anchor.diff:        url = "mirror://cpan/modules/by-module/Math/${name}.tar.gz";
         sha256 = "0i9wzvig7ayijc9nvh5x5rryk1jrcj1hcvfmlcj449rnnxx24dav";
       };
  +    nativeBuildInputs = [ pkgs.ld-is-cc-hook ];
       propagatedBuildInputs = [ ModuleBuildWithXSpp ExtUtilsXSpp ExtUtilsTypemapsDefault TestDeep ];
     };
   
  
positive.code:       url = "mirror://cpan/authors/id/J/JG/JGMYERS/${name}.tar.gz";
        sha256 = "834d893aa7db6ce3f158afbd0e432d6ed15a276e0940db0a74be13fd9c4bbbf1";
      };
      propagatedBuildInputs = [ ModuleBuild ];
      meta = {
        description = "An Encode::Encoding subclass that detects the encoding of data";
  
negative.code:       url = "mirror://cpan/modules/by-module/ExtUtils/${name}.tar.gz";
        sha256 = "1a77hxf2pa8ia9na72rijv1yhpn2bjrdsybwk2dj2l938pl3xn0w";
      };
      nativeBuildInputs = [ pkgs.ld-is-cc-hook ];
      propagatedBuildInputs = [ CaptureTiny ];
    };
  
  