https://github.com/llvm/llvm-project/releases/download/llvmorg-19.1.6/llvm-19.1.6.src.tar.xz llvm https://github.com/llvm/llvm-project/releases/download/llvmorg-19.1.6/cmake-19.1.6.src.tar.xz cmake patches/musl-stack-size.patch