Nothing in kde-base/libkexiv2-4.10.5 links to lcms.
Thanks for reporting. Fixed in >=kde-base/libkexiv2-4.10.5. Please sync in some hours to get the change. + + 30 Jul 2013; Johannes Huber <johu@gentoo.org> libkexiv2-4.10.5.ebuild: + Drop not needed dep by Nikoli <nikoli@lavabit.com> wrt bug #478478. +