[jira] [Created] (ARROW-16462) [C++] CMake cannot find CUDA toolkit

["Antoine Pitrou (Jira)" <ji...@apache.org>]

Antoine Pitrou created ARROW-16462:
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             Summary: [C++] CMake cannot find CUDA toolkit
                 Key: ARROW-16462
                 URL: https://issues.apache.org/jira/browse/ARROW-16462
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++, GPU
            Reporter: Antoine Pitrou


For some reason, after a conda update it seems that CMake is not able to find the CUDA toolkit anymore:
{code}
-- Unable to find cudart library.
CMake Error at /home/antoine/miniconda3/envs/pyarrow/share/cmake-3.23/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
  Could NOT find CUDAToolkit (missing: CUDA_CUDART) (found version
  "10.1.243")
Call Stack (most recent call first):
  /home/antoine/miniconda3/envs/pyarrow/share/cmake-3.23/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
  /home/antoine/miniconda3/envs/pyarrow/share/cmake-3.23/Modules/FindCUDAToolkit.cmake:818 (find_package_handle_standard_args)
  src/arrow/gpu/CMakeLists.txt:40 (find_package)


-- Configuring incomplete, errors occurred!
{code}

which is weird as the CUDA toolkit is installed as a Ubuntu package.



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