#ifndef _MACHINE_SIMPLE_LOCK_H_
#define _MACHINE_SIMPLE_LOCK_H_
-#if defined (__ppc__)
-#include "ppc/simple_lock.h"
-#elif defined (__i386__)
+#if defined (__i386__) || defined (__x86_64__)
#include "i386/simple_lock.h"
-#elif defined (__arm__)
+#elif defined (__arm__) || defined (__arm64__)
#include "arm/simple_lock.h"
#else
#error architecture not supported