anchor.diff:      propagatedBuildInputs = [ CaptureTiny TextDiff ];
       meta = {
         description = "Test strings and data structures and show differences if not ok";
  -      license = "unknown";
  +      license = "perl";
       };
     };
   
  
positive.code:     buildInputs = [ TestDeep ];
      meta = {
        description = "Build structures from CGI data";
        license = "bsd";
      };
    };
  
  
negative.code:     };
      meta = {
        description = "Modules for parsing/translating POD format documents";
        license = stdenv.lib.licenses.artistic1;
      };
    };
  
  