CMAKE_GENERATOR
From Get docs
CMAKE_GENERATOR
The generator used to build the project. See cmake-generators(7).
The name of the generator that is being used to generate the build files. (e.g. Unix Makefiles, Ninja, etc.)
The value of this variable should never be modified by project code. A generator may be selected via the cmake(1) -G option, interactively in cmake-gui(1), or via the CMAKE_GENERATOR environment variable.
© 2000–2021 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.21/variable/CMAKE_GENERATOR.html
