[Bug libstdc++/96817] __cxa_guard_acquire unsafe against dynamically loaded pthread

[yshuiv7 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96817

--- Comment #16 from Yuxuan Shui <yshuiv7 at gmail dot com> ---
But yeah, that's definitely a bug in itself as well.