/usr/lib/libcxcore.so.2.1: could not read symbols: Invalid operation 解决方法

开发环境：ubuntu11.10 + qt4 + opencv2.1 (其中的opencv也是直接使用命令行下载的： sudo apt-get install libcv2.1 libcvaux2.1 libcvaux-dev libcv-dev libhighgui* )

gcc laplace.c -o laplace -lcv -lhighgui

编译一个与OPENCV有关的程序，结果遇到下列错误：

/usr/bin/ld: /tmp/ccZFKumW.o: undefined reference to symbol 'cvGetCols'

/usr/bin/ld: note: 'cvGetCols' is defined in DSO /usr/lib/libcxcore.so.2.1 so try adding it to the linker command line

/usr/lib/libcxcore.so.2.1: could not read symbols: Invalid operation

collect2: ld 返回 1

解决办法：

多加一个 -lcxcore 就行了, 即：

gcc laplace.c -o laplace -lcv -lhighgui -lcxcore