Libpcap problem:
----------------

The port compiles cleanly under FreeBSD 5.3 but fails on older
systems as the included libpcap version on those systems is < 0.8.

I tested this on a 5.3-STABLE and 4.10-STABLE machine. According
to the CVS log messages libpcap was upgraded to 0.8.3 in 5.3 (503000)
so on all older systems we should add the libpcap port as a dependecy.



long_getopts issue:
-------------------

Similar to the pcap issue, long_getopt doesn't exist on older FreeBSD
versions.

In config.h I uncommented the '#define WITH_LONGOPTS' line which
enabled this feature. On a 5.2 (502104) or higher system -DWITH_LONGOPTS
is added to CFLAGS to reenable it (this required a very small patch).

I also added the following to the pkg-message file:

Note that the long option parameters, which are displayed by this
ports man page and help menu, are disabled on FreeBSD systems prior
to 5.2.



package issue:
--------------

The chroot dir '/usr/local/var/unicornscan/' wasn't included
in the package. This caused unicornscan to dump core.