rec {
   version="2.03";
   name="asymptote-2.03";
   hash="1npj9igf4b9dy1frriqc20ihm1s0f3yw2pgs0xc4rv514rp0wkpx";
   url="http://downloads.sourceforge.net/project/asymptote/asymptote/${version}/asymptote-${version}.src.tgz";
   advertisedUrl="http://downloads.sourceforge.net/project/asymptote/asymptote/2.03/asymptote-2.03.src.tgz";
  
  
}