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  1. Funtoo Linux
  2. FL-6540

dev-util/nvidia-cuda-toolkit doesn't support gcc9

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    • Resolution: Fixed
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      After installing nvidia-cuda-toolkit on 1.4 beta, the opencv build fails as follows:

      In file included from /opt/cuda/include/cuda_runtime.h:83,
                       from <command-line>:
      /opt/cuda/include/crt/host_config.h:129:2: error: #error -- unsupported GNU version! gcc versions later than 8 are not supported!
        129 | #error -- unsupported GNU version! gcc versions later than 8 are not supported!
            |  ^~~~~
      CMake Error at cuda_compile_1_generated_gpu_mat.cu.o.Gentoo.cmake:221 (message):
        Error generating
        /var/tmp/portage/media-libs/opencv-3.4.6/work/opencv-3.4.6_build/modules/core/CMakeFiles/cuda_compile_1.dir/src/cuda/./cuda_compile_1_generated_gpu_mat.cu.o 

      This error is actually from an include that is part of nvidia-cuda-toolkit, so we should look at upgrading it for 1.4 beta.

            drobbins drobbins
            drobbins drobbins
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