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

[dave.anglin at bell dot net via Gcc-bugs]

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

--- Comment #13 from dave.anglin at bell dot net ---
If you have a proposed patch, I'm willing to test.