Fix potential `mingw32_HOST_OS` -Werror failure
authorHerbert Valerio Riedel <hvr@gnu.org>
Sat, 20 Sep 2014 17:11:48 +0000 (19:11 +0200)
committerHerbert Valerio Riedel <hvr@gnu.org>
Sat, 20 Sep 2014 17:11:48 +0000 (19:11 +0200)
libraries/base/GHC/Conc/Windows.hs

index c01281a..aef7fbf 100644 (file)
@@ -38,9 +38,8 @@ module GHC.Conc.Windows
        , toWin32ConsoleEvent
        ) where
 
-import Control.Monad
+import Control.Monad (unless)
 import Data.Bits (shiftR)
-import Data.Maybe (Maybe(..))
 import Data.Typeable
 import GHC.Base
 import GHC.Conc.Sync