anchor.diff:    src = fetchurl {
       url = "${baseUrl}/${name}.tar.xz";
       hashOutput = false;
  -    sha256 = "adc623b9e3e3ab5c14145b8baf21b741e513ee5bf90d2b4d85a745c2f05da199";
  +    sha256 = "41d188092c52e23d576af41cf0cfe0555d8f7efa21598d4c57c56ea1b6d9c975";
     };
   
     buildInputs = [
  
positive.code:     };
    };
  
    meta = with stdenv.lib; {
      description = "LUKS for dm-crypt";
      homepage = http://code.google.com/p/cryptsetup/;
      license = licenses.gpl2;
  
negative.code: { stdenv
  , fetchurl
  , lib
  
  , json-c
  , libargon2
  