QT5 Cross compile GUI with buildroot for raspberry pi3

The document can be downloaded from here: https://github.com/EliArad/MyDocuments I used buildroot to produce me an image with Qt5. used external toolchanin. Using qmake and the cross compile eabihf from buildroot i created a new mkspec for arm eabi hf compiler qmake created for me a makefile , i added c++ 11 flags and compile the project. I did not managed yet to use qtcreator to run the exact command like i did in the command line, but it is good for now to make it work. by learning from others i want to share what i am learning , Hope it will help you guys out there.