X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fcmm%2FCmmParse.y;h=ad388e582aaa8602bef5d04e2e7e98cbf7192e50;hb=eb5ba64de7cbef6c541d87e3afb644c1115ce103;hp=7ad1dd55a74ff41d064354451971c5e4d2417c4c;hpb=b017f34bebf1588e5e579d7c653413e2a4c2d170;p=ghc-hetmet.git

diff --git a/compiler/cmm/CmmParse.y b/compiler/cmm/CmmParse.y
index 7ad1dd5..ad388e5 100644
--- a/compiler/cmm/CmmParse.y
+++ b/compiler/cmm/CmmParse.y
@@ -9,7 +9,15 @@
 -----------------------------------------------------------------------------
 
 {
-{-# OPTIONS -Wwarn -w #-}
+{-# 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.
+--
 -- 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