Add an extension for GHC's layout-rule relaxations

[ghc-hetmet.git] / compiler / parser / ParserCore.y

diff --git a/compiler/parser/ParserCore.y b/compiler/parser/ParserCore.y
index 8cfafae..8bf9453 100644 (file)
--- a/compiler/parser/ParserCore.y
+++ b/compiler/parser/ParserCore.y
@@ -1,13 +1,6 @@
 {
-{-# 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 #-}
 -- 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