The best documentation evar for *nix open-source projects on GitHub:

$ make

.DEFAULT_GOAL = help

help:
@echo "Please use 'make <target>' where <target> is one of"
@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z\._-]+:.*?## / {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST)

Done :)

Well... I get angry everytime I find something that is undocumented.

But Makefiles?

If you have to build software and package it by yourself, I realllllly hope you can read Makefiles.

Building shit by yourself is really something can be mind boggling hard.

:)

(the problem is seldom the Makefile, rather the compiler -/ linker stuff, flags (LD/C/CXX)… transitive / automagic dependencies.... patched libraries included in source code...)

So yeah, it's not the make command you should be worried about. XD