fix build with recent opencv-ukui-screensaver-AtomGit

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已开启

fix build with recent opencv #76

Funda Wang创建于 8月31日从fundawang/ukui-screensaver： master 合入到 src-openeuler/ukui-screensaver： master

fix build with recent opencv #76

已开启

Funda Wang创建于 8月31日

从fundawang/ukui-screensaver master合入到src-openeuler/ukui-screensaver master