Re: [cups-devel] CUPS License Change Coming

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On Wed, Nov 08, 2017 at 02:58:37PM -0500, Michael Sweet wrote:
> IANAL and am not comfortable getting into a legal debate about what=20
> constitutes an OS-supplied library or whether GPL2-only software can=20
> "legally" link against libcups.  But as an example, CUPS had to deal=20
> with this when linking against OpenSSL in the past by adding an=20
> exception to the license file saying "it is OK to link CUPS against=20
> OpenSSL"...  I don't see why that approach would not work for any=20
> GPLv2-only project, if there was any question about CUPS being a=20
> standard OS library after almost 20 years of use...

I don't want to get into a debate here either, but suffice it to say=20
that it's not entirelty clear whether or not the "OS Exception" to the=20
GPLv2 applies to other parts of the same operating system.  (ie, a=20
typical Linux distribution)

Gutenprint (GPLv2+) is one of those projects impacted by this; our CUPS=20
filters obviously link against libcups today, but this also impacts=20
future plans -- for example that IPP proof-of-concept you and I recently=20
discussed.  Gutenprint had plans to more tightly integrate CUPS into=20
our foundational libraries.  We're still evaluating what this will mean.

> Anyways, I can certainly forward your dual-licensing request to the=20
> appropriate people at Apple, but I'm sure they will want to know which=20
> projects/applications you think will be unable to continue using CUPS,=20
> and why.

If you're going to pass the request to the powers that be at Apple, IMO=20
it would make more sense for the two licenses to be ASL2.0 and LGPLv2=20
(or better yet, LGPLv2+).  That would yield the widest compatibility=20
with other/existing projects.

Thanks,

 - Solomon
--=20
Solomon Peachy			       pizza at shaftnet dot org
Coconut Creek, FL                          ^^ (email/xmpp) ^^
Quidquid latine dictum sit, altum videtur.

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