[Bug c++/53628] [C++11][DR 712] Compiler requires definition of static member constants when not odr-used

[daniel.kruegler at googlemail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53628

--- Comment #5 from Daniel Krügler <daniel.kruegler at googlemail dot com> ---
(In reply to Paolo Carlini from comment #4)
> This works in the released 4.8.0.

Thanks, I agree. Confirmed to work for gcc 4.8.1, 4.8.2, 4.9.0, 4.9.1, 4.9.2,
and HEAD 5.0.0 20150323 (experimental).