RE: FFI - some comments

Greencard: Seems to work pretty well overall.. I dont beleive it supports hugs/ffi, but it does support hugs.

That's correct. The FFI support recently added to Hugs is not yet in a state to support GreenCard. The main thing lacking is an up to date StdDIS and updating Hugs FFI-related types and libraries (Foreign objects, Int, Addr, Word, Ptr a, etc.) match GreenCard's assumptions (i.e., GHC and, I think, NHC). In the meantime, GreenCard still works great with Hugs when you use --target=hugs (which doesn't use the new ffi support). -- Alastair Reid