[Haskell-cafe] Wanted: Haskell binding for libbdd (buddy)

Are there any Haskell bindings for BDD libraries (reduced ordered binary decision diagrams)? E.g., it seems "buddy" is commonly used http://packages.debian.org/squeeze/libbdd-dev and it has an Ocaml binding. Yes, there is http://hackage.haskell.org/package/obdd but I need better performance (with the same API, ideally). Thanks - J.W. PS: I wonder where performance goes out the window ... I suspect "Map (Int,Int) whatever" should really be a hashtable but I don't like it in IO, it should be in ST?