[Bug libstdc++/93034] variant not constexpr in c++17 mode

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93034

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
C++17 support in GCC 7.x is experimental and incomplete.

Following the release of GCC 7.5 the gcc-7 branch is now closed. Even if the
changes to std::variant were possible to backport from later releases, we
aren't going to make a GCC 7.6 release now anyway.