Please take note of the AUTHORS and LICENSE for this repo. Only the authors can offer you specific license terms. This repo is licensed per the LICENSE file
once you have replicated this repo you'll need the following pacakges installed before you can compile
use apt-get to install these packages
mysql-client-core-5.5 libapr1-dev libaprutil1-dev apache2-utils autoconf
e.g.
sudo apt-get install mysql-client-core-5.5 libapr1-dev libaprutil1-dev apache2-utils autoconf
then do a
./configure
make
sudo make install
Other instructions can be found in the INSTALL file