Add LANGUAGE BangPatterns to modules that use bang patterns

[ghc-base.git] / GHC / Weak.lhs

diff --git a/GHC/Weak.lhs b/GHC/Weak.lhs
index 8608727..af44c88 100644 (file)
--- a/GHC/Weak.lhs
+++ b/GHC/Weak.lhs
@@ -1,4 +1,5 @@
 \begin{code}
+{-# LANGUAGE BangPatterns #-}
 {-# OPTIONS_GHC -XNoImplicitPrelude #-}
 {-# OPTIONS_HADDOCK hide #-}
 -----------------------------------------------------------------------------
@@ -20,7 +21,6 @@ module GHC.Weak where
 
 import GHC.Base
 import Data.Maybe
-import GHC.IO          ( IO(..), unIO )
 import Data.Typeable
 
 {-|