sys-fs/cryptsetup is slotted so the dependency should include a slot operator.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4e59ba4cdd56f927e46dd29b10ed50d2fe01564f commit 4e59ba4cdd56f927e46dd29b10ed50d2fe01564f Author: Lars Wendler <polynomial-c@gentoo.org> AuthorDate: 2017-12-18 23:52:50 +0000 Commit: Lars Wendler <polynomial-c@gentoo.org> CommitDate: 2017-12-19 00:36:50 +0000 sys-libs/libblockdev: Added sub-slot dep for sys-fs/cryptsetup. Closes: https://bugs.gentoo.org/641630 Package-Manager: Portage-2.3.19, Repoman-2.3.6 sys-libs/libblockdev/libblockdev-2.14-r1.ebuild | 2 +- sys-libs/libblockdev/libblockdev-2.15-r1.ebuild | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)