$NetBSD: patch-ae,v 1.2 2007/04/27 19:45:01 christos Exp $

--- configure.ac.orig	2006-01-12 06:18:27.000000000 -0500
+++ configure.ac	2007-04-27 11:31:50.000000000 -0400
@@ -33,6 +33,12 @@
 freebsd*)
 	opsys=freebsd
 	AC_DEFINE([FREEBSD], 1, [Define for the FreeBSD operating system.])
+	AC_DEFINE([ALLBSD], 1, [Define for the BSD-like operating system.])
+	;;
+netbsd*)
+	opsys=netbsd
+	AC_DEFINE([NETBSD], 1, [Define for the NetBSD operating system.])
+	AC_DEFINE([ALLBSD], 1, [Define for the BSD-like operating system.])
 	;;
 *)
 	AC_MSG_RESULT([NO!])
@@ -119,6 +125,8 @@
 AM_CONDITIONAL([SUNOS4], [test x$opsys = xsunos4])
 AM_CONDITIONAL([SVR4], [test x$opsys = xsvr4])
 AM_CONDITIONAL([FREEBSD], [test x$opsys = xfreebsd])
+AM_CONDITIONAL([NETBSD], [test x$opsys = xnetbsd])
+AM_CONDITIONAL([ALLBSD], [test x$opsys = xnetbsd -o x$opsys = xfreebsd])
 
 AC_PROG_CC
 AC_GNU_SOURCE
