# Pastebin IWQDlIbY
/home/david/litex/litex/soc/software/libnet/microudp.c:121:20: error: 'ETHMAC_SLOT_SIZE' undeclared here (not in a function); did you mean 'ETHMAC_SIZE'?
  unsigned char raw[ETHMAC_SLOT_SIZE];
                    ^~~~~~~~~~~~~~~~
                    ETHMAC_SIZE
/home/david/litex/litex/soc/software/libnet/microudp.c: In function 'send_packet':
/home/david/litex/litex/soc/software/libnet/microudp.c:162:22: error: 'ETHMAC_TX_SLOTS' undeclared (first use in this function); did you mean 'ETHMAC_BASE'?
  txslot = (txslot+1)%ETHMAC_TX_SLOTS;
                      ^~~~~~~~~~~~~~~
                      ETHMAC_BASE
/home/david/litex/litex/soc/software/libnet/microudp.c:162:22: note: each undeclared identifier is reported only once for each function it appears in
/home/david/litex/litex/soc/software/libnet/microudp.c:163:67: error: 'ETHMAC_RX_SLOTS' undeclared (first use in this function); did you mean 'ETHMAC_BASE'?
  txbuffer = (ethernet_buffer *)(ETHMAC_BASE + ETHMAC_SLOT_SIZE * (ETHMAC_RX_SLOTS + txslot));
                                                                   ^~~~~~~~~~~~~~~
                                                                   ETHMAC_BASE
/home/david/litex/litex/soc/software/libnet/microudp.c: In function 'microudp_start':
/home/david/litex/litex/soc/software/libnet/microudp.c:433:67: error: 'ETHMAC_RX_SLOTS' undeclared (first use in this function); did you mean 'ETHMAC_BASE'?
  txbuffer = (ethernet_buffer *)(ETHMAC_BASE + ETHMAC_SLOT_SIZE * (ETHMAC_RX_SLOTS + txslot));
                                                                   ^~~~~~~~~~~~~~~
                                                                   ETHMAC_BASE