Best practice for libraries supporting both Qt4 and Qt5

[Allan Sandfeld Jensen]

On Thursday 28 November 2013, Michael Palimaka wrote:
> 
> Any thoughts?
> 
In an ideal world we would convince the distros to enable Qt namespace on Qt5, 
so that Qt4 and Qt5 symbols does not clash, and does not cause crashes when 
loaded as plugins etc.

`Allan