Fix unused-variable warning when building with threads disabled

diff --git a/bufferevent-internal.h b/bufferevent-internal.h
index 17737bfce58f77fa3f9ffe26fa568748b6e797e7..349143662b514bc5952a5b8f0a66fbbb2de6d2ff 100644 (file)
--- a/bufferevent-internal.h
+++ b/bufferevent-internal.h
@@ -352,6 +352,10 @@ int _bufferevent_generic_adj_timeouts(struct bufferevent *bev);
  * bufferevent_private. */
 #define BEV_UPCAST(b) EVUTIL_UPCAST((b), struct bufferevent_private, bev)
 
+#ifdef _EVENT_DISABLE_THREAD_SUPPORT
+#define BEV_LOCK(b) _EVUTIL_NIL_STMT
+#define BEV_UNLOCK(b) _EVUTIL_NIL_STMT
+#else
 /** Internal: Grab the lock (if any) on a bufferevent */
 #define BEV_LOCK(b) do {                                               \
                struct bufferevent_private *locking =  BEV_UPCAST(b);   \
@@ -363,6 +367,8 @@ int _bufferevent_generic_adj_timeouts(struct bufferevent *bev);
                struct bufferevent_private *locking =  BEV_UPCAST(b);   \
                EVLOCK_UNLOCK(locking->lock, 0);                        \
        } while (0)
+#endif
+
 
 /* ==== For rate-limiting. */