出现opencv链接的问题原因：

1. 路径设置不正确，caffe会优先搜索Makefile.config里面的环境设置

2. anaconda2装的opencv和配置的opencv路径不一致

比如，我在 安装anaconda2时配置了opencv3，bashrc里面设置了opencv3的路径，但是Makefile.config里面设置了opencv2的路径，程序会直接链接到opencv2上，所以会导致一堆opencv的错误

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