add prototype

diff --git a/ext/standard/parsedate.y b/ext/standard/parsedate.y
index 0f43fb4d36985d6d571c6f810b5bf012f6fb74f1..b98d5c8981b3be6fc03d879d6baf0e9f5802f557 100644 (file)
--- a/ext/standard/parsedate.y
+++ b/ext/standard/parsedate.y
@@ -148,6 +148,7 @@ typedef union _date_ll {
 #define YYSTYPE date_ll
 #define YYLTYPE void
 
+static int yylex (YYSTYPE *lvalp, void *parm);
 %}
 
 /* This grammar has 22 shift/reduce conflicts. */