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.