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https://issues.apache.org/jira/browse/CALCITE-6098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17784220#comment-17784220
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Stamatis Zampetakis commented on CALCITE-6098:
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I didn't have the full context thanks for sharing Julian. I wasn't exactly sure 
what were the generated files that the NOTICE was referring to. Now, I see that 
all the .scss files that we have in Calcite are indeed also present in the 
[Jekyll 
repo|https://github.com/jekyll/jekyll/tree/3f3a283018a976da11a0bfcc13a20d43d37ee29f/docs/_sass].
 I will try to see what's the appropriate LICENSE for those since it seems that 
Jekyll also took them from somewhere else (at least some of them).

> Remove mentions of Jekyll from LICENSE and NOTICE files
> -------------------------------------------------------
>
>                 Key: CALCITE-6098
>                 URL: https://issues.apache.org/jira/browse/CALCITE-6098
>             Project: Calcite
>          Issue Type: Task
>    Affects Versions: 1.36.0
>            Reporter: Stamatis Zampetakis
>            Assignee: Stamatis Zampetakis
>            Priority: Major
>              Labels: pull-request-available
>
> The NOTICE file contains the following statement:
> {noformat}
> The web site includes files generated by Jekyll.{noformat}
>  
> However, there is nothing in the [LICENSE of Jekyll 
> |https://github.com/jekyll/jekyll/blob/3f3a283018a976da11a0bfcc13a20d43d37ee29f/LICENSE]
>  that requires such attribution. 
> According to the instructions of composing the [NOTICE 
> file|https://infra.apache.org/licensing-howto.html#mod-notice] for ASF 
> projects we shouldn't add anything in there that is not *legally* required.
> Moreover the generated files are not necessary licensed under the same 
> LICENSE with the generator. 
> JavaCC, ANTLR, and lots of other source generators use a variety of licenses 
> but the generated output is not licensed under the same terms. For instance, 
> Calcite uses JavaCC, which is licensed under 
> [BSD-3|https://github.com/javacc/javacc/blob/master/LICENSE]  but both the 
> grammar as well as the generated .java files are AL2.
> As long as we are not packaging bits of Jekyll in Calcite there is no need to 
> add explicit mentions in LICENSE or NOTICE files.



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