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<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">I just realized that the two licenses (British Library) and EPrints one are not the same, so I see that it is already a little complex
</span><span style="font-family:Wingdings;color:#1F497D;mso-fareast-language:ZH-CN">J</span><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">GPL is compatible with LGPL v3, but with some comments:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><a href="https://www.gnu.org/licenses/license-list.en.html#GPLCompatibleLicenses">https://www.gnu.org/licenses/license-list.en.html#GPLCompatibleLicenses</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p style="margin-left:36.0pt">GNU Lesser General Public License (LGPL) version 3 (#LGPL) (#LGPLv3)<o:p></o:p></p>
<p style="margin-left:36.0pt">This is the latest version of the LGPL: a free software license, but not a strong copyleft license, because it permits linking with nonfree modules. It is compatible with GPLv3. We recommend it for
<a href="https://www.gnu.org/licenses/why-not-lgpl.html">special circumstances only</a>.<o:p></o:p></p>
<p style="margin-left:36.0pt">Please note that LGPLv3 is not compatible with GPLv2 by itself. However, most software released under GPLv2 allows you to use the terms of later versions of the GPL as well. When this is the case, you can use the code under GPLv3
 to make the desired combination. To learn more about compatibility between GNU licenses, please
<a href="https://www.gnu.org/licenses/gpl-faq.html#AllCompatibility">see our FAQ</a>.<o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">Tomasz<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:ZH-CN">From:</span></b><span lang="EN-US" style="mso-fareast-language:ZH-CN"> Tomasz Neugebauer
<br>
<b>Sent:</b> August-10-17 1:56 PM<br>
<b>To:</b> 'eprints-tech@ecs.soton.ac.uk' &lt;eprints-tech@ecs.soton.ac.uk&gt;<br>
<b>Subject:</b> RE: Licence information in Bazaar / plugin files<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">Hi John,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">Thanks for the interesting question. &nbsp;&nbsp;</span><span class="pl-c"><span lang="EN-GB">This is not legal advice, and I&#8217;m not a lawyer, but I do write software, so I&#8217;ve had to read up on
 the topic of software licenses.&nbsp; </span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">One of the objectives of open source is to keep the licensing as simple as possible, this is why new custom licenses with additional clauses are not open source.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">In this case, the license is remaining the same, it is the
</span><span class="pl-c"><span lang="EN-GB">GNU General Public License, so all is well.<o:p></o:p></span></span></p>
<p class="MsoNormal"><span class="pl-c"><span lang="EN-GB">When releasing new versions, you have the responsibility to leave any of the copyright statements intact.<o:p></o:p></span></span></p>
<p class="MsoNormal"><span class="pl-c"><span lang="EN-GB">It seems to me that for any additions and changes that you make to the code (i.e., introducing new version/modifications/etc to it), you
<i>can</i> add your own name, with your own choice of license. &nbsp;However, if you choose any license other than GPL for your additions/modifications, then that becomes problematic.<o:p></o:p></span></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">Tomasz<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:ZH-CN">From:</span></b><span lang="EN-US" style="mso-fareast-language:ZH-CN">
<a href="mailto:eprints-tech-bounces@ecs.soton.ac.uk">eprints-tech-bounces@ecs.soton.ac.uk</a> [<a href="mailto:eprints-tech-bounces@ecs.soton.ac.uk">mailto:eprints-tech-bounces@ecs.soton.ac.uk</a>]
<b>On Behalf Of </b>John Salter<br>
<b>Sent:</b> August-10-17 8:03 AM<br>
<b>To:</b> 'eprints-tech@ecs.soton.ac.uk' &lt;<a href="mailto:eprints-tech@ecs.soton.ac.uk">eprints-tech@ecs.soton.ac.uk</a>&gt;<br>
<b>Subject:</b> [EP-tech] Licence information in Bazaar / plugin files<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Bit of a non-techie question - but one that is in our domain.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I'm making some updates to the UKETD_DC (UK eTheses and Dissertations) export plugin:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><a href="https://github.com/eprints/eprints/blob/3.3/perl_lib/EPrints/Plugin/Export/OAI_UKETD_DC.pm">https://github.com/eprints/eprints/blob/3.3/perl_lib/EPrints/Plugin/Export/OAI_UKETD_DC.pm</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">The changes will be issued as a Pull Request on the 3.3 branch, and I will also be making them into a Bazaar package.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">The file already contains some copyright information from the British Library (who were involved with creating the initial export format):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><a href="https://github.com/eprints/eprints/blob/3.3/perl_lib/EPrints/Plugin/Export/OAI_UKETD_DC.pm#L9-L29">https://github.com/eprints/eprints/blob/3.3/perl_lib/EPrints/Plugin/Export/OAI_UKETD_DC.pm#L9-L29</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">-in summary:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">&nbsp;&nbsp;&nbsp; Copyright (C) British Library Board, St. Pancras, UK<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">&nbsp;&nbsp;&nbsp; <span class="pl-c">GNU General Public License v2 (or later)</span><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">At the end of the file (<a href="https://github.com/eprints/eprints/blob/3.3/perl_lib/EPrints/Plugin/Export/OAI_UKETD_DC.pm#L369-L394">https://github.com/eprints/eprints/blob/3.3/perl_lib/EPrints/Plugin/Export/OAI_UKETD_DC.pm#L369-L394</a>)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">it also has the 'standard' EPrints statements:<o:p></o:p></span></p>
<p class="MsoNormal"><span class="pl-c"><span lang="EN-GB">&nbsp;&nbsp;&nbsp; Copyright 2000-2011 University of Southampton.</span><o:p></o:p></span></p>
<p class="MsoNormal"><span class="pl-c"><span lang="EN-GB">&nbsp;&nbsp;&nbsp; GNU Lesser General Public License - v3 or later.<o:p></o:p></span></span></p>
<p class="MsoNormal"><span class="pl-c"><span lang="EN-GB"><o:p>&nbsp;</o:p></span></span></p>
<p class="MsoNormal"><span class="pl-c"><span lang="EN-GB">I was going to leave all these statements in as-is, and not add any of my own - but ten I wondered if this was actually a 'correct' thing to do - or whether I should be adding any additional information?<o:p></o:p></span></span></p>
<p class="MsoNormal"><span class="pl-c"><span lang="EN-GB"><o:p>&nbsp;</o:p></span></span></p>
<p class="MsoNormal"><span class="pl-c"><span lang="EN-GB">Obviously it'll still be GNU Lesser General Public License v3 or later, but what about the two copyright statements? Do they already conflict?<o:p></o:p></span></span></p>
<p class="MsoNormal"><span class="pl-c"><span lang="EN-GB">Any thoughts?<o:p></o:p></span></span></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">John<o:p></o:p></span></p>
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