[Bug libstdc++/71684] Memory leak with std::mutex and std::lock_guard on freebsd

[nsz at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71684

nsz at gcc dot gnu.org changed:

           What    |Removed                     |Added
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                 CC|                            |nsz at gcc dot gnu.org

--- Comment #1 from nsz at gcc dot gnu.org ---
on a posix platform pthread_mutex_destroy should be called for a mutex if its
life time ends, so the ifdef logic seems wrong (the initializer does not make a
difference).