As of systemd-236, sys-apps/systemd conflicts with sys-apps/openrc by default. See https://www.gentoo.org/support/news-items/2018-01-23-systemd-blocker.html. Because app-crypt/ekeyd depends directly on sys-apps/openrc, it causes conflicts with sys-apps/systemd using the default USE flags. This is easily fixed by replacing the RDEPEND with virtual/service-manager.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f2530bd9707c3ddd8e3dd26f248586e938aba29b commit f2530bd9707c3ddd8e3dd26f248586e938aba29b Author: Kristian Fiskerstrand <k_f@gentoo.org> AuthorDate: 2018-03-21 19:52:56 +0000 Commit: Kristian Fiskerstrand <k_f@gentoo.org> CommitDate: 2018-03-21 19:52:56 +0000 app-crypt/ekeyd: don't depend directly on openrc Closes: https://bugs.gentoo.org/649476 Package-Manager: Portage-2.3.24, Repoman-2.3.6 app-crypt/ekeyd/ekeyd-1.1.5-r1.ebuild | 164 ++++++++++++++++++++++++++++++++++ 1 file changed, 164 insertions(+)