anchor.diff:  
     src = fetchurl {
       url = "https://www.wireshark.org/download/src/all-versions/wireshark-${version}.tar.xz";
  -    sha256 = "sha256-3hqv0QCh4SB8hQ0YDpfdkauNoPXra+7FRfclzbFF0zM=";
  +    sha256 = "0a26kcj3n1a2kw1f3fc6s1x3rw3f3bj2cq6rp7k0kc4ciwh7i9hj";
     };
   
     cmakeFlags = [
  
positive.code: 
    meta = with lib; {
      homepage = "https://www.wireshark.org/";
      description = "Powerful network protocol analyzer";
      license = licenses.gpl2Plus;
  
  
negative.code: with lib;
  
  let
    version = "3.4.6";
    variant = if withQt then "qt" else "cli";
  
  in stdenv.mkDerivation {
  