Fix BEV_LOCK/BEV_UNLOCK macros for EVENT__DISABLE_THREAD_SUPPORT

diff --git a/bufferevent-internal.h b/bufferevent-internal.h
index 3ad0acf0f0255d88fa744a5ee88f20163ad99782..8db48d12503613347cb35923269686055ad3d0a3 100644 (file)
--- a/bufferevent-internal.h
+++ b/bufferevent-internal.h
@@ -485,8 +485,8 @@ bufferevent_socket_set_conn_address_(struct bufferevent *bev, struct sockaddr *a
 #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_
+#define BEV_LOCK(b) (void)(b)
+#define BEV_UNLOCK(b) (void)(b)
 #else
 /** Internal: Grab the lock (if any) on a bufferevent */
 #define BEV_LOCK(b) do {                                               \