anchor.diff:    inherit (stdenv.lib)
       enFlag
       optionals;
  +
  +  version = "1.11.0";
   in
  -
   stdenv.mkDerivation rec {
     name = "wayland-${version}";
  -  version = "1.10.0";
   
     src = fetchurl {
       url = "http://wayland.freedesktop.org/releases/${name}.tar.xz";
  -    sha256 = "1p307ly1yyqjnzn9dbv78yffql2qszn84qk74lwanl3gma8fgxjb";
  +    allowHashOutput = false;
  +    sha256 = "9540925f7928becfdf5e3b84c70757f6589bf1ceef09bea78784d8e4772c0db0";
     };
   
     nativeBuildInputs = [ ]
  
positive.code: 
    passthru = {
      inherit version;
    };
  
    meta = with stdenv.lib; {
  
negative.code:       wkennington
      ];
      platforms = with platforms;
        x86_64-linux;
    };
  }
  