: /bin/sh: lex: 없음
: mv: 5253.scanner.c를 액세스할수 없음
: make[1]: *** [scanner.c] Error 2
: make[1]: Leaving directory `/usr/RTSD/RTSD-0.2/libpcap-0.4'
: cp: libpcap.a를 액세스할수 없음
: make: *** [RTSD] Error 2
: #####################################
 lex 가 없다고 하니 flex 패키지를 설치해보시죠.