Libconfig is a simple library for processing structured configuration files.
File format is more compact and more readable than XML. And unlike XML, it is
type-aware, so it is not necessary to do string parsing in application code.

Libconfig is very compact — a fraction of the size of the expat XML parser
library. This makes it well-suited for memory-constrained systems like handheld
devices.

The library includes bindings for both the C and C++ languages. It works on
POSIX-compliant UNIX systems (GNU/Linux, Mac OS X, Solaris, FreeBSD) and Windows
(2000, XP and later). And now, on AmigaOS4 as well.