Add recipe for natu

[johnflavin]

Checklist

• Title of this PR is meaningful: e.g. "Adding my_nifty_package", not "updated meta.yaml"
• License file is packaged (see here for an example)
• Source is from official source
• Package does not vendor other packages. (If a package uses the source of another package, they should be separate packages or the licenses of all packages need to be packaged)
• If static libraries are linked in, the license of the static library is packaged.
• Build number is 0
• A tarball (url) rather than a repo (e.g. git_url) is used in your recipe (see here for more details)
• GitHub users listed in the maintainer section have posted a comment confirming they are willing to be listed there

[scopatz]

Please add license and license_family entries

[johnflavin]

I didn't know what to include for those. The license text doesn't make reference to any particular named license or license family that I know of. https://github.com/kdavies4/natu/blob/master/LICENSE.txt

[scopatz]

This looks like a modified BSD license. However, the last clause makes me think we can't redistribute this:

This software is controlled under the jurisdiction of the United States
      Department of Commerce and subject to Export Administration Regulations.
      By downloading or using the Software, you are agreeing to comply with
      U. S. export controls.  Diversion contrary to law is prohibited.  The
      software cannot be exported or reexported to sanctioned countries that
      are controlled for Anti-Terrorism (15 CFR Part 738 Supplement 1) or to
      denied parties

CC @conda-forge/core This is something that would be have been caught by conda-forge/conda-smithy#1256

[johnflavin]

I have added BSD for both license and license_family. Leaving aside for the moment the issue of whether this package is redistributable, are these the correct values? Is there some way to indicate in the license value that the license is a modified BSD, and not just BSD?

[scopatz]

license

[isuruf]

@conda-forge-admin, lint

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipes/natu) and found some lint.

Here's what I've got...

For recipes/natu:

• The license item is expected in the about section.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/natu) and found it was in an excellent condition.

[johnflavin]

I asked the author of natu about the potential for modifying the license in kdavies4/natu#36. But given that this ticket was opened years ago, and the author responded that he didn't have time to work on it, I have little hope that the situation will be addressed. I'll close this PR.