Permission to relicense from GPLv2 to a later version

[rdmark]

The GPLv2 has a clause that allows upgrading to future revisions of the GPL.

The standard GPLv2 grant[1] recommends this paragraph, and is what is used for the majority of GPLv2 licensed sources in Netatalk:

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

However, three sources files in the Netatalk codebase[2] have this grant:

This program is free software; you can redistribute and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation version 2 of the License or later version if explicitly stated by any of above copyright holders.

(my emphasis)

This ticket is about gaining the explicit approval from any of the copyright holders of the three source files in question.

The one named copyright holder common between all three files is Rafal Lewczuk. I have reached out to him privately and asked for permission.

[1] https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html @ section "How to Apply These Terms to Your New Programs"
[2.a] https://github.com/Netatalk/netatalk/blob/main/libatalk/cnid/cnid.c
[2.b] https://github.com/Netatalk/netatalk/blob/main/libatalk/cnid/cnid_init.c
[2.c] https://github.com/Netatalk/netatalk/blob/main/include/atalk/cnid.h

[rlewczuk]

I'm giving permission to relicense above files under later versions of GPL as requested by @rdmark.

Glad to see netatalk project still alive, good luck to everybody involved.

[rdmark]

@rlewczuk Thank you for all your contributions to the project back then!

For starters, I have put up PRs to leave a note of the "evidence" of this permission under the copyright notices.