Hi, I haven't tried this on earlier versions of Raspbian based on debian jessie, but the latest version based on debian stretch is really simple to install working v4l2loopback:
sudo apt install raspberrypi-kernel-headers libusb-1.0-0-dev dkms v4l2loopback-utils v4l2loopback-dkms
sudo modprobe v4l2loopback video_nr=0,1,2,3
If it's OK, as per previous replies a way back, I'll create a git repo with the contents of flir8p1-gpl.tar (unless someone has already done it that I missed?)