--- a/src/Pure/Interface/proof_general.ML Tue Dec 04 18:10:49 2001 +0100
+++ b/src/Pure/Interface/proof_general.ML Tue Dec 04 19:53:55 2001 +0100
@@ -100,7 +100,7 @@
fun setup_messages () =
(priority_fn := decorate_lines (oct_char "360") (oct_char "361") "";
-(* tracing_fn := decorate_lines (oct_char "360") (oct_char "361") (oct_char "375"); *)
+ tracing_fn := decorate_lines (oct_char "360") (oct_char "361") (oct_char "375");
warning_fn := (decorate_lines (oct_char "362") (oct_char "363") "### ");
error_fn := (decorate_lines (oct_char "364") (oct_char "365") "*** "));