[Bug libstdc++/81797] gcc 7.1.0 fails to build on macOS 10.13 (High Sierra):

[jens4303 at me dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797

--- Comment #57 from Jens-S. Vöckler <jens4303 at me dot com> ---
(In reply to Francois-Xavier Coudert from comment #56)
> I would advise to keep it simple.

Agreed: Simple is better.