}
/*- End of function --------------------------------------------------------*/
-SPAN_DECLARE(void) fax_modems_hdlc_tx_frame(void *user_data, const uint8_t *msg, int len)
+SPAN_DECLARE_NONSTD(void) fax_modems_hdlc_tx_frame(void *user_data, const uint8_t *msg, int len)
{
fax_modems_state_t *s;
SPAN_DECLARE_NONSTD(int) fax_modems_v27ter_v21_rx_fillin(void *user_data, int len);
SPAN_DECLARE_NONSTD(int) fax_modems_v29_v21_rx_fillin(void *user_data, int len);
-SPAN_DECLARE(void) fax_modems_hdlc_tx_frame(void *user_data, const uint8_t *msg, int len);
+SPAN_DECLARE_NONSTD(void) fax_modems_hdlc_tx_frame(void *user_data, const uint8_t *msg, int len);
SPAN_DECLARE(void) fax_modems_hdlc_tx_flags(fax_modems_state_t *s, int flags);