This is just a script, that invokes whichever compiler is set in the "CC" environment variable. If you set CC=tcc, it's basically the same as "tcc -run file.c",

This is just a script, that invokes whichever compiler is set in the "CC" environment variable. If you set CC=tcc, it's basically the same as "tcc -run file.c", but I suppose this is a little bit nicer: "c file.c". I would probably use this with Clang rather than TCC if Clang compiles fast enough, which it generally does.