Scott Dillard wrote: > Simon, Don, > > You're right. -fno-state-hack fixed it. I've opened a trac ticket. > Program and test data are there. > > http://hackage.haskell.org/trac/ghc/ticket/2284 Ok, but do we really need two tickets for this? Why open a new ticket rather than adding the information to the existing ticket? Cheers, Simon