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 0289cfc..8bf9453 100644 (file)
--- a/compiler/parser/ParserCore.y
+++ b/compiler/parser/ParserCore.y
@@ -1,4 +1,5 @@
 {
+{-# 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