john@trine-midnight:~/Desktop/ptw/src$ sudo make
cc   -o aircrack-ptw aircrack-ptw.c aircrack-ptw-lib.c  -lpcap 
aircrack-ptw.c:5:18: error: pcap.h: No such file or directory
aircrack-ptw.c: In function ‘main’:
aircrack-ptw.c:33: error: ‘PCAP_ERRBUF_SIZE’ undeclared (first use in this function)
aircrack-ptw.c:33: error: (Each undeclared identifier is reported only once
aircrack-ptw.c:33: error: for each function it appears in.)
aircrack-ptw.c:34: error: ‘pcap_t’ undeclared (first use in this function)
aircrack-ptw.c:34: error: ‘descr’ undeclared (first use in this function)
aircrack-ptw.c:60: error: ‘DLT_IEEE802_11’ undeclared (first use in this function)
aircrack-ptw.c:65: error: dereferencing pointer to incomplete type
aircrack-ptw.c:65: error: dereferencing pointer to incomplete type
make: *** [aircrack-ptw] Error 1
john@trine-midnight:~/Desktop/ptw/src$