slackbuilds_ponce/libraries/libnetfilter_log

libnetfilter_log is a userspace library providing interface to packets
that have been logged by the kernel packet filter. It is is part of
a system that deprecates the old syslog/dmesg based packet logging. 
This library has been previously known as libnfnetlink_log. 

libnetfilter_log is used by ulogd2.

This requires libnfnetlink.