Compiling errors (without ROS)

[Jamaslab]

Hello,
I get another error, but this one is maybe my fault.

/usr/bin/ld: CMakeFiles/test_depth_filter.dir/test/test_depth_filter.cpp.o: undefined reference to symbol 'cv::imread(std::basic_string<char, std::char_traits, std::allocator > const&, int)'
/usr/bin/ld: note: 'cv::imread(std::basic_string<char, std::char_traits, std::allocator > const&, int)' is defined in DSO /usr/lib/libopencv_highgui.so.2.3 so try adding it to the linker command line
/usr/lib/libopencv_highgui.so.2.3: could not read symbols: Invalid operation
collect2: ld returned 1 exit status

Am I using a wrong version of libopencv?

Thank you very much
Giacomo

[Jamaslab]

Solved,
there was a wrong linking to OpenCV in the CMakeLists.txt

At line 79 the correct linking is
${OpenCV_LIBS}
instead of
${OpenCV_LIBRARIES}

[pablospe]

That is correct, it can be checked here:

http://docs.opencv.org/doc/tutorials/introduction/linux_gcc_cmake/linux_gcc_cmake.html?highlight=OpenCV_LIBS#create-a-cmake-file

I think ${OpenCV_LIBRARIES} was also used in older versions , but not sure.