[ised]

Whenever this gets posted, comments seem to focus on what to use going forward. It seems obvious for most projects there are better alternatives.

However whenever I see autotools documentation I think of only one thing: it's worth learning how this old system works because, even if you will never yourself use it for your own projects, so much code written by others over past decades requires autoconf, automake, often libtool, and sometimes pkg-config.

For me, understanding how these old hacks work is very important in getting a large majority of open source software projects to compile after I make modifications, e.g., removing code.

Oftentimes I think that people who use autotools do not truly understand _how it works_, they have only figured out _how to use it_. This is reasonable but the problem is that autotools is very brittle, and if it breaks they have little idea how to fix it.