在Qt Creator中进行编译时在Qt中出现Libvirt错误

Question

Why is it that i get this error

error: undefined reference to `virConnectOpen'

whenever I compile it and many other functions too?

After some research I found this: http://comments.gmane.org/gmane.comp.emulators.libvirt/62812
but I don't know how to include that -lvirt option for gcc in Qt Creator.

Answer 1

Assuming you have a qmake project, open the .pro file, and this line to include that library:

LIBS += -lvirt

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Also, you can look at the actual gcc compile commands in the Compile Output view, which you can select from the bottom of the screen. After adding that, you should see -lvirt added to the link command (last gcc or g++ command in the output). It's useful to learn how to look at that output, when solving problems like this, where you need to get some options added for the compiler or linker, and want to see what options are actually given to it.