Bug#852746:

[Lukáš Durďák]

Hi, I am unsure which bug report is correct for this as there is similar
one #898033 and #954849 but I could confirm the problem is back since
approximately May 2020 up to today:
It could be basically any program using opencl, I've picked the clinfo as
an example:

$ clinfo
: CommandLine Error: Option 'polly' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options

$ sudo apt remove mesa-opencl-icd
... package mesa-opencl-icd removed...

$ dpkg -l | grep opencl
ii  intel-opencl-icd                      20.13.16352-1
 amd64        Intel graphics compute runtime for OpenCL
ii  libopencl-clang10                     10.0.0-2
amd64        thin wrapper for clang
ii  libopencl1-amdgpu-pro:amd64           20.20-1098277
 amd64        AMD OpenCL ICD Loader library
rc  mesa-opencl-icd:amd64                 20.1.4-1
amd64        free implementation of the OpenCL API -- ICD runtime
ii  ocl-icd-libopencl1:amd64              2.2.12-4
amd64        Generic OpenCL ICD Loader
ii  ocl-icd-opencl-dev:amd64              2.2.12-4
amd64        OpenCL development files
ii  opencl-c-headers                      3.0~2020.05.12-g5cc337c-1
 all          OpenCL (Open Computing Language) C header files
ii  opencl-clhpp-headers                  2.2.0~~2.0.11+git9-g0192662-1
 all          C++ headers for OpenCL development
ii  opencl-headers                        3.0~2020.05.12-g5cc337c-1
 all          OpenCL (Open Computing Language) header files
ii  opencl-orca-amdgpu-pro-icd:amd64      20.20-1098277
 amd64        non-free AMD OpenCL ICD Loaders

$ clinfo
Number of platforms                               1
  Platform Name                                   AMD Accelerated Parallel
Processing
  Platform Vendor                                 Advanced Micro Devices,
Inc.
  Platform Version                                OpenCL 2.1 AMD-APP
(3110.6)
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd
cl_amd_event_callback cl_amd_offline_devices
  Platform Host timer resolution                  1ns
  Platform Extensions function suffix             AMD

  Platform Name                                   AMD Accelerated Parallel
Processing


BR//L.D.
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