# emerge -uD world Calculating world dependencies /
!!! All ebuilds that could satisfy "~dev-lang/perl-5.8.7" have been masked.
!!! One of the following masked packages is required to complete your request:
- dev-lang/perl-5.8.7-r2 (masked by: ~alpha keyword)
- dev-lang/perl-5.8.7-r3 (masked by: package.mask)
For more information, see MASKED PACKAGES section in the emerge man page or
refer to the Gentoo Handbook.
(dependency required by "virtual/perl-Test-Harness-2.48" [ebuild])
!!! Problem resolving dependencies for dev-perl/Class-MethodMaker
!!! Depgraph creation failed.