Apple targets have historically being problematic, xcode 4.6 would miscompile the intrinsic.
*/
-#if defined (__arm__) && defined (HAVE_ARMV7)
-#define HAVE_64BIT_CMPXCHG_FALLBACK /* See atomic.c in this directory. */
-#endif
-
/* On Windows, we always use the functions provided by the Windows API. */
#if defined(__WIN32__) || defined(_WIN32)