I would like to port netgraph from FreeBSD 4.10 kernel to NetBSD-current. I know about only one effort to do this: http://mail-index.netbsd.org/tech-net/2001/08/17/0000.html But it was ported from FreeBSD 4.3 and is rather old. My idea is to port code from FreeBSD 4.10 with some macro from FreeBSD 5. Is this needed to be done?