Panic! The `impossible' happened. GHC 5.00.2 on RHL 6.2.

[Julian Seward (Intl Vendor)]

Tom

Thx for the (fine) bug report.

| ghc   -O2 -funfolding-use-threshold30 -H32M -funbox-strict-fields
[...]

-funbox-strict-fields doesn't work right in 5.00.2, and isn't supported.
Get rid of the flag and things might improve.  For more details, see the

5.00.2 known-bugs-and-workarounds page at

   http://haskell.cs.yale.edu/ghc/faq_500.html

-funbox-strict-fields _does_ work right in the head branch, so future
releases of the compiler should be ok with it.

J