我尝试通过源代码构建的方式在Ubuntu 16.04上安装openCV 3.1和CUDA 8.0.44,以下是编译过程中遇到的错误信息:
Scanning dependencies of target opencv_test_video
[ 37%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/test_optflowpyrlk.cpp.o
[ 37%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/test_accum.cpp.o
[ 37%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/test_kalman.cpp.o
[ 38%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/test_ecc.cpp.o
[ 38%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/test_tvl1optflow.cpp.o
[ 38%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/test_main.cpp.o
[ 38%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/test_camshift.cpp.o
[ 38%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/ocl/test_optflowpyrlk.cpp.o
[ 38%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/ocl/test_optflow_farneback.cpp.o
[ 38%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/ocl/test_bgfg_mog2.cpp.o
[ 38%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/ocl/test_optflow_tvl1flow.cpp.o
[ 38%] Building CXX object modules/video/CMakeFiles/opencv_test_video.dir/test/test_estimaterigid.cpp.o
[ 38%] Linking CXX executable ../../bin/opencv_test_video
//usr/lib/x86_64-linux-gnu/libsoxr.so.0: undefined reference to `GOMP_parallel@GOMP_4.0'
collect2: error: ld returned 1 exit status
modules/video/CMakeFiles/opencv_test_video.dir/build.make:391: recipe for target 'bin/opencv_test_video' failed
make[2]: *** [bin/opencv_test_video] Error 1
CMakeFiles/Makefile2:3336: recipe for target 'modules/video/CMakeFiles/opencv_test_video.dir/all' failed
make[1]: *** [modules/video/CMakeFiles/opencv_test_video.dir/all] Error 2
Makefile:160: recipe for target 'all' failed
make: *** [all] Error 2
我认为这个问题与openMP或ld配置有关。
以下是详细配置:
- LD_LIBRARY_PATH:
/usr/lib/nvidia-current:/usr/local/cuda/lib64:/usr/local/cuda/lib
GCC版本:5.4.0
CMake配置命令:
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D WITH_V4L=ON -D WITH_QT=ON -D WITH_OPENGL=ON -D WITH_CUBLAS=ON -DCUDA_NVCC_FLAGS="-D_FORCE_INLINES" ..
-D WITH_OPENMP=ON
是相应的选项,可以解决问题。 - oulenzcmake -D CMAKE_BUILD_TYPE = RELEASE -D CMAKE_INSTALL_PREFIX = /usr/local -D WITH_TBB = ON -D WITH_OPENMP = ON -D BUILD_NEW_PYTHON_SUPPORT = ON -D WITH_V4L = ON -D INSTALL_C_EXAMPLES = ON -D INSTALL_PYTHON_EXAMPLES = ON -D BUILD_EXAMPLES = ON -D WITH_QT = ON -D WITH_OPENGL = ON -D WITH_VTK = ON -D WITH_GTK = ON WITH_GTK_2_X = OFF -D WITH_CUBLAS = ON -D WITH_NVCUVID = ON -D WITH_LAPACK = ON -D OPENCV_EXTRA_MODULES_PATH = /my/opencv_contrib/modules/path ..
- David Jung