diff --git a/src/third_party/compiler-rt/src/lib/builtins/atomic.c b/src/third_party/compiler-rt/src/lib/builtins/atomic.c
index aded25d9ba..6a58f9189d 100644
--- a/src/third_party/compiler-rt/src/lib/builtins/atomic.c
+++ b/src/third_party/compiler-rt/src/lib/builtins/atomic.c
@@ -102,8 +102,8 @@ __inline static void lock(Lock *l) { OSSpinLockLock(l); }
 static Lock locks[SPINLOCK_COUNT]; // initialized to OS_SPINLOCK_INIT which is 0
 
 #else
-_Static_assert(__atomic_always_lock_free(sizeof(uintptr_t), 0),
-               "Implementation assumes lock-free pointer-size cmpxchg");
+//_Static_assert(__atomic_always_lock_free(sizeof(uintptr_t), 0),
+//               "Implementation assumes lock-free pointer-size cmpxchg");
 typedef _Atomic(uintptr_t) Lock;
 /// Unlock a lock.  This is a release operation.
 __inline static void unlock(Lock *l) {