SCM_PORT_CUROUT  3516 src/extlib.c    SCM_RESULT = (Scm_WithPort(&port, thunk, SCM_PORT_CUROUT, FALSE));
SCM_PORT_CUROUT  1297 src/port.c         if (p->mask & SCM_PORT_CUROUT) {
SCM_PORT_CUROUT  1321 src/port.c         if (mask & SCM_PORT_CUROUT) {