anchor.diff:  
   stdenv.mkDerivation rec {
     name = "gnome-mpv-${version}";
  -  version = "2016-05-25";
  +  version = "2016-05-13";
   
     src = fetchFromGitHub {
       owner = "gnome-mpv";
       repo = "gnome-mpv";
  -    rev = "b1141f5c405b5b8d3cef63f74ca92fa0a59700fe";
  -    sha256 = "8fea8e4df66bfdceff418074a10f68a9ea6f8e3421a04f27060eab268329c65f";
  +    rev = "25331500ae54c7ec94bd9ac954125ae025219378";
  +    sha256 = "2466643dae3c56dd33f7487375e014f07326a43d083349e5da0533ec07738fbb";
     };
   
     nativeBuildInputs = [
  
positive.code: , libepoxy
  , librsvg
  , mpv
  , pythonPackages
  , wayland
  , xorg
  }:
  
negative.code:     libepoxy
      librsvg
      mpv
      python2Packages.youtube-dl
      wayland
      xorg.libX11
    ];
  