I am not sure if Toby's reply made it to the list.

> Gesendet: Freitag, 03. Februar 2023 um 15:24 Uhr
> Von: "Tobias Frost" <t...@debian.org>
> An: 1030...@bugs.debian.org
> Betreff: [Emc-developers] Bug#1030304: Licensing & copyright issues
>
> Control: severity -1 normal
> 
> On Thu, 2 Feb 2023 12:10:52 +0100 Adam Ant <adam...@engineer.com> wrote:
> > Source: linuxcnc
> > Severity: serious
> 
> (Standard disclaimer: IANAL.)
> 
> > Source files for libnml lack standard Debian or SPDX copyright headers.
> 
> This is nice to have, but it is not a requirement.
> 
>  Also obsolete version of LGPL used.
> 
> Where is this a problem? All LGPL variants a DFSG approved. The license is 
> upstream's *choice*,  
> 
> > 
> > Source files for both the core linuxcnc & libmnl are forked and munged from 
> > a NIST project known as the Enhanced Machine Control (EMC). The source code 
> > for this is public domain. One can NOT take PD
> code, claim copyright, and then slap an arbitrary license on it.
> > 
> > At best, renders the license unenforceable in many jurisdictions, or 
> > illegal in some.
> 
> Public Domain is an accepted as DFSG compatible. As the DFSG-FAQ §15 says:
> "Software placed in the public domain has all the freedoms required by the 
> DFSG, and is free software."
> 
> Where would be distributing PD illegal?
> 
> 
> > Kindly refer to Debian Legal
> 
> This be https://lists.debian.org/debian-legal/2022/12/msg00000.html ?
> 
> You've got an answer from Andrew actually. (which you should have considered 
> as input, when filing this bug.
> In fact, you just filed this bug as if the reponse never happened. That 
> raises some concerns on your behaviour.)
> 
> Let me quote the relevant part for the bug: 
> (https://lists.debian.org/debian-legal/2022/12/msg00001.html)
> 
> > By the same token, anyone rewriting/modifying that code also has copyright.
> > The author of code can apply any license they like (and can distribute the
> > code themselves with no licence or a licence that means that no-one else
> > could ever distribute it because of a conflict of licences).
> 
> And according to a comment in d/copyright, this is exactly what happened.
> 
> (As Andy pointed out, this is not legal advice. Read the whole thread)
> 
> I don't see a (RC) bug for Debian here, sorry. 
> Downgrading it, I'll leave it up to the maintainers to close it, so that they 
> can also double
> check whether I've missed something when looking at this bug)
> 
> -- 
> tobi
> 
> > 
> > 
> 
> 
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>


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