do yy_flex_debug prefix for both C++ and C

1 files changed, 2 insertions, 0 deletions

diff --git a/main.c b/main.c
index 97f5064..aee483c 100644
--- a/main.c
+++ b/main.c
@@ -310,6 +310,8 @@ void check_options()
 		if ( do_yywrap )
 			GEN_PREFIX( "wrap" );
 
+		GEN_PREFIX( "_flex_debug" );
+
 		outn( "" );
 		}