See bug #384779 Reproducible: Always
I can confirm the bug
Looks like clutter-gst needs the following in src_prepare(): sed -e 's/-D.*_DISABLE_DEPRECATED//g' -i clutter-gst/Makefile.* || die (This has been fixed in the clutter-gst-1.4.2 ebuild the gnome overlay.)
+*clutter-gst-1.4.2 (15 Oct 2011) + + 15 Oct 2011; Pacho Ramos <pacho@gentoo.org> -clutter-gst-1.3.12.ebuild, + -clutter-gst-1.3.14.ebuild, +clutter-gst-1.4.2.ebuild: + Version bump, remove development versions. +