Thank YOU very much !!!
I added the patch to the PKGBUILD and it seems to work.
As soon as i get rid of this error
In file included from Qt/Qt_preferences_callbacks.cpp:31:
Qt/../common/nsmtracker.h:73:6: error: #error "Missing -O2 or -O3 compiler option"
73 | #error "Missing -O2 or -O3 compiler option"
i'll start debugging on my own
![Wink ;)](./images/smilies/icon_e_wink.gif)
It's pretty amazing what you created !