-fno-warn-incomplete-patterns ignored

[Rahul Bhargava]

Hi,

Preliminary experimentation with code that compiles with
ghc-5.02 and falls over with ghc-5.02.1 suggests that
the -fno-warn-incomplete-patterns flag is ignored.

Ghc falls over with,

ghc-5.02.1:panic! (the `impossible' happened, GHC version 5.02.1):
/tmp/ghc[].lpp:[]: Non-exhaustive patterns in case.

I'll attempt to put together a demonstrative case.

Apologies for being trigger happy.

Cheers
Rahul