anchor.diff:       propagatedBuildInputs = [ SubExporter TextDiff ];
        buildInputs = [ TestDifferences TestNoWarnings ];
        meta = {
  +     };
  +  };
  +
  +  TestHexString = buildPerlModule rec {
  +     name = "Test-HexString-0.03";
  +     src = fetchurl {
  +       url = mirror://cpan/authors/id/P/PE/PEVANS/Test-HexString-0.03.tar.gz;
  +       sha256 = "0h1zl2l1ljlcxsn0xvin9dwiymnhyhnfnxgzg3f9899g37f4qk3x";
  +     };
  +     meta = {
  +       description = "test binary strings with hex dump diagnostics";
  +       license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
        };
     };
   
  
positive.code:     };
    };
  
    PlackMiddlewareMethodOverride = buildPerlPackage rec {
      name = "Plack-Middleware-MethodOverride-0.15";
      src = fetchurl {
  
negative.code:     meta = {
        description = "Extensible, general Perl server engine";
      };
    };
  
    NetServerCoro = buildPerlPackage rec {
       name = "Net-Server-Coro-1.3";
       src = fetchurl {
         url = mirror://cpan/authors/id/A/AL/ALEXMV/Net-Server-Coro-1.3.tar.gz;
         sha256 = "11pvfxsi0q37kd17z597wb8r9dv3r96fiagq57kc746k1lmp06hy";
       };
       propagatedBuildInputs = [ Coro NetServer ];
       meta = {
         description = "A co-operative multithreaded server using Coro";
         license = with stdenv.lib.licenses; [ mit ];
       };
    };
  
    NetSMTP = libnet;
  