thesource@localhost ~ $ emerge -vp --update --newuse --deep world 

These are the packages that would be merged, in order:

Calculating world dependencies \
emerge: there are no ebuilds to satisfy "~x11-libs/compiz-bcop-9999".
(dependency required by "x11-plugins/compiz-fusion-plugins-threed-9999" [installed])



!!! Problem resolving dependencies for x11-plugins/compiz-fusion-plugins-threed
!!! Depgraph creation failed.
thesource@localhost ~ $