[arch-haskell] Updated cabal2arch

[Don Stewart]

matt:
> On Wed, Jan 14, 2009 at 06:03:55PM -0800, Don Stewart wrote:
> > I updated cabal2arch to match the "implicit package" list provided by
> > our GHC 6.10 package, based on :
> 
> I sent you a patch a long time ago to automatically populate this list
> based on GHC's pkg database.
> 
> Was it of any use here?
> 

Yes, I looked for that patch. If I recall, there were some portability
issues with that patch. But perhaps we can use it in a standalone form?