How to compile an app?

I have been trying to compile without much luck :frowning:

I am using 6.2 and have loaded everything I could think of I might need
from the awesome “3rd party cd” and am trying to get stuff going like
libpcap and nmap.

When I try to run nmap, I get all kinds of wierd errors I have never seen
under Linux. Am I doing something wrong?

What do I need to compile my own copies of things I can normally under
Linux, like libpcap, nmap, tcpdump, ethereal??

Thanks for any help you can give…