gtkmm needs to be bumped to 2.2.10 (simple bump) net-analyser/gnome-* needs to be masked ~ppc gnome-base/gnome-keyring needs to be masked ~ppc epiphany needs to be bumped to 1.2.1 (simple bump)
PPC specific bug: had to remove the gnu-asm patch line from the ebuild. No idea about the runtime behaviour of gstreamer, but it compiles ok without the patch.
metacity-2.8.0 wants to patch screen.c but patch can't be applied. metacity can be compiled fine without the patch
this one could be 2.6 headers related: gnome-applets fails to compile with apm use flag enabled. cannot find apm.h to include.
I should have committed every ppc related fix to gnome-2.6 please check twice, I could forget something
In stable