Firebreath project with objective-c++

I need to incude some objective c code into my Firebreath project. The problem is that the project is in c++ lenguage. So I am trying with objective-c++ code. The plugin project name is "OpenOnDesktopPlugin", I renamed the "OpenOnDesktopPluginAPI.cpp" to "OpenOnDesktopPluginAPI.mm" and I created an objective-c class called "DistributedNotification" and I change the .m extension to .mm I can开发者_StackOverflow中文版´t init my objective-c class from "OpenOnDesktopPluginAPI.mm", I get some compilation errors:

Undefined symbols for architecture x86_64: "_OBJC_CLASS_$_DistributedNotification", referenced from: objc-class-ref in OpenOnDesktopPluginAPI.o ld: symbol(s) not found for architecture x86_64 collect2: ld returned 1 exit status

and the other error:

Undefined symbols for architecture i386: ".objc_class_name_DistributedNotification", referenced from: pointer-to-literal-objc-class-name in OpenOnDesktopPluginAPI.o ld: symbol(s) not found for architecture i386 collect2: ld returned 1 exit status

Anyone can help me?

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The source code file with the DistributedNotification class in it is not being linked. Make sure it is in your target's list of compiled files.