GHCI Can't Find Module But GHC Can

[Simon Marlow]

> > Aha!  GHCi (and ghc --make) has a pre-pass that looks through the
> > file for import declarations so it can build the dependency tree,
> > and it does this without using a proper Haskell parser.  I'll bet
> > it's ignoring the CPP directives.  Probably it should flag an error,
> > I'll look into it.
>=20
> Using an improper parser sounds a little delicate.

Yes, it is - I've never really been happy with the way we do that.
Sigh, another thing for the TODO list....

Cheers,
	Simon