CC-BY-SA is a Creative Commons license with a copyleft clause - if you derive something from it, you must also provide the derivative under the same license if you distribute it. The relevant clause is here:
ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
In the actual license, it refers to derivation as adapted material:
Adapted Material means material subject to Copyright and Similar Rights that is derived from or based upon the Licensed Material and in which the Licensed Material is translated, altered, arranged, transformed, or otherwise modified in a manner requiring permission under the Copyright and Similar Rights held by the Licensor. For purposes of this Public License, where the Licensed Material is a musical work, performance, or sound recording, Adapted Material is always produced where the Licensed Material is synched in timed relation with a moving image.
So does inclusion in a software package turn the software into adapted material?
- If I include a CC-BY-SA licensed image in the software, do I need to share just the image or does the entire software come under CC-BY-SA?
- What if I make modifications to this image, what do I need to share?