Re: GHC 3.02 bugs

[Sigbjorn Finne]

> 
> When compiling the latest Green Card (290598) with -O, ghc-3.02 fails
> with an internal error:
> 
>    [...]
>    ghc-3.02 -O -recomp    -c FillIn.lhs -o FillIn.o
>    ClosureInfo.lhs:1128: Non-exhaustive patterns in case
> 

The work-around suggested of compiling with -Onot should work fine,
but a less restrictive alternative is to compile with
-fno-prune-tydecls. 

For the Green Card source, this only applies to FillIn.lhs - I've
updated the distribution Makefile to reflect this.

--Sigbjorn