darcs patch: avoid import renaming errors in nhc98 (and 2 more)

Mon Oct 6 11:21:53 BST 2008 Malcolm.Wallace@cs.york.ac.uk * avoid import renaming errors in nhc98 Mon Oct 6 11:22:48 BST 2008 Malcolm.Wallace@cs.york.ac.uk * fix import of Control.Exception for nhc98 Mon Oct 6 11:23:29 BST 2008 Malcolm.Wallace@cs.york.ac.uk * in cabal file, avoid -package syb when building with nhc98