AC_OUTPUT_COMMANDS([case "$CONFIG_FILES" in *po-properties/Makefile.in*)
        sed -e "/POTFILES =/r po-properties/POTFILES" po-properties/Makefile.in > po-properties/Makefile
      esac])
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AM_GLIB_DEFINE_LOCALEDIR(GTK_LOCALEDIR)
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dnl The DU4 header files don't provide library prototypes unless 
dnl -std1 is given to the native cc.
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AC_MSG_CHECKING([for extra flags to get ANSI library prototypes])
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gtk_save_LIBS=$LIBS
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LIBS="$LIBS -lm"
AC_TRY_RUN([#include <math.h>
             int main (void) { return (log(1) != log(1.)); }],
     AC_MSG_RESULT(none needed),
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     gtk_save_CFLAGS="$CFLAGS"
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     CFLAGS="$CFLAGS -std1"
     AC_TRY_RUN([#include <math.h>
	         int main (void) { return (log(1) != log(1.)); }],
         AC_MSG_RESULT(-std1),
         AC_MSG_RESULT()
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         CFLAGS="$gtk_save_CFLAGS"
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         AC_MSG_WARN(
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                [No ANSI prototypes found in library. (-std1 didn't work.)]),
	 true
     ),
     AC_MSG_RESULT(none needed)
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)
LIBS=$gtk_save_LIBS

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AC_MSG_CHECKING(for the BeOS)
case $host in
  *-*-beos*)
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    AC_MSG_RESULT(yes)
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    MATH_LIB=
  ;;
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  *)
    AC_MSG_RESULT(no)
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  ;;
esac
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#
# see bug 162979
#
AC_MSG_CHECKING(for HP-UX)
case $host_os in
  hpux9* | hpux10* | hpux11*)
    AC_MSG_RESULT(yes)
    CFLAGS="$CFLAGS -DHPPEX -DSHMLINK"
  ;;
  *)
    AC_MSG_RESULT(no)
  ;;
esac
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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),
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  gtk_save_CFLAGS="$CFLAGS"
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  CFLAGS="$CFLAGS -posix"
  AC_TRY_COMPILE([#include <dirent.h>], [DIR *dir;],
    AC_MSG_RESULT(-posix),
    AC_MSG_RESULT()
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    CFLAGS="$gtk_save_CFLAGS"
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    AC_MSG_WARN([Could not determine POSIX flag. (-posix didn't work.)])))

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#
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# Run AM_PATH_GLIB_2_0 to make sure that GLib is installed and working
# 
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GLIB_PACKAGES="gobject-2.0 gmodule-no-export-2.0"
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AM_PATH_GLIB_2_0(glib_required_version, :,
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  AC_MSG_ERROR([
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*** GLIB glib_required_version or better is required. The latest version of 
*** GLIB is always available from ftp://ftp.gtk.org/pub/gtk/.]),
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  gobject gmodule-no-export gthread)
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dnl
dnl Check for bind_textdomain_codeset, including -lintl if GLib brings it in.
dnl
gtk_save_LIBS=$LIBS
LIBS="$LIBS $GLIB_LIBS"
AC_CHECK_FUNCS(bind_textdomain_codeset)
LIBS=$gtk_save_LIBS

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AC_CHECK_HEADERS(pwd.h, AC_DEFINE(HAVE_PWD_H))
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AC_CHECK_HEADERS(sys/time.h, AC_DEFINE(HAVE_SYS_TIME_H))
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AC_CHECK_HEADERS(unistd.h, AC_DEFINE(HAVE_UNISTD_H))
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if test "${with_ie55+set}" = set && test $with_ie55 != no; then
  AC_MSG_CHECKING([for dimm.h])
  saved_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -idirafter $with_ie55/Include"
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  AC_TRY_COMPILE([/* The w32api imm.h clashes a bit with the IE5.5 dimm.h */
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#ifdef __GNUC__
#define IMEMENUITEMINFOA hidden_IMEMENUITEMINFOA
#define IMEMENUITEMINFOW hidden_IMEMENUITEMINFOW
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#endif
#include <windows.h>
#include <objbase.h>
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#include <imm.h>
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#ifdef __GNUC__
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#undef IMEMENUITEMINFOA
#undef IMEMENUITEMINFOW
#endif
#include <dimm.h>
],
   [],
   [AC_MSG_RESULT(yes)
    AC_MSG_CHECKING([for IE55 uuid.lib])
    if test -f $with_ie55/Lib/uuid.lib ; then
      AC_MSG_RESULT(yes)
      have_ie55=yes
      AC_DEFINE(HAVE_DIMM_H)
      IE55_UUID_LIB="$with_ie55/Lib/uuid.lib"
      AC_SUBST(IE55_UUID_LIB)
    else
      AC_MSG_RESULT(no)
      CFLAGS="$saved_CFLAGS"
      have_ie55=no
    fi
    ],
   [AC_MSG_RESULT(no)
    CFLAGS="$saved_CFLAGS"
    have_ie55=no])
fi
AM_CONDITIONAL(HAVE_IE55, test x$have_ie55 = xyes)
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if test "${with_wintab+set}" = set && test $with_wintab != no; then
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  AC_MSG_CHECKING([for wintab.h])
  saved_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -I$with_wintab/include"
  AC_TRY_COMPILE([#include <windows.h>
#include <wintab.h>], 
   [],
   [AC_MSG_RESULT(yes)
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    AC_MSG_CHECKING([for wntab32x.lib])
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    if test -f $with_wintab/lib/i386/wntab32x.lib ; then
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      AC_MSG_RESULT(yes)
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      have_wintab=yes
      AC_DEFINE(HAVE_WINTAB)
      WINTAB_LIB="$with_wintab/lib/i386/wntab32x.lib"
      AC_SUBST(WINTAB_LIB)
    else
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      AC_MSG_RESULT(no)
      CFLAGS="$saved_cflags"
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      have_wintab=no
    fi
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    ],
   [AC_MSG_RESULT(no)
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    CFLAGS="$saved_cflags"
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    have_wintab=no])
fi
AM_CONDITIONAL(HAVE_WINTAB, test x$have_wintab = xyes)
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saved_cflags="$CFLAGS"
saved_ldflags="$LDFLAGS"

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# Checks for header files.
AC_HEADER_STDC
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# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
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# Checks for library functions.
AC_TYPE_SIGNAL
AC_FUNC_MMAP
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AC_CHECK_FUNCS(mallinfo)
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AC_CHECK_FUNCS(getresuid)
AC_TYPE_UID_T
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# Check if <sys/select.h> needs to be included for fd_set
AC_MSG_CHECKING([for fd_set])
AC_TRY_COMPILE([#include <sys/types.h>],
        [fd_set readMask, writeMask;], gtk_ok=yes, gtk_ok=no)
if test $gtk_ok = yes; then
    AC_MSG_RESULT([yes, found in sys/types.h])
else
    AC_HEADER_EGREP(fd_mask, sys/select.h, gtk_ok=yes)
    if test $gtk_ok = yes; then
        AC_DEFINE(HAVE_SYS_SELECT_H)
        AC_MSG_RESULT([yes, found in sys/select.h])
    else
	AC_DEFINE(NO_FD_SET)
	AC_MSG_RESULT(no)
    fi
fi
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# `widechar' tests for gdki18n.h
AC_MSG_CHECKING(for wchar.h)
AC_TRY_CPP([#include <wchar.h>], gdk_wchar_h=yes, gdk_wchar_h=no)
if test $gdk_wchar_h = yes; then
   AC_DEFINE(HAVE_WCHAR_H,1,[Have wchar.h include file])
fi
AC_MSG_RESULT($gdk_wchar_h)
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# Check for wctype.h (for iswalnum)
AC_MSG_CHECKING(for wctype.h)
AC_TRY_CPP([#include <wctype.h>], gdk_wctype_h=yes, gdk_wctype_h=no)
if test $gdk_wctype_h = yes; then
   AC_DEFINE(HAVE_WCTYPE_H,1,[Have wctype.h include file])
fi
AC_MSG_RESULT($gdk_wctype_h)
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# in Solaris 2.5, `iswalnum' is in -lw
GDK_WLIBS=
AC_CHECK_FUNC(iswalnum,,[AC_CHECK_LIB(w,iswalnum,GDK_WLIBS=-lw)])
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oLIBS="$LIBS"
LIBS="$LIBS $GDK_WLIBS"
# The following is necessary for Linux libc-5.4.38
AC_MSG_CHECKING(if iswalnum() and friends are properly defined)
AC_TRY_LINK([#include <stdlib.h>],[
#if (defined(HAVE_WCTYPE_H) || defined(HAVE_WCHAR_H))
#  ifdef HAVE_WCTYPE_H
#    include <wctype.h>
#  else
#    ifdef HAVE_WCHAR_H
#      include <wchar.h>
#    endif
#  endif
#else
#  define iswalnum(c) ((wchar_t)(c) <= 0xFF && isalnum(c))
#endif
iswalnum((wchar_t) 0);
], gdk_working_wctype=yes, gdk_working_wctype=no)
LIBS="$oLIBS"
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if test $gdk_working_wctype = no; then
   AC_DEFINE(HAVE_BROKEN_WCTYPE,1,[Is the wctype implementation broken])
   GDK_WLIBS=
fi
AC_MSG_RESULT($gdk_working_wctype)
AC_SUBST(GDK_WLIBS)
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# Check for uxtheme.h (for MS-Windows Engine)
AC_MSG_CHECKING(for uxtheme.h)
AC_TRY_CPP([#include <uxtheme.h>], gtk_uxtheme_h=yes, gtk_uxtheme_h=no)
if test $gtk_uxtheme_h = yes; then
   AC_DEFINE(HAVE_UXTHEME_H,1,[Have uxtheme.h include file])
fi
AC_MSG_RESULT($gtk_uxtheme_h)

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##################################################
# Checks for gdk-pixbuf
##################################################
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dnl ********************************************************
dnl * See whether we need to load our modules as .la files *
dnl ********************************************************

use_la_modules=false
case $host in
  *-aix*) use_la_modules=true
esac

if $use_la_modules ; then
   AC_DEFINE(USE_LA_MODULES, 1, [Whether to load modules via .la files rather than directly])
fi


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AC_MSG_CHECKING(whether to build gmodulized gdk-pixbuf)
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AC_ARG_ENABLE(modules,
              [AC_HELP_STRING([--disable-modules],
                              [disable dynamic module loading])])
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dynworks=false
deps=
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if test x$enable_modules = xno; then
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    AC_MSG_RESULT(no)
else
    AC_MSG_RESULT(yes)
    AC_MSG_CHECKING(whether dynamic modules work)
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    ## for loop is to strip newline 
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    tmp=`$PKG_CONFIG --variable=gmodule_supported gmodule-no-export-2.0`
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    for I in $tmp; do
        dynworks=$I
    done
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    dnl Now we check to see if our libtool supports shared lib deps
    dnl (in a rather ugly way even)
    if $dynworks; then
        pixbuf_libtool_config="${CONFIG_SHELL-/bin/sh} ./libtool --config"
        pixbuf_deplibs_check=`$pixbuf_libtool_config | \
            grep '^[[a-z_]]*check[[a-z_]]*_method=[['\''"]]' | \
            sed 's/.*[['\''"]]\(.*\)[['\''"]]$/\1/'`
        if test "x$pixbuf_deplibs_check" = "xnone" || \
           test "x$pixbuf_deplibs_check" = "xunknown" || \
           test "x$pixbuf_deplibs_check" = "x"; then
            dynworks=false
        fi
    fi
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    if $dynworks; then
        AC_DEFINE(USE_GMODULE)
        AC_MSG_RESULT(yes)
    else
        AC_MSG_RESULT(no)
    fi
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fi
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dnl We allow people to disable image loaders explicitely, but if they don't we error
dnl out so that people don't accidentally build without them.

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AC_ARG_WITH(libpng,
            [AC_HELP_STRING([--without-libpng],
                            [disable PNG loader for gdk-pixbuf])])
AC_ARG_WITH(libjpeg,
            [AC_HELP_STRING([--without-libjpeg],
                            [disable JPEG loader for gdk-pixbuf])])
AC_ARG_WITH(libtiff,
            [AC_HELP_STRING([--without-libtiff],
                            [disable TIFF loader for gdk-pixbuf])])
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dnl Test for libtiff
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  if test x$with_libtiff != xno && test -z "$LIBTIFF"; then
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    AC_CHECK_LIB(tiff, TIFFReadScanline,
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      [AC_CHECK_HEADER(tiffio.h,
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        TIFF='tiff'; LIBTIFF='-ltiff',
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        AC_MSG_WARN(*** TIFF loader will not be built (TIFF header files not found) ***))],
      [AC_CHECK_LIB(tiff, TIFFWriteScanline,
        [AC_CHECK_HEADER(tiffio.h,
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          TIFF='tiff'; LIBTIFF='-ltiff -ljpeg -lz',
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          AC_MSG_WARN(*** TIFF loader will not be built (TIFF header files not found) ***))],
        [AC_CHECK_LIB(tiff34, TIFFFlushData,
          [AC_CHECK_HEADER(tiffio.h,
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            TIFF='tiff'; LIBTIFF='-ltiff34 -ljpeg -lz',
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            AC_MSG_WARN(*** TIFF loader will not be built (TIFF header files not found) ***))],
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        AC_MSG_WARN(*** TIFF loader will not be built (TIFF library not found) ***), -ljpeg -lz -lm)], -ljpeg -lz -lm)], -lm)
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  fi

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  if test x$with_libtiff != xno && test -z "$LIBTIFF"; then
     AC_MSG_ERROR([
*** Checks for TIFF loader failed. You can build without it by passing 
*** --without-libtiff to configure but some programs using GTK+ may
*** not work properly])
  fi

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dnl Test for libjpeg
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  if test x$with_libjpeg != xno && test -z "$LIBJPEG"; then
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    AC_CHECK_LIB(jpeg, jpeg_destroy_decompress,
      jpeg_ok=yes,
      jpeg_ok=no
      AC_MSG_WARN(*** JPEG loader will not be built (JPEG library not found) ***))
    if test "$jpeg_ok" = yes; then
      AC_MSG_CHECKING([for jpeglib.h])
      AC_TRY_CPP(
[#include <stdio.h>
#undef PACKAGE
#undef VERSION
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#undef HAVE_STDLIB_H
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#include <jpeglib.h>],
        jpeg_ok=yes,
        jpeg_ok=no)
      AC_MSG_RESULT($jpeg_ok)
      if test "$jpeg_ok" = yes; then
        LIBJPEG='-ljpeg'
        AC_CHECK_LIB(jpeg, jpeg_simple_progression,     
          AC_DEFINE(HAVE_PROGRESSIVE_JPEG),
          AC_MSG_WARN(JPEG library does not support progressive saving.))
      else
          AC_MSG_WARN(*** JPEG loader will not be built (JPEG header file not found) ***)
      fi
    fi
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  fi

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  if test x$with_libjpeg != xno && test -z "$LIBJPEG"; then
     AC_MSG_ERROR([
*** Checks for JPEG loader failed. You can build without it by passing 
*** --without-libjpeg to configure but some programs using GTK+ may
*** not work properly])
  fi

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dnl Test for libpng
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  if test x$with_libpng != xno && test -z "$LIBPNG"; then
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    AC_MSG_CHECKING(for libpng12)
    if $PKG_CONFIG --exists libpng12 ; then
        AC_MSG_RESULT(yes)
        PNG='png'
	PNG_DEP_CFLAGS_PACKAGES=libpng12
	LIBPNG=`$PKG_CONFIG --libs libpng12`
    else
      AC_MSG_RESULT(no)
      AC_CHECK_LIB(png, png_read_info,
        [AC_CHECK_HEADER(png.h,
          png_ok=yes,
          png_ok=no)],
        AC_MSG_WARN(*** PNG loader will not be built (PNG library not found) ***), -lz -lm)
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      if test "$png_ok" = yes; then
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        AC_MSG_CHECKING([for png_structp in png.h])
        AC_TRY_COMPILE([#include <png.h>],
          [png_structp pp; png_infop info; png_colorp cmap; png_create_read_struct;],
          png_ok=yes,
          png_ok=no)
        AC_MSG_RESULT($png_ok)
        if test "$png_ok" = yes; then
          PNG='png'; LIBPNG='-lpng -lz'
        else
          AC_MSG_WARN(*** PNG loader will not be built (PNG library is too old) ***)
        fi
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      else
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       AC_MSG_WARN(*** PNG loader will not be built (PNG header file not found) ***)
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      fi
    fi
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  fi
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  if test x$with_libpng != xno && test -z "$LIBPNG"; then
     AC_MSG_ERROR([
*** Checks for PNG loader failed. You can build without it by passing 
*** --without-libpng to configure but many programs using GTK+ will
*** not work properly. The PNG loader is also needed if you are compiling
*** from CVS.])
  fi

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AC_SUBST(LIBTIFF)
AC_SUBST(LIBJPEG)
AC_SUBST(LIBPNG)
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AM_CONDITIONAL(BUILD_DYNAMIC_MODULES, $dynworks)
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#
# Allow building some or all gdk-pixbuf loaders included
#
AC_MSG_CHECKING(pixbuf loaders to build)
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dnl due to an autoconf bug, commas in the first arg to
dnl AC_HELP_STRING cause problems.
dnl AC_HELP_STRING([--with-included-loaders=LOADER1 LOADER2 ...],
dnl                [build the specified loaders into gdk-pixbuf (only used if module loading disabled)])
AC_ARG_WITH(included_loaders,
[  --with-included-loaders=LOADER1,LOADER2,...
                          build the specified loaders into gdk-pixbuf (only
                          used if module loading disabled)])
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if $dynworks; then 
        :
else
   ## if the option was specified, leave it; otherwise disable included loaders
   if test x$with_included_loaders = xno; then
           with_included_loaders=yes
   fi
fi

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all_loaders="png,bmp,wbmp,gif,ico,ani,jpeg,pnm,ras,tiff,xpm,tga,pcx"
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included_loaders=""
# If no loaders specified, include all
if test "x$with_included_loaders" = xyes ; then
  included_loaders="$all_loaders"
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else
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  included_loaders="$with_included_loaders"
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fi

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AC_MSG_RESULT($included_loaders)
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INCLUDED_LOADER_OBJ=
INCLUDED_LOADER_DEFINE=
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IFS="${IFS= 	}"; gtk_save_ifs="$IFS"; IFS=","
for loader in $included_loaders; do
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 if echo "$all_loaders" | egrep "(^|,)$loader(\$|,)" > /dev/null; then
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   :
 else
   AC_MSG_ERROR([the specified loader $loader does not exist])
 fi
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 INCLUDED_LOADER_OBJ="$INCLUDED_LOADER_OBJ libpixbufloader-static-$loader.la"
 INCLUDED_LOADER_DEFINE="$INCLUDED_LOADER_DEFINE -DINCLUDE_$loader"
done
IFS="$gtk_save_ifs"
AC_SUBST(INCLUDED_LOADER_OBJ)
AC_SUBST(INCLUDED_LOADER_DEFINE)
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AC_HEADER_SYS_WAIT
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AC_TYPE_SIGNAL

AM_CONDITIONAL(HAVE_TIFF, test "x$LIBTIFF" != x)
AM_CONDITIONAL(HAVE_PNG, test "x$LIBPNG" != x)
AM_CONDITIONAL(HAVE_JPEG, test "x$LIBJPEG" != x)

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if $dynworks ; then
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  STATIC_LIB_DEPS=
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  if echo "$included_loaders" | egrep '(^|,)tiff($|,)' > /dev/null; then
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    STATIC_LIB_DEPS="$STATIC_LIB_DEPS $LIBTIFF"
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  fi
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  if echo "$included_loaders" | egrep '(^|,)jpeg($|,)' > /dev/null; then
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    STATIC_LIB_DEPS="$STATIC_LIB_DEPS $LIBJPEG"
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  fi
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  if echo "$included_loaders" | egrep '(^|,)png($|,)' > /dev/null; then
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    STATIC_LIB_DEPS="$STATIC_LIB_DEPS $LIBPNG"
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  fi
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else
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  STATIC_LIB_DEPS="$LIBTIFF $LIBJPEG $LIBPNG"
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fi
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# Checks to see if we should compile in MMX support (there will be
# a runtime test when the code is actually run to see if it should
# be used - this just checks if we can compile it.)
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#
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# This code is partially taken from Mesa
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#
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AC_MSG_CHECKING(for x86 platform)
case $host_cpu in
  i386|i486|i586|i686|i786|k6|k7)
	use_x86_asm=yes
        ;;
   *)
  	use_x86_asm=no
esac
AC_MSG_RESULT($use_x86_asm)
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use_mmx_asm=no
if test $use_x86_asm = yes; then
    save_ac_ext=$ac_ext
    ac_ext=S
    
    AC_MSG_CHECKING(compiler support for MMX)
    cp $srcdir/gdk-pixbuf/pixops/scale_line_22_33_mmx.S conftest.S
    if AC_TRY_EVAL(ac_compile); then
        use_mmx_asm=yes
    fi

    rm -rf conftest*

    ac_ext=$save_ac_ext
    if test $use_mmx_asm = yes; then
      AC_DEFINE(USE_MMX)
      AC_MSG_RESULT(yes)
    else
      AC_MSG_RESULT(no)
    fi
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fi
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AM_CONDITIONAL(USE_MMX, test x$use_mmx_asm = xyes)
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REBUILD_PNGS=
if test -z "$LIBPNG"; then
  REBUILD_PNGS=#
fi

985
986
dnl Look for a host system's gdk-pixbuf-csource if we are cross-compiling

987
AM_CONDITIONAL(CROSS_COMPILING, test $cross_compiling = yes)
988

989
if test $cross_compiling = yes; then
990
991
  AC_PATH_PROG(GDK_PIXBUF_CSOURCE, gdk-pixbuf-csource, no)
  if test x$GDK_PIXBUF_CSOURCE = xno; then
992
    REBUILD_PNGS=#
993
994
  fi
fi
995

996
997
998
999
1000
if test ! -f $srcdir/gtk/stock-icons/gtkstockpixbufs.h && 
   test "x$REBUILD_PNGS" = "x#" ; then
     AC_MSG_ERROR([
*** gtkstockpixbufs.h is not in the tree, and cannot be built
*** because you don't have libpng, or (when cross-compiling) you