--- Wnn/uum/select_ele.c.orig
+++ Wnn/uum/select_ele.c
@@ -53,6 +53,7 @@
 #define DD_MAX 512
 
 #include <stdio.h>
+#include <string.h>
 #include "commonhd.h"
 #include "sdefine.h"
 #include "sheader.h"
