[Haskell] (GHC) Boot files and instance declarations

Hi all. A quick bootfiles question. The GHC docs specify not to put instance decls in bootfiles. However, what if i need to? For example, say I have a module A where I'm importing a module B with the {-# SOURCE #-} pragma. Module A needs to know that the types in module B are instances of some typeclasses (instance declarations for which are given in module B). How would I manage this? Thanks in advance. -- -David House, dmhouse@gmail.com, http://xmouse.ithium.net