anchor.diff:      gst-plugins-base
       gmp
       ffmpeg
  -  ]);
  +  ];
   
     gstPluginsPath = concatMapStringsSep ":" (x:
       "${x}/lib/gstreamer-0.10") [
  
positive.code: # Pluggable transport dependencies
  , python27
  
  # Extra preferences
  , extraPrefs ? ""
  }:
  
negative.code:     # Setting FONTCONFIG_FILE is required to make fontconfig read the TBB
      # fonts.conf; upstream uses FONTCONFIG_PATH, but FC_DEBUG=1024
      # indicates the system fonts.conf being used instead.
      #
      # XDG_DATA_DIRS is set to prevent searching system dirs (looking for .desktop & icons)
      exec env -i \
        TZ=":" \
        TZDIR="\''${TZDIR:-}" \
        LOCALE_ARCHIVE="\$LOCALE_ARCHIVE" \
        \
        TMPDIR="\''${TMPDIR:-/tmp}" \
        HOME="\$HOME" \
        XAUTHORITY="\$XAUTHORITY" \
        DISPLAY="\$DISPLAY" \
        DBUS_SESSION_BUS_ADDRESS="\$DBUS_SESSION_BUS_ADDRESS" \
        \
        XDG_DATA_HOME="\$HOME/.local/share" \
        XDG_DATA_DIRS="$WRAPPER_XDG_DATA_DIRS" \
        \
        PULSE_SERVER="\''${PULSE_SERVER:-}" \
        PULSE_COOKIE="\''${PULSE_COOKIE:-}" \
  