https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55993
--- Comment #12 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to splinterofchaos from comment #11)
> I still get an error with 4.9 when using one of the less reduced cases,
> although not when using the test cases in that patch.
>
>
> #include <tuple>
> struct A {};
> constexpr auto t = std::get<0>( std::make_tuple( A(), A() ) );
This seems to be fixed on the trunk (GCC 5).
