rec {
   version="1.96";
   name="asymptote-1.96";
   hash="0rs2h77j3nq36w0vr131yvlp8lqsanidhf9fvd4bggz5j5r8r850";
   url="http://downloads.sourceforge.net/project/asymptote/asymptote/${version}/asymptote-${version}.src.tgz";
   advertisedUrl="http://downloads.sourceforge.net/project/asymptote/asymptote/1.96/asymptote-1.96.src.tgz";
  
  
}