can't make a rpm from radius sources

[Cristian Novac]

Hello all,
I have downloaded freeradius-server-2.0.0.tar.gz and after intalling it, 
I made some code modifications to meet my expectations.
Than I compiled again from the "src" directory using make && make 
install; after this, freeradius worked fine, as I intended;
Now I would like to make a rpm from this modified version that I have.
Could someone please tell me what steps should I follow in order to 
achieve this, a rpm from the modified sources.
I would also like to preserve the modified configurations from the 
following files: eap.conf and users; and also two dictionaries that I 
manually added to the share/freeradius directory.

Thank you in advance !
Cristian NOVAC.