emerge -pqv '=sys-libs/db-4.7.25_p4-r1::gentoo' Permission denied: '/var/lib/portage/world' Permission denied: '/var/lib/portage/world' [ebuild U ] sys-libs/db-4.7.25_p4-r1 [4.7.25_p4] USE="cxx java rpc -doc -examples -tcl -test"