This Inferno® distribution includes software from various sources and
different portions are therefore subject to different licence terms.
The bulk of the tree is covered by the permissive MIT licence reproduced below.
Individual components might have their own NOTICE and licence files (LICENCE
or COPYING) that cover their content.  All of them allow modification and redistribution.
They are all compatible with the GPLv2.

The following copyright notice covers the contents of this
distribution unless otherwise specified by a given file, directory or
directory tree:

Inferno Copyright © 1996-1999 Lucent Technologies Inc.
Revisions Copyright © 1997-1999 Vita Nuova Limited.
Revisions Copyright © 2000-2015 Vita Nuova Holdings Limited.
Inferno Copyright © 2000-2015 Vita Nuova Holdings Limited.

Inferno, Dis and Limbo are registered trademarks of Vita Nuova Holdings Limited in the USA and other countries.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.