RFC: Listening for devices being added - udev vs. X11

[Martin Kelly]

> It'll take a while until Wayland is ready for the desktop (yes, I am
> aware there is work on desktop shells for Weston) and until toolkits
> are fully ready for Wayland.
>
> It's a good point however, udev is a fairly good mechanism to monitor
> for device changes (we already use it in thunar/thunar-volman) and it's
> the tool of choice in Wayland/Weston/libinput as well.
>

What does thunar use to handle udev incompatibility on *BSD? It sounds 
like I should handle this in a similar way.