Just run "make" to build the module and "make install" (as root) to install
the module. This will use Apache's apxs to build/install from source.

Have a look at cfg_ldap.conf to learn about configuration.

Your LDAP server needs to include mod_cfg_ldap.schema. If you do not use
OpenLDAP you are on your own to build a schema.

You should configure the LDAP server to maintain indices on apacheServerName,
apacheServerAlias and anything you use in your additional search filter.