anchor.diff:  { stdenv
   , fetchTritonPatch
   , fetchurl
  +, gettext
   
   , a52dec
   , alsa-lib
  
positive.code:     libdvdnav.libdvdread
      libebml
      libgcrypt
      libkate
      libmad
      libmatroska
  
negative.code:     unzip
      v4l_lib
      xorg.xcbutilkeysyms
      xorg.libX11
      xorg.libxcb
      xorg.libXpm
      xorg.libXv
      xorg.libXvMC
      xorg.xproto
      xz
      zlib
    ];
  