Quoting Helge Kreutzmann (debian@helgefjell.de):

Hello Jean-Philippe, On Thu, Jun 14, 2012 at 02:29:23PM +0200, Jean-Philippe Guérard wrote:

...

At that time, the license was not discussed, as we were under the impression this file was part of the glibc and distributed under the same license.

The original author of this file is Keld Jørn Simonsen.

Provided that Keld Jørn Simonsen agree with this, we would be very happy to see this file officially put under a Free license. Using the same license as the glibc would be fine for us.

Do you have a working e-mail address of Keld? The one listed in the files no longer works.

Jean-Philippe added "keld@keldix.com" to the CC field so I guess that might be what's needed.