>> https://codereview.qt-project.org/181112
> not sure why anyone would want to stop/block execution of the one and
> only thread.

sleep() and friends do have a place in single threaded applications. You can 
use them to do some backoff mechanism when waiting for an external event. You 
shouldn't do that when user interaction is allowed, but there is no reason not 
to have them in the API. Furthermore, not having them makes things more 
complicated as we are using them ourselves and some code would have to be 
wrapped in #ifdef to compile without them. Btw, if you look at the patch, 
you'll notice it doesn't actually add or remove any code. It only moves #ifdefs 
around.

>> https://codereview.qt-project.org/180973
>> https://codereview.qt-project.org/180971
>> https://codereview.qt-project.org/180972
>  ^ these we already have :)

... I guess I have to try "configure -no-feature-thread" again and see what 
happens.

Ulf
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