Hi, hi, hi little droogies

I've patched a 2.6.24 kernel with tproxy-kernel-2.6.24-20080602
-165651-1212418611.tar.bz2 and downloaded squid 3.1, wich includes the tproxy4 patch. Using Slackware 12 here.

Just installed everything, but, when I start squid this message comes up:

 WARNING: comm_open: setsockopt(IP_TRANSPARENT) not supported on this platform

What does that mean? Something went wrong? This squid installation is
still usable? Can I ignore this and move forward patching iptables and
implementing tproxy4?

Thanks in advance,
Felipe Cruxen Godinho