The init script(s) provided in FILESDIR for mail-filter/milter-regex has a license of GPL-2 but GPL-2 isn't within the LICENSE variable of the ebuild(s): files/milter-regex-init has license line: # Distributed under the terms of the GNU General Public License v2 ... and is used by the following ebuilds: milter-regex-1.7-r2.ebuild:LICENSE="BSD" milter-regex-1.8.ebuild:LICENSE="BSD" There are two options here -- either LICENSE in the ebuilds should be appended with GPL-2 to cover the init script, or the init script should be relicensed so that it is covered by current LICENSE (this one is probably the preferred resolution). See also bug 425702 .