building

I am new to tweaking freeradius code. Since I am having trouble forming the information to be encrypted by SSL and then sent to the wpa_supplicant (bad decryptopmn or bad mac error on the wpa_supplicant side, and also sometimes on the server side) I want to put in some printf's in freeradius, probably in tls.c. After I add code, what needs to be built and installed, every directory has a makefile. The encryption problem is after a successful handshake and after the first server encrypted start packet, so I trust the encryption process. Thanks