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Commit e78f34e8 authored by Simon Marlow's avatar Simon Marlow
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make this buildable with GHC 6.2.x

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Distribution/Compat/Map.hs
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......@@ -66,7 +66,8 @@ unions :: Ord k => [Map k a] -> Map k a
unions = foldl (flip plusFM) emptyFM
difference :: Ord k => Map k a -> Map k b -> Map k a
difference m1 m2 = delListFromFM m1 (elems m2)
difference m1 m2 = delListFromFM m1 (keys m2)
-- minusFM wasn't polymorphic enough in GHC 6.2.x
elems :: Map k a -> [a]
elems = eltsFM
......
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