Read the readme.txt file to know the files and the subfolders.
Run configure bash script to obtain a desired configuration for emu.
To use Emu library, put the following in your program header or source.
#include "cppl/index.hpp"
The namespace is emu. So use emu:: before any non-macro elements.
You can also put the following somewhere appropriate in your code.
using namespace emu;
Compile your program on your own. Alternatively use compile bash script.