It appears that SLOT="5" of net-libs/telepathy-logger-qt is not compatible with net-im/ktp-common-internals-0.9.0 and net-im/ktp-text-ui-0.9.0 — I do not get any logs in Telepathy/KDE (no menu entry to access the logs and not backlog in the text UI). Thus I assume they should depend on net-libs/telepathy-logger-qt:0.
After downgrading to net-libs/telepathy-logger-qt-0.8.0:0, chat log in the text-ui and the other log work again.
P.S: I also rebuilt net-im/ktp-common-internals-0.9.0 and net-im/ktp-text-ui-0.9.0.
Thanks, fixed in CVS. + 11 Apr 2015; Michael Palimaka <kensington@gentoo.org> + ktp-common-internals-0.9.0.ebuild: + Pin net-libs/telepathy-logger-qt dependency to SLOT 0 wrt bug #546270. + 11 Apr 2015; Michael Palimaka <kensington@gentoo.org> + ktp-text-ui-0.9.0.ebuild: + Pin net-libs/telepathy-logger-qt dependency to SLOT 0 wrt bug #546270.