Here is the NIST license for another piece of their software, SCTK.
It says that the software is public domain, but also includes an
explicit disclaimer. Is that still "Public Domain" for spec file
This software was developed at the National Institute of Standards and
Technology by employees of the Federal Government in the course of their
official duties. Pursuant to title 17 Section 105 of the United States Code
this software is not subject to copyright protection and is in the public
domain. SCTK is an experimental system. NIST assumes no responsibility
whatsoever for its use by other parties, and makes no guarantees, expressed or
implied, about its quality, reliability, or any other characteristic. We would
appreciate acknowledgement if the software is used.
THIS SOFTWARE IS PROVIDED "AS IS." With regard to this software, NIST MAKES NO
EXPRESS OR IMPLIED WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING
MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
Incidentally, there's yet another of those broken "AS IS" clauses here: