There have been several questions about licensing of HALs. The ASF 3rd pary license policy is here:
https://www.apache.org/legal/resolved.html https://www.apache.org/legal/resolved.html#category-x I haven't been following all of the discussion. It has gotten long, redundant, and at times emotional. I hope those references at least clarify what is permissible to include or link into an ASF project
