Created attachment 385850 [details] build.log gnome-extra/evolution-data-server-3.12.6 fails to build because the command gdbus-codegen is not found. Installing dev-util/gdbus-codegen solves the problem.
Created attachment 385852 [details] emerge --info
+ 02 Oct 2014; Pacho Ramos <pacho@gentoo.org> + evolution-data-server-3.12.6.ebuild: + Needs gdbus-codegen (#524168 by Marc Vinyals) +