Note: This guide is tested for FreeBSD 11.0-RELEASE
From the root shell, run the following commands:
pkg install git libmicrohttpd hwloc cmake
Type 'y' and hit enter to proceed with installing the packages.
git clone https://github.com/fireice-uk/xmr-stak-cpu.git
cd xmr-stak-cpu
cmake .
make
Now you have the binary located at "bin/xmr-stak-cpu". Either move this file to your desired location or run "make install" to install it to your path.
You can edit the prebuilt config.txt file found in the root of the repository or you can make your own. This file is required to run xmr-stak-cpu.