The concept of system extensions or DEXTs is fairly new to MacOS. My team is in process of developing one. Is it planed to support this technology? Building and signing a dext with cmake would be a great extension. Another great thing would be, to include a possibility to add a dext with cpack into an app bundle.
We do not currently have any functionality for building dexts with CMake, but it sounds like a very interesting project! If you can write a CMake module to do it (or, if necessary, modify CMake itself), I think we might be willing to add it to CMake.
FWIW, it is certainly possible to build things like kernels and drivers in CMake - ReactOS uses CMake, even for the kernel, and I myself have used it in attempting to write my own OS kernel.
Sorry for the long time silence. Can you refer me to a documentation on how to create a CMake module?