anchor.diff:    };
   
     patchPhase = ''
  +
       sed -i 's@/bin/echo@echo@g' configure
       sed -i -e 's/^   /\t/' docs/{libs,plugins}/Makefile.in
     '';
   
     # TODO : v4l, libvisual
     buildInputs =
  -    [ pkgconfig glib cairo ]
  +    [ pkgconfig glib cairo orc ]
       # can't build alsaLib on darwin
       ++ stdenv.lib.optional (!stdenv.isDarwin) alsaLib
       ++ stdenv.lib.optionals (!minimalDeps)
  
positive.code:   NIX_CFLAGS_COMPILE = stdenv.lib.optionalString stdenv.isDarwin "-lintl";
  
    propagatedBuildInputs = [ gstreamer ];
   
    postInstall = "rm -rf $out/share/gtk-doc";
    
    meta = with stdenv.lib; {
      homepage    = http://gstreamer.freedesktop.org;
      description = "Base plug-ins for GStreamer";
  
negative.code: { fetchurl, stdenv, pkgconfig, python, gstreamer, xlibs, alsaLib, cdparanoia
  , libogg, libtheora, libvorbis, freetype, pango, liboil, glib, cairo, orc
  , libintlOrEmpty
  , # Whether to build no plugins that have external dependencies
    # (except the ALSA plugin).
  