C++ pkg-config 找不到 opencv
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pkg-config can't find opencv
提问by Clement Roblot
I installed opencv on a lubuntu 12.10 distro. Then when I try to compile a code which is using opencv it says it can't find it. So I try in a terminal :
我在 lubuntu 12.10 发行版上安装了 opencv。然后，当我尝试编译使用 opencv 的代码时，它说找不到它。所以我在终端中尝试：
pkg-config --cflags --libs opencv
It answers me that it can't find opencv. But the files are installed in /usr/lib. I don't understand why it can't find them.
它回答我说找不到opencv。但是这些文件安装在 /usr/lib 中。我不明白为什么它找不到它们。
回答by doizuc
You have to put pkg-config --cflags --libs opencvat the end of your g++ line. For example :
您必须放在pkg-config --cflags --libs opencvg++ 行的末尾。例如 ：
g++ test.cpp -o test `pkg-config --cflags --libs opencv`
Compiles
编译
g++ `pkg-config --cflags --libs opencv` test.cpp -o test
Doesn't compile and have undefined reference.
不编译并且有未定义的引用。
