Unless i am understanding you wrong, you could easily do this by #including all your a.c, b.c etc. into one file input.c and feeding that to the compiler. We d

Unless i am understanding you wrong, you could easily do this by #including all your a.c, b.c etc. into one file input.c and feeding that to the compiler. We did this for a home-grown SoC with a gcc port for which there was no linker.