[Bug libstdc++/64638] [5 Regression] Build failure with recent futex changes in libstdc++, likely all non-gthreads targets

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64638

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #5)
> It should be fixed now, but I'll leave this open until someone confirms the
> build works again.

Fixed for cris-elf, for example at r219800.
I see a conversation that other targets may have different experiences, but
I'll let them deal with that, suggesting to "take the lock" and either
re-opening and (hopefully in due time also) re-closing this PR, or a new one.