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原创 记录opencv库的调用错误

记录opencv库的调用错误 １．　背景 系统：Ubuntu18.06 环境：cmake-3.10, gcc-7.5.0 目的：调用一个动态链接库a.so，该库引用了opencv-2.4.5相关库. ２．　问题 上述a.so历史久远，且不方便获取源码，调用时提示opencv相关函数undefined Line1: undefined reference to cv::KalmanFilter::KalmanFilter(int, int, int, int)' Line2: undefined refer