anchor.diff:  , gtk3
   , libepoxy
   , librsvg
  +, libx11
   , mpv
   , python2Packages
   , shared-mime-info
   , wayland
  -, xorg
   }:
   
   let
     inherit (lib)
       boolEn;
   
  -  version = "2017-07-24";
  +  version = "2017-08-02";
   in
   stdenv.mkDerivation rec {
     name = "gnome-mpv-${version}";
  
positive.code:     gtk3
      libepoxy
      librsvg
      mpv
      python2Packages.youtube-dl
      shared-mime-info
      wayland
      xorg.libX11
    ];
  
    preConfigure = /* Ignore autogen.sh and run the commands manually */ ''
  
negative.code:     version = 3;
      owner = "gnome-mpv";
      repo = "gnome-mpv";
      rev = "be654fb2ca9833d8ac19bd8cada28071a360acf2";
      sha256 = "30f6975c84de0a2518f6dc74d55f58748dcbd4d121a58fce5dc2fb1c9e16d887";
    };
  
    nativeBuildInputs = [
  