-{-# OPTIONS -Wwarn -w -XNoMonomorphismRestriction #-}
--- The NoMonomorphismRestriction deals with a Happy infelicity
--- With OutsideIn's more conservativ monomorphism restriction
--- we aren't generalising
--- notHappyAtAll = error "urk"
--- which is terrible. Switching off the restriction allows
--- the generalisation. Better would be to make Happy generate
--- an appropriate signature.
---
+{-# LANGUAGE BangPatterns #-} -- required for versions of Happy before 1.18.6
+{-# OPTIONS -Wwarn -w #-}