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-rw-r--r--compiler/cmm/Cmm.hs7
1 files changed, 7 insertions, 0 deletions
diff --git a/compiler/cmm/Cmm.hs b/compiler/cmm/Cmm.hs
index f18b417ad9..93a1dc1e52 100644
--- a/compiler/cmm/Cmm.hs
+++ b/compiler/cmm/Cmm.hs
@@ -2,6 +2,13 @@
{-# LANGUAGE GADTs #-}
{-# OPTIONS_GHC -fno-warn-warnings-deprecations #-}
+{-# OPTIONS -fno-warn-tabs #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and
+-- detab the module (please do the detabbing in a separate patch). See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#TabsvsSpaces
+-- for details
+
{-# OPTIONS_GHC -fno-warn-incomplete-patterns #-}
#if __GLASGOW_HASKELL__ >= 703
-- GHC 7.0.1 improved incomplete pattern warnings with GADTs