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X.Org authorization settings program

X11 miscellaneous micro-utility library

A webbrowser engine
http://webkit.org/

Gnome HTTP Library
http://www.gnome.org

International Components for Unicode library
http://www.icu-project.org/

GLib bindings for DBUS
http://www.freedesktop.org/wiki/Software/DBusBindings

Freedesktop.org message bus system
http://www.freedesktop.org/Software/dbus

Command line utilities for working with desktop entries
http://www.freedesktop.org/wiki/Software/desktop-file-utils

Freedesktop.org Hicolor icon theme
http://icon-theme.freedesktop.org/wiki/HicolorTheme

X11 Direct Graphics Access extension library

X11 Xinerama extension library

X11 Input extension library

X cursor management library

X11 RandR extension library
http://xorg.freedesktop.org/

A library for layout and rendering of text
http://www.pango.org/