Hi,
I am building from sources libtorch with support of GPU on OSX.
The build is fine everthing seems to be working but when I call make install I have this error
CMake Error at third_party/protobuf/cmake/cmake_install.cmake:80 (file):
  file cannot create directory:
  /Volumes/WORKSPACE/exp/pytorch/torch/include/google/protobuf.
  Maybe need administrative privileges.
Call Stack (most recent call first):
  cmake_install.cmake:95 (include)

Here the command I used to build:

export CMAKE_PREFIX_PATH=/Volumes/WORKSPACE/exp/pytorch/install
MACOSX_DEPLOYMENT_TARGET=10.13 CC=clang CXX=clang++ python3 setup.py build --cmake-only
python3 setup.py install

Is there something I am doing wrong ?
Thanks