Re: [tlaplus] Source file with non-commercial license

[Stephan Merz <stephan.merz@xxxxxxxxx>]

I believe that the part that Chuck refers to is the copyright inherited from UBC for HeapSort, even if this algorithm is commonplace.

Stephan

> On 16 Nov 2020, at 17:59, Markus Kuppe <tlaplus-google-group@xxxxxxxxxxx> wrote:
> 
> On 16.11.20 03:53, Chuck Lutz wrote:
>> Hi folks,
>> 
>> I'm looking to possibly use TLA+ at work, but our legal folks have
>> pointed out that the following file includes a license that restricts
>> non-commercial use:
>> 
>> https://github.com/tlaplus/tlaplus/blob/master/tlatools/org.lamport.tlatools/src/tla2tex/PosAndCol.java
>> 
>> Is this file vital to the use of TLA+? They want to remove it from what
>> would be our internally-approved distribution of the .tgz / .zip from
>> GitHub.
>> 
>> It seems like it would affect the pretty-printing.
>> 
>> Thanks in advance for any information,
>> Chuck Lutz
> 
> Hi Chuck,
> 
> there are many source files with an identical or similar copyright
> header. You won't be able to remove all of them without breaking TLC.
> However, as agreed to by the copyright holders HP/Compaq and Microsoft,
> the TLA+ tools and the Toolbox are released under the (permissive) MIT
> license [1]. Please open an issue [2] if your legal department still has
> concerns.
> 
> Thanks,
> Markus
> 
> [1] https://github.com/tlaplus/tlaplus/blob/master/README.md#license
> [2] https://github.com/tlaplus/tlaplus/issues
> 
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