Two very wanted features landed in Gentoo Linux portage tree.

--autounmask and --autounmask-write are two new parameters for portage that every user was dreaming of. It will even respect --ask flag! Here is what happens:

emerge --ask --autounmask-write pypy will ask you to unmask latest pypy version and to confirm configuration changes

will ask you to unmask latest pypy version and to confirm configuration changes emerge --autounmask-write pypy will just unmask needed packages without asking.

In either case, you have to confirm changes with dispatch-conf or similar tools. Happy Gentooing!