anchor.diff:        description = "What modules shipped with versions of perl";
         license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
       };
  +  };
  +
  +  ModuleExtractUse = buildPerlModule rec {
  +     name = "Module-ExtractUse-0.342";
  +     src = fetchurl {
  +       url = mirror://cpan/authors/id/D/DO/DOMM/Module-ExtractUse-0.342.tar.gz;
  +       sha256 = "06z6iz4zc1rdm3w3zkddgv832rghlpvb4r494vdz65pphr65saax";
  +     };
  +     propagatedBuildInputs = [ ParseRecDescent PodStrip ];
  +     buildInputs = [ TestDeep TestNoWarnings ];
  +     meta = {
  +       description = "Find out what modules are used";
  +       license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
  +     };
     };
   
     ModuleFind = buildPerlPackage {
  
positive.code:     buildInputs = [ TestDifferences ];
    };
  
    TestLeakTrace = buildPerlPackage rec {
      name = "Test-LeakTrace-0.16";
      src = fetchurl {
  
negative.code:     propagatedBuildInputs = [ DevelCheckCompiler ];
    };
  
    ModuleCPANTSAnalyse = buildPerlPackage rec {
       name = "Module-CPANTS-Analyse-0.96";
       src = fetchurl {
         url = mirror://cpan/authors/id/I/IS/ISHIGAKI/Module-CPANTS-Analyse-0.96.tar.gz;
         sha256 = "1c38fnbx9w1s841am1i5h33lcqr9bwc9bni21n907nmyp41wr297";
       };
       propagatedBuildInputs = [ ArchiveAnyLite ArrayDiff CPANDistnameInfo FileFindObject IOCapture JSONMaybeXS ModuleExtractUse ModulePluggable SetScalar SoftwareLicenseCCpack ];
       buildInputs = [ ExtUtilsMakeMakerCPANfile TestFailWarnings ];
       meta = {
         description = "Generate Kwalitee ratings for a distribution";
         license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
         homepage = "http://cpants.cpanauthors.org";
       };
    };
  
    ModuleCPANfile = buildPerlPackage rec {
       name = "Module-CPANfile-1.1002";
       src = fetchurl {
         url = mirror://cpan/authors/id/M/MI/MIYAGAWA/Module-CPANfile-1.1002.tar.gz;
         sha256 = "1z9wsps70h7ypaxmwq8l8wp0dg4kqrxmaqgzbh2fq8jw9idw55dz";
       };
       meta = {
         description = "Parse cpanfile";
         license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
         homepage = "https://github.com/miyagawa/cpanfile";
       };
    };
  
    ModuleCoreList = buildPerlPackage {
      name = "Module-CoreList-5.20180221";
      src = fetchurl {
  