The GLib library is used as a basic platform abstraction library and can be used in both CLI and GUI applications. For a detailed description about GLib see Section 7.3, “The GLib library”.
GLib depends on GNU libiconv, GNU gettext, and other libraries. You will typically not come into contact with these while doing Wireshark development. Wireshark’s build system check for and require both GLib and its dependencies.
The GLib library is available for most Linux distributions and UNIX flavors. If it isn’t already installed and isn’t available as a package for your platform, you can get it at http://www.gtk.org.
You can get the latest version at http://www.gtk.org.