>Then what'll happen when I install 'doc' of 'arc-5.21e' after
>installing 'core' of that? (or is it possible?) If we do this, we have
>to edit some under /var/log/arc-5.21e. These files and package
>database be dynamic. It seems very confusing to me, at least beyond my
>imagination. ;-)

	i assumed you can't install arc-5.21e (doc) when you already have
	arc-5.21e (core).   you need to pkg_delete then pkg_add.
	(but it is under my imagination so not sure about takemura-san's idea)

itojun