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Drop System.Mem.Weak's dependency on Prelude
[ghc-base.git]
/
System
/
Mem
/
Weak.hs
diff --git
a/System/Mem/Weak.hs
b/System/Mem/Weak.hs
index
208302f
..
61dce1d
100644
(file)
--- a/
System/Mem/Weak.hs
+++ b/
System/Mem/Weak.hs
@@
-67,13
+67,16
@@
module System.Mem.Weak (
-- $precise
) where
-import Prelude
+import Data.Maybe (Maybe(..))
#ifdef __HUGS__
import Hugs.Weak
+import Prelude
#endif
#ifdef __GLASGOW_HASKELL__
+import GHC.Base (return)
+import GHC.Types (IO)
import GHC.Weak
#endif