Unsolved easy way to cross compile Qt for raspberry pi

[polto molto]

hi
for who interesting in cross-compiling I provide here an easy way to do that which I test it on pi3 and pi4

video link ( show the steps on pi 3)
https://www.youtube.com/watch?v=1M4qFrfuh5s

blog link :
use the same steps for QT5.15 on PI 4
https://qtcrosscompile.blogspot.com/2020/05/build-cross-compile-qt5.html

wish it help