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#define to compile 6410 or PC appDEFINES += OK6410contains(DEFINES,OK6410){    INCLUDEPATH += /usr/local/arm/opencv/include    LIBS += -L/usr/local/arm/opencv/lib \            -lopencv_core \            -lopencv_highgui \            -lopencv_imgproc \            -lopencv_photo \            -lopencv_ml \            -lopencv_video}else{    INCLUDEPATH += /usr/local/include/opencv4 \            /usr/local/include/opencv4/opencv2    LIBS += /usr/local/lib/libopencv_highgui.so \        /usr/local/lib/libopencv_core.so \        /usr/local/lib/libopencv_imgproc.so \        /usr/local/lib/libopencv_imgcodecs.so\        /usr/local/lib/libopencv_ml.so\        /usr/local/lib/libopencv_videoio.so    LIBS += -lSDL}

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