warning fix

src/sockmap.c

@@ -69,7 +69,7 @@ int sockmap(struct clientparam * param, int timeo){
  while (!stop&&!conf.timetoexit){
 	sasize = sizeof(struct sockaddr_in);
 	if(param->version < conf.version){
-		if (res = (*param->srv->authfunc)(param)) {return(res);}
+		if ((res = (*param->srv->authfunc)(param))) {return(res);}
 		param->paused = conf.paused;
 		param->version = conf.version;
 	}