Bug#652896: Compile broadway backend

[Nicolas Delvaux]

Hi,


This is not really fixed in experimental.
Since GTK 3.8, building GTK with the "--enable-broadway-backend" is not 
enough. It is also necessary to provide the "broadwayd" binary.

Currently, on experimental:

$ GDK_BACKEND=broadway gtk3-demo

Unable to init server
(gtk3-demo:28478): Gtk-WARNING **: cannot open display:



Broadwayd is straightforward to package.
I have a PPA with it: 
https://launchpad.net/~malizor/+archive/gtk-next-broadway

The debdiff is here: 
https://launchpadlibrarian.net/136176066/gtk%2B3.0_3.8.0-0ubuntu1~build1%2Bbroadway1_3.8.0-0ubuntu1~build1%2Bbroadway2.diff.gz

Hope this help!

Cheers,
Nicolas