how do i make file

Incremental compilation is nice, but expressing dependencies between objects, sources and headers is a pain in the ass. gcc -M is utter garbage not unlike GCC itself and generates thirty to fifty useless prerequisites per file in case one of the system headers changes. Gotta make sure, the user might be retarded after all.

How do I write good make files and still have time for actual programming?

>>6

Build systems that take five minutes to rebuild after you change a single file and don't halt on errors are just great!

Sounds like you wrote a shitty build script and you are now blaming me for it.