debian/copyright is not in machine-readable (DEP-5) format. This replacement was written by the reviewing model: its form has been checked, its content has not.

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: gcc-defaults-ports
Comment: Debian-native package; gcc-defaults has no separate upstream release.
 The gpl.7 and gfdl.7 files, and the c89/c99 wrappers and man pages, are
 shipped in the source tarball; Debian builds set with_gfdl_docs to "no",
 so gpl.7 and gfdl.7 are not installed into any binary package here.

Files: *
Copyright: 2000-2020 Debian
License: GPL-2+

Files: debian/*
Copyright: 2000-2020 Debian
License: GPL-2+

Files: c89.1
       c99.1
Copyright: 1999 The NetBSD Foundation, Inc.
License: BSD-4-clause

Files: gpl.7
Copyright: 1989, 1991 Free Software Foundation, Inc.
License: verbatim-copy

Files: gfdl.7
Copyright: 2000, 2001, 2002 Free Software Foundation, Inc.
License: verbatim-copy

License: GPL-2+
 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.
 .
 On Debian systems, the complete text of the GNU General Public License
 version 2 can be found in `/usr/share/common-licenses/GPL-2'.

License: BSD-4-clause
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 3. All advertising materials mentioning features or use of this software
    must display the following acknowledgement:
     This product includes software developed by the NetBSD
     Foundation, Inc. and its contributors.
 4. Neither the name of The NetBSD Foundation nor the names of its
    contributors may be used to endorse or promote products derived
    from this software without specific prior written permission.
 .
 THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.

License: verbatim-copy
 Everyone is permitted to copy and distribute verbatim copies of this
 license document, but changing it is not allowed.
 .
 gpl.7 is an unmodified manual-page rendering of the GNU General Public
 License version 2, and gfdl.7 of the GNU Free Documentation License
 version 1.2; the terms above are those the Free Software Foundation
 states for the license documents themselves.