[Bug libstdc++/59807] mutex misses destructor if non-function call initialization is used

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59807

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
If the target for this is only mingw-w64 then PR 57440 is a dup