[Bug libstdc++/121496] [14/15/16 Regression] 'class std::timed_mutex' has no member named '_M_clocklock' with -fsanitize=thread

[ted at lyncon dot se via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121496

--- Comment #4 from Ted Lyngmo <ted at lyncon dot se> ---
@JonathanWakely - Aha, thanks for clearing that up!