在ubuntu 16.04上编译opencv 3链接错误:/usr/lib/x86_64 linux-gnu/libsoxr.so。0:“GOMP_parallel@GOMP_4.0”的未定义引用

Trying to install openCV 3.1, CUDA 8.0.44 on Ubuntu 16.04 by building from the source.

尝试安装openCV 3.1, CUDA 8.0.44在Ubuntu 16.04上从源代码构建。

The following are the errors I met during the compilation.

以下是我在编译期间遇到的错误。

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

I consider the issue is related to the openMP or the ld configuration.

我认为这个问题与openMP或ld配置有关。

The following are the detailed configuration:

具体配置如下:

LD_LIBRARY_PATH:
LD_LIBRARY_PATH:

/usr/lib/nvidia-current:/usr/local/cuda/lib64:/usr/local/cuda/lib

/usr/lib/nvidia-current:/ usr /地方/ cuda / lib64:/ usr /地方/ cuda / lib

GCC version: 5.4.0

GCC版本:5.4.0
CMake configuration command:

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" ..

cmake -D CMAKE_BUILD_TYPE=发布-D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D WITH_V4L=ON -D WITH_QT=ON -D WITH_CUBLAS=ON -DCUDA_NVCC_FLAGS="-D_FORCE_INLINES"

1 个解决方案

#1

Firstly, I thought this problem was caused because I installed Anaconda and put it into my PATH.

首先，我认为这个问题是由于我安装了蟒蛇并把它放进了我的路径。

Different GCC version are used between Anaconda and System default. For Ubuntu 16.04, the GCC version is 5.4.0 however Anaconda only provides GCC 4 (I can't remember it's 4.4 or 4.8). Although I used the system default gcc to compile opencv, it somehow will find the lib located in Anaconda, which caused the problem.

在Anaconda和系统默认之间使用不同的GCC版本。对于Ubuntu 16.04, GCC版本是5.4.0，但是Anaconda只提供GCC 4(我不记得是4.4还是4.8)。虽然我使用系统默认的gcc来编译opencv，但是它会以某种方式找到位于Anaconda中的lib，这导致了问题。

I think there are two ways to solve this issue.

我认为有两种方法可以解决这个问题。

Method 1: Pass the option -D WITH_OPENMP=ON, or, when using cmake-gui, check the choice WITH-OPENMP.
方法1:使用_openmp =传递选项-D，或者在使用cmake-gui时，使用- openmp检查选项。
Method 2: Delete Anaconda from your $PATH and LD_LIBRARY_PATH.
方法2:从$PATH和LD_LIBRARY_PATH中删除蟒蛇。

#1