foostation:/home/rmayorga# gcc segundo.c
segundo.c: In function 'my_callback':
segundo.c:101: warning: passing argument 1 of 'ether_ntoa' from incompatible pointer type
segundo.c:102: warning: passing argument 1 of 'ether_ntoa' from incompatible pointer type
segundo.c:127: warning: assignment from incompatible pointer type
segundo.c:161: warning: initialization discards qualifiers from pointer target type
/tmp/cc3TjIGv.o: In function `busca_dispositivos':
segundo.c:(.text+0x1c): undefined reference to `pcap_lookupdev'
segundo.c:(.text+0x9c): undefined reference to `pcap_lookupnet'
/tmp/cc3TjIGv.o: In function `probar_sniffer':
segundo.c:(.text+0x1e0): undefined reference to `pcap_lookupdev'
segundo.c:(.text+0x25c): undefined reference to `pcap_open_live'
segundo.c:(.text+0x2b0): undefined reference to `pcap_next'
/tmp/cc3TjIGv.o: In function `snif_network':
segundo.c:(.text+0x724): undefined reference to `pcap_open_live'
segundo.c:(.text+0x794): undefined reference to `pcap_compile'
segundo.c:(.text+0x7e4): undefined reference to `pcap_setfilter'
segundo.c:(.text+0x83c): undefined reference to `pcap_loop'