Use futex-based synchronization on Apple platforms#122408

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joboet wants to merge 2 commits intorust-lang:masterfrom joboet:apple_futex

+203-139

Commits on Feb 3, 2025

std: allow weak in item position on Apple platforms
joboet
committed

Commits on Feb 5, 2025

std: use futex for everything but Mutex on Apple platforms
joboet
committed