$NetBSD: patch-ag,v 1.3 2004/05/15 21:00:58 itojun Exp $

--- lib/isc/unix/os.c.orig	2001-08-16 08:19:58.000000000 +0200
+++ lib/isc/unix/os.c	2004-04-01 22:22:25.000000000 +0200
@@ -56,6 +56,9 @@
 
 #if defined(HAVE_SYS_SYSCTL_H) && defined(HAVE_SYSCTLBYNAME)
 #include <sys/types.h>
+#ifdef __NetBSD__
+#include <sys/param.h>
+#endif
 #include <sys/sysctl.h>
 
 static int