devhelp : An API documentation browser for GNOME ( https://wiki.gnome.org/Apps/Devhelp )
gdbus-codegen : GDBus code and documentation generator ( https://www.gtk.org/ )
glib-utils : Build utilities for GLib using projects ( https://www.gtk.org/ )
gtk-doc-am : Automake files from gtk-doc ( https://www.gtk.org/gtk-doc/ )
sysprof-capture : Static library for sysprof capture data generation ( http://sysprof.com/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gnome-next
For Paludis use this rsync : rsync://gentoo.zugaina.org/gnome-next-portage
If you have a problem : ycarus(-at-)zugaina.org