$NetBSD: patch-ah,v 1.2 2004/09/08 12:14:59 wiz Exp $

--- lib/Enum.h.orig	2002-08-10 20:47:05.000000000 +0200
+++ lib/Enum.h
@@ -28,6 +28,7 @@
 #endif
 
 #include <plpintl.h>
+#include <assert.h>
 
 #include <map>
 #include <string>