# emerge --sync # emerge -Dpuv world These are the packages that would be merged, in order: Calculating world dependencies \ !!! All ebuilds that could satisfy ">=app-portage/gentoolkit-dev-0.2.6.6" have been masked. !!! One of the following masked packages is required to complete your request: - app-portage/gentoolkit-dev-0.2.6.6 (masked by: ~x86 keyword) For more information, see MASKED PACKAGES section in the emerge man page or refer to the Gentoo Handbook. (dependency required by "app-portage/overlay-utils-0.2-r1" [ebuild]) !!! Problem resolving dependencies for app-portage/overlay-utils !!! Depgraph creation failed. # equery list overlay-utils [ Searching for package 'overlay' in all categories among: ] * installed packages [I--] [ ~] app-portage/overlay-utils-0.2 (0)
http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=2&chap=1#doc_chap4 ~arch package depending on ~arch package is by no means a bug. (Not to mention that app-portage/overlay-utils comes from an overlay, and not official tree).