d661843f_cklist___Joomla__Documentation_To_ponderate_Publishable_
[Item] 10 [What?] Bridges to a non gpl product [Publishable?] 
Only if: The non GPL product works independently from Joomla Extension its GPL and created for Joomla Clear statement that the extension requires a non GPL product to work See also: C2.1 - Will it be listed in the JED? (8- Extension specific for an extension not listed at JED)
JED Entries License Checklist - Joomla! Documentation