b4_yaxx macro enables saving parsing trees into XML, tested on 1.875-3.0.4, see https://github.com/yijunyu/yaxx

2026-08-09 18:55:14 +00:00 · 2017-03-11 17:33:40 +00:00
217 changed files with 2634 additions and 3603 deletions
@@ -1 +1 @@
-3.0.5
+3.0.4
@@ -24,7 +24,7 @@ and nasty bugs.

 -----

-Copyright (C) 1998-2015, 2018 Free Software Foundation, Inc.
+Copyright (C) 1998-2015 Free Software Foundation, Inc.

 This file is part of Bison, the GNU Compiler Compiler.

@@ -26733,8 +26733,8 @@

 	-----

-	Copyright (C) 1987-1988, 1991-2015, 2018 Free Software
-	Foundation, Inc.
+	Copyright (C) 1987-1988, 1991-2015 Free Software Foundation,
+	Inc.

 	Copying and distribution of this file, with or without
 	modification, are permitted provided the copyright notice and this
@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in.

-# Copyright (C) 2001-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015 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
@@ -1,47 +1,8 @@
 GNU Bison NEWS

-* Noteworthy changes in release 3.1 (2018-08-27) [stable]
+* Noteworthy changes in release ?.? (????-??-??) [?]

-** Backward incompatible changes
-
-  Compiling Bison now requires a C99 compiler---as announced during the
-  release of Bison 3.0, five years ago.  Generated parsers do not require a
-  C99 compiler.
-
-  Support for DJGPP, which have been unmaintained and untested for years, is
-  obsolete. Unless there is activity to revive it, the next release of Bison
-  will have it removed.
-
-** New features
-
-*** Typed midrule actions
-
-  Because their type is unknown to Bison, the values of midrule actions are
-  not treated like the others: they don't have %printer and %destructor
-  support.  It also prevents C++ (Bison) variants to handle them properly.
-
-  Typed midrule actions address these issues.  Instead of:
-
-    exp: { $<ival>$ = 1; } { $<ival>$ = 2; }   { $$ = $<ival>1 + $<ival>2; }
-
-  write:
-
-    exp: <ival>{ $$ = 1; } <ival>{ $$ = 2; }   { $$ = $1 + $2; }
-
-*** Reports include the type of the symbols
-
-  The sections about terminal and nonterminal symbols of the '*.output' file
-  now specify their declared type.  For instance, for:
-
-    %token <ival> NUM
-
-  the report now shows '<ival>':
-
-    Terminals, with rules where they appear
-
-    NUM <ival> (258) 5
-
-*** Diagnostics about useless rules
+** Diagnostics about useless rules

  In the following grammar, the 'exp' nonterminal is trivially useless.  So,
  of course, its rules are useless too.
@@ -84,92 +45,6 @@ GNU Bison NEWS
     input: '0' | exp
                  ^^^

-*** C++: Generated parsers can be compiled with -fno-exceptions (lalr1.cc)
-
-  When compiled with exceptions disabled, the generated parsers no longer
-  uses try/catch clauses.
-
-  Currently only GCC and Clang are supported.
-
-** Documentation
-
-*** A demonstration of variants
-
-  A new example was added (installed in .../share/doc/bison/examples),
-  'variant.yy', which shows how to use (Bison) variants in C++.
-
-  The other examples were made nicer to read.
-
-*** Some features are no longer 'experimental'
-
-  The following features, mature enough, are no longer flagged as
-  experimental in the documentation: push parsers, default %printer and
-  %destructor (typed: <*> and untyped: <>), %define api.value.type union and
-  variant, Java parsers, XML output, LR family (lr, ielr, lalr), and
-  semantic predicates (%?).
-
-** Bug fixes
-
-*** GLR: Predicates support broken by #line directives
-
-  Predicates (%?) in GLR such as
-
-    widget:
-      %? {new_syntax} 'w' id new_args
-    | %?{!new_syntax} 'w' id old_args
-
-  were issued with #lines in the middle of C code.
-
-*** Printer and destructor with broken #line directives
-
-  The #line directives were not properly escaped when emitting the code for
-  %printer/%destructor, which resulted in compiler errors if there are
-  backslashes or double-quotes in the grammar file name.
-
-*** Portability on ICC
-
-  The Intel compiler claims compatibility with GCC, yet rejects its _Pragma.
-  Generated parsers now work around this.
-
-*** Various
-
-  There were several small fixes in the test suite and in the build system,
-  many warnings in bison and in the generated parsers were eliminated.  The
-  documentation also received its share of minor improvements.
-
-  Useless code was removed from C++ parsers, and some of the generated
-  constructors are more 'natural'.
-
-* Noteworthy changes in release 3.0.5 (2018-05-27) [stable]
-
-** Bug fixes
-
-*** C++: Fix support of 'syntax_error'
-
-  One incorrect 'inline' resulted in linking errors about the constructor of
-  the syntax_error exception.
-
-*** C++: Fix warnings
-
-  GCC 7.3 (with -O1 or -O2 but not -O0 or -O3) issued null-dereference
-  warnings about yyformat being possibly null.  It also warned about the
-  deprecated implicit definition of copy constructors when there's a
-  user-defined (copy) assignment operator.
-
-*** Location of errors
-
-  In C++ parsers, out-of-bounds errors can happen when a rule with an empty
-  ride-hand side raises a syntax error.  The behavior of the default parser
-  (yacc.c) in such a condition was undefined.
-
-  Now all the parsers match the behavior of glr.c: @$ is used as the
-  location of the error.  This handles gracefully rules with and without
-  rhs.
-
-*** Portability fixes in the test suite
-
-  On some platforms, some Java and/or C++ tests were failing.
-
 * Noteworthy changes in release 3.0.4 (2015-01-23) [stable]

 ** Bug fixes
@@ -231,7 +106,7 @@ GNU Bison NEWS
  extracted from the documentation:

   - rpcalc
-     Reverse Polish Calculator, a simple introductory example.
+     Reverse polish calculator, a simple introductory example.
   - mfcalc
     Multi-function Calc, a calculator with memory and functions and located
     error messages.
@@ -2918,7 +2793,7 @@ Output file does not redefine const for C++.

 -----

-Copyright (C) 1995-2015, 2018 Free Software Foundation, Inc.
+Copyright (C) 1995-2015 Free Software Foundation, Inc.

 This file is part of Bison, the GNU Parser Generator.

@@ -36,7 +36,7 @@ to the bison package.

 -----

-Copyright (C) 2002, 2005, 2009-2015, 2018 Free Software Foundation, Inc.
+Copyright (C) 2002, 2005, 2009-2015 Free Software Foundation, Inc.

 This file is part of Bison, the GNU Compiler Compiler.

@@ -7,7 +7,7 @@ instructions.

 Bison requires GNU m4 1.4.6 or later.  See:

-      https://ftp.gnu.org/gnu/m4/m4-1.4.6.tar.gz
+      ftp://ftp.gnu.org/gnu/m4/m4-1.4.6.tar.gz

 ** Internationalization
 Bison supports two catalogues: one for Bison itself (i.e., for the
@@ -37,14 +37,14 @@ test case in each bug report.
 For any copyright year range specified as YYYY-ZZZZ in this package,
 note that the range specifies every single year in that closed interval.

-----

 Local Variables:
 mode: outline
-fill-column: 76
 End:

-Copyright (C) 1992, 1998-1999, 2003-2005, 2008-2015, 2018 Free Software
+-----
+
+Copyright (C) 1992, 1998-1999, 2003-2005, 2008-2015 Free Software
 Foundation, Inc.

 This file is part of Bison, the GNU Compiler Compiler.
@@ -12,7 +12,7 @@ the problems you encounter.

 -----

-Copyright (C) 2002, 2004, 2009-2015, 2018 Free Software Foundation, Inc.
+Copyright (C) 2002, 2004, 2009-2015 Free Software Foundation, Inc.

 This file is part of GNU Bison.

@@ -9,19 +9,19 @@ Everything related to the development of Bison is on Savannah:
 * Administrivia

 ** If you incorporate a change from somebody on the net:
-First, if it is a large change, you must make sure they have signed the
-appropriate paperwork.  Second, be sure to add their name and email address
-to THANKS.
+First, if it is a large change, you must make sure they have signed
+the appropriate paperwork.  Second, be sure to add their name and
+email address to THANKS.

 ** If a change fixes a test, mention the test in the commit message.

 ** Bug reports
-If somebody reports a new bug, mention his name in the commit message and in
-the test case you write.  Put him into THANKS.
+If somebody reports a new bug, mention his name in the commit message
+and in the test case you write.  Put him into THANKS.

-The correct response to most actual bugs is to write a new test case which
-demonstrates the bug.  Then fix the bug, re-run the test suite, and check
-everything in.
+The correct response to most actual bugs is to write a new test case
+which demonstrates the bug.  Then fix the bug, re-run the test suite,
+and check everything in.


 * Hacking
@@ -30,17 +30,17 @@ everything in.
 Which include serious bug fixes, must be mentioned in NEWS.

 ** Translations
-Only user visible strings are to be translated: error messages, bits of the
-.output file etc.  This excludes impossible error messages (comparable to
-assert/abort), and all the --trace output which is meant for the maintainers
-only.
+Only user visible strings are to be translated: error messages, bits
+of the .output file etc.  This excludes impossible error messages
+(comparable to assert/abort), and all the --trace output which is
+meant for the maintainers only.

 ** Horizontal tabs
 Do not add horizontal tab characters to any file in Bison's repository
 except where required.  For example, do not use tabs to format C code.
-However, make files, ChangeLog, and some regular expressions require tabs.
-Also, test cases might need to contain tabs to check that Bison properly
-processes tabs in its input.
+However, make files, ChangeLog, and some regular expressions require
+tabs.  Also, test cases might need to contain tabs to check that Bison
+properly processes tabs in its input.


 * Working from the repository
@@ -103,16 +103,14 @@ to perform the first checkout of the submodules, run

       $ git submodule update --init

+Git submodule support is weak before versions 1.6 and later, upgrade Git if
+your version is older.
+
 The next step is to get other files needed to build, which are
 extracted from other source packages:

        $ ./bootstrap

-Bootstrapping updates the submodules to the versions registered in the
-top-level directory.  To change gnulib, first check out the version you want
-in `gnulib`, then commit this change in Bison's repository, and finally run
-bootstrap.
-
 If it fails with missing symbols (e.g., "error: possibly undefined macro:
 AC_PROG_GNU_M4"), you are likely to have forgotten the submodule
 initialization part.  Otherwise, there you are!  Just
@@ -139,12 +137,13 @@ explicitly by the user.
 *** Updating Bison

 If you pull a newer version of a branch, say via "git pull", you might
-import requests for updated submodules.  A simple "git diff" will reveal if
-the current version of the submodule (i.e., the actual contents of the
-gnulib directory) and the current request from the subscriber (i.e., the
-reference of the version of gnulib that the Bison repository requests)
-differ.  To upgrade the submodules (i.e., to check out the version that is
-actually requested by the subscriber, run "git submodule update".
+import requests for updated submodules.  A simple "git diff" will
+reveal if the current version of the submodule (i.e., the actual
+contents of the gnulib directory) and the current request from the
+subscriber (i.e., the reference of the version of gnulib that the
+Bison repository requests) differ.  To upgrade the submodules (i.e.,
+to check out the version that is actually requested by the subscriber,
+run "git submodule update".

        $ git pull
        $ git submodule update
@@ -168,8 +167,8 @@ Register your changes.

        $ git checkin ...

-For a suggestion of what gnulib commit might be stable enough for a formal
-release, see the ChangeLog in the latest gnulib snapshot at:
+For a suggestion of what gnulib commit might be stable enough for a
+formal release, see the ChangeLog in the latest gnulib snapshot at:

        http://erislabs.net/ianb/projects/gnulib/

@@ -179,9 +178,9 @@ The Autoconf files we use are currently:
        lib/m4sugar/m4sugar.m4
        lib/m4sugar/foreach.m4

-These files don't change very often in Autoconf, so it should be relatively
-straight-forward to examine the differences in order to decide whether to
-update.
+These files don't change very often in Autoconf, so it should be
+relatively straight-forward to examine the differences in order to
+decide whether to update.

 * Test suite

@@ -244,99 +243,102 @@ suite.  So currently, do not try to run valgrind on Mac OS X.
 Try to run the test suite with more severe conditions before a
 release:

- Configure the package with --enable-gcc-warnings, so that one checks that
-  1. Bison compiles cleanly, 2. the parsers it produces compile cleanly too.
+- Configure the package with --enable-gcc-warnings, so that one checks
+  that 1. Bison compiles cleanly, 2. the parsers it produces compile
+  cleanly too.

- Maybe build with -DGNULIB_POSIXCHECK, which suggests gnulib modules that
-  can fix portability issues.  See if you really want to pay attention to
-  its warnings; there's no need to obey blindly to it
+- Maybe build with -DGNULIB_POSIXCHECK, which suggests gnulib modules
+  that can fix portability issues.  See if you really want to pay
+  attention to its warnings; there's no need to obey blindly to it
  (<http://lists.gnu.org/archive/html/bison-patches/2012-05/msg00057.html>).

- Check with "make syntax-check" if there are issues diagnosed by gnulib.
+- Check with "make syntax-check" if there are issues diagnosed by
+  gnulib.

 - run "make maintainer-check" which:
  - runs "valgrind -q bison" to run Bison under Valgrind.
  - runs the parsers under Valgrind.
  - runs the test suite with G++ as C compiler...

- run "make maintainer-push-check", which runs "make maintainer-check" while
-  activating the push implementation and its pull interface wrappers in many
-  test cases that were originally written to exercise only the pull
-  implementation.  This makes certain the push implementation can perform
-  every task the pull implementation can.
+- run "make maintainer-push-check", which runs "make maintainer-check"
+  while activating the push implementation and its pull interface wrappers
+  in many test cases that were originally written to exercise only the
+  pull implementation.  This makes certain the push implementation can
+  perform every task the pull implementation can.

- run "make maintainer-xml-check", which runs "make maintainer-check" while
-  checking Bison's XML automaton report for every working grammar passed to
-  Bison in the test suite.  The check just diffs the output of Bison's
-  included XSLT style sheets with the output of --report=all and --graph.
+- run "make maintainer-xml-check", which runs "make maintainer-check"
+  while checking Bison's XML automaton report for every working grammar
+  passed to Bison in the test suite.  The check just diffs the output of
+  Bison's included XSLT style sheets with the output of --report=all and
+  --graph.

 - running "make maintainer-release-check" takes care of running
  maintainer-check, maintainer-push-check and maintainer-xml-check.

- Change tests/atlocal/CFLAGS to add your preferred options.  For instance,
-  "-traditional" to check that the parsers are K&R.  Note that it does not
-  make sense for glr.c, which should be ANSI, but currently is actually GNU
-  C, nor for lalr1.cc.
+- Change tests/atlocal/CFLAGS to add your preferred options.  For
+  instance, "-traditional" to check that the parsers are K&R.  Note
+  that it does not make sense for glr.c, which should be ANSI, but
+  currently is actually GNU C, nor for lalr1.cc.

- Test with a very recent version of GCC for both C and C++.  Testing with
-  older versions that are still in use is nice too.
+- Test with a very recent version of GCC for both C and C++.  Testing
+  with older versions that are still in use is nice too.


 * Release Procedure
-This section needs to be updated to take into account features from gnulib.
-In particular, be sure to read README-release.
+This section needs to be updated to take into account features from
+gnulib.  In particular, be sure to read README-release.

 ** Update the submodules.  See above.

 ** Update maintainer tools, such as Autoconf.  See above.

 ** Try to get the *.pot files to the Translation Project at least one
-week before a stable release, to give them time to translate them.  Before
-generating the *.pot files, make sure that po/POTFILES.in and
-runtime-po/POTFILES.in list all files with translatable strings.  This
-helps: grep -l '\<_(' *
+week before a stable release, to give them time to translate them.
+Before generating the *.pot files, make sure that po/POTFILES.in and
+runtime-po/POTFILES.in list all files with translatable strings.
+This helps: grep -l '\<_(' *

 ** Tests
 See above.

 ** Update the foreign files
-Running "./bootstrap" in the top level should update them all for you.  This
-covers PO files too.  Sometimes a PO file contains problems that causes it
-to be rejected by recent Gettext releases; please report these to the
-Translation Project.
+Running "./bootstrap" in the top level should update them all for you.
+This covers PO files too.  Sometimes a PO file contains problems that
+causes it to be rejected by recent Gettext releases; please report
+these to the Translation Project.

 ** Update README
-Make sure the information in README is current.  Most notably, make sure it
-recommends a version of GNU M4 that is compatible with the latest Bison
-sources.
+Make sure the information in README is current.  Most notably, make sure
+it recommends a version of GNU M4 that is compatible with the latest
+Bison sources.

 ** Check copyright years.
-We update years in copyright statements throughout Bison once at the start
-of every year by running "make update-copyright".  However, before a
-release, it's good to verify that it's actually been run.  Besides the
-copyright statement for each Bison file, check the copyright statements that
-the skeletons insert into generated parsers, and check all occurrences of
-PACKAGE_COPYRIGHT_YEAR in configure.ac.
+We update years in copyright statements throughout Bison once at the
+start of every year by running "make update-copyright".  However, before
+a release, it's good to verify that it's actually been run.  Besides the
+copyright statement for each Bison file, check the copyright statements
+that the skeletons insert into generated parsers, and check all
+occurrences of PACKAGE_COPYRIGHT_YEAR in configure.ac.

 ** Update NEWS, commit and tag.
-See do-release-commit-and-tag in README-release.  For a while, we used beta
-names such as "2.6_rc1".  Now that we use gnulib in the release procedure,
-we must use "2.5.90", which has the additional benefit of being properly
-sorted in "git tag -l".
+See do-release-commit-and-tag in README-release.  For a while, we used
+beta names such as "2.6_rc1".  Now that we use gnulib in the release
+procedure, we must use "2.5.90", which has the additional benefit of
+being properly sorted in "git tag -l".

 ** make alpha, beta, or stable
 See README-release.

 ** Upload
-There are two ways to upload the tarballs to the GNU servers: using gnupload
-(from gnulib), or by hand.  Obviously prefer the former.  But in either
-case, be sure to read the following paragraph.
+There are two ways to upload the tarballs to the GNU servers: using
+gnupload (from gnulib), or by hand.  Obviously prefer the former.  But
+in either case, be sure to read the following paragraph.

 *** Setup
 You need "gnupg".

-Make sure your public key has been uploaded at least to keys.gnupg.net.  You
-can upload it with:
+Make sure your public key has been uploaded at least to
+keys.gnupg.net.  You can upload it with:

  gpg --keyserver keys.gnupg.net --send-keys F125BDF3

@@ -345,8 +347,8 @@ where F125BDF3 should be replaced with your key ID.
 *** Using gnupload
 You need "ncftp".

-At the end "make stable" (or alpha/beta) will display the procedure to run.
-Just copy and paste it in your shell.
+At the end "make stable" (or alpha/beta) will display the procedure to
+run.  Just copy and paste it in your shell.

 *** By hand

@@ -408,9 +410,9 @@ sections that have been removed or renamed):
   $ ls -lt

 Remove these files and commit their removal to CVS.  For each of these
-files, add a line to the file .symlinks.  This will ensure that hyperlinks
-to the removed files will redirect to the entire manual; this is better than
-a 404 error.
+files, add a line to the file .symlinks.  This will ensure that
+hyperlinks to the removed files will redirect to the entire manual; this
+is better than a 404 error.

 There is a problem with 'index.html' being written twice (once for POSIX
 function 'index', once for the table of contents); you can ignore this
@@ -429,18 +431,19 @@ Complete/fix the announcement file.  The generated list of recipients
 ([email protected], [email protected], [email protected],
 [email protected], and [email protected]) is
 appropriate for a stable release or a "serious beta".  For any other
-release, drop at least [email protected].  For an example of how to fill out
-the rest of the template, search the mailing list archives for the most
-recent release announcement.
+release, drop at least [email protected].  For an example of how to
+fill out the rest of the template, search the mailing list archives
+for the most recent release announcement.

 For a stable release, send the same announcement on the comp.compilers
-newsgroup by sending email to [email protected].  Do not make any Cc as the
-moderator will throw away anything cross-posted or Cc'ed.  It really needs
-to be a separate message.
+newsgroup by sending email to [email protected].  Do not make any Cc as
+the moderator will throw away anything cross-posted or Cc'ed.  It really
+needs to be a separate message.

 ** Prepare NEWS
-So that developers don't accidentally add new items to the old NEWS entry,
-create a new empty entry in line 3 (without the two leading spaces):
+So that developers don't accidentally add new items to the old NEWS
+entry, create a new empty entry in line 3 (without the two leading
+spaces):

  * Noteworthy changes in release ?.? (????-??-??) [?]

@@ -448,7 +451,7 @@ Push these changes.

 -----

-Copyright (C) 2002-2005, 2007-2015, 2018 Free Software Foundation, Inc.
+Copyright (C) 2002-2005, 2007-2015 Free Software Foundation, Inc.

 This file is part of GNU Bison.

@@ -15,7 +15,6 @@ Anthony Heading           [email protected]
 Antonio Silva Correia     [email protected]
 Arnold Robbins            [email protected]
 Art Haas                  [email protected]
-Askar Safin               [email protected]
 Baron Schwartz            [email protected]
 Ben Pfaff                 [email protected]
 Benoit Perrot             [email protected]
@@ -25,7 +24,6 @@ Bert Deknuydt             [email protected]
 Bill Allombert            [email protected]
 Bob Rossi                 [email protected]
 Brandon Lucia             [email protected]
-Brooks Moses              [email protected]
 Bruce Lilly               [email protected]
 Bruno Haible              [email protected]
 Charles-Henri de Boysson  [email protected]
@@ -40,10 +38,7 @@ Daniel Galloway           [email protected]
 Daniel Hagerty            [email protected]
 David J. MacKenzie        [email protected]
 David Kastrup             [email protected]
-David Michael             [email protected]
-Dengke Du                 [email protected]
 Dennis Clarke             [email protected]
-Derek Clegg               [email protected]
 Derek M. Jones            [email protected]
 Di-an Jan                 [email protected]
 Dick Streefland           [email protected]
@@ -53,21 +48,18 @@ Enrico Scholz             [email protected]
 Eric Blake                [email protected]
 Evgeny Stambulchik        [email protected]
 Fabrice Bauzac            [email protected]
-Ferdinand Thiessen        [email protected]
 Florian Krohm             [email protected]
 Frank Heckenbach          [email protected]
 Frans Englich             [email protected]
 Gabriel Rassoul           [email protected]
-Gary L Peskin             [email protected]
 Georg Sauthoff            [email protected]
 George Neuner             [email protected]
 Gilles Espinasse          [email protected]
 Goran Uddeborg            [email protected]
 Guido Trentalancia        [email protected]
 H. Merijn Brand           [email protected]
-Hans Åberg                haberg[email protected]
+Hans Aberg                haberg@matematik.su.se
 Jan Nieuwenhuizen         [email protected]
-Jannick                   [email protected]
 Jerry Quinn               [email protected]
 Jesse Thilo               [email protected]
 Jim Kent                  [email protected]
@@ -92,7 +84,6 @@ Martin Mokrejs            [email protected]
 Martin Nylin              [email protected]
 Matt Kraai                [email protected]
 Matt Rosing               [email protected]
-Maxim Prohorenko          [email protected]
 Michael Catanzaro         [email protected]
 Michael Felt              [email protected]
 Michael Hayes             [email protected]
@@ -102,7 +93,6 @@ Michiel De Wilde          [email protected]
 Mickael Labau             [email protected]
 Mike Castle               [email protected]
 Mike Sullivan             [email protected]
-Nate Guerin               [email protected]
 Neil Booth                [email protected]
 Nelson H. F. Beebe        [email protected]
 Nick Bowler               [email protected]
@@ -126,7 +116,6 @@ Peter Simons              [email protected]
 Petr Machata              [email protected]
 Pho                       [email protected]
 Piotr Gackiewicz          [email protected]
-Piotr Marcińczyk          [email protected]
 Quentin Hocquet           [email protected]
 Quoc Peyrot               [email protected]
 R Blake                   [email protected]
@@ -138,7 +127,6 @@ Rici Lake                 [email protected]
 Rob Conde                 [email protected]
 Rob Vermaas               [email protected]
 Robert Anisko             [email protected]
-Robert Yang               [email protected]
 Roland Levillain          [email protected]
 Satya Kiran Popuri        [email protected]
 Sebastian Setzer          [email protected]
@@ -173,7 +161,6 @@ Wolfram Wagner            [email protected]
 Wwp                       [email protected]
 xolodho                   [email protected]
 Zack Weinberg             [email protected]
-長田偉伸                   [email protected]

 Many people are not named here because we lost track of them.  We
 thank them!  Please, help us keeping this list up to date.
@@ -185,7 +172,7 @@ End:

 -----

-Copyright (C) 2000-2015, 2018 Free Software Foundation, Inc.
+Copyright (C) 2000-2015 Free Software Foundation, Inc.

 This file is part of Bison, the GNU Parser Generator.

@@ -112,7 +112,7 @@ We could (should?) also treat the case of the undef_token, which is
 numbered 257 for yylex, and 2 internal.  Both appear for instance in
 toknum:

-  const unsigned short
+  const unsigned short int
  parser::yytoken_number_[] =
  {
       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
@@ -369,8 +369,7 @@ End:

 -----

-Copyright (C) 2001-2004, 2006, 2008-2015, 2018 Free Software Foundation,
-Inc.
+Copyright (C) 2001-2004, 2006, 2008-2015 Free Software Foundation, Inc.

 This file is part of Bison, the GNU Compiler Compiler.

@@ -1,10 +1,10 @@
 #! /bin/sh
 # Print a version string.
-scriptversion=2018-07-25.07; # UTC
+scriptversion=2014-12-08.12; # UTC

 # Bootstrap this package from checked-out sources.

-# Copyright (C) 2003-2018 Free Software Foundation, Inc.
+# Copyright (C) 2003-2015 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
@@ -17,7 +17,7 @@ scriptversion=2018-07-25.07; # UTC
 # 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/>.
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.

 # Originally written by Paul Eggert.  The canonical version of this
 # script is maintained as build-aux/bootstrap in gnulib, however, to
@@ -42,13 +42,11 @@ export LC_ALL

 local_gl_dir=gl

-# Honor $PERL, but work even if there is none.
+# Honour $PERL, but work even if there is none
 PERL="${PERL-perl}"

 me=$0

-default_gnulib_url=git://git.sv.gnu.org/gnulib
-
 usage() {
  cat <<EOF
 Usage: $me [OPTION]...
@@ -78,37 +76,6 @@ contents are read as shell variables to configure the bootstrap.
 For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR
 are honored.

-Gnulib sources can be fetched in various ways:
-
- * If this package is in a git repository with a 'gnulib' submodule
-   configured, then that submodule is initialized and updated and sources
-   are fetched from there.  If \$GNULIB_SRCDIR is set (directly or via
-   --gnulib-srcdir) and is a git repository, then it is used as a reference.
-
- * Otherwise, if \$GNULIB_SRCDIR is set (directly or via --gnulib-srcdir),
-   then sources are fetched from that local directory.  If it is a git
-   repository and \$GNULIB_REVISION is set, then that revision is checked
-   out.
-
- * Otherwise, if this package is in a git repository with a 'gnulib'
-   submodule configured, then that submodule is initialized and updated and
-   sources are fetched from there.
-
- * Otherwise, if the 'gnulib' directory does not exist, Gnulib sources are
-   cloned into that directory using git from \$GNULIB_URL, defaulting to
-   $default_gnulib_url.
-   If \$GNULIB_REVISION is set, then that revision is checked out.
-
- * Otherwise, the existing Gnulib sources in the 'gnulib' directory are
-   used.  If it is a git repository and \$GNULIB_REVISION is set, then that
-   revision is checked out.
-
-If you maintain a package and want to pin a particular revision of the
-Gnulib sources that has been tested with your package, then there are two
-possible approaches: either configure a 'gnulib' submodule with the
-appropriate revision, or set \$GNULIB_REVISION (and if necessary
-\$GNULIB_URL) in $me.conf.
-
 Running without arguments will suffice in most cases.
 EOF
 }
@@ -168,13 +135,13 @@ bootstrap_epilogue() { :; }
 # options because the latest/%s directory and the .po files within are
 # all symlinks.
 po_download_command_format=\
-"rsync --include '*.po' --exclude '*' -Lrtvz \
+"rsync --delete --exclude '*.s1' -Lrtvz \
 'translationproject.org::tp/latest/%s/' '%s'"

 # Fallback for downloading .po files (if rsync fails).
 po_download_command_format2=\
 "wget --mirror -nd -q -np -A.po -P '%s' \
- https://translationproject.org/latest/%s/"
+ http://translationproject.org/latest/%s/"

 # Prefer a non-empty tarname (4th argument of AC_INIT if given), else
 # fall back to the package name (1st argument with munging)
@@ -203,15 +170,7 @@ source_base=lib
 m4_base=m4
 doc_base=doc
 tests_base=tests
-gnulib_extra_files="
-        build-aux/install-sh
-        build-aux/mdate-sh
-        build-aux/texinfo.tex
-        build-aux/depcomp
-        build-aux/config.guess
-        build-aux/config.sub
-        doc/INSTALL
-"
+gnulib_extra_files=''

 # Additional gnulib-tool options to use.  Use "\newline" to break lines.
 gnulib_tool_option_extras=
@@ -305,18 +264,24 @@ case "$0" in
  *) test -r "$0.conf" && . ./"$0.conf" ;;
 esac

+# Extra files from gnulib, which override files from other sources.
+test -z "${gnulib_extra_files}" && \
+  gnulib_extra_files="
+        build-aux/install-sh
+        build-aux/mdate-sh
+        build-aux/texinfo.tex
+        build-aux/depcomp
+        build-aux/config.guess
+        build-aux/config.sub
+        doc/INSTALL
+"
+
 if test "$vc_ignore" = auto; then
  vc_ignore=
  test -d .git && vc_ignore=.gitignore
  test -d CVS && vc_ignore="$vc_ignore .cvsignore"
 fi

-if test x"$gnulib_modules$gnulib_files$gnulib_extra_files" = x; then
-  use_gnulib=false
-else
-  use_gnulib=true
-fi
-
 # Translate configuration into internal form.

 # Parse options.
@@ -453,30 +418,28 @@ sort_ver() { # sort -V is not generally available
  done
 }

-get_version_sed='
-# Move version to start of line.
-s/.*[v ]\([0-9]\)/\1/
-
-# Skip lines that do not start with version.
-/^[0-9]/!d
-
-# Remove characters after the version.
-s/[^.a-z0-9-].*//
-
-# The first component must be digits only.
-s/^\([0-9]*\)[a-z-].*/\1/
-
-#the following essentially does s/5.005/5.5/
-s/\.0*\([1-9]\)/.\1/g
-p
-q'
-
 get_version() {
  app=$1

  $app --version >/dev/null 2>&1 || { $app --version; return 1; }

-  $app --version 2>&1 | sed -n "$get_version_sed"
+  $app --version 2>&1 |
+  sed -n '# Move version to start of line.
+          s/.*[v ]\([0-9]\)/\1/
+
+          # Skip lines that do not start with version.
+          /^[0-9]/!d
+
+          # Remove characters after the version.
+          s/[^.a-z0-9-].*//
+
+          # The first component must be digits only.
+          s/^\([0-9]*\)[a-z-].*/\1/
+
+          #the following essentially does s/5.005/5.5/
+          s/\.0*\([1-9]\)/.\1/g
+          p
+          q'
 }

 check_versions() {
@@ -647,94 +610,85 @@ git_modules_config () {
  test -f .gitmodules && git config --file .gitmodules "$@"
 }

-if $use_gnulib; then
-  if $use_git; then
-    gnulib_path=$(git_modules_config submodule.gnulib.path)
-    test -z "$gnulib_path" && gnulib_path=gnulib
+if $use_git; then
+  gnulib_path=$(git_modules_config submodule.gnulib.path)
+  test -z "$gnulib_path" && gnulib_path=gnulib
+fi
+
+# Get gnulib files.  Populate $GNULIB_SRCDIR, possibly updating a
+# submodule, for use in the rest of the script.
+
+case ${GNULIB_SRCDIR--} in
+-)
+  # Note that $use_git is necessarily true in this case.
+  if git_modules_config submodule.gnulib.url >/dev/null; then
+    echo "$0: getting gnulib files..."
+    git submodule init -- "$gnulib_path" || exit $?
+    git submodule update -- "$gnulib_path" || exit $?
+
+  elif [ ! -d "$gnulib_path" ]; then
+    echo "$0: getting gnulib files..."
+
+    trap cleanup_gnulib 1 2 13 15
+
+    shallow=
+    git clone -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2'
+    git clone $shallow git://git.sv.gnu.org/gnulib "$gnulib_path" ||
+      cleanup_gnulib
+
+    trap - 1 2 13 15
  fi
-
-  # Get gnulib files.  Populate $GNULIB_SRCDIR, possibly updating a
-  # submodule, for use in the rest of the script.
-
-  case ${GNULIB_SRCDIR--} in
-  -)
-    # Note that $use_git is necessarily true in this case.
-    if git_modules_config submodule.gnulib.url >/dev/null; then
-      echo "$0: getting gnulib files..."
-      git submodule init -- "$gnulib_path" || exit $?
-      git submodule update -- "$gnulib_path" || exit $?
-
-    elif [ ! -d "$gnulib_path" ]; then
-      echo "$0: getting gnulib files..."
-
-      trap cleanup_gnulib 1 2 13 15
-
-      shallow=
-      if test -z "$GNULIB_REVISION"; then
-        git clone -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2'
+  GNULIB_SRCDIR=$gnulib_path
+  ;;
+*)
+  # Use GNULIB_SRCDIR directly or as a reference.
+  if $use_git && test -d "$GNULIB_SRCDIR"/.git && \
+        git_modules_config submodule.gnulib.url >/dev/null; then
+    echo "$0: getting gnulib files..."
+    if git submodule -h|grep -- --reference > /dev/null; then
+      # Prefer the one-liner available in git 1.6.4 or newer.
+      git submodule update --init --reference "$GNULIB_SRCDIR" \
+        "$gnulib_path" || exit $?
+    else
+      # This fallback allows at least git 1.5.5.
+      if test -f "$gnulib_path"/gnulib-tool; then
+        # Since file already exists, assume submodule init already complete.
+        git submodule update -- "$gnulib_path" || exit $?
+      else
+        # Older git can't clone into an empty directory.
+        rmdir "$gnulib_path" 2>/dev/null
+        git clone --reference "$GNULIB_SRCDIR" \
+          "$(git_modules_config submodule.gnulib.url)" "$gnulib_path" \
+          && git submodule init -- "$gnulib_path" \
+          && git submodule update -- "$gnulib_path" \
+          || exit $?
      fi
-      git clone $shallow ${GNULIB_URL:-$default_gnulib_url} "$gnulib_path" \
-        || cleanup_gnulib
-
-      trap - 1 2 13 15
    fi
    GNULIB_SRCDIR=$gnulib_path
-    ;;
-  *)
-    # Use GNULIB_SRCDIR directly or as a reference.
-    if $use_git && test -d "$GNULIB_SRCDIR"/.git && \
-          git_modules_config submodule.gnulib.url >/dev/null; then
-      echo "$0: getting gnulib files..."
-      if git submodule -h|grep -- --reference > /dev/null; then
-        # Prefer the one-liner available in git 1.6.4 or newer.
-        git submodule update --init --reference "$GNULIB_SRCDIR" \
-          "$gnulib_path" || exit $?
-      else
-        # This fallback allows at least git 1.5.5.
-        if test -f "$gnulib_path"/gnulib-tool; then
-          # Since file already exists, assume submodule init already complete.
-          git submodule update -- "$gnulib_path" || exit $?
-        else
-          # Older git can't clone into an empty directory.
-          rmdir "$gnulib_path" 2>/dev/null
-          git clone --reference "$GNULIB_SRCDIR" \
-            "$(git_modules_config submodule.gnulib.url)" "$gnulib_path" \
-            && git submodule init -- "$gnulib_path" \
-            && git submodule update -- "$gnulib_path" \
-            || exit $?
-        fi
-      fi
-      GNULIB_SRCDIR=$gnulib_path
-    fi
-    ;;
-  esac
-
-  if test -d "$GNULIB_SRCDIR"/.git && test -n "$GNULIB_REVISION" \
-     && ! git_modules_config submodule.gnulib.url >/dev/null; then
-    (cd "$GNULIB_SRCDIR" && git checkout "$GNULIB_REVISION") || cleanup_gnulib
  fi
+  ;;
+esac

-  # $GNULIB_SRCDIR now points to the version of gnulib to use, and
-  # we no longer need to use git or $gnulib_path below here.
+# $GNULIB_SRCDIR now points to the version of gnulib to use, and
+# we no longer need to use git or $gnulib_path below here.

-  if $bootstrap_sync; then
-    cmp -s "$0" "$GNULIB_SRCDIR/build-aux/bootstrap" || {
-      echo "$0: updating bootstrap and restarting..."
-      case $(sh -c 'echo "$1"' -- a) in
-        a) ignored=--;;
-        *) ignored=ignored;;
-      esac
-      exec sh -c \
-        'cp "$1" "$2" && shift && exec "${CONFIG_SHELL-/bin/sh}" "$@"' \
-        $ignored "$GNULIB_SRCDIR/build-aux/bootstrap" \
-        "$0" "$@" --no-bootstrap-sync
-    }
-  fi
-
-  gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
-  <$gnulib_tool || exit $?
+if $bootstrap_sync; then
+  cmp -s "$0" "$GNULIB_SRCDIR/build-aux/bootstrap" || {
+    echo "$0: updating bootstrap and restarting..."
+    case $(sh -c 'echo "$1"' -- a) in
+      a) ignored=--;;
+      *) ignored=ignored;;
+    esac
+    exec sh -c \
+      'cp "$1" "$2" && shift && exec "${CONFIG_SHELL-/bin/sh}" "$@"' \
+      $ignored "$GNULIB_SRCDIR/build-aux/bootstrap" \
+      "$0" "$@" --no-bootstrap-sync
+  }
 fi

+gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
+<$gnulib_tool || exit $?
+
 # Get translations.

 download_po_files() {
@@ -743,7 +697,7 @@ download_po_files() {
  echo "$me: getting translations into $subdir for $domain..."
  cmd=$(printf "$po_download_command_format" "$domain" "$subdir")
  eval "$cmd" && return
-  # Fallback to HTTPS.
+  # Fallback to HTTP.
  cmd=$(printf "$po_download_command_format2" "$subdir" "$domain")
  eval "$cmd"
 }
@@ -834,9 +788,9 @@ symlink_to_dir()
      # Leave any existing symlink alone, if it already points to the source,
      # so that broken build tools that care about symlink times
      # aren't confused into doing unnecessary builds.  Conversely, if the
-      # existing symlink's timestamp is older than the source, make it afresh,
+      # existing symlink's time stamp is older than the source, make it afresh,
      # so that broken tools aren't confused into skipping needed builds.  See
-      # <https://lists.gnu.org/r/bug-gnulib/2011-05/msg00326.html>.
+      # <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00326.html>.
      test -h "$dst" &&
      src_ls=$(ls -diL "$src" 2>/dev/null) && set $src_ls && src_i=$1 &&
      dst_ls=$(ls -diL "$dst" 2>/dev/null) && set $dst_ls && dst_i=$1 &&
@@ -942,33 +896,31 @@ fi

 # Import from gnulib.

-if $use_gnulib; then
-  gnulib_tool_options="\
-   --no-changelog\
-   --aux-dir=$build_aux\
-   --doc-base=$doc_base\
-   --lib=$gnulib_name\
-   --m4-base=$m4_base/\
-   --source-base=$source_base/\
-   --tests-base=$tests_base\
-   --local-dir=$local_gl_dir\
-   $gnulib_tool_option_extras\
-  "
-  if test $use_libtool = 1; then
-    case "$gnulib_tool_options " in
-      *' --libtool '*) ;;
-      *) gnulib_tool_options="$gnulib_tool_options --libtool" ;;
-    esac
-  fi
-  echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
-  $gnulib_tool $gnulib_tool_options --import $gnulib_modules \
-    || die "gnulib-tool failed"
-
-  for file in $gnulib_files; do
-    symlink_to_dir "$GNULIB_SRCDIR" $file \
-      || die "failed to symlink $file"
-  done
+gnulib_tool_options="\
+ --import\
+ --no-changelog\
+ --aux-dir $build_aux\
+ --doc-base $doc_base\
+ --lib $gnulib_name\
+ --m4-base $m4_base/\
+ --source-base $source_base/\
+ --tests-base $tests_base\
+ --local-dir $local_gl_dir\
+ $gnulib_tool_option_extras\
+"
+if test $use_libtool = 1; then
+  case "$gnulib_tool_options " in
+    *' --libtool '*) ;;
+    *) gnulib_tool_options="$gnulib_tool_options --libtool" ;;
+  esac
 fi
+echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
+$gnulib_tool $gnulib_tool_options --import $gnulib_modules &&
+
+for file in $gnulib_files; do
+  symlink_to_dir "$GNULIB_SRCDIR" $file \
+    || die "failed to symlink $file"
+done

 bootstrap_post_import_hook \
  || die "bootstrap_post_import_hook failed"
@@ -1065,9 +1017,9 @@ bootstrap_epilogue
 echo "$0: done.  Now you can run './configure'."

 # Local variables:
-# eval: (add-hook 'before-save-hook 'time-stamp)
+# eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
+# time-stamp-time-zone: "UTC"
 # time-stamp-end: "; # UTC"
 # End:
@@ -1,6 +1,6 @@
 # Bootstrap configuration.

-# Copyright (C) 2006-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2006-2015 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
@@ -17,8 +17,7 @@

 # gnulib modules used by this package.
 gnulib_modules='
-  argmatch assert
-  calloc-posix close closeout config-h c-strcase
+  argmatch assert calloc-posix close closeout config-h c-strcase
  configmake
  dirname
  error extensions fdl fopen-safer
@@ -82,7 +81,7 @@ gnulib_tool_option_extras='--symlink --makefile-name=gnulib.mk'
 bootstrap_post_import_hook()
 {
  # Massage lib/gnulib.mk before using it later in the bootstrapping process.
-  build-aux/prefix-gnulib-mk --lib-name="$gnulib_name" "lib/$gnulib_mk"
+  build-aux/prefix-gnulib-mk --lib-name=$gnulib_name lib/$gnulib_mk

  # Ensure that ChangeLog exists, for automake.
  test -f ChangeLog || touch ChangeLog
@@ -1,4 +1,6 @@
 /announce-gen
+/arg-nonnull.h
+/c++defs.h
 /compile
 /config.guess
 /config.rpath
@@ -14,12 +16,14 @@
 /install-sh
 /javacomp.sh.in
 /javaexec.sh.in
+/link-warning.h
 /mdate-sh
 /missing
-/prefix-gnulib-mk
 /test-driver
 /texinfo.tex
 /update-copyright
 /useless-if-before-free
 /vc-list-files
+/warn-on-use.h
 /ylwrap
+/prefix-gnulib-mk
@@ -1,48 +0,0 @@
-# Copyright (C) 2012-2015, 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 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 <http://www.gnu.org/licenses/>.
-
-# Valgrind suppression file for Bison.
-
-# Linux prague 4.1.2-2-ARCH #1 SMP PREEMPT Wed Jul 15 08:30:32 UTC 2015
-# x86_64 GNU/Linux
-{
-   Probably exception handling from G++ 5.1.
-   Memcheck:Leak
-   match-leak-kinds: reachable
-   fun:malloc
-   fun:pool
-   fun:__static_initialization_and_destruction_0
-   fun:_GLOBAL__sub_I_eh_alloc.cc
-   fun:call_init.part.0
-   fun:_dl_init
-   obj:/usr/lib/ld-2.21.so
-}
-
-# Linux seattle 2.6.32-5-amd64 #1 SMP Thu Mar 22 17:26:33 UTC 2012
-# x86_64 GNU/Linux
-{
-   index
-   Memcheck:Cond
-   fun:index
-   fun:expand_dynamic_string_token
-   fun:_dl_map_object
-   fun:map_doit
-   fun:_dl_catch_error
-   fun:do_preload
-   fun:dl_main
-   fun:_dl_sysdep_start
-   fun:_dl_start
-   obj:/lib/ld-2.11.3.so
-}
@@ -1,4 +1,4 @@
-# Copyright (C) 2012-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015 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
@@ -0,0 +1,16 @@
+# Linux seattle 2.6.32-5-amd64 #1 SMP Thu Mar 22 17:26:33 UTC 2012
+# x86_64 GNU/Linux
+{
+   index
+   Memcheck:Cond
+   fun:index
+   fun:expand_dynamic_string_token
+   fun:_dl_map_object
+   fun:map_doit
+   fun:_dl_catch_error
+   fun:do_preload
+   fun:dl_main
+   fun:_dl_sysdep_start
+   fun:_dl_start
+   obj:/lib/ld-2.11.3.so
+}
@@ -1,4 +1,4 @@
-# Copyright (C) 2000-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2000-2015 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
@@ -13,10 +13,10 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.

-EXTRA_DIST +=					\
-  build-aux/Darwin.valgrind			\
-  build-aux/Linux.valgrind			\
-  build-aux/cross-options.pl			\
-  build-aux/move-if-change			\
-  build-aux/prev-version.txt			\
+EXTRA_DIST +=                                   \
+  build-aux/cross-options.pl                    \
+  build-aux/darwin11.4.0.valgrind               \
+  build-aux/linux-gnu.valgrind                  \
+  build-aux/move-if-change                      \
+  build-aux/prev-version.txt                    \
  build-aux/update-b4-copyright
@@ -0,0 +1,4 @@
+/_Noreturn.h
+/arg-nonnull.h
+/c++defs.h
+/warn-on-use.h
@@ -3,7 +3,7 @@
 # Update b4_copyright invocations or b4_copyright_years definitions to
 # include the current year.

-# Copyright (C) 2009-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2009-2015 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
@@ -2,7 +2,7 @@

 # In configure.ac, update PACKAGE_COPYRIGHT_YEAR to the current year.

-# Copyright (C) 2010-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2010-2015 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
@@ -1,5 +1,5 @@
 # Customize maint.mk                           -*- makefile -*-
-# Copyright (C) 2008-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2008-2015 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
@@ -34,7 +34,7 @@ _is-dist-target = $(filter-out %clean maintainer-check% maintainer-%-check, \
  $(filter maintainer-% dist% alpha beta major,$(MAKECMDGOALS)))

 url_dir_list = \
-  https://$(gnu_rel_host)/gnu/bison
+  ftp://$(gnu_rel_host)/gnu/bison

 # Tests not to run as part of "make distcheck".
 local-checks-to-skip =			\
@@ -158,24 +158,23 @@ sc_space_before_open_paren:

 exclude = \
  $(foreach a,$(1),$(eval $(subst $$,$$$$,exclude_file_name_regexp--sc_$(a))))
-$(call exclude,                                                         \
-  bindtextdomain=^lib/main.c$$                                          \
-  preprocessor_indentation=^data/|^lib/|^src/parse-gram.[ch]$$          \
-  program_name=^lib/main.c$$                                            \
-  prohibit_always-defined_macros=^data/yacc.c$$|^djgpp/                 \
-  prohibit_always-defined_macros+=?|^lib/timevar.c$$                    \
-  prohibit_always-defined_macros+=?|^src/(parse-gram.c|system.h)$$      \
-  prohibit_always-defined_macros+=?|^tests/regression.at$$              \
-  prohibit_always_true_header_tests=^djgpp/subpipe.h$$|^lib/timevar.c$$ \
-  prohibit_always_true_header_tests+=?|^m4/timevar.m4$$                 \
-  prohibit_defined_have_decl_tests=?|^lib/timevar.c$$                   \
+$(call exclude,								\
+  bindtextdomain=^lib/main.c$$						\
+  preprocessor_indentation=^data/|^lib/|^src/parse-gram.[ch]$$		\
+  program_name=^lib/main.c$$						\
+  prohibit_always-defined_macros=^data/yacc.c$$|^djgpp/			\
+  prohibit_always-defined_macros+=?|^lib/timevar.c$$			\
+  prohibit_always-defined_macros+=?|^src/(parse-gram.c|system.h)$$	\
+  prohibit_always-defined_macros+=?|^tests/regression.at$$		\
+  prohibit_always_true_header_tests=^djgpp/subpipe.h$$|^lib/timevar.c$$	\
+  prohibit_always_true_header_tests+=?|^m4/timevar.m4$$			\
+  prohibit_defined_have_decl_tests=?|^lib/timevar.c$$			\
  prohibit_doubled_word=^tests/named-refs.at$$                          \
-  prohibit_magic_number_exit=^doc/bison.texi$$                          \
-  prohibit_magic_number_exit+=?|^tests/(conflicts|regression).at$$      \
-  prohibit_strcmp=^doc/bison\.texi|tests/local\.at$$                    \
-  prohibit_tab_based_indentation=\.(am|mk)$$|^djgpp/|^\.git|Makefile$$  \
-  require_config_h_first=^(lib/yyerror|data/(glr|yacc))\.c$$            \
+  prohibit_magic_number_exit=^doc/bison.texi$$				\
+  prohibit_magic_number_exit+=?|^tests/(conflicts|regression).at$$	\
+  prohibit_strcmp=^doc/bison\.texi|tests/local\.at$$			\
+  prohibit_tab_based_indentation=\.(am|mk)$$|^djgpp/|^\.git		\
+  require_config_h_first=^(lib/yyerror|data/(glr|yacc))\.c$$		\
  space_before_open_paren=^(data/|djgpp/)                               \
-  two_space_separator_in_usage=^(bootstrap)                             \
-  unmarked_diagnostics=^(djgpp/|doc/bison.texi$$|tests/c\+\+\.at$$)     \
+  unmarked_diagnostics=^(djgpp/|doc/bison.texi$$|tests/c\+\+\.at$$)	\
 )
@@ -1,6 +1,6 @@
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #
-# Copyright (C) 2001-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015 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
@@ -26,7 +26,7 @@ m4_pattern_forbid([^gl_[A-Z]])
 AC_INIT([GNU Bison],
        m4_esyscmd([build-aux/git-version-gen .tarball-version]),
        [[email protected]])
-AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2018])
+AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2015])
 AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR],
                   [The copyright year for this package])

@@ -82,7 +82,7 @@ AC_ARG_ENABLE([gcc-warnings],
 AM_CONDITIONAL([ENABLE_GCC_WARNINGS], [test "$enable_gcc_warnings" = yes])
 if test "$enable_gcc_warnings" = yes; then
  warn_common='-Wall -Wextra -Wno-sign-compare -Wcast-align -Wdocumentation
-    -Wformat -Wnull-dereference -Wpointer-arith -Wwrite-strings'
+    -Wformat -Wpointer-arith -Wwrite-strings'
  warn_c='-Wbad-function-cast -Wshadow -Wstrict-prototypes'
  warn_cxx='-Wnoexcept'
  # Warnings for the test suite only.
@@ -90,12 +90,7 @@ if test "$enable_gcc_warnings" = yes; then
  # -fno-color-diagnostics: Clang's use of colors in the error
  # messages is confusing the tests looking at the compiler's output
  # (e.g., synclines.at).
-  #
-  # -Wno-keyword-macro: We use the "#define private public" dirty
-  # trick in the test suite to check some private implementation
-  # details for lalr1.cc.
-  warn_tests='-Wundef -pedantic -Wdeprecated -Wsign-compare -fno-color-diagnostics
-    -Wno-keyword-macro'
+  warn_tests='-Wundef -pedantic -Wsign-compare -fno-color-diagnostics'

  AC_LANG_PUSH([C])
  # Clang supports many of GCC's -W options, but only issues warnings
@@ -153,7 +148,6 @@ if test "$enable_gcc_warnings" = yes; then
  # ... possiby in std=c++11 mode.
  gl_WARN_ADD([-Wno-zero-as-null-pointer-constant], [FLEX_SCANNER_CXXFLAGS])
  CXXFLAGS=$save_CXXFLAGS
-  gl_WARN_ADD([-fno-exceptions], [CXXFLAGS_NO_EXCEPTIONS])
  AC_LANG_POP([C++])
 fi

@@ -226,21 +220,20 @@ AC_CONFIG_FILES([etc/bench.pl], [chmod +x etc/bench.pl])
 AC_CONFIG_TESTDIR(tests)
 AC_CONFIG_FILES([tests/atlocal])
 AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison])
-
 AC_CHECK_PROGS([VALGRIND], [valgrind])
-# Use something simpler that $host_os to select our suppression file.
-uname=`uname`
-case $VALGRIND:$uname in
+case $VALGRIND:$host_os in
  '':*) ;;
-  *:Darwin)
+  *:darwin*)
    # See README-hacking.
+    # VALGRIND+='-q --suppressions=$(abs_top_srcdir)/build-aux/darwin11.4.0.valgrind'
    VALGRIND=;;
  *:*)
-    suppfile=build-aux/$uname.valgrind
+    suppfile=build-aux/$host_os.valgrind
    if test -f "$srcdir/$suppfile"; then
-      AC_SUBST([VALGRIND_OPTS_SUPPRESSION],
-               ["--suppressions=\$(abs_top_srcdir)/$suppfile"])
+      VALGRIND="$VALGRIND --gen-suppressions=all"
+      VALGRIND="$VALGRIND --suppressions=\$(abs_top_srcdir)/$suppfile"
    fi
+    AC_SUBST([VALGRIND_PREBISON], ["$VALGRIND -q"])
    ;;
 esac

@@ -1,3 +1,5 @@
+-*- outline -*-
+
 This directory contains data needed by Bison.

 * Skeletons
@@ -50,11 +52,7 @@ into various formats.

 -----

-Local Variables:
-mode: outline
-End:
-
-Copyright (C) 2002, 2008-2015, 2018 Free Software Foundation, Inc.
+Copyright (C) 2002, 2008-2015 Free Software Foundation, Inc.

 This file is part of GNU Bison.

@@ -2,7 +2,7 @@

 # Language-independent M4 Macros for Bison.

-# Copyright (C) 2002, 2004-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2004-2015 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
@@ -444,7 +444,7 @@ m4_define([b4_symbol_action],
                                [m4_dquote(b4_symbol([$1], [type]))]),
                   [(*yylocationp)])dnl
    b4_symbol_case_([$1])[]dnl
-b4_syncline([b4_symbol([$1], [$2_line])], [b4_symbol([$1], [$2_file])])
+b4_syncline([b4_symbol([$1], [$2_line])], ["b4_symbol([$1], [$2_file])"])
      b4_symbol([$1], [$2])
 b4_syncline([@oline@], [@ofile@])
        break;
@@ -2,8 +2,7 @@

 # C++ skeleton dispatching for Bison.

-# Copyright (C) 2006-2007, 2009-2015, 2018 Free Software Foundation,
-# Inc.
+# Copyright (C) 2006-2007, 2009-2015 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
@@ -2,7 +2,7 @@

 # C++ skeleton for Bison

-# Copyright (C) 2002-2018 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015 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
@@ -30,16 +30,6 @@ m4_include(b4_pkgdatadir/[c.m4])
 m4_define([b4_comment],
 [b4_comment_([$1], [$2// ], [$2// ])])

-# b4_inline(hh|cc)
-# ----------------
-# Expand to `inline\n  ` if $1 is hh.
-m4_define([b4_inline],
-[m4_case([$1],
-  [cc], [],
-  [hh], [[inline
-  ]],
-  [m4_fatal([$0: invalid argument: $1])])])
-
 ## -------- ##
 ## Checks.  ##
 ## -------- ##
@@ -285,33 +275,38 @@ m4_define([b4_public_types_declare],
 ]b4_symbol_constructor_declare])


-# b4_public_types_define(hh|cc)
-# -----------------------------
+# b4_public_types_define
+# ----------------------
 # Provide the implementation needed by the public types.
 m4_define([b4_public_types_define],
-[  b4_inline([$1])b4_parser_class_name[::syntax_error::syntax_error (]b4_locations_if([const location_type& l, ])[const std::string& m)
+[[  inline
+  ]b4_parser_class_name[::syntax_error::syntax_error (]b4_locations_if([const location_type& l, ])[const std::string& m)
    : std::runtime_error (m)]b4_locations_if([
    , location (l)])[
  {}

  // basic_symbol.
  template <typename Base>
+  inline
  ]b4_parser_class_name[::basic_symbol<Base>::basic_symbol ()
-    : value ()]b4_locations_if([
-    , location ()])[
+    : value ()
  {}

  template <typename Base>
+  inline
  ]b4_parser_class_name[::basic_symbol<Base>::basic_symbol (const basic_symbol& other)
    : Base (other)
-    , value (]b4_variant_if([], [other.value])[)]b4_locations_if([
+    , value ()]b4_locations_if([
    , location (other.location)])[
-  {]b4_variant_if([
-    b4_symbol_variant([other.type_get ()], [value], [copy],
-                      [other.value])])[
+  {
+    ]b4_variant_if([b4_symbol_variant([other.type_get ()], [value], [copy],
+                                      [other.value])],
+                   [value = other.value;])[
  }

+
  template <typename Base>
+  inline
  ]b4_parser_class_name[::basic_symbol<Base>::basic_symbol (]b4_join(
          [typename Base::kind_type t],
          [const semantic_type& v],
@@ -328,6 +323,7 @@ m4_define([b4_public_types_define],
 ]b4_type_foreach([b4_basic_symbol_constructor_define])], [[
  /// Constructor for valueless symbols.
  template <typename Base>
+  inline
  ]b4_parser_class_name[::basic_symbol<Base>::basic_symbol (]b4_join(
          [typename Base::kind_type t],
          b4_locations_if([const location_type& l]))[)
@@ -337,12 +333,14 @@ m4_define([b4_public_types_define],
  {}]])[

  template <typename Base>
+  inline
  ]b4_parser_class_name[::basic_symbol<Base>::~basic_symbol ()
  {
    clear ();
  }

  template <typename Base>
+  inline
  void
  ]b4_parser_class_name[::basic_symbol<Base>::clear ()
  {]b4_variant_if([[
@@ -363,6 +361,7 @@ m4_define([b4_public_types_define],
  }

  template <typename Base>
+  inline
  bool
  ]b4_parser_class_name[::basic_symbol<Base>::empty () const
  {
@@ -370,10 +369,11 @@ m4_define([b4_public_types_define],
  }

  template <typename Base>
+  inline
  void
  ]b4_parser_class_name[::basic_symbol<Base>::move (basic_symbol& s)
  {
-    super_type::move (s);
+    super_type::move(s);
    ]b4_variant_if([b4_symbol_variant([this->type_get ()], [value], [move],
                                      [s.value])],
                   [value = s.value;])[]b4_locations_if([
@@ -381,38 +381,45 @@ m4_define([b4_public_types_define],
  }

  // by_type.
-  ]b4_inline([$1])b4_parser_class_name[::by_type::by_type ()
+  inline
+  ]b4_parser_class_name[::by_type::by_type ()
    : type (empty_symbol)
  {}

-  ]b4_inline([$1])b4_parser_class_name[::by_type::by_type (const by_type& other)
+  inline
+  ]b4_parser_class_name[::by_type::by_type (const by_type& other)
    : type (other.type)
  {}

-  ]b4_inline([$1])b4_parser_class_name[::by_type::by_type (token_type t)
+  inline
+  ]b4_parser_class_name[::by_type::by_type (token_type t)
    : type (yytranslate_ (t))
  {}

-  ]b4_inline([$1])[void
+  inline
+  void
  ]b4_parser_class_name[::by_type::clear ()
  {
    type = empty_symbol;
  }

-  ]b4_inline([$1])[void
+  inline
+  void
  ]b4_parser_class_name[::by_type::move (by_type& that)
  {
    type = that.type;
    that.clear ();
  }

-  ]b4_inline([$1])[int
+  inline
+  int
  ]b4_parser_class_name[::by_type::type_get () const
  {
    return type;
  }
 ]b4_token_ctor_if([[
-  ]b4_inline([$1])b4_parser_class_name[::token_type
+  inline
+  ]b4_parser_class_name[::token_type
  ]b4_parser_class_name[::by_type::token () const
  {
    // YYTOKNUM[NUM] -- (External) token number corresponding to the
@@ -438,13 +445,14 @@ m4_define([b4_symbol_constructor_declare], [])
 m4_define([b4_symbol_constructor_define], [])


-# b4_yytranslate_define(cc|hh)
-# ----------------------------
-# Define yytranslate_.  Sometimes used in the header file ($1=hh),
+# b4_yytranslate_define
+# ---------------------
+# Define yytranslate_.  Sometimes used in the header file,
 # sometimes in the cc file.
 m4_define([b4_yytranslate_define],
 [[  // Symbol number corresponding to token number t.
-  ]b4_inline([$1])b4_parser_class_name[::token_number_type
+  inline
+  ]b4_parser_class_name[::token_number_type
  ]b4_parser_class_name[::yytranslate_ (]b4_token_ctor_if([token_type],
                                                          [int])[ t)
  {
@@ -454,12 +462,12 @@ m4_define([b4_yytranslate_define],
    {
 ]b4_translate[
    };
-    const unsigned user_token_number_max_ = ]b4_user_token_number_max[;
+    const unsigned int user_token_number_max_ = ]b4_user_token_number_max[;
    const token_number_type undef_token_ = ]b4_undef_token_number[;

-    if (static_cast<int> (t) <= yyeof_)
+    if (static_cast<int>(t) <= yyeof_)
      return yyeof_;
-    else if (static_cast<unsigned> (t) <= user_token_number_max_)
+    else if (static_cast<unsigned int> (t) <= user_token_number_max_)
      return translate_table[t];
    else
      return undef_token_;
@@ -2,7 +2,7 @@

 # Common code for C-like languages (C, C++, Java, etc.)

-# Copyright (C) 2012-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015 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
@@ -2,8 +2,7 @@

 # C skeleton dispatching for Bison.

-# Copyright (C) 2006-2007, 2009-2015, 2018 Free Software Foundation,
-# Inc.
+# Copyright (C) 2006-2007, 2009-2015 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
@@ -2,7 +2,7 @@

 # C M4 Macros for Bison.

-# Copyright (C) 2002, 2004-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2004-2015 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
@@ -172,10 +172,10 @@ m4_define([b4_int_type],
 [m4_if(b4_ints_in($@,      [0],   [255]), [1], [unsigned char],
       b4_ints_in($@,   [-128],   [127]), [1], [signed char],

-       b4_ints_in($@,      [0], [65535]), [1], [unsigned short],
-       b4_ints_in($@, [-32768], [32767]), [1], [short],
+       b4_ints_in($@,      [0], [65535]), [1], [unsigned short int],
+       b4_ints_in($@, [-32768], [32767]), [1], [short int],

-       m4_eval([0 <= $1]),                [1], [unsigned],
+       m4_eval([0 <= $1]),                [1], [unsigned int],

                                               [int])])

@@ -242,7 +242,7 @@ m4_define([b4_attribute_define],
 # define YYUSE(E) /* empty */
 #endif

-#if defined __GNUC__ && ! defined __ICC && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
+#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
 /* Suppress an incorrect diagnostic about yylval being uninitialized.  */
 # define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
    _Pragma ("GCC diagnostic push") \
@@ -459,8 +459,7 @@ b4_syncline([@oline@], [@ofile@])
 # ------------------------------------
 m4_define([b4_predicate_case],
 [  case $1:
-    if (! (
-$2)) YYERROR;
+    if (! ($2)) YYERROR;
 b4_syncline([@oline@], [@ofile@])
    break;])

@@ -2,7 +2,7 @@

 # GLR skeleton for Bison

-# Copyright (C) 2002-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015 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 @@ m4_if(b4_skeleton, ["glr.c"],
 [b4_defines_if(
 [b4_output_begin([b4_spec_defines_file])
 b4_copyright([Skeleton interface for Bison GLR parsers in C],
-             [2002-2015, 2018])[
+             [2002-2015])[

 ]b4_cpp_guard_open([b4_spec_defines_file])[
 ]b4_shared_declarations[
@@ -213,7 +213,7 @@ 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])[
+             [2002-2015])[

 /* C GLR parser skeleton written by Paul Hilfinger.  */

@@ -337,7 +337,7 @@ b4_percent_code_get[]dnl
 #define YYMAXUTOK   ]b4_user_token_number_max[

 #define YYTRANSLATE(YYX)                                                \
-  ((unsigned) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)

 /* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX.  */
 static const ]b4_int_type_for([b4_translate])[ yytranslate[] =
@@ -398,9 +398,9 @@ static const ]b4_int_type_for([b4_conflict_list_heads])[ yyconflp[] =
 /* YYCONFL[I] -- lists of conflicting rule numbers, each terminated by
   0, pointed into by YYCONFLP.  */
 ]dnl Do not use b4_int_type_for here, since there are places where
-dnl pointers onto yyconfl are taken, whose type is "short*".
+dnl pointers onto yyconfl are taken, whose type is "short int *".
 dnl We probably ought to introduce a type for confl.
-[static const short yyconfl[] =
+[static const short int yyconfl[] =
 {
  ]b4_conflicting_rules[
 };
@@ -613,7 +613,7 @@ typedef int yyRuleNum;
 typedef int yySymbol;

 /** Item references, as in LALR(1) machine */
-typedef short yyItemNum;
+typedef short int yyItemNum;

 typedef struct yyGLRState yyGLRState;
 typedef struct yyGLRStateSet yyGLRStateSet;
@@ -808,7 +808,6 @@ yyuserAction (yyRuleNum yyn, size_t yyrhslen, yyGLRStackItem* yyvsp,
    *yyvalp = yyval_default;
  else
    *yyvalp = yyvsp[YYFILL (1-yyrhslen)].yystate.yysemantics.yysval;]b4_locations_if([[
-  /* Default location. */
  YYLLOC_DEFAULT ((*yylocp), (yyvsp - yyrhslen), yyrhslen);
  yystackp->yyerror_range[1].yystate.yyloc = *yylocp;
 ]])[
@@ -923,7 +922,7 @@ yydefaultAction (yyStateNum yystate)
 */
 static inline void
 yygetLRActions (yyStateNum yystate, int yytoken,
-                int* yyaction, const short** yyconflicts)
+                int* yyaction, const short int** yyconflicts)
 {
  int yyindex = yypact[yystate] + yytoken;
  if (yypact_value_is_default (yypact[yystate])
@@ -1196,7 +1195,7 @@ yyremoveDeletes (yyGLRStack* yystackp)
          if (yyj != yyi)
            {
              YYDPRINTF ((stderr, "Rename stack %lu -> %lu.\n",
-                          (unsigned long) yyi, (unsigned long) yyj));
+                          (unsigned long int) yyi, (unsigned long int) yyj));
            }
          yyj += 1;
        }
@@ -1267,8 +1266,8 @@ yy_reduce_print (int yynormal, yyGLRStackItem* yyvsp, size_t yyk,
  int yylow = 1;])[
  int yyi;
  YYFPRINTF (stderr, "Reducing stack %lu by rule %d (line %lu):\n",
-             (unsigned long) yyk, yyrule - 1,
-             (unsigned long) yyrline[yyrule]);
+             (unsigned long int) yyk, yyrule - 1,
+             (unsigned long int) yyrline[yyrule]);
  if (! yynormal)
    yyfillin (yyvsp, 1, -yynrhs);
  /* The symbols being reduced.  */
@@ -1360,7 +1359,7 @@ yyglrReduce (yyGLRStack* yystackp, size_t yyk, yyRuleNum yyrule,
      if (yyflag == yyerr && yystackp->yysplitPoint != YY_NULLPTR)
        {
          YYDPRINTF ((stderr, "Parse on stack %lu rejected by rule #%d.\n",
-                     (unsigned long) yyk, yyrule - 1));
+                     (unsigned long int) yyk, yyrule - 1));
        }
      if (yyflag != yyok)
        return yyflag;
@@ -1388,7 +1387,7 @@ yyglrReduce (yyGLRStack* yystackp, size_t yyk, yyRuleNum yyrule,
      YYDPRINTF ((stderr,
                  "Reduced stack %lu by rule #%d; action deferred.  "
                  "Now in state %d.\n",
-                  (unsigned long) yyk, yyrule - 1, yynewLRState));
+                  (unsigned long int) yyk, yyrule - 1, yynewLRState));
      for (yyi = 0; yyi < yystackp->yytops.yysize; yyi += 1)
        if (yyi != yyk && yystackp->yytops.yystates[yyi] != YY_NULLPTR)
          {
@@ -1401,8 +1400,8 @@ yyglrReduce (yyGLRStack* yystackp, size_t yyk, yyRuleNum yyrule,
                    yyaddDeferredAction (yystackp, yyk, yyp, yys0, yyrule);
                    yymarkStackDeleted (yystackp, yyk);
                    YYDPRINTF ((stderr, "Merging stack %lu into stack %lu.\n",
-                                (unsigned long) yyk,
-                                (unsigned long) yyi));
+                                (unsigned long int) yyk,
+                                (unsigned long int) yyi));
                    return yyok;
                  }
                yyp = yyp->yypred;
@@ -1648,8 +1647,8 @@ yyreportTree (yySemanticOption* yyx, int yyindent)
  else
    YYFPRINTF (stderr, "%*s%s -> <Rule %d, tokens %lu .. %lu>\n",
               yyindent, "", yytokenName (yylhsNonterm (yyx->yyrule)),
-               yyx->yyrule - 1, (unsigned long) (yys->yyposn + 1),
-               (unsigned long) yyx->yystate->yyposn);
+               yyx->yyrule - 1, (unsigned long int) (yys->yyposn + 1),
+               (unsigned long int) yyx->yystate->yyposn);
  for (yyi = 1; yyi <= yynrhs; yyi += 1)
    {
      if (yystates[yyi]->yyresolved)
@@ -1660,8 +1659,8 @@ yyreportTree (yySemanticOption* yyx, int yyindent)
          else
            YYFPRINTF (stderr, "%*s%s <tokens %lu .. %lu>\n", yyindent+2, "",
                       yytokenName (yystos[yystates[yyi]->yylrState]),
-                       (unsigned long) (yystates[yyi-1]->yyposn + 1),
-                       (unsigned long) yystates[yyi]->yyposn);
+                       (unsigned long int) (yystates[yyi-1]->yyposn + 1),
+                       (unsigned long int) yystates[yyi]->yyposn);
        }
      else
        yyreportTree (yystates[yyi]->yysemantics.yyfirstVal, yyindent+2);
@@ -1881,7 +1880,7 @@ yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
    {
      yyStateNum yystate = yystackp->yytops.yystates[yyk]->yylrState;
      YYDPRINTF ((stderr, "Stack %lu Entering state %d\n",
-                  (unsigned long) yyk, yystate));
+                  (unsigned long int) yyk, yystate));

      YYASSERT (yystate != YYFINAL);

@@ -1892,7 +1891,7 @@ yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
          if (yyrule == 0)
            {
              YYDPRINTF ((stderr, "Stack %lu dies.\n",
-                          (unsigned long) yyk));
+                          (unsigned long int) yyk));
              yymarkStackDeleted (yystackp, yyk);
              return yyok;
            }
@@ -1902,7 +1901,7 @@ yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
              YYDPRINTF ((stderr,
                          "Stack %lu dies "
                          "(predicate failure or explicit user error).\n",
-                          (unsigned long) yyk));
+                          (unsigned long int) yyk));
              yymarkStackDeleted (yystackp, yyk);
              return yyok;
            }
@@ -1913,7 +1912,7 @@ yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
        {
          yySymbol yytoken;
          int yyaction;
-          const short* yyconflicts;
+          const short int* yyconflicts;

          yystackp->yytops.yylookaheadNeeds[yyk] = yytrue;
          if (yychar == YYEMPTY)
@@ -1940,8 +1939,8 @@ yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
              YYRESULTTAG yyflag;
              size_t yynewStack = yysplitStack (yystackp, yyk);
              YYDPRINTF ((stderr, "Splitting off stack %lu from %lu.\n",
-                          (unsigned long) yynewStack,
-                          (unsigned long) yyk));
+                          (unsigned long int) yynewStack,
+                          (unsigned long int) yyk));
              yyflag = yyglrReduce (yystackp, yynewStack,
                                    *yyconflicts,
                                    yyimmediate[*yyconflicts]]b4_user_args[);
@@ -1951,7 +1950,7 @@ yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
              else if (yyflag == yyerr)
                {
                  YYDPRINTF ((stderr, "Stack %lu dies.\n",
-                              (unsigned long) yynewStack));
+                              (unsigned long int) yynewStack));
                  yymarkStackDeleted (yystackp, yynewStack);
                }
              else
@@ -1964,7 +1963,7 @@ yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
          else if (yyisErrorAction (yyaction))
            {
              YYDPRINTF ((stderr, "Stack %lu dies.\n",
-                          (unsigned long) yyk));
+                          (unsigned long int) yyk));
              yymarkStackDeleted (yystackp, yyk);
              break;
            }
@@ -1977,7 +1976,7 @@ yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
                  YYDPRINTF ((stderr,
                              "Stack %lu dies "
                              "(predicate failure or explicit user error).\n",
-                              (unsigned long) yyk));
+                              (unsigned long int) yyk));
                  yymarkStackDeleted (yystackp, yyk);
                  break;
                }
@@ -2075,7 +2074,6 @@ yyreportSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
      case N:                           \
        yyformat = S;                   \
      break
-    default: /* Avoid compiler warnings. */
      YYCASE_(0, YY_("syntax error"));
      YYCASE_(1, YY_("syntax error, unexpected %s"));
      YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
@@ -2286,7 +2284,7 @@ b4_dollar_popdef])[]dnl
        {
          yyRuleNum yyrule;
          int yyaction;
-          const short* yyconflicts;
+          const short int* yyconflicts;

          yyStateNum yystate = yystack.yytops.yystates[0]->yylrState;
          YYDPRINTF ((stderr, "Entering state %d\n", yystate));
@@ -2296,8 +2294,8 @@ b4_dollar_popdef])[]dnl
            {
              yyrule = yydefaultAction (yystate);
              if (yyrule == 0)
-                {]b4_locations_if([[
-                  yystack.yyerror_range[1].yystate.yyloc = yylloc;]])[
+                {
+]b4_locations_if([[               yystack.yyerror_range[1].yystate.yyloc = yylloc;]])[
                  yyreportSyntaxError (&yystack]b4_user_args[);
                  goto yyuser_error;
                }
@@ -2336,8 +2334,8 @@ b4_dollar_popdef])[]dnl
                    yystack.yyerrState -= 1;
                }
              else if (yyisErrorAction (yyaction))
-                {]b4_locations_if([[
-                  yystack.yyerror_range[1].yystate.yyloc = yylloc;]])[
+                {
+]b4_locations_if([[               yystack.yyerror_range[1].yystate.yyloc = yylloc;]])[
                  yyreportSyntaxError (&yystack]b4_user_args[);
                  goto yyuser_error;
                }
@@ -2382,8 +2380,8 @@ b4_dollar_popdef])[]dnl
              if (yystack.yytops.yysize == 0)
                yyFail (&yystack][]b4_lpure_args[, YY_("syntax error"));
              YYCHK1 (yyresolveStack (&yystack]b4_user_args[));
-              YYDPRINTF ((stderr, "Returning to deterministic operation.\n"));]b4_locations_if([[
-              yystack.yyerror_range[1].yystate.yyloc = yylloc;]])[
+              YYDPRINTF ((stderr, "Returning to deterministic operation.\n"));
+]b4_locations_if([[           yystack.yyerror_range[1].yystate.yyloc = yylloc;]])[
              yyreportSyntaxError (&yystack]b4_user_args[);
              goto yyuser_error;
            }
@@ -2399,17 +2397,17 @@ b4_dollar_popdef])[]dnl
          for (yys = 0; yys < yystack.yytops.yysize; yys += 1)
            {
              int yyaction;
-              const short* yyconflicts;
+              const short int* yyconflicts;
              yyStateNum yystate = yystack.yytops.yystates[yys]->yylrState;
              yygetLRActions (yystate, yytoken_to_shift, &yyaction,
                              &yyconflicts);
              /* Note that yyconflicts were handled by yyprocessOneStack.  */
-              YYDPRINTF ((stderr, "On stack %lu, ", (unsigned long) yys));
+              YYDPRINTF ((stderr, "On stack %lu, ", (unsigned long int) yys));
              YY_SYMBOL_PRINT ("shifting", yytoken_to_shift, &yylval, &yylloc);
              yyglrShift (&yystack, yys, yyaction, yyposn,
                          &yylval]b4_locations_if([, &yylloc])[);
              YYDPRINTF ((stderr, "Stack %lu now in state #%d\n",
-                          (unsigned long) yys,
+                          (unsigned long int) yys,
                          yystack.yytops.yystates[yys]->yylrState));
            }

@@ -2464,9 +2462,9 @@ b4_dollar_popdef])[]dnl
              {
                while (yystates[yyk])
                  {
-                    yyGLRState *yys = yystates[yyk];]b4_locations_if([[
-                    yystack.yyerror_range[1].yystate.yyloc = yys->yyloc;]])[
-                    if (yys->yypred != YY_NULLPTR)
+                    yyGLRState *yys = yystates[yyk];
+]b4_locations_if([[                 yystack.yyerror_range[1].yystate.yyloc = yys->yyloc;]]
+)[                  if (yys->yypred != YY_NULLPTR)
                      yydestroyGLRState ("Cleanup: popping", yys]b4_user_args[);
                    yystates[yyk] = yys->yypred;
                    yystack.yynextFree -= 1;
@@ -2492,7 +2490,7 @@ yy_yypstack (yyGLRState* yys)
      YYFPRINTF (stderr, " -> ");
    }
  YYFPRINTF (stderr, "%d@@%lu", yys->yylrState,
-             (unsigned long) yys->yyposn);
+             (unsigned long int) yys->yyposn);
 }

 static void
@@ -2523,18 +2521,18 @@ yypdumpstack (yyGLRStack* yystackp)
  for (yyp = yystackp->yyitems; yyp < yystackp->yynextFree; yyp += 1)
    {
      YYFPRINTF (stderr, "%3lu. ",
-                 (unsigned long) (yyp - yystackp->yyitems));
+                 (unsigned long int) (yyp - yystackp->yyitems));
      if (*(yybool *) yyp)
        {
          YYASSERT (yyp->yystate.yyisState);
          YYASSERT (yyp->yyoption.yyisState);
          YYFPRINTF (stderr, "Res: %d, LR State: %d, posn: %lu, pred: %ld",
                     yyp->yystate.yyresolved, yyp->yystate.yylrState,
-                     (unsigned long) yyp->yystate.yyposn,
-                     (long) YYINDEX (yyp->yystate.yypred));
+                     (unsigned long int) yyp->yystate.yyposn,
+                     (long int) YYINDEX (yyp->yystate.yypred));
          if (! yyp->yystate.yyresolved)
            YYFPRINTF (stderr, ", firstVal: %ld",
-                       (long) YYINDEX (yyp->yystate
+                       (long int) YYINDEX (yyp->yystate
                                             .yysemantics.yyfirstVal));
        }
      else
@@ -2543,15 +2541,15 @@ yypdumpstack (yyGLRStack* yystackp)
          YYASSERT (!yyp->yyoption.yyisState);
          YYFPRINTF (stderr, "Option. rule: %d, state: %ld, next: %ld",
                     yyp->yyoption.yyrule - 1,
-                     (long) YYINDEX (yyp->yyoption.yystate),
-                     (long) YYINDEX (yyp->yyoption.yynext));
+                     (long int) YYINDEX (yyp->yyoption.yystate),
+                     (long int) YYINDEX (yyp->yyoption.yynext));
        }
      YYFPRINTF (stderr, "\n");
    }
  YYFPRINTF (stderr, "Tops:");
  for (yyi = 0; yyi < yystackp->yytops.yysize; yyi += 1)
-    YYFPRINTF (stderr, "%lu: %ld; ", (unsigned long) yyi,
-               (long) YYINDEX (yystackp->yytops.yystates[yyi]));
+    YYFPRINTF (stderr, "%lu: %ld; ", (unsigned long int) yyi,
+               (long int) YYINDEX (yystackp->yytops.yystates[yyi]));
  YYFPRINTF (stderr, "\n");
 }
 #endif
@@ -1,6 +1,6 @@
 # C++ GLR skeleton for Bison

-# Copyright (C) 2002-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015 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
@@ -177,7 +177,7 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
  | Print this symbol.  |
  `--------------------*/

-  void
+  inline void
  ]b4_parser_class_name[::yy_symbol_value_print_ (int yytype,
                           const semantic_type* yyvaluep]b4_locations_if([[,
                           const location_type* yylocationp]])[)
@@ -329,7 +329,7 @@ b4_percent_define_flag_if([[global_tokens_and_yystype]],
 b4_defines_if(
 [b4_output_begin([b4_spec_defines_file])
 b4_copyright([Skeleton interface for Bison GLR parsers in C++],
-             [2002-2015, 2018])[
+             [2002-2015])[

 // C++ GLR parser skeleton written by Akim Demaille.

@@ -2,7 +2,7 @@

 # Java skeleton dispatching for Bison.

-# Copyright (C) 2007, 2009-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2007, 2009-2015 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
@@ -2,7 +2,7 @@

 # Java language support for Bison

-# Copyright (C) 2007-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2007-2015 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
@@ -1,6 +1,6 @@
 # C++ skeleton for Bison

-# Copyright (C) 2002-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015 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
@@ -107,7 +107,7 @@ b4_dollar_pushdef([yysym.value],
                                [m4_dquote(b4_symbol([$1], [type]))]),
                   [yysym.location])dnl
      b4_symbol_case_([$1])
-b4_syncline([b4_symbol([$1], [$2_line])], [b4_symbol([$1], [$2_file])])
+b4_syncline([b4_symbol([$1], [$2_line])], ["b4_symbol([$1], [$2_file])"])
        b4_symbol([$1], [$2])
 b4_syncline([@oline@], [@ofile@])
        break;
@@ -131,7 +131,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))])])


 m4_pushdef([b4_copyright_years],
-           [2002-2015, 2018])
+           [2002-2015])

 m4_define([b4_parser_class_name],
          [b4_percent_define_get([[parser_class_name]])])
@@ -142,9 +142,9 @@ b4_bison_locations_if([# Backward compatibility.
 m4_include(b4_pkgdatadir/[stack.hh])
 b4_variant_if([m4_include(b4_pkgdatadir/[variant.hh])])

-# b4_shared_declarations(hh|cc)
-# -----------------------------
-# Declaration that might either go into the header (if --defines, $1 = hh)
+# b4_shared_declarations
+# ----------------------
+# Declaration that might either go into the header (if --defines)
 # or open coded in the parser body.
 m4_define([b4_shared_declarations],
 [b4_percent_code_get([[requires]])[
@@ -159,7 +159,6 @@ m4_define([b4_shared_declarations],
 ]b4_variant_if([b4_variant_includes])[

 ]b4_attribute_define[
-]b4_null_define[
 ]b4_YYDEBUG_define[

 ]b4_namespace_open[
@@ -315,8 +314,6 @@ b4_location_define])])[
      typedef basic_symbol<by_state> super_type;
      /// Construct an empty symbol.
      stack_symbol_type ();
-      /// Copy construct (for efficiency).
-      stack_symbol_type (const stack_symbol_type& that);
      /// Steal the contents from \a sym to build this.
      stack_symbol_type (state_type s, symbol_type& sym);
      /// Assignment, needed by push_back.
@@ -345,7 +342,7 @@ b4_location_define])])[
    void yypush_ (const char* m, state_type s, symbol_type& sym);

    /// Pop \a n symbols the three stacks.
-    void yypop_ (unsigned n = 1);
+    void yypop_ (unsigned int n = 1);

    /// Constants.
    enum
@@ -362,8 +359,8 @@ b4_location_define])])[
 ]b4_parse_param_vars[
  };

-]b4_token_ctor_if([b4_yytranslate_define([$1])[
-]b4_public_types_define([$1])])[
+]b4_token_ctor_if([b4_yytranslate_define
+b4_public_types_define])[
 ]b4_namespace_close[

 ]b4_percent_define_flag_if([[global_tokens_and_yystype]],
@@ -389,7 +386,7 @@ b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++])
 // C++ LALR(1) parser skeleton written by Akim Demaille.

 ]b4_cpp_guard_open([b4_spec_defines_file])[
-]b4_shared_declarations(hh)[
+]b4_shared_declarations[
 ]b4_cpp_guard_close([b4_spec_defines_file])
 b4_output_end()
 ])
@@ -409,7 +406,7 @@ m4_if(b4_prefix, [yy], [],
 ]b4_null_define[

 ]b4_defines_if([[#include "@basename(]b4_spec_defines_file[@)"]],
-               [b4_shared_declarations([cc])])[
+               [b4_shared_declarations])[

 // User implementation prologue.
 ]b4_user_post_prologue[
@@ -427,15 +424,6 @@ m4_if(b4_prefix, [yy], [],
 # endif
 #endif

-// Whether we are compiled with exception support.
-#ifndef YY_EXCEPTIONS
-# if defined __GNUC__ && !defined __EXCEPTIONS
-#  define YY_EXCEPTIONS 0
-# else
-#  define YY_EXCEPTIONS 1
-# endif
-#endif
-
 ]b4_locations_if([dnl
 [#define YYRHSLOC(Rhs, K) ((Rhs)[K].location)
 ]b4_yylloc_default_define])[
@@ -455,7 +443,7 @@ m4_if(b4_prefix, [yy], [],
    {                                           \
      *yycdebug_ << Title << ' ';               \
      yy_print_ (*yycdebug_, Symbol);           \
-      *yycdebug_ << '\n';                       \
+      *yycdebug_ << std::endl;                  \
    }                                           \
  } while (false)

@@ -474,9 +462,9 @@ m4_if(b4_prefix, [yy], [],
 #else // !]b4_api_PREFIX[DEBUG

 # define YYCDEBUG if (false) std::cerr
-# define YY_SYMBOL_PRINT(Title, Symbol)  YYUSE (Symbol)
-# define YY_REDUCE_PRINT(Rule)           static_cast<void> (0)
-# define YY_STACK_PRINT()                static_cast<void> (0)
+# define YY_SYMBOL_PRINT(Title, Symbol)  YYUSE(Symbol)
+# define YY_REDUCE_PRINT(Rule)           static_cast<void>(0)
+# define YY_STACK_PRINT()                static_cast<void>(0)

 #endif // !]b4_api_PREFIX[DEBUG

@@ -545,23 +533,27 @@ m4_if(b4_prefix, [yy], [],
  | Symbol types.  |
  `---------------*/

-]b4_token_ctor_if([], [b4_public_types_define([cc])])[
+]b4_token_ctor_if([], [b4_public_types_define])[

  // by_state.
+  inline
  ]b4_parser_class_name[::by_state::by_state ()
    : state (empty_state)
  {}

+  inline
  ]b4_parser_class_name[::by_state::by_state (const by_state& other)
    : state (other.state)
  {}

+  inline
  void
  ]b4_parser_class_name[::by_state::clear ()
  {
    state = empty_state;
  }

+  inline
  void
  ]b4_parser_class_name[::by_state::move (by_state& that)
  {
@@ -569,10 +561,12 @@ m4_if(b4_prefix, [yy], [],
    that.clear ();
  }

+  inline
  ]b4_parser_class_name[::by_state::by_state (state_type s)
    : state (s)
  {}

+  inline
  ]b4_parser_class_name[::symbol_number_type
  ]b4_parser_class_name[::by_state::type_get () const
  {
@@ -582,26 +576,23 @@ m4_if(b4_prefix, [yy], [],
      return yystos_[state];
  }

+  inline
  ]b4_parser_class_name[::stack_symbol_type::stack_symbol_type ()
  {}

-  ]b4_parser_class_name[::stack_symbol_type::stack_symbol_type (const stack_symbol_type& that)
-    : super_type (that.state]b4_locations_if([, that.location])[)
+
+  inline
+  ]b4_parser_class_name[::stack_symbol_type::stack_symbol_type (state_type s, symbol_type& that)
+    : super_type (s]b4_locations_if([, that.location])[)
  {
    ]b4_variant_if([b4_symbol_variant([that.type_get ()],
-                                      [value], [copy], [that.value])],
+                                      [value], [move], [that.value])],
                   [[value = that.value;]])[
-  }
-
-  ]b4_parser_class_name[::stack_symbol_type::stack_symbol_type (state_type s, symbol_type& that)
-    : super_type (s]b4_variant_if([], [, that.value])[]b4_locations_if([, that.location])[)
-  {]b4_variant_if([
-    b4_symbol_variant([that.type_get ()],
-                      [value], [move], [that.value])])[
    // that is emptied.
    that.type = empty_symbol;
  }

+  inline
  ]b4_parser_class_name[::stack_symbol_type&
  ]b4_parser_class_name[::stack_symbol_type::operator= (const stack_symbol_type& that)
  {
@@ -615,6 +606,7 @@ m4_if(b4_prefix, [yy], [],


  template <typename Base>
+  inline
  void
  ]b4_parser_class_name[::yy_destroy_ (const char* yymsg, basic_symbol<Base>& yysym) const
  {
@@ -646,6 +638,7 @@ m4_if(b4_prefix, [yy], [],
  }
 #endif

+  inline
  void
  ]b4_parser_class_name[::yypush_ (const char* m, state_type s, symbol_type& sym)
  {
@@ -653,6 +646,7 @@ m4_if(b4_prefix, [yy], [],
    yypush_ (m, t);
  }

+  inline
  void
  ]b4_parser_class_name[::yypush_ (const char* m, stack_symbol_type& s)
  {
@@ -661,8 +655,9 @@ m4_if(b4_prefix, [yy], [],
    yystack_.push (s);
  }

+  inline
  void
-  ]b4_parser_class_name[::yypop_ (unsigned n)
+  ]b4_parser_class_name[::yypop_ (unsigned int n)
  {
    yystack_.pop (n);
  }
@@ -694,7 +689,7 @@ m4_if(b4_prefix, [yy], [],
  }
 #endif // ]b4_api_PREFIX[DEBUG

-  ]b4_parser_class_name[::state_type
+  inline ]b4_parser_class_name[::state_type
  ]b4_parser_class_name[::yy_lr_goto_state_ (state_type yystate, int yysym)
  {
    int yyr = yypgoto_[yysym - yyntokens_] + yystate;
@@ -704,13 +699,13 @@ m4_if(b4_prefix, [yy], [],
      return yydefgoto_[yysym - yyntokens_];
  }

-  bool
+  inline bool
  ]b4_parser_class_name[::yy_pact_value_is_default_ (int yyvalue)
  {
    return yyvalue == yypact_ninf_;
  }

-  bool
+  inline bool
  ]b4_parser_class_name[::yy_table_value_is_error_ (int yyvalue)
  {
    return yyvalue == yytable_ninf_;
@@ -737,11 +732,11 @@ m4_if(b4_prefix, [yy], [],
    /// The return value of parse ().
    int yyresult;

-#if YY_EXCEPTIONS
+    // FIXME: This shoud be completely indented.  It is not yet to
+    // avoid gratuitous conflicts when merging into the master branch.
    try
-#endif // YY_EXCEPTIONS
      {
-    YYCDEBUG << "Starting parse\n";
+    YYCDEBUG << "Starting parse" << std::endl;

 ]m4_ifdef([b4_initial_action], [
 b4_dollar_pushdef([yyla.value], [], [yyla.location])dnl
@@ -758,7 +753,7 @@ b4_dollar_popdef])[]dnl

    // A new symbol was pushed on the stack.
  yynewstate:
-    YYCDEBUG << "Entering state " << yystack_[0].state << '\n';
+    YYCDEBUG << "Entering state " << yystack_[0].state << std::endl;

    // Accept?
    if (yystack_[0].state == yyfinal_)
@@ -768,6 +763,7 @@ b4_dollar_popdef])[]dnl

    // Backup.
  yybackup:
+
    // Try to take a decision without lookahead.
    yyn = yypact_[yystack_[0].state];
    if (yy_pact_value_is_default_ (yyn))
@@ -777,21 +773,17 @@ b4_dollar_popdef])[]dnl
    if (yyla.empty ())
      {
        YYCDEBUG << "Reading a token: ";
-#if YY_EXCEPTIONS
        try
-#endif // YY_EXCEPTIONS
          {]b4_token_ctor_if([[
            symbol_type yylookahead (]b4_lex[);
            yyla.move (yylookahead);]], [[
            yyla.type = yytranslate_ (]b4_lex[);]])[
          }
-#if YY_EXCEPTIONS
        catch (const syntax_error& yyexc)
          {
            error (yyexc);
            goto yyerrlab1;
          }
-#endif // YY_EXCEPTIONS
      }
    YY_SYMBOL_PRINT ("Next token is", yyla);

@@ -835,7 +827,7 @@ b4_dollar_popdef])[]dnl
    yylen = yyr2_[yyn];
    {
      stack_symbol_type yylhs;
-      yylhs.state = yy_lr_goto_state_ (yystack_[yylen].state, yyr1_[yyn]);]b4_variant_if([
+      yylhs.state = yy_lr_goto_state_(yystack_[yylen].state, yyr1_[yyn]);]b4_variant_if([
      /* Variants are always initialized to an empty instance of the
         correct type. The default '$$ = $1' action is NOT applied
         when using variants.  */
@@ -852,18 +844,15 @@ b4_dollar_popdef])[]dnl
        yylhs.value = yystack_@{0@}.value;])[
 ]b4_locations_if([dnl
 [
-      // Default location.
+      // Compute the default @@$.
      {
        slice<stack_symbol_type, stack_type> slice (yystack_, yylen);
        YYLLOC_DEFAULT (yylhs.location, slice, yylen);
-        yyerror_range[1].location = yylhs.location;
      }]])[

      // Perform the reduction.
      YY_REDUCE_PRINT (yyn);
-#if YY_EXCEPTIONS
      try
-#endif // YY_EXCEPTIONS
        {
          switch (yyn)
            {
@@ -872,13 +861,11 @@ b4_dollar_popdef])[]dnl
              break;
            }
        }
-#if YY_EXCEPTIONS
      catch (const syntax_error& yyexc)
        {
          error (yyexc);
          YYERROR;
        }
-#endif // YY_EXCEPTIONS
      YY_SYMBOL_PRINT ("-> $$ =", yylhs);
      yypop_ (yylen);
      yylen = 0;
@@ -931,7 +918,8 @@ b4_dollar_popdef])[]dnl
       YYERROR and the label yyerrorlab therefore never appears in user
       code.  */
    if (false)
-      goto yyerrorlab;
+      goto yyerrorlab;]b4_locations_if([[
+    yyerror_range[1].location = yystack_[yylen - 1].location;]])[
    /* Do not reclaim the symbols of the rule whose action triggered
       this YYERROR.  */
    yypop_ (yylen);
@@ -1003,12 +991,12 @@ b4_dollar_popdef])[]dnl

    return yyresult;
  }
-#if YY_EXCEPTIONS
    catch (...)
      {
-        YYCDEBUG << "Exception caught: cleaning lookahead and stack\n";
+        YYCDEBUG << "Exception caught: cleaning lookahead and stack"
+                 << std::endl;
        // Do not try to display the values of the reclaimed symbols,
-        // as their printers might throw an exception.
+        // as their printer might throw an exception.
        if (!yyla.empty ())
          yy_destroy_ (YY_NULLPTR, yyla);

@@ -1019,14 +1007,13 @@ b4_dollar_popdef])[]dnl
          }
        throw;
      }
-#endif // YY_EXCEPTIONS
  }

  void
  ]b4_parser_class_name[::error (const syntax_error& yyexc)
  {
    error (]b4_join(b4_locations_if([yyexc.location]),
-                    [[yyexc.what ()]])[);
+                    [[yyexc.what()]])[);
  }

  // Generate an error message.
@@ -1104,13 +1091,12 @@ b4_error_verbose_if([state_type yystate, const symbol_type& yyla],
        case N:                               \
          yyformat = S;                       \
        break
-      default: // Avoid compiler warnings.
-        YYCASE_ (0, YY_("syntax error"));
-        YYCASE_ (1, YY_("syntax error, unexpected %s"));
-        YYCASE_ (2, YY_("syntax error, unexpected %s, expecting %s"));
-        YYCASE_ (3, YY_("syntax error, unexpected %s, expecting %s or %s"));
-        YYCASE_ (4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
-        YYCASE_ (5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
+        YYCASE_(0, YY_("syntax error"));
+        YYCASE_(1, YY_("syntax error, unexpected %s"));
+        YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
+        YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
+        YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
+        YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
 #undef YYCASE_
      }

@@ -1158,18 +1144,18 @@ b4_error_verbose_if([state_type yystate, const symbol_type& yyla],
           i_end = yystack_.end ();
         i != i_end; ++i)
      *yycdebug_ << ' ' << i->state;
-    *yycdebug_ << '\n';
+    *yycdebug_ << std::endl;
  }

  // Report on the debug stream that the rule \a yyrule is going to be reduced.
  void
  ]b4_parser_class_name[::yy_reduce_print_ (int yyrule)
  {
-    unsigned yylno = yyrline_[yyrule];
+    unsigned int yylno = yyrline_[yyrule];
    int yynrhs = yyr2_[yyrule];
    // Print the symbols being reduced, and their result.
    *yycdebug_ << "Reducing stack by rule " << yyrule - 1
-               << " (line " << yylno << "):\n";
+               << " (line " << yylno << "):" << std::endl;
    // The symbols being reduced.
    for (int yyi = 0; yyi < yynrhs; yyi++)
      YY_SYMBOL_PRINT ("   $" << yyi + 1 << " =",
@@ -1177,7 +1163,7 @@ b4_error_verbose_if([state_type yystate, const symbol_type& yyla],
  }
 #endif // ]b4_api_PREFIX[DEBUG

-]b4_token_ctor_if([], [b4_yytranslate_define([cc])])[
+]b4_token_ctor_if([], [b4_yytranslate_define])[
 ]b4_namespace_close[
 ]b4_epilogue[]dnl
 b4_output_end()
@@ -1,6 +1,6 @@
 # Java skeleton for Bison -*- autoconf -*-

-# Copyright (C) 2007-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2007-2015 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
@@ -84,7 +84,7 @@ 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])
+             [2007-2015])

 b4_percent_define_ifdef([package], [package b4_percent_define_get([package]);
 ])[/* First part of user declarations.  */
@@ -1,4 +1,4 @@
-## Copyright (C) 2002, 2005-2015, 2018 Free Software Foundation, Inc.
+## Copyright (C) 2002, 2005-2015 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
@@ -1,6 +1,6 @@
 # C++ skeleton for Bison

-# Copyright (C) 2002-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015 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])
+           [2002-2015])

 # b4_position_define
 # ------------------
@@ -28,18 +28,19 @@ m4_define([b4_position_define],
  public:]m4_ifdef([b4_location_constructors], [[
    /// Construct a position.
    explicit position (]b4_percent_define_get([[filename_type]])[* f = YY_NULLPTR,
-                       unsigned l = ]b4_location_initial_line[u,
-                       unsigned c = ]b4_location_initial_column[u)
+                       unsigned int l = ]b4_location_initial_line[u,
+                       unsigned int c = ]b4_location_initial_column[u)
      : filename (f)
      , line (l)
      , column (c)
-    {}
+    {
+    }

 ]])[
    /// Initialization.
    void initialize (]b4_percent_define_get([[filename_type]])[* fn = YY_NULLPTR,
-                     unsigned l = ]b4_location_initial_line[u,
-                     unsigned c = ]b4_location_initial_column[u)
+                     unsigned int l = ]b4_location_initial_line[u,
+                     unsigned int c = ]b4_location_initial_column[u)
    {
      filename = fn;
      line = l;
@@ -68,15 +69,17 @@ m4_define([b4_position_define],
    /// File name to which this position refers.
    ]b4_percent_define_get([[filename_type]])[* filename;
    /// Current line number.
-    unsigned line;
+    unsigned int line;
    /// Current column number.
-    unsigned column;
+    unsigned int column;

  private:
-    /// Compute max(min, lhs+rhs).
-    static unsigned add_ (unsigned lhs, int rhs, int min)
+    /// Compute max(min, lhs+rhs) (provided min <= lhs).
+    static unsigned int add_ (unsigned int lhs, int rhs, unsigned int min)
    {
-      return static_cast<unsigned>(std::max(min, static_cast<int>(lhs) + rhs));
+      return (0 < rhs || -static_cast<unsigned int>(rhs) < lhs
+              ? rhs + lhs
+              : min);
    }
  };

@@ -132,7 +135,7 @@ m4_define([b4_position_define],
   ** \param pos a reference to the position to redirect
   */
  template <typename YYChar>
-  std::basic_ostream<YYChar>&
+  inline std::basic_ostream<YYChar>&
  operator<< (std::basic_ostream<YYChar>& ostr, const position& pos)
  {
    if (pos.filename)
@@ -154,27 +157,30 @@ m4_define([b4_location_define],
    location (const position& b, const position& e)
      : begin (b)
      , end (e)
-    {}
+    {
+    }

    /// Construct a 0-width location in \a p.
    explicit location (const position& p = position ())
      : begin (p)
      , end (p)
-    {}
+    {
+    }

    /// Construct a 0-width location in \a f, \a l, \a c.
    explicit location (]b4_percent_define_get([[filename_type]])[* f,
-                       unsigned l = ]b4_location_initial_line[u,
-                       unsigned c = ]b4_location_initial_column[u)
+                       unsigned int l = ]b4_location_initial_line[u,
+                       unsigned int c = ]b4_location_initial_column[u)
      : begin (f, l, c)
      , end (f, l, c)
-    {}
+    {
+    }

 ])[
    /// Initialization.
    void initialize (]b4_percent_define_get([[filename_type]])[* f = YY_NULLPTR,
-                     unsigned l = ]b4_location_initial_line[u,
-                     unsigned c = ]b4_location_initial_column[u)
+                     unsigned int l = ]b4_location_initial_line[u,
+                     unsigned int c = ]b4_location_initial_column[u)
    {
      begin.initialize (f, l, c);
      end = begin;
@@ -269,10 +275,10 @@ m4_define([b4_location_define],
   ** Avoid duplicate information.
   */
  template <typename YYChar>
-  std::basic_ostream<YYChar>&
+  inline std::basic_ostream<YYChar>&
  operator<< (std::basic_ostream<YYChar>& ostr, const location& loc)
  {
-    unsigned end_col = 0 < loc.end.column ? loc.end.column - 1 : 0;
+    unsigned int end_col = 0 < loc.end.column ? loc.end.column - 1 : 0;
    ostr << loc.begin;
    if (loc.end.filename
        && (!loc.begin.filename
@@ -1,6 +1,6 @@
 # C++ skeleton for Bison

-# Copyright (C) 2002-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015 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
@@ -16,44 +16,39 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.

 m4_pushdef([b4_copyright_years],
-           [2002-2015, 2018])
+           [2002-2015])

 # b4_stack_define
 # ---------------
 m4_define([b4_stack_define],
-[[  /// A stack with random access from its top.
-  template <class T, class S = std::vector<T> >
+[[  template <class T, class S = std::vector<T> >
  class stack
  {
  public:
    // Hide our reversed order.
    typedef typename S::reverse_iterator iterator;
    typedef typename S::const_reverse_iterator const_iterator;
-    typedef typename S::size_type size_type;

    stack ()
+      : seq_ ()
    {
      seq_.reserve (200);
    }

-    stack (size_type n)
+    stack (unsigned int n)
      : seq_ (n)
    {}

-    /// Random access.
-    ///
-    /// Index 0 returns the topmost element.
+    inline
    T&
-    operator[] (size_type i)
+    operator[] (unsigned int i)
    {
      return seq_[seq_.size () - 1 - i];
    }

-    /// Random access.
-    ///
-    /// Index 0 returns the topmost element.
+    inline
    const T&
-    operator[] (size_type i) const
+    operator[] (unsigned int i) const
    {
      return seq_[seq_.size () - 1 - i];
    }
@@ -61,6 +56,7 @@ m4_define([b4_stack_define],
    /// Steal the contents of \a t.
    ///
    /// Close to move-semantics.
+    inline
    void
    push (T& t)
    {
@@ -68,8 +64,9 @@ m4_define([b4_stack_define],
      operator[](0).move (t);
    }

+    inline
    void
-    pop (size_type n = 1)
+    pop (unsigned int n = 1)
    {
      for (; n; --n)
        seq_.pop_back ();
@@ -81,18 +78,21 @@ m4_define([b4_stack_define],
      seq_.clear ();
    }

-    size_type
+    inline
+    typename S::size_type
    size () const
    {
      return seq_.size ();
    }

+    inline
    const_iterator
    begin () const
    {
      return seq_.rbegin ();
    }

+    inline
    const_iterator
    end () const
    {
@@ -111,21 +111,21 @@ m4_define([b4_stack_define],
  class slice
  {
  public:
-    typedef typename S::size_type size_type;
-    slice (const S& stack, size_type range)
+    slice (const S& stack, unsigned int range)
      : stack_ (stack)
      , range_ (range)
    {}

+    inline
    const T&
-    operator[] (size_type i) const
+    operator [] (unsigned int i) const
    {
      return stack_[range_ - i];
    }

  private:
    const S& stack_;
-    size_type range_;
+    unsigned int range_;
  };
 ]])

@@ -1,6 +1,6 @@
 # C++ skeleton for Bison

-# Copyright (C) 2002-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015 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
@@ -27,7 +27,7 @@
 m4_define([b4_symbol_variant],
 [m4_pushdef([b4_dollar_dollar],
            [$2.$3< $][3 > (m4_shift3($@))])dnl
-switch ($1)
+  switch ($1)
    {
 b4_type_foreach([b4_type_action_])[]dnl
      default:
@@ -94,9 +94,8 @@ m4_define([b4_variant_define],
    typedef variant<S> self_type;

    /// Empty construction.
-    variant ()
-      : yybuffer_ ()]b4_parse_assert_if([
-      , yytypeid_ (YY_NULLPTR)])[
+    variant ()]b4_parse_assert_if([
+      : yytypeid_ (YY_NULLPTR)])[
    {}

    /// Construct and fill.
@@ -122,7 +121,7 @@ m4_define([b4_variant_define],
      YYASSERT (!yytypeid_);
      YYASSERT (sizeof (T) <= S);
      yytypeid_ = & typeid (T);])[
-      return *new (yyas_<T> ()) T ();
+      return *new (yyas_<T> ()) T;
    }

    /// Instantiate a \a T in here from \a t.
@@ -141,7 +140,6 @@ m4_define([b4_variant_define],
    T&
    as ()
    {]b4_parse_assert_if([
-      YYASSERT (yytypeid_);
      YYASSERT (*yytypeid_ == typeid (T));
      YYASSERT (sizeof (T) <= S);])[
      return *yyas_<T> ();
@@ -152,7 +150,6 @@ m4_define([b4_variant_define],
    const T&
    as () const
    {]b4_parse_assert_if([
-      YYASSERT (yytypeid_);
      YYASSERT (*yytypeid_ == typeid (T));
      YYASSERT (sizeof (T) <= S);])[
      return *yyas_<T> ();
@@ -335,7 +332,7 @@ m4_define([b4_basic_symbol_constructor_declare],
 [[
  basic_symbol (]b4_join(
          [typename Base::kind_type t],
-          b4_symbol_if([$1], [has_type], const b4_symbol([$1], [type])[& v]),
+          b4_symbol_if([$1], [has_type], const b4_symbol([$1], [type])[ v]),
          b4_locations_if([const location_type& l]))[);
 ]])

@@ -347,10 +344,10 @@ m4_define([b4_basic_symbol_constructor_define],
  template <typename Base>
  ]b4_parser_class_name[::basic_symbol<Base>::basic_symbol (]b4_join(
          [typename Base::kind_type t],
-          b4_symbol_if([$1], [has_type], const b4_symbol([$1], [type])[& v]),
+          b4_symbol_if([$1], [has_type], const b4_symbol([$1], [type])[ v]),
          b4_locations_if([const location_type& l]))[)
-    : Base (t)]b4_symbol_if([$1], [has_type], [
-    , value (v)])[]b4_locations_if([
+    : Base (t)
+    , value (]b4_symbol_if([$1], [has_type], [v])[)]b4_locations_if([
    , location (l)])[
  {}
 ]])
@@ -3,7 +3,7 @@
 <!--
    bison.xsl - common templates for Bison XSLT.

-    Copyright (C) 2007-2015, 2018 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015 Free Software Foundation, Inc.

    This file is part of Bison, the GNU Compiler Compiler.

@@ -3,7 +3,7 @@
 <!--
    xml2dot.xsl - transform Bison XML Report into DOT.

-    Copyright (C) 2007-2015, 2018 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015 Free Software Foundation, Inc.

    This file is part of Bison, the GNU Compiler Compiler.

@@ -3,7 +3,7 @@
 <!--
    xml2text.xsl - transform Bison XML Report into plain text.

-    Copyright (C) 2007-2015, 2018 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015 Free Software Foundation, Inc.

    This file is part of Bison, the GNU Compiler Compiler.

@@ -3,7 +3,7 @@
 <!--
    xml2html.xsl - transform Bison XML Report into XHTML.

-    Copyright (C) 2007-2015, 2018 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015 Free Software Foundation, Inc.

    This file is part of Bison, the GNU Compiler Compiler.

@@ -1,11 +1,11 @@
                                                             -*- C -*-
 # Yacc compatible skeleton for Bison

-# Copyright (C) 1984, 1989-1990, 2000-2015, 2018 Free Software
-# Foundation, Inc.
+# Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation,
+# Inc.

 m4_pushdef([b4_copyright_years],
-           [1984, 1989-1990, 2000-2015, 2018])
+           [1984, 1989-1990, 2000-2015])

 # 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
@@ -52,6 +52,8 @@ m4_define([b4_lac_flag],
                 [none], [[0]], [[1]])])

 m4_include(b4_pkgdatadir/[c.m4])
+m4_define([b4_yaxx],[$1])
+m4_define([b4_not_yaxx],[])

 ## ---------------- ##
 ## Default values.  ##
@@ -118,7 +120,7 @@ m4_define([b4_int_type],
       b4_ints_in($@,      [0], [65535]), [1], [yytype_uint16],
       b4_ints_in($@, [-32768], [32767]), [1], [yytype_int16],

-       m4_eval([0 <= $1]),                [1], [unsigned],
+       m4_eval([0 <= $1]),                [1], [unsigned int],

                                               [int])])

@@ -331,7 +333,11 @@ m4_if(b4_api_prefix, [yy], [],
 #define yydebug         ]b4_prefix[debug
 #define yynerrs         ]b4_prefix[nerrs
 ]]b4_pure_if([], [[
-#define yylval          ]b4_prefix[lval
+#define yylval          ]b4_prefix[lval]b4_yaxx([
+#define yytext  	]b4_prefix[text
+#define YYYAXX_XML  "b4_prefix[]yaxx.xml"
+#define YYYAXX_DTD  "b4_prefix[]yaxx.dtd"
+])[
 #define yychar          ]b4_prefix[char]b4_locations_if([[
 #define yylloc          ]b4_prefix[lloc]])]))[

@@ -377,13 +383,13 @@ typedef signed char yytype_int8;
 #ifdef YYTYPE_UINT16
 typedef YYTYPE_UINT16 yytype_uint16;
 #else
-typedef unsigned short yytype_uint16;
+typedef unsigned short int yytype_uint16;
 #endif

 #ifdef YYTYPE_INT16
 typedef YYTYPE_INT16 yytype_int16;
 #else
-typedef short yytype_int16;
+typedef short int yytype_int16;
 #endif

 #ifndef YYSIZE_T
@@ -395,7 +401,7 @@ typedef short yytype_int16;
 #  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
 #  define YYSIZE_T size_t
 # else
-#  define YYSIZE_T unsigned
+#  define YYSIZE_T unsigned int
 # endif
 #endif

@@ -420,6 +426,10 @@ typedef short yytype_int16;
 /* The parser invokes alloca or malloc; define the necessary symbols.  */]dnl
 b4_push_if([], [b4_lac_if([], [[

+]b4_yaxx([
+#define XML_ALLOC(X) malloc(X)
+#define XML_FREE(X) free(X)
+])[
 # ifdef YYSTACK_USE_ALLOCA
 #  if YYSTACK_USE_ALLOCA
 #   ifdef __GNUC__
@@ -494,7 +504,7 @@ void free (void *); /* INFRINGES ON USER NAME SPACE */
 union yyalloc
 {
  yytype_int16 yyss_alloc;
-  YYSTYPE yyvs_alloc;]b4_locations_if([
+  YYSTYPE yyvs_alloc;]b4_yaxx([char *yyxs_alloc;])[]b4_locations_if([
  YYLTYPE yyls_alloc;])[
 };

@@ -505,10 +515,10 @@ union yyalloc
   N elements.  */
 ]b4_locations_if(
 [# define YYSTACK_BYTES(N) \
-     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE) ]b4_yaxx([+ sizeof(char*) ])[) \
      + 2 * YYSTACK_GAP_MAXIMUM)],
 [# define YYSTACK_BYTES(N) \
-     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
+     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) ]b4_yaxx([+ sizeof(char*) ])[) \
      + YYSTACK_GAP_MAXIMUM)])[

 # define YYCOPY_NEEDED 1
@@ -571,7 +581,7 @@ union yyalloc
 #define YYMAXUTOK   ]b4_user_token_number_max[

 #define YYTRANSLATE(YYX)                                                \
-  ((unsigned) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)

 /* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
   as returned by yylex, without out-of-bounds checking.  */
@@ -580,19 +590,27 @@ static const ]b4_int_type_for([b4_translate])[ yytranslate[] =
  ]b4_translate[
 };

+]b4_not_yaxx([
 #if ]b4_api_PREFIX[DEBUG
+])[
 ]b4_integral_parser_table_define([rline], [b4_rline],
     [[YYRLINE[YYN] -- Source line where rule number YYN was defined.]])[
+]b4_not_yaxx([
 #endif
+])[

+]b4_not_yaxx([
 #if ]b4_api_PREFIX[DEBUG || YYERROR_VERBOSE || ]b4_token_table_flag[
+])[
 /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
 static const char *const yytname[] =
 {
  ]b4_tname[
 };
+]b4_not_yaxx([
 #endif
+])

 # ifdef YYPRINT
 /* YYTOKNUM[NUM] -- (External) token number corresponding to the
@@ -719,7 +737,7 @@ do {                                                            \
                   ])[[int yyrule], [yyrule]]m4_ifset([b4_parse_param], [,
                   b4_parse_param]))[
 {
-  unsigned long yylno = yyrline[yyrule];
+  unsigned long int yylno = yyrline[yyrule];
  int yynrhs = yyr2[yyrule];
  int yyi;
  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
@@ -827,7 +845,7 @@ yy_lac_stack_realloc (YYSIZE_T *yycapacity, YYSIZE_T yyadd,
      *yycapacity = yyalloc;]m4_if(b4_percent_define_get([[parse.lac.memory-trace]]),
                                   [full], [[
      YYDPRINTF ((stderr, "%srealloc to %lu%s", yydebug_prefix,
-                  (unsigned long) yyalloc, yydebug_suffix));]])[
+                  (unsigned long int) yyalloc, yydebug_suffix));]])[
    }
  return 0;
 }
@@ -1207,7 +1225,6 @@ yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
      case N:                               \
        yyformat = S;                       \
      break
-    default: /* Avoid compiler warnings. */
      YYCASE_(0, YY_("syntax error"));
      YYCASE_(1, YY_("syntax error, unexpected %s"));
      YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
@@ -1326,19 +1343,16 @@ b4_function_define([[yyparse]], [[int]], b4_parse_param)[
 ]b4_function_define([[yypstate_delete]], [[void]],
                   [[[yypstate *yyps]], [[yyps]]])[
 {
-  if (yyps)
-    {
 #ifndef yyoverflow
-      /* If the stack was reallocated but the parse did not complete, then the
-         stack still needs to be freed.  */
-      if (!yyps->yynew && yyps->yyss != yyps->yyssa)
-        YYSTACK_FREE (yyps->yyss);
+  /* If the stack was reallocated but the parse did not complete, then the
+     stack still needs to be freed.  */
+  if (!yyps->yynew && yyps->yyss != yyps->yyssa)
+    YYSTACK_FREE (yyps->yyss);
 #endif]b4_lac_if([[
-      if (!yyps->yynew && yyps->yyes != yyps->yyesa)
-        YYSTACK_FREE (yyps->yyes);]])[
-      free (yyps);]b4_pure_if([], [[
-      yypstate_allocated = 0;]])[
-    }
+  if (!yyps->yynew && yyps->yyes != yyps->yyesa)
+    YYSTACK_FREE (yyps->yyes);]])[
+  free (yyps);]b4_pure_if([], [[
+  yypstate_allocated = 0;]])[
 }
 ]b4_pure_if([[
 #define ]b4_prefix[nerrs yyps->]b4_prefix[nerrs]])[
@@ -1370,7 +1384,194 @@ b4_function_define([[yyparse]], [[int]], b4_parse_param)[
  [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
  [[[YYLTYPE *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
  b4_parse_param]))], [[
+]b4_yaxx([
+extern char *b4_prefix[]text;
+// Yijun Yu: utility functions -----------------------------------------------
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stddef.h>
+/// replace character terminals into symbolic terminals
+static char *YYTNAME(int r)
+{
+  static char yytname_buf[[8]];
+  if (strlen(yytname[[r]])==3 && yytname[[r]][[0]] == '\'' && yytname[[r]][[2]] == '\'') 
+  { 
+        sprintf(yytname_buf, "CHAR%d", (int)yytname[[r]][[1]]);
+        return yytname_buf;
+  } 
+  else if (strlen(yytname[[r]])>=2 && yytname[[r]][[0]] == 64 )
+  {
+    strcpy(yytname_buf,"ACTION");
+    strcat(yytname_buf,&(yytname[[r]][[1]]));
+    return yytname_buf;
+  }

+  return (char *)yytname[[r]];
+}
+#include <stdio.h>
+#include <stddef.h>
+static char *yytext_buf = NULL;
+
+/// replace a special character in the text into an entity
+static
+void replace_entity(char c, char *s)
+{
+    char *buf;
+    char *i;
+    int len, l;
+    i = yytext_buf;
+    do {
+        i =  (char *)index(i, c);
+        if (i) {
+            l = i - yytext_buf;
+            len = strlen(yytext_buf) + strlen(s) - 1;
+            //buf = (char*)YYSTACK_ALLOC(1000000);
+            buf = (char*)YYSTACK_ALLOC(len + 1); // Myo M Thein
+            if (l>0) {
+#if 1 // Myo M Thein
+		strncpy(buf, yytext_buf, l);
+#else
+		int t = 0;
+		while (t < l) {
+			buf[t] = yytext_buf[t]; 
+			t++;
+		}
+                buf[t] = 0;
+#endif
+            } else {
+                buf[[0]] = 0;
+            }
+            strcat(buf, s); 
+            strncat(buf, yytext_buf + l + 1, strlen(yytext_buf) - l); 
+            buf[[len]] = 0;
+            YYSTACK_FREE(yytext_buf); 
+            //yytext_buf = buf;
+	    memcpy(yytext_buf,buf,len+1);
+        i++;
+        if (*i=='\0')
+            i=NULL;
+        }
+    } while (i);
+}
+
+/// replace the special characters in the text into entities 
+static
+char* xml_encode( char ch)
+{
+  static char text[[2]];
+    switch(ch)
+    {
+    case '&':
+        return ( "&amp;");
+        break;
+    case '>':
+        return ( "&gt;");
+        break;
+    case '<' :
+        return ( "&lt;" );
+        break;
+    case  '\"':
+        return ( "&quot;");
+        break;
+    case '\'':
+        return ( "&apos;");
+        break;
+    default:
+        text[[0]]=ch;
+        text[[1]]=0;
+        return text;
+        break;
+    }
+}
+
+static
+void replace_special_entities(char *text,char *text_out)
+{
+  int i,lg;
+    if (!text) { strcpy(text_out,"??");return ; }
+    lg = strlen(text);
+    strcpy(text_out,"");
+    for (i=0;i<lg;i++)
+    {
+       strcat(text_out,xml_encode(text[[i]]));
+    }
+}
+static
+void generate_xml_output(char **yyxsp,char **yyxs)
+{
+#ifndef YYYAXX_XML 
+#define YYYAXX_XML  "yaxx.xml"
+#endif
+#ifndef YYYAXX_DTD
+#define YYYAXX_DTD "yaxx.dtd"
+#endif
+       int r, i, j;
+       char buf[[2000]];
+       int old_rule = 0;
+       FILE *stdout = fopen(YYYAXX_XML, "w");
+       char *p = *yyxsp + 6;
+#if 0
+       char *v = strsep(&p, ">");
+       strcpy(buf, v);
+#else
+	   i = 0;
+	   while (p[[i]]!='>') {
+		buf[[i]] = p[[i]];
+		i++;
+	   }
+	   buf[[i]]  = 0;
+#endif
+       /// Generating the XML document 
+       /// version 
+       fprintf(stdout,"<?xml version=\"1.0\"?>\n");
+       /// DTD reference
+       fprintf(stdout,"<?xml-stylesheet type=\"text/xsl\" href=\"yaxx.xsl\"?>");
+       fprintf(stdout,"<!DOCTYPE %s SYSTEM \"" YYYAXX_DTD "\">\n", buf);
+       /// inserting name space before the XML data
+       fprintf(stdout,"<yaxx:%s xmlns:yaxx=\"urn:YAcc-Xml-eXtension\"%s\n", buf,
+            yyxs[[1]]+i+6); //ffprintf(stdout,f, "%s\n", yyxs[[1]]);
+       /// Generating the document type definition (DTD) 
+       stdout = fopen(YYYAXX_DTD , "w");
+       /// DTD for non-terminals
+       for (r = 2; r < sizeof(yyr1)/sizeof(unsigned short); r++) 
+       {
+        j = yyr1[[r]];
+        if (j != old_rule) {
+        	if (old_rule!=0)
+        		fprintf(stdout,")>\n");
+	        fprintf(stdout,"<!ELEMENT %s (", YYTNAME(yyr1[[r]]));
+        } else
+	    	fprintf(stdout," | ");
+        if (yyr2[[r]]==0) 
+           fprintf(stdout,"EMPTY");
+        else {
+		/*
+        	int multiple = 0;
+            for (i = yyprhs[[r]]; yyrhs[[i]] > 0 ; i++)
+               if (i!=yyprhs[[r]]) {
+               	multiple = 1; break;
+               }
+       		if (multiple) fprintf(stdout,"(");
+            for (i = yyprhs[[r]]; yyrhs[[i]] > 0 ; i++) {
+               if (i!=yyprhs[[r]])
+                   fprintf(stdout,",");
+               fprintf(stdout,"%s", YYTNAME(yyrhs[[i]]));
+            }
+       		if (multiple) fprintf(stdout,")");
+		 */
+         }
+         old_rule = j;
+       }
+       fprintf(stdout,")>\n");
+       /// DTD for terminals
+       for (r = 3; r < YYNTOKENS; r++) 
+       {
+            fprintf(stdout,"<!ELEMENT %s (#PCDATA)>\n", YYTNAME(r));
+       }
+    
+}
+])[

 /*----------.
 | yyparse.  |
@@ -1402,7 +1603,26 @@ b4_function_define([[yyparse]], [[int]], b4_parse_param)[
  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
 #endif

+]b4_yaxx([
+
+  /* The tags stack. */
+  char *yyxsa[[YYINITDEPTH]];
+  char **yyxs = yyxsa;
+  char **yyxsp;
+])[
 #define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N)]b4_locations_if([, yylsp -= (N)])[)
+]b4_yaxx([
+#include <stdio.h>
+#include <string.h>
+#undef __GNUC_PREREQ
+#define __GNUC_PREREQ(maj, min) (maj < 4)
+#include <stdlib.h>
+#include <stddef.h>
+static char * yyxml_str=NULL; // for XML
+// for id attribute generation (by William Candillon)
+int _id = 0; 
+char str[[256]];
+])[

  /* The number of symbols on the RHS of the reduced rule.
     Keep to zero when no symbol should be popped.  */
@@ -1414,7 +1634,9 @@ b4_function_define([[yyparse]], [[int]], b4_parse_param)[
      goto yyread_pushed_token;
    }]])[

-  yyssp = yyss = yyssa;
+  yyssp = yyss = yyssa;]b4_yaxx([
+  yyxsp = yyxs = yyxsa;
+])[
  yyvsp = yyvs = yyvsa;]b4_locations_if([[
  yylsp = yyls = yylsa;]])[
  yystacksize = YYINITDEPTH;]b4_lac_if([[
@@ -1464,7 +1686,7 @@ b4_locations_if([[  yylsp[0] = ]b4_push_if([b4_pure_if([*])yypushed_loc], [yyllo
           these so that the &'s don't force the real ones into
           memory.  */
        YYSTYPE *yyvs1 = yyvs;
-        yytype_int16 *yyss1 = yyss;]b4_locations_if([
+        yytype_int16 *yyss1 = yyss;]b4_yaxx([ char **yyxs1 = yyxs;])[]b4_locations_if([
        YYLTYPE *yyls1 = yyls;])[

        /* Each stack pointer address is followed by the size of the
@@ -1473,9 +1695,9 @@ b4_locations_if([[  yylsp[0] = ]b4_push_if([b4_pure_if([*])yypushed_loc], [yyllo
           be undefined if yyoverflow is a macro.  */
        yyoverflow (YY_("memory exhausted"),
                    &yyss1, yysize * sizeof (*yyssp),
-                    &yyvs1, yysize * sizeof (*yyvsp),]b4_locations_if([
+                    &yyvs1, yysize * sizeof (*yyvsp),]b4_yaxx([&yyxs1, yysize * sizeof (*yyxsp),])[]b4_locations_if([
                    &yyls1, yysize * sizeof (*yylsp),])[
-                    &yystacksize);
+                    &yystacksize);]b4_yaxx([yyxs = yyxs1;])[
 ]b4_locations_if([
        yyls = yyls1;])[
        yyss = yyss1;
@@ -1499,7 +1721,7 @@ b4_locations_if([[  yylsp[0] = ]b4_push_if([b4_pure_if([*])yypushed_loc], [yyllo
        if (! yyptr)
          goto yyexhaustedlab;
        YYSTACK_RELOCATE (yyss_alloc, yyss);
-        YYSTACK_RELOCATE (yyvs_alloc, yyvs);]b4_locations_if([
+        YYSTACK_RELOCATE (yyvs_alloc, yyvs);]b4_yaxx([YYSTACK_RELOCATE (yyxs_alloc, yyxs);])[]b4_locations_if([
        YYSTACK_RELOCATE (yyls_alloc, yyls);])[
 #  undef YYSTACK_RELOCATE
        if (yyss1 != yyssa)
@@ -1509,11 +1731,11 @@ b4_locations_if([[  yylsp[0] = ]b4_push_if([b4_pure_if([*])yypushed_loc], [yyllo
 #endif /* no yyoverflow */

      yyssp = yyss + yysize - 1;
-      yyvsp = yyvs + yysize - 1;]b4_locations_if([
+      yyvsp = yyvs + yysize - 1;]b4_yaxx([yyxsp = yyxs + yysize - 1;])[]b4_locations_if([
      yylsp = yyls + yysize - 1;])[

      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
-                  (unsigned long) yystacksize));
+                  (unsigned long int) yystacksize));

      if (yyss + yystacksize - 1 <= yyssp)
        YYABORT;
@@ -1574,7 +1796,33 @@ yyread_pushed_token:]])[
    }
  else
    {
-      yytoken = YYTRANSLATE (yychar);
+      yytoken = YYTRANSLATE (yychar);]b4_yaxx([
+{ // Yijun Yu: process the terminal
+      yyxml_str = (char *) XML_ALLOC(200);
+      strcpy(yyxml_str, "<yaxx:");
+      strcat(yyxml_str, YYTNAME(yytoken));      
+#if 1 //William Candillon
+      strcat(yyxml_str, " id=\"");
+      sprintf(str, "%x", _id);
+      strcat(yyxml_str, str);
+      strcat(yyxml_str, "\"");
+      _id++;
+#endif
+      strcat(yyxml_str, ">");
+      if (yytoken < YYNTOKENS) {
+	  if (yytext) {
+		  char *tmp;
+		  tmp=(char *)YYSTACK_ALLOC(6*strlen(yytext)+1); 
+		  replace_special_entities(yytext,tmp);
+		  strcat(yyxml_str, tmp);
+		  YYSTACK_FREE(tmp);
+	  }
+      }
+      strcat(yyxml_str, "</yaxx:");
+      strcat(yyxml_str, YYTNAME(yytoken));
+      strcat(yyxml_str, ">\n");
+    }
+])[
      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
    }

@@ -1611,6 +1859,10 @@ yyread_pushed_token:]])[

  yystate = yyn;
  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+]b4_yaxx([
+  *++yyxsp = yyxml_str;
+  yyxml_str = 0;
+])[
  *++yyvsp = yylval;
  YY_IGNORE_MAYBE_UNINITIALIZED_END
 ]b4_locations_if([  *++yylsp = yylloc;])[
@@ -1645,9 +1897,8 @@ yyreduce:
  yyval = yyvsp[1-yylen];

 ]b4_locations_if(
-[[  /* Default location. */
-  YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);
-  yyerror_range[1] = yyloc;]])[
+[[  /* Default location.  */
+  YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);]])[
  YY_REDUCE_PRINT (yyn);]b4_lac_if([[
  {
    int yychar_backup = yychar;
@@ -1659,6 +1910,53 @@ yyreduce:
    if (yychar_backup != yychar)
      YY_LAC_DISCARD ("yychar change");
  }]], [[
+]b4_yaxx([
+  {
+      int len = 0;
+      int alloc_len=0;
+      int n = 0;
+      int yyi;
+      for (yyi = 0; yyi < yylen; yyi++)
+      {
+          int l;
+          char * yyxml_str = yyxsp[[yyi+1-yylen]];
+          if (yyxml_str==NULL) {
+            l = 0;
+          } else
+            l = strlen(yyxml_str);
+          len += l;
+	  n++;
+      }
+      alloc_len =len+100+2*strlen(YYTNAME(yyr1[[yyn]]));
+      yyxml_str = (char *) XML_ALLOC(alloc_len);
+      strcpy(yyxml_str, "<yaxx:");
+      strcat(yyxml_str, YYTNAME(yyr1[[yyn]]));
+#if 1 //William Candillon
+      strcat(yyxml_str, " id=\"");
+      sprintf(str, "%x", _id);
+      strcat(yyxml_str, str);
+      strcat(yyxml_str, "\"");
+      _id++;
+#endif
+      strcat(yyxml_str, ">\n");
+      for (yyi = 0; yyi < yylen; yyi++)
+      {
+          char * xml_str = yyxsp[[yyi+1-yylen]];
+          if (xml_str) {
+              strcat(yyxml_str, xml_str); 
+              XML_FREE(xml_str);
+              yyxsp[[yyi+1-yylen]] = NULL;
+          } else {
+            fprintf(stderr, "Warning! the %d-th argument is empty", yyi+1);
+          }
+      }
+      strcat(yyxml_str, "</yaxx:");
+      strcat(yyxml_str, YYTNAME(yyr1[[yyn]]));
+      strcat(yyxml_str, ">\n");
+      yyxsp -= n;
+      *++yyxsp = yyxml_str;
+      yyxml_str = NULL;
+    }])[
  switch (yyn)
    {
      ]b4_user_actions[
@@ -1787,7 +2085,8 @@ yyerrorlab:
  if (/*CONSTCOND*/ 0)
     goto yyerrorlab;

-  /* Do not reclaim the symbols of the rule whose action triggered
+]b4_locations_if([[  yyerror_range[1] = yylsp[1-yylen];
+]])[  /* Do not reclaim the symbols of the rule whose action triggered
     this YYERROR.  */
  YYPOPSTACK (yylen);
  yylen = 0;
@@ -1833,6 +2132,10 @@ yyerrlab1:
  YY_LAC_DISCARD ("error recovery");]])[

  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+]b4_yaxx([
+  *++yyxsp = yyxml_str;
+  yyxml_str = 0;
+])[
  *++yyvsp = yylval;
  YY_IGNORE_MAYBE_UNINITIALIZED_END
 ]b4_locations_if([[
@@ -1852,7 +2155,7 @@ yyerrlab1:
 /*-------------------------------------.
 | yyacceptlab -- YYACCEPT comes here.  |
 `-------------------------------------*/
-yyacceptlab:
+yyacceptlab:]b4_yaxx([generate_xml_output(--yyxsp,yyxs);])[
  yyresult = 0;
  goto yyreturn;

@@ -1,7 +1,7 @@
 # DJGPP Maintainer's Makefile                                    -*-Makefile-*-
 # Requires GNU sed

-## Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+## Copyright (C) 2005-2015 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
@@ -1,6 +1,6 @@
 This is a port of GNU Bison @VERSION@ to MSDOS/DJGPP.

-Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+Copyright (C) 2005-2015 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
@@ -4,7 +4,7 @@ Rem Configure Bison for DJGPP.
 Rem WARNING WARNING WARNING: This file needs to have DOS CRLF end-of-line
 Rem format, or else stock DOS/Windows shells will refuse to run it.

-Rem Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+Rem Copyright (C) 2005-2015 Free Software Foundation, Inc.

 Rem This program is free software: you can redistribute it and/or modify
 Rem it under the terms of the GNU General Public License as published by
@@ -2,7 +2,7 @@
 # Sed script for additional DJGPP specific editing
 # of the configure script generated by autoconf 2.62.

-# Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015 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
@@ -3,7 +3,7 @@
 # This is the config.site file for configuring GNU packages
 # which are to be built with DJGPP tools.

-# Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015 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
@@ -1,6 +1,6 @@
 # sed script for DJGPP specific editing of config.hin

-# Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015 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
@@ -7,7 +7,7 @@ Rem This batch file unpacks the Bison distribution while simultaneously
 Rem renaming some of the files whose names are invalid on DOS or conflict
 Rem with other file names after truncation to DOS 8+3 namespace.
 Rem
-Rem Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+Rem Copyright (C) 2005-2015 Free Software Foundation, Inc.
 Rem
 Rem This program is free software: you can redistribute it and/or modify
 Rem it under the terms of the GNU General Public License as published by
@@ -1,4 +1,4 @@
-## Copyright (C) 2008-2015, 2018 Free Software Foundation, Inc.
+## Copyright (C) 2008-2015 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
@@ -1,6 +1,6 @@
 /* Subprocesses with pipes.

-   Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+   Copyright (C) 2005-2015 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
@@ -1,6 +1,6 @@
 /* Subprocesses with pipes.

-   Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+   Copyright (C) 2005-2015 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
@@ -2,7 +2,7 @@
 # Sed script for additional DJGPP specific editing
 # of the testsuite script generated by autoconf 2.61.

-# Copyright (C) 2007-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2007-2015 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
@@ -1,5 +1,4 @@
-## Copyright (C) 2001-2003, 2005-2015, 2018 Free Software Foundation,
-## Inc.
+## Copyright (C) 2001-2003, 2005-2015 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
@@ -19,8 +19,7 @@
 \def\finalout{\overfullrule=0pt}
 %\finalout

-% Copyright (c) 1998, 2001, 2009-2015, 2018 Free Software Foundation,
-% Inc.
+% Copyright (c) 1998, 2001, 2009-2015 Free Software Foundation, Inc.
 %
 % This file is part of Bison.
 %
@@ -16,7 +16,7 @@ straightforward use of _build/src/bison would.)

 --

-Copyright (C) 2006, 2009-2015, 2018 Free Software Foundation, Inc.
+Copyright (C) 2006, 2009-2015 Free Software Foundation, Inc.

 This file is part of Bison, the GNU Compiler Compiler.

@@ -1,6 +1,6 @@
 #! /usr/bin/perl -w

-# Copyright (C) 2006, 2008-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2006, 2008-2015 Free Software Foundation, Inc.
 #
 # This file is part of Bison, the GNU Compiler Compiler.
 #
@@ -738,7 +738,7 @@ yy::parser::token_type yylex(yy::parser::semantic_type* yylvalp,
 void
 yy::parser::error(const yy::parser::location_type& loc, const std::string& msg)
 {
-  std::cerr << loc << ": " << msg << '\n';
+  std::cerr << loc << ": " << msg << std::endl;
 }

 int main(int argc, char *argv[])
@@ -1,4 +1,4 @@
-## Copyright (C) 2006, 2008-2015, 2018 Free Software Foundation, Inc.
+## Copyright (C) 2006, 2008-2015 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
@@ -1,40 +0,0 @@
-This directory contains examples of Bison grammar files.
-
-* mfcalc
-A C example of a multi-function calculator.  Extracted from the
-documentation.
-
-* calc++
-A C++ version of the canonical example for parsers: a calculator.  Also uses
-Flex for the scanner.  Extracted from the documentation.
-
-* variant.yy
-A C++ example that uses variants (they allow to use any C++ type as semantic
-value type) and symbol constructors (they ensure consistency between
-declared token type and effective semantic value).
-
-----
-
-Local Variables:
-mode: outline
-fill-column: 76
-End:
-
-Copyright (C) 2018 Free Software Foundation, Inc.
-
-This file is part of Bison, the GNU Compiler Compiler.
-
-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 <http://www.gnu.org/licenses/>.
-
-# LocalWords:  mfcalc calc parsers yy
@@ -2,18 +2,18 @@
 /*.tmp
 /.deps
 /calc++
+/calc++-driver.cc
+/calc++-driver.hh
+/calc++-parser.cc
+/calc++-parser.hh
+/calc++-parser.output
+/calc++-parser.stamp
+/calc++-parser.yy
+/calc++-scanner.cc
+/calc++-scanner.ll
 /calc++.cc
 /calc++.exe
 /calc.stamp
-/driver.cc
-/driver.hh
 /location.hh
-/parser.cc
-/parser.hh
-/parser.output
-/parser.stamp
-/parser.yy
 /position.hh
-/scanner.cc
-/scanner.ll
 /stack.hh
@@ -1,27 +0,0 @@
-# This Makefile is designed to be simple and readable.  It does not
-# aim at portability.  It requires GNU Make.
-
-BISON = bison
-CXX = g++
-FLEX = flex
-
-all: calc++
-
-%.cc %.hh: %.yy
-	$(BISON) $(BISONFLAGS) -o $*.cc $<
-
-%.cc: %.ll
-	$(FLEX) $(FLEXFLAGS) -o$@ $<
-
-%.o: %.cc
-	$(CXX) $(CXXFLAGS) -c -o$@ $<
-
-calc++: calc++.o driver.o parser.o scanner.o
-	$(CXX) -o $@ $^
-
-calc++.o: parser.hh
-parser.o: parser.hh
-scanner.o: parser.hh
-
-clean:
-	rm -f calc++ *.o parser.hh parser.cc scanner.cc
@@ -1,51 +0,0 @@
-This directory contains calc++, a simple Bison grammar file in C++.
-
-Please, read the corresponding chapter in the documentation: "A Complete C++
-Example".  It is also available on line (maybe with a different version of
-Bison):
-https://www.gnu.org/software/bison/manual/html_node/A-Complete-C_002b_002b-Example.html
-
-To use it, copy this directory into some work directory, and run `make` to
-compile the executable, and try it.  It is a simple calculator which accepts
-several variable definitions, one per line, and then a single expression to
-evaluate.
-
-The program calc++ expects the file to parse as argument; pass `-` to read
-the standard input (and then hit <Ctrl-d>, control-d, to end your input).
-
-$ ./calc++ -
-one := 1
-two := 2
-three := 3
-(one + two * three) * two * three
-<Ctrl-d>
-42
-
-You may pass `-p` to activate the parser debug traces, and `-s` to activate
-the scanner's.
-
-----
-
-Local Variables:
-mode: outline
-fill-column: 76
-End:
-
-Copyright (C) 2018 Free Software Foundation, Inc.
-
-This file is part of Bison, the GNU Compiler Compiler.
-
-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 <http://www.gnu.org/licenses/>.
-
-# LocalWords:  mfcalc calc parsers yy MERCHANTABILITY
@@ -1,6 +1,6 @@
 #! /bin/sh

-# Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015 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
@@ -1,5 +1,4 @@
-# Copyright (C) 2005-2006, 2008-2015, 2018 Free Software Foundation,
-# Inc.
+# Copyright (C) 2005-2006, 2008-2015 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 +19,7 @@

 # Don't depend on $(BISON) otherwise we would rebuild these files
 # in srcdir, including during distcheck, which is forbidden.
-%D%/parser.stamp: $(BISON_IN)
+%D%/calc++-parser.stamp: $(BISON_IN)
 SUFFIXES += .yy .stamp
 .yy.stamp:
 	$(AM_V_YACC)rm -f $@
@@ -28,14 +27,14 @@ SUFFIXES += .yy .stamp
 	$(AM_V_at)$(YACCCOMPILE) -o $*.cc $<
 	$(AM_V_at)mv -f $@.tmp $@

-$(calcxx_sources_generated): %D%/parser.stamp
-	@test -f $@ || rm -f %D%/parser.stamp
-	@test -f $@ || $(MAKE) $(AM_MAKEFLAGS) %D%/parser.stamp
-CLEANFILES +=					\
-  $(calcxx_sources_generated)			\
-  %D%/parser.output				\
-  %D%/parser.stamp				\
-  %D%/scanner.cc
+$(calcxx_sources_generated): %D%/calc++-parser.stamp
+	@test -f $@ || rm -f %D%/calc++-parser.stamp
+	@test -f $@ || $(MAKE) $(AM_MAKEFLAGS) %D%/calc++-parser.stamp
+CLEANFILES +=                                   \
+  $(calcxx_sources_generated)                   \
+  %D%/calc++-parser.output                      \
+  %D%/calc++-parser.stamp                       \
+  %D%/calc++-scanner.cc


 ## -------------------- ##
@@ -45,18 +44,18 @@ CLEANFILES +=					\
 # Avoid using BUILT_SOURCES which is too global.
 $(%C%_calc___OBJECTS): $(calcxx_sources_generated)

-calcxx_sources_extracted =			\
-  %D%/driver.cc					\
-  %D%/driver.hh					\
-  %D%/scanner.ll				\
+calcxx_sources_extracted =                      \
+  %D%/calc++-driver.cc                          \
+  %D%/calc++-driver.hh                          \
+  %D%/calc++-scanner.ll                         \
  %D%/calc++.cc
 calcxx_extracted =                              \
  $(calcxx_sources_extracted)                   \
-  %D%/parser.yy
+  %D%/calc++-parser.yy
 extracted += $(calcxx_extracted)
 calcxx_sources_generated =                      \
-  %D%/parser.cc                                 \
-  %D%/parser.hh                                 \
+  %D%/calc++-parser.cc                          \
+  %D%/calc++-parser.hh                          \
  %D%/location.hh                               \
  %D%/position.hh                               \
  %D%/stack.hh
@@ -83,4 +82,3 @@ endif

 calcxxdir = $(docdir)/examples/calc++
 calcxx_DATA = $(calcxx_extracted)
-dist_calcxx_DATA = %D%/README %D%/Makefile
@@ -0,0 +1,6 @@
+// Work around an Automake 1.11.2 bug: it asks for the creation of
+// y.tab.c and y.tab.h and then renames them as calc++-parser.cc and
+// calc++-parser.h, but in the former it does not convert the
+// #include "y.tab.h".  We don't want this to show in the
+// documentation.
+#include "calc++-parser.hh"
@@ -3,8 +3,8 @@

 # This file is part of GNU Bison

-# Copyright (C) 1992, 2000-2001, 2005-2006, 2009-2015, 2018 Free
-# Software Foundation, Inc.
+# Copyright (C) 1992, 2000-2001, 2005-2006, 2009-2015 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
@@ -45,7 +45,7 @@ sub normalize($)
 {
  local ($_) = @_;

-  s/^\@(c |comment|dots|end (ignore|group)|ignore|group).*\n//mg;
+  s/^\@(c |comment|dots|end (ignore|group)|ignore|group).*//mg;
  s/\@value\{VERSION\}/$ENV{VERSION}/g;
  s/^\@(error|result)\{\}//mg;
  s/\@([{}@])/$1/g;
@@ -65,21 +65,8 @@ sub message($)
    }
 }

-# The list of files we should extract.
-my @file_wanted;
-
-# Whether we should extract that file, and then under which path.
-sub file_wanted ($)
-{
-  my ($f) = @_;
-  for my $file (@file_wanted)
-    {
-      # No endswith in Perl 5...
-      return $file if $f eq substr($file, -length($f));
-    }
-  undef
-}
-
+# basename => full file name for files we should extract.
+my %file_wanted;

 sub process ($)
 {
@@ -102,9 +89,9 @@ sub process ($)
        {
          my $f = $1;
          $block = $2 || 1;
-          if (file_wanted($f))
+          if ($file_wanted{$f})
            {
-              $file = file_wanted($f);
+              $file = $file_wanted{$f};
              message(" GEN $file");
            }
          else
@@ -119,13 +106,13 @@ sub process ($)
              # Bison supports synclines, but not Flex.
              $input .= sprintf ("#line %s \"$in\"\n", $. + 1)
                if $synclines && $file =~ /\.[chy]*$/;
+              next;
            }
          elsif (/^\@end (small)?example$/)
            {
              die "no contents: $file"
                if $input eq "";

-              $file{$file}{$block} .= "\n" if defined $file{$file}{$block};
              $file{$file}{$block} .= normalize($input);
              $file = $input = undef;
              ++$block;
@@ -154,7 +141,8 @@ for my $arg (@ARGV)
 {
  if ($seen_dash)
    {
-      push @file_wanted, $arg;
+      use File::Basename;
+      $file_wanted{basename($arg)} = $arg;
    }
  elsif ($arg eq '--')
    {
@@ -1,4 +1,4 @@
-# Copyright (C) 2005, 2008-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2005, 2008-2015 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
@@ -26,9 +26,9 @@ AM_CXXFLAGS =							\
 doc = $(top_srcdir)/doc/bison.texi
 extexi = $(top_srcdir)/%D%/extexi
 if ENABLE_GCC_WARNINGS
-EXTEXIFLAGS = --synclines
+extexiFLAGS = --synclines
 endif
-extract = VERSION="$(VERSION)" $(PERL) $(extexi) $(EXTEXIFLAGS) $(doc) --
+extract = VERSION="$(VERSION)" $(PERL) $(extexi) $(extexiFLAGS) $(doc) --
 extracted =
 CLEANFILES += $(extracted) %D%/extracted.stamp
 %D%/extracted.stamp: $(doc) $(extexi)
@@ -41,19 +41,6 @@ $(extracted): %D%/extracted.stamp
 	@test -f $@ || rm -f %D%/extracted.stamp
 	@test -f $@ || $(MAKE) $(AM_MAKEFLAGS) %D%/extracted.stamp

-## ---------- ##
-## Examples.  ##
-## ---------- ##
-
-examplesdir = $(docdir)/examples
-dist_examples_DATA = %D%/README %D%/variant.yy
-
-check_PROGRAMS += %D%/variant
-nodist_%C%_variant_SOURCES = %D%/variant.yy
-%C%_variant_CPPFLAGS = -I$(top_builddir)
-dist_TESTS += %D%/variant.test
-
-
 include %D%/calc++/local.mk
 include %D%/mfcalc/local.mk
 include %D%/rpcalc/local.mk
@@ -1,5 +1,4 @@
-# Copyright (C) 2005-2006, 2008-2015, 2018 Free Software Foundation,
-# Inc.
+# Copyright (C) 2005-2006, 2008-2015 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
@@ -26,10 +25,10 @@ mfcalc_sources = $(mfcalc_extracted)
 extracted += $(mfcalc_extracted)

 check_PROGRAMS += %D%/mfcalc
-nodist_%C%_mfcalc_SOURCES = $(mfcalc_sources)
-%C%_mfcalc_CPPFLAGS = -I$(top_builddir)/%D%
 %C%_mfcalc_LDADD = -lm
+nodist_%C%_mfcalc_SOURCES = $(mfcalc_sources)

+%C%_mfcalc_CPPFLAGS = -I$(top_builddir)/%D%
 dist_TESTS += %D%/mfcalc.test

 ## ------------ ##
@@ -1,6 +1,6 @@
 #! /bin/sh

-# Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015 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
@@ -1,5 +1,4 @@
-# Copyright (C) 2005-2006, 2008-2015, 2018 Free Software Foundation,
-# Inc.
+# Copyright (C) 2005-2006, 2008-2015 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
@@ -26,10 +25,10 @@ rpcalc_sources = $(rpcalc_extracted)
 extracted += $(rpcalc_extracted)

 check_PROGRAMS += %D%/rpcalc
-nodist_%C%_rpcalc_SOURCES = $(rpcalc_sources)
-%C%_rpcalc_CPPFLAGS = -I$(top_builddir)/%D%
 %C%_rpcalc_LDADD = -lm
+nodist_%C%_rpcalc_SOURCES = $(rpcalc_sources)

+%C%_rpcalc_CPPFLAGS = -I$(top_builddir)/%D%
 dist_TESTS += %D%/rpcalc.test

 ## ------------ ##
@@ -1,6 +1,6 @@
 #! /bin/sh

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

-# Copyright (C) 2005-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015 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
@@ -27,18 +27,7 @@ exit=true
 cwd=`pwd`

 # The exercised program.
-for p in $cwd/examples/$me/$me $cwd/examples/$me
-do
-    if test -x "$p"; then
-        prog=$p
-        break
-    fi
-done
-if test x"$prog" = x; then
-    echo "$me: ERROR: cannot find program to exercise"
-    exit 1
-fi
-
+prog=$cwd/examples/$me/$me

 # cleanup
 # -------
@@ -1,19 +0,0 @@
-#! /bin/sh
-
-# Copyright (C) 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 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 <http://www.gnu.org/licenses/>.
-
-: >input
-run 0 "{I have three numbers for you., 1, 2, 3, And that's all!}"
@@ -1,5 +1,5 @@
 /*
-  Copyright (C) 2008-2015, 2018 Free Software Foundation, Inc.
+  Copyright (C) 2008-2015 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
@@ -25,9 +25,9 @@

 %code requires // *.hh
 {
+#include <list>
 #include <string>
-#include <vector>
-typedef std::vector<std::string> strings_type;
+typedef std::list<std::string> strings_type;
 }

 %code // *.cc
@@ -43,14 +43,14 @@ typedef std::vector<std::string> strings_type;
    static parser::symbol_type yylex ();
  }

-  // Printing a vector of strings.
-  // Koening look up will look into std, since that's an std::vector.
+  // Printing a list of strings.
+  // Koening look up will look into std, since that's an std::list.
  namespace std
  {
    std::ostream&
    operator<< (std::ostream& o, const strings_type& ss)
    {
-      o << '{';
+      o << "(" << &ss << ") {";
      const char *sep = "";
      for (strings_type::const_iterator i = ss.begin(), end = ss.end();
           i != end; ++i)
@@ -58,12 +58,13 @@ typedef std::vector<std::string> strings_type;
          o << sep << *i;
          sep = ", ";
        }
-      return o << '}';
+      return o << "}";
    }
  }

  // Conversion to string.
  template <typename T>
+    inline
    std::string
    string_cast (const T& t)
  {
@@ -75,26 +76,26 @@ typedef std::vector<std::string> strings_type;

 %token <::std::string> TEXT;
 %token <int> NUMBER;
-%printer { yyo << '(' << &$$ << ") " << $$; } <*>;
+%printer { yyoutput << $$; } <*>;
 %token END_OF_FILE 0;

 %type <::std::string> item;
-%type <::std::vector<std::string>> list;
+%type <::std::list<std::string>> list;

 %%

 result:
-  list  { std::cout << $1 << '\n'; }
+  list  { std::cout << $1 << std::endl; }
 ;

 list:
-  %empty     { /* Generates an empty string list */ }
-| list item  { std::swap ($$, $1); $$.push_back ($2); }
+  /* nothing */ { /* Generates an empty string list */ }
+| list item     { std::swap ($$, $1); $$.push_back ($2); }
 ;

 item:
-  TEXT    { std::swap ($$, $1); }
-| NUMBER  { $$ = string_cast ($1); }
+  TEXT          { std::swap ($$, $1); }
+| NUMBER        { $$ = string_cast ($1); }
 ;
 %%

@@ -114,7 +115,7 @@ namespace yy
  {
    static int stage = -1;
    ++stage;
-    parser::location_type loc(YY_NULLPTR, stage + 1, stage + 1);
+    parser::location_type loc(0, stage + 1, stage + 1);
    switch (stage)
      {
      case 0:
@@ -134,7 +135,7 @@ namespace yy
  void
  parser::error (const parser::location_type& loc, const std::string& msg)
  {
-    std::cerr << loc << ": " << msg << '\n';
+    std::cerr << loc << ": " << msg << std::endl;
  }
 }

@@ -4,7 +4,8 @@
 /*~
 /.deps
 /.dirstamp
-/_Noreturn.h
+/Makefile
+/Makefile.in
 /alignof.h
 /alloca.h
 /alloca.in.h
@@ -14,9 +15,7 @@
 /asnprintf.c
 /basename-lgpl.c
 /basename.c
-/binary-io.c
 /binary-io.h
-/bitrotate.c
 /bitrotate.h
 /c++defs.h
 /c-ctype.c
@@ -29,6 +28,8 @@
 /charset.alias
 /cloexec.c
 /cloexec.h
+/close-hook.c
+/close-hook.h
 /close-stream.c
 /close-stream.h
 /close.c
@@ -36,6 +37,7 @@
 /closeout.h
 /concat-filename.c
 /concat-filename.h
+/config.charset
 /config.h
 /config.in.h
 /configmake.h
@@ -54,6 +56,7 @@
 /exitfail.h
 /fatal-signal.c
 /fatal-signal.h
+/fclose.c
 /fcntl.c
 /fcntl.h
 /fcntl.in.h
@@ -78,27 +81,19 @@
 /fseterr.h
 /fstat.c
 /getdtablesize.c
-/getopt-cdefs.in.h
-/getopt-core.h
-/getopt-ext.h
-/getopt-pfx-core.h
-/getopt-pfx-ext.h
 /getopt.c
 /getopt.h
 /getopt.in.h
 /getopt1.c
 /getopt_int.h
-/getprogname.c
-/getprogname.h
 /gettext.h
 /gnulib.mk
-/hard-locale.c
-/hard-locale.h
 /hash.c
 /hash.h
 /intprops.h
 /inttypes.h
 /inttypes.in.h
+/ioctl.c
 /isnan.c
 /isnand-nolibm.h
 /isnand.c
@@ -108,15 +103,9 @@
 /isnanl.c
 /itold.c
 /ldexpl.c
-/limits.h
-/limits.in.h
 /localcharset.c
 /localcharset.h
-/lstat.c
 /malloc.c
-/malloca.c
-/malloca.h
-/math.c
 /math.h
 /math.in.h
 /mbrtowc.c
@@ -125,11 +114,12 @@
 /mbswidth.h
 /memchr.c
 /memchr.valgrind
-/minmax.h
 /msvc-inval.c
 /msvc-inval.h
 /msvc-nothrow.c
 /msvc-nothrow.h
+/nonblocking.c
+/nonblocking.h
 /obstack.c
 /obstack.h
 /obstack_printf.c
@@ -150,6 +140,7 @@
 /printf.c
 /progname.c
 /progname.h
+/quote.c
 /quote.h
 /quotearg.c
 /quotearg.h
@@ -158,10 +149,11 @@
 /rawmemchr.valgrind
 /realloc.c
 /ref-add.sed
+/ref-add.sin
 /ref-del.sed
+/ref-del.sin
 /sched.h
 /sched.in.h
-/sig-handler.c
 /sig-handler.h
 /sigaction.c
 /signal.h
@@ -190,8 +182,6 @@
 /spawnp.c
 /sprintf.c
 /stamp-h1
-/stat-w32.c
-/stat-w32.h
 /stat.c
 /stdbool.h
 /stdbool.in.h
@@ -202,6 +192,7 @@
 /stdio--.h
 /stdio-impl.h
 /stdio-safer.h
+/stdio-write.c
 /stdio.h
 /stdio.in.h
 /stdlib.h
@@ -222,17 +213,20 @@
 /strnlen.c
 /strverscmp.c
 /sys
+/sys_ioctl.h
 /sys_ioctl.in.h
+/sys_socket.h
 /sys_socket.in.h
+/sys_stat.h
 /sys_stat.in.h
 /sys_types.in.h
+/sys_wait.h
 /sys_wait.in.h
 /sysexits.in.h
 /time.h
 /time.in.h
 /unistd--.h
 /unistd-safer.h
-/unistd.c
 /unistd.h
 /unistd.in.h
 /unitypes.h
@@ -240,7 +234,6 @@
 /uniwidth
 /uniwidth.h
 /uniwidth.in.h
-/unlink.c
 /unlocked-io.h
 /unsetenv.c
 /vasnprintf.c
@@ -249,6 +242,7 @@
 /vfprintf.c
 /vsnprintf.c
 /vsprintf.c
+/w32sock.h
 /w32spawn.h
 /wait-process.c
 /wait-process.h
@@ -256,7 +250,6 @@
 /warn-on-use.h
 /wchar.h
 /wchar.in.h
-/wctype-h.c
 /wctype.h
 /wctype.in.h
 /wcwidth.c
@@ -267,9 +260,17 @@
 /xmalloc.c
 /xmemdup0.c
 /xmemdup0.h
-/xsize.c
 /xsize.h
 /xstrndup.c
 /xstrndup.h
-/stat-time.c
-/stat-time.h
+/binary-io.c
+/xsize.c
+/bitrotate.c
+/math.c
+/sig-handler.c
+/unistd.c
+/wctype-h.c
+/lstat.c
+/unlink.c
+/gettimeofday.c
+/sys_time.in.h
@@ -1,7 +1,7 @@
 /* Array bitsets.

-   Copyright (C) 2002-2003, 2006, 2009-2015, 2018 Free Software
-   Foundation, Inc.
+   Copyright (C) 2002-2003, 2006, 2009-2015 Free Software Foundation,
+   Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -146,7 +146,7 @@ abitset_list_reverse (bitset src, bitset_bindex *list,
  bitset_bindex rbitno;
  bitset_bindex count;
  bitset_windex windex;
-  unsigned bitcnt;
+  unsigned int bitcnt;
  bitset_bindex bitoff;
  bitset_word *srcp = ABITSET_WORDS (src);
  bitset_bindex n_bits = BITSET_SIZE_ (src);
@@ -302,7 +302,7 @@ abitset_list (bitset src, bitset_bindex *list,
 static inline void
 abitset_unused_clear (bitset dst)
 {
-  unsigned last_bit;
+  unsigned int last_bit;

  last_bit = BITSET_SIZE_ (dst) % BITSET_WORD_BITS;
  if (last_bit)
@@ -1,7 +1,6 @@
 /* Functions to support abitsets.

-   Copyright (C) 2002, 2004, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2004, 2009-2015 Free Software Foundation, Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -1,7 +1,7 @@
 /* Base bitset stuff.

-   Copyright (C) 2002-2004, 2006, 2009-2015, 2018 Free Software
-   Foundation, Inc.
+   Copyright (C) 2002-2004, 2006, 2009-2015 Free Software Foundation,
+   Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -50,8 +50,8 @@ extern const char * const bitset_type_names[];
 enum bitset_alloc_type {BITSET_MALLOC, BITSET_OBALLOC};

 /* Data type used to store a word of bits.  */
-typedef unsigned long bitset_word;
-#define BITSET_WORD_BITS ((unsigned) (CHAR_BIT * sizeof (bitset_word)))
+typedef unsigned long int bitset_word;
+#define BITSET_WORD_BITS ((unsigned int) (CHAR_BIT * sizeof (bitset_word)))

 /* Bit index.  In theory we might need a type wider than size_t, but
   in practice we lose at most a factor of CHAR_BIT by going with
@@ -1,7 +1,6 @@
 /* General bitsets.

-   Copyright (C) 2002-2006, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002-2006, 2009-2015 Free Software Foundation, Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -101,7 +100,7 @@ bitset_init (bitset bset, bitset_bindex n_bits, enum bitset_type type)
   specified by ATTR.  For variable size bitsets, N_BITS is only a
   hint and may be zero.  */
 enum bitset_type
-bitset_type_choose (bitset_bindex n_bits ATTRIBUTE_UNUSED, unsigned attr)
+bitset_type_choose (bitset_bindex n_bits ATTRIBUTE_UNUSED, unsigned int attr)
 {
  /* Check attributes.  */
  if (attr & BITSET_FIXED && attr & BITSET_VARIABLE)
@@ -169,7 +168,7 @@ bitset_obstack_alloc (struct obstack *bobstack,
 /* Create a bitset of N_BITS and with attribute hints specified by
   ATTR.  */
 bitset
-bitset_create (bitset_bindex n_bits, unsigned attr)
+bitset_create (bitset_bindex n_bits, unsigned int attr)
 {
  enum bitset_type type;

@@ -291,13 +290,13 @@ bitset_only_set_p (bitset src, bitset_bindex bitno)
 static void
 bitset_print (FILE *file, bitset bset, bool verbose)
 {
-  unsigned pos;
+  unsigned int pos;
  bitset_bindex i;
  bitset_iterator iter;

  if (verbose)
    fprintf (file, "n_bits = %lu, set = {",
-             (unsigned long) bitset_size (bset));
+             (unsigned long int) bitset_size (bset));

  pos = 30;
  BITSET_FOR_EACH (iter, bset, i, 0)
@@ -308,7 +307,7 @@ bitset_print (FILE *file, bitset bset, bool verbose)
        pos = 0;
      }

-    fprintf (file, "%lu ", (unsigned long) i);
+    fprintf (file, "%lu ", (unsigned long int) i);
    pos += 1 + (i >= 10) + (i >= 100);
  };

@@ -1,7 +1,6 @@
 /* Generic bitsets.

-   Copyright (C) 2002-2004, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002-2004, 2009-2015 Free Software Foundation, Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -40,7 +39,7 @@ enum bitset_attr {BITSET_FIXED = 1,    /* Bitset size fixed.  */
                  BITSET_FRUGAL = 16,  /* Prefer most compact.  */
                  BITSET_GREEDY = 32}; /* Prefer fastest at memory expense.  */

-typedef unsigned bitset_attrs;
+typedef unsigned int bitset_attrs;

 /* The contents of the union should be considered to be private.
   While I would like to make this union opaque, it needs to be
@@ -310,7 +309,7 @@ extern void bitset_dump (FILE *, bitset);

   BITSET_FOR_EACH (iter, src, i, 0)
   {
-      printf ("%lu ", (unsigned long) i);
+      printf ("%lu ", (unsigned long int) i);
   };
 */
 #define BITSET_FOR_EACH(ITER, BSET, INDEX, MIN)                               \
@@ -332,7 +331,7 @@ extern void bitset_dump (FILE *, bitset);

   BITSET_FOR_EACH_REVERSE (iter, src, i, 0)
   {
-      printf ("%lu ", (unsigned long) i);
+      printf ("%lu ", (unsigned long int) i);
   };
 */
 #define BITSET_FOR_EACH_REVERSE(ITER, BSET, INDEX, MIN)                       \
@@ -1,7 +1,6 @@
 /* Bitset statistics.

-   Copyright (C) 2002-2006, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002-2006, 2009-2015 Free Software Foundation, Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -77,23 +76,23 @@

 struct bitset_type_info_struct
 {
-  unsigned allocs;
-  unsigned frees;
-  unsigned lists;
-  unsigned sets;
-  unsigned cache_sets;
-  unsigned resets;
-  unsigned cache_resets;
-  unsigned tests;
-  unsigned cache_tests;
-  unsigned list_counts[BITSET_LOG_COUNT_BINS];
-  unsigned list_sizes[BITSET_LOG_SIZE_BINS];
-  unsigned list_density[BITSET_DENSITY_BINS];
+  unsigned int allocs;
+  unsigned int frees;
+  unsigned int lists;
+  unsigned int sets;
+  unsigned int cache_sets;
+  unsigned int resets;
+  unsigned int cache_resets;
+  unsigned int tests;
+  unsigned int cache_tests;
+  unsigned int list_counts[BITSET_LOG_COUNT_BINS];
+  unsigned int list_sizes[BITSET_LOG_SIZE_BINS];
+  unsigned int list_density[BITSET_DENSITY_BINS];
 };

 struct bitset_stats_info_struct
 {
-  unsigned runs;
+  unsigned int runs;
  struct bitset_type_info_struct types[BITSET_TYPE_NUM];
 };

@@ -106,10 +105,10 @@ bool bitset_stats_enabled = false;
 /* Print a percentage histogram with message MSG to FILE.  */
 static void
 bitset_percent_histogram_print (FILE *file, const char *name, const char *msg,
-                                unsigned n_bins, unsigned *bins)
+                                unsigned int n_bins, unsigned int *bins)
 {
-  unsigned i;
-  unsigned total;
+  unsigned int i;
+  unsigned int total;

  total = 0;
  for (i = 0; i < n_bins; i++)
@@ -130,11 +129,11 @@ bitset_percent_histogram_print (FILE *file, const char *name, const char *msg,
 /* Print a log histogram with message MSG to FILE.  */
 static void
 bitset_log_histogram_print (FILE *file, const char *name, const char *msg,
-                            unsigned n_bins, unsigned *bins)
+                            unsigned int n_bins, unsigned int *bins)
 {
-  unsigned i;
-  unsigned total;
-  unsigned max_width;
+  unsigned int i;
+  unsigned int total;
+  unsigned int max_width;

  total = 0;
  for (i = 0; i < n_bins; i++)
@@ -149,7 +148,7 @@ bitset_log_histogram_print (FILE *file, const char *name, const char *msg,
  n_bins = i;

  /* 2 * ceil (log10 (2) * (N - 1)) + 1.  */
-  max_width = 2 * (unsigned) (0.30103 * (n_bins - 1) + 0.9999) + 1;
+  max_width = 2 * (unsigned int) (0.30103 * (n_bins - 1) + 0.9999) + 1;

  fprintf (file, "%s %s", name, msg);
  for (i = 0; i < 2; i++)
@@ -158,7 +157,7 @@ bitset_log_histogram_print (FILE *file, const char *name, const char *msg,

  for (; i < n_bins; i++)
    fprintf (file, "%*lu-%lu\t%8u (%5.1f%%)\n",
-             max_width - ((unsigned) (0.30103 * (i) + 0.9999) + 1),
+             max_width - ((unsigned int) (0.30103 * (i) + 0.9999) + 1),
             1UL << (i - 1),
             (1UL << i) - 1,
             bins[i],
@@ -1,7 +1,6 @@
 /* Functions to support bitset statistics.

-   Copyright (C) 2002-2004, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002-2004, 2009-2015 Free Software Foundation, Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -1,6 +1,6 @@
 /* Bitset vectors.

-   Copyright (C) 2001-2002, 2004, 2006, 2009-2015, 2018 Free Software
+   Copyright (C) 2001-2002, 2004, 2006, 2009-2015 Free Software
   Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
@@ -54,7 +54,7 @@ bitsetv_matrix_dump (FILE * out, const char *title, bitsetv bset)
  /* Contents. */
  for (i = 0; bset[i]; ++i)
    {
-      fprintf (out, "%2lu|", (unsigned long) i);
+      fprintf (out, "%2lu|", (unsigned long int) i);
      for (j = 0; j < hsize; ++j)
        fputs (bitset_test (bset[i], j) ? "1" : " ", out);
      fputs ("|\n", out);
@@ -1,7 +1,6 @@
 /* Bitset vectors.

-   Copyright (C) 2002, 2004, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2004, 2009-2015 Free Software Foundation, Inc.

   Contributed by Akim Demaille (akim@freefriends.org).

@@ -1,6 +1,6 @@
 /* Bitset vectors.

-   Copyright (C) 2001-2002, 2004-2006, 2009-2015, 2018 Free Software
+   Copyright (C) 2001-2002, 2004-2006, 2009-2015 Free Software
   Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
@@ -62,7 +62,7 @@ bitsetv_alloc (bitset_bindex n_vecs, bitset_bindex n_bits,
 /* Create a vector of N_VECS bitsets, each of N_BITS, and with
   attribute hints specified by ATTR.  */
 bitset *
-bitsetv_create (bitset_bindex n_vecs, bitset_bindex n_bits, unsigned attr)
+bitsetv_create (bitset_bindex n_vecs, bitset_bindex n_bits, unsigned int attr)
 {
  enum bitset_type type;

@@ -146,7 +146,7 @@ bitsetv_dump (FILE *file, char const *title, char const *subtitle,
  fprintf (file, "%s\n", title);
  for (i = 0; bsetv[i]; i++)
    {
-      fprintf (file, "%s %lu\n", subtitle, (unsigned long) i);
+      fprintf (file, "%s %lu\n", subtitle, (unsigned long int) i);
      bitset_dump (file, bsetv[i]);
    }

@@ -161,7 +161,7 @@ debug_bitsetv (bitsetv bsetv)

  for (i = 0; bsetv[i]; i++)
    {
-      fprintf (stderr, "%lu: ", (unsigned long) i);
+      fprintf (stderr, "%lu: ", (unsigned long int) i);
      debug_bitset (bsetv[i]);
    }

@@ -1,7 +1,6 @@
 /* Bitset vectors.

-   Copyright (C) 2002, 2004, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2004, 2009-2015 Free Software Foundation, Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -31,7 +30,7 @@ extern bitsetv bitsetv_alloc (bitset_bindex, bitset_bindex, enum bitset_type);

 /* Create a vector of N_VECS bitsets, each of N_BITS, and with
   attribute hints specified by ATTR.  */
-extern bitsetv bitsetv_create (bitset_bindex, bitset_bindex, unsigned);
+extern bitsetv bitsetv_create (bitset_bindex, bitset_bindex, unsigned int);

 /* Free vector of bitsets.  */
 extern void bitsetv_free (bitsetv);
@@ -1,7 +1,6 @@
 /* Functions to support expandable bitsets.

-   Copyright (C) 2002-2006, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002-2006, 2009-2015 Free Software Foundation, Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -52,7 +51,7 @@

 /* Number of bits stored in each element.  */
 #define EBITSET_ELT_BITS \
-  ((unsigned) (EBITSET_ELT_WORDS * BITSET_WORD_BITS))
+  ((unsigned int) (EBITSET_ELT_WORDS * BITSET_WORD_BITS))

 /* Ebitset element.  We use an array of bits.  */
 typedef struct ebitset_elt_struct
@@ -433,7 +432,7 @@ ebitset_equal_p (bitset dst, bitset src)

  for (j = 0; j < EBITSET_SIZE (src); j++)
    {
-      unsigned i;
+      unsigned int i;
      ebitset_elt *selt = selts[j];
      ebitset_elt *delt = delts[j];

@@ -570,7 +569,7 @@ ebitset_list_reverse (bitset bset, bitset_bindex *list,
  bitset_bindex n_bits;
  bitset_bindex bitno;
  bitset_bindex rbitno;
-  unsigned bcount;
+  unsigned int bcount;
  bitset_bindex boffset;
  bitset_windex windex;
  bitset_windex eindex;
@@ -836,7 +835,7 @@ ebitset_list (bitset bset, bitset_bindex *list,
 static inline void
 ebitset_unused_clear (bitset dst)
 {
-  unsigned last_bit;
+  unsigned int last_bit;
  bitset_bindex n_bits;

  n_bits = BITSET_NBITS_ (dst);
@@ -923,7 +922,7 @@ ebitset_empty_p (bitset dst)
 static void
 ebitset_not (bitset dst, bitset src)
 {
-  unsigned i;
+  unsigned int i;
  ebitset_elt *selt;
  ebitset_elt *delt;
  bitset_windex j;
@@ -965,7 +964,7 @@ ebitset_subset_p (bitset dst, bitset src)

  for (j = 0; j < ssize; j++)
    {
-      unsigned i;
+      unsigned int i;
      ebitset_elt *selt;
      ebitset_elt *delt;

@@ -1007,7 +1006,7 @@ ebitset_disjoint_p (bitset dst, bitset src)

  for (j = 0; j < ssize; j++)
    {
-      unsigned i;
+      unsigned int i;
      ebitset_elt *selt;
      ebitset_elt *delt;

@@ -1040,7 +1039,7 @@ ebitset_op3_cmp (bitset dst, bitset src1, bitset src2, enum bitset_ops op)
  bitset_word *srcp2;
  bitset_word *dstp;
  bool changed = false;
-  unsigned i;
+  unsigned int i;
  bitset_windex j;

  ebitset_resize (dst, max (BITSET_NBITS_ (src1), BITSET_NBITS_ (src2)));
@@ -1,7 +1,6 @@
 /* Functions to support ebitsets.

-   Copyright (C) 2002, 2004, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2004, 2009-2015 Free Software Foundation, Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -1,7 +1,6 @@
 /* get-errno.c - get and set errno.

-   Copyright (C) 2002, 2006, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2006, 2009-2015 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
@@ -1,6 +1,6 @@
 /* get-errno.h - get and set errno.

-   Copyright (C) 2002, 2009-2015, 2018 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2009-2015 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
@@ -1,7 +1,7 @@
 /* Functions to support link list bitsets.

-   Copyright (C) 2002-2004, 2006, 2009-2015, 2018 Free Software
-   Foundation, Inc.
+   Copyright (C) 2002-2004, 2006, 2009-2015 Free Software Foundation,
+   Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -54,7 +54,7 @@ typedef bitset_word lbitset_word;

 /* Number of bits stored in each element.  */
 #define LBITSET_ELT_BITS \
-  ((unsigned) (LBITSET_ELT_WORDS * LBITSET_WORD_BITS))
+  ((unsigned int) (LBITSET_ELT_WORDS * LBITSET_WORD_BITS))

 /* Lbitset element.   We use an array of bits for each element.
   These are linked together in a doubly-linked list.  */
@@ -571,7 +571,7 @@ lbitset_list_reverse (bitset bset, bitset_bindex *list,
 {
  bitset_bindex rbitno;
  bitset_bindex bitno;
-  unsigned bcount;
+  unsigned int bcount;
  bitset_bindex boffset;
  bitset_windex windex;
  bitset_bindex count;
@@ -883,7 +883,7 @@ lbitset_empty_p (bitset dst)
 static inline void
 lbitset_unused_clear (bitset dst)
 {
-  unsigned last_bit;
+  unsigned int last_bit;
  bitset_bindex n_bits;

  n_bits = BITSET_SIZE_ (dst);
@@ -939,7 +939,7 @@ lbitset_not (bitset dst, bitset src)
  lbitset_elt *selt;
  lbitset_elt *delt;
  bitset_windex i;
-  unsigned j;
+  unsigned int j;
  bitset_windex windex;

  windex = (BITSET_SIZE_ (dst) + BITSET_WORD_BITS - 1) / BITSET_WORD_BITS;
@@ -966,7 +966,7 @@ lbitset_subset_p (bitset dst, bitset src)
 {
  lbitset_elt *selt;
  lbitset_elt *delt;
-  unsigned j;
+  unsigned int j;

  for (selt = LBITSET_HEAD (src), delt = LBITSET_HEAD (dst);
       selt || delt; selt = selt->next, delt = delt->next)
@@ -1003,7 +1003,7 @@ lbitset_disjoint_p (bitset dst, bitset src)
 {
  lbitset_elt *selt;
  lbitset_elt *delt;
-  unsigned j;
+  unsigned int j;

  for (selt = LBITSET_HEAD (src), delt = LBITSET_HEAD (dst);
       selt && delt; selt = selt->next, delt = delt->next)
@@ -1049,7 +1049,7 @@ lbitset_op3_cmp (bitset dst, bitset src1, bitset src2, enum bitset_ops op)
  bitset_word *srcp2;
  bitset_word *dstp;
  bool changed = false;
-  unsigned i;
+  unsigned int i;

  LBITSET_HEAD (dst) = 0;
  dst->b.csize = 0;
@@ -1376,17 +1376,17 @@ void
 debug_lbitset (bitset bset)
 {
  lbitset_elt *elt;
-  unsigned i;
+  unsigned int i;

  if (!bset)
    return;

  for (elt = LBITSET_HEAD (bset); elt; elt = elt->next)
    {
-      fprintf (stderr, "Elt %lu\n", (unsigned long) elt->index);
+      fprintf (stderr, "Elt %lu\n", (unsigned long int) elt->index);
      for (i = 0; i < LBITSET_ELT_WORDS; i++)
        {
-          unsigned j;
+          unsigned int j;
          bitset_word word;

          word = elt->words[i];
@@ -1,7 +1,6 @@
 /* Functions to support lbitsets.

-   Copyright (C) 2002, 2004, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2004, 2009-2015 Free Software Foundation, Inc.

   Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).

@@ -1,7 +1,6 @@
 /* Fake libiberty.h for Bison.

-   Copyright (C) 2002-2004, 2009-2015, 2018 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002-2004, 2009-2015 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
@@ -1,4 +1,4 @@
-# Copyright (C) 2001-2015, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015 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
@@ -1,6 +1,6 @@
 /* Yacc library main function.

-   Copyright (C) 2002, 2009-2015, 2018 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2009-2015 Free Software Foundation, Inc.

   This file is part of Bison, the GNU Compiler Compiler.

--- a/Show More
+++ b/Show More
@@ -1 +1 @@
 .0.5
 .0.4