CONF_R_NO_SUCH_FILE
ERR_raise(ERR_LIB_CONF, CONF_R_NO_SUCH_FILE);
{ ERR_PACK(ERR_LIB_CONF, 0, CONF_R_NO_SUCH_FILE), "no such file" },
if ((flags & CONF_MFLAGS_IGNORE_MISSING_FILE) && (ERR_GET_REASON(ERR_peek_last_error()) == CONF_R_NO_SUCH_FILE)) {