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-rw-r--r--byterun/startup.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/byterun/startup.c b/byterun/startup.c
index 852c845ac..b866c04a2 100644
--- a/byterun/startup.c
+++ b/byterun/startup.c
@@ -178,6 +178,10 @@ static int parse_command_line(char **argv)
case 't':
trace_flag = 1;
break;
+ case 'P':
+ { extern int parser_trace;
+ parser_trace = 1;
+ break; }
#endif
case 'v':
verbose_init = 1+4+8+16+32;