--- Wnn/jutil/wnntouch.c.orig
+++ Wnn/jutil/wnntouch.c
@@ -53,6 +53,8 @@ static char *rcs_id = "$Id: wnntouch.c,v 1.3 1992/09/2
   */
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
 #include "jslib.h"
 #include "commonhd.h"
 
@@ -90,7 +92,7 @@ usage()
   exit(1);
 }
 
-void
+int
 main(argc, argv)
 int argc;
 char **argv;
