Request for help with Radius authentication using Poptop from Pkgsrc and NetBSD-4.0

["Dave Ellis" <dellis.qnx%gmail.com@localhost>]

Hello!

I'm setting up a PPTP VPN server under NetBSD-4.0 Stable (i386) using
poptop, but have run into problems trying to get radius authentication
to work.  

Is there any way under NetBSD to configure radius authentication and
pass assigned IPs to poptop from a Freeradius server other than using
the radius.so and radattr.so plugins from the ppp-2.4.3 package
referenced in /etc/ppp/options.pptpd?

Unfortunately ppp-2.4.3 doesn't build under NetBSD-4.0 (ppp is already
included in the OS) and I haven't had much luck trying to modify the
source to allow it to build, but then my C is pretty rusty so that's no
surprise.

Any help appreciated!

Dave