anchor.diff:  
         homepage = http://www.simutrans.com/;
         license = with licenses; [ artistic1 gpl1Plus ];
  -      maintainers = with maintainers; [ kkallio vcunat ];
  +      maintainers = with maintainers; [ kkallio vcunat phile314 ];
         platforms = with platforms; linux ++ darwin;
       };
     };
  
positive.code:   );
  
    ver1 = "120";
    ver2 = "0";
    ver3 = "1";
    version =   "${ver1}.${ver2}.${ver3}";
    ver_dash =  "${ver1}-${ver2}-${ver3}";
  
negative.code: 
    binary_src = fetchurl {
      url = "mirror://sourceforge/simutrans/simutrans/${ver_dash}/simutrans-src-${ver_dash}.zip";
      sha256 = "00cyxbn17r9p1f08jvx1wrhydxknkrxj5wk6ld912yicfql998r0";
    };
  
  
  