COPYRIGHT: Debian DEP-5 format copyright file.

This was utterly miserable to prepare, so at least I only have to do it
once.

diff --git a/COPYRIGHT b/COPYRIGHT
new file mode 100644 (file)
index 0000000..d5cdd78
--- /dev/null
+++ b/COPYRIGHT
@@ -0,0 +1,84 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Copyright:
+       1999, 2002--2006, 2008, 2010, 2013, 2017, 2019, 2020, 2024
+         Mark Wooding
+       1996, 1997, 1999, 2000, 2003, 2004, 2008--2010, 2013, 2016, 2019,
+         2020 Straylight/Edgeware
+       1989, 1991, 1994--1996 1999--2002, 2004--2012 Free Software
+         Foundation
+Upstream-Name: cfd
+Upstream-Contact: Mark Wooding <mdw@distorted.org.uk>
+Source: https://ftp.distorted.org.uk/pub/mdw/
+License: GPL-2.0+
+
+Files: build/*
+Copyright: 2003, 2008--2010, 2013, 2016, 2019, 2020 Straylight/Edgeware
+License: GPL-2.0+
+
+Files: src/*
+Copyright: 1996, 1997, 1999, 2000, 2004, 2008 Straylight/Edgeware
+License: LGPL-2.0+
+
+Files: build/auto-version build/confsubst doc/texinice.tex m4/*.m4
+Copyright: 1999, 2002--2006, 2008, 2010, 2013, 2017, 2019, 2020, 2024
+       Mark Wooding
+License: GPL-2.0+
+
+Files: doc/INSTALL
+Copyright: 1994--1996, 1999--2002, 2004--2012 Free Software Foundation
+License: FSFAP
+       Copying and distribution of this file, with or without modification,
+       are permitted in any medium without royalty provided the copyright
+       notice and this notice are preserved.  This file is offered as-is,
+       without warranty of any kind.
+
+Files: licence/*
+Copyright: 1989, 1991, 1999, 2007 Free Software Foundation
+License: FSF meta-licence
+       Everyone is permitted to copy and distribute verbatim copies of this
+       license document, but changing it is not allowed.
+
+Files: src/getdate.*
+Copyright:
+       (unknown dates) Steven M. Bellovin
+       (unknown dates) `a couple of people on Usenet'
+       1994 Rich Salz
+       1994 Jim Berets
+       1999 Mark Wooding
+License: public-domain
+       This code is in the public domain and has no copyright.
+
+License: GPL-2.0+
+       This program is free software; you can redistribute it and/or modify
+       it under the terms of the GNU General Public License as published by
+       the Free Software Foundation; either version 2 of the License, or
+       (at your option) any later version.
+       .
+       This program 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.
+       .
+       You should have received a copy of the GNU General Public License
+       along with this package; if not, see <https://www.gnu.org/licenses/>.
+Comment:
+       On Debian systems, the full text of the GNU General Public License
+       version 2 can be found in the file '/usr/share/common-licenses/GPL-2'.
+
+License: LGPL-2.0+
+       This library is free software; you can redistribute it and/or modify
+       modify it under the terms of the GNU Library General Public License
+       as published by the Free Software Foundation; either version 2 of the
+       License, or (at your option) any later version.
+       .
+       This program 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.
+       .
+       You should have received a copy of the GNU Library General Public
+       License along with this package; if not, see
+       <https://www.gnu.org/licenses/>.
+Comment:
+       On Debian systems, the full text of the GNU General Public License
+       version 2 can be found in the file '/usr/share/common-licenses/LGPL-2'.