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-rw-r--r--compiler/utils/Digraph.lhs7
1 files changed, 7 insertions, 0 deletions
diff --git a/compiler/utils/Digraph.lhs b/compiler/utils/Digraph.lhs
index c5c9b578a2..f4f2b7e366 100644
--- a/compiler/utils/Digraph.lhs
+++ b/compiler/utils/Digraph.lhs
@@ -3,6 +3,13 @@
%
\begin{code}
+{-# OPTIONS_GHC -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/WorkingConventions#Warnings
+-- for details
+
module Digraph(
-- At present the only one with a "nice" external interface