doc: Add license notes for libdns.

* COPYING.other: New.
* Makefile.am (EXTRA_DIST): Add it.
* AUTHORS: Add info on libdns.
* build-aux/speedo/w32/pkg-copyright.txt: Add license terms.

Signed-off-by: Werner Koch <wk@gnupg.org>

AUTHORS

@@ -31,6 +31,7 @@ List of Copyright holders
   Copyright (C) 1998-2003 Hallvard B. Furuseth.
   Copyright (C) 1992-1996 Regents of the University of Michigan.
   Copyright (C) 2000 Dimitrios Souflis
+  Copyright (C) 2008,2009,2010,2012-2016 William Ahern
 
 
 Authors with a FSF copyright assignment
@@ -220,9 +221,10 @@ Alexandre Julliard.
 The gpg-zip documentation is based on the manpage for gpg-zip, written
 by Colin Tuckley and Daniel Leidert for the GNU/Debian distribution.
 
+The DNS resolver code is libdns by William Ahern; see COPYING.other.
+
 The test driver is based on TinySCHEME by Dimitrios Souflis and
-available under a permissive license.  For the terms see the file
+available under a permissive license; see COPYING.other.
-tests/gpgscm/LICENSE.TinySCHEME.
 
 
 Copyright
@@ -234,9 +236,10 @@ or later.
 Note that some files are under a combination of the GNU Lesser General
 Public License, version 3 and the GNU General Public License, version
 2.  A few files carry an all permissive license note as found at the
-bottom of this file.  Some small files are distributed under the
+bottom of this file.  A few files are distributed under permissive
-Creative Commons Zero (CC0-1.0-Universal) license which basically puts
+licenses as listed in the file COPYING.other.  Some other small files
-them into the public domain.
+are distributed under the Creative Commons Zero license (see file
+COPYING.CC0) which basically puts them into the public domain.
 
 
 =========

COPYING.other

@@ -0,0 +1,60 @@
+# COPYING.other                                            -*- org -*-
+#+TITLE: List of code with permissive licenses as used by GnuPG.
+#+STARTUP: showall
+
+* DNS resolver (dirmngr/dns.c)
+
+  dns.c - Recursive, Reentrant DNS Resolver.
+  --------------------------------------------------------------------------
+  Copyright (c) 2008, 2009, 2010, 2012-2016  William Ahern
+
+  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.
+
+* TinySCHEME (tests/gpgscm/LICENSE.TinySCHEME)
+
+  Copyright (c) 2000, Dimitrios Souflis
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are
+  met:
+
+  Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+
+  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.
+
+  Neither the name of Dimitrios Souflis nor the names of the
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 REGENTS 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.

Makefile.am

@@ -26,7 +26,8 @@ GITLOG_TO_CHANGELOG=gitlog-to-changelog
 
 EXTRA_DIST = build-aux/config.rpath build-aux/potomo autogen.sh autogen.rc \
 	     ChangeLog-2011 po/ChangeLog-2011 build-aux/ChangeLog-2011     \
-	     VERSION README.GIT build-aux/gitlog-to-changelog COPYING.CC0  \
+	     VERSION README.GIT build-aux/gitlog-to-changelog              \
+	     COPYING.CC0 COPYING.other                      \
 	     build-aux/git-log-fix build-aux/git-log-footer \
 	     build-aux/getswdb.sh                           \
 	     build-aux/speedo.mk                            \

build-aux/speedo/w32/pkg-copyright.txt

@@ -19,6 +19,7 @@ GnuPG is
   Copyright (C) 1998-2003 Hallvard B. Furuseth.
   Copyright (C) 1992-1996 Regents of the University of Michigan.
   Copyright (C) 2000 Dimitrios Souflis
+  Copyright (C) 2008,2009,2010,2012-2016 William Ahern
 
   GnuPG is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by
@@ -145,6 +146,30 @@ TinySCHEME is part of the GnuPG package and is
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
+libdns is part of the GnuPG package and is
+
+  Copyright (c) 2008, 2009, 2010, 2012-2016  William Ahern
+
+  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.
+
+
 SQLite has
 
   been put into the public-domain by its author D. Richard Hipp: