Work around missing type signature in Happy

[ghc-hetmet.git] / utils / hpc / HpcParser.y

diff --git a/utils/hpc/HpcParser.y b/utils/hpc/HpcParser.y
index b99e324..b4d8c79 100644 (file)
--- a/utils/hpc/HpcParser.y
+++ b/utils/hpc/HpcParser.y
@@ -1,5 +1,13 @@
 { 
-{-# OPTIONS -Wwarn #-}
+{-# OPTIONS -Wwarn -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.
+--
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and fix
 -- any warnings in the module. See