$OpenBSD: patch-Usage_cc,v 1.1 2017/04/23 22:18:32 sthen Exp $
--- Usage.cc.orig	Sun Apr 23 23:03:51 2017
+++ Usage.cc	Sun Apr 23 23:04:23 2017
@@ -17,7 +17,9 @@
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
 
-#include <iostream.h>
+#include <iostream>
+
+using namespace std;
 
 #include "Usage.h"
 
