how to cross compile firestarter-1.0.3.src.rpm for powerpc


I have powerpc environment and i want to compile firestarter-1.0.3.src.rmp /firestarter-1.0.3.tar for powerpc target.when i run make it is using gcc compiler by default,i want to replace gcc by ppc . and what are the executables will be created after compilation to be taken o target.