anchor.diff:      src = fetchurl {
         url = "mirror://cpan/modules/by-module/Math/${name}.tar.gz";
         sha256 = "194dvggf1cmzc701j4wma38jgrcv2pwwzk69rnysjjdcjdv6y255";
  +    };
  +  };
  +
  +  MethodSignaturesSimple = buildPerlPackage {
  +    name = "Method-Signatures-Simple-1.07";
  +    src = fetchurl {
  +      url = mirror://cpan/authors/id/R/RH/RHESA/Method-Signatures-Simple-1.07.tar.gz;
  +      sha256 = "1p6sf6iyyn73pc89mfr65bzxvbw1ibcsp4j10iv8ik3p353pvkf8";
  +    };
  +    propagatedBuildInputs = [ DevelDeclare ];
  +    meta = {
  +      description = "Basic method declarations with signatures, without source filters";
  +      license = "perl";
       };
     };
   
  
positive.code:     };
    };
  
    DevelGlobalDestruction = buildPerlPackage {
      name = "Devel-GlobalDestruction-0.09";
      src = fetchurl {
  
negative.code:       sha256 = "1a77hxf2pa8ia9na72rijv1yhpn2bjrdsybwk2dj2l938pl3xn0w";
      };
      propagatedBuildInputs = [ CaptureTiny ];
    };
  
    ExtUtilsDepends = buildPerlPackage {
      name = "ExtUtils-Depends-0.304";
      src = fetchurl {
        url = mirror://cpan/authors/id/F/FL/FLORA/ExtUtils-Depends-0.304.tar.gz;
        sha256 = "0fjlkcz1i1j02hhwi1wjgd79qlppjkbasrj44h5ry1f238g6a1q3";
      };
      meta = {
        license = "perl";
      };
    };
  
    ExtUtilsLibBuilder = buildPerlModule {
  