gcovr 3.3 was released on 6.Aug.2016: https://github.com/gcovr/gcovr/releases please bump Reproducible: Always
to bump you simply have to rename the ebuild :)
commit 52e6f3072ba4f1c339cedd2539ff2e865e8f7d48 Author: Christoph Junghans <ottxor@gentoo.org> Date: Sat Sep 10 16:31:01 2016 -0600 dev-util/gcovr: version bump (bug #593032) Package-Manager: portage-2.2.28 Next time, if it is that easy do a pull-request on https://github.com/gentoo/gentoo.