-{-# OPTIONS_GHC -XNoImplicitPrelude -funbox-strict-fields #-}
+{-# LANGUAGE NoImplicitPrelude, MagicHash, UnboxedTuples #-}
+{-# OPTIONS_GHC -funbox-strict-fields #-}
{-# OPTIONS_HADDOCK hide #-}
+
-----------------------------------------------------------------------------
-- |
-- Module : GHC.MVar