1 files changed, 1 insertions, 0 deletions
diff --git a/flexdef.h b/flexdef.h
index 562af3a..7b96c6f 100644
--- a/flexdef.h
+++ b/flexdef.h
@@ -852,6 +852,7 @@ void line_pinpoint PROTO(( char[], int ));
 /* Report a formatted syntax error. */
 extern void format_synerr PROTO((char [], char[]));
 extern void synerr PROTO((char []));	/* report a syntax error */
+extern void format_warn PROTO((char [], char[]));
 extern void warn PROTO((char []));	/* report a warning */
 extern int yyparse PROTO((void));	/* the YACC parser */