Using blends-dev

To check the menus when building metapackages with blends-dev you can use Xephyr (new name of Xnest) in the following way: 

$ Xephyr -ac :2
$ export DISPLAY=:2

and then start the window manager with the appropriate command:

Gnome

gnome-session

KDE

startkde

twm

twm

WindowMaker

wmaker

Xfce4

startxfce4