It does not build correctly when trying to build it against gtk+ 3.10 because it's deprecated.
Obviously this only affect debug builds which disable deprecated symbols...
If Sergio doesn't mind I'll fix this one.
This definitely isn't a problem anymore, we either have GTK_MIN_VERSION set properly or something else to avoid the deprecation warnings. And we aren't going to get rid of GtkAction use in the test, because we plan to support the API indefinitely.