[CMake] MSYS variable set in mxe-conf, promptly unset in CMakeSystemSpecificInitialize

[Neo-Desktop]

Hi there, as the title says:

The MSYS variable is defined in

<mxe prefix>/usr/<tuple>.<type>/share/cmake/mxe-conf.cmake:38

but then promptly unset by:
<mxe prefix>/usr/<host arch>/share/cmake-3.28/Modules/CMakeSystemSpecificInitialize.cmake:16

rendering the variable ineffective.

Due to my relative unfamiliarity with many of CMakes bootstrapping process, I'm not entirely sure how to bypass that (it seems that mxe-conf.cmake should be loaded after the bootstrap has completed)

My current work-around is to add -DMSYS on the command line, and this seems to persist past the bootstrap

Please advise if there is any additional information you require from me