[Bug c++/81279] variadic template regression : compiles without error under 5.4.0 , 6.3.0 with error under 7.1.0

[jason.vas.dias at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81279

--- Comment #5 from Jason Vas Dias <jason.vas.dias at gmail dot com> ---
Wow! Problem SOLVED! Need a different pair of eyes sometimes ...
But I can't find where this is flagged in gcc 7.1.0  NEWS or ReleaseNotes .
It is a major change of behavior WRT to Variadic Macros, IMHO .

On 02/07/2017, d25fe0be at outlook dot com <gcc-bugzilla@gcc.gnu.org> wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81279
>
> --- Comment #4 from d25fe0be@ <d25fe0be at outlook dot com> ---
> '_t::_call' is a dependent name, adding 'template' before '_call' fixes the
> compilation error.
>
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