Have a look at your cmake_env.inc

On MSYS2, CMAKE_SYSTEM_NAME is always Windows so your check for MSYS and MINGW32 will not work. You can use these variables instead:

https://cmake.org/cmake/help/latest/variable/MINGW.html

https://cmake.org/cmake/help/latest/variable/MSVC.html

https://cmake.org/cmake/help/latest/variable/WIN32.html

For Linux you still have to check with CMAKE_SYSTEM_NAME. Note: since cmake 3.25 you could use the variable LINUX.

[gozfree]

yes, thanks for your help