We need YOU to maintain this port of FreeSWITCH. Please contact one of the FreeSWITCH core developers on Freenode IRC channel #freeswitch or the firstname.lastname@example.org mailing list to help them keep the code current for this operating system.
This is part of the Installation documentation which you should review first. It provides notes unique to NetBSD. Tested on NetBSD 6.1.4 (amd64)