install question

I use the command in [url](https://github.com/intel/llvm/blob/sycl/sycl/doc/GetStartedGuide.md)
```
git clone https://github.com/intel/llvm -b sycl
cd llvm
python ./buildbot/configure.py
python ./buildbot/compile.py
```
the llvm-clang is install in the path `./llvm/build/bin`, if i wanna to install the llvm-clang in the path `/usr/lib/llvm/bin`, which command i need to run.