[PATCH modular] Clone if there are no source files with modfile.

[Alan Coopersmith]

No comment on that patch, but I do want to express my appreciation for
--clone - it made it much easier to get a new full build set going in
the new virtualbox instance I set up for testing Linux builds before
pushing out the katamari release bits.

-- 
	-Alan Coopersmith-        alan.coopersmith at oracle.com
	 Oracle Solaris Platform Engineering: X Window System