Hi, there seems to be a bug in g++-6 [1] that results in this compile failure.
I think the only way to quell this bug at the moment is to force c++03, i.e. export DEB_CXXFLAGS_MAINT_APPEND = -std=c++03 in d/rules. Because this workaround exists I'm not adding #829604 as blocker now. Also I'd like to know th opinion of the gcc maintainers on whether this is really a bug, or a new c++ feature I'm not aware of. If #829604 is for real, I will open a whishlist bug instead that asks for removing -std=c++03 and and the according blocker. best, Gert [1] https://bugs.debian.org/829604
