Qt - The compiler may not produce code compatible with the Qt version

I use MSYS2 on Windows 10 and have installed Qt 6.2.0 and Qt Creator 5.0.2. Then I set up Qt Kit and see this warning:

Warning: The compiler "MinGW-w64 MINGW64 C++ (MSYS2)" (x86-windows-msys-pe-64bit) may not produce code compatible with the Qt version "Qt 6.2.0 (mingw64)" (x86-windows-msys-pe-64bit).

How to address this issue?

I use MINGW64 subsystem of MSYS2 that has following related packages installed:

mingw-w64-x86_64-gcc 11.2.0-1
mingw-w64-x86_64-gdb 11.1-1
mingw-w64-x86_64-qt-creator 5.0.2-2
mingw-w64-x86_64-qt6-* 6.2.0-2

I failed to figure out toolchain version that was used to build Qt6 packages in order to provide the same toolchain for building applications. The only information I got is ABI : x86-windows-msys-pe-64bit and QT_VERSION : 6.2.0.

Warning message says both compiler and Qt have similar x86-windows-msys-pe-64bit ABI, but it seems to be insufficient.

Until this point I successfully build, run and debug code, but still would like to get rid of this warning if it makes sense.

Solution

It turns out this warning goes away when GCC compiler in Qt Creator Kit settings and GCC compiler used to build Qt installation have exactly the same versions.

Using mingw64/share/qt6/mkspecs/qconfig.pri, as suggested by ssbssa, I've got GCC version Qt installation was built with and supplied Qt Creator Kit with GCC compiler that have the same version. Now I see the warning is gone.