anchor.diff:      zlib
     ];
   
  -  enableParallelBuilding = true;
  -
     meta = with stdenv.lib; {
       description = "Basepack of plugins for gstreamer";
       homepage = http://gstreamer.freedesktop.org;
  
positive.code:     (enFlag "gst_v4l" (libv4l != null) null)
      (enFlag "alsa" (alsaLib != null) null)
      (enFlag "cdparanoia" (cdparanoia != null) null)
      (enFlag "gnome_vfs" (gnome.gnome_vfs != null) null)
      # FIXME: compilation fails with ivorbis(tremor)
      "--disable-ivorbis"
      "--enable-gio"
  
negative.code:     })
    ];
  
    postPatch =
      /* Fix hardcoded path */ ''
        sed -i configure \
          -e 's@/bin/echo@echo@g'
      '' +
      /* The AC_PATH_XTRA macro unnecessarily pulls in libSM and libICE even
         though they are not actually used. This needs to be fixed upstream by
         replacing AC_PATH_XTRA with PKG_CONFIG calls. */ ''
        sed -i configure \
          -e 's:X_PRE_LIBS -lSM -lICE:X_PRE_LIBS:'
      '';
  
    configureFlags = [
      "--enable-option-checking"
  