Originally Posted by losinggeneration
Updated
No use of copyrighted images, sounds, or code without explicit permission from the author (this can include the author having released the materials under a license which allows you to reuse it in the manner in which you are).
No ports allowed without explicit permission of the author (also includes license. Please check the license carefully as some otherwise 'open source' licenses specifically bar the use for profit) GPL ports are allowed without the author premission.
So I also thought since ports of GPL code is allowed without author permission using GPL libraries wouldn't be different.