The rule books talks about "atmosphérique" vs "suralimenté", which can best be translated as "normally aspirated" vs "forced induction". So in theory you can use a turbocharger (exhaust gases driving the compressor), a supercharger (crankshaft driving the compressor) or both, irrespectively whether the fuel is petrol or diesel.
However, as you can read on
http://en.wikipedia.org/wiki/Turbodi...diesel_engines it does not make much sense to use a supercharger on a diesel engine. Superchargers take away power from the engine and are bad for fuel economy. A turbocharger almost come for free because you recover energy from the waste exhaust gases.