anchor.diff:  , pythonPackages
   
   , aalib
  +, alsa-lib
   , atk
   , babl
   , bzip2
  
positive.code: , pango
  , poppler
  , xorg
  , zlib
  , ice
  }:
  
  stdenv.mkDerivation rec {
  
negative.code:     poppler
      pythonPackages.python
      pythonPackages.pygtk
      xorg.fixesproto
      xorg.libICE
      xorg.libSM
      xorg.libX11
      xorg.libXcursor
      xorg.libXext
      xorg.libXfixes
      xorg.libXmu
      xorg.libXpm
      xorg.libXt
      xorg.xproto
      xz
      zlib
    ];
  
    pythonPath = [
  