IO::Tty is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.

This means you may choose to use either:

  a) the GNU General Public License, version 1 or later, as published
     by the Free Software Foundation; or

  b) the "Artistic License" which comes with Perl.

For more details, see the full text of the licenses at:

  a) GPL:      https://www.gnu.org/licenses/gpl-1.0.txt
  b) Artistic: https://dev.perl.org/licenses/artistic.html

Nevertheless the above AUTHORS retain their copyrights to the various
parts and want to receive credit if their source code is used.
See the source for details.
