Re: [eigen] moving forward with MPL2

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Alright then, I just have to take the time to fully understand the
MPL2 GPL compatibility story so I can explain it here. Will do ASAP.


2012/6/13 Gael Guennebaud <gael.guennebaud@xxxxxxxxx>:
> Hi,
> I don't remember there were strong concerns about MPL2-only. If a
> project like Mozilla is moving all its code to MPL2-only, I think it
> should be ok for us to do the same. I'm afraid a tri-licensing will
> significantly affect the main goal of the MPL2: simplicity!
> gael
> On Wed, Jun 13, 2012 at 12:47 PM, Benoit Jacob <jacob.benoit.1@xxxxxxxxx> wrote:
>> Hi List,
>> Can't believe it's been 6 months already!
>> Anyway, the MPL2 relicensing effort has stalled out. I gather that the
>> main hesitations about it were:
>>  1. MPL2 is a new untested license
>>  2. status of GPL/LGPL compatibility not fully obvious from the license or FAQ
>> Regarding 1. notice that since then, Mozilla has effectively
>> relicensed most of its code to MPL2, and all new code should be MPL2,
>> so there is in fact quite a bit of MPL2 code around now. But still,
>> not nearly as much as established licenses, of course.
>> In my original proposal, I said that we should relicense to MPL2-only
>> instead of tri-licensing, as tri-licensing had proved a weak choice
>> for Mozilla, as it opened the door to GPL-only back-contributions that
>> we wouldn't be able to incorporate in the original product.
>> However, 6 months after, it seems like a good time to ease corners a
>> bit to make at least something happen, as the statu quo (LGPL/GPL
>> only) is really not great.
>> So how about this: relicense to MPL2 + existing LGPL3+/GPL2+ licenses
>> (i.e. tri-license)? At least this doesn't have a lot of possible
>> disadvantages compared to the current situation. The above-mentioned
>> loophope already exists with our present dual-license.
>> Keeping the existing LGPL+GPL licenses should remove the above
>> concerns 1. and 2.
>> Objections?
>> Benoit

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