3 files changed, 21 insertions, 0 deletions
diff --git a/compiler/prelude/PrelInfo.lhs b/compiler/prelude/PrelInfo.lhs
index 98531e28af..bb3e54ada2 100644
--- a/compiler/prelude/PrelInfo.lhs
+++ b/compiler/prelude/PrelInfo.lhs
@@ -4,6 +4,13 @@
 \section[PrelInfo]{The @PrelInfo@ interface to the compiler's prelude knowledge}
 
 \begin{code}
+{-# 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
+
 module PrelInfo (
         wiredInIds, ghcPrimIds,
         primOpRules, builtinRules,
diff --git a/compiler/prelude/TysPrim.lhs b/compiler/prelude/TysPrim.lhs
index 81094acaa1..0c2de06924 100644
--- a/compiler/prelude/TysPrim.lhs
+++ b/compiler/prelude/TysPrim.lhs
@@ -6,6 +6,13 @@
 \section[TysPrim]{Wired-in knowledge about primitive types}
 
 \begin{code}
+{-# 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
+
 -- | This module defines TyCons that can't be expressed in Haskell. 
 --   They are all, therefore, wired-in TyCons.  C.f module TysWiredIn
 module TysPrim(
diff --git a/compiler/prelude/TysWiredIn.lhs b/compiler/prelude/TysWiredIn.lhs
index a2daf1535c..54acefc087 100644
--- a/compiler/prelude/TysWiredIn.lhs
+++ b/compiler/prelude/TysWiredIn.lhs
@@ -4,6 +4,13 @@
 \section[TysWiredIn]{Wired-in knowledge about {\em non-primitive} types}
 
 \begin{code}
+{-# 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
+
 -- | This module is about types that can be defined in Haskell, but which
 --   must be wired into the compiler nonetheless.  C.f module TysPrim
 module TysWiredIn (