... in particular so that warnings on exit in the debug build on Windows are
suppressed.
Maybe it's not important to suppress them. Or maybe they suggest all is not
correct in the MSVC implementation of this C++17 feature?
... Fixing many conditional operators with explicit construction of wxString
instead of simple string literals;
And fixing allocation of more strictly aligned structures on Mac, without need
for 10.14 as the minimum SDK, by means of some class-specific operators new
and delete.
