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-rw-r--r--libraries/base/GHC/MVar.hs4
1 files changed, 3 insertions, 1 deletions
diff --git a/libraries/base/GHC/MVar.hs b/libraries/base/GHC/MVar.hs
index 348ae51a67..8c653dca6a 100644
--- a/libraries/base/GHC/MVar.hs
+++ b/libraries/base/GHC/MVar.hs
@@ -1,5 +1,7 @@
-{-# OPTIONS_GHC -XNoImplicitPrelude -funbox-strict-fields #-}
+{-# LANGUAGE NoImplicitPrelude, MagicHash, UnboxedTuples #-}
+{-# OPTIONS_GHC -funbox-strict-fields #-}
{-# OPTIONS_HADDOCK hide #-}
+
-----------------------------------------------------------------------------
-- |
-- Module : GHC.MVar