opencv_createsamples中的链接问题

Question

我正在NVidia/Cuda:7.5-cudnn4-发展-中心7 Docker容器中设置OpenCV2.4.10。运行make install几乎可以完成，然后我得到以下错误：

[ 99%] Built target opencv_haartraining_engine
Linking CXX executable ../../bin/opencv_createsamples
CMakeFiles/opencv_createsamples.dir/createsamples.cpp.o: In function `main':
createsamples.cpp:(.text.startup.main+0x2cb): undefined reference to `JpgDatasetGenerator::JpgDatasetGenerator(char const*)'
createsamples.cpp:(.text.startup.main+0x31f): undefined reference to `DatasetGenerator::create(char const*, int, int, char const*, int, int, int, double, double, double, bool, int, int)'
createsamples.cpp:(.text.startup.main+0x773): undefined reference to `PngDatasetGenerator::PngDatasetGenerator(char const*)'
createsamples.cpp:(.text.startup.main+0x7af): undefined reference to `cvCreateTrainingSamplesFromInfo(char const*, char const*, int, int, int, int)'
createsamples.cpp:(.text.startup.main+0x814): undefined reference to `cvCreateTrainingSamples(char const*, char const*, int, int, char const*, int, int, int, double, double, double, bool, int, int)'
createsamples.cpp:(.text.startup.main+0x857): undefined reference to `cvShowVecSamples(char const*, int, int, double)'
collect2: error: ld returned 1 exit status
make[2]: *** [bin/opencv_createsamples] Error 1
make[1]: *** [apps/haartraining/CMakeFiles/opencv_createsamples.dir/all] Error 2
make: *** [all] Error 2

我能够让opencv 2.4.10在CentOS 6中使用CUDA7.0，但是这个问题出现在CentOS 7和CUDA 7.5中。

Answer 1

我仍然不知道为什么这个步骤在这里是必要的，而不是在我的CentOS 6/CUDA7.0设置中；我还感到奇怪的是，直到目前为止，这个修复还没有必要进入make install过程，但是解决方案很简单。

make clean

然后

make install