I have been using build.sh for some time now with mixed results.  Perhaps
someone can tell me where I am going wrong.

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?

Second, the kernel compilation.  Sometimes I get
/q/build/obj/sys/arch/i386/compile/GENERIC/netbsd , but sometimes 
/usr/src/sys/arch/i386/compile/GENERIC/netbsd.

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.

I apologize that this is newbie-ish but I figure as it is build.sh this is the
best place to ask.

Insight would be appreciated.

Thank you,
Jeff