c->async = ZOOM_options_get_bool(c->options, "async", 0);
yaz_log(log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
c->async = ZOOM_options_get_bool(c->options, "async", 0);
yaz_log(log_details, "%p ZOOM_connection_connect async=%d", c, c->async);