[Bug libstdc++/78968] conflict between gnu's __cxa_thread_atexit and LLVM's/FreeBSD's implementation

[h2+bugs at fsfe dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78968

--- Comment #12 from Hannes Hauswedell <h2+bugs at fsfe dot org> ---
Created attachment 40451
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40451&action=edit
intermediate for O3