How to maintain emacs-snapshot-ized packages?
It seems that many Emacs Lisp packages are built for Emacs 21 only,
and they require tweaks to work with emacs-snapshot.
I'm looking for a convenient way to maintain such packages for
This would mean, I guess, to fetch the source package, then tweak it,
then build it. So I'm looking for something which allows me to
auto-tweak it after fetching and before building. Something that is
approximately as easy as doing "apt-get update; apt-get dist-upgrade".
PS: I'm already a happy user of the pre-tweaked auctex package from
people.debian.org/~salve/apt, but I would be interested in Gnus
(from CVS) and the Debian utilities; not sure which others.