CVS Hugs FFI problems

[Simon Marlow]

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