CMake support

git submodule setup in main repository

git submodule init
git submodule update

cmake configure in main repository

cmake -GNinja -DCMAKE_BUILD_TYPE=Debug -B cmake-build-debug .

Define variables GODOTCPP_PRECISION=single|double and/or BITS=32|64 for further build variants if needed.

cmake build/install in specified build folder cmake-build-debug

cmake --build . --target install --config Debug

This installs the built library in the bin folder of the repository.