--- a/contrib/update-copyright.py	Thu Oct 25 07:37:49 2018 +0900
+++ b/contrib/update-copyright.py	Thu Feb 13 11:34:05 2020 +0900
@@ -1,6 +1,6 @@
 #!/usr/bin/python
 #
-# Copyright (C) 2013-2018 Free Software Foundation, Inc.
+# Copyright (C) 2013-2020 Free Software Foundation, Inc.
 #
 # This script is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -75,6 +75,7 @@
                 'COPYING3',
                 'COPYING3.LIB',
                 'LICENSE',
+                'LICENSE.txt',
                 'fdl.texi',
                 'gpl_v3.texi',
                 'fdl-1.3.xml',
@@ -574,6 +575,7 @@
                 '.c',
                 '.C',
                 '.cc',
+                '.d',
                 '.h',
                 '.hs',
                 '.f',
@@ -616,6 +618,25 @@
                 'soft-fp',
                 ])
 
+class LibPhobosFilter (GenericFilter):
+    def __init__ (self):
+        GenericFilter.__init__ (self)
+
+        self.skip_files |= set ([
+                # Source module imported from upstream.
+                'object.d',
+                ])
+
+        self.skip_dirs |= set ([
+                # Contains sources imported from upstream.
+                'core',
+                'etc',
+                'gc',
+                'gcstub',
+                'rt',
+                'std',
+                ])
+
 class LibStdCxxFilter (GenericFilter):
     def __init__ (self):
         GenericFilter.__init__ (self)
@@ -666,12 +687,14 @@
         self.add_external_author ('Cavium Networks.')
         self.add_external_author ('Faraday Technology Corp.')
         self.add_external_author ('Florida State University')
+        self.add_external_author ('Gerard Jungman')
         self.add_external_author ('Greg Colvin and Beman Dawes.')
         self.add_external_author ('Hewlett-Packard Company')
         self.add_external_author ('Intel Corporation')
         self.add_external_author ('Information Technology Industry Council.')
         self.add_external_author ('James Theiler, Brian Gough')
         self.add_external_author ('Makoto Matsumoto and Takuji Nishimura,')
+        self.add_external_author ('Mentor Graphics Corporation')
         self.add_external_author ('National Research Council of Canada.')
         self.add_external_author ('NVIDIA Corporation')
         self.add_external_author ('Peter Dimov and Multi Media Ltd.')
@@ -682,12 +705,14 @@
         self.add_external_author ('Silicon Graphics')
         self.add_external_author ('Stephen L. Moshier')
         self.add_external_author ('Sun Microsystems, Inc. All rights reserved.')
+        self.add_external_author ('The D Language Foundation, All Rights Reserved')
         self.add_external_author ('The Go Authors.  All rights reserved.')
         self.add_external_author ('The Go Authors. All rights reserved.')
         self.add_external_author ('The Go Authors.')
         self.add_external_author ('The Regents of the University of California.')
         self.add_external_author ('Unicode, Inc.')
         self.add_external_author ('University of Toronto.')
+        self.add_external_author ('Yoshinori Sato')
 
 class GCCCmdLine (CmdLine):
     def __init__ (self):
@@ -720,6 +745,7 @@
         self.add_dir ('libitm')
         self.add_dir ('libobjc')
         # liboffloadmic is imported from upstream.
+        self.add_dir ('libphobos', LibPhobosFilter())
         self.add_dir ('libquadmath')
         # libsanitizer is imported from upstream.
         self.add_dir ('libssp')
@@ -745,6 +771,7 @@
             'libiberty',
             'libitm',
             'libobjc',
+            'libphobos',
             'libssp',
             'libstdc++-v3',
             'libvtv',