Ok, I thought I'd try out the latest CVS Hugs with the new libraries, so I can try to avoid checking in breaking changes to the libraries in the future. Here's where I got to: - I discovered that saying 'make' in src/unix gives you a version of Hugs that works well in-place without having to give it any extra options. This is nice, perhaps the Install doc could mention it? - 'make libraries' in src/ seemed to go smoothly. Then I discovered that I couldn't :load Foreign in Hugs, because it needs the FFI declarations to be processed first (the docs do mention this, but I don't read docs until something goes wrong :-) - So I tried 'make install_libraries_ffi' which looks like it ought to do the right thing. I commented out the dependencies on 'install' etc. since I don't want to install anything (perhaps this could be an option? or a separate make target?). Anway, I got the following error: ~/tmp/hugs98/src > make install_libraries_ffi ./ffihugs -P'{Hugs}/libraries:{Hugs}/oldlib:{Hugs}/lib/hugs' +G +L"../libraries/Hugs/Storable_aux.c" Hugs.Storable runhugs: Error occurred Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/Prelude.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Prelude.hs": Reading file "/home/simonmar/tmp/hugs98/lib/hugs/HugsDynamic.hs": Reading file "/home/simonmar/tmp/hugs98/oldlib/IOExts.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/IOExts.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/IO.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Ix.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/IO.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/IOExts.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/IORef.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/IOArray.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/Array.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/List.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Maybe.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/List.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/Array.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Dynamic.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Either.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Int.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/Int.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Bits.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/Int.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Int.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Word.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/Word.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Ratio.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/Word.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Word.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Foreign/Ptr.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Foreign/StablePtr.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/StablePtr.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Foreign/StablePtr.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Data/Dynamic.hs": Reading file "/home/simonmar/tmp/hugs98/libraries/Hugs/IOArray.hs": Reading file "/home/simonmar/tmp/hugs98/oldlib/IOExts.hs": Reading file "/home/simonmar/tmp/hugs98/oldlib/Addr.hs": Reading file "/home/simonmar/tmp/hugs98/lib/hugs/HugsDynamic.hs": INTERNAL ERROR: checkImportEntity2 Cheers, Simon