diff --git a/LEGAL b/LEGAL
index 752b500be2..f238c7dd84 100644
--- a/LEGAL
+++ b/LEGAL
@@ -200,7 +200,7 @@ configure::
 
   This file is free software.
 
-    Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
+    Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
 
     This configure script is free software; the Free Software Foundation
     gives unlimited permission to copy, distribute and modify it.
@@ -211,12 +211,11 @@ tool/config.sub::
   As long as you distribute these files with the file configure, they
   are covered under the Ruby's license.
 
-      Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999
-      Free Software Foundation, Inc.
+    Copyright 1992-2018 Free Software Foundation, Inc.
 
     This file 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
+    the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful, but
@@ -225,13 +224,14 @@ tool/config.sub::
     General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+    along with this program; if not, see <https://www.gnu.org/licenses/>.
 
     As a special exception to the GNU General Public License, if you
     distribute this file as part of a program that contains a
     configuration script generated by Autoconf, you may include it under
-    the same distribution terms that you use for the rest of that program.
+    the same distribution terms that you use for the rest of that
+    program.  This Exception is an additional permission under section 7
+    of the GNU General Public License, version 3 ("GPLv3").
 
 parse.c::
 
@@ -239,36 +239,33 @@ parse.c::
   redistributed under the terms of the Ruby license, as permitted by the
   exception to the GPL below.
 
-     Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
-     Free Software Foundation, Inc.
+    Copyright (C) 1984, 1989-1990, 2000-2015, 2018 Free Software Foundation, Inc.
 
-     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, or (at your option)
-     any later version.
+    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 3 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.
+    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 program; if not, write to the Free Software
-     Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.  */
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-     As a special exception, you may create a larger work that contains
-     part or all of the Bison parser skeleton and distribute that work
-     under terms of your choice, so long as that work isn't itself a
-     parser generator using the skeleton or a modified version thereof
-     as a parser skeleton.  Alternatively, if you modify or redistribute
-     the parser skeleton itself, you may (at your option) remove this
-     special exception, which will cause the skeleton and the resulting
-     Bison output files to be licensed under the GNU General Public
-     License without this special exception.
+    As a special exception, you may create a larger work that contains
+    part or all of the Bison parser skeleton and distribute that work
+    under terms of your choice, so long as that work isn't itself a
+    parser generator using the skeleton or a modified version thereof
+    as a parser skeleton.  Alternatively, if you modify or redistribute
+    the parser skeleton itself, you may (at your option) remove this
+    special exception, which will cause the skeleton and the resulting
+    Bison output files to be licensed under the GNU General Public
+    License without this special exception.
 
-     This special exception was added by the Free Software Foundation in
-     version 2.2 of Bison.
+    This special exception was added by the Free Software Foundation in
+    version 2.2 of Bison.
 
 util.c (partly)::