Building on macOS with CUDA failed

[ctongfei]

Environment: macOS 10.13 High Sierra, CUDA 9.0.197, cuDNN 7, Python 3.6.1 (Anaconda 5.0.0), AppleClang 8.0.0 (installed through Apple XCode CLT).

Invocation script: CC=clang CXX=clang++ NO_DISTRIBUTED=1 python setup.py install

I got the following error:

...
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -I/Users/tongfei/anaconda/include -arch x86_64 -I/Users/tongfei/anaconda/include -arch x86_64 -I/Users/tongfei/my/proj/py/pytorch -I/Users/tongfei/my/proj/py/pytorch/torch/csrc -I/Users/tongfei/my/proj/py/pytorch/torch/lib/pybind11/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/TH -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THPP -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THNN -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/ATen -I/Users/tongfei/anaconda/lib/python3.6/site-packages/numpy/core/include -I/usr/local/cuda/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THCUNN -I/usr/local/cuda/include -I/Users/tongfei/anaconda/include/python3.6m -c /Users/tongfei/my/proj/py/pytorch/torch/csrc/generated/cuda_TensorLong.cpp -o build/temp.macosx-10.7-x86_64-3.6/Users/tongfei/my/proj/py/pytorch/torch/csrc/generated/cuda_TensorLong.o -D_THP_CORE -std=c++11 -Wno-write-strings -fno-strict-aliasing -DWITH_NUMPY -DWITH_CUDA -DCUDA_LIB_PATH=/usr/local/cuda/lib -DWITH_CUDNN
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -I/Users/tongfei/anaconda/include -arch x86_64 -I/Users/tongfei/anaconda/include -arch x86_64 -I/Users/tongfei/my/proj/py/pytorch -I/Users/tongfei/my/proj/py/pytorch/torch/csrc -I/Users/tongfei/my/proj/py/pytorch/torch/lib/pybind11/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/TH -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THPP -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THNN -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/ATen -I/Users/tongfei/anaconda/lib/python3.6/site-packages/numpy/core/include -I/usr/local/cuda/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THCUNN -I/usr/local/cuda/include -I/Users/tongfei/anaconda/include/python3.6m -c /Users/tongfei/my/proj/py/pytorch/torch/csrc/generated/cuda_TensorFloat.cpp -o build/temp.macosx-10.7-x86_64-3.6/Users/tongfei/my/proj/py/pytorch/torch/csrc/generated/cuda_TensorFloat.o -D_THP_CORE -std=c++11 -Wno-write-strings -fno-strict-aliasing -DWITH_NUMPY -DWITH_CUDA -DCUDA_LIB_PATH=/usr/local/cuda/lib -DWITH_CUDNN
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -I/Users/tongfei/anaconda/include -arch x86_64 -I/Users/tongfei/anaconda/include -arch x86_64 -I/Users/tongfei/my/proj/py/pytorch -I/Users/tongfei/my/proj/py/pytorch/torch/csrc -I/Users/tongfei/my/proj/py/pytorch/torch/lib/pybind11/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/TH -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THPP -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THNN -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/ATen -I/Users/tongfei/anaconda/lib/python3.6/site-packages/numpy/core/include -I/usr/local/cuda/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THCUNN -I/usr/local/cuda/include -I/Users/tongfei/anaconda/include/python3.6m -c /Users/tongfei/my/proj/py/pytorch/torch/csrc/generated/TensorHalf.cpp -o build/temp.macosx-10.7-x86_64-3.6/Users/tongfei/my/proj/py/pytorch/torch/csrc/generated/TensorHalf.o -D_THP_CORE -std=c++11 -Wno-write-strings -fno-strict-aliasing -DWITH_NUMPY -DWITH_CUDA -DCUDA_LIB_PATH=/usr/local/cuda/lib -DWITH_CUDNN
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -I/Users/tongfei/anaconda/include -arch x86_64 -I/Users/tongfei/anaconda/include -arch x86_64 -I/Users/tongfei/my/proj/py/pytorch -I/Users/tongfei/my/proj/py/pytorch/torch/csrc -I/Users/tongfei/my/proj/py/pytorch/torch/lib/pybind11/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/TH -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THPP -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THNN -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/ATen -I/Users/tongfei/anaconda/lib/python3.6/site-packages/numpy/core/include -I/usr/local/cuda/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THCUNN -I/usr/local/cuda/include -I/Users/tongfei/anaconda/include/python3.6m -c /Users/tongfei/my/proj/py/pytorch/torch/csrc/generated/cuda_TensorByte.cpp -o build/temp.macosx-10.7-x86_64-3.6/Users/tongfei/my/proj/py/pytorch/torch/csrc/generated/cuda_TensorByte.o -D_THP_CORE -std=c++11 -Wno-write-strings -fno-strict-aliasing -DWITH_NUMPY -DWITH_CUDA -DCUDA_LIB_PATH=/usr/local/cuda/lib -DWITH_CUDNN
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -I/Users/tongfei/anaconda/include -arch x86_64 -I/Users/tongfei/anaconda/include -arch x86_64 -I/Users/tongfei/my/proj/py/pytorch -I/Users/tongfei/my/proj/py/pytorch/torch/csrc -I/Users/tongfei/my/proj/py/pytorch/torch/lib/pybind11/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/TH -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THPP -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THNN -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/ATen -I/Users/tongfei/anaconda/lib/python3.6/site-packages/numpy/core/include -I/usr/local/cuda/include -I/Users/tongfei/my/proj/py/pytorch/torch/lib/tmp_install/include/THCUNN -I/usr/local/cuda/include -I/Users/tongfei/anaconda/include/python3.6m -c /Users/tongfei/my/proj/py/pytorch/torch/csrc/generated/cuda_TensorInt.cpp -o build/temp.macosx-10.7-x86_64-3.6/Users/tongfei/my/proj/py/pytorch/torch/csrc/generated/cuda_TensorInt.o -D_THP_CORE -std=c++11 -Wno-write-strings -fno-strict-aliasing -DWITH_NUMPY -DWITH_CUDA -DCUDA_LIB_PATH=/usr/local/cuda/lib -DWITH_CUDNN
error: command 'clang' failed with exit status 1

[ghost]

You probably need to downgrade Xcode command line
I followed this video

[zhanghang1989]

Got same error. any updates? I did downgrade the command line as in #3047

[ezyang]

@ctongfei You're going to have to give us a longer snippet of the build failure, your posted log doesn't actually contain the command that failed. I'm going to close this because there is not really anything we can do to debug this, but feel free to reopen if you have a longer log.