I am currently trying to install Kismet from source and running into the following issue:
configure: WARNING: Compiling without libpcap support.
configure: error: Could not find working libpcap. Libpcap is vital from the majority of capture sources Kismet supports. It must be explicitly disabled.
I tried installing the latest libpcap from www.tcpdump.org
When I run ./configure on this extract, I get the following message:
Your operating system's lex is insufficient to compile libpcap. flex is a lex replacement that has many advantages, including being able to compile libpcap. For more information, see http://www.gnu.org/software/flex/flex.html