Bug#773009: Just an update, in case someone else reaches here

[Ronoaldo José de Lana Pereira <ronoaldo@gmail.com>]

I had to remove the qt5 development libraries that were installed on
my system in order to build kde-workspace from sources. I don't know
if there is such thing as a "build conflict" stanza to put in
debian/control.

Thanks!

-- 
Ronoaldo Pereira
http://www.ronoaldo.net/