Fix recursive superclasses (again). Fixes Trac #4809.

[ghc-hetmet.git] / compiler / simplCore / Simplify.lhs

diff --git a/compiler/simplCore/Simplify.lhs b/compiler/simplCore/Simplify.lhs
index 59c8ae4..7222703 100644 (file)
--- a/compiler/simplCore/Simplify.lhs
+++ b/compiler/simplCore/Simplify.lhs
@@ -702,7 +702,7 @@ simplUnfolding :: SimplEnv-> TopLevelFlag
 simplUnfolding env _ _ _ _ (DFunUnfolding ar con ops)
   = return (DFunUnfolding ar con ops')
   where
-    ops' = map (substExpr (text "simplUnfolding") env) ops
+    ops' = map (fmap (substExpr (text "simplUnfolding") env)) ops
 
 simplUnfolding env top_lvl id _ _ 
     (CoreUnfolding { uf_tmpl = expr, uf_arity = arity