C++ 添加符号时出错：命令行中缺少 DSO
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error adding symbols: DSO missing from command line
提问by user3877872
Trying to use Ogre in the Qt project. Ogre is build succesfully. Running the project it gives me three errors:
尝试在 Qt 项目中使用 Ogre。Ogre 构建成功。运行项目它给了我三个错误：
/usr/lib/x86_64-linux-gnu/libboost_system.so.1.54.0:-1: error: error adding symbols: DSO missing from command line
-1: error: main.o: undefined reference to symbol '_ZN5boost6system15system_categoryEv'
When I searched for the error it says to edit the makefile and adding: LIBS =-lpthread
当我搜索错误时，它说编辑 makefile 并添加：LIBS =-lpthread
but it is already there.
但它已经在那里了。
How to resolve this error?
如何解决此错误？
回答by Kamalpreet Grewal
You need to link boost library in your project.
您需要在项目中链接 boost 库。
Add LIBS += -lboost_systemin your project's pro file.
添加LIBS += -lboost_system项目的 pro 文件。
回答by Hridaynath
In my case: I am using code blocks IDE and having the same error. I resolve it as below:
就我而言：我正在使用代码块 IDE 并遇到相同的错误。我解决它如下：
- In code blocks IDE goto settings > compiler.
- Under the "Linker Settings" tab add path : /usr/lib/x86_64-linux-gnu/libboost_system.so
- 在代码块中，IDE 转到设置 > 编译器。
- 在“链接器设置”选项卡下添加路径：/usr/lib/x86_64-linux-gnu/libboost_system.so
Now build your program again.
现在再次构建您的程序。
Hope this will be usfull.
希望这将是有用的。
