[Update]: If you’re trying to compile Ettercap on Leopard, check here.
I’ve been trying to get this compiled for 2 days now, finally found out how to do it. Figured I’d share for everyone else.
If you try this without making the change to the configure file it will complain about you not having support for pthreads, so here’s what you do:
Open the configure script, search for the line that say something like
"$OS" != "MACOSX", you need to change this line to say
"$OS" != "DARWIN", voila!
./configure && make && make install away! Enjoy ettercap!
Now if I could only get dsniff working as well… :-/