Add run_exports to libarchive

[sodre]

cc: @jakirkham xref: https://github.com/conda-forge/singularity-feedstock/pull/14#discussion_r239152464

@conda-forge-admin, please rerender

Checklist

• [x] Used a fork of the feedstock to propose changes
• [x] Bumped the build number (if the version is unchanged)
• [x] Reset the build number to 0 (if the version changed)
• [x] Re-rendered with the latest conda-smithy (Use the phrase code>@<space/conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• [x] Ensured the license file is being packaged.

[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 (recipe) and found it was in an excellent condition.

[sodre]

@conda-forge/libarchive, It looks like the builds are failing unexpectedly on Windows.

The PR I submitted only added the run_exports directive and it build correctly in all other platforms.

[jakirkham]

It looks like the builds are failing unexpectedly on Windows.

That is a known issue. ( https://github.com/conda-forge/libarchive-feedstock/issues/1 )

[jakirkham]

Thanks @sodre :)