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-rw-r--r--stdlib/parsing.ml3
1 files changed, 3 insertions, 0 deletions
diff --git a/stdlib/parsing.ml b/stdlib/parsing.ml
index 8df008c5c..2b4d93ddb 100644
--- a/stdlib/parsing.ml
+++ b/stdlib/parsing.ml
@@ -78,6 +78,9 @@ external parse_engine :
parse_tables -> parser_env -> parser_input -> Obj.t -> parser_output
= "caml_parse_engine"
+external set_trace: bool -> bool
+ = "caml_set_parser_trace"
+
let env =
{ s_stack = Array.create 100 0;
v_stack = Array.create 100 (Obj.repr ());