If you also look into the Makefile accompanied, it's just copying itself to smr file and giving it executable rights. So smr.c when built outputs it's source co

If you also look into the Makefile accompanied, it's just copying itself to smr file and giving it executable rights. So smr.c when built outputs it's source code. The makefile is not large. It's a makefile for all the entries for 1994 competition. And it's only 4 lines for smr.c