The canonical build system for LLVM is CMake, but you can also build LLVM with Bazel now. That might give you a good idea of how to do it. The Bazel support cod

The canonical build system for LLVM is CMake, but you can also build LLVM with Bazel now. That might give you a good idea of how to do it. The Bazel support code is in https://github.com/llvm/llvm-project/tree/main/utils/bazel https://github.com/llvm/llvm-project/tree/main/utils/bazel