configure.ac - mtk-gst-plugins-base - Git at Google

 AC_PREREQ(2.52)

 dnl initialize autoconf
 dnl we don't specify PACKAGE and VERSION because AS_VERSION puts it together
 AC_INIT

 dnl when going to/from release please set the nano (fourth number) right !
 dnl releases only do Wall, cvs and prerelease does Werror too
 AS_VERSION(gst-plugins-base, GST_PLUGINS_BASE_VERSION, 0, 10, 2, 0,
     GST_CVS="no", GST_CVS="yes")

 dnl can autoconf find the source ?
 AC_CONFIG_SRCDIR([gst/audiotestsrc/gstaudiotestsrc.c])

 dnl define the output header for config
 AM_CONFIG_HEADER([config.h])

 dnl AM_MAINTAINER_MODE only provides the option to configure to enable it
 AM_MAINTAINER_MODE

 dnl sets host_* variables
 AC_CANONICAL_HOST

 dnl initialize automake
 dnl FIXME: this is deprecated use, we should move PACKAGE and VERSION to
 dnl AC_INIT, but then we need to parse the version to pass to AS_VERSION
 AM_INIT_AUTOMAKE($PACKAGE, $VERSION)

 dnl our libraries and install dirs use major.minor as a version
 GST_MAJORMINOR=$GST_PLUGINS_BASE_VERSION_MAJOR.$GST_PLUGINS_BASE_VERSION_MINOR
 dnl we override it here if we need to for the release candidate of new series
 GST_MAJORMINOR=0.10
 AC_SUBST(GST_MAJORMINOR)

 dnl CURRENT, REVISION, AGE
 dnl - library source changed -> increment REVISION
 dnl - interfaces added/removed/changed -> increment CURRENT, REVISION = 0
 dnl - interfaces added -> increment AGE
 dnl - interfaces removed -> AGE = 0
 dnl sets GST_LT_LDFLAGS
 AS_LIBTOOL(GST, 1, 0, 1)
 AS_LIBTOOL_TAGS
 AM_PROG_LIBTOOL

 dnl *** required versions of GStreamer stuff ***
 GST_REQ=0.10.2

 dnl *** autotools stuff ****

 dnl allow for different autotools
 AS_AUTOTOOLS_ALTERNATE

 dnl Add parameters for aclocal
 AC_SUBST(ACLOCAL_AMFLAGS, "-I m4 -I common/m4")

 dnl set up gettext
 dnl the version check needs to stay here because autopoint greps for it
 AM_GNU_GETTEXT_VERSION([0.11.5])
 AM_GNU_GETTEXT([external])
 GST_GETTEXT([gst-plugins-base-$GST_MAJORMINOR])

 dnl *** check for arguments to configure ***

 GST_ARG_DEBUG
 GST_ARG_PROFILING
 GST_ARG_VALGRIND
 GST_ARG_GCOV

 GST_ARG_EXAMPLES

 GST_ARG_WITH_PKG_CONFIG_PATH
 GST_ARG_WITH_PACKAGE_NAME([GStreamer Base Plug-ins])
 GST_ARG_WITH_PACKAGE_ORIGIN

 dnl these are all the gst plug-ins, compilable without additional libs
 GST_PLUGINS_ALL="\
 	adder \
 	audioconvert \
 	audiorate \
 	audioresample \
 	audiotestsrc \
 	ffmpegcolorspace \
 	playback \
 	typefind \
 	videotestsrc \
 	videorate \
 	videoscale \
 	volume \
 	"
 AC_SUBST(GST_PLUGINS_ALL)

 GST_PLUGINS_SELECTED=""

 AC_ARG_WITH(plugins,
     AC_HELP_STRING([--with-plugins],
       [comma-separated list of plug-ins to compile]),
     [for i in `echo $withval | tr , ' '`; do
         if echo $GST_PLUGINS_ALL | grep $i > /dev/null
         then
             GST_PLUGINS_SELECTED="$GST_PLUGINS_SELECTED $i"
         else
             echo "plug-in $i not recognized, ignoring..."
         fi
     done],
     [GST_PLUGINS_SELECTED=$GST_PLUGINS_ALL])

 AC_SUBST(GST_PLUGINS_SELECTED)

 dnl ext plug-ins; plug-ins that have external dependencies
 GST_CHECK_FEATURE(EXTERNAL, [enable building of plug-ins with external deps],,
   [HAVE_EXTERNAL=yes], enabled,
   [
     AC_MSG_NOTICE(building external plug-ins)
     BUILD_EXTERNAL="yes"
   ],[
     AC_MSG_NOTICE(all plug-ins with external dependencies will not be built)
     BUILD_EXTERNAL="no"
   ])
 AM_CONDITIONAL(BUILD_EXTERNAL, test "x$BUILD_EXTERNAL" = "xyes")

 dnl *** checks for platform ***

 dnl * hardware/architecture *

 dnl common/m4/gst-arch.m4
 dnl check CPU type
 GST_ARCH

 dnl *** checks for programs ***

 dnl find a compiler
 AC_PROG_CC

 dnl determine c++ compiler
 AC_PROG_CXX
 dnl determine if c++ is available on this system
 AC_CHECK_PROG(HAVE_CXX, $CXX, yes, no)

 dnl determine c++ preprocessor
 dnl FIXME: do we need this ?
 AC_PROG_CXXCPP

 AC_PATH_PROG(VALGRIND_PATH, valgrind, no)
 AM_CONDITIONAL(HAVE_VALGRIND, test ! "x$VALGRIND_PATH" = "xno")

 dnl check for documentation tools
 GTK_DOC_CHECK([1.3])
 AS_PATH_PYTHON([2.1])

 dnl *** checks for libraries ***

 dnl For interactive UNIX (a Sun thing)
 dnl FIXME: this adds -lcposix to LIBS, but I doubt we use LIBS
 AC_ISC_POSIX

 dnl *** checks for header files ***

 dnl check if we have ANSI C header files
 AC_HEADER_STDC

 dnl used in gst/ffmpegcolorspace/mem.c
 dnl FIXME: could be fixed by redefining av_malloc and av_free to GLib's
 AC_CHECK_HEADERS([malloc.h])

 dnl used in gst/subparse/gstsubparse.c
 AC_CHECK_HEADERS([regex.h], HAVE_REGEX_H="yes", HAVE_REGEX_H="no")
 AM_CONDITIONAL(HAVE_REGEX_H, test "x$HAVE_REGEX_H" = "xyes")

 dnl used in gst/tcp
 AC_CHECK_HEADERS([sys/socket.h],
   HAVE_SYS_SOCKET_H="yes", HAVE_SYS_SOCKET_H="no")
 AM_CONDITIONAL(HAVE_SYS_SOCKET_H, test "x$HAVE_SYS_SOCKET_H" = "xyes")

 dnl ffmpegcolorspace includes _stdint.h
 AX_CREATE_STDINT_H

 dnl *** checks for types/defines ***

 dnl Check for FIONREAD ioctl declaration
 dnl used in gst/tcp
 GST_CHECK_FIONREAD

 dnl *** checks for structures ***

 dnl *** checks for compiler characteristics ***

 dnl make sure we can use "inline" from C code
 AC_C_INLINE

 dnl *** checks for library functions ***

 dnl Check for fast float to int casting as defined in C99
 dnl used in gst-libs/gst/floatcast/floatcast.h
 AC_C99_FUNC_LRINT
 AC_C99_FUNC_LRINTF

 dnl Check for a way to display the function name in debug output
 GST_CHECK_FUNCTION

 dnl *** checks for dependancy libraries ***

 dnl GLib is required
 GST_GLIB_CHECK([2.6])

 dnl liboil is required
 PKG_CHECK_MODULES(LIBOIL, liboil-0.3 >= 0.3.2, HAVE_LIBOIL=yes, HAVE_LIBOIL=no)
 if test "x${HAVE_LIBOIL}" != xyes ; then
   AC_ERROR([liboil-0.3 is required])
 fi

 dnl checks for gstreamer
 dnl uninstalled is selected preferentially -- see pkg-config(1)
 GST_CHECK_GST($GST_MAJORMINOR, [$GST_REQ])
 GST_CHECK_GST_BASE($GST_MAJORMINOR, [$GST_REQ])
 GST_CHECK_GST_GDP($GST_MAJORMINOR, [$GST_REQ])
 GST_CHECK_GST_CONTROLLER($GST_MAJORMINOR, [$GST_REQ])
 GST_CHECK_GST_CHECK($GST_MAJORMINOR, [$GST_REQ], no)

 dnl FIXME: get rid of this by making sure gstreamer-check brings it in
 dnl check for "check", unit testing library/header
 AM_PATH_CHECK(0.9.2, HAVE_CHECK=yes, HAVE_CHECK=no)
 AM_CONDITIONAL(HAVE_CHECK, test "x$HAVE_CHECK" = "xyes")

 dnl GTK is optional and used in examples
 HAVE_GTK=NO
 PKG_CHECK_MODULES(GTK2, gtk+-2.0 >= 2.2.0, HAVE_GTK_22=yes, HAVE_GTK_22=no)
 if test "x$HAVE_GTK_22" = "xyes"; then
   HAVE_GTK=yes
   GTK_VERSION=`$PKG_CONFIG --variable=gtk_binary_version gtk+-2.0`
   AC_SUBST(GTK_VERSION)
   GTK_PREFIX=`$PKG_CONFIG --variable=prefix gdk-pixbuf-2.0`
   AC_SUBST(GTK_BASE_DIR)
 else
   PKG_CHECK_MODULES(GTK2, gtk+-2.0, HAVE_GTK_20=yes, HAVE_GTK_20=no)
 fi
 if test "x$HAVE_GTK_20" = "xyes"; then
   HAVE_GTK=yes
 fi
 GTK_CFLAGS=$GTK2_CFLAGS
 GTK_LIBS=$GTK2_LIBS
 AC_SUBST(GTK_LIBS)
 AC_SUBST(GTK_CFLAGS)
 AC_SUBST(HAVE_GTK)
 AM_CONDITIONAL(HAVE_GTK, test "x$HAVE_GTK" = "xyes")

 dnl *** set variables based on configure arguments ***

 dnl set license and copyright notice
 GST_LICENSE="LGPL"
 AC_DEFINE_UNQUOTED(GST_LICENSE, "$GST_LICENSE", [GStreamer license])
 AC_SUBST(GST_LICENSE)

 dnl set location of plugin directory
 GST_SET_PLUGINDIR

 dnl define an ERROR_CFLAGS Makefile variable
 GST_SET_ERROR_CFLAGS($GST_CVS)

 dnl define correct level for debugging messages
 GST_SET_LEVEL_DEFAULT($GST_CVS)

 dnl used in examples
 GST_DEFAULT_ELEMENTS

 dnl *** sys plug-ins ***

 echo
 AC_MSG_NOTICE([Checking libraries for plugins in sys/])
 echo

 dnl *** X11 ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_X, true)
 GST_CHECK_FEATURE(X, [X libraries and plugins],
                   [ximagesink], [
   AC_PATH_XTRA
   ac_cflags_save="$CFLAGS"
   ac_cppflags_save="$CPPFLAGS"
   CFLAGS="$CFLAGS $X_CFLAGS"
   CPPFLAGS="$CPPFLAGS $X_CFLAGS"

   dnl now try to find the HEADER
   AC_CHECK_HEADER(X11/Xlib.h, HAVE_X="yes", HAVE_X="no")

   if test "x$HAVE_X" = "xno"
   then
     AC_MSG_NOTICE([cannot find X11 development files])
   else
     dnl this is much more than we want
     X_LIBS="$X_LIBS $X_PRE_LIBS $X_EXTRA_LIBS"
     dnl AC_PATH_XTRA only defines the path needed to find the X libs,
     dnl it does not add the libs; therefore we add them here
     X_LIBS="$X_LIBS -lX11"
     AC_SUBST(X_CFLAGS)
     AC_SUBST(X_LIBS)
   fi
   AC_SUBST(HAVE_X)
   CFLAGS="$ac_cflags_save"
   CPPFLAGS="$ac_cppflags_save"
 ])

 dnl *** XVideo ***
 dnl Look for the PIC library first, Debian requires it.
 dnl Check debian-devel archives for gory details.
 dnl 20020110:
 dnl At the moment XFree86 doesn't distribute shared libXv due
 dnl to unstable API.  On many platforms you CAN NOT link a shared
 dnl lib to a static non-PIC lib.  This is what the xvideo GStreamer
 dnl plug-in wants to do.  So Debian distributes a PIC compiled
 dnl version of the static lib for plug-ins to link to when it is
 dnl inappropriate to link the main application to libXv directly.
 dnl FIXME: add check if this platform can support linking to a
 dnl        non-PIC libXv, if not then don not use Xv.
 dnl FIXME: perhaps warn user if they have a shared libXv since
 dnl        this is an error until XFree86 starts shipping one

 dnl Check for Xv extension
 translit(dnm, m, l) AM_CONDITIONAL(USE_XVIDEO, true)
 GST_CHECK_FEATURE(XVIDEO, [X11 XVideo extensions],
                   [xvimagesink], [
   if test x$HAVE_X = xyes; then
     AC_CHECK_LIB(Xv_pic, XvQueryExtension,
 		 HAVE_XVIDEO="yes", HAVE_XVIDEO="no",
 		 $X_LIBS -lXext)

     if test x$HAVE_XVIDEO = xyes; then
       XVIDEO_LIBS="-lXv_pic -lXext"
       AC_SUBST(XVIDEO_LIBS)
     else
       dnl try again using something else if we didn't find it first
       if test x$HAVE_XVIDEO = xno; then
         AC_CHECK_LIB(Xv, XvQueryExtension,
 		   HAVE_XVIDEO="yes", HAVE_XVIDEO="no",
 		   $X_LIBS -lXext)

         if test x$HAVE_XVIDEO = xyes; then
           XVIDEO_LIBS="-lXv -lXext"
           AC_SUBST(XVIDEO_LIBS)
         fi
       fi
     fi
   fi
 ])

 dnl check for X Shm
 translit(dnm, m, l) AM_CONDITIONAL(USE_XSHM, true)
 GST_CHECK_FEATURE(XSHM, [X Shared Memory extension], xshm, [
   if test x$HAVE_X = xyes; then
     AC_CHECK_LIB(Xext, XShmAttach,
 		 HAVE_XSHM="yes", HAVE_XSHM="no",
 		 $X_LIBS)
     if test "x$HAVE_XSHM" = "xyes"; then
       XSHM_LIBS="-lXext"
     else
       dnl On AIX, it is in XextSam instead, but we still need -lXext
       AC_CHECK_LIB(XextSam, XShmAttach,
 		   HAVE_XSHM="yes", HAVE_XSHM="no",
 		   $X_LIBS)
       if test "x$HAVE_XSHM" = "xyes"; then
 	XSHM_LIBS="-lXext -lXextSam"
       fi
     fi
   fi
 ], , [
   AC_SUBST(HAVE_XSHM)
   AC_SUBST(XSHM_LIBS)
 ] )

 dnl v4l/v4l2 checks have been moved down because they require X

 dnl *** Video 4 Linux ***
 dnl for information about the header/define, see sys/v4l/gstv4lelement.h
 dnl renamed to GST_V4L in accordance with V4L2 below
 translit(dnm, m, l) AM_CONDITIONAL(USE_GST_V4L, true)
 GST_CHECK_FEATURE(GST_V4L, [Video 4 Linux], v4lsrc v4lmjpegsrc v4lmjpegsink, [
   # first check X
   HAVE_GST_V4L="no"
   if test "$HAVE_X" = "yes"
   then
     AC_CHECK_DECL(VID_TYPE_MPEG_ENCODER, HAVE_GST_V4L="yes", HAVE_GST_V4L="no", [
 #include <sys/types.h>
 #define _LINUX_TIME_H
 #define __user
 #include <linux/videodev.h>
     ])
   fi
 ])

 dnl *** ext plug-ins ***
 dnl keep this list sorted alphabetically !

 if test "x$BUILD_EXTERNAL" = "xyes"; then

 echo
 AC_MSG_NOTICE([Checking libraries for plugins in ext/])
 echo

 dnl *** alsa ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_ALSA, true)
 GST_CHECK_FEATURE(ALSA, [alsa plug-ins], gstalsa, [
   PKG_CHECK_MODULES(ALSA, alsa >= 0.9.1, [
     HAVE_ALSA="yes"
     AC_SUBST(ALSA_CFLAGS)
     AC_SUBST(ALSA_LIBS)
   ], [
     AM_PATH_ALSA(0.9.1, HAVE_ALSA="yes", HAVE_ALSA="no")
   ])
 ])

 dnl *** CDParanoia ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_CDPARANOIA, true)
 GST_CHECK_FEATURE(CDPARANOIA, [CDParanoia], cdparanoia, [
   GST_CHECK_LIBHEADER(CDPARANOIA, cdda_interface,
                       cdda_open, -lm,
                       cdda_interface.h,
                       CDPARANOIA_LIBS="-lcdda_interface -lcdda_paranoia"
                       HEADER_DIR="no"
                       FOUND_CDPARANOIA="yes")
   if test "x$FOUND_CDPARANOIA" != "xyes";
   then
     GST_CHECK_LIBHEADER(CDPARANOIA, cdda_interface,
                         cdda_open, -lm,
                         cdda/cdda_interface.h,
                         CDPARANOIA_LIBS="-lcdda_interface -lcdda_paranoia"
                         HEADER_DIR="yes"
                         FOUND_CDPARANOIA="yes")
   fi
   if test "x$HEADER_DIR" = "xyes";
   then
     AC_DEFINE_UNQUOTED(CDPARANOIA_HEADERS_IN_DIR, ,
                        defined if cdda headers are in a cdda/ directory)
   fi
   AC_SUBST(CDPARANOIA_LIBS)
 ])
 dnl FIXME : add second check somehow if that is necessary
 dnl AC_CHECK_LIB(cdda_paranoia, paranoia_init, : , HAVE_CDPARANOIA=no, -lcdda_interface )
 dnl AC_CHECK_HEADER(cdda_paranoia.h, :, HAVE_CDPARANOIA=no)
 GST_CHECK_FEATURE(EXTERNAL, [enable building of plug-ins with external deps],,
   [HAVE_EXTERNAL=yes], enabled,
   [
     AC_MSG_NOTICE(building external plug-ins)
     BUILD_EXTERNAL="yes"
   ],[
     AC_MSG_NOTICE(all plug-ins with external dependencies will not be built)
     BUILD_EXTERNAL="no"
   ])


 dnl *** Gnome VFS ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_GNOME_VFS, true)
 GST_CHECK_FEATURE(GNOME_VFS, [Gnome VFS], gnomevfssrc, [
   PKG_CHECK_MODULES(GNOME_VFS, gnome-vfs-2.0, HAVE_GNOME_VFS="yes", HAVE_GNOME_VFS="no")
   AC_SUBST(GNOME_VFS_CFLAGS)
   AC_SUBST(GNOME_VFS_LIBS)
 ])

 dnl *** libvisual ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_LIBVISUAL, true)
 GST_CHECK_FEATURE(LIBVISUAL, [libvisual visualization plugins], libvisual, [
   PKG_CHECK_MODULES(LIBVISUAL, libvisual = 0.2.0, HAVE_LIBVISUAL="yes", HAVE_LIBVISUAL="no")
   AC_SUBST(LIBVISUAL_CFLAGS)
   AC_SUBST(LIBVISUAL_LIBS)
 ])

 dnl *** ogg ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_OGG, true)
 GST_CHECK_FEATURE(OGG, [ogg de/encoder], oggdemux oggmux, [
   PKG_CHECK_MODULES(OGG, ogg >= 1.0, [
     HAVE_OGG="yes"
     AC_SUBST(OGG_CFLAGS)
     AC_SUBST(OGG_LIBS)
   ], [
     XIPH_PATH_OGG(HAVE_OGG="yes", HAVE_OGG="no")
     AS_SCRUB_INCLUDE(OGG_CFLAGS)
   ])
 ])

 dnl *** pango ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_PANGO, true)
 GST_CHECK_FEATURE(PANGO, [pango], pango, [
   PKG_CHECK_MODULES(PANGO, pango pangoft2,
       HAVE_PANGO="yes", HAVE_PANGO="no")
   AC_SUBST(PANGO_CFLAGS)
   AC_SUBST(PANGO_LIBS)
 ])

 dnl *** theora ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_THEORA, true)
 GST_CHECK_FEATURE(THEORA, [ogg theora codec], theoradec theoraenc, [
   PKG_CHECK_MODULES(THEORA, theora, [
     HAVE_THEORA="yes"
     AC_SUBST(THEORA_LIBS)
     AC_SUBST(THEORA_CFLAGS)
   ], [
     GST_CHECK_LIBHEADER(THEORA, theora, theora_version_string, "-logg", theora/theora.h, THEORA_LIBS="-ltheora -logg")
     AC_SUBST(THEORA_LIBS)
   ])
 ])

 dnl *** vorbis ***
 dnl AM_PATH_VORBIS only takes two options
 translit(dnm, m, l) AM_CONDITIONAL(USE_VORBIS, true)
 GST_CHECK_FEATURE(VORBIS, [vorbis plug-in], vorbisenc vorbisdec, [
   PKG_CHECK_MODULES(VORBIS, vorbis >= 1.0 vorbisenc >= 1.0, [
     HAVE_VORBIS="yes"
   ], [
     XIPH_PATH_VORBIS(HAVE_VORBIS="yes", HAVE_VORBIS="no")
     AS_SCRUB_INCLUDE(VORBIS_CFLAGS)
   ])
 ])
 if test "x$HAVE_VORBIS" = "xyes"; then
   ac_cflags_save="$CFLAGS"
   dnl FIXME: does this work on non-gcc? -- Company
   dnl FIXME: no, it doesn't.  Why is this here in the first place ? -- thomasvs
   CFLAGS="-Wall -Werror"
   AC_COMPILE_IFELSE(
     AC_LANG_PROGRAM([
 #include <vorbis/codec.h>
                      ],[
 vorbis_dsp_state *v;

 vorbis_synthesis_restart (v);
                      ]), HAVE_VSR=yes, HAVE_VSR=no)
   if test "x$HAVE_VSR" = "xyes"; then
     AC_DEFINE_UNQUOTED(HAVE_VORBIS_SYNTHESIS_RESTART, 1,
                        [defined if vorbis_synthesis_restart is present])
   fi
   CFLAGS="$ac_cflags_save"
 fi

 fi dnl of EXT plugins

 dnl seeking needs freetype, so check for it here
 PKG_CHECK_MODULES(FT2, freetype2 >= 2.0.9, HAVE_FT2="yes", [
   AC_CHECK_FT2(2.0.9, HAVE_FT2="yes", HAVE_FT2="no")
 ])
 dnl make the HAVE_FT2 variable available to automake and Makefile.am
 AM_CONDITIONAL(HAVE_FT2, test "x$HAVE_FT2" = "xyes")
 AC_SUBST(FT2_CFLAGS)
 AC_SUBST(FT2_LIBS)

 dnl *** finalize CFLAGS, LDFLAGS, LIBS

 dnl Overview:
 dnl GST_OPTION_CFLAGS:  common flags for profiling, debugging, errors, ...
 dnl GST_*:              flags shared by built objects to link against GStreamer
 dnl GST_ALL_LDFLAGS:    linker flags shared by all
 dnl GST_LIB_LDFLAGS:    additional linker flags for all libaries
 dnl GST_LT_LDFLAGS:     library versioning of our libraries
 dnl GST_PLUGIN_LDFLAGS: flags to be used for all plugins

 dnl GST_OPTION_CFLAGS
 if test "x$USE_DEBUG" = xyes; then
    PROFILE_CFLAGS="-g"
 fi
 AC_SUBST(PROFILE_CFLAGS)

 DEPRECATED_CFLAGS="-DGST_DISABLE_DEPRECATED"
 AC_SUBST(DEPRECATED_CFLAGS)

 dnl every flag in GST_OPTION_CFLAGS can be overridden at make time
 GST_OPTION_CFLAGS="\$(ERROR_CFLAGS) \$(DEBUG_CFLAGS) \$(PROFILE_CFLAGS) \$(GCOV_CFLAGS) \$(OPT_CFLAGS) \$(DEPRECATED_CFLAGS)"
 AC_SUBST(GST_OPTION_CFLAGS)

 dnl our libraries need to be versioned correctly
 AC_SUBST(GST_LT_LDFLAGS)

 dnl FIXME: do we want to rename to GST_ALL_* ?
 dnl prefer internal headers to already installed ones
 dnl also add builddir include for enumtypes and marshal
 dnl add GST_OPTION_CFLAGS, but overridable
 GST_CFLAGS="-I\$(top_srcdir)/gst-libs -I\$(top_builddir)/gst-libs $GST_CFLAGS \$(GST_OPTION_CFLAGS)"
 AC_SUBST(GST_CFLAGS)
 AC_SUBST(GST_LIBS)

 dnl LDFLAGS really should only contain flags, not libs - they get added before
 dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
 GST_ALL_LDFLAGS="-no-undefined"
 AC_SUBST(GST_ALL_LDFLAGS)

 dnl GST_LIB_LDFLAGS
 dnl linker flags shared by all libraries
 dnl LDFLAGS modifier defining exported symbols from built libraries
 GST_LIB_LDFLAGS="-export-symbols-regex [_]*\(gst_\|Gst\|GST_\).*"
 AC_SUBST(GST_LIB_LDFLAGS)

 dnl this really should only contain flags, not libs - they get added before
 dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
 GST_PLUGIN_LDFLAGS="-module -avoid-version -export-symbols-regex '^[_]*gst_plugin_desc\$\$' $GST_ALL_LDFLAGS"
 AC_SUBST(GST_PLUGIN_LDFLAGS)

 dnl *** output files ***

 AC_CONFIG_FILES(
 Makefile
 gst-plugins-base.spec
 gst/Makefile
 gst/adder/Makefile
 gst/audioconvert/Makefile
 gst/audiorate/Makefile
 gst/audioresample/Makefile
 gst/audiotestsrc/Makefile
 gst/ffmpegcolorspace/Makefile
 gst/playback/Makefile
 gst/subparse/Makefile
 gst/tcp/Makefile
 gst/typefind/Makefile
 gst/videotestsrc/Makefile
 gst/videorate/Makefile
 gst/videoscale/Makefile
 gst/volume/Makefile
 sys/Makefile
 sys/ximage/Makefile
 sys/xvimage/Makefile
 sys/v4l/Makefile
 ext/Makefile
 ext/alsa/Makefile
 ext/cdparanoia/Makefile
 ext/gnomevfs/Makefile
 ext/libvisual/Makefile
 ext/ogg/Makefile
 ext/pango/Makefile
 ext/theora/Makefile
 ext/vorbis/Makefile
 gst-libs/Makefile
 gst-libs/gst/Makefile
 gst-libs/gst/audio/Makefile
 gst-libs/gst/cdda/Makefile
 gst-libs/gst/floatcast/Makefile
 gst-libs/gst/interfaces/Makefile
 gst-libs/gst/netbuffer/Makefile
 gst-libs/gst/riff/Makefile
 gst-libs/gst/rtp/Makefile
 gst-libs/gst/tag/Makefile
 gst-libs/gst/video/Makefile
 tools/Makefile
 pkgconfig/Makefile
 pkgconfig/gstreamer-plugins-base.pc
 pkgconfig/gstreamer-plugins-base-uninstalled.pc
 tests/Makefile
 tests/check/Makefile
 tests/examples/Makefile
 tests/examples/seek/Makefile
 tests/examples/volume/Makefile
 tests/icles/Makefile
 docs/Makefile
 docs/libs/Makefile
 docs/plugins/Makefile
 docs/version.entities
 po/Makefile.in
 common/Makefile
 common/m4/Makefile
 m4/Makefile
 )
 AC_OUTPUT

 echo "configure: *** Core plug-ins, always built:"
 ( for i in $GST_PLUGINS_ALL; do echo -e '\t'$i; done ) | sort
 echo
 echo -n "configure: *** Plug-ins relying on libraries that will be built:"
 echo -e "$GST_PLUGINS_YES" | sort
 echo
 echo -n "configure: *** Plug-ins relying on libraries that will NOT be built:"
 echo -e "$GST_PLUGINS_NO" | sort
 echo
 if test "x$BUILD_EXTERNAL" = "xno"; then
   echo "configure: *** No external plug-ins will be built"
 fi
	AC_PREREQ(2.52)

	dnl initialize autoconf
	dnl we don't specify PACKAGE and VERSION because AS_VERSION puts it together
	AC_INIT

	dnl when going to/from release please set the nano (fourth number) right !
	dnl releases only do Wall, cvs and prerelease does Werror too
	AS_VERSION(gst-plugins-base, GST_PLUGINS_BASE_VERSION, 0, 10, 2, 0,
	GST_CVS="no", GST_CVS="yes")

	dnl can autoconf find the source ?
	AC_CONFIG_SRCDIR([gst/audiotestsrc/gstaudiotestsrc.c])

	dnl define the output header for config
	AM_CONFIG_HEADER([config.h])

	dnl AM_MAINTAINER_MODE only provides the option to configure to enable it
	AM_MAINTAINER_MODE

	dnl sets host_* variables
	AC_CANONICAL_HOST

	dnl initialize automake
	dnl FIXME: this is deprecated use, we should move PACKAGE and VERSION to
	dnl AC_INIT, but then we need to parse the version to pass to AS_VERSION
	AM_INIT_AUTOMAKE($PACKAGE, $VERSION)

	dnl our libraries and install dirs use major.minor as a version
	GST_MAJORMINOR=$GST_PLUGINS_BASE_VERSION_MAJOR.$GST_PLUGINS_BASE_VERSION_MINOR
	dnl we override it here if we need to for the release candidate of new series
	GST_MAJORMINOR=0.10
	AC_SUBST(GST_MAJORMINOR)

	dnl CURRENT, REVISION, AGE
	dnl - library source changed -> increment REVISION
	dnl - interfaces added/removed/changed -> increment CURRENT, REVISION = 0
	dnl - interfaces added -> increment AGE
	dnl - interfaces removed -> AGE = 0
	dnl sets GST_LT_LDFLAGS
	AS_LIBTOOL(GST, 1, 0, 1)
	AS_LIBTOOL_TAGS
	AM_PROG_LIBTOOL

	dnl * required versions of GStreamer stuff *
	GST_REQ=0.10.2

	dnl * autotools stuff **

	dnl allow for different autotools
	AS_AUTOTOOLS_ALTERNATE

	dnl Add parameters for aclocal
	AC_SUBST(ACLOCAL_AMFLAGS, "-I m4 -I common/m4")

	dnl set up gettext
	dnl the version check needs to stay here because autopoint greps for it
	AM_GNU_GETTEXT_VERSION([0.11.5])
	AM_GNU_GETTEXT([external])
	GST_GETTEXT([gst-plugins-base-$GST_MAJORMINOR])

	dnl * check for arguments to configure *

	GST_ARG_DEBUG
	GST_ARG_PROFILING
	GST_ARG_VALGRIND
	GST_ARG_GCOV

	GST_ARG_EXAMPLES

	GST_ARG_WITH_PKG_CONFIG_PATH
	GST_ARG_WITH_PACKAGE_NAME([GStreamer Base Plug-ins])
	GST_ARG_WITH_PACKAGE_ORIGIN

	dnl these are all the gst plug-ins, compilable without additional libs
	GST_PLUGINS_ALL="\
	adder \
	audioconvert \
	audiorate \
	audioresample \
	audiotestsrc \
	ffmpegcolorspace \
	playback \
	typefind \
	videotestsrc \
	videorate \
	videoscale \
	volume \
	"
	AC_SUBST(GST_PLUGINS_ALL)

	GST_PLUGINS_SELECTED=""

	AC_ARG_WITH(plugins,
	AC_HELP_STRING([--with-plugins],
	[comma-separated list of plug-ins to compile]),
	[for i in `echo $withval \| tr , ' '`; do
	if echo $GST_PLUGINS_ALL \| grep $i > /dev/null
	then
	GST_PLUGINS_SELECTED="$GST_PLUGINS_SELECTED $i"
	else
	echo "plug-in $i not recognized, ignoring..."
	fi
	done],
	[GST_PLUGINS_SELECTED=$GST_PLUGINS_ALL])

	AC_SUBST(GST_PLUGINS_SELECTED)

	dnl ext plug-ins; plug-ins that have external dependencies
	GST_CHECK_FEATURE(EXTERNAL, [enable building of plug-ins with external deps],,
	[HAVE_EXTERNAL=yes], enabled,
	[
	AC_MSG_NOTICE(building external plug-ins)
	BUILD_EXTERNAL="yes"
	],[
	AC_MSG_NOTICE(all plug-ins with external dependencies will not be built)
	BUILD_EXTERNAL="no"
	])
	AM_CONDITIONAL(BUILD_EXTERNAL, test "x$BUILD_EXTERNAL" = "xyes")

	dnl * checks for platform *

	dnl * hardware/architecture *

	dnl common/m4/gst-arch.m4
	dnl check CPU type
	GST_ARCH

	dnl * checks for programs *

	dnl find a compiler
	AC_PROG_CC

	dnl determine c++ compiler
	AC_PROG_CXX
	dnl determine if c++ is available on this system
	AC_CHECK_PROG(HAVE_CXX, $CXX, yes, no)

	dnl determine c++ preprocessor
	dnl FIXME: do we need this ?
	AC_PROG_CXXCPP

	AC_PATH_PROG(VALGRIND_PATH, valgrind, no)
	AM_CONDITIONAL(HAVE_VALGRIND, test ! "x$VALGRIND_PATH" = "xno")

	dnl check for documentation tools
	GTK_DOC_CHECK([1.3])
	AS_PATH_PYTHON([2.1])

	dnl * checks for libraries *

	dnl For interactive UNIX (a Sun thing)
	dnl FIXME: this adds -lcposix to LIBS, but I doubt we use LIBS
	AC_ISC_POSIX

	dnl * checks for header files *

	dnl check if we have ANSI C header files
	AC_HEADER_STDC

	dnl used in gst/ffmpegcolorspace/mem.c
	dnl FIXME: could be fixed by redefining av_malloc and av_free to GLib's
	AC_CHECK_HEADERS([malloc.h])

	dnl used in gst/subparse/gstsubparse.c
	AC_CHECK_HEADERS([regex.h], HAVE_REGEX_H="yes", HAVE_REGEX_H="no")
	AM_CONDITIONAL(HAVE_REGEX_H, test "x$HAVE_REGEX_H" = "xyes")

	dnl used in gst/tcp
	AC_CHECK_HEADERS([sys/socket.h],
	HAVE_SYS_SOCKET_H="yes", HAVE_SYS_SOCKET_H="no")
	AM_CONDITIONAL(HAVE_SYS_SOCKET_H, test "x$HAVE_SYS_SOCKET_H" = "xyes")

	dnl ffmpegcolorspace includes _stdint.h
	AX_CREATE_STDINT_H

	dnl * checks for types/defines *

	dnl Check for FIONREAD ioctl declaration
	dnl used in gst/tcp
	GST_CHECK_FIONREAD

	dnl * checks for structures *

	dnl * checks for compiler characteristics *

	dnl make sure we can use "inline" from C code
	AC_C_INLINE

	dnl * checks for library functions *

	dnl Check for fast float to int casting as defined in C99
	dnl used in gst-libs/gst/floatcast/floatcast.h
	AC_C99_FUNC_LRINT
	AC_C99_FUNC_LRINTF

	dnl Check for a way to display the function name in debug output
	GST_CHECK_FUNCTION

	dnl * checks for dependancy libraries *

	dnl GLib is required
	GST_GLIB_CHECK([2.6])

	dnl liboil is required
	PKG_CHECK_MODULES(LIBOIL, liboil-0.3 >= 0.3.2, HAVE_LIBOIL=yes, HAVE_LIBOIL=no)
	if test "x${HAVE_LIBOIL}" != xyes ; then
	AC_ERROR([liboil-0.3 is required])
	fi

	dnl checks for gstreamer
	dnl uninstalled is selected preferentially -- see pkg-config(1)
	GST_CHECK_GST($GST_MAJORMINOR, [$GST_REQ])
	GST_CHECK_GST_BASE($GST_MAJORMINOR, [$GST_REQ])
	GST_CHECK_GST_GDP($GST_MAJORMINOR, [$GST_REQ])
	GST_CHECK_GST_CONTROLLER($GST_MAJORMINOR, [$GST_REQ])
	GST_CHECK_GST_CHECK($GST_MAJORMINOR, [$GST_REQ], no)

	dnl FIXME: get rid of this by making sure gstreamer-check brings it in
	dnl check for "check", unit testing library/header
	AM_PATH_CHECK(0.9.2, HAVE_CHECK=yes, HAVE_CHECK=no)
	AM_CONDITIONAL(HAVE_CHECK, test "x$HAVE_CHECK" = "xyes")

	dnl GTK is optional and used in examples
	HAVE_GTK=NO
	PKG_CHECK_MODULES(GTK2, gtk+-2.0 >= 2.2.0, HAVE_GTK_22=yes, HAVE_GTK_22=no)
	if test "x$HAVE_GTK_22" = "xyes"; then
	HAVE_GTK=yes
	GTK_VERSION=`$PKG_CONFIG --variable=gtk_binary_version gtk+-2.0`
	AC_SUBST(GTK_VERSION)
	GTK_PREFIX=`$PKG_CONFIG --variable=prefix gdk-pixbuf-2.0`
	AC_SUBST(GTK_BASE_DIR)
	else
	PKG_CHECK_MODULES(GTK2, gtk+-2.0, HAVE_GTK_20=yes, HAVE_GTK_20=no)
	fi
	if test "x$HAVE_GTK_20" = "xyes"; then
	HAVE_GTK=yes
	fi
	GTK_CFLAGS=$GTK2_CFLAGS
	GTK_LIBS=$GTK2_LIBS
	AC_SUBST(GTK_LIBS)
	AC_SUBST(GTK_CFLAGS)
	AC_SUBST(HAVE_GTK)
	AM_CONDITIONAL(HAVE_GTK, test "x$HAVE_GTK" = "xyes")

	dnl * set variables based on configure arguments *

	dnl set license and copyright notice
	GST_LICENSE="LGPL"
	AC_DEFINE_UNQUOTED(GST_LICENSE, "$GST_LICENSE", [GStreamer license])
	AC_SUBST(GST_LICENSE)

	dnl set location of plugin directory
	GST_SET_PLUGINDIR

	dnl define an ERROR_CFLAGS Makefile variable
	GST_SET_ERROR_CFLAGS($GST_CVS)

	dnl define correct level for debugging messages
	GST_SET_LEVEL_DEFAULT($GST_CVS)

	dnl used in examples
	GST_DEFAULT_ELEMENTS

	dnl * sys plug-ins *

	echo
	AC_MSG_NOTICE([Checking libraries for plugins in sys/])
	echo

	dnl * X11 *
	translit(dnm, m, l) AM_CONDITIONAL(USE_X, true)
	GST_CHECK_FEATURE(X, [X libraries and plugins],
	[ximagesink], [
	AC_PATH_XTRA
	ac_cflags_save="$CFLAGS"
	ac_cppflags_save="$CPPFLAGS"
	CFLAGS="$CFLAGS $X_CFLAGS"
	CPPFLAGS="$CPPFLAGS $X_CFLAGS"

	dnl now try to find the HEADER
	AC_CHECK_HEADER(X11/Xlib.h, HAVE_X="yes", HAVE_X="no")

	if test "x$HAVE_X" = "xno"
	then
	AC_MSG_NOTICE([cannot find X11 development files])
	else
	dnl this is much more than we want
	X_LIBS="$X_LIBS $X_PRE_LIBS $X_EXTRA_LIBS"
	dnl AC_PATH_XTRA only defines the path needed to find the X libs,
	dnl it does not add the libs; therefore we add them here
	X_LIBS="$X_LIBS -lX11"
	AC_SUBST(X_CFLAGS)
	AC_SUBST(X_LIBS)
	fi
	AC_SUBST(HAVE_X)
	CFLAGS="$ac_cflags_save"
	CPPFLAGS="$ac_cppflags_save"
	])

	dnl * XVideo *
	dnl Look for the PIC library first, Debian requires it.
	dnl Check debian-devel archives for gory details.
	dnl 20020110:
	dnl At the moment XFree86 doesn't distribute shared libXv due
	dnl to unstable API. On many platforms you CAN NOT link a shared
	dnl lib to a static non-PIC lib. This is what the xvideo GStreamer
	dnl plug-in wants to do. So Debian distributes a PIC compiled
	dnl version of the static lib for plug-ins to link to when it is
	dnl inappropriate to link the main application to libXv directly.
	dnl FIXME: add check if this platform can support linking to a
	dnl non-PIC libXv, if not then don not use Xv.
	dnl FIXME: perhaps warn user if they have a shared libXv since
	dnl this is an error until XFree86 starts shipping one

	dnl Check for Xv extension
	translit(dnm, m, l) AM_CONDITIONAL(USE_XVIDEO, true)
	GST_CHECK_FEATURE(XVIDEO, [X11 XVideo extensions],
	[xvimagesink], [
	if test x$HAVE_X = xyes; then
	AC_CHECK_LIB(Xv_pic, XvQueryExtension,
	HAVE_XVIDEO="yes", HAVE_XVIDEO="no",
	$X_LIBS -lXext)

	if test x$HAVE_XVIDEO = xyes; then
	XVIDEO_LIBS="-lXv_pic -lXext"
	AC_SUBST(XVIDEO_LIBS)
	else
	dnl try again using something else if we didn't find it first
	if test x$HAVE_XVIDEO = xno; then
	AC_CHECK_LIB(Xv, XvQueryExtension,
	HAVE_XVIDEO="yes", HAVE_XVIDEO="no",
	$X_LIBS -lXext)

	if test x$HAVE_XVIDEO = xyes; then
	XVIDEO_LIBS="-lXv -lXext"
	AC_SUBST(XVIDEO_LIBS)
	fi
	fi
	fi
	fi
	])

	dnl check for X Shm
	translit(dnm, m, l) AM_CONDITIONAL(USE_XSHM, true)
	GST_CHECK_FEATURE(XSHM, [X Shared Memory extension], xshm, [
	if test x$HAVE_X = xyes; then
	AC_CHECK_LIB(Xext, XShmAttach,
	HAVE_XSHM="yes", HAVE_XSHM="no",
	$X_LIBS)
	if test "x$HAVE_XSHM" = "xyes"; then
	XSHM_LIBS="-lXext"
	else
	dnl On AIX, it is in XextSam instead, but we still need -lXext
	AC_CHECK_LIB(XextSam, XShmAttach,
	HAVE_XSHM="yes", HAVE_XSHM="no",
	$X_LIBS)
	if test "x$HAVE_XSHM" = "xyes"; then
	XSHM_LIBS="-lXext -lXextSam"
	fi
	fi
	fi
	], , [
	AC_SUBST(HAVE_XSHM)
	AC_SUBST(XSHM_LIBS)
	] )

	dnl v4l/v4l2 checks have been moved down because they require X

	dnl * Video 4 Linux *
	dnl for information about the header/define, see sys/v4l/gstv4lelement.h
	dnl renamed to GST_V4L in accordance with V4L2 below
	translit(dnm, m, l) AM_CONDITIONAL(USE_GST_V4L, true)
	GST_CHECK_FEATURE(GST_V4L, [Video 4 Linux], v4lsrc v4lmjpegsrc v4lmjpegsink, [
	# first check X
	HAVE_GST_V4L="no"
	if test "$HAVE_X" = "yes"
	then
	AC_CHECK_DECL(VID_TYPE_MPEG_ENCODER, HAVE_GST_V4L="yes", HAVE_GST_V4L="no", [
	#include <sys/types.h>
	#define _LINUX_TIME_H
	#define __user
	#include <linux/videodev.h>
	])
	fi
	])

	dnl * ext plug-ins *
	dnl keep this list sorted alphabetically !

	if test "x$BUILD_EXTERNAL" = "xyes"; then

	echo
	AC_MSG_NOTICE([Checking libraries for plugins in ext/])
	echo

	dnl * alsa *
	translit(dnm, m, l) AM_CONDITIONAL(USE_ALSA, true)
	GST_CHECK_FEATURE(ALSA, [alsa plug-ins], gstalsa, [
	PKG_CHECK_MODULES(ALSA, alsa >= 0.9.1, [
	HAVE_ALSA="yes"
	AC_SUBST(ALSA_CFLAGS)
	AC_SUBST(ALSA_LIBS)
	], [
	AM_PATH_ALSA(0.9.1, HAVE_ALSA="yes", HAVE_ALSA="no")
	])
	])

	dnl * CDParanoia *
	translit(dnm, m, l) AM_CONDITIONAL(USE_CDPARANOIA, true)
	GST_CHECK_FEATURE(CDPARANOIA, [CDParanoia], cdparanoia, [
	GST_CHECK_LIBHEADER(CDPARANOIA, cdda_interface,
	cdda_open, -lm,
	cdda_interface.h,
	CDPARANOIA_LIBS="-lcdda_interface -lcdda_paranoia"
	HEADER_DIR="no"
	FOUND_CDPARANOIA="yes")
	if test "x$FOUND_CDPARANOIA" != "xyes";
	then
	GST_CHECK_LIBHEADER(CDPARANOIA, cdda_interface,
	cdda_open, -lm,
	cdda/cdda_interface.h,
	CDPARANOIA_LIBS="-lcdda_interface -lcdda_paranoia"
	HEADER_DIR="yes"
	FOUND_CDPARANOIA="yes")
	fi
	if test "x$HEADER_DIR" = "xyes";
	then
	AC_DEFINE_UNQUOTED(CDPARANOIA_HEADERS_IN_DIR, ,
	defined if cdda headers are in a cdda/ directory)
	fi
	AC_SUBST(CDPARANOIA_LIBS)
	])
	dnl FIXME : add second check somehow if that is necessary
	dnl AC_CHECK_LIB(cdda_paranoia, paranoia_init, : , HAVE_CDPARANOIA=no, -lcdda_interface )
	dnl AC_CHECK_HEADER(cdda_paranoia.h, :, HAVE_CDPARANOIA=no)
	GST_CHECK_FEATURE(EXTERNAL, [enable building of plug-ins with external deps],,
	[HAVE_EXTERNAL=yes], enabled,
	[
	AC_MSG_NOTICE(building external plug-ins)
	BUILD_EXTERNAL="yes"
	],[
	AC_MSG_NOTICE(all plug-ins with external dependencies will not be built)
	BUILD_EXTERNAL="no"
	])


	dnl * Gnome VFS *
	translit(dnm, m, l) AM_CONDITIONAL(USE_GNOME_VFS, true)
	GST_CHECK_FEATURE(GNOME_VFS, [Gnome VFS], gnomevfssrc, [
	PKG_CHECK_MODULES(GNOME_VFS, gnome-vfs-2.0, HAVE_GNOME_VFS="yes", HAVE_GNOME_VFS="no")
	AC_SUBST(GNOME_VFS_CFLAGS)
	AC_SUBST(GNOME_VFS_LIBS)
	])

	dnl * libvisual *
	translit(dnm, m, l) AM_CONDITIONAL(USE_LIBVISUAL, true)
	GST_CHECK_FEATURE(LIBVISUAL, [libvisual visualization plugins], libvisual, [
	PKG_CHECK_MODULES(LIBVISUAL, libvisual = 0.2.0, HAVE_LIBVISUAL="yes", HAVE_LIBVISUAL="no")
	AC_SUBST(LIBVISUAL_CFLAGS)
	AC_SUBST(LIBVISUAL_LIBS)
	])

	dnl * ogg *
	translit(dnm, m, l) AM_CONDITIONAL(USE_OGG, true)
	GST_CHECK_FEATURE(OGG, [ogg de/encoder], oggdemux oggmux, [
	PKG_CHECK_MODULES(OGG, ogg >= 1.0, [
	HAVE_OGG="yes"
	AC_SUBST(OGG_CFLAGS)
	AC_SUBST(OGG_LIBS)
	], [
	XIPH_PATH_OGG(HAVE_OGG="yes", HAVE_OGG="no")
	AS_SCRUB_INCLUDE(OGG_CFLAGS)
	])
	])

	dnl * pango *
	translit(dnm, m, l) AM_CONDITIONAL(USE_PANGO, true)
	GST_CHECK_FEATURE(PANGO, [pango], pango, [
	PKG_CHECK_MODULES(PANGO, pango pangoft2,
	HAVE_PANGO="yes", HAVE_PANGO="no")
	AC_SUBST(PANGO_CFLAGS)
	AC_SUBST(PANGO_LIBS)
	])

	dnl * theora *
	translit(dnm, m, l) AM_CONDITIONAL(USE_THEORA, true)
	GST_CHECK_FEATURE(THEORA, [ogg theora codec], theoradec theoraenc, [
	PKG_CHECK_MODULES(THEORA, theora, [
	HAVE_THEORA="yes"
	AC_SUBST(THEORA_LIBS)
	AC_SUBST(THEORA_CFLAGS)
	], [
	GST_CHECK_LIBHEADER(THEORA, theora, theora_version_string, "-logg", theora/theora.h, THEORA_LIBS="-ltheora -logg")
	AC_SUBST(THEORA_LIBS)
	])
	])

	dnl * vorbis *
	dnl AM_PATH_VORBIS only takes two options
	translit(dnm, m, l) AM_CONDITIONAL(USE_VORBIS, true)
	GST_CHECK_FEATURE(VORBIS, [vorbis plug-in], vorbisenc vorbisdec, [
	PKG_CHECK_MODULES(VORBIS, vorbis >= 1.0 vorbisenc >= 1.0, [
	HAVE_VORBIS="yes"
	], [
	XIPH_PATH_VORBIS(HAVE_VORBIS="yes", HAVE_VORBIS="no")
	AS_SCRUB_INCLUDE(VORBIS_CFLAGS)
	])
	])
	if test "x$HAVE_VORBIS" = "xyes"; then
	ac_cflags_save="$CFLAGS"
	dnl FIXME: does this work on non-gcc? -- Company
	dnl FIXME: no, it doesn't. Why is this here in the first place ? -- thomasvs
	CFLAGS="-Wall -Werror"
	AC_COMPILE_IFELSE(
	AC_LANG_PROGRAM([
	#include <vorbis/codec.h>
	],[
	vorbis_dsp_state *v;

	vorbis_synthesis_restart (v);
	]), HAVE_VSR=yes, HAVE_VSR=no)
	if test "x$HAVE_VSR" = "xyes"; then
	AC_DEFINE_UNQUOTED(HAVE_VORBIS_SYNTHESIS_RESTART, 1,
	[defined if vorbis_synthesis_restart is present])
	fi
	CFLAGS="$ac_cflags_save"
	fi

	fi dnl of EXT plugins

	dnl seeking needs freetype, so check for it here
	PKG_CHECK_MODULES(FT2, freetype2 >= 2.0.9, HAVE_FT2="yes", [
	AC_CHECK_FT2(2.0.9, HAVE_FT2="yes", HAVE_FT2="no")
	])
	dnl make the HAVE_FT2 variable available to automake and Makefile.am
	AM_CONDITIONAL(HAVE_FT2, test "x$HAVE_FT2" = "xyes")
	AC_SUBST(FT2_CFLAGS)
	AC_SUBST(FT2_LIBS)

	dnl *** finalize CFLAGS, LDFLAGS, LIBS

	dnl Overview:
	dnl GST_OPTION_CFLAGS: common flags for profiling, debugging, errors, ...
	dnl GST_*: flags shared by built objects to link against GStreamer
	dnl GST_ALL_LDFLAGS: linker flags shared by all
	dnl GST_LIB_LDFLAGS: additional linker flags for all libaries
	dnl GST_LT_LDFLAGS: library versioning of our libraries
	dnl GST_PLUGIN_LDFLAGS: flags to be used for all plugins

	dnl GST_OPTION_CFLAGS
	if test "x$USE_DEBUG" = xyes; then
	PROFILE_CFLAGS="-g"
	fi
	AC_SUBST(PROFILE_CFLAGS)

	DEPRECATED_CFLAGS="-DGST_DISABLE_DEPRECATED"
	AC_SUBST(DEPRECATED_CFLAGS)

	dnl every flag in GST_OPTION_CFLAGS can be overridden at make time
	GST_OPTION_CFLAGS="\$(ERROR_CFLAGS) \$(DEBUG_CFLAGS) \$(PROFILE_CFLAGS) \$(GCOV_CFLAGS) \$(OPT_CFLAGS) \$(DEPRECATED_CFLAGS)"
	AC_SUBST(GST_OPTION_CFLAGS)

	dnl our libraries need to be versioned correctly
	AC_SUBST(GST_LT_LDFLAGS)

	dnl FIXME: do we want to rename to GST_ALL_* ?
	dnl prefer internal headers to already installed ones
	dnl also add builddir include for enumtypes and marshal
	dnl add GST_OPTION_CFLAGS, but overridable
	GST_CFLAGS="-I\$(top_srcdir)/gst-libs -I\$(top_builddir)/gst-libs $GST_CFLAGS \$(GST_OPTION_CFLAGS)"
	AC_SUBST(GST_CFLAGS)
	AC_SUBST(GST_LIBS)

	dnl LDFLAGS really should only contain flags, not libs - they get added before
	dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
	GST_ALL_LDFLAGS="-no-undefined"
	AC_SUBST(GST_ALL_LDFLAGS)

	dnl GST_LIB_LDFLAGS
	dnl linker flags shared by all libraries
	dnl LDFLAGS modifier defining exported symbols from built libraries
	GST_LIB_LDFLAGS="-export-symbols-regex [_]\(gst_\\|Gst\\|GST_\)."
	AC_SUBST(GST_LIB_LDFLAGS)

	dnl this really should only contain flags, not libs - they get added before
	dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
	GST_PLUGIN_LDFLAGS="-module -avoid-version -export-symbols-regex '^[_]*gst_plugin_desc\$\$' $GST_ALL_LDFLAGS"
	AC_SUBST(GST_PLUGIN_LDFLAGS)

	dnl * output files *

	AC_CONFIG_FILES(
	Makefile
	gst-plugins-base.spec
	gst/Makefile
	gst/adder/Makefile
	gst/audioconvert/Makefile
	gst/audiorate/Makefile
	gst/audioresample/Makefile
	gst/audiotestsrc/Makefile
	gst/ffmpegcolorspace/Makefile
	gst/playback/Makefile
	gst/subparse/Makefile
	gst/tcp/Makefile
	gst/typefind/Makefile
	gst/videotestsrc/Makefile
	gst/videorate/Makefile
	gst/videoscale/Makefile
	gst/volume/Makefile
	sys/Makefile
	sys/ximage/Makefile
	sys/xvimage/Makefile
	sys/v4l/Makefile
	ext/Makefile
	ext/alsa/Makefile
	ext/cdparanoia/Makefile
	ext/gnomevfs/Makefile
	ext/libvisual/Makefile
	ext/ogg/Makefile
	ext/pango/Makefile
	ext/theora/Makefile
	ext/vorbis/Makefile
	gst-libs/Makefile
	gst-libs/gst/Makefile
	gst-libs/gst/audio/Makefile
	gst-libs/gst/cdda/Makefile
	gst-libs/gst/floatcast/Makefile
	gst-libs/gst/interfaces/Makefile
	gst-libs/gst/netbuffer/Makefile
	gst-libs/gst/riff/Makefile
	gst-libs/gst/rtp/Makefile
	gst-libs/gst/tag/Makefile
	gst-libs/gst/video/Makefile
	tools/Makefile
	pkgconfig/Makefile
	pkgconfig/gstreamer-plugins-base.pc
	pkgconfig/gstreamer-plugins-base-uninstalled.pc
	tests/Makefile
	tests/check/Makefile
	tests/examples/Makefile
	tests/examples/seek/Makefile
	tests/examples/volume/Makefile
	tests/icles/Makefile
	docs/Makefile
	docs/libs/Makefile
	docs/plugins/Makefile
	docs/version.entities
	po/Makefile.in
	common/Makefile
	common/m4/Makefile
	m4/Makefile
	)
	AC_OUTPUT

	echo "configure: *** Core plug-ins, always built:"
	( for i in $GST_PLUGINS_ALL; do echo -e '\t'$i; done ) \| sort
	echo
	echo -n "configure: *** Plug-ins relying on libraries that will be built:"
	echo -e "$GST_PLUGINS_YES" \| sort
	echo
	echo -n "configure: *** Plug-ins relying on libraries that will NOT be built:"
	echo -e "$GST_PLUGINS_NO" \| sort
	echo
	if test "x$BUILD_EXTERNAL" = "xno"; then
	echo "configure: *** No external plug-ins will be built"
	fi