From e76fafaaeec65d2b4a98556561a96f40d81391ab Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Sat, 20 Sep 2014 17:37:24 +0200
Subject: Fix potential `mingw32_HOST_OS` breakage from eae19112462fe77

---
 libraries/base/Control/Concurrent.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libraries')

diff --git a/libraries/base/Control/Concurrent.hs b/libraries/base/Control/Concurrent.hs
index 9ab209e5d5..eaf1e6621f 100644
--- a/libraries/base/Control/Concurrent.hs
+++ b/libraries/base/Control/Concurrent.hs
@@ -123,7 +123,7 @@ import Foreign.C.Types
 #ifdef mingw32_HOST_OS
 import Foreign.C
 import System.IO
-import Data.Maybe (Maybe(..))
+import Data.Functor ( void )
 #endif
 
 import Control.Concurrent.MVar
-- 
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