Tutorial 1 explains how to build the source code. Please read it !

You can download the ZIP archive containing the whole set of tutorials here (See the FAQ for which version to choose):

Alternatively, you have access to the latest version of the code on the Git repository :</p>

All the source code on this site (except third-party libraries) is released under the WTFPL Public Licence :</p>

           DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004</p>

Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>

Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.

DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

0. You just DO WHAT THE FUCK YOU WANT TO.</pre>
All the tutorial material is available under Creative-Common license: CC-BY-NC-ND available here