Gentoo's Bugzilla –
Attachment 396666 Details for
Bug 540338x11-drivers/ati-drivers-? - amdcccle (amdcccle:7623): Gtk-ERROR **: GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported [1] 7623 trace trap (core dumped) amdcccle