Having multple kernel sources

[Eirik Nygaard <eirikn@xxxxxxxxxxxx>]

This patch lets you set a KERNEL_SOURCE variable in /etc/make.conf or on the
command line and the the kernel source you have specified will be build.

The kernel directory you specify must exist inside your src directory. It
defaults to KERNEL_SOURCE=sys/ if nothing else is specified.

I would just like to know what you people think, is it even needed?

http://leaf.dragonflybsd.org/~eirikn/Makefile.inc1-multiplesys.patch

-- 
Eirik Nygaard