4way: fix ifdef
extern SoftSerialData_t escSerial[4];
static uint8_t suart_getc_(uint8_t *bt) {
-#if F0
+#ifdef F0
return softserial_read_byte_ex(&escSerial[selected_esc], bt);
#else
uint32_t btime;
@@ -106,7 +106,7 @@ static uint8_t suart_getc_(uint8_t *bt) {
}
static void suart_putc_(uint8_t *tx_b) {
-#if F0
+#ifdef F0
softserial_write_byte_ex(&escSerial[selected_esc], *tx_b);
#else
// shift out stopbit first
