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<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> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">Thanks for the interesting question. </span><span class="pl-c"><span lang="EN-GB">This is not legal advice, and I’m not a lawyer, but I do write software, so I’ve had to read up on
the topic of software licenses. </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. 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> </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> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </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"> eprints-tech-bounces@ecs.soton.ac.uk [mailto:eprints-tech-bounces@ecs.soton.ac.uk]
<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' <eprints-tech@ecs.soton.ac.uk><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> </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> </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> </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> </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"> Copyright (C) British Library Board, St. Pancras, UK<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"> <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> </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"> Copyright 2000-2011 University of Southampton.</span><o:p></o:p></span></p>
<p class="MsoNormal"><span class="pl-c"><span lang="EN-GB"> 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> </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> </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> </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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