[libvirt] compile fail on FreeBSD

This failure on FreeBSD 8.2 popped up this week, and I suspect Dan's virnetdev refactoring, but haven't had time to further investigate and fix it: util/virnetdev.c: In function 'virNetDevExists': util/virnetdev.c:93: error: storage size of 'ifr' isn't known util/virnetdev.c:95: warning: implicit declaration of function 'virNetDevSetupControl' and so on. Probably some conditional compilation going wrong when on a non-Linux machine. -- Eric Blake eblake(a)redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org