version 3.5.1

* NEWS: Record release date.

.prev-version

@@ -1 +1 @@
-3.4.91
+3.5

.travis.yml

@@ -1,14 +1,8 @@
-# Travis defines and exports CC and CXX *after* we have defined our
+version: ~> 1.0
-# environment variables via 'env'.  So, do not use 'env' to define them.
-# Instead, put their definitions in MATRIX_EVAL, which we eval after the
-# definitions from Travis.
-language: cpp
 
-env:
+# If the language is set to C or C++, Travis defines and exports CC
-  global:
+# and CXX *after* we have defined our environment variables via 'env'.
-    # ICC serial number.
+language: minimal
-    # See https://github.com/nemequ/icc-travis.
-    secure: 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
 
 # Run in two steps:
 # 1. Build the tarball
@@ -87,7 +81,9 @@ jobs:
             - sourceline: 'ppa:ubuntu-toolchain-r/test'
           packages: g++-9
       env:
-        - MATRIX_EVAL="CC=gcc-9 && CXX=g++-9 && CONFIGUREFLAGS='CPPFLAGS=-DNDEBUG CFLAGS=-O3 CXXFLAGS=-O3'"
+        - CC=gcc-9
+        - CXX=g++-9
+        - CONFIGUREFLAGS='CPPFLAGS=-DNDEBUG CFLAGS=-O3 CXXFLAGS=-O3'
 
     # ASAN is time consuming, and we timeout the 50min granted by
     # Travis if we run all the tests in one go.  Run in two parts.
@@ -108,7 +104,8 @@ jobs:
             - libc++abi-9-dev
       env:
         # Do not use ASAN with ubuntu's libc++: https://bugs.llvm.org/show_bug.cgi?id=17379
-        - MATRIX_EVAL="CC='clang-9 -fsanitize=address' CXX='clang++-9 -fsanitize=address -stdlib=libc++'"
+        - CC='clang-9 -fsanitize=address'
+        - CXX='clang++-9 -fsanitize=address -stdlib=libc++'
         - PART=1
 
     - name: "Clang 9 libc++ and ASAN part 2"
@@ -118,26 +115,26 @@ jobs:
       addons: *clang9
       env:
         # Do not use ASAN with ubuntu's libc++: https://bugs.llvm.org/show_bug.cgi?id=17379
-        - MATRIX_EVAL="CC='clang-9 -fsanitize=address' CXX='clang++-9 -fsanitize=address -stdlib=libc++'"
+        - CC='clang-9 -fsanitize=address'
+        - CXX='clang++-9 -fsanitize=address -stdlib=libc++'
         - PART=2
 
-    # Currently no longer works (https://github.com/nemequ/icc-travis/issues/15).
+    - name: "ICC"
-    # - name: "ICC"
+      stage: check
-    #   stage: check
+      os: linux
-    #   # We need the build-aux/install-icc.sh script.
+      compiler: icc
-    #   git:
+      env:
-    #     clone: true
+        - CC=icc
-    #     submodules: false
+        - CXX=icpc
-    #     depth: 1
+      install:
-    #   os: linux
+        - source /opt/intel/inteloneapi/compiler/latest/env/vars.sh
-    #   dist: xenial
+      addons:
-    #   env:
+        apt:
-    #     # ICC's warnings are often very wrong (e.g., it thinks foo ?
+          sources:
-    #     # "bar" : "baz" is char* instead of const char*), so don't try
+          - sourceline: 'deb https://apt.repos.intel.com/oneapi all main'
-    #     # to work around the, and obviously, don't die on them.
+            key_url: 'https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB'
-    #     - MATRIX_EVAL="CC=icc && CXX=icpc"
+          packages:
-    #     - MAKE_ARGS='WERROR_CFLAGS= WERROR_CXXFLAGS='
+          - intel-oneapi-icc
-
 
     ## ----- ##
     ## GCC.  ##
@@ -150,7 +147,8 @@ jobs:
         apt:
           packages: g++-8
       env:
-        - MATRIX_EVAL="CC='gcc-8 -fsanitize=undefined,address -fno-omit-frame-pointer' CXX='g++-8 -fsanitize=undefined,address -fno-omit-frame-pointer'"
+        - CC='gcc-8 -fsanitize=undefined,address -fno-omit-frame-pointer'
+        - CXX='g++-8 -fsanitize=undefined,address -fno-omit-frame-pointer'
         - CONFIGUREFLAGS='CFLAGS=-O1 CXXFLAGS=-O1'
         - PART=1
 
@@ -162,7 +160,8 @@ jobs:
         apt:
           packages: g++-8
       env:
-        - MATRIX_EVAL="CC=gcc-8 && CXX=g++-8"
+        - CC=gcc-8
+        - CXX=g++-8
 
     - name: "GCC 7"
       stage: check
@@ -172,7 +171,8 @@ jobs:
         apt:
           packages: g++-7
       env:
-        - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7"
+        - CC=gcc-7
+        - CXX=g++-7
 
     - name: "GCC 6"
       stage: check
@@ -183,7 +183,8 @@ jobs:
           sources: ubuntu-toolchain-r-test
           packages: g++-6
       env:
-        - MATRIX_EVAL="CC=gcc-6 && CXX=g++-6"
+        - CC=gcc-6
+        - CXX=g++-6
 
     - name: "GCC 5"
       stage: check
@@ -194,7 +195,8 @@ jobs:
           sources: ubuntu-toolchain-r-test
           packages: g++-5
       env:
-         - MATRIX_EVAL="CC=gcc-5 && CXX=g++-5"
+         - CC=gcc-5
+         - CXX=g++-5
 
     - name: "GCC 4.9"
       stage: check
@@ -205,7 +207,8 @@ jobs:
           sources: ubuntu-toolchain-r-test
           packages: g++-4.9
       env:
-         - MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9"
+         - CC=gcc-4.9
+         - CXX=g++-4.9
 
     - name: "GCC 4.8"
       stage: check
@@ -216,7 +219,8 @@ jobs:
           sources: ubuntu-toolchain-r-test
           packages: g++-4.8
       env:
-         - MATRIX_EVAL="CC=gcc-4.8 && CXX=g++-4.8"
+         - CC=gcc-4.8
+         - CXX=g++-4.8
 
     - name: "GCC 4.7"
       stage: check
@@ -227,7 +231,8 @@ jobs:
           sources: ubuntu-toolchain-r-test
           packages: g++-4.7
       env:
-         - MATRIX_EVAL="CC=gcc-4.7 && CXX=g++-4.7"
+         - CC=gcc-4.7
+         - CXX=g++-4.7
 
     - name: "GCC 4.6"
       stage: check
@@ -238,7 +243,8 @@ jobs:
           sources: ubuntu-toolchain-r-test
           packages: g++-4.6
       env:
-         - MATRIX_EVAL="CC=gcc-4.6 && CXX=g++-4.6"
+         - CC=gcc-4.6
+         - CXX=g++-4.6
 
     ## ------- ##
     ## Clang.  ##
@@ -255,7 +261,8 @@ jobs:
             - libc++-8-dev
             - libc++abi-8-dev
       env:
-        - MATRIX_EVAL="CC=clang-8 && CXX='clang++-8 -stdlib=libc++'"
+        - CC=clang-8
+        - CXX='clang++-8 -stdlib=libc++'
         - CONFIGUREFLAGS='CPPFLAGS=-DNDEBUG CFLAGS=-O3 CXXFLAGS=-O3'
 
     - name: "Clang 7"
@@ -269,7 +276,8 @@ jobs:
             - libc++-7-dev
             - libc++abi-7-dev
       env:
-        - MATRIX_EVAL="CC=clang-7 && CXX='clang++-7 -stdlib=libc++'"
+        - CC=clang-7
+        - CXX='clang++-7 -stdlib=libc++'
 
     - name: "Clang 6 and libc++"
       stage: check
@@ -284,7 +292,8 @@ jobs:
             - clang-6.0
             - libc++-dev
       env:
-        - MATRIX_EVAL="CC=clang-6.0 && CXX='clang++-6.0 -stdlib=libc++'"
+        - CC=clang-6.0
+        - CXX='clang++-6.0 -stdlib=libc++'
 
     - name: "Clang 5"
       stage: check
@@ -297,7 +306,8 @@ jobs:
             - clang-5.0
             - libc++-dev
       env:
-        - MATRIX_EVAL="CC='clang-5.0' CXX='clang++-5.0'"
+        - CC='clang-5.0'
+        - CXX='clang++-5.0'
 
     - name: "Clang 4"
       stage: check
@@ -308,7 +318,8 @@ jobs:
           sources: llvm-toolchain-xenial-4.0
           packages: clang-4.0
       env:
-        - MATRIX_EVAL="CC=clang-4.0 && CXX=clang++-4.0"
+        - CC=clang-4.0
+        - CXX=clang++-4.0
 
     - name: "Clang 3.9"
       stage: check
@@ -319,7 +330,8 @@ jobs:
           sources: llvm-toolchain-xenial-3.9
           packages: clang-3.9
       env:
-        - MATRIX_EVAL="CC=clang-3.9 && CXX=clang++-3.9"
+        - CC=clang-3.9
+        - CXX=clang++-3.9
 
     - name: "Clang 3.8"
       stage: check
@@ -332,7 +344,8 @@ jobs:
             - llvm-toolchain-precise-3.8
           packages: clang-3.8
       env:
-        - MATRIX_EVAL="CC=clang-3.8 && CXX=clang++-3.8"
+        - CC=clang-3.8
+        - CXX=clang++-3.8
 
     - name: "CLang 3.7"
       stage: check
@@ -345,7 +358,8 @@ jobs:
             - llvm-toolchain-precise-3.7
           packages: clang-3.7
       env:
-        - MATRIX_EVAL="CC=clang-3.7 && CXX=clang++-3.7"
+        - CC=clang-3.7
+        - CXX=clang++-3.7
 
     - name: "Clang 3.6"
       stage: check
@@ -358,7 +372,8 @@ jobs:
             - llvm-toolchain-precise-3.6
           packages: clang-3.6
       env:
-        - MATRIX_EVAL="CC=clang-3.6 && CXX=clang++-3.6"
+        - CC=clang-3.6
+        - CXX=clang++-3.6
 
     - name: "Clang 3.5"
       stage: check
@@ -371,7 +386,8 @@ jobs:
             - llvm-toolchain-precise-3.5
           packages: clang-3.5
       env:
-        - MATRIX_EVAL="CC=clang-3.5 && CXX=clang++-3.5"
+        - CC=clang-3.5
+        - CXX=clang++-3.5
 
     - name: "Clang 3.4"
       stage: check
@@ -384,7 +400,8 @@ jobs:
       env:
         # No versioned name installed, but beware that Travis installs
         # a more modern clang earlier in the default PATH.
-        - MATRIX_EVAL='CC=/usr/bin/clang && CXX=/usr/bin/clang++'
+        - CC=/usr/bin/clang
+        - CXX=/usr/bin/clang++
 
     - name: "Clang 3.3"
       stage: check
@@ -396,7 +413,8 @@ jobs:
           packages: clang-3.3
       env:
         # See comment for 3.4.
-        - MATRIX_EVAL='CC=/usr/bin/clang && CXX=/usr/bin/clang++'
+        - CC=/usr/bin/clang
+        - CXX=/usr/bin/clang++
 
 ## From https://docs.gitlab.com/ce/ci/ssh_keys/#ssh-keys-when-using-the-docker-executor.
 ## Applies to Travis too.  Applied to all the 'script's (of all the jobs).
@@ -414,13 +432,9 @@ before_script:
 
 # Applies only to the jobs that don't have a 'script', i.e., applies to all the 'check' jobs, but not the 'dist' one.
 script:
-  - eval "$MATRIX_EVAL"
   # Beware not too leak $SSH_PRIVATE_KEY.
   # - env
   - sudo apt-get install -qq doxygen flex m4
-  # Install and activate ICC.
-  - if [[ $CC == "icc" ]]; then build-aux/install-icc.sh; fi
-  - if [[ -f ~/.bashrc ]]; then source ~/.bashrc; fi
   # Install and activate dmd.
   - mkdir -p ~/dlang && wget https://dlang.org/install.sh -O ~/dlang/install.sh
   - source $(source ~/dlang/install.sh dmd -a)
@@ -452,6 +466,3 @@ script:
   - if test ${PART-1} = 1; then make check                  VERBOSE=1 TESTSUITEFLAGS=-j2 || { cat test-suite.log && cat tests/testsuite.log && false; }; fi
   - if test ${PART-2} = 2; then make maintainer-check-posix VERBOSE=1 TESTSUITEFLAGS=-j2 || { cat tests/testsuite.log && false; }; fi
   - if test ${PART-2} = 2; then make maintainer-check-g++   VERBOSE=1 TESTSUITEFLAGS=-j2 || { cat tests/testsuite.log && false; }; fi
-
-after_script:
-  - uninstall_intel_software || true

AUTHORS

@@ -24,7 +24,7 @@ and nasty bugs.
 
 -----
 
-Copyright (C) 1998-2015, 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 1998-2015, 2018-2020 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 

ChangeLog-2012

@@ -26733,7 +26733,7 @@
 
 	-----
 
-	Copyright (C) 1987-1988, 1991-2015, 2018-2019 Free Software
+	Copyright (C) 1987-1988, 1991-2015, 2018-2020 Free Software
 	Foundation, Inc.
 
 	Copying and distribution of this file, with or without

Makefile.am

@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in.
 
-# Copyright (C) 2001-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015, 2018-2020 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

NEWS

@@ -1,6 +1,26 @@
 GNU Bison NEWS
 
-* Noteworthy changes in release 3.4.92 (2019-12-08) [beta]
+* Noteworthy changes in release 3.5.1 (2020-01-19) [stable]
+
+** Bug fixes
+
+  Portability fixes.
+
+  Fix compiler warnings.
+
+* Noteworthy changes in release 3.5 (2019-12-11) [stable]
+
+** Backward incompatible changes
+
+  Lone carriage-return characters (aka \r or ^M) in the grammar files are no
+  longer treated as end-of-lines.  This changes the diagnostics, and in
+  particular their locations.
+
+  In C++, line numbers and columns are now represented as 'int' not
+  'unsigned', so that integer overflow on positions is easily checkable via
+  'gcc -fsanitize=undefined' and the like.  This affects the API for
+  positions.  The default position and location classes now expose
+  'counter_type' (int), used to define line and column numbers.
 
 ** Deprecated features
 
@@ -8,7 +28,44 @@ GNU Bison NEWS
   obsoleted long ago by %printer, introduced in Bison 1.50 (November 2002).
   It is deprecated and its support will be removed eventually.
 
-** New Features
+** New features
+
+*** Lookahead correction in C++
+
+  Contributed by Adrian Vogelsgesang.
+
+  The C++ deterministic skeleton (lalr1.cc) now supports LAC, via the
+  %define variable parse.lac.
+
+*** Variable api.token.raw: Optimized token numbers (all skeletons)
+
+  In the generated parsers, tokens have two numbers: the "external" token
+  number as returned by yylex (which starts at 257), and the "internal"
+  symbol number (which starts at 3).  Each time yylex is called, a table
+  lookup maps the external token number to the internal symbol number.
+
+  When the %define variable api.token.raw is set, tokens are assigned their
+  internal number, which saves one table lookup per token, and also saves
+  the generation of the mapping table.
+
+  The gain is typically moderate, but in extreme cases (very simple user
+  actions), a 10% improvement can be observed.
+
+*** Generated parsers use better types for states
+
+  Stacks now use the best integral type for state numbers, instead of always
+  using 15 bits.  As a result "small" parsers now have a smaller memory
+  footprint (they use 8 bits), and there is support for large automata (16
+  bits), and extra large (using int, i.e., typically 31 bits).
+
+*** Generated parsers prefer signed integer types
+
+  Bison skeletons now prefer signed to unsigned integer types when either
+  will do, as the signed types are less error-prone and allow for better
+  checking with 'gcc -fsanitize=undefined'.  Also, the types chosen are now
+  portable to unusual machines where char, short and int are all the same
+  width.  On non-GNU platforms this may entail including <limits.h> and (if
+  available) <stdint.h> to define integer types and constants.
 
 *** A skeleton for the D programming language
 
@@ -24,30 +81,12 @@ GNU Bison NEWS
   The lalr1.d skeleton *is functional*, and works well, as demonstrated in
   examples/d/calc.d.  Please try it, enjoy it, and... commit to support it.
 
-** Changes
+*** Debug traces in Java
 
-*** Debugging glr.c and glr.cc
+  The Java backend no longer emits code and data for parser tracing if the
+  %define variable parse.trace is not defined.
 
-  The glr.c skeleton always had asserts to check its own behavior (not the
+** Diagnostics
-  user's).  These assertions are now under the control of the parse.assert
-  %define variable (disabled by default).
-
-*** Clean up
-
-  Several new compiler warnings in the generated output have been avoided.
-  Some unused features are no longer emitted.  Cleaner generated code in
-  general.
-
-** Bug Fixes
-
-*** Crashes when reporting verbose error messages
-
-  In theory, parsers using %nonassoc could crash. This unlikely bug has been
-  fixed.
-
-* Noteworthy changes in release 3.4.91 (2019-11-20) [beta]
-
-** New Features
 
 *** New diagnostic: -Wdangling-alias
 
@@ -98,7 +137,7 @@ GNU Bison NEWS
     %%
     expr:
 
-  gives, with -Wyacc
+  gives with -Wyacc
 
     input.y:2.15-20: warning: POSIX yacc reserves %type to nonterminals [-Wyacc]
         2 | %type  <ival> TOKEN1 TOKEN2 't'
@@ -110,50 +149,9 @@ GNU Bison NEWS
         2 | %type  <ival> TOKEN1 TOKEN2 't'
           |                      ^~~~~~
 
-* Noteworthy changes in release 3.4.90 (2019-10-29) [beta]
-
-** Backward incompatible changes
-
-  Lone carriage-return characters (aka \r or ^M) in the grammar files are no
-  longer treated as end-of-lines.  This changes the diagnostics, and in
-  particular their locations.
-
-  In C++, line numbers and columns are now represented as 'int' not
-  'unsigned', so that integer overflow on positions is easily checkable via
-  'gcc -fsanitize=undefined' and the like.  This affects the API for
-  positions.  The default position and location classes now expose
-  'counter_type' (int), used to define line and column numbers.
-
-** Bug fixes
-
-  In Java, %define api.prefix was ignored.  It now behaves as expected.
-
-** New features
-
-*** Lookahead correction in C++
-
-  Contributed by Adrian Vogelsgesang.
-
-  The C++ deterministic skeleton (lalr1.cc) now supports LAC, via the
-  %define variable parse.lac.
-
-*** Variable api.token.raw: Optimized token numbers (all skeletons)
-
-  In the generated parsers, tokens have two numbers: the "external" token
-  number as returned by yylex (which starts at 257), and the "internal"
-  symbol number (which starts at 3).  Each time yylex is called, a table
-  lookup maps the external token number to the internal symbol number.
-
-  When the %define variable api.token.raw is set, tokens are assigned their
-  internal number, which saves one table lookup per token, and also saves
-  the generation of the mapping table.
-
-  The gain is typically moderate, but in extreme cases (very simple user
-  actions), a 10% improvement can be observed.
-
 *** Diagnostics with insertion
 
-  The diagnostics now display suggestion below the underlined source.
+  The diagnostics now display the suggestion below the underlined source.
   Replacement for undeclared symbols are now also suggested.
 
     $ cat /tmp/foo.y
@@ -194,26 +192,28 @@ GNU Bison NEWS
         1 | %token FOO                     …
           |        ^~~
 
-*** Debug traces in Java
+** Changes
 
-  The Java backend no longer emits code and data for parser tracing if the
+*** Debugging glr.c and glr.cc
-  %define variable parse.trace is not defined.
 
-*** Generated parsers prefer signed integer types
+  The glr.c skeleton always had asserts to check its own behavior (not the
+  user's).  These assertions are now under the control of the parse.assert
+  %define variable (disabled by default).
 
-  Bison skeletons now prefer signed to unsigned integer types when either
+*** Clean up
-  will do, as the signed types are less error-prone and allow for better
-  checking with 'gcc -fsanitize=undefined'.  Also, the types chosen are now
-  portable to unusual machines where char, short and int are all the same
-  width.  On non-GNU platforms this may entail including <limits.h> and (if
-  available) <stdint.h> to define integer types and constants.
 
-*** Generated parsers use better types for states
+  Several new compiler warnings in the generated output have been avoided.
+  Some unused features are no longer emitted.  Cleaner generated code in
+  general.
 
-  Stacks now use the best integral type for state numbers, instead of always
+** Bug Fixes
-  using 15 bits.  As a result "small" parsers now have a smaller memory
+
-  footprint (they use 8 bits), and there is support for large automata (16
+  Portability issues in the test suite.
-  bits), and extra large (using int, i.e., typically 31 bits).
+
+  In theory, parsers using %nonassoc could crash when reporting verbose
+  error messages. This unlikely bug has been fixed.
+
+  In Java, %define api.prefix was ignored.  It now behaves as expected.
 
 * Noteworthy changes in release 3.4.2 (2019-09-12) [stable]
 
@@ -3819,7 +3819,7 @@ Output file does not redefine const for C++.
 
 -----
 
-Copyright (C) 1995-2015, 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 1995-2015, 2018-2020 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Parser Generator.
 

PACKAGING

@@ -36,7 +36,7 @@ to the bison package.
 
 -----
 
-Copyright (C) 2002, 2005, 2009-2015, 2018-2019 Free Software Foundation,
+Copyright (C) 2002, 2005, 2009-2015, 2018-2020 Free Software Foundation,
 Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.

README

@@ -80,7 +80,7 @@ that the range specifies every single year in that closed interval.
 
 <!--
 
-Copyright (C) 1992, 1998-1999, 2003-2005, 2008-2015, 2018-2019 Free
+Copyright (C) 1992, 1998-1999, 2003-2005, 2008-2015, 2018-2020 Free
 Software Foundation, Inc.
 
 This file is part of GNU bison, the GNU Compiler Compiler.

README-alpha

@@ -12,7 +12,7 @@ the problems you encounter.
 
 -----
 
-Copyright (C) 2002, 2004, 2009-2015, 2018-2019 Free Software Foundation,
+Copyright (C) 2002, 2004, 2009-2015, 2018-2020 Free Software Foundation,
 Inc.
 
 This file is part of GNU Bison.

README-hacking.md

@@ -507,7 +507,7 @@ Push these changes.
 
 <!--
 
-Copyright (C) 2002-2005, 2007-2015, 2018-2019 Free Software Foundation,
+Copyright (C) 2002-2005, 2007-2015, 2018-2020 Free Software Foundation,
 Inc.
 
 This file is part of GNU Bison.

THANKS

@@ -60,6 +60,7 @@ Enrico Scholz             [email protected]
 Eric Blake                [email protected]
 Eric S. Raymond           [email protected]
 Étienne Renault           [email protected]
+Evan Nemerson             [email protected]
 Evgeny Stambulchik        [email protected]
 Fabrice Bauzac            [email protected]
 Ferdinand Thiessen        [email protected]
@@ -79,6 +80,7 @@ Hans Åberg                [email protected]
 Horst Von Brand           [email protected]
 Jan Nieuwenhuizen         [email protected]
 Jannick                   [email protected]
+Jeff Hammond              [email protected]
 Jerry Quinn               [email protected]
 Jesse Thilo               [email protected]
 Jim Kent                  [email protected]
@@ -219,7 +221,7 @@ End:
 
 -----
 
-Copyright (C) 2000-2015, 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2000-2015, 2018-2020 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Parser Generator.
 

TODO

@@ -1,4 +1,4 @@
-* Bison 3.5
+* Bison 3.6
 ** doc
 I feel its ugly to use the GNU style to declare functions in the doc.  It
 generates tons of white space in the page, and may contribute to bad page
@@ -50,12 +50,72 @@ syntax error, unexpected $end, expecting ↦ or 🎅🐃 or '\n'
 While at it, we should stop using "$end" by default, in favor of "end of
 file", or "end of input", whatever.  See how lalr1.java does that.
 
+** consistency
+token vs terminal, variable vs non terminal.
+
+** Stop indentation in diagnostics
+Before Bison 2.7, we printed "flatly" the dependencies in long diagnostics:
+
+    input.y:2.7-12: %type redeclaration for exp
+    input.y:1.7-12: previous declaration
+
+In Bison 2.7, we indented them
+
+    input.y:2.7-12: error: %type redeclaration for exp
+    input.y:1.7-12:     previous declaration
+
+Later we quoted the source in the diagnostics, and today we have:
+
+    /tmp/foo.y:1.12-14: warning: symbol FOO redeclared [-Wother]
+        1 | %token FOO FOO
+          |            ^~~
+    /tmp/foo.y:1.8-10:      previous declaration
+        1 | %token FOO FOO
+          |        ^~~
+
+The indentation is no longer helping.  We should probably get rid of it, or
+maybe keep it only when -fno-caret. GCC displays this as a "note":
+
+    $ g++-mp-9 -Wall /tmp/foo.c -c
+    /tmp/foo.c:1:10: error: redefinition of 'int foo'
+        1 | int foo, foo;
+          |          ^~~
+    /tmp/foo.c:1:5: note: 'int foo' previously declared here
+        1 | int foo, foo;
+          |     ^~~
+
+Likewise for Clang, contrary to what I believed (because "note:" is written
+in black, so it doesn't show in my terminal :-)
+
+    $ clang++-mp-8.0 -Wall /tmp/foo.c -c
+    clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated [-Wdeprecated]
+    /tmp/foo.c:1:10: error: redefinition of 'foo'
+    int foo, foo;
+             ^
+    /tmp/foo.c:1:5: note: previous definition is here
+    int foo, foo;
+        ^
+    1 error generated.
+
+See also the item "Complaint submessage indentation" below.
+
 ** api.token.raw
 Maybe we should exhibit the YYUNDEFTOK token.  It could also be assigned a
 semantic value so that yyerror could be used to report invalid lexemes.
 See also the item "$undefined" below.
 
-* Bison 3.6
+** C++
+Move to int everywhere instead of unsigned?  stack_size, etc.  The parser
+itself uses int (for yylen for instance), yet stack is based on size_t.
+
+Maybe locations should also move to ints.
+
+Paul Eggert already covered most of this.  But before publishing these
+changes, we need to ask our C++ users if they agree with that change, or if
+we need some migration path.  Could be a %define variable, or simply
+%require "3.5".
+
+* Bison 3.7
 ** Unit rules / Injection rules (Akim Demaille)
 Maybe we could expand unit rules (or "injections", see
 https://homepages.cwi.nl/~daybuild/daily-books/syntax/2-sdf/sdf.html), i.e.,
@@ -137,52 +197,6 @@ $ ./tests/testsuite -l | grep errors | sed q
 ** Get rid of YYPRINT and b4_toknum
 Besides yytoknum is wrong when api.token.raw is defined.
 
-** Stop indentation in diagnostics
-Before Bison 2.7, we printed "flatly" the dependencies in long diagnostics:
-
-    input.y:2.7-12: %type redeclaration for exp
-    input.y:1.7-12: previous declaration
-
-In Bison 2.7, we indented them
-
-    input.y:2.7-12: error: %type redeclaration for exp
-    input.y:1.7-12:     previous declaration
-
-Later we quoted the source in the diagnostics, and today we have:
-
-    /tmp/foo.y:1.12-14: warning: symbol FOO redeclared [-Wother]
-        1 | %token FOO FOO
-          |            ^~~
-    /tmp/foo.y:1.8-10:      previous declaration
-        1 | %token FOO FOO
-          |        ^~~
-
-The indentation is no longer helping.  We should probably get rid of it, or
-maybe keep it only when -fno-caret. GCC displays this as a "note":
-
-    $ g++-mp-9 -Wall /tmp/foo.c -c
-    /tmp/foo.c:1:10: error: redefinition of 'int foo'
-        1 | int foo, foo;
-          |          ^~~
-    /tmp/foo.c:1:5: note: 'int foo' previously declared here
-        1 | int foo, foo;
-          |     ^~~
-
-Likewise for Clang, contrary to what I believed (because "note:" is written
-in black, so it doesn't show in my terminal :-)
-
-    $ clang++-mp-8.0 -Wall /tmp/foo.c -c
-    clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated [-Wdeprecated]
-    /tmp/foo.c:1:10: error: redefinition of 'foo'
-    int foo, foo;
-             ^
-    /tmp/foo.c:1:5: note: previous definition is here
-    int foo, foo;
-        ^
-    1 error generated.
-
-See also the item "Complaint submessage indentation" below.
-
 ** Better design for diagnostics
 The current implementation of diagnostics is adhoc, it grew organically.  It
 works as a series of calls to several functions, with dependency of the
@@ -217,20 +231,6 @@ page:
 
 https://gcc.gnu.org/onlinedocs/gcc/Diagnostic-Message-Formatting-Options.html
 
-** consistency
-token vs terminal, variable vs non terminal.
-
-** C++
-Move to int everywhere instead of unsigned?  stack_size, etc.  The parser
-itself uses int (for yylen for instance), yet stack is based on size_t.
-
-Maybe locations should also move to ints.
-
-Paul Eggert already covered most of this.  But before publishing these
-changes, we need to ask our C++ users if they agree with that change, or if
-we need some migration path.  Could be a %define variable, or simply
-%require "3.5".
-
 ** Graphviz display code thoughts
 The code for the --graph option is over two files: print_graph, and
 graphviz. This is because Bison used to also produce VCG graphs, but since
@@ -603,23 +603,6 @@ to bison. If you're interested, I'll work on a patch.
 * Better graphics
 Equip the parser with a means to create the (visual) parse tree.
 
-* Complaint submessage indentation.
-We already have an implementation that works fairly well for named
-reference messages, but it would be nice to use it consistently for all
-submessages from Bison.  For example, the "previous definition"
-submessage or the list of correct values for a %define variable might
-look better with indentation.
-
-However, the current implementation makes the assumption that the
-location printed on the first line is not usually much shorter than the
-locations printed on the submessage lines that follow.  That assumption
-may not hold true as often for some kinds of submessages especially if
-we ever support multiple grammar files.
-
-Here's a proposal for how a new implementation might look:
-
-  http://lists.gnu.org/archive/html/bison-patches/2009-09/msg00086.html
-
 
 Local Variables:
 mode: outline
@@ -629,7 +612,7 @@ End:
 
 -----
 
-Copyright (C) 2001-2004, 2006, 2008-2015, 2018-2019 Free Software
+Copyright (C) 2001-2004, 2006, 2008-2015, 2018-2020 Free Software
 Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.

bootstrap

@@ -4,7 +4,7 @@ scriptversion=2019-01-04.17; # UTC
 
 # Bootstrap this package from checked-out sources.
 
-# Copyright (C) 2003-2019 Free Software Foundation, Inc.
+# Copyright (C) 2003-2020 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

bootstrap.conf

@@ -1,6 +1,6 @@
 # Bootstrap configuration.
 
-# Copyright (C) 2006-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2006-2015, 2018-2020 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

build-aux/Darwin.valgrind

@@ -1,4 +1,4 @@
-# Copyright (C) 2012-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015, 2018-2020 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

build-aux/Linux.valgrind

@@ -1,4 +1,4 @@
-# Copyright (C) 2012-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015, 2018-2020 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

build-aux/cross-options.pl

@@ -1,5 +1,24 @@
 #! /usr/bin/env perl
 
+# Generate a release announcement message.
+
+# Copyright (C) 2007-2020 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 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# Written by Akimn Demaille.
+
 use warnings;
 use 5.005;
 use strict;

build-aux/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2000-2015, 2018-2019 Free Software Foundation, Inc.
+## Copyright (C) 2000-2015, 2018-2020 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

build-aux/update-b4-copyright

@@ -3,7 +3,7 @@
 # Update b4_copyright invocations or b4_copyright_years definitions to
 # include the current year.
 
-# Copyright (C) 2009-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2009-2015, 2018-2020 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

build-aux/update-package-copyright-year

@@ -2,7 +2,7 @@
 
 # In configure.ac, update PACKAGE_COPYRIGHT_YEAR to the current year.
 
-# Copyright (C) 2010-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2010-2015, 2018-2020 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

build-aux/update-test

@@ -1,5 +1,24 @@
 #! /usr/bin/env python
 
+# Update expectations in an Autotest test suite.
+
+# Copyright (C) 2019-2020 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 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# Written by Akim Demaille.
+
 # usage:
 #
 #    update-test _build/8d/tests/testsuite.dir/*/testsuite.log

cfg.mk

@@ -1,5 +1,5 @@
 ## Customize maint.mk                           -*- makefile -*-
-## Copyright (C) 2008-2015, 2018-2019 Free Software Foundation, Inc.
+## Copyright (C) 2008-2015, 2018-2020 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

configure.ac

@@ -1,6 +1,6 @@
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #
-# Copyright (C) 2001-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015, 2018-2020 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
@@ -26,8 +26,10 @@ m4_pattern_allow([^BISON_USE_NLS$])
 
 AC_INIT([GNU Bison],
         m4_esyscmd([build-aux/git-version-gen .tarball-version]),
-        [[email protected]])
+        [[email protected]],
-AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2019])
+        [],
+        [https://www.gnu.org/software/bison/])
+AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2020])
 AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR],
                    [The copyright year for this package])
 
@@ -100,12 +102,41 @@ if test "$enable_gcc_warnings" = yes; then
   # -Wno-tautological-constant-out-of-range-compare for Clang 3.3 and
   # 3.4 on GNU/Linux that choke on intprops.h's INT_MULTIPLY_WRAPV,
   # etc.
-  warn_common='-Wall -Wextra -Wcast-align
+  #
+  # ICC: -wr188
+  #
+  # 1669  warnings warnings_default =
+  # ../src/complain.c(318): error #188: enumerated type mixed with another type
+  # 1670      Wconflicts_sr | Wconflicts_rr | Wdeprecated | Wother;
+  # 1671      ^
+  # 1672
+  # 1673../src/complain.c(393): error #188: enumerated type mixed with another type
+  # 1674          warnings w = 1 << wbit;
+  # 1675                       ^
+  #
+  # ICC: -wr3179
+  #
+  # char const *usefulness
+  #   = rule_useless_in_grammar_p (&rules[r]) ? "useless-in-grammar"
+  #   : rule_useless_in_parser_p (&rules[r])  ? "useless-in-parser"
+  #   :                                         "useful";
+  #
+  # gives
+  #
+  # error #3179: deprecated conversion of string literal to char* (should be const char*)
+  #
+  # ICC: -wr2259 (that's in C, in spite of what the error messages which seems to be about C++).
+  # error #2259: non-pointer conversion from "int" to "yybool={signed char}" may lose significant bits
+  #   yybool yynormal YY_ATTRIBUTE_UNUSED = yystackp->yysplitPoint == YY_NULLPTR;
+  #                                         ^
+  warn_common='-Wall -Wextra
+    -Wcast-align -Wchar-subscripts
     -fparse-all-comments -Wdocumentation
     -Wformat -Wimplicit-fallthrough -Wnull-dereference
     -Wno-sign-compare -Wno-tautological-constant-out-of-range-compare
     -Wpointer-arith -Wshadow
-    -Wwrite-strings'
+    -Wwrite-strings
+    -wr188 -wr2259 -wr3179'
   warn_c='-Wbad-function-cast -Wstrict-prototypes'
   warn_cxx='-Wextra-semi -Wnoexcept -Wold-style-cast -Wundefined-func-template
     -Wweak-vtables'

data/README.md

@@ -174,7 +174,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2002, 2008-2015, 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2002, 2008-2015, 2018-2020 Free Software Foundation, Inc.
 
 This file is part of GNU Bison.
 

data/bison-default.css

@@ -1,5 +1,5 @@
 /* Default styling rules for Bison when doing terminal output.
-   Copyright (C) 2019 Free Software Foundation, Inc.
+   Copyright (C) 2019-2020 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

data/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2002, 2005-2015, 2018-2019 Free Software Foundation,
+## Copyright (C) 2002, 2005-2015, 2018-2020 Free Software Foundation,
 ## Inc.
 
 ## This program is free software: you can redistribute it and/or modify

data/skeletons/bison.m4

@@ -2,7 +2,7 @@
 
 # Language-independent M4 Macros for Bison.
 
-# Copyright (C) 2002, 2004-2015, 2018-2019 Free Software Foundation,
+# Copyright (C) 2002, 2004-2015, 2018-2020 Free Software Foundation,
 # Inc.
 
 # This program is free software: you can redistribute it and/or modify
@@ -975,8 +975,8 @@ m4_define([b4_percent_code_get],
 [m4_pushdef([b4_macro_name], [[b4_percent_code(]$1[)]])dnl
 m4_ifval([$1], [m4_define([b4_percent_code_bison_qualifiers(]$1[)])])dnl
 m4_ifdef(b4_macro_name,
-[b4_comment([m4_if([$#], [0], [[Unqualified %code]],
+[b4_comment(m4_if([$#], [0], [[[Unqualified %code blocks.]]],
-                   [["%code ]$1["]])[ blocks.]])
+                  [[["%code ]$1[" blocks.]]]))
 b4_user_code([m4_indir(b4_macro_name)])])dnl
 m4_popdef([b4_macro_name])])
 

data/skeletons/c++-skel.m4

@@ -2,7 +2,7 @@
 
 # C++ skeleton dispatching for Bison.
 
-# Copyright (C) 2006-2007, 2009-2015, 2018-2019 Free Software
+# Copyright (C) 2006-2007, 2009-2015, 2018-2020 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify

data/skeletons/c++.m4

@@ -2,7 +2,7 @@
 
 # C++ skeleton for Bison
 
-# Copyright (C) 2002-2019 Free Software Foundation, Inc.
+# Copyright (C) 2002-2020 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
@@ -514,7 +514,7 @@ m4_define([b4_yytranslate_define],
   ]b4_parser_class[::yytranslate_ (int t)
   {
 ]b4_api_token_raw_if(
-[[    return static_cast<yy::parser::token_number_type> (t);]],
+[[    return static_cast<token_number_type> (t);]],
 [[    // YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to
     // TOKEN-NUM as returned by yylex.
     static

data/skeletons/c-like.m4

@@ -2,7 +2,7 @@
 
 # Common code for C-like languages (C, C++, Java, etc.)
 
-# Copyright (C) 2012-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015, 2018-2020 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

data/skeletons/c-skel.m4

@@ -2,7 +2,7 @@
 
 # C skeleton dispatching for Bison.
 
-# Copyright (C) 2006-2007, 2009-2015, 2018-2019 Free Software
+# Copyright (C) 2006-2007, 2009-2015, 2018-2020 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify

data/skeletons/c.m4

@@ -2,7 +2,7 @@
 
 # C M4 Macros for Bison.
 
-# Copyright (C) 2002, 2004-2015, 2018-2019 Free Software Foundation,
+# Copyright (C) 2002, 2004-2015, 2018-2020 Free Software Foundation,
 # Inc.
 
 # This program is free software: you can redistribute it and/or modify

data/skeletons/d-skel.m4

@@ -2,7 +2,7 @@
 
 # D skeleton dispatching for Bison.
 
-# Copyright (C) 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2018-2020 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

data/skeletons/d.m4

@@ -2,7 +2,7 @@
 
 # D language support for Bison
 
-# Copyright (C) 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2018-2020 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

data/skeletons/glr.c

@@ -2,7 +2,7 @@
 
 # GLR skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2020 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
@@ -198,7 +198,7 @@ b4_glr_cc_if([],
 [b4_defines_if(
 [b4_output_begin([b4_spec_header_file])
 b4_copyright([Skeleton interface for Bison GLR parsers in C],
-             [2002-2015, 2018-2019])[
+             [2002-2015, 2018-2020])[
 ]b4_cpp_guard_open([b4_spec_header_file])[
 ]b4_shared_declarations[
 ]b4_cpp_guard_close([b4_spec_header_file])[
@@ -212,7 +212,7 @@ b4_copyright([Skeleton interface for Bison GLR parsers in C],
 
 b4_output_begin([b4_parser_file_name])
 b4_copyright([Skeleton implementation for Bison GLR parsers in C],
-             [2002-2015, 2018-2019])[
+             [2002-2015, 2018-2020])[
 /* C GLR parser skeleton written by Paul Hilfinger.  */
 
 ]b4_disclaimer[
@@ -1985,7 +1985,8 @@ yyprocessOneStack (yyGLRStack* yystackp, ptrdiff_t yyk,
   while (yystackp->yytops.yystates[yyk] != YY_NULLPTR)
     {
       yyStateNum yystate = yystackp->yytops.yystates[yyk]->yylrState;
-      YY_DPRINTF ((stderr, "Stack %ld Entering state %d\n", yyk, yystate));
+      YY_DPRINTF ((stderr, "Stack %ld Entering state %d\n",
+                   YY_CAST (long, yyk), yystate));
 
       YY_ASSERT (yystate != YYFINAL);
 

data/skeletons/glr.cc

@@ -1,6 +1,6 @@
 # C++ GLR skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2020 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
@@ -265,6 +265,13 @@ b4_percent_code_get([[requires]])[
 # pragma GCC diagnostic ignored "-Wold-style-cast"
 #endif
 
+// On MacOS, PTRDIFF_MAX is defined as long long, which Clang's
+// -pedantic reports as being a C++11 extension.
+#if defined __APPLE__ && YY_CPLUSPLUS < 201103L \
+    && defined __clang__ && 4 <= __clang_major__
+# pragma clang diagnostic ignored "-Wc++11-long-long"
+#endif
+
 // Whether we are compiled with exception support.
 #ifndef YY_EXCEPTIONS
 # if defined __GNUC__ && !defined __EXCEPTIONS
@@ -361,7 +368,7 @@ b4_percent_define_flag_if([[global_tokens_and_yystype]],
 b4_defines_if(
 [b4_output_begin([b4_spec_header_file])
 b4_copyright([Skeleton interface for Bison GLR parsers in C++],
-             [2002-2015, 2018-2019])[
+             [2002-2015, 2018-2020])[
 // C++ GLR parser skeleton written by Akim Demaille.
 
 ]b4_disclaimer[

data/skeletons/java-skel.m4

@@ -2,7 +2,7 @@
 
 # Java skeleton dispatching for Bison.
 
-# Copyright (C) 2007, 2009-2015, 2018-2019 Free Software Foundation,
+# Copyright (C) 2007, 2009-2015, 2018-2020 Free Software Foundation,
 # Inc.
 
 # This program is free software: you can redistribute it and/or modify

data/skeletons/java.m4

@@ -2,7 +2,7 @@
 
 # Java language support for Bison
 
-# Copyright (C) 2007-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2007-2015, 2018-2020 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

data/skeletons/lalr1.cc

@@ -1,6 +1,6 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2020 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
@@ -143,7 +143,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))])])
 
 
 m4_pushdef([b4_copyright_years],
-           [2002-2015, 2018-2019])
+           [2002-2015, 2018-2020])
 
 m4_define([b4_parser_class],
           [b4_percent_define_get([[api.parser.class]])])
@@ -269,7 +269,7 @@ m4_define([b4_shared_declarations],
 
     /// Convert a scanner token number \a t to a symbol number.
     /// In theory \a t should be a token_type, but character literals
-    /// are valid, yet not member of the token_type enum.
+    /// are valid, yet not members of the token_type enum.
     static token_number_type yytranslate_ (int t);
 
     // Tables.
@@ -640,7 +640,7 @@ m4_if(b4_prefix, [yy], [],
     if (state == empty_state)
       return empty_symbol;
     else
-      return yystos_[state];
+      return yystos_[+state];
   }
 
   ]b4_parser_class[::stack_symbol_type::stack_symbol_type ()
@@ -866,7 +866,7 @@ b4_dollar_popdef])[]dnl
   `-----------*/
   yybackup:
     // Try to take a decision without lookahead.
-    yyn = yypact_[yystack_[0].state];
+    yyn = yypact_[+yystack_[0].state];
     if (yy_pact_value_is_default_ (yyn))
       goto yydefault;
 
@@ -921,7 +921,7 @@ b4_dollar_popdef])[]dnl
       --yyerrstatus_;
 
     // Shift the lookahead token.
-    yypush_ ("Shifting", static_cast<state_type> (yyn), YY_MOVE (yyla));]b4_lac_if([[
+    yypush_ ("Shifting", state_type (yyn), YY_MOVE (yyla));]b4_lac_if([[
     yy_lac_discard_ ("shift");]])[
     goto yynewstate;
 
@@ -930,7 +930,7 @@ b4_dollar_popdef])[]dnl
   | yydefault -- do the default action for the current state.  |
   `-----------------------------------------------------------*/
   yydefault:
-    yyn = yydefact_[yystack_[0].state];
+    yyn = yydefact_[+yystack_[0].state];
     if (yyn == 0)
       goto yyerrlab;
     goto yyreduce;
@@ -1057,7 +1057,7 @@ b4_dollar_popdef])[]dnl
       stack_symbol_type error_token;
       for (;;)
         {
-          yyn = yypact_[yystack_[0].state];
+          yyn = yypact_[+yystack_[0].state];
           if (!yy_pact_value_is_default_ (yyn))
             {
               yyn += yy_error_token_;
@@ -1084,7 +1084,7 @@ b4_dollar_popdef])[]dnl
 
       // Shift the error token.]b4_lac_if([[
       yy_lac_discard_ ("error recovery");]])[
-      error_token.state = static_cast<state_type> (yyn);
+      error_token.state = state_type (yyn);
       yypush_ ("Shifting", YY_MOVE (error_token));
     }
     goto yynewstate;
@@ -1166,13 +1166,13 @@ b4_dollar_popdef])[]dnl
         state_type top_state = (yylac_stack_.empty ()
                                 ? yystack_[lac_top].state
                                 : yylac_stack_.back ());
-        int yyrule = yypact_[top_state];
+        int yyrule = yypact_[+top_state];
         if (yy_pact_value_is_default_ (yyrule)
             || (yyrule += yytoken) < 0 || yylast_ < yyrule
             || yycheck_[yyrule] != yytoken)
           {
             // Use the default action.
-            yyrule = yydefact_[top_state];
+            yyrule = yydefact_[+top_state];
             if (yyrule == 0)
               {
                 YYCDEBUG << " Err\n";
@@ -1345,7 +1345,7 @@ b4_error_verbose_if([state_type yystate, const symbol_type& yyla],
           yy_lac_check_ (yytoken);
 #endif]])[
 
-        int yyn = yypact_[yystate];
+        int yyn = yypact_[+yystate];
         if (!yy_pact_value_is_default_ (yyn))
           {]b4_lac_if([[
             for (int yyx = 0; yyx < yyntokens_; ++yyx)

data/skeletons/lalr1.d

@@ -1,6 +1,6 @@
 # D skeleton for Bison -*- autoconf -*-
 
-# Copyright (C) 2007-2012, 2019 Free Software Foundation, Inc.
+# Copyright (C) 2007-2012, 2019-2020 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
@@ -20,7 +20,7 @@ m4_include(b4_skeletonsdir/[d.m4])
 
 b4_output_begin([b4_parser_file_name])
 b4_copyright([Skeleton implementation for Bison LALR(1) parsers in D],
-             [2007-2012, 2019])[
+             [2007-2012, 2019-2020])[
 
 ]b4_percent_define_ifdef([package], [module b4_percent_define_get([package]);
 ])[

data/skeletons/lalr1.java

@@ -1,6 +1,6 @@
 # Java skeleton for Bison                           -*- autoconf -*-
 
-# Copyright (C) 2007-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2007-2015, 2018-2020 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
@@ -78,7 +78,7 @@ m4_define([b4_define_state],[[
 
 ]b4_output_begin([b4_parser_file_name])[
 ]b4_copyright([Skeleton implementation for Bison LALR(1) parsers in Java],
-              [2007-2015, 2018-2019])[
+              [2007-2015, 2018-2020])[
 ]b4_percent_define_ifdef([package], [package b4_percent_define_get([package]);[
 ]])[
 ]b4_user_pre_prologue[

data/skeletons/location.cc

@@ -1,6 +1,6 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2020 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
@@ -16,7 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 m4_pushdef([b4_copyright_years],
-           [2002-2015, 2018-2019])
+           [2002-2015, 2018-2020])
 
 
 # b4_position_file

data/skeletons/stack.hh

@@ -1,6 +1,6 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2020 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

data/skeletons/variant.hh

@@ -1,6 +1,6 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2020 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

data/skeletons/yacc.c

@@ -1,11 +1,11 @@
 #                                                            -*- C -*-
 # Yacc compatible skeleton for Bison
 
-# Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2019 Free Software
+# Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2020 Free Software
 # Foundation, Inc.
 
 m4_pushdef([b4_copyright_years],
-           [1984, 1989-1990, 2000-2015, 2018-2019])
+           [1984, 1989-1990, 2000-2015, 2018-2020])
 
 # 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
@@ -755,7 +755,7 @@ do {                                                            \
     {
       YYFPRINTF (stderr, "   $%d = ", yyi + 1);
       yy_symbol_print (stderr,
-                       yystos[yyssp[yyi + 1 - yynrhs]],
+                       yystos[+yyssp[yyi + 1 - yynrhs]],
                        &]b4_rhs_value(yynrhs, yyi + 1)[
                        ]b4_locations_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl
                        b4_user_args[);
@@ -955,12 +955,12 @@ yy_lac (yy_state_t *yyesa, yy_state_t **yyes,
     }
   while (1)
     {
-      int yyrule = yypact[*yyesp];
+      int yyrule = yypact[+*yyesp];
       if (yypact_value_is_default (yyrule)
           || (yyrule += yytoken) < 0 || YYLAST < yyrule
           || yycheck[yyrule] != yytoken)
         {
-          yyrule = yydefact[*yyesp];
+          yyrule = yydefact[+*yyesp];
           if (yyrule == 0)
             {
               YYDPRINTF ((stderr, " Err\n"));
@@ -1184,7 +1184,7 @@ yysyntax_error (YYPTRDIFF_T *yymsg_alloc, char **yymsg,
   */
   if (yytoken != YYEMPTY)
     {
-      int yyn = yypact[*yyssp];
+      int yyn = yypact[+*yyssp];
       YYPTRDIFF_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]);
       yysize = yysize0;]b4_lac_if([[
       YYDPRINTF ((stderr, "Constructing syntax error message\n"));]])[
@@ -1940,7 +1940,7 @@ yyreturn:
   while (yyssp != yyss)
     {
       yydestruct ("Cleanup: popping",
-                  yystos[*yyssp], yyvsp]b4_locations_if([, yylsp])[]b4_user_args[);
+                  yystos[+*yyssp], yyvsp]b4_locations_if([, yylsp])[]b4_user_args[);
       YYPOPSTACK (1);
     }
 #ifndef yyoverflow

data/xslt/bison.xsl

@@ -3,7 +3,7 @@
 <!--
     bison.xsl - common templates for Bison XSLT.
 
-    Copyright (C) 2007-2015, 2018-2019 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015, 2018-2020 Free Software Foundation, Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 

data/xslt/xml2dot.xsl

@@ -3,7 +3,7 @@
 <!--
     xml2dot.xsl - transform Bison XML Report into DOT.
 
-    Copyright (C) 2007-2015, 2018-2019 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015, 2018-2020 Free Software Foundation, Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 

data/xslt/xml2text.xsl

@@ -3,7 +3,7 @@
 <!--
     xml2text.xsl - transform Bison XML Report into plain text.
 
-    Copyright (C) 2007-2015, 2018-2019 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015, 2018-2020 Free Software Foundation, Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 

data/xslt/xml2xhtml.xsl

@@ -3,7 +3,7 @@
 <!--
     xml2html.xsl - transform Bison XML Report into XHTML.
 
-    Copyright (C) 2007-2015, 2018-2019 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015, 2018-2020 Free Software Foundation, Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 

doc/.gitignore

@@ -16,6 +16,7 @@
 /bison.help
 /bison.html
 /bison.info
+/bison.info.bak
 /bison.log
 /bison.pdf
 /bison.ps

doc/bison.texi

@@ -79,7 +79,7 @@
 This manual (@value{UPDATED}) is for GNU Bison (version @value{VERSION}),
 the GNU parser generator.
 
-Copyright @copyright{} 1988-1993, 1995, 1998-2015, 2018-2019 Free
+Copyright @copyright{} 1988--1993, 1995, 1998--2015, 2018--2020 Free
 Software Foundation, Inc.
 
 @quotation
@@ -9971,10 +9971,30 @@ When a Bison grammar compiles properly but parses ``incorrectly'', the
 
 @node Enabling Traces
 @subsection  Enabling Traces
-There are several means to enable compilation of trace facilities:
+There are several means to enable compilation of trace facilities, in
+decresing order of preference:
 
 @table @asis
-@item the macro @code{YYDEBUG}
+@item the variable @samp{parse.trace}
+@findex %define parse.trace
+Add the @samp{%define parse.trace} directive (@pxref{%define
+Summary,,parse.trace}), or pass the @option{-Dparse.trace} option
+(@pxref{Tuning the Parser}).  This is a Bison extension.  Unless POSIX and
+Yacc portability matter to you, this is the preferred solution.
+
+@item the option @option{-t} (POSIX Yacc compliant)
+@itemx the option @option{--debug} (Bison extension)
+Use the @samp{-t} option when you run Bison (@pxref{Invocation, ,Invoking
+Bison}).  With @samp{%define api.prefix @{c@}}, it defines @code{CDEBUG} to
+1, otherwise it defines @code{YYDEBUG} to 1.
+
+@item the directive @samp{%debug} (deprecated)
+@findex %debug
+Add the @code{%debug} directive (@pxref{Decl Summary, ,Bison Declaration
+Summary}).  This Bison extension is maintained for backward compatibility
+with previous versions of Bison; use @code{%define parse.trace} instead.
+
+@item the macro @code{YYDEBUG} (C/C++ only)
 @findex YYDEBUG
 Define the macro @code{YYDEBUG} to a nonzero value when you compile the
 parser.  This is compliant with POSIX Yacc.  You could use
@@ -9984,87 +10004,66 @@ Prologue}).
 
 If the @code{%define} variable @code{api.prefix} is used (@pxref{Multiple
 Parsers, ,Multiple Parsers in the Same Program}), for instance @samp{%define
-api.prefix x}, then if @code{CDEBUG} is defined, its value controls the
+api.prefix @{c@}}, then if @code{CDEBUG} is defined, its value controls the
 tracing feature (enabled if and only if nonzero); otherwise tracing is
 enabled if and only if @code{YYDEBUG} is nonzero.
-
-@item the option @option{-t} (POSIX Yacc compliant)
-@itemx the option @option{--debug} (Bison extension)
-Use the @samp{-t} option when you run Bison (@pxref{Invocation, ,Invoking
-Bison}).  With @samp{%define api.prefix @{c@}}, it defines @code{CDEBUG} to 1,
-otherwise it defines @code{YYDEBUG} to 1.
-
-@item the directive @samp{%debug}
-@findex %debug
-Add the @code{%debug} directive (@pxref{Decl Summary, ,Bison Declaration
-Summary}).  This Bison extension is maintained for backward
-compatibility with previous versions of Bison.
-
-@item the variable @samp{parse.trace}
-@findex %define parse.trace
-Add the @samp{%define parse.trace} directive (@pxref{%define
-Summary,,parse.trace}), or pass the @option{-Dparse.trace} option
-(@pxref{Tuning the Parser}).  This is a Bison extension, which is especially
-useful for languages that don't use a preprocessor.  Unless POSIX and Yacc
-portability matter to you, this is the preferred solution.
 @end table
 
 We suggest that you always enable the trace option so that debugging is
 always possible.
 
 @findex YYFPRINTF
-The trace facility outputs messages with macro calls of the form
+In C the trace facility outputs messages with macro calls of the form
-@code{YYFPRINTF (stderr, @var{format}, @var{args})} where
+@code{YYFPRINTF (stderr, @var{format}, @var{args})} where @var{format} and
-@var{format} and @var{args} are the usual @code{printf} format and variadic
+@var{args} are the usual @code{printf} format and variadic arguments.  If
-arguments.  If you define @code{YYDEBUG} to a nonzero value but do not
+you define @code{YYDEBUG} to a nonzero value but do not define
-define @code{YYFPRINTF}, @code{<stdio.h>} is automatically included
+@code{YYFPRINTF}, @code{<stdio.h>} is automatically included and
-and @code{YYFPRINTF} is defined to @code{fprintf}.
+@code{YYFPRINTF} is defined to @code{fprintf}.
 
-Once you have compiled the program with trace facilities, the way to
+Once you have compiled the program with trace facilities, the way to request
-request a trace is to store a nonzero value in the variable @code{yydebug}.
+a trace is to store a nonzero value in the variable @code{yydebug}.  You can
-You can do this by making the C code do it (in @code{main}, perhaps), or
+do this by making the C code do it (in @code{main}, perhaps), or you can
-you can alter the value with a C debugger.
+alter the value with a C debugger.
 
-Each step taken by the parser when @code{yydebug} is nonzero produces a
+Each step taken by the parser when @code{yydebug} is nonzero produces a line
-line or two of trace information, written on @code{stderr}.  The trace
+or two of trace information, written on @code{stderr}.  The trace messages
-messages tell you these things:
+tell you these things:
 
 @itemize @bullet
 @item
 Each time the parser calls @code{yylex}, what kind of token was read.
 
 @item
-Each time a token is shifted, the depth and complete contents of the
+Each time a token is shifted, the depth and complete contents of the state
-state stack (@pxref{Parser States}).
+stack (@pxref{Parser States}).
 
 @item
-Each time a rule is reduced, which rule it is, and the complete contents
+Each time a rule is reduced, which rule it is, and the complete contents of
-of the state stack afterward.
+the state stack afterward.
 @end itemize
 
 To make sense of this information, it helps to refer to the automaton
-description file (@pxref{Understanding, ,Understanding Your Parser}).
+description file (@pxref{Understanding, ,Understanding Your Parser}).  This
-This file shows the meaning of each state in terms of
+file shows the meaning of each state in terms of positions in various rules,
-positions in various rules, and also what each state will do with each
+and also what each state will do with each possible input token.  As you
-possible input token.  As you read the successive trace messages, you
+read the successive trace messages, you can see that the parser is
-can see that the parser is functioning according to its specification in
+functioning according to its specification in the listing file.  Eventually
-the listing file.  Eventually you will arrive at the place where
+you will arrive at the place where something undesirable happens, and you
-something undesirable happens, and you will see which parts of the
+will see which parts of the grammar are to blame.
-grammar are to blame.
 
 The parser implementation file is a C/C++/Java program and you can use
 debuggers on it, but it's not easy to interpret what it is doing.  The
-parser function is a finite-state machine interpreter, and aside from
+parser function is a finite-state machine interpreter, and aside from the
-the actions it executes the same code over and over.  Only the values
+actions it executes the same code over and over.  Only the values of
-of variables show where in the grammar it is working.
+variables show where in the grammar it is working.
 
 @node Mfcalc Traces
 @subsection Enabling Debug Traces for @code{mfcalc}
 
 The debugging information normally gives the token type of each token read,
 but not its semantic value.  The @code{%printer} directive allows specify
-how semantic values are reported, see @ref{Printer Decl, , Printing
+how semantic values are reported, see @ref{Printer Decl, , Printing Semantic
-Semantic Values}.
+Values}.
 
 As a demonstration of @code{%printer}, consider the multi-function
 calculator, @code{mfcalc} (@pxref{Multi-function Calc}).  To enable run-time
@@ -14169,7 +14168,7 @@ it.  Using @samp{%define parse.error verbose} is preferred
 @end deffn
 
 @deffn {Macro} YYFPRINTF
-Macro used to output run-time traces.
+Macro used to output run-time traces in C.
 @xref{Enabling Traces}.
 @end deffn
 

doc/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2001-2003, 2005-2015, 2018-2019 Free Software
+## Copyright (C) 2001-2003, 2005-2015, 2018-2020 Free Software
 ## Foundation, Inc.
 
 ## This program is free software: you can redistribute it and/or modify

doc/refcard.tex

@@ -19,7 +19,7 @@
 \def\finalout{\overfullrule=0pt}
 %\finalout
 
-% Copyright (c) 1998, 2001, 2009-2015, 2018-2019 Free Software
+% Copyright (c) 1998, 2001, 2009--2015, 2018--2020 Free Software
 % Foundation, Inc.
 %
 % This file is part of Bison.

etc/README

@@ -16,7 +16,7 @@ straightforward use of _build/src/bison would.)
 
 --
 
-Copyright (C) 2006, 2009-2015, 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2006, 2009-2015, 2018-2020 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 

etc/bench.pl.in

@@ -1,6 +1,6 @@
 #! /usr/bin/perl -w
 
-# Copyright (C) 2006, 2008-2015, 2018-2019 Free Software Foundation,
+# Copyright (C) 2006, 2008-2015, 2018-2020 Free Software Foundation,
 # Inc.
 #
 # This file is part of Bison, the GNU Compiler Compiler.

etc/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2006, 2008-2015, 2018-2019 Free Software Foundation,
+## Copyright (C) 2006, 2008-2015, 2018-2020 Free Software Foundation,
 ## Inc.
 
 ## This program is free software: you can redistribute it and/or modify

examples/README.md

@@ -17,7 +17,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2018-2020 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or

examples/c++/README.md

@@ -46,7 +46,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2018-2020 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or

examples/c++/calc++/README.md

@@ -36,7 +36,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2018-2020 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 

examples/c++/calc++/calc++.test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2005-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015, 2018-2020 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

examples/c++/calc++/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2005-2006, 2008-2015, 2018-2019 Free Software
+## Copyright (C) 2005-2006, 2008-2015, 2018-2020 Free Software
 ## Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify

examples/c++/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2019 Free Software Foundation, Inc.
+## Copyright (C) 2018-2020 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

examples/c++/variant-11.test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2018-2020 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

examples/c++/variant-11.yy

@@ -1,5 +1,5 @@
 /*
-  Copyright (C) 2008-2015, 2018-2019 Free Software Foundation, Inc.
+  Copyright (C) 2008-2015, 2018-2020 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

examples/c++/variant.test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2018-2020 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

examples/c++/variant.yy

@@ -1,5 +1,5 @@
 /*
-  Copyright (C) 2008-2015, 2018-2019 Free Software Foundation, Inc.
+  Copyright (C) 2008-2015, 2018-2020 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

examples/c/README.md

@@ -45,7 +45,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2018-2020 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or

examples/c/calc/README.md

@@ -9,7 +9,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2019 Free Software Foundation, Inc.
+Copyright (C) 2019-2020 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 

examples/c/calc/calc.test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2019 Free Software Foundation, Inc.
+# Copyright (C) 2019-2020 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

examples/c/calc/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2019 Free Software Foundation, Inc.
+## Copyright (C) 2019-2020 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

examples/c/lexcalc/README.md

@@ -9,7 +9,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2018-2020 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 

examples/c/lexcalc/lexcalc.test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2018-2020 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

examples/c/lexcalc/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2019 Free Software Foundation, Inc.
+## Copyright (C) 2018-2020 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

examples/c/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2019 Free Software Foundation, Inc.
+## Copyright (C) 2018-2020 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

examples/c/mfcalc/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2005-2006, 2008-2015, 2018-2019 Free Software
+## Copyright (C) 2005-2006, 2008-2015, 2018-2020 Free Software
 ## Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify

examples/c/mfcalc/mfcalc.test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2005-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015, 2018-2020 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

examples/c/reccalc/README.md

@@ -26,7 +26,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2018-2020 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 

examples/c/reccalc/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2019 Free Software Foundation, Inc.
+## Copyright (C) 2019-2020 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

examples/c/reccalc/reccalc.test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2018-2020 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
@@ -15,6 +15,8 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+seq 0 >/dev/null || exit 77
+
 cat >input <<EOF
 1+2*3
 EOF

examples/c/rpcalc/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2005-2006, 2008-2015, 2018-2019 Free Software
+## Copyright (C) 2005-2006, 2008-2015, 2018-2020 Free Software
 ## Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify

examples/c/rpcalc/rpcalc.test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2005-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015, 2018-2020 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

examples/d/README.md

@@ -15,7 +15,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2018-2020 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or

examples/d/calc.test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2018-2020 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

examples/d/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2019 Free Software Foundation, Inc.
+## Copyright (C) 2018-2020 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

examples/extexi

@@ -3,7 +3,7 @@
 
 # This file is part of GNU Bison
 
-# Copyright (C) 1992, 2000-2001, 2005-2006, 2009-2015, 2018-2019 Free
+# Copyright (C) 1992, 2000-2001, 2005-2006, 2009-2015, 2018-2020 Free
 # Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify

examples/java/Calc.test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2018-2020 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

examples/java/README.md

@@ -16,7 +16,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2019 Free Software Foundation, Inc.
+Copyright (C) 2018-2020 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or

examples/java/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2019 Free Software Foundation, Inc.
+## Copyright (C) 2018-2020 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

examples/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2005, 2008-2015, 2018-2019 Free Software Foundation,
+## Copyright (C) 2005, 2008-2015, 2018-2020 Free Software Foundation,
 ## Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify

examples/test

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2005-2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015, 2018-2020 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

lib/.gitignore

@@ -139,12 +139,15 @@
 /isnanl.c
 /iswblank.c
 /itold.c
+/lc-charset-dispatch.c
+/lc-charset-dispatch.h
 /ldexpl.c
 /libc-config.h
 /limits.h
 /limits.in.h
 /localcharset.c
 /localcharset.h
+/locale.in.h
 /localtime-buffer.c
 /localtime-buffer.h
 /lstat.c
@@ -158,10 +161,14 @@
 /mbchar.h
 /mbfile.c
 /mbfile.h
+/mbrtowc-impl-utf8.h
+/mbrtowc-impl.h
 /mbrtowc.c
 /mbsinit.c
 /mbswidth.c
 /mbswidth.h
+/mbtowc-lock.c
+/mbtowc-lock.h
 /memchr.c
 /memchr.valgrind
 /minmax.h
@@ -209,6 +216,9 @@
 /sched.h
 /sched.in.h
 /setenv.c
+/setlocale-lock.c
+/setlocale_null.c
+/setlocale_null.h
 /sig-handler.c
 /sig-handler.h
 /sigaction.c

lib/get-errno.c

@@ -1,6 +1,6 @@
 /* get-errno.c - get and set errno.
 
-   Copyright (C) 2002, 2006, 2009-2015, 2018-2019 Free Software
+   Copyright (C) 2002, 2006, 2009-2015, 2018-2020 Free Software
    Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify

lib/get-errno.h

@@ -1,6 +1,6 @@
 /* get-errno.h - get and set errno.
 
-   Copyright (C) 2002, 2009-2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2002, 2009-2015, 2018-2020 Free Software Foundation,
    Inc.
 
    This program is free software: you can redistribute it and/or modify

lib/local.mk

@@ -1,4 +1,4 @@
-## Copyright (C) 2001-2015, 2018-2019 Free Software Foundation, Inc.
+## Copyright (C) 2001-2015, 2018-2020 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

lib/main.c

@@ -1,6 +1,6 @@
 /* Yacc library main function.
 
-   Copyright (C) 2002, 2009-2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2002, 2009-2015, 2018-2020 Free Software Foundation,
    Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.

lib/path-join.c

@@ -1,5 +1,5 @@
 /* Concatenate path components.
-   Copyright (C) 2018-2019 Free Software Foundation, Inc.
+   Copyright (C) 2018-2020 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

lib/path-join.h

@@ -1,5 +1,5 @@
 /* Concatenate path components.
-   Copyright (C) 2018-2019 Free Software Foundation, Inc.
+   Copyright (C) 2018-2020 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

lib/timevar.def

@@ -1,7 +1,7 @@
 /* This file contains the definitions for timing variables used to -*- C -*-
    measure run-time performance of the compiler.
 
-   Copyright (C) 2002, 2007, 2009-2015, 2018-2019 Free Software
+   Copyright (C) 2002, 2007, 2009-2015, 2018-2020 Free Software
    Foundation, Inc.
 
    Contributed by Akim Demaille <akim@freefriends.org>.

lib/yyerror.c

@@ -1,6 +1,6 @@
 /* Yacc library error-printing function.
 
-   Copyright (C) 2002, 2009-2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2002, 2009-2015, 2018-2020 Free Software Foundation,
    Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.