From the README:
"The SQL backend support is compiled in the module. For RADIUS and DIAMETER you need to enable it by recompiling the module with properly set defines: uncomment the RAD_ACC or DDIAM_ACC lines in modules/acc/Makefile. To compile RADIUS support, you need to have radiusclient-ng (only versions higher or equal to 0.5.0) installed on your system which is available from http://developer.berlios.de/projects/radiusclient-ng/.%E2%80%9D
This compile-time option is one of the few remaining that makes binary distributions hard - I don’t know how the debian packages handled this one.
Anyone that wants to attempt a way to handle this as modules instead? I don’t fancy adding diameter and radius support as a requirement for compiling ACC but there has to be a way to follow the lead of the AUTH modules, with one generic module and then additional AUTH_RADIUS etc.
(Looking at you Carsten :-) )
/O