CMAKE_CXX_USE_RESPONSE_FILE_FOR_INCLUDES Not working

I’m trying to better understand disabling response files as I have a situation where disabling them in the top parent level CMake file with.

SET(CMAKE_C_USE_RESPONSE_FILE_FOR_INCLUDES 0)
SET(CMAKE_CXX_USE_RESPONSE_FILE_FOR_INCLUDES 0)

This is working as expected on all my platforms in my CI but not on one which is detailed below.

Windows Server 2019
MSYS2
CMake 3.21.1

No matter how I set the option using a zero or “OFF” it is still creating response files. Would anyone have any ideas what could be interferring with this or how I can configure this environment to force not producing these response files.

Thanks in advance for any suggestions.

CS

It seems that only the Makefile generators care about this variable. What generator are you using?