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Bug#732440: ghostscript: Error: /typecheck in /findfont



Hi Chris,

Quoting Chris Liddell (2015-01-08 08:31:45)
> On 07/01/15 21:06, Didier 'OdyX' Raboud wrote:
>> Le mercredi, 7 janvier 2015, 12.17:43 Jonas Smedegaard a écrit :
>>>> This is fixed in upstream's 9.14. I'll see with the release team if 
>>>> we can backport this into Jessie.
>>>
>>> Great.  But what about its licensing?  I guess upstream treat it as 
>>> AGPL, so we may risk disagreeing with them if we choose to ignore 
>>> that - e.g. by treating it as too small to be copyright-protected.
>> 
>> Best is to ask I guess. Let's try to see what the upstream author of 
>> the patch says. Hereby CC'ing him.
>> 
>> Chris: We (Debian) want to include your patch for the Ghostscript bug 
>> 695031 "don't assume we can read a font file", but we are wondering 
>> about its licensing situation.
>> 
>> Debian is shipping ghostscript 9.06, licensed under GPL-3, but you 
>> included this patch in ghostscript 9.14, which is licensed under 
>> AGPL.
>> 
>> We have three options:
>> 
>> a) consider your patch as too small to be copyright-protected. This
>>    would allow us to include is in GPL'd ghostscript 9.06. It'd be 
>>    nice to have your confirmation on this though.
>> b) get your patch also GPL-licensed, allowing us to include it in 
>>    GPL'd ghostscript 9.06. It'd be mandatory to have an explicit 
>>    statement from you (as author of the patch) on that.
>> c) None of the above, leaving the bug open for Debian Jessie, thereby
>>    leaving our users with a bug in our next stable release. Needless 
>>    to say we'd prefer any of the two above solutions.
>> 
>> Cheers, and thanks in advance,
>
> So, for clarity, that will be this commit:
>
> http://git.ghostscript.com/?p=ghostpdl.git;a=blobdiff;f=gs/Resource/Init/gs_fonts.ps;h=8ab6872e
>
> (or, for convenience: http://tinyurl.com/pvr4acp )
>
> We'd have no problem with you patching an older, non-AGPL release with 
> that - we'd regard it as being covered by your "a" case above. It's 
> also a sufficiently obvious solution that any competent Postscript 
> programmer would almost certainly come up with the same solution, 
> which would make copyright enforcement decidedly questionable, too.
>
> So go ahead and use that patch.
>
> In the interests of the usual legal disclaimers, though, this only 
> applies to the particular patch linked above, so any other patches in 
> the future will need to be considered on a case-by-case basis.

Thanks, Chris, for taking the time with this.

Your judgement makes good sense, and is obviously helpful for us.


 - Jonas

-- 
 * Jonas Smedegaard - idealist & Internet-arkitekt
 * Tlf.: +45 40843136  Website: http://dr.jones.dk/

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