[Bug libstdc++/97485] std::call_once crashes at runtime on glibc if not linked to libpthread: terminate called after throwing an instance of 'std::system_error': what(): Unknown error -1

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97485

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Looks like a dup of PR 55394