anchor.diff:  
     src = fetchurl {
       url = "http://www.wireshark.org/download/src/all-versions/wireshark-${version}.tar.bz2";
  -    sha256 = "0jd89i9si43lyv3hsl6p1lkjmz4zagvc37wcbigsxxc5v8gda9zn";
  +    sha256 = "1dfvhra5v6xhzbp097qsxi0zvirw0srbasl4v1wjf58v49idz7b8";
     };
   
     nativeBuildInputs = [
  
positive.code:   enableParallelBuilding = true;
  
    meta = with stdenv.lib; {
      homepage = http://www.wireshark.org/;
      description = "Powerful network protocol analyzer";
      license = licenses.gpl2;
  
  
negative.code: with stdenv.lib;
  
  let
    version = "2.2.7";
    variant = if withGtk then "gtk" else if withQt then "qt" else "cli";
  
  in stdenv.mkDerivation {
  