> The UPDATE variable will reduce the number of things that get recompiled
> and should improve build times no end.  Because of UPDATE, you need
> the separate "make cleandir" - hmm, maybe we should have two variables
> controlling update vs. cleandir behaviour...

I think I am already in the archives as saying that we should.

What I'd actually like is all the top-level stages of ``make build'' assigned
their own PHONY targets, and that list exported via ``make print-build-steps''
so that I can write a general system which "walks" through the various parts
of a ``make build'' in order. I've already got such a system which I use all
the time, but currently it has to know all about the src/Makefile that it is
driving. (I loathe make -k, so nobody send me private mail about that please)

With the above implementation, it is quite straightforward to support more
PHONY targets like ``build'' ``inc-build'' and whatever else we find we use
a lot.

Todd Whitesel
toddpw @ best.com