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cde/COPYRIGHT
Martijn Dekker 46593a89b7 Get rid of overcomplicated AT&T copyright/license maintenance code 
I'm now taking another small step towards extricating this build
system from the long-dead AT&T AST universe.

This commit modifies/reduces the tool called proto. AT&T used proto
for two purposes:

  1. To convert ANSI C code to a form compatible with ancient
     (pre-ANSI) K&R C compilers using extremely complex macro
     voodo. It was similarly capable of translating to C++.
     Theoretically, this entire code base should compile on
     anything from a 1980s K&R C compiler to a modern C++ compiler.
     In practice, given the massive amount of bit rot we inherited,
     I am 99.9% sure that this has been broken for many years.

  2. To automagically insert license comments into source files
     based on an extremely complicated license database system.
     (In all-too-typical AT&T fashion, this second function of
     proto is completely unrelated to the first.)

Function 2 has now been removed because, unlike the AT&T legal
department, I don't think it's worth going to unspeakably extreme
lengths to avoid maintaining license information in source code
files by hand.

In the process, proto.c was cleaned up to look halfway like actual
C code, but it's still processed code: most macros have been
expanded to their numeric value, all comments were stripped, etc.
So don't expect to understand this code. The actual source code is
in these two directories in the ast-open-history repo:

https://github.com/ksh93/ast-open-history/tree/master/src/cmd/proto
https://github.com/ksh93/ast-open-history/tree/master/src/lib/libpp

Meanwhile, nobody wants to compile ksh with a pre-ANSI K&R C
compiler in 2021 -- and there's no good reason to be compatible
with C++ because standard C compilers are universally available.
So, proto will go away when I manage to figure out how to pry it
loose from the innards of this build system.

src/lib/libast/port/astlicense.c:
- Removed. This is al the license handling code that was
  incorporated in proto.c in stripped form. It was not used
  anywhere else, and the environment where it was useful is gone.

src/cmd/INIT/proto.c:
- Cleanup to make this halfway maintainable: indentation, huge
  blocks of empty lines, #line directives, etc.
- Delete all the code corresponding to astlicense.c. This was
  actually easy as it was in a discrete block.
- proto(), pppopen(): Remove 'license'/'notice' and 'options'
  arguments.
- main(): Remove processing of -l (license) and -o (license
  options) flags.

**/Mamfile:
- Update all the proto invocations to remove the -l and -o flags.

bin/package, src/cmd/INIT/package.sh:
- Delete the 'copyright' command, which used the -l and -o
  options to tell proto to extract copyright information from
  *.lic/*.def files in lib/package.

COPYRIGHT:
- Added. This has the information from 'bin/package copyright', with
  the copyright years corrected to plausible values as the AST code
  used the current year (2021) for all of them. It adds ksh 93u+m
  copyright and contributor information at the top as well.
     (Yes, some of the lines in the old non-AT&T copyright notices
  are clipped. This is the actual output of the 'bin/package
  copyright' command as generated by 'proto' in the AST
  distribution. For all that extreme complexity, they couldn't even
  reproduce the notices correctly. But it's officially sanctioned
  by AT&T in exactly this form, so there you have it.)

lib/package/**:
- Removed. All these files are now obsolete and redundant.
2021-12-14 03:15:16 +01:00

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ksh 93u+m general copyright notice
########################################################################
# #
# The KornShell 93u+m distribution #
# Copyright (c) 2021 Contributors to ksh 93u+m #
# <https://github.com/ksh93/ksh> #
# Derived from AT&T's ast package (see below) #
# Licensed under the Eclipse Public License, Version 1.0 #
# #
# A copy of the License is available at #
# http://www.eclipse.org/org/documents/epl-v10.html #
# (with md5 checksum b35adb5213ca9657e911e9befb180842) #
# #
# CONTRIBUTORS #
# #
# Martijn Dekker <martijn@inlv.org> #
# Johnothan King <johnothanking@protonmail.com> #
# hyenias <58673227+hyenias@users.noreply.github.com> #
# Anuradha Weeraman <anuradha@weeraman.com> #
# Chase <nicetrynsa@protonmail.ch> #
# Govind Kamat <govind_kamat@yahoo.com> #
# Harald van Dijk <harald@gigawatt.nl> #
# Lev Kujawski <int21h@mailbox.org> #
# Marc Wilson <posguy99@gmail.com> #
# #
########################################################################
ast package general copyright notice
########################################################################
# #
# This software is part of the ast package #
# Copyright (c) 1986-2014 AT&T Intellectual Property #
# and is licensed under the #
# Eclipse Public License, Version 1.0 #
# by AT&T Intellectual Property #
# #
# A copy of the License is available at #
# http://www.eclipse.org/org/documents/epl-v10.html #
# (with md5 checksum b35adb5213ca9657e911e9befb180842) #
# #
# Information and Software Systems Research #
# AT&T Research #
# Florham Park NJ #
# #
# CONTRIBUTORS #
# #
# Glenn Fowler <gsf@research.att.com> #
# David Korn <dgk@research.att.com> #
# Phong Vo <kpv@research.att.com> #
# Adam Edgar <aedgar@research.att.com> #
# Adam Buchsbaum <alb@adambuchsbaum.com> #
# Aman Shaikh <ashaikh@research.att.com> #
# Bala Krishnamurthy <bala@research.att.com> #
# Brian Russell <brussell@research.att.com> #
# Robin Chen <chen@research.att.com> #
# Don Caldwell <dfwc@research.att.com> #
# Lefty Koutsofios <ek@research.att.com> #
# Bob Gruber <bob.gruber@gmail.com> #
# Jia Wang <jiawang@research.att.com> #
# Jeff Fellin <jkf@research.att.com> #
# Jeff Korn <@google.com> #
# Kathleen Fisher <kfisher@research.att.com> #
# Ken Church <@microsoft.com> #
# Brian Kernigham <bwk@research.bell-labs.com> #
# Dennis Ritchie <dmr@research.bell-labs.com> #
# Doug McIlroy <doug@research.bell-labs.com> #
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# John Snyder <jjs@adexus.cl> #
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# #
########################################################################
bsd package general copyright notice
########################################################################
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# This software is part of the BSD package #
# Copyright (c) 1979-2012 The Regents of the University of California #
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