_cgo_preinit_init() {
	 runtime_init_wait = CreateEvent(NULL, TRUE, FALSE, NULL);
	 if (runtime_init_wait == NULL) {
		fprintf(stderr, "runtime: failed to create runtime initialization wait event.\n");
		abort();
	 }

	 InitializeCriticalSection(&runtime_init_cs);
}

// Make sure that the preinit sequence has run.
void
_cgo_maybe_run_preinit() {
	 if (!InterlockedExchangeAdd(&runtime_init_once_done, 0)) {