anchor.diff:      };
       meta = {
         description = "Perl interface to PARI";
  -      license = with lib.licenses; [ artistic1 gpl1Plus gpl2 ];
  +      license = with lib.licenses; [ artistic1 gpl1Plus gpl2Only ];
       };
     };
   
  
positive.code:     meta = {
        description = "A fast and simple mbox folder reader";
        homepage = "https://github.com/coppit/mail-mbox-messageparser";
        license = with lib.licenses; [ gpl2 ];
        maintainers = with maintainers; [ romildo ];
      };
    };
  
negative.code:     meta = {
        description = "FileHandle which supports multi-byte unget";
        homepage = "https://github.com/coppit/filehandle-unget";
        license = with lib.licenses; [ gpl2Only ];
        maintainers = with maintainers; [ romildo ];
      };
    };
  