* gnu/packages/dunst.scm (dunst): Update to 1.2.0. [inputs]: Update: remove 'libxext' and 'libxft', add 'gtk' and 'libxrandr'. [home-page]: Update for the new location.
* gnu/packages/dunst.scm: New file. * gnu-system.am (GNU_SYSTEM_MODULES): Add it.