bpo-37415: Fix stdatomic.h header check for ICC compiler (GH-16717)
Fix stdatomic.h header check for ICC compiler: the ICC implementation
lacks atomic_uintptr_t type which is needed by Python.
Test:
* atomic_int and atomic_uintptr_t types
* atomic_load_explicit() and atomic_store_explicit()
* memory_order_relaxed and memory_order_seq_cst constants
But don't test ATOMIC_VAR_INIT(): it's not used in Python.
(cherry picked from commit 028f7349a0f6eaea0fec31becb587fcdf6e3cb28)
Co-authored-by: Victor Stinner <vstinner@python.org>
4 files changed
