See bug #497664 Reproducible: Always Created an ebuild for this bug as it has not progressed for a very long time.
Created attachment 372692 [details] Net-DNS-SEC-0.17.ebuild
opened a pull request for this module to the perl-experimental overlay https://github.com/gentoo-perl/perl-experimental/pull/19
*** This bug has been marked as a duplicate of bug 497664 ***