Ok, I tried to mount this read-only, and ran into build failures.  But I have
completely removed my src tree, re-sync'd, and re-mounted r/o.  This now works.
I am not sure which stale (.depend, or what have you) was causing this 
behavior.

Thanks for the hint, I will keep it r/o from here on out.

Jeff

> Yes, that is the exact command line I am using.  /usr/src is not r/o,
> however the seemingly inconsistent results is what confuses me.  I will try
> r/o and see what results.
> 
> > Umm..are these the only options you use? I just did an exact build using
> > those options on a r/o /usr/src tree and it all builds into the obj dir
> > correctly.
> > 
> > James
> > 
> > >
> > >I want to keep /usr/src clean, but on occasion I get .lo and .d files populated
> > >in the /usr/src/tools/*/ directories.  Is there a way to avoid this?
> > >
> > >I am using the following command line:
> > >
> > >./build.sh -O /q/build/obj -D /q/build/dest -R /q/build/release
> > >	-T /q/build/tools tools kernel=GENERIC
> > >
> > >/etc/mk.conf is empty.
> > >
>