building bhyve from source

Hi all,

I'm trying to build bhyve from source, with the ultimate goal of fixing 
https://reviews.freebsd.org/D39620 in my production TrueNAS Core system.

I've followed the TrueNAS build instructions at 
https://github.com/truenas/core-build and although some packages failed 
to build, the FreeBSD build seemed to work and I seem to have builds of:

- bhyve
- bhyvectl
- bhyveload
- libvmmapi.so.5
- vmm.ko

Are those indeed the entirety of bhyve?  To use my build of bhyve, is it 
just a matter of replacing those 5 files?

Thanks,

Sean