Argh! is an esoteric programming language in the spirit of Befunge, Brainfuck, and friends. It is a nice and simple language with two dimensional code-flow, a combined code/data array, an infinite stack, regular characters for all instructions, no strange braces or symbols, no unnecessary arithmetic operators (add and sub are all you need), and countless other features it doesn't have. The distribution includes interpreters for Argh! and Aargh! (an extended Argh! that is most likely Turing complete), the official specification, editing modes for emacs and vim, and lots of examples.
Ecf (Emacs Configuration Framework) is a versatile configuration package for Emacs. It is meant for users whose Emacs configuration has become so complex that it appears to be unmanageable. It enables you to write and load the configuration for individual Emacs packages in pieces. You can use it to setup some autoloads for a package when you start Emacs and then do extra configuration after the package has loaded. This speeds up your Emacs startup without compromising your ability to do complicated things.
The Autotoolset package complements the GNU build system by providing automatic generation of legal notices, automatic generation of GNITS-standard directory trees, a rudimentary portability framework for C++ programs, support for writing portable software that uses both Fortran and C++, additional support for writing software documentation in Texinfo and LaTeX, and a manual introducing both Autotools and the GNU build system in a unified task-oriented manner.