rec {
   version="v4_6_1";
   name="gambit-v4_6_1";
   hash="0ad6c63dg5ggaamixxinvlf3128mra8xzss5chh66lkii4dc3m7g";
   url="http://www.iro.umontreal.ca/~gambit/download/gambit/v4.6/source/gambc-${version}-devel.tgz";
   advertisedUrl="http://www.iro.umontreal.ca/~gambit/download/gambit/v4.6/source/gambc-v4_6_1-devel.tgz";
  
  
}