Try fixing __sync atomics

Author: morrisonlevi

Zend/zend_atomic.h

@@ -42,7 +42,7 @@
  * and alignment purposes.
  */
 
-#if ZEND_WIN32
+#if ZEND_WIN32 || HAVE_SYNC_ATOMICS
 typedef struct zend_atomic_bool_s {
 	volatile char value;
 } zend_atomic_bool;