[macgyvr64]

I'm porting a Windows app to Mac, and it uses winpcap. I found that libpcap is a decent equivalent, and downloaded it. I did ./configure, make, and make install with no problem. 'man pcap' informs me that I need to #include <pcap.h>. I did that (and pcap.h IS in /usr/include), and used 2 different short pieces of sample code online to test it. I try to compile it, and I get a linking error about some undefined symbols. This image explains it all.

I asked another Mac developer I know, and he said I might need a pcap.o file in my project, which would normally be in /usr/lib (but it's not). The only pcap.o file that I found was in the directory I built libpcap in. Adding it to the project adds even more complaining about undefined symbols. I took pcap.o out of my project. What's up with it?

[Chuckit]

That means you aren't linking libpcap into your program. Add the library to your project and you should be good to go.

[macgyvr64]

Yeah, that's exacty what I want to do... How?

[Arkham_c]

Originally posted by macgyvr64:
Yeah, that's exacty what I want to do... How?

add -L/usr/lib -lpcap in on your compile line.

[macgyvr64]

When I do that, it can't find pcap.o. I think it should be in /usr/lib, but isn't...maybe I'll remake it.. hmmm. Any ideas?

[wadesworld]

It probably put it in /usr/local/lib.

Wade

[macgyvr64]

hmmm...The only things in my /usr/local/lib are:

libexpat.0.4.0.dylib
libexpat.dylib
php
libexpat.0.dylib
libexpat.la
php.ini-copy
libexpat.a
libpcap.a

[Chuckit]

Originally posted by macgyvr64:
hmmm...The only things in my /usr/local/lib are:

libexpat.0.4.0.dylib
libexpat.dylib
php
libexpat.0.dylib
libexpat.la
php.ini-copy
libexpat.a
libpcap.a

There it is, right at the bottom. You need to link to that.