src/Pure/Syntax/ast.ML
changeset 62819 d3ff367a16a0
parent 62663 bea354f6ff21
child 64556 851ae0e7b09c
--- a/src/Pure/Syntax/ast.ML	Sat Apr 02 20:33:34 2016 +0200
+++ b/src/Pure/Syntax/ast.ML	Sat Apr 02 21:10:07 2016 +0200
@@ -66,7 +66,7 @@
 fun pretty_rule (lhs, rhs) =
   Pretty.block [pretty_ast lhs, Pretty.str "  ->", Pretty.brk 2, pretty_ast rhs];
 
-val _ = PolyML.addPrettyPrinter (fn _ => fn _ => Pretty.to_polyml o pretty_ast);
+val _ = ML_system_pp (fn _ => fn _ => Pretty.to_polyml o pretty_ast);
 
 
 (* strip_positions *)