I have a similar problem, with includes for out of source builds on unix (although I am not using QT), and in each effected projected I added.
In a project I'm working on I use this statement to handle includes in my CMakeLists.txt.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.