Решил обновиться - не могу разрулить:
после revdep-rebuild:
!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:
kde-base/kdelibs:4
(kde-base/kdelibs-4.7.0-r1::gentoo, ebuild scheduled for merge) pulled in by
>=kde-base/kdelibs-4.7.0:4[aqua=,semantic-desktop] required by (kde-base/nepomuk-4.7.0::gentoo, ebuild scheduled for merge)
(kde-base/kdelibs-4.7.0-r1::gentoo, installed) pulled in by
>=kde-base/kdelibs-4.7.0:4[aqua=,semantic-desktop=] required by (kde-base/plasma-workspace-4.7.0::gentoo, ebuild scheduled for merge)
(and 1 more with the same problem)
It might be possible to solve this slot collision
by applying all of the following changes:
- kde-base/nepomuk-4.7.0 (Change USE: +aqua)
- kde-base/kgpg-4.7.0 (Change USE: +aqua)
- kde-base/plasma-workspace-4.7.0 (Change USE: +semantic-desktop +aqua)
- kde-base/libplasmaclock-4.7.0 (Change USE: +aqua)
- kde-base/kdelibs-4.7.0-r1 (Change USE: +aqua)
- kde-base/kuser-4.7.0 (Change USE: +aqua)
- kde-base/kdepimlibs-4.7.0 (Change USE: +aqua)
The following USE changes are necessary to proceed:
#required by kde-base/kgpg-4.7.0, required by kde-base/kgpg:4 (argument)
>=kde-base/kdepimlibs-4.7.0 semantic-desktop
NOTE: This --autounmask behavior can be disabled by setting
EMERGE_DEFAULT_OPTS="--autounmask=n" in make.conf.
Use --autounmask-write to write changes to config files (honoring CONFIG_PROTECT).
!!! All ebuilds that could satisfy ">=kde-base/kdepimlibs-4.7.0:4[aqua=,semantic-desktop]" have been masked.
!!! One of the following masked packages is required to complete your request:
- kde-base/kdepimlibs-4.7.0::gentoo (masked by: )
(dependency required by "kde-base/kdepim-runtime-4.7.0" [ebuild])
(dependency required by "kde-base/kdepim-runtime:4" [argument])
Менял уже кучу всего это последний вариант, насколько я понял все из-за gwenview и digikam. Gvenview снес, но digikam мне нужен. 
История показывает, что во всем новом обычно кроется какой-то подвох.
Классическая ошибка, которую совершают проектировщики
абсолютно надежных систем, - недооценка изобретательности клинических идиотов.
