[cancerhacker]

I liked and appreciated this, two points I'd like to make: you should disable optimizations and whatever inlining caused printf to become puts (or, alternatively, write the hello world to use puts directly), second would be to break your compile step into the 4 real parts: preprocess, compile, assemble, link. Or add --save-temps to the cc line and describe the various files created. There's a lot less magic involved if you can see the pipeline.