sudo apt-get install libglib2.0-dev
GLib is a bundle of three (formerly five) low-level system libraries
written in C
and developed mainly by GNOME.
GLib's code was separated from GTK,
so it can be used by software other than GNOME
and has been developed in parallel ever since.
The name "GLib" originates from the project's start
as a GTK C utility library.