[ebuild R ] sys-apps/busybox-1.23.2 USE="ipv6 mdev* pam static -debug -livecd -make-symlinks -math -savedconfig (-selinux) -sep-usr -syslog (-systemd)" 0 kB
[blocks B ] <sys-apps/openrc-0.13 ("<sys-apps/openrc-0.13" is blocking sys-apps/busybox-1.23.2)

Total: 1 package (1 reinstall), Size of downloads: 0 kB
Conflict: 1 block (1 unsatisfied)

• Error: The above package list contains packages which cannot be
• installed at the same time on the same system.

(sys-apps/busybox-1.23.2::gentoo, ebuild scheduled for merge) pulled in by
sys-apps/busybox required by @system

(sys-apps/openrc-0.12.4-r4::gentoo, installed) pulled in by
sys-apps/openrc required by (virtual/service-manager-0::gentoo, installed)
sys-apps/openrc required by (virtual/baselayout-0::gentoo, installed)
>=sys-apps/openrc-0.12.4-r2 required by (sys-apps/kmod-19::gentoo, installed)
sys-apps/openrc required by @system
sys-apps/openrc required by (sys-apps/baselayout-2.2.0-r6::gentoo, installed)

For more information about Blocked Packages, please refer to the following
section of the Gentoo Linux x86 Handbook (architecture is irrelevant):

http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?full=1#blocked