UGMM is a simple tool written to manager PLUG's members stored in an LDAP database
An LDAP database may not be the best tool for storing this data, however it does provide central authentication which was key at the time UGMM was written.
Build a debian package to install, rather than trying to run from source, this allows easy updating of production hosts, with a rollback by installing the previous version.
To build, run
debuild -i -us -uc -b
This will give you a file like plug-ugmm_0.6.5_all.deb which you can then install with the command
sudo gdebi plug-ugmm_0.6.5_all.deb
See the documentation that will be installed along with the package: extras/README.md.
After installing, copy /usr/share/plug-ugmm/www/PLUG/ldapconnection.inc.php.example
to /etc/private/ldapconnection.inc.php and modify with your LDAP connection details.