Re: Licensing clarification: Requiring a BSD licensed dist in a Perl licensed dist

Which variant of the BSD license is it? I don't see any license terms in the repo you linked to.

Why is the original BSD license incompatible with the GPL?

Because it imposes a specific requirement that is not in the GPL; namely, the requirement on advertisements of the program. Section 6 of GPLv2 states:

You may not impose any further restrictions on the recipients' exercise of the rights granted herein.

GPLv3 says something similar in section 10. The advertising clause provides just such a further restriction, and thus is GPL-incompatible.

The revised BSD license does not have the advertising clause, which eliminates the problem.

Comment on Re: Licensing clarification: Requiring a BSD licensed dist in a Perl licensed dist

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Re^2: Licensing clarification: Requiring a BSD licensed dist in a Perl licensed dist by stevieb (Canon) on Oct 25, 2018 at 20:04 UTC
Thanks haukex, I've got an email to the fine folks over at Adafruit for clarification on which version of the license was applied to their original code, and even went as far to explain my situation, and how the CPAN ecosystem works (as far as requiring dependencies etc), to see if they can give me direct feedback. I'll update here when I hear back.	[reply]
Re^3: Licensing clarification: Requiring a BSD licensed dist in a Perl licensed dist by haukex (Archbishop) on Oct 25, 2018 at 20:36 UTC
If I had to guess, it looks like this could be the original code. The license is the 3-clause BSD license, without the advertising clause, so AFAICT it should be GPL compatible. But you might also want to try and get confirmation from iliapenev about what the original code was (maybe open an issue).	[reply]
Re^4: Licensing clarification: Requiring a BSD licensed dist in a Perl licensed dist by stevieb (Canon) on Oct 25, 2018 at 20:50 UTC
Thanks again haukex, After I sent the email, I've moved on. I've dealt with them for a few years now (not on legal licensing issues mind you), so I'm confident that they'll do the leg-work here and get me authoritative answers. Doesn't hurt to make them aware that some of their products are accessible via Perl either I don't think.	[reply]