This is an introduction to the autotools (autoconf, automake, and libtool) for software developers.  It presumes you already know how to develop software on Unix-like systems (Linux, *BSD, Apple MacOS, Cygwin, Solaris, etc.).

The sample files, as well as an autoconf style guide and an explanation of how this video was created, are all available here: https://dwheeler.com/autotools/