Working on a amd64 machine, I did emerge -D -uav world and got the following response:
!!! Multiple package instances within a single package slot have been pulled !!! into the dependency graph, resulting in a slot conflict: dev-lang/python:2.5 ('installed', '/', 'dev-lang/python-2.5.2-r7', 'nomerge') pulled in by dev-lang/python required by ('installed', '/', 'dev-libs/libxslt-1.1.24-r1', 'nomerge') >=dev-lang/python-2.2 required by ('installed', '/', 'app-pda/libopensync-0.22', 'nomerge') dev-lang/python required by world (and 19 more) ('ebuild', '/', 'dev-lang/python-2.5.2-r7', 'merge') pulled in by >=dev-lang/python-2.3[-build,xml] required by ('ebuild', '/', 'app-text/iso-codes-3.6', 'merge') dev-lang/python required by world It may be possible to solve this problem by using package.mask to prevent one of those packages from being selected. However, it is also possible that conflicting dependencies exist such that they are impossible to satisfy simultaneously. If such a conflict exists in the dependencies of two different packages, then those packages can not be installed simultaneously. For more information, see MASKED PACKAGES section in the emerge man page or refer to the Gentoo Handbook. emerge: there are no ebuilds built with USE flags to satisfy ">=app-text/poppler-bindings-0.8[gtk,cairo]". !!! One of the following packages is required to complete your request: - app-text/poppler-bindings-0.10.4 (Change USE: +cairo) (dependency required by "app-text/evince-2.24.2" [ebuild]) (dependency required by "world" [argument]) I would be grateful for suggestions as to (1) which package if any should be masked, and (2) what to do about app-text/poppler-bindings. John -- John P. Burkett Department of Economics University of Rhode Island Kingston, RI 02881-0808 USA phone (401) 874-9195