nvidia-cuda-toolkit's /usr/lib/cuda contains empty directories

[Joel E. Denny]

/usr/lib/cuda is a monolithic cuda tree shim in the nvidia-cuda-toolkit package according to the 8.0.61-3 entry at:

http://changelogs.ubuntu.com/changelogs/pool/multiverse/n/nvidia-cuda-toolkit/nvidia-cuda-toolkit_9.1.85-3ubuntu1/changelog

However, on my system, /usr/lib/cuda contains empty bin, include, and lib64 subdirectories. I expected, for example, bin to contain nvcc. Were there supposed to be symlinks, like the nvvm/libdevice subdirectory?

$ lsb_release -rd
Description: Ubuntu 18.04.1 LTS
Release: 18.04

$ apt-cache policy nvidia-cuda-toolkit
nvidia-cuda-toolkit:
  Installed: 9.1.85-3ubuntu1
  Candidate: 9.1.85-3ubuntu1
  Version table:
 *** 9.1.85-3ubuntu1 500
        500 http://us.archive.ubuntu.com/ubuntu bionic/multiverse amd64 Packages
        100 /var/lib/dpkg/status

Thanks.

[Andreas Beckmann (anbe)]

This tree contains everything needed by clang++ to be accepted as an argument to --cuda-path, existence of empty directories is sufficient, the binaries and libraries are found in standard locations.

nvidia-cuda-toolkit (8.0.61-3) unstable; urgency=medium
...
  * Add monolithic cuda tree shim in /usr/lib/cuda/.
    Use for 'clang++ --cuda-path=/usr/lib/cuda'. (LP: #1706326)