[Buildroot] [git commit branch/2019.02.x] qt5base: Add patch to fix compile issue with gcc9

[Julien Béraud]

On 19/09/2019 18:46, Peter Korsgaard wrote:

> 
> What about qt 5.6? Do we need a similar patch there?
> 

I can't build 5.6 due to other compilation errors so I can't tell sorry.

Regards,
Julien