cppcheck 1.79 was released: https://sourceforge.net/p/cppcheck/news/2017/05/cppcheck-179/ please bump Copy of the 1.78 ebuild did work for me again, as for https://bugs.gentoo.org/show_bug.cgi?id=614562 Tested with my Gentoo Prefix installation.
thank you for the report.
commit 0f8a67adeb4dfbef85e489bc04fc17d87beaefa6 Author: Michael Weber <xmw@gentoo.org> Date: Tue May 16 22:33:06 2017 +0200 dev-util/cppcheck: Version bump (bug 618650, thanks Jens Lindenmeier). Package-Manager: Portage-2.3.5, Repoman-2.3.2 dev-util/cppcheck/Manifest dev-util/cppcheck/cppcheck-1.79.ebuild