[R-pkg-devel] How to structure LICENSE for multiple licenses?

[Uwe Ligges]

On 24.05.2022 23:57, Steven Scott wrote:
> The current version of 'bsts' is released under the LGPL.  I want to add
> the MIT license as an alternative.
> 
> Right now the DESCRIPTION file contains the line
>                 License: LGPL-2.1 | file LICENSE
> and the file LICENSE contains a copy of the LGPL.

The latter is not needed as the license file is part of R, so the 
declaration is sufficient.



> To add the MIT license I believe I need to modify it to be
>           License: LGPL-2.1 | MIT + file LICENSE | file LICENSE

You actually need

License: LGPL-2.1 | MIT + file LICENSE

where the LICENSE file contains the CRAN template for the MIT license only

Best,
Uwe Ligges



> The syntax MIT + file LICENSE is because the MIT license is a template, and
> I need to fill in the template parameters in the LICENSE file.
> 
> What's the right way to structure the LICENSE file to contain two
> licenses?  Should I have two files (MIT.LICENSE, LGPL.LICENSE)?  Can I just
> append the MIT license to the bottom of the LICENSE file?
> 
> Thank you for reading.
> 
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> 
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