$NetBSD: patch-configure,v 1.1 2017/05/24 20:35:12 adam Exp $

Support net/if_tap.h

--- configure.orig	2017-05-11 00:51:16.000000000 +0000
+++ configure
@@ -14419,6 +14419,7 @@ for ac_header in  \
 	sys/mman.h sys/file.h sys/wait.h \
 	unistd.h signal.h libgen.h stropts.h \
 	syslog.h pwd.h grp.h \
+	net/if_tap.h \
 	sys/sockio.h sys/uio.h linux/sockios.h \
 	linux/types.h sys/poll.h sys/epoll.h err.h \
 
