A small ports policy change with respect to automake

[Marc Espie <espie@nerim.net>]

Now that we effectively disable automake runtime support, it's
probably time to revisit an explicit ports policy: we should
ask for Makefile.am patches along with Makefile.in patches from
maintainers (in general), so that the enlightened user can play
with the port some more... this will probably include a few tweaks
to `make update-patches' to inform the porter that there were some
Makefile.am/configure.in files that were not updated.


One other issue that is coming to light slowly, is that we need
to document the way `development' packages can be used from outside
of the ports tree (I'm thinking of qt specifically), when there are
specific configure options or env variables that will need to apply.

I also want a new automake version in after 3.1, so that both an old
and a newer version are present. With the new ${WRKDIR}/bin directory,
this should be trivial to get both on the same machine at the same time.

Comments ?