Making DVTS-0.3.6

simply type "make".
For making v6 version, simply type "make v6".
When using using new versions of kame, edit the Makefile for DVTS if "make v6" doesn't work.
Just comment out the part,

INCv6        = -I/usr/src/kame/freebsd3/sys

If that doesn't work neither, configure that line that the compiler can find the header files.