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Thanks. I installed the CUDA 5.5 Toolkit and it compiled with out problems. Because I have installed gcc 4.6, I tried to use the flags with CMake but I got an error. Would you mind to post the flags to compile with gcc 4.6 . Thanks

After compile opencv with standard options, make will abort with error 2 and the following message is displayed on sdte

Built target pch_Generate_opencv_core [ 0%] Building NVCC (Device) object modules/core/CMakeFiles/cuda_compile.dir/src/cuda/./cuda_compile_generated_matrix_operations.cu.o In file included from /usr/lib/nvidia-cuda-toolkit/include/cuda_runtime.h:59:0,from <command-line>:0: /usr/include/host_config.h:82:2: error: #error -- unsupported GNU version! gcc 4.7 and up are not supported! CMake Error at cuda_compile_generated_matrix_operations.cu.o.cmake:208 (message): Error generating /home/me/Desktop/opencv-.4.6.1/build/modules/core/CMakeFiles/cuda_compile.dir/src/cuda/./cuda_compile_generated_matrix_operations.cu.o make[2]: * [modules/core/CMakeFiles/cuda_compile.dir/src/cuda/./cuda_compile_generated_matrix_operations.cu.o] Error 1 make[1]: [modules/core/CMakeFiles/opencv_core.dir/all] Error 2 make: ** [all] Error 2

The toolkit and cuda was installed using a ppa and it is working well with the samples. https://launchpad.net/ubuntu/+source/nvidia-cuda-toolkit

Here is the compilers version of the box.

g++ --version g++ (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3

gcc --version gcc (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3

nvcc --version nvcc: NVIDIA (R) Cuda compiler driver Copyright (c) 2005-2012 NVIDIA Corporation Built on Fri_Sep_21_17:28:58_PDT_2012 Cuda compilation tools, release 5.0, V0.2.1221

uname -a Linux 3.8.0-30-generic #44-Ubuntu SMP Thu Aug 22 20:52:24 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=13.04 DISTRIB_CODENAME=raring DISTRIB_DESCRIPTION="Ubuntu 13.04"

Pls, any hint will be appreciated.

Thanks