[Bug libstdc++/99832] std::chrono::system_clock::to_time_t needs ABI tag for 32-bit time_t

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99832

--- Comment #15 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I suppose another way to resolve this would be to just mark that function
[[__gnu__::__always_inline__]].

That would require no config changes at all, we could do it unconditionally.

Or we could do:

      // Map to C API
#ifdef __USE_TIME64_REDIRECTS
      [[__gnu__::__always_inline__]]
#endif
      static std::time_t
      to_time_t(const time_point& __t) noexcept
      {
        return std::time_t(duration_cast<chrono::seconds>
                           (__t.time_since_epoch()).count());
      }