Please remove the EXTRA_EMAKE setting from the ebuild. It is not portable and portage will refuse it real soon. Thank you.
+ 06 Oct 2012; Pacho Ramos <pacho@gentoo.org> + -files/gconf-3.2.3-shutdown-crash.patch, -gconf-3.2.3-r1.ebuild, + -gconf-3.2.3.ebuild, gconf-2.32.4.ebuild: + Stop using EXTRA_EMAKE, bug #437342 by Michał Górny. Drop old. +