[Development] Qt5 release integration build

[Friedemann Kleint]

Hi,

 >I suppose that the warnings in the list beneath are still unsolved. Is 
that correct?
 >How critical is it to solve those warnings? If they are critical for 
the release, I want to give a helping hand to remove them (after all 
there are more than 900, the >list below is a synopsis).

The libraries and examples should be fairly clean; we keep an eye on it 
(MSVC2012 or MinGW64, typically). Fixing all warnings in the tests is a 
different matter. Warnings there are not that critical and things like 
'unsafe std::copy()' or similar can be safely be ignored there.

Talking about tests: The test .pro-files still have a lot of DEFINES += 
QT_DISABLE_DEPRECATED_BEFORE=0  . Getting rid of those (unless the test 
actually tests deprecated API)  is IMO more important than fixing other 
warnings since that is going to hit us at some point (in Qt  6 at the 
very latest).

The usual technique for fixing warnings is to push one change per 
warning type for easier review (for example, fix all signed/unsigned 
comparisons in one change).

Regards,
Friedemann

-- 
Friedemann Kleint
Digia, Qt