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src/Pure/Concurrent/lazy.ML
changeset 62819 d3ff367a16a0
parent 62663 bea354f6ff21
child 62823 751bcf0473a7 
--- a/src/Pure/Concurrent/lazy.ML	Sat Apr 02 20:33:34 2016 +0200
+++ b/src/Pure/Concurrent/lazy.ML	Sat Apr 02 21:10:07 2016 +0200
@@ -103,7 +103,7 @@
 (* toplevel pretty printing *)
 
 val _ =
-  PolyML.addPrettyPrinter (fn depth => fn pretty => fn x =>
+  ML_system_pp (fn depth => fn pretty => fn x =>
     (case peek x of
       NONE => PolyML.PrettyString "<lazy>"
     | SOME (Exn.Exn _) => PolyML.PrettyString "<failed>"
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