Use explicit language extensions & remove extension fields from base.cabal

[ghc-base.git] / System / Timeout.hs

diff --git a/System/Timeout.hs b/System/Timeout.hs
index f27a936..b1c79b3 100644 (file)
--- a/System/Timeout.hs
+++ b/System/Timeout.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE CPP #-}
+
 -------------------------------------------------------------------------------
 -- |
 -- Module      :  System.Timeout
@@ -27,7 +29,6 @@ import Control.Concurrent  (forkIO, threadDelay, myThreadId, killThread)
 import Control.Exception   (Exception, handleJust, throwTo, bracket)
 import Data.Typeable
 import Data.Unique         (Unique, newUnique)
-import GHC.Num
 
 -- An internal type that is thrown as a dynamic exception to
 -- interrupt the running IO computation when the timeout has