$NetBSD$

--- md5.c.orig	1996-01-06 21:21:09.000000000 +0100
+++ md5.c
@@ -15,6 +15,7 @@
  * will fill a supplied 16-byte array with the digest.
  */
 #include <string.h>		/* for memcpy() */
+#include "usuals.h"
 #include "md5.h"
 
 #ifndef HIGHFIRST
