Hi Robert,

On Wed, May 13, 2020 at 06:25:01AM -0400, Robert P. J. Day wrote:

colleague added a new recipe to a build, got a warning "The license
listed Unlicense was not in the licenses collected for recipe
python-filelock" and, sure enough, that source was released under the
"Unlicense" which i had never heard of:

https://github.com/benediktschmitt/py-filelock/blob/master/LICENSE

what is the standard strategy for dealing with that? should i just
whitelist that license? has anyone else run into this "Unlicense"
license?

You can add a license to your layer by doing the following in
conf/layer.conf:
LICENSE_PATH += "${LAYERDIR}/licenses"

and in there you put the Unlicense file named exactly the same with the
correct content. That's one way.

The other is to use NO_GENERIC_LICENSE[Unlicense] = "/path/to/Unlicense"
in the recipe.

If it's really widely used, maybe something to add to
openembedded-core/files/common-licenses/ ? So that you don't need any of
the suggested ways?

Quentin