I think this is the canonical one:

http://opensource.org/licenses/MIT





Trygve Reenskaug wrote
> I've googled "MIT Licence". There appears to be several and the most 
> important one should probably be called something else?
> So what, precisely, is "the MIT licence" that I am bound by when I make 
> a Squeak contribution?
> 
> 
> On 24.09.2014 15:01, Louis LaBrunda wrote:
>> Hi Jecel,
>>
>> Thanks for the history and all your efforts.
>>
>> Lou
>>
>>
>> On Tue, 23 Sep 2014 19:56:16 -0300, "Jecel Assumpcao Jr."
>> <

> jecel@

> > wrote:
>>
>>> David T. Lewis wrote on Mon, 22 Sep 2014 20:54:13 -0400
>>>> The signed contributor agreement was a part of the process of
>>>> establishing
>>>> the current Squeak licensing. I signed one of them myself, as did
>>>> everyone
>>>> else who was known to have contributed anything (large or small) to the
>>>> image up to that point.
>>> Just to add a bit to the history of the licensing issues for those who
>>> have joined us more recently:
>>>
>>> After being developed as an internal and mostly secret project at Xerox
>>> PARC for a decade, the company decided to release Smalltalk to the world
>>> in the early 1980s (thanks mostly to the efforts of Adele Goldberg and
>>> friends). Xerox got in touch with several other companies and made a
>>> deal with Apple, Tektronix, HP and DEC to give them a license to the
>>> Smalltalk technology that would allow them to do absolutely anything
>>> they wanted with it for free in exchange for them dedicating engineering
>>> resources to help with the process of converting a research project into
>>> a product.
>>>
>>> Later on a fifth license was granted to Berkeley but I don't know if the
>>> terms were the same. Tektronix created some "artificial intelligence"
>>> workstations around Smalltalk (the 4404 and 4406). They also used
>>> Smalltalk in their oscilloscopes, but I am not sure if this also came
>> >from Xerox. HP and DEC are now the same company and didn't do anything
>>> with it, though later HP had a Distributed Smalltalk project.
>>>
>>> Apple did a limited release of Lisa Smalltalk to developers and this
>>> later ran on Macintosh machines as well when these got enough memory. It
>>> was never available to the general public. When the Squeak project was
>>> started in 1996/1997 this code was the starting point and the Xerox
>>> license meant that Apple could relicense it under any terms it wanted.
>>> Since the Squeak group was moving from Apple to Disney, getting Apple to
>>> do its very first Free Software license was key to not having to start
>> >from scratch. The new SqueakL (as the license became known) tried to
>>> strike a balance between the advantages of the BSD/MIT commercial
>>> friendliness (so Disney could build products on top of Squeak and
>>> distribute them without giving away the source) and the GPL forced
>>> contributions to the common good. Which terms applied depended on
>>> whether a method was considered a part of the kernel or if it was an
>>> extension, which is a rather subjective thing in a monolithic image.
>>>
>>> The following year the term Open Source was invented and defined in a
>>> way that the SqueakL didn't quite fit. This caused a lot of anguish and
>>> yearly discussions about possible relicensing (always in the Spring,
>>> though since it is nearly Spring where I am this thread could be
>>> considered timely). Oddly enough the halfway MIT half GPL aspect never
>>> bothered anybody. The complaints were about the terms for one of the
>>> fonts (which was soon eliminated from the image anyway), about export
>>> restrictions (which US laws impose even on licenses that don't mention
>>> them) and the promise to help Apple in any lawsuit they got into due to
>>> your distributing Squeak.
>>>
>>> Things became critical in 2006 when people in the One Laptop Per Child
>>> project threatened to reject Squeak due to the license. Alan Kay called
>>> Steve Jobs personally and got Apple to re-release Squeak 1.1 under the
>>> Apple Community license, as allowed by their Xerox PARC license. The
>>> OLPC people were not happy with that, and Alan got Jobs to release
>>> Squeak 1.1 a third time under the Apache version 2 license. Then the
>>> people at VPRI (Alan's research institute) started the effort to get
>>> everybody who had ever added code after Squeak 1.1 to sign an agreement
>>> to relicense their part from SqueakL to MIT. The focus was on Etoys, so
>>> the Pharo guys extended this effort to the code in their system which
>>> wasn't a part of Etoys. After that the Squeak Board started from the
>>> Pharo effort and covered the whole Squeak code (my contribution was
>>> checking everything that was done in early versions before we had
>>> programmer initials).
>>>
>>> One additional detail is that when Ian Piumarta ported the Squeak VM to
>>> Unix he selected to the GPL for his contributions. Since this is C code
>>> and very isolated from the rest of the system nobody has ever had a
>>> problem with that. But it does mean that the whole Squeak system is
>>> available in 3 different licenses: parts under the GPL, parts under
>>> Apache version 2 and everything else under MIT. Our policy is that all
>>> future contributions have to be MIT, so the tiny parts under the two
>>> other licenses will never grow. The simplification that "Squeak is
>>> available under the MIT license" is good enough for nearly all purposes,
>>> but some people are picky so I thought it would be a good idea to bore
>>> you all with these details.
>>>
>>> -- Jecel
>>>
>>>
>> -----------------------------------------------------------
>> Louis LaBrunda
>> Keystone Software Corp.
>> SkypeMe callto://PhotonDemon
>> mailto:

> Lou@

>  http://www.Keystone-Software.com
>>
>>
>>
>>
> 
> -- 
> 
> Trygve Reenskaug      mailto: 

> trygver at .uio

> Morgedalsvn. 5A       http://folk.uio.no/trygver/
> N-0378 Oslo             http://fullOO.info
> Norway                     Tel: (+47) 22 49 57 27





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