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I was gradually coming to that conclusion. I also tried with Visual Studio 2013 and eventually discovered that it also isn't compatible with the released OpenCV libraries, so that requires a build as well.
Thanks for your help.

Thanks for your reply. I removed the \bin and still got the same undefined error messages. I also tried with a filename which doesn't exist and then get the messages described above, e.g. cannot find -lopencv_core2411d.. It appears to be finding the library files but is then unable to find the references within them.

I have the Includes in the C++ for opencv2/core/core.hpp and opencv2/highgui/highgui.hpp. and for the compile, I include C:/Tools/opencv/build/include. On the link I include ${OPENCV_DIR}/lib where OPENCV_DIR is: C:\Tools\opencv\build\x64\vc12

I have followed the instructions to set up OpenCv from this document and I am trying to use the pre-built libraries with netbeans and the MinGW tool collection.

My simple C++ OpenCV program sees the headers / includes for: opencv2/core/core.hpp and opencv2/highgui/highgui.hpp without any compiler flags.

However I get the following errors from the build:

g++ -m64    -o dist/Debug/MinGW-Windows/opencvtester build/Debug/MinGW-Windows/main.o -LC:\Tools\opencv\build\x64\vc12/temp/lib -lopencv_core2411d -lopencv_highgui2411d -lopencv_legacy2411d -lopencv_ml2411d

C:\Dev\opencvtester/main.cpp:13: undefined reference to `cv::Mat::Mat(_IplImage const*, bool)'
C:\Dev\opencvtester/main.cpp:21: undefined reference to `cv::namedWindow(std::string const&, int)'
C:\Dev\opencvtester/main.cpp:22: undefined reference to `cv::_InputArray::_InputArray(cv::Mat const&)'
C:\Dev\opencvtester/main.cpp:22: undefined reference to `cv::imshow(std::string const&, cv::_InputArray const&)'
C:\Dev\opencvtester/main.cpp:24: undefined reference to `cv::waitKey(int)'

When I remove the netbeans reference to the link library, I get different errors:

c:/Tools/qt/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.8.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lopencv_core2411d
c:/Tools/qt/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.8.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lopencv_highgui2411d
c:/Tools/qt/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.8.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lopencv_legacy2411d
c:/Tools/qt/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.8.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lopencv_ml2411d

So I assume the build is finding the library files in opencv/build/x64/vc10/bin but somehow not finding the above references.

I would be grateful if someone could point me at the next steps to take.

Thanks.