qt5 includes

[Treeve Jelbert]

I am trying to build kf5libs using the latest extra-cmake-modules and 
yesterday's qtbase.

At first I encountered a problem regarding qt support for SSL. I 
bypassed that and then got several compile errors.

They all seemed to be related to

#include <QtCore/xxx>

I then noticed that the compile flags had several includes for 
individual qt modules, such as
-i/opt/qt5/include/QtCore, but nothing for the overall 
/opt/qt5/include.