I use the online versions, e.g. https://www.gnu.org/software/make/manual/html_node/index.html https://www.gnu.org/software/make/manual/html_node/index.htm.... I

I use the online versions, e.g. https://www.gnu.org/software/make/manual/html_node/index.html https://www.gnu.org/software/make/manual/html_node/index.htm.... In this form they are pretty good documentation (although that is usually due to being comprehensive and adequately written, nothing really to do with info beyond supporting adequate structure).