gnumake module deps ...

[Michael Meeks]

I had a quick hack at the:

	make module-deps

	thing - and wrote the world's worst performing algorithm (in perl) to
process it into a graphviz graph.

	Most of the time is spent eliding redundant dependencies; by which I
mean if 'foo' depends on 'vcl' and 'sal' - we should elide 'sal' which
is implied by 'vcl' - to improve the graph.

	Anyhow - that produces one of the nicer stacks of deps I've seen in
recent time [ I also elide all the unit-test and random executable rules
to avoid horizontal bloat ]:

	http://users.freedesktop.org/~michael/module-deps.png
	http://users.freedesktop.org/~michael/module-deps.graphviz

	And - the result even looks slightly sane which is nice [ and is
auto-generated with a neat idea of Bjoern's from make itself ]. Of
course, improvement for irredeemably bad graph algorithms appreciated;
master has the latest.

	HTH,

		Michael.

-- 
michael.meeks at suse.com  <><, Pseudo Engineer, itinerant idiot