• 版本、环境信息：
     1）PaddlePaddle版本：1.6.3.post97
     2）CPU：
     3）GPU：K80、CUDA9.0、CUDNN7.1.4
     4）系统环境：ubuntu16.04，python3.7和python2.7，gcc4.8.5，cmake 3.5.1

• 安装方式信息：
  1）pip安装：python3 -m pip install paddlepaddle-gpu==1.6.3.post97 -i https://mirror.baidu.com/pypi/simple

• 复现信息：如为报错，请给出复现环境、复现步骤
  根据 https://github.com/PaddlePaddle/PaddleDetection/blob/release/0.1/inference/docs/linux_build.md 教程里面的方法，编译安装完opencv后，编译paddleDetection的C++预测库报错。

opencv的cmake命令如下：

预测库的cmake命令如下：

• 问题描述：请详细描述您的问题，同步贴出报错信息、日志/代码关键片段
  在C++预测库cmake成功完成后，使用make命令报错如下，显示安装的opencv中少个文件：
  

opencv之前已经成功安装在/home/wushengjian/release-p-test/opencv如下：

另外在make预测库的时候，还会出现很多warning如下：

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-GPU: including CUDA/CUDNN version
-OS Platform (eg. Mac OS 10.14)
-Python version

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