accomdate this change, stop using device nodes in /usr/compat/linux/dev
and instead rely on the linuxalator passing through requests to the
real /dev. (This second change also applies to 4.x).
Some apps such as VMware for Linux would be happy with it.
The code was originally written by Vladimir N. Silyaev.
Note: It _includes_ Linux ioctl support, but basically it's
FreeBSD native stuff. I'm importing this into emulators
category for convevience' sake. Check it out.