Undefined reference when linking libopencv_gpu.so with OpenCV - c++

Question

I get an error when trying to compile a single .cpp file
Main.cpp:
#include "opencv2/core/core_c.h"
#include "opencv2/core/core.hpp"
#include "opencv2/flann/miniflann.hpp"
#include "opencv2/imgproc/imgproc_c.h"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/video/video.hpp"
#include "opencv2/features2d/features2d.hpp"
#include "opencv2/objdetect/objdetect.hpp"
#include "opencv2/calib3d/calib3d.hpp"
#include "opencv2/ml/ml.hpp"
#include "opencv2/highgui/highgui_c.h"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/contrib/contrib.hpp"
#include <opencv2/gpu/gpu.hpp>
#include <iostream>
int main(int argc, char* argv[])
{
cv::VideoCapture capture = cv::VideoCapture(argv[1]);
cv::gpu::GpuMat gpu_frame,gpu_frame_binary;
cv::Mat frame;
int threshold_value = 80;
int threshold_type = 0;
while (1)
{
capture >> frame;
gpu_frame.upload(frame);
if (!frame.data)
break;
cv::gpu::threshold(gpu_frame, gpu_frame_binary, threshold_value, 255, threshold_type);
}
return 0;
}
OpenCV built with these options:
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_V4L=ON -D WITH_GSTREAMER=ON -D WITH_OPENEXR=ON -D WITH_UNICAP=ON -D BUILD_PYTHON_SUPPORT=ON -D INSTALL_C_EXAMPLES=ON -D BUILD_EXAMPLES=ON -D ENABLE_SSE2=ON -D WITH_CUDA=ON ..
Command used to compile:
g++ -ggdb `pkg-config --cflags opencv` -o main main.cpp `pkg-config --libs opencv` -lopencv_gpu
And the error I get:
/usr/local/lib/libopencv_gpu.so: undefined reference to `cv::gpu::convertTo(cv::gpu::GpuMat const&, cv::gpu::GpuMat&, double, double, CUstream_st*)'
/usr/local/lib/libopencv_gpu.so: undefined reference to `cv::gpu::setTo(cv::gpu::GpuMat&, cv::Scalar_<double>, cv::gpu::GpuMat const&, CUstream_st*)'
/usr/local/lib/libopencv_gpu.so: undefined reference to `cv::gpu::setTo(cv::gpu::GpuMat&, cv::Scalar_<double>, CUstream_st*)'
collect2: error: ld returned 1 exit status
When I try to compile without the -lopencv_gpu option I get errors like:
main.cpp:61: undefined reference to `cv::gpu::threshold(cv::gpu::GpuMat const&, cv::gpu::GpuMat&, double, double, int, cv::gpu::Stream&)'
Any ideas what might be wrong?
P.S It may be important to note that I first built opencv without cuda, then decided that I wanted to try cuda and built it with cuda option on, and did sudo make install. I thought it would overwrite what was previously installed, but maybe something went wrong there?
Running on Fedora 20, with Nvidia card.

Answer 1

I encountered the same problem.
To solve it I just deleted libopencv_gpu.so.2.4 and libopencv_gpu.so.2.4.10 in /usr/local/lib/.