Build from Source Error '/usr/local/cuda/lib64' is not a directory

[jordandraper]

OS: macOS High Sierra 10.13.6 (17G2307)
Xcode: 10.1 (10B61)
Apple LLVM: 10.0.0
CUDA Toolkit: 10.1 with cuDNN for CUDA 10.1

I successfully built/installed PyTorch from source. Then went to build/install Torch Vision but kept running into this error:

ld: warning: -L path '/usr/local/cuda/lib64' is not a directory
ld: library not found for -lcudart
clang: error: linker command failed with exit code 1 (use -v to see invocation)
error: command 'clang++' failed with exit status 1

Something about the build is pointing to '/usr/local/cuda/lib64' even though the newest CUDA 10.1 installation uses '/usr/local/cuda/lib'.

As a fix, I duplicated the '/usr/local/cuda/lib' folder, renamed it '/usr/local/cuda/lib64' and the build worked.

[fmassa]

What command did you use to install torchvision?

This might be a problem with our cpp extension picking the wrong directory.

cc @yf225 this part of the code might have a limitation that could potentially be fixed

[jordandraper]

@fmassa I used MACOSX_DEPLOYMENT_TARGET=10.9 CC=clang CXX=clang++ python setup.py install

[fmassa]

Ok, thanks!

This looks like something that we should fix in PyTorch.

[DrMechanica]

I'd like to chime in and say I'm having the same issue here in July. Fixed it by editing the relevant lines in cpp_extension.py as mentioned by @fmassa.

[fmassa]

@DrMechanica I was about to open an issue in PyTorch when I realized that there was already one open in pytorch/pytorch#16955 .