--- src/io.h.orig	Mon Mar  5 23:38:04 2001
+++ src/io.h	Mon Mar  5 23:38:04 2001
@@ -15,6 +15,8 @@
  * This file is covered by the GNU General Public License
  */
 
+#include <sys/types.h>
+
 
 /* read n bytes from network socket */
 int readn(int, char *, int);