Libopencv_calib3d: undefined reference to `std :: __ throw_out_of_range_fmt (char const *, ...) @ GLIBCXX_3.4.20 '

Question

I mentioned this to install OpenCV on my Raspberry Pi 2 (which works on the latest Raspbian with the 4.1.7-v7 kernel release). I was unable to install libgtk2.0-dev due to dependency errors, but I was able to install OpenCV without any errors.

I am trying to cross-compile simple OpenCV code in Qt for my raspberry Pi 2. But at the linker stage, I get the following error:

/usr/local/lib/libopencv_calib3d.so: undefined reference to
std::__throw_out_of_range_fmt(char const*, ...)@GLIBCXX_3.4.20

My code is:

myFunc {
    VideoCapture cap(0);
    if (!cap.isOpened()) {
        qDebug() << "Cannot open the video cam";
        return;
    }

    double dWidth = cap.get(CV_CAP_PROP_FRAME_WIDTH);
    double dHeight = cap.get(CV_CAP_PROP_FRAME_HEIGHT);
    qDebug() << "Frame size : " << dWidth << " x " << dHeight;
    namedWindow("MyVideo",CV_WINDOW_AUTOSIZE);

    while (1) {
        Mat frame;
        bool bSuccess = cap.read(frame);

         if (!bSuccess) {
             qDebug() << "Cannot read a frame from video stream";
             break;
         }

         imshow("MyVideo", frame);

         if (/*condition*/) {
            break; 
         }
    }
}

I tried changing the order in which the libraries are linked. But the error still persists. My file .prolooks like this:

QT       += core gui quick xml widgets
TARGET = myApp
TEMPLATE = app

    QMAKE_CXXFLAGS += -I/mnt/rasp-pi-rootfs/usr/include \
                      -I/mnt/rasp-pi-rootfs/usr/include/libxml2 \
                      -I/mnt/rasp-pi-rootfs/usr/include/glib-2.0/glib \
                      -I/mnt/rasp-pi-rootfs/usr/include/glib-2.0 \
                      -I/mnt/rasp-pi-rootfs/usr/lib/arm-linux-gnueabihf/glib-2.0 \
                      -I/mnt/rasp-pi-rootfs/usr/lib/arm-linux-gnueabihf/glib-2.0/include \
                      -I/mnt/rasp-pi-rootfs/usr/include/gstreamer-1.0 \
                      -I/mnt/rasp-pi-rootfs/usr/local/include \

    QMAKE_CXXFLAGS += -Wno-psabi

    QMAKE_LIBDIR_FLAGS += -L/mnt/rasp-pi-rootfs/usr/lib \
                          -L/mnt/rasp-pi-rootfs/lib \
                          -L/mnt/rasp-pi-rootfs/usr/local/lib \

    QMAKE_LFLAGS   += -lgmodule-2.0 \
                      -lz \
                      -lxml2 \
                      -lgthread-2.0 \
                      -lrt \
                      -lglib-2.0 \
                      -lpthread \
                      -lgstreamer-1.0 \
                      -lgobject-2.0 \
                      -lopencv_calib3d -lopencv_contrib -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_highgui -lopencv_imgproc -lopencv_legacy -lopencv_ml -lopencv_objdetect -lopencv_ts -lopencv_video \

SOURCES += /* all .cpp files */

HEADERS += /* all .h files */

How can i solve this?

UPDATE

I managed to install libgtk2.0-dev and compile OpenCV again. But the error remains.

Answer 1

. , https://github.com/raspberrypi/tools , , , , , , predates gcc/g++ 4.9.

, Jessie ( Raspbian 4.1.X) gcc/g++ 4.9 , OpenCV STL, . , , gcc/g++ 4.9, .

, , 4.9, , Rasbian, gcp. 4.6.

OpenCV : https://solderspot.wordpress.com/2016/02/04/cross-compiling-for-raspberry-pi-part-ii.

, .