There are automake, autoconf, autoscan, autoheader and maybe others that I don't know about. If I want to understand and use these tools, which should be the learning order? Which should be learned first? I read the man and info page, but those pages don't give me any clear clue. I can't grab the big picture from those pages.
Can anyone give me a simple explanation (maybe with example) regarding the learning order (assuming I understand C code and a little of Makefile)?