We are developing and selling FileMaker runtime applications that have the ability to connect to a MySQL server and exchange data with it, using either smartpill's php plugin or the MBS plugin. I am a bit confused about the licence of MySQL in this combination. Though MySQL is a free software, the explanations Oracle gives for their understanding of the GPL licence state:
OEMs, ISVs and VARs that want the benefits of embedding commercial binaries of MySQL software in their commercial applications but do not want to be subject to the GPL and do not want to release the source code for their proprietary applications should purchase a commercial license from Oracle. Purchasing a commercial license means that the GPL does not apply, and a commercial license includes the assurances that distributors typically find in commercial distribution agreements. (MySQL :: Commercial License for OEMs, ISVs and VARs )
Are there "commercial binaries of MySQL software" involved? And if so, who is the one who needs to buy a commercial licence here: FileMaker Inc., the plugin vendors, we, or no one at all?