Gentoo has a license masking feature described at [1]. You specify in make.conf a list of licenses that you like and do not like, and it will not install things

Gentoo has a license masking feature described at [1]. You specify in make.conf a list of licenses that you like and do not like, and it will not install things that do not match that mask. 1: http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=2&chap=1 http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=...