No type lib generated by hdirect

I am trying to build a Haskell COM component with HDirect (from http://www.galconn.com/~sof/hdirect-0.18-src.tar.gz) and "ghc 5.02". I have problems generating the type library: it is simply not created. Even the comserv example is not working because of the same problem. Could that be a bug in that HDirect version? Patrick