I just synced my local portage tree, and after issuing emerge -uDN @world command i got the following error: These are the packages that would be merged, in order: Calculating dependencies ... done! !!! Multiple package instances within a single package slot have been pulled !!! into the dependency graph, resulting in a slot conflict: x11-base/xorg-server:0 (x11-base/xorg-server-1.18.3:0/1.18.3::gentoo, ebuild scheduled for merge) pulled in by (no parents that aren't satisfied by other packages in this slot) (x11-base/xorg-server-1.18.2:0/1.18.2::gentoo, installed) pulled in by x11-base/xorg-server:0/1.18.2= required by (x11-drivers/xf86-input-synaptics-1.8.3:0/0::gentoo, installed) ^^^^^^^^^^ dev-libs/boost:0 (dev-libs/boost-1.60.0:0/1.60.0::gentoo, ebuild scheduled for merge) pulled in by (no parents that aren't satisfied by other packages in this slot) (dev-libs/boost-1.58.0-r1:0/1.58.0::gentoo, installed) pulled in by dev-libs/boost:0/1.58.0= required by (app-text/libwps-0.4.3:0/0::gentoo, installed) ^^^^^^^^^^ dev-util/boost-build:0 (dev-util/boost-build-1.60.0:0/0::gentoo, ebuild scheduled for merge) pulled in by (no parents that aren't satisfied by other packages in this slot) (dev-util/boost-build-1.58.0:0/0::gentoo, installed) pulled in by =dev-util/boost-build-1.58* required by (dev-libs/boost-1.58.0-r1:0/1.58.0::gentoo, installed) ^ ^^^^^ 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 to satisfy ">=dev-libs/icu-3.6:0/56.C++11=[abi_x86_32(-),abi_x86_64(-)]". (dependency required by "dev-libs/boost-1.58.0-r1::gentoo" [installed]) (dependency required by "app-text/libwps-0.4.3::gentoo" [installed]) (dependency required by "@selected" [set]) (dependency required by "@world" [argument]) When I masked boost-1.60, error changed to: emerge: there are no ebuilds to satisfy "dev-libs/icu:0/56.C++11=[abi_x86_32(-),abi_x86_64(-)]". (dependency required by "dev-qt/qtwebkit-4.8.7::gentoo" [installed])
if you individually accept keywords then it is your responsibility to keep them maintained.
And who said that I am maintaining anything on my own?
emerge: there are no ebuilds to satisfy ">=dev-libs/icu-3.6:0/56.C++11=[abi_x86_32(-),abi_x86_64(-)]". ^ that's the problem; I suspect you need to enable an abi useflag on icu