Apache and Apache2 have existed on the same ebuild since I've been using Gentoo. The same should be true for xfce3 and xfce4. I remember reading on the Gentoo website that useing two packages for two different version numbers is the essence of a 'broken' package system, and I agree. Yet two ebuilds exist for two versions. This has resulted in confusion for several users of Gentoo, myself included. If need be, a new USE flag should be introduced. Reproducible: Always Steps to Reproduce:
closing thanks