and x11-libs/gtk+extra as a depend
Tested on x86 once I unmasked gtk+extra-2.1.2 all good here. x11-libs/gtk+extra-2.1.2 (masked by: ~x86 keyword) (dependency required by "dev-embedded/gpsim-0.24.0-r1" [ebuild]) (dependency required by "=dev-embedded/gpsim-0.24.0-r1" [argument])
amd64 done
x86 stable, thanks David
ppc/ppc64 stable, closing