I created WordPress theme which I wanted to publish under GPL. However, one supporting file (for the drop-down menu) is licensed under Creative Commons Attribution (BY-2.0) license.
My questions is: can the theme bear the GPL license then?
What I uncovered through searching is that CC licenses are not GPL compatible, but that case does not apply here.
I don't publish the theme as CC-BY. Theme would be GPLed while it's using one file under CC-BY license. Does GPL allows something like this? This is basically the question for lawyers :), someone who understand the ins and outs of GPL. Does anyone know?