autoconf update

[perryh at pluto.rain.com]

jhell <jhell at DataIX.net> wrote:

> ... Mercurial being the distributed version control that it is
> allows you to clone, make the changes you need to the clone test it
> thoroughly and then either push or pull them to the main tree ...

At the risk of starting the VCS variant of the vi vs emacs wars :)
why Mercurial (rather than, say, GIT or SVK)?

And no, I have nothing against Mercurial.  I don't know _any_
distributed VCS well enough to have an opinion of which would
be best suited.