--- include/ntp_md5.h_old	2004-05-01 04:04:30.248918320 +0900
+++ include/ntp_md5.h_old	2004-05-01 04:04:43.764863584 +0900
@@ -4,6 +4,7 @@ 
 
 #ifdef HAVE_MD5_H
 # include <md5.h>
+# include <sys/types.h>
 #else
 # include "rsa_md5.h"
 #endif