How to use CMake to build a Qt Plugin ?

[mistralegna]

Hello guys !

I would like to use CMake instead of QMake in order to build a Qt Plugin. The plugin is correctly built when I use QMake. However, when using CMake, I get the following error :

.../src/PluginName.hpp:16: Parse error at "IID"

Where this line is the following:

Q_PLUGIN_METADATA(IID "ID OF THE INTERFACE")

My header declares those three lines:

Q_OBJECT
Q_PLUGIN_METADATA(IID "ID OF THE INTERFACE")
Q_INTERFACES(NameOfTheInterface)

It seems that moc doesn't parse correctly the header. I think I don't pass the correct options to moc in my CMakeLists.txt.

In CMakeLists.txt, I already tried:

1. To use qt5_wrap_cpp with the headers declaring the macro Q_OBJECT
2. To set CMAKE_AUTOMOC to ON
3. To set AUTOMOC to ON

All of these always end with the same error (Parse error at IID).

Thank you for your time!