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all: update for new MIT license

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On March 23, 2021, Nokia transferred the copyrights in the Plan 9 software
to the Plan 9 Foundation, which relicensed them under the MIT license.

This commit updates the Plan 9 from User Space license to reflect the
new base license. The vast majority of the contributions beyond the
base Plan 9 set were by me, many of them explicitly under an MIT license.
Those are all under the new MIT license now as well.

The port of mk to Unix was taken from Inferno via Vita Nuova and had
been made available under GPL, but Vita Nuova has relicensed Inferno
under the MIT license as well, to match the new Plan 9 license.

Michael Teichgraber contributed src/lib9/zoneinfo.c explicitly under
the Lucent Public License but has agreed to change the contribution
to the MIT license now used in the rest of the distribution.

There remain a few exceptions, most notably fonts.
See the root LICENSE file for full details.

The only mention of the Lucent Public License in the whole tree now
is in the LICENSE file, explaining the history.
This commit is contained in:
Russ Cox 2021-03-23 17:24:35 -04:00
parent a8bd9e9d8c
commit 88a87fadae
16 changed files with 195 additions and 490 deletions
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13
src/cmd/awk/README
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@ -1,13 +0,0 @@
This 'awk' source is directly downloaded from the Plan 9 source
http://cm.bell-labs.com/sources/plan9/sys/src/cmd/awk/
as such, it's copyright is held by Lucent Technologies and distributed under the
Lucent Public License version 1.02 [http://www.opensource.org/licenses/lucent1.02.php].
Modifications were made by Jeff Sickel in order to build using Plan 9 from User
Space [https://9fans.github.io/plan9port/] to the following files:
mkfile
re.c

42
src/cmd/mk/NOTICE
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@ -1,27 +1,21 @@
Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
Portions Copyright © 1995-1997 C H Forsyth (forsyth@caldo.demon.co.uk). All rights reserved.
Portions Copyright © 1997-1999 Vita Nuova Limited. All rights reserved.
Portions Copyright © 2000-2002 Vita Nuova Holdings Limited (www.vitanuova.com). All rights reserved.
Copyright © 2021 Plan 9 Foundation
Portions Copyright © 1997-1999 Vita Nuova Limited
Portions Copyright © 2000-2015 Vita Nuova Holdings Limited
Under a licence agreement with Lucent Technologies Inc. effective 1st March 2000,
Vita Nuova Holdings Limited has the right to determine (within a specified scope)
the form and content of sublicences for this software.
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:
Vita Nuova Holdings Limited now makes this software available as Free
Software under the terms of the `GNU General Public LIcense, Version 2'
(see the file LICENCE or http://www.fsf.org/copyleft/gpl.html for
the full terms and conditions). One of the conditions of that licence
is that you must keep intact all notices that refer to that licence and to the absence of
of any warranty: for this software, note that includes this NOTICE file in particular.
This suite of programs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
`GNU General Public License' for more details.
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
This copyright NOTICE applies to all files in this directory and
subdirectories, unless another copyright notice appears in a given
file or subdirectory. If you take code from this software to use in
other programs, you must somehow include with it an appropriate
copyright notice that includes the copyright notice and the other
notices above.
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.