Minor fixes to PR 2955

lib/ClickHouse_Server.cpp

@@ -1311,6 +1311,7 @@ __exit_child_mysql:
 
 static void * sqlite3server_main_loop(void *arg)
 {
+	int rc;
 	int i;
 	int version=0;
 	struct sockaddr_in addr;

lib/ProxySQL_Admin.cpp

@@ -10089,6 +10089,7 @@ void ProxySQL_Admin::save_mysql_ldap_mapping_runtime_to_database(bool _runtime)
 
 #ifdef PROXYSQLCLICKHOUSE
 void ProxySQL_Admin::save_clickhouse_users_runtime_to_database(bool _runtime) {
+	int rc;
 	char *query=NULL;
 	if (_runtime) {
 		query=(char *)"DELETE FROM main.runtime_clickhouse_users";