Mac host doesn't define ART_USE_FUTEXES.

Change-Id: Ic2c23d267cfd56db58754f45154436a085eeaa78
diff --git a/runtime/base/mutex-inl.h b/runtime/base/mutex-inl.h
index 0b13e31..c310191 100644
--- a/runtime/base/mutex-inl.h
+++ b/runtime/base/mutex-inl.h
@@ -32,9 +32,10 @@
 #ifndef SYS_futex
 #define SYS_futex __NR_futex
 #endif
-#define CHECK_MUTEX_CALL(call, args) CHECK_PTHREAD_CALL(call, args, name_)
 #endif  // ART_USE_FUTEXES
 
+#define CHECK_MUTEX_CALL(call, args) CHECK_PTHREAD_CALL(call, args, name_)
+
 namespace art {
 
 #if ART_USE_FUTEXES