emerge --newuse world fails and the output i get is the following: >>> --newuse implies --update... adding --update to options. Calculating world dependencies - emerge: there are no ebuilds to satisfy ">=sys-devel/libperl-5.8.8-r1". (dependency required by "dev-lang/perl-5.8.8-r2" [ebuild]) !!! Problem resolving dependencies for app-misc/mc !!! Depgraph creation failed.
sys-devel/libperl-5.8.8-r1 is definitely still there, emerge --sync again w/ a different mirror please.