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OpenCV 2.4.6 添加了对 CUDA 5.5 的支持，但尝试构建它失败了。CUDA 是从 Fedora 18 的存储库安装的。没有 CUDA 支持的 OpenCV 本身也运行良好。

[  1%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/gpumat.cpp.o
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp:288:52: error: 'bool cv::gpu::deviceSupports(cv::gpu::FeatureSet)' should have been declared inside 'cv::gpu'
 bool cv::gpu::deviceSupports(FeatureSet feature_set)
                                                    ^
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp: In function 'bool cv::gpu::deviceSupports(cv::gpu::FeatureSet)':
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp:288:6: warning: no previous declaration for 'bool cv::gpu::deviceSupports(cv::gpu::FeatureSet)' [-Wmissing-declarations]
 bool cv::gpu::deviceSupports(FeatureSet feature_set)
      ^
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp: At global scope:
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp:359:49: error: no 'size_t cv::gpu::DeviceInfo::sharedMemPerBlock() const' member function declared in class 'cv::gpu::DeviceInfo'
 size_t cv::gpu::DeviceInfo::sharedMemPerBlock() const
                                                 ^
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp: In function 'void cv::gpu::createContinuous(int, int, int, cv::gpu::GpuMat&)':
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp:794:6: error: redefinition of 'void cv::gpu::createContinuous(int, int, int, cv::gpu::GpuMat&)'
 void cv::gpu::createContinuous(int rows, int cols, int type, GpuMat& m)
      ^
In file included from /home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp:44:0:
/home/lucky/programming/sphinx/build/output/include/opencv2/core/gpumat.hpp:551:17: error: 'void cv::gpu::createContinuous(int, int, int, cv::gpu::GpuMat&)' previously defined here
     inline void createContinuous(int rows, int cols, int type, GpuMat& m)
                 ^
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp: In function 'void cv::gpu::ensureSizeIsEnough(int, int, int, cv::gpu::GpuMat&)':
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp:806:6: error: redefinition of 'void cv::gpu::ensureSizeIsEnough(int, int, int, cv::gpu::GpuMat&)'
 void cv::gpu::ensureSizeIsEnough(int rows, int cols, int type, GpuMat& m)
      ^
In file included from /home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp:44:0:
/home/lucky/programming/sphinx/build/output/include/opencv2/core/gpumat.hpp:559:17: error: 'void cv::gpu::ensureSizeIsEnough(int, int, int, cv::gpu::GpuMat&)' previously defined here
     inline void ensureSizeIsEnough(int rows, int cols, int type, GpuMat& m)
                 ^
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp: In function 'cv::gpu::GpuMat cv::gpu::allocMatFromBuf(int, int, int, cv::gpu::GpuMat&)':
/home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp:831:8: error: redefinition of 'cv::gpu::GpuMat cv::gpu::allocMatFromBuf(int, int, int, cv::gpu::GpuMat&)'
 GpuMat cv::gpu::allocMatFromBuf(int rows, int cols, int type, GpuMat &mat)
        ^
In file included from /home/lucky/programming/sphinx/build/3rdparty/opencv/opencv-2.4.6.1/modules/core/src/gpumat.cpp:44:0:
/home/lucky/programming/sphinx/build/output/include/opencv2/core/gpumat.hpp:567:19: error: 'cv::gpu::GpuMat cv::gpu::allocMatFromBuf(int, int, int, cv::gpu::GpuMat&)' previously defined here
     inline GpuMat allocMatFromBuf(int rows, int cols, int type, GpuMat &mat)
                   ^
At global scope:
cc1plus: warning: unrecognized command line option "-Wno-unnamed-type-template-args" [enabled by default]
make[2]: *** [modules/core/CMakeFiles/opencv_core.dir/src/gpumat.cpp.o] Error 1
make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2
make: *** [all] Error 2

有没有办法解决这个问题？还是新版本的 GCC 有问题？

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1 回答 1

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@jet47 似乎选择不在评论中回复我的请求，所以我发布了这个答案，以便我们可以称这个问题为已回答（显然已经在评论中。）

如果遇到此类问题，请确保您只安装了一个 OpenCV 版本。如果您找到除预期版本之外的其他已安装版本，请将其删除。

于 2013-08-08T21:29:29.247 回答