X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=GHC%2FIOBase.hs;h=4177b07ae317bf167a2c4dd8f049bef1117bbea0;hb=41e8fba828acbae1751628af50849f5352b27873;hp=c80756a3ae4fd83cc381ebbc1f9e3a5c79a91101;hpb=ac0439db2ece671089cec9ade21754c3ad22c134;p=ghc-base.git

diff --git a/GHC/IOBase.hs b/GHC/IOBase.hs
index c80756a..4177b07 100644
--- a/GHC/IOBase.hs
+++ b/GHC/IOBase.hs
@@ -1,4 +1,6 @@
+{-# LANGUAGE DeriveDataTypeable #-}
 {-# OPTIONS_HADDOCK hide #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  GHC.IOBase