Basically is there only one way!
In your quest directory you have one file called "make.py" oder "make.sh"
If you use the .sh file it's simple and you only need to execute it with: "sh make.sh"
If you use the .py you need python (2.7 recommended)! This you have to install first (/usr/ports/lang/python27) and execute it with "python make.py"