https://doc.qt.io/qt-6/supported-platforms.html
I do see exotic stuff like INTEGRITY as well, still the point stands all those platforms listed on the page have to support C++26 in the Compiler column as the reference compiler.
https://doc.qt.io/qt-6/supported-platforms.html
I do see exotic stuff like INTEGRITY as well, still the point stands all those platforms listed on the page have to support C++26 in the Compiler column as the reference compiler.