[Bug libstdc++/59869] [C++11] std::weak_ptr is thread-unsafe when built with -fno-exceptions

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59869

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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          Component|c++                         |libstdc++

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
What do you mean by thread-unsafe?  I agree it aborts, but there are no race
conditions or undefined behaviour.

Isn't this PR 59656?