[OE-core] Getting "menuconfig" to work again?

[Mike Looijmans]

When running a "menuconfig" (or any other task that needs a terminal), 
bitbake just "stops" and doesn't show any terminal.

I'm using the current master branch of everything, on Ubuntu 15.

When running with "-D" I can see the following log:

DEBUG: Executing task do_menuconfig
DEBUG: Attempting to spawn terminal "custom"
DEBUG: No custom terminal (OE_TERMINAL_CUSTOMCMD) set
DEBUG: Attempting to spawn terminal "tmux-running"
DEBUG: Attempting to spawn terminal "tmux-new-window"
DEBUG: Attempting to spawn terminal "gnome"

But nothing happens from that point.

-- 
Mike Looijmans