(base)->lock); \
} while (0)
#else /* _EVENT_DISABLE_THREAD_SUPPORT */
+
+/* No-op statement. */
+#define _EV_NIL_STMT ((void)0)
+
#define EVTHREAD_GET_ID() 1
-#define EVTHREAD_ALLOC_LOCK(lockvar)
-#define EVTHREAD_FREE_LOCK(lockvar)
+#define EVTHREAD_ALLOC_LOCK(lockvar) _EV_NIL_STMT
+#define EVTHREAD_FREE_LOCK(lockvar) _EV_NIL_STMT
+
+#define EVLOCK_LOCK(lockvar, mode) _EV_NIL_STMT
+#define EVLOCK_UNLOCK(lockvar, mode) _EV_NIL_STMT
+#define EVLOCK_LOCK2(lock1,lock2,mode1,mode2) _EV_NIL_STMT
+#define EVLOCK_UNLOCK2(lock1,lock2,mode1,mode2) _EV_NIL_STMT
+
+#define EVBASE_IN_THREAD(base) 1
+#define EVBASE_ACQUIRE_LOCK(base, mode, lock) _EV_NIL_STMT
+#define EVBASE_RELEASE_LOCK(base, mode, lock) _EV_NIL_STMT
+
+#undef _EV_NIL_STMT
-#define EVBASE_IN_THREAD() 1
-#define EVBASE_ACQUIRE_LOCK(base, mode, lock)
-#define EVBASE_RELEASE_LOCK(base, mode, lock)
#endif
#ifdef __cplusplus