X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/1e0348079323bc0dcf023e60873c976c77ece418..171ad99d6421935a278656be6dc7161591835d00:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
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+++ b/ChangeLog
@@ -1,3 +1,1830 @@
+2009-08-19  Akim Demaille  <demaille@gostai.com>
+
+	variables: simplify the upgrade of namespace into api.namespace.
+
+	This patch simplifies "variables: rename namespace as
+	api.namespace", commit 67501061076ba46355cfd9f9361c7eed861b389c.
+	Suggested by Joel E. Denny in
+	http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00006.html
+
+	* src/muscle-tab.c (muscle_percent_variable_update): New.
+	(muscle_percent_define_insert): Use it in replacement of the
+	previous tr invocation.
+	Remove variable_tr, no longer needed.
+	* data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy):
+	Remove.
+	* data/c++.m4: No longer handle namespace -> api.namespace.
+	* tests/input.at (%define backward compatibility): Check that
+	namespace is treated as api.namespace.
+
+2009-08-19  Akim Demaille  <demaille@gostai.com>
+
+	doc: %initial-action to initialize yylloc.
+	Reported by Bill Allombert.
+	* doc/bison.texinfo: Set fill-column to 76.
+	(Location Type): Document the use of %initial-action to initialize
+	yylloc.
+
+2009-08-19  Akim Demaille  <demaille@gostai.com>
+
+	lalr1.cc: use state_type.
+	* data/lalr1.cc (yysyntax_error_): Use state_type.
+	Move argument names into yy*.
+
+2009-08-19  Akim Demaille  <demaille@gostai.com>
+
+	lalr1.cc: get rid of yyparse's yystate.
+	yystate and yystack_[0].state are equal, keep only the latter.
+	The former was also used as a temporary variable to compute the
+	post-reduction state.  Move this computation into an auxiliary
+	function.
+
+	* data/glr.c (yyLRgotoState): Fuse variable definition and first
+	assignment.
+	* data/lalr1.cc (yy_lr_goto_state_): New.
+	(yyparse): Use it.
+	Replace remaining uses of yystate by yystate_[0].state.
+	Remove the former.
+
+2009-08-19  Akim Demaille  <demaille@gostai.com>
+
+	lalr1.cc: destroy $$ when YYERROR is called.
+	* data/lalr1.cc (yyreduce): Compute the resulting state before
+	running the user action so that yylhs is a valid symbol.
+	(yyerrorlab): Since yylhs is complete (it knows its type), we can
+	simply call yy_destroy_ to destroy $$ on YYERROR invocations.
+	* tests/c++.at (AT_CHECK_VARIANTS): Test YYERROR with variants.
+
+2009-08-18  Joel E. Denny  <jdenny@clemson.edu>
+
+	maint: update for gnulib's recent update-copyright changes
+	* gnulib: Update.
+	* .x-update-copyright (COPYING): Add as it's no longer implied
+	when .x-update-copyright is present.
+	* cfg.mk (update-copyright-local): Remove, now ignored.
+	(update-copyright): Declare update-b4-copyright as a dependency.
+
+2009-08-17  Akim Demaille  <demaille@gostai.com>
+
+	build: require gettext 0.17.
+
+	Suggested by Bruno Haible.
+	http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00009.html
+	* configure.ac: require gettext 0.17 to ensure compatibility with
+	gnulib.
+
+2009-08-17  Akim Demaille  <demaille@gostai.com>
+
+	build: lower gettext requirements.
+
+	Bison was uselessly requiring the formatstring macros from
+	gettext, which resulted in mo files not being installed on systems
+	that perfectly supported Bison mo files.  Lower the requirement.
+	http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00006.html
+
+        * configure.ac: Require need-ngettext instead of
+        need-formatstring-macros.
+        Reported by Martin Jabocs.
+        Suggested by Bruno Haible.
+        * INSTALL: Restructure.
+        (Internationalization): New.
+
+2009-08-14  Joel E. Denny  <jdenny@clemson.edu>
+
+	maint: fix use of copyright year intervals.
+	* gnulib: Update.
+	* bootstrap.conf (gnulib_modules): Update getopt to getopt-gnu
+	as now recommended in gnulib/NEWS.
+	* build-aux/update-b4-copyright: Fix.
+	* cfg.mk (update-copyright-env): Configure update-copyright.
+
+2009-08-13  Joel E. Denny  <jdenny@clemson.edu>
+
+	Make it easier to write deterministic tests.
+	Continues Akim's work from his 2009-06-10 commits.
+	* src/reader.c (check_and_convert_grammar): Don't add any
+	symbols after the first symbols_do invocation.
+	* src/symtab.c (symbols_sorted): New static global.
+	(user_token_number_redeclaration): Update comments.
+	(symbol_from_uniqstr): If a new symbol is being created, assert
+	that symbols_sorted hasn't been allocated yet.
+	(symbols_free): Free symbols_sorted.
+	(symbols_cmp, symbols_cmp_qsort): New functions.
+	(symbols_do): Sort symbol_table into symbols_sorted on first
+	invocation.
+	* tests/input.at (Numbered tokens): Recombine tests now that the
+	output should be deterministic across multiple numbers.
+
+2009-08-12  Akim Demaille  <demaille@gostai.com>
+
+	tests: GCC 4.5 compliance.
+	* tests/synclines.at (AT_SYNCLINES_COMPILE): Adjust to GCC 4.5's
+	messages about #error.
+
+2009-08-12  Akim Demaille  <demaille@gostai.com>
+
+	build: fix the generation of the documentation.
+	Some of our targets use "bison --help", but they can't depend on
+	"bison" itself (to avoid additional requirements on the user), so
+	they used to call "make src/bison" in the commands.  Then
+	concurrent builds may fail: one make might be aiming one of its
+	jobs at compiling src/bison, and another job at generating the man
+	page.  If the latter is faster than the former, then we have two
+	makes that concurrently try to compile src/bison.
+
+	This might also be a more convincing explanation for the failure
+	described in the patch "build: fix paths".
+
+	* Makefile.am (SUFFIXES): Initialize.
+	* build-aux/move-if-change: New, symlink to gnulib's.
+	* build-aux/local.mk: Ship it.
+	* doc/common.x: Remove, merged into...
+	* doc/bison.x: here.
+	* doc/local.mk (doc/bison.help): New.
+	($(CROSS_OPTIONS_TEXI)): Depend on it.
+	Use src/bison.
+	(.x.1): Replace with...
+	(doc/bison.1): this explicit, simpler, target.
+	(common_dep): Remove, inlined where appropriate.
+	(SUFFIXES, PREPATH): Remove, unused.
+
+2009-08-12  Akim Demaille  <demaille@gostai.com>
+
+	gnulib: improve prefixing.
+	* configure.ac (gl_PREFIXED_LIBOBJS): Don't rename it, rather,
+	change the value of...
+	(gl_LIBOBJS): this.
+	Adjust more variables.
+	* etc/prefix-gnulib-mk (prefix_assignment): Don't rename
+	gl_LIBOBJS.
+	(prefix): Also transform rules whose targets have slashes.
+	Use $prefix liberally.
+	Map @MKDIR_P@ to $(MKDIR_P).
+	Prefix directories that are mkdir'd.
+
+2009-08-12  Akim Demaille  <demaille@gostai.com>
+
+	build: fix paths.
+	When using $(top_builddir) inconsistently, Make (including GNU
+	Make) is sometimes confused.  As a result it may want to build
+	lib/libbison.la and $(top_builddir)/lib/libbison.la (the same
+	file, different names) concurrently, which, amusingly enough,
+	might end with:
+
+	  ranlib lib/libbison.a
+	  ranlib lib/libbison.a
+	  make[2]: *** [lib/libbison.a] Segmentation fault
+
+	on OS X.
+
+	* doc/local.mk, src/local.mk: Do not use $(top_builddir) when not
+	needed.
+
+2009-08-12  Akim Demaille  <demaille@gostai.com>
+
+	distcheck: fix.
+
+        * examples/calc++/Makefile.am: (EXTRA_DIST): Ship calc.stamp.
+
+2009-08-10  Joel E. Denny  <jdenny@clemson.edu>
+
+	* tests/local.mk (TESTSUITE_AT): Add named-refs.at.
+
+2009-08-10  Joel E. Denny  <jdenny@clemson.edu>
+
+	Miscellaneous code readability improvements.
+
+	* src/reader.c (reader): Move %define front-end variable
+	defaults and checking into...
+	(prepare_percent_define_front_end_variables): ... this new
+	function.
+
+	* src/scan-gram.l (INITIAL): For consistency with string
+	literals, don't store open quote on character literal.  It's
+	discarded before returning anyway.
+	(SC_ESCAPED_CHARACTER): Similarly, don't store close quote.
+	Make length test more readable, and make the character stored
+	for an empty literal more obvious while consistent with the
+	previous behavior.
+
+	* src/symtab.c, src/symtab.h: Rename USER_NUMBER_ALIAS to
+	USER_NUMBER_HAS_STRING_ALIAS throughout.
+	* src/symtab.c (symbol_make_alias): Remove comment from symtab.c
+	that is repeated in symtab.h.  Improve argument names to make it
+	clear which side of the symbol-string alias pair is which.
+	(symbol_check_alias_consistency): Improve local variable names
+	for the same purpose.
+	* src/symtab.h (struct symbol): Make comments about aliases
+	clearer.
+	(symbol_make_alias): Improve comments and argument name.
+	* src/output.c (token_definitions_output): Update for rename to
+	USER_NUMBER_HAS_STRING_ALIAS and improve comments about aliases.
+
+2009-08-08  Alex Rozenman  <rozenman@gmail.com>
+
+	Convert "misleading reference" messages to warnings.
+	* src/scan-code.l: New function 'show_sub_messages', more
+	factoring.
+	* tests/named-ref.at: Adjust tests.
+
+2009-08-06  Joel E. Denny  <jdenny@clemson.edu>
+
+	maint: run "make update-copyright"
+
+2009-08-06  Joel E. Denny  <jdenny@clemson.edu>
+
+	maint: make update-b4-copyright easier to use
+	* build-aux/update-b4-copyright: In warnings, report line
+	numbers rather than character positions.
+	* cfg.mk (update-copyright-local): Set to update-b4-copyright so
+	that update-copyright runs it.
+	* gnulib: Update.
+
+2009-08-05  Joel E. Denny  <jdenny@clemson.edu>
+
+	maint: clean up update-b4-copyright code
+	* build-aux/update-b4-copyright: Do not accept 2-digit
+	UPDATE_COPYRIGHT_YEAR, which was not handled correctly.
+	Don't accept a `[' in a b4_copyright argument.
+	Format code more consistently.
+	Don't assume b4*copyright never occurs.
+
+2009-08-04  Joel E. Denny  <jdenny@clemson.edu>
+
+	maint: automate b4_copyright updates.
+	* Makefile.am (update-b4-copyright): New target rule.
+	* build-aux/local.mk (EXTRA_DIST): Add update-b4-copyright.
+	* build-aux/update-b4-copyright: New.
+	* data/yacc.c: Remove stray characters around b4_copyright
+	invocations.
+
+2009-08-04  Joel E. Denny  <jdenny@clemson.edu>
+
+	maint: automate annual package-wide copyright-year update.
+	* .x-update-copyright: New.
+	* Makefile.am (EXTRA_DIST): Remove maint.mk.
+	* bootstrap.conf (gnulib_modules): Add maintainer-makefile and
+	update-copyright.  Remove gnumakefile, which is implied by
+	maintainer-makefile.
+	* cfg.mk (bootstrap-tools): Copy from old maint.mk.
+	* gnulib: Update.
+	* maint.mk: Remove, now copied from gnulib.
+	* examples/extexi: Add missing "(C)" in copyright statement so
+	update-copyright can recognize it.
+	* src/LR0.h: Likewise.
+	* src/print.h: Likewise.
+	* src/print_graph.h: Likewise.
+	* src/gram.c: Add missing comma in copyright statement.
+	* src/gram.h: Likewise.
+
+2009-08-04  Joel E. Denny  <jdenny@clemson.edu>
+
+	Fix "make distcheck".
+	* examples/calc++/Makefile.am: Say $(srcdir)/calc.stamp instead
+	of just calc.stamp.
+
+2009-08-01  Joel E. Denny  <jdenny@clemson.edu>
+
+	Pacify "gcc -Wunused" for the input function from Flex.
+	Reported by Alex Rozenman.  This warning shows up with gcc-4.3.0
+	and later.
+	* src/scan-code.l: Add "%option noinput", which I cannot find in
+	the Flex manual, but which Flex has supported since at least as
+	far back as 2.5.4.  However, if any of our developers still use
+	Flex 2.5.4, they'll need to stop configuring with
+	--enable-gcc-warnings because "%option noinput" didn't work
+	correctly until Flex 2.5.6.
+	* src/scan-gram.l: Likewise.
+	* src/scan-skel.l: Likewise.
+
+2009-07-31  Alex Rozenman  <rozenman@gmail.com>
+
+	Fix --enable-gcc-warnings problems.
+	* src/reader.c: Adjust variable names.
+	* src/scan-code.l: Fix prototypes and adjust names.
+	* src/named-ref.c: Remove redundant "if".
+
+2009-07-29  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Fix a --enable-gcc-warnings problem.
+	* src/scan-gram.l (SC_ESCAPED_CHARACTER): Actually use length
+	variable.
+
+2009-07-24  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Warn about character literals not of length one.
+	* NEWS (2.5): Document.
+	* src/scan-gram.l (INITIAL): Remove comment that we don't check
+	the length.
+	(SC_ESCAPED_CHARACTER): Warn if length is wrong.
+	* tests/input.at (Bad character literals): New test group.
+
+2009-07-24  Alex Rozenman  <rozenman@gmail.com>
+
+	Fix some memory leaks.
+	* src/named-ref.c: Add a pointer check (named_ref_free).
+	* src/scan-code.l: New function (variant_table_free). Called in
+	code_scanner_free.
+	* src/symlist.c: Call to named_ref_free (symbol_list_free).
+
+2009-07-24  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* src/lalr.c (state_lookahead_tokens_count): Correct comment.
+
+2009-07-22  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Some M4 cleanup in the testsuite.
+	Suggested by Eric Blake at
+	<http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00083.html>.
+	* tests/existing.at (_AT_TEST_EXISTING_GRAMMAR): Do not
+	complicate the code by distinguishing between a missing value
+	and an empty string value for an optional argument.  This fix is
+	allowed by the similar fix in AT_TEST_TABLES_AND_PARSE below.
+	* tests/local.at (_AT_TEST_TABLES_AND_PARSE): Merge into...
+	(AT_TEST_TABLES_AND_PARSE): ... this now that the special
+	arguments are not needed because of the following changes.
+	Fix stale comments.
+	Bison developers should use GNU M4 and should not use
+	POSIXLY_CORRECT when building the test suite, so do not
+	complicate the code by avoiding $10 and above.
+	Do not quote an empty string value for an optional argument, and
+	do not distinguish between a missing value and an empty string
+	value.
+
+2009-07-15  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Revert unnecessary column realignment in --help output.
+	Reported by Akim Demaille at
+	<http://lists.gnu.org/archive/html/bison-patches/2009-06/msg00010.html>.
+	* src/getargs.c (usage): Here.
+
+2009-07-04  Alex Rozenman  <rozenman@gmail.com>
+
+	Alphabetical order in src/local.mk.
+	* src/local.mk: Adjust.
+
+2009-07-04  Alex Rozenman  <rozenman@gmail.com>
+
+	Style changes and factoring.
+	* src/named-ref.h: Add comments.
+	* src/parse-gram.y: Readability and style changes.
+	* src/reader.c: Factoring: assign_named_ref function.
+	* src/scan-code.l: Factoring and style changes. Rename
+	parse_named_ref to parse_ref. Use "c-ctype.h" from gnulib.
+	Use "unsigned" type for variant index. Improve readablity.
+	* src/scan-gram.l: Change error messages and add comments.
+	* src/symlist.h: symbol_list_null: New function decl.
+	* src/symlist.c: symbol_list_null: Implement here.
+	* tests/named-refs.at: Adjust for new error messages.
+
+2009-06-29  Eric Blake  <ebb9@byu.net>
+
+	scan-code: avoid compiler warnings
+	* src/scan-code.l (parse_named_ref): Use correct specifiers.
+
+2009-06-29  Akim Demaille  <demaille@gostai.com>
+
+	build: avoid concurrent extraction of calc++.
+	* examples/calc++/Makefile.am (calc.stamp): New.
+	Depend on it to create the sources of calc++ so that concurrent
+	builds don't launch several "extexi" in parallel.
+	Not only this is inefficient, this also builds incorrect sources
+	with several extractions mixed together.
+
+2009-06-29  Akim Demaille  <demaille@gostai.com>
+
+	parse.error: fix.
+	* data/bison.m4: Move code related to specific variables after the
+	definition of the variable-maintaining macros so that we don't
+	"invoke" b4_percent_define_check_values before it is defined.
+
+2009-06-29  Akim Demaille  <demaille@gostai.com>
+
+	variables: parse.error
+
+	Implement, document, and test the replacement of %error-verbose
+	by %define parse.error "verbose".
+	* data/bison.m4 (b4_error_verbose_if): Reimplement to track the
+	values of the parse.error variable.
+	Make "simple" its default value.
+	Check the valid values.
+	* src/parse-gram.y: Use %define parse.error.
+	(PERCENT_ERROR_VERBOSE): New token.
+	Support it.
+	* src/scan-gram.l: Support %error-verbose.
+
+	* doc/bison.texinfo (Decl Summary): Replace the documentation of
+	%define error-verbose by that of %define parse.error.
+	* NEWS: Document it.
+
+	* tests/actions.at, tests/calc.at: Use parse.error instead of
+	%error-verbose.
+
+2009-06-27  Alex Rozenman  <rozenman@gmail.com>
+
+	Implement support for named symbol references.
+	* src/parse-gram.y: Add new syntax (named_ref.opt).
+	* src/reader.c: Store named refs in symbol lists.
+	* src/reader.h: New argument for symbol_append and
+	action_append functions.
+	* src/scan-code.h: Add new field (named_ref) into
+	code_props data structure. Keeps named ref of midrule
+	actions.
+	* src/scan-code.l: Support for named refs in semantic
+	action code. New function 'parse_named_ref'.
+	* src/scan-gram.l: Support bracketed id.
+	* src/symlist.c: Store named refs in symbol lists.
+	* src/symlist.h: New field in symbol list: named_ref.
+	* src/named-ref.h: New file, a struct for named_ref.
+	* src/named-ref.cp: New file, named_ref_new function.
+	* src/local.mk: Add two new files.
+	* tests/testsuite.at: Include new test group:
+	* tests/named-refs.at: this new file.
+
+2009-06-25  Akim Demaille  <demaille@gostai.com>
+
+	hash: check insertion for memory exhaustion.
+	* src/uniqstr.c (uniqstr_new): New.
+
+2009-06-24  Akim Demaille  <demaille@gostai.com>
+
+	variables: rename namespace as api.namespace.
+	Discussed in
+	http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00033.html
+
+	* data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy):
+	New.
+	(b4_percent_define_use): New.
+	Use it where applicable.
+	* data/c++.m4: Replace uses of the variable "namespace" by
+	"api.namespace".
+	Default the latter to the former.
+	* doc/bison.texinfo (Decl Summary): Document "namespace" as
+	obsolete.
+	Document api.namespace.
+	Use @samp to document %define uses, keep @code for identifiers.
+	* NEWS: Likewise.
+	* tests/c++.at, tests/input.at: Test api.namespace instead of
+	namespace. (The tests passed with namespace.)
+
+2009-06-11  Akim Demaille  <demaille@gostai.com>
+
+	style changes.
+	* data/xslt/xml2dot.xsl, data/xslt/xml2xhtml.xsl: Space changes.
+	* src/print-xml.c: Style changes.
+	* tests/conflicts.at: Comment changes.
+
+2009-06-11  Akim Demaille  <demaille@gostai.com>
+
+	xml: beware of user strings used to give a %prec to rules.
+	* tests/conflicts.at (%prec with user strings): New.
+	* src/gram.c (grammar_rules_print_xml): Escape the precedence for
+	XML output.
+
+2009-06-11  Akim Demaille  <demaille@gostai.com>
+
+	hash: check insertion for memory exhaustion.
+	* src/muscle-tab.c (muscle_insert, muscle_grow)
+	* src/state.c (state_hash_insert): Check the return value of
+	hash_insert.
+
+2009-06-11  Akim Demaille  <demaille@gostai.com>
+
+	tests: honor TESTSUITEFLAGS in every check target.
+	* tests/local.mk (RUN_TESTSUITE): New.
+	(check-local, installcheck-local, maintainer-check-g++)
+	(maintainer-check-posix, maintainer-check-valgrind): Use it.
+
+2009-06-10  Akim Demaille  <demaille@gostai.com>
+
+	deterministic test suite.
+	Some consistency checks on symbols are performed after all the
+	symbols were read, by an iteration over the symbol table.  This
+	traversal is nondeterministic, which can be a problem for test
+	cases.
+	Avoid this.
+	Addresses another form of nondeterminism reported by Joel E. Denny.
+	http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
+
+	* tests/input.at (Numbered tokens): Split the hexadecimal/decimal
+	test in two.
+	Use different file names for the three tests to make the
+	maintenance easier.
+
+2009-06-10  Akim Demaille  <demaille@gostai.com>
+
+	gnulib: update.
+        * gnulib: Update to latest.
+        * lib/.cvsignore, lib/.gitignore, m4/.cvsignore,
+        * m4/.gitignore: Regen.
+        * src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr):
+        Call xalloc_die on hash_insert failures.
+        Requested by the new __warn_unused_result__ attribute of
+        hash_insert.
+
+2009-06-10  Akim Demaille  <demaille@gostai.com>
+
+	deterministic user-token-number redeclaration errors.
+	Address nondeterminism reported by Joel E. Denny.
+	http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
+
+	* src/uniqstr.h: Comment changes.
+	* src/location.h (boundary_cmp, location_cmp): New.
+	* src/symtab.c (user_token_number_redeclaration): New.
+	(symbol_translation): Use it.
+	* tests/input.at (Numbered tokens): Adjust the expected output.
+
+2009-05-25  Akim Demaille  <demaille@gostai.com>
+
+	build: avoid ignored errors.
+	* doc/local.mk ($(CROSS_OPTIONS_TEXI)): Don't generate ignored
+	errors, they pollute the output.
+
+2009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Convert multiple variable definition warnings to complaints.
+	* NEWS (2.5): Add a new entry for that change.
+	* doc/bison.texinfo (Decl Summary): Update %define entry.
+	(Bison Options): Update -D/--define/-F/--force-define entry.
+	* src/muscle-tab.c (muscle_percent_define_insert): Implement.
+	* src/muscle-tab.h (muscle_percent_define_insert): Update
+	comments.
+	* tests/input.at (`%define errors'): Update.
+	(`%define, --define, --force-define'): Update.
+
+2009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	-F/--force-define and relative %define/-D/--define priorities.
+	* NEWS (2.5): Add documentation to -D/--define entry.
+	* build-aux/cross-options.pl: Hard-code association of
+	--force-define with %define.
+	* doc/bison.texinfo (Decl Summary): In %define entry,
+	cross-reference command-line options.
+	(Bison Options): Add documentation to -D/--define entry.
+	(Option Cross Key): Widen column for --force-define row.
+	* src/getargs.c (usage): Document -F/--force-define.  Realign
+	options in output.
+	(short_options, long_options, getargs): Parse -F/--force-define,
+	and update muscle_percent_define_insert invocations.
+	* src/muscle-tab.h (muscle_percent_define_how): New enum type.
+	(muscle_percent_define_insert): Add argument with that type.
+	* src/muscle-tab.c (muscle_percent_define_insert): Implement
+	-F/--force-define behavior and priorities.
+	(muscle_percent_define_ensure): Update
+	muscle_percent_define_insert invocation.
+	* src/parse-gram.y (prologue_declaration): Update
+	muscle_percent_define_insert invocations.
+	* tests/input.at (`%define, --define'): Rename to...
+	(`%define, --define, --force-define'): ... this and extend.
+
+2009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Update some comments to make sense for -D.
+	* data/bison.m4 (b4_check_user_names): In header comments, say
+	"user occurrence" instead of "grammar occurrence".
+	* src/muscle-tab.h (muscle_percent_define_insert): Likewise.
+	(muscle_percent_code_grow): Likewise just for consistency.
+
+2009-05-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* data/c++.m4 (b4_namespace_close): Simplify slightly.
+
+2009-05-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Handle a trailing `:' in a user-supplied C++ namespace better.
+	* data/c++.m4 (b4_namespace_close): Don't let it be printed
+	among the closing braces here.  This fix might make the
+	generated code easier to debug, but otherwise it should be
+	insignificant because a trailing `:' is a C++ error already.
+
+2009-05-19  Akim Demaille  <demaille@gostai.com>
+
+	remove useless variable.
+	* src/getargs.c (skeleton_arg): Remove now useless variable.
+	Should help the compiler see that this printf-like call is sane.
+
+2009-05-15  Akim Demaille  <demaille@gostai.com>
+
+	Rename token.prefix as api.tokens.prefix.
+	Discussed here.
+	http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00024.html.
+
+	* NEWS, data/bison.m4, data/c.m4, data/java.m4, doc/bison.texinfo,
+	* tests/c++.at, tests/calc.at, tests/java.at, tests/local.at
+	(token.prefix): Rename as...
+	(api.tokens.prefix): this.
+
+2009-05-11  Akim Demaille  <demaille@gostai.com>
+
+	doc: use C++ headers.
+	* doc/bison.texinfo (Calc++ Scanner): Prefer C++ headers to C
+	headers.
+
+2009-05-11  Akim Demaille  <demaille@gostai.com>
+
+	doc: token.prefix
+	* doc/bison.simple (Decl Summary): Document token.prefix.
+	(Calc++ Parser): Various fixes.
+	Formatting changes.
+	Use token.prefix.
+	Introduce a macro TOKEN to shorten the code and make it more
+	readable.
+	(Calc++ Scanner): Adjust.
+	* NEWS (Variable token.prefix): New.
+
+2009-05-04  Akim Demaille  <demaille@gostai.com>
+
+	bison: catch bad symbol names.
+	* src/scan-gram.l({int}{id}): Report as an invalid identifier.
+	* tests/input.at: Adjust.
+
+2009-05-04  Akim Demaille  <demaille@gostai.com>
+
+	identifiers: dashes are letters.
+	Dashes can now start identifiers (symbols and directives).
+
+	* src/scan-gram.l ({letter}): Add dash.
+	({id}): Remove it.
+	* tests/input.at (Symbols): Adjust.
+	Remove stray comment.
+	* tests/regression.at (Invalid inputs): Adjust error message.
+	* doc/bison.texinfo (Symbols): Update.
+
+2009-05-01  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Declare %code to be a permanent feature.
+	* NEWS (2.4.2): Here.
+	* doc/bison.texinfo (Prologue Alternatives): Don't say it's
+	experimental.
+	(Decl Summary): Likewise.
+
+2009-04-30  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Convert underscores to dashes in some %define variable names.
+	For now, just api.push-pull and lr.keep-unreachable-states.
+	Maintain old names for backward compatibility.
+	* NEWS (2.5): Document.
+	* data/c.m4 (b4_identification): Update comment.
+	* data/yacc.c: Update access.
+	* doc/bison.texinfo: Update.
+	* etc/bench.pl.in (bench_push_parser): Update use.
+	* src/files.c (tr): Move to...
+	* src/getargs.c, src/getargs.h (tr): ... here because I can't
+	think of a better place to expose it.  My logic is that, for all
+	uses of tr so far, command-line arguments can be involved, and
+	getargs.h is already included.
+	* src/main.c (main): Update access.
+	* src/muscle_tab.c (muscle_percent_define_insert): Convert old
+	variable names to new variable names before assigning value.
+	* src/reader.c (reader): Update setting default.
+	* tests/calc.at: Update uses.
+	* tests/conflicts.at (Unreachable States After Conflict
+	Resolution): Update use.
+	* tests/input.at (%define enum variables): Update use.
+	(%define backward compatibility): New test group.
+	* tests/push.at: Update uses.
+	* tests/reduce.at: Update uses.
+	* tests/torture.at: Update uses.
+
+2009-04-30  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Set all front-end %define defaults in one place.
+	* src/main.c (main): Move lr.keep_unreachable_states default...
+	* src/reader.c (reader): ... to here.
+
+2009-04-29  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Rename lr.default_reductions to lr.default-reductions.
+	* NEWS (2.5): Here.
+	* doc/bison.texinfo: Here.
+	* src/lalr.c (initialize_LA): Here.
+	* src/print.c (print_reductions): Here.
+	* src/reader.c (reader): Here.
+	* src/tables.c (action_row): Here.
+	* tests/input.at (%define enum variables): Here.
+	* tests/reduce.at (AT_TEST_LR_DEFAULT_REDUCTIONS): Here.
+
+2009-04-29  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Pacify ./configure --enable-gcc-warnings.
+	* tests/input.at (Symbols): Prototype yyerror and yylex.
+
+2009-04-29  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Document how `%define "var" "value"' is not M4-friendly.
+	* src/parse-gram.y (variable): In comments here.
+
+2009-04-24  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Clean up recent patches a little.
+	Reported by Akim Demaille.
+	* doc/bison.texinfo (Understanding): Fix typos.
+	* src/print.c (print_reductions): Don't use negated variable.
+
+2009-04-24  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	List accepted values for a %define enum variable with an invalid value.
+	Suggested by Akim Demaille at
+	<http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00082.html>.
+	* data/bison.m4 (_b4_percent_define_check_values): Implement.
+	* src/muscle-tab.c (muscle_percent_define_check_values): Implement.
+	* tests/input.at (%define lr.default_reductions invalid values): Merge
+	into...
+	(%define enum variables): ... here, and update output.
+
+2009-04-23  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Rename "default rule" to "default reduction".
+	This includes changing variable names in code, changing
+	comments, and renaming %define lr.default_rules to %define
+	lr.default_reductions.
+	* NEWS (2.5): Update IELR documentation.
+	* data/bison.m4 (b4_integral_parser_tables_map): Adjust YYDEFACT
+	documentation.
+	* data/glr.c, data/lalr1.java: Sync copyright dates.
+	* doc/bison.texinfo (Decl Summary): Adjust lr.default_reductions
+	and lr.type documentation.  Make some other wording
+	improvements.
+	(Glossary): Adjust cross-references and Default Reduction
+	definition.
+	* src/lalr.c (state_lookahead_tokens_count): Adjust code.
+	Remove a confusing comment pointed out by Akim Demaille.
+	(initialize_LA): Adjust code.
+	* src/print-xml.c (print_reductions): Adjust code.
+	* src/print.c (print_reductions): Adjust code.
+	* src/reader.c (reader): Adjust code.
+	* src/tables.c (action_row): Adjust code.
+	(token_actions): Adjust code.
+	* src/tables.h: Adjust YYDEFACT documentation.
+	* tests/input.at (%define lr.default_rules invalid values):
+	Rename test group to...
+	(%define lr.default_reductions invalid values): ... this, and
+	update grammar file and expected output.
+	* tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): Rename to...
+	(AT_TEST_LR_DEFAULT_REDUCTIONS): ... this, and update.
+
+2009-04-21  Akim Demaille  <demaille@gostai.com>
+
+	tests: check the use of dashes and periods in symbols.
+	* tests/input.at (Symbol): New test group.
+
+2009-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Document %define lr.type and lr.default_rules.
+	* NEWS (2.5): Add an entry.
+	* src/getargs.c (usage): Mention IELR(1) and canonical LR(1)
+	besides just LALR(1) and GLR(1).
+	* doc/bison.texinfo (Introduction): Likewise.
+	(Language and Grammar): Bison is no longer limited to LALR(1)
+	restrictions.
+	(GLR parsing): Say deterministic or LR(1) rather than LALR(1)
+	when trying to distinguish from GLR.  Talk about LR(1) grammars
+	rather than LALR(1) grammars.
+	(Decl Summary): In %define api.push_pull entry, say it applies
+	to deterministic parsers in C rather than LALR(1) parsers in C.
+	Add lr.default_rules entry.
+	Add lr.type entry.
+	(Mystery Conflicts): Bison is no longer limited to LALR(1)
+	restrictions.
+	(Generalized LR Parsing): Same changes as for the previous GLR
+	section.
+	(Memory Management): Say deterministic rather than LALR(1).
+	(Understanding): Correct some bison output.
+	Index discussion of "accepting state".
+	Say deterministic rather than LALR(1).
+	(Bison Options): In --yacc entry, say deterministic rather than
+	LALR(1).
+	In --report, --graph, and --xml entries, just don't mention
+	LALR(1).
+	(C++ Parsers): Say deterministic rather than LALR(1).
+	(Table of Symbols): Likewise in YYSTACK_USE_ALLOCA entry.
+	(Glossary): Add Accepting State, Consistent State, Default Rule,
+	and IELR(1) definitions.
+	In Generalized LR (GLR) definition, make same changes as in
+	previous GLR sections.
+	In LALR(1) definition, say Bison uses LALR(1) by default rather
+	than implying Bison is limited to LALR(1).
+	(LocalWords): Add IELR.
+
+2009-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Finish implementing %define lr.type.
+	Its value can be "LALR", "IELR", or "canonical LR".
+	* lib/timevar.def (TV_IELR_PHASE1): New var.
+	(TV_IELR_PHASE2): New var.
+	(TV_IELR_PHASE3): New var.
+	(TV_IELR_PHASE4): New var.
+	* src/Makefile.am (bison_SOURCES): Add AnnotationList.c,
+	AnnotationList.h, InadequacyList.c, InadequacyList.h, Sbitset.c,
+	Sbitset.h, ielr.h, and ielr.c.
+	* src/getargs.h, src/getargs.c (enum trace, trace_args,
+	trace_types): Add trace_ielr.
+	* src/lalr.h, src/lalr.c (ngotos): Export it.
+	(F): Rename to...
+	(goto_follows): ... this, update all uses, and export it.
+	(set_goto_map): Export it.
+	(map_goto): Export it.
+	(compute_lookahead_tokens): Don't free goto_follows yet.  Now
+	handled in ielr.
+	(initialize_LA): Export it.  Move lookback allocation to...
+	(lalr): ... here because, for canonical LR, initialize_LA must
+	be invoked but lookback and much of the rest of LALR isn't
+	needed.
+	* main.c (main): Instead of lalr, invoke ielr, which invokes
+	lalr.
+	* src/reader.c (reader): Default lr.type to "LALR".
+	Default lr.default_rules to "accepting" if lr.type is "canonical
+	LR".  Leave the default as "all" otherwise.
+	Check for a valid lr.type value.
+	* src/state.h, src/state.c (struct state_list): Add state_list
+	member.
+	(state_new): Initialize state_list member to NULL.
+	(state_new_isocore): New function, exported.
+	* tests/existing.at (AT_TEST_EXISTING_GRAMMAR): New macro that
+	exercises all values of lr.type.
+	(GNU AWK Grammar): Rename test group to...
+	(GNU AWK 3.1.0 Grammar): ... this, and extend to use
+	AT_TEST_EXISTING_GRAMMAR.
+	(GNU Cim Grammar): Extend to use AT_TEST_EXISTING_GRAMMAR.
+	(GNU pic Grammar): Rename test group to...
+	(GNU pic (Groff 1.18.1) Grammar): ... this, and extend to use
+	AT_TEST_EXISTING_GRAMMAR.
+	* tests/reduce.at (AT_TEST_LR_TYPE): New macro that exercises
+	all values of lr.type.
+	(Single State Split): New test groups using AT_TEST_LR_TYPE.
+	(Lane Split): Likewise.
+	(Complex Lane Split): Likewise.
+	(Split During Added Lookahead Propagation): Likewise.
+
+2009-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Add new files for IELR and canonical LR implementation.
+	* src/AnnotationList.c: New.
+	* src/AnnotationList.h: New.
+	* src/InadequacyList.c: New.
+	* src/InadequacyList.h: New.
+	* src/Sbitset.c: New.
+	* src/Sbitset.h: New.
+	* src/ielr.c: New.
+	* src/ielr.h: New.
+
+2009-04-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Implement %define lr.default_rules.
+	Its value describes the states that are permitted to contain
+	default rules: "all", "consistent", or "accepting".
+	* src/reader.c (reader): Default lr.default_rules to "all".
+	Check for a valid lr.default_rules value.
+	* src/lalr.c (state_lookahead_tokens_count): If lr.default_rules
+	is "accepting", then only mark the accepting state as
+	consistent.
+	(initialize_LA): Tell state_lookahead_tokens_count whether
+	lr.default_rules is "accepting".
+	* src/tables.c (action_row): If lr.default_rules is not "all",
+	then disable default rules in inconsistent states.
+	* src/print.c (print_reductions): Use this opportunity to
+	perform some assertions about whether lr.default_rules was
+	obeyed correctly.
+	* tests/local.at (AT_TEST_TABLES_AND_PARSE): New macro that
+	helps with checking the parser tables for a grammar.
+	* tests/input.at (%define lr.default_rules invalid values): New
+	test group.
+	* tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): New macro using
+	AT_TEST_TABLES_AND_PARSE.
+	(`no %define lr.default_rules'): New test group generated by
+	AT_TEST_LR_DEFAULT_RULES.
+	(`%define lr.default_rules "all"'): Likewise.
+	(`%define lr.default_rules "consistent"'): Likewise.
+	(`%define lr.default_rules "accepting"'): Likewise.
+
+2009-04-20  Akim Demaille  <demaille@gostai.com>
+
+	Formatting change.
+
+2009-04-20  Akim Demaille  <demaille@gostai.com>
+
+	bison: factoring.
+	* src/output.c (token_definitions_output): Use symbol_id_get
+	instead of duplicating its logic.
+	* TODO (YYERRCODE): Extend.
+
+2009-04-20  Akim Demaille  <demaille@gostai.com>
+
+	variables: prefer error-verbose to error_verbose.
+	* data/bison.m4 (b4_error_verbose_if): Based on error-verbose
+	instead of error_verbose.
+	* src/scan-gram.l (%error-verbose): Map to the error-verbose
+	variable.
+	* doc/bison.texinfo: Promote %define error-verbose instead of
+	%error-verbose.
+	* tests/actions.at: Prefer %define error-verbose to %error-verbose.
+
+2009-04-15  Akim Demaille  <demaille@gostai.com>
+
+	variables: accept dashes.
+	* data/bison.m4 (b4_percent_define_if_define_): Also map dashes to
+	underscores.
+	* src/scan-gram.l ({id}): Also accept dashes after the initial
+	letter.
+	({directive}): Use {id}.
+	* src/parse-gram.y: Comment and formatting changes.
+	* doc/bison.texinfo (Symbols): Adjust the lexical definitions of
+	symbols.
+	* src/complain.h, src/complain.c (yacc_at): New.
+	* src/symtab.c (symbol_new): Use yacc_at to report inappropriate
+	symbol names.
+	* src/output.c (token_definitions_output): Do not #define token
+	names with dashes.
+
+2009-04-20  Akim Demaille  <demaille@gostai.com>
+
+	Consistently refer to Yacc, not YACC.
+	* src/getargs.c (usage, warnings_args): s/YACC/Yacc/.
+
+2009-04-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Pacify make maintainer-check-posix.
+	* tests/input.at (%define, --define): Move bison command-line
+	options before grammar file name.
+
+2009-04-04  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Document semicolon warnings.
+	* NEWS (2.5): Here.
+
+2009-04-14  Akim Demaille  <demaille@gostai.com>
+
+	variables: use `parse.assert' instead of `assert'.
+	* TODO (assert): Remove.
+	* data/bison.m4 (b4_assert_if): Replace with...
+	(b4_parse_assert_if): this.
+	* data/lalr1.cc, data/variant.hh, tests/c++.at: Adjust.
+	* doc/bison.texinfo (Decl Summary): Document parse.assert.
+
+2009-04-14  Akim Demaille  <demaille@gostai.com>
+
+	variables: use `parse.trace' instead of `debug'.
+	* src/getargs.c (getargs): Map -t to %define trace.parse.
+	* src/scan-gram.l (%debug): Map to %define trace.parse.
+	* data/bison.m4 (b4_percent_define_if_define): Map `.' in variable
+	names to `_' in macro names.
+	(b4_debug_if): Replace with...
+	(b4_parse_trace_if): this.
+	* data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
+	* data/yacc.c: Adjust.
+	* doc/bison.texinfo (Decl Summary): Document %debug as obsoleted.
+	Use @code to label the variable list.
+	Document the variable parse.trace.
+	(Tracing): Promote the parse.trace variable.
+	* TODO: %printer is not documented.
+
+2009-04-14  Akim Demaille  <demaille@gostai.com>
+
+	doc: minor fixes.
+	* doc/bison.texinfo (Decl Summary): Fix entry about %debug.
+	(Table of Symbols): Remove duplicate entry for %debug.
+
+2009-04-10  Eric Blake  <ebb9@byu.net>
+
+	submodules: update to latest
+	* submodules/autoconf: Use latest upstream Autoconf.
+
+2009-04-06  Eric Blake  <ebb9@byu.net>
+
+	Work around autoconf 2.63b bug in testsuite.
+	* tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Avoid tripping
+	autoconf bug related to # in test.
+
+2009-04-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* NEWS (2.5): New section.  Describe new -D/--define feature.
+
+2009-04-06  Akim Demaille  <demaille@gostai.com>
+
+	Regen.
+	* src/parse-gram.h, src/parse-gram.c: Regen.
+
+2009-04-06  Akim Demaille  <demaille@gostai.com>
+
+	rename muscle_tab.* as muscle-tab.* for consistency.
+	* src/muscle_tab.h, src/muscle_tab.c: Rename as...
+	* src/muscle-tab.h, src/muscle-tab.c: these.
+	* src/getargs.c, src/local.mk, src/main.c, src/output.c,
+	* src/parse-gram.y, src/reader.c, src/scan-code.l: Adjust.
+
+2009-04-06  Akim Demaille  <demaille@gostai.com>
+
+	Makefile: introduce $(BISON).
+	* src/local.mk (BISON): New.
+	(YACC): Use it.
+
+2009-04-06  Akim Demaille  <demaille@gostai.com>
+
+	parser: handle %locations as %define locations.
+	* src/getargs.h, src/getargs.c (locations_flag): Remove.
+	* src/getargs.c, src/scan-code.l: Use muscle_percent_define_ensure
+	to set "locations" to true.
+	* src/output.c (prepare): Don't output "locations".
+	* src/scan-gram.l (%locations): Handle it as a %<flag>.
+	* src/parse-gram.y: It's no longer a token.
+	Don't handle it.
+	* data/bison.m4 (b4_locations_if): Define it with
+	b4_percent_define_if_define.
+	* data/c.m4, data/glr.cc: Adjust.
+
+2009-04-06  Akim Demaille  <demaille@gostai.com>
+
+	Regen.
+	* src/parse-gram.c: Regen.
+
+2009-04-06  Akim Demaille  <demaille@gostai.com>
+
+	muscle: factor the handling of obsolete of obsolete directives.
+	Suggested by Joel E. Denny.
+
+	* src/muscle_tab.h, src/muscle_tab.c (muscle_percent_define_ensure):
+	New, extracted from...
+	* src/parse-gram.y (prologue_declaration: pure-parser): here.
+	Remove it.
+	(prologue_declaration: "%<flag>"): Use
+	muscle_percent_define_ensure.
+	(%error-verbose, %pure-parser): No longer tokens.
+	* src/scan-gram.l (pure-parser): Return as a %<flag>.
+
+2009-04-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Fix options documentation.
+	* build-aux/cross-options.pl: As in --help output, write optional
+	arguments as [=ARG] not =[ARG].
+	* doc/bison.texinfo (Bison Options): Add -W/--warnings argument.
+
+2009-04-04  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Replace BISON_PROG_GNU_M4 with Autoconf's AC_PROG_GNU_M4.
+	If the first m4 in $PATH is wrong, it keeps looking.  Moreover, its
+	requirements for a correct m4 are stricter.
+	* m4/m4.m4: Make it a symbolic link to submodules/autoconf/m4/m4.m4.
+	* configure.ac: Update to use AC_PROG_GNU_M4.
+	Reported by Eric Blake.
+
+2009-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Help with updating web manual.
+	* HACKING: Incorporate instructions from gnulib/doc/README.
+	* bootstrap.conf (gnulib_modules): Add gendocs.
+
+2009-04-03  Akim Demaille  <demaille@gostai.com>
+
+	Regen.
+	* src/parse-gram.h, src/parse-gram.c: Regen.
+
+2009-04-03  Akim Demaille  <demaille@gostai.com>
+
+	Factor %FLAG at scan level.
+	* src/parse-gram.y (PERCENT_DEBUG, PERCENT_ERROR_VERBOSE): Token
+	definitions and associated rules, replaced by....
+	(PERCENT_FLAG): this new token type, and rule.
+	* src/scan-gram.l (RETURN_PERCENT_FLAG): New.
+	Use it for %debug and %error-verbose.
+
+2009-04-03  Akim Demaille  <demaille@gostai.com>
+
+	Regen.
+	* src/parse-gram.h, src/parse-gram.c: Regen.
+
+2009-04-03  Akim Demaille  <demaille@gostai.com>
+
+	Treat %debug as %define debug.
+	* data/bison.m4 (b4_debug_if): New.
+	* data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c,
+	* data/lalr1.java: Use it instead of b4_debug_flag.
+	* src/getargs.h, src/getargs.c (debug_flag): Remove.
+	* src/output.c (prepare): Don't output it.
+	* src/parse-gram.y: Treat %debug as %define debug.
+
+2009-04-03  Akim Demaille  <demaille@gostai.com>
+
+	Treat %error-verbose as %define error_verbose.
+	This allows to pass -Derror_verbose on the command line.  Better
+	yet, it allows to pass -Derror_verbose=$(ERROR_VERBOSE), with
+	ERROR_VERBOSE being defined as false or true.
+	* data/bison.m4 (b4_percent_define_if_define): Instead of relying
+	on b4_percent_define_ifdef, for does not check the defined value,
+	but only whether the symbol is defined, rely on
+	b4_percent_define_flag_if, so that a value of "false" is processed
+	as a false.
+	If not defined, define the flag to "false".
+	(b4_error_verbose_if): New.
+	* data/glr.c, data/lalr1.cc, data/yacc.c: Use it instead of
+	b4_error_verbose_flag.
+	* src/getargs.h, src/getargs.c (error_verbose_flag): Remove.
+	* src/output.c (prepare): Don't output it.
+	* src/parse-gram.y (%error-verbose): Treat as %define error_verbose.
+
+2009-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Fix strange %define locations for default values.
+	Reported by Akim Demaille at
+	<http://lists.gnu.org/archive/html/bug-bison/2007-12/msg00001.html>
+	and discussed again starting at
+	<http://lists.gnu.org/archive/html/bison-patches/2008-11/msg00102.html>.
+	* data/bison.m4 (b4_percent_define_default): Leave syncline blank
+	because location information is bogus.
+	Use angle brackets to delimit fake file name because square brackets
+	look like underexpanded m4.  Choose a better fake file name.
+	Use negative line numbers.
+	* src/muscle_tab.c (muscle_percent_define_default): Likewise.
+	* src/location.c (location_print): If line for a boundary is negative,
+	only print that boundary's file name.
+	* src/location.h: Document that.
+	* tests/skeletons.at (%define Boolean variables: invalid skeleton
+	defaults): Update output.
+
+2009-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Pacify ./configure --enable-gcc-warnings.
+	* Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS) because many files
+	in lib won't compile with it.
+	* src/local.mk (src_bison_CFLAGS): Use $(WERROR_CFLAGS) here only.
+
+2009-03-31  Akim Demaille  <demaille@gostai.com>
+
+	bootstrap: --help to stdout.
+	* bootstrap (usage): Don't send --help to stderr.
+	Use a here doc instead of a long string.
+
+2009-03-31  Akim Demaille  <demaille@gostai.com>
+
+	bootstrap: README-hacking no longer exists
+	* bootstrap (checkout_only_file): Set to HACKING.
+
+2009-03-26  Akim Demaille  <demaille@gostai.com>
+
+	doc: merge HACKING and README-hacking.
+	Two files is confusing.
+	Reported by Alexandre Duret-Lutz.
+
+	* README-hacking: Merge into...
+	* HACKING (Working from the repository): here.
+
+2009-03-26  Akim Demaille  <demaille@gostai.com>
+
+	doc: update README-hacking.
+	* README-hacking: We now use git and git submodules.
+	Reported by Ralf Wildenhues and Alexandre Duret-Lutz.
+
+2009-03-26  Akim Demaille  <demaille@gostai.com>
+
+	lalr1.cc: avoid GCC 4.3 warnings.
+	GCC 4.3 now warns about "a || b && c" and asks for explicit
+	parentheses.
+	Reported by Alexandre Duret-Lutz.
+	* data/location.cc: Update copyright years.
+	(Position::operator==): Use parens to make precedence explicit.
+	Compare lines and columns first, as they are more likely to be
+	different, and they are faster to compare.
+
+2009-03-26  Akim Demaille  <demaille@gostai.com>
+
+	gnulib: update.
+	* gnulib: Update to latest.
+	* src/local.mk (AM_CFLAGS): Move to...
+	* Makefile.am: here.
+	* etc/prefix-gnulib-mk (prefix_assignment): Also transform
+	AM_CFLAGS.
+
+2009-03-02  Akim Demaille  <demaille@gostai.com>
+
+	Comment changes.
+
+2009-03-02  Akim Demaille  <demaille@gostai.com>
+
+	Share b4_yytranslate_define.
+	* data/lalr1.cc (b4_yytranslate_define): Move to...
+	* data/c++.m4: here.
+
+2009-03-02  Akim Demaille  <demaille@gostai.com>
+
+	Use locations in the variant example.
+	Yes, this obfuscates the point of this example, variants only.
+	But glr.cc cannot work (yet?) without locations.  This change
+	makes it easier to use this example with glr.cc.
+
+	* examples/variant.yy (assert): %define it.
+	(locations): Request them.
+	(yylex): Bind the location to the stage.
+
+2009-03-02  Akim Demaille  <demaille@gostai.com>
+
+	Dub make_TOKEN as a public type interface.
+	* data/c++.m4 (b4_symbol_constructor_declare)
+	(b4_symbol_constructor_define): New empty stubs.
+	(b4_public_types_declare, b4_public_types_define): Use them.
+	* data/lalr1.cc (b4_symbol_constructor_declare)
+	(b4_symbol_constructor_declare_)
+	(b4_symbol_constructor_define_, b4_symbol_constructor_define):
+	Move to...
+	* data/variant.hh: here.
+	Remove the "b4_variant_if" parts, as variant.hh is loaded only if
+	needed.
+	* data/lalr1.cc: No longer invoke b4_symbol_constructor_define and
+	b4_symbol_constructor_declare, as it is now done by
+	b4_public_types_define and b4_public_types_declare.
+
+2009-03-02  Akim Demaille  <demaille@gostai.com>
+
+	Coding style changes.
+	* data/lalr1.cc (b4_symbol_constructor_declaration_)
+	(b4_symbol_constructor_declarations)
+	(b4_symbol_constructor_definition_)
+	(b4_symbol_constructor_definitions)
+	(b4_yytranslate_definition): Rename as...
+	(b4_symbol_constructor_declare_)
+	(b4_symbol_constructor_declare)
+	(b4_symbol_constructor_define_)
+	(b4_symbol_constructor_define)
+	(b4_yytranslate_define): these.
+	* data/variant.hh (b4_variant_definition): Rename as...
+	(b4_variant_define): this.
+
+2009-03-02  Akim Demaille  <demaille@gostai.com>
+
+	Factor b4_assert_if, b4_lex_symbol_if, and b4_variant_if.
+	* data/bison.m4 (b4_percent_define_if_define): New.
+	* data/c++.m4 (b4_variant_if): Move to...
+	* data/bison.m4: Here, using b4_percent_define_if_define.
+	* data/lalr1.cc (b4_assert_if, b4_lex_symbol_if): Move to...
+	* data/bison.m4: Here, using b4_percent_define_if_define.
+
+2009-03-02  Akim Demaille  <demaille@gostai.com>
+
+	Dub symbol_type_base as a public type.
+	* data/c++.m4 (b4_public_types_declare): Now define
+	symbol_type_base and symbol_type.
+	(b4_public_types_define): New.
+	In both cases, the definitions are taken verbatim from lalr1.cc.
+	* data/lalr1.cc: Adjust.
+
+2009-03-02  Akim Demaille  <demaille@gostai.com>
+
+	b4_public_types_declare.
+	* data/c++.m4 (b4_public_types_declare): New.
+	* data/glr.cc, data/lalr1.cc: Use it.
+
+2009-03-02  Akim Demaille  <demaille@gostai.com>
+
+	b4_semantic_type_declare.
+	* data/c++.m4 (b4_semantic_type_declare): New.
+	Factors and generalizes what was in glr.cc and lalr1.cc.
+	* data/variant.hh (b4_semantic_type_declare): Redefine it for
+	variants.
+	* data/lalr1.cc, data/glr.cc: Use it.
+
+2009-02-26  Akim Demaille  <demaille@gostai.com>
+
+	Upgrade gnulib.
+	* gnulib: Upgrade from master.
+	* lib/.cvsignore, lib/.gitignore, m4/.cvsignore, m4/.gitignore:
+	Regen.
+
+2009-02-25  Akim Demaille  <demaille@gostai.com>
+
+	Remove useless arguments.
+	* data/glr.c (yy_reduce_print): $$ and @$ are not used and not
+	relevant.
+
+2009-02-25  Akim Demaille  <demaille@gostai.com>
+
+	Comment changes.
+	* data/lalr1.cc: here.
+
+2009-02-25  Akim Demaille  <demaille@gostai.com>
+
+	Fix glr.cc's debug level handling.
+	* data/glr.cc (yydebug_): Remove, as it is actually yydebug from
+	glr.c which is used.
+	(debug_level, set_debug_level): Adjust.
+
+2009-02-25  Akim Demaille  <demaille@gostai.com>
+
+	Copyright years.
+	* data/glr.c: Add 2007 and 2008 here, consistenly with the comments.
+
+2009-02-25  Akim Demaille  <demaille@gostai.com>
+
+	Style changes.
+	* etc/bench.pl.in (generate_grammar_list): Consitently use
+	location_type, not yy::location.
+
+2009-02-25  Akim Demaille  <demaille@gostai.com>
+
+	Comment change.
+	* data/lalr1.cc: here.
+
+2009-02-19  Akim Demaille  <demaille@gostai.com>
+
+	Make yyparser::error public.
+	* data/lalr1.cc: here.
+	There is no good reason to keep it private (and it is convenient
+	to use it from the scanner for instance).  It is already public in
+	glr.cc.
+
+2009-02-19  Akim Demaille  <demaille@gostai.com>
+
+	Comment changes.
+	* data/glr.cc: here.
+
+2009-02-19  Akim Demaille  <demaille@gostai.com>
+
+	Remove trailing blanks.
+	The epilogue has its own ending \n, no need to add another.
+
+	* data/glr.c, data/lalr1.java, data/yacc.c: dnl when outputing the
+	epilogue.
+	* data/glr.cc: dnl when extending the epilogue.
+	Remove stray "private:".
+
+2009-02-19  Akim Demaille  <demaille@gostai.com>
+
+	Use b4_c_modern.
+	* data/c.m4 (b4_c_function_decl): Here.
+
+2009-02-19  Akim Demaille  <demaille@gostai.com>
+
+	Comment changes.
+	* data/lalr1.cc: here.
+
+2009-02-19  Akim Demaille  <demaille@gostai.com>
+
+	Extract variant.hh
+	* data/variant.hh: New, extracted from...
+	* data/lalr1.cc: here.
+	Adjust.
+	* data/local.mk: Adjust.
+
+2009-02-19  Akim Demaille  <demaille@gostai.com>
+
+	Extract stack.hh from lalr1.cc.
+	* data/stack.hh: New.
+	* data/lalr1.cc: Extract from here.
+	* data/local.mk: Adjust.
+
+2009-02-03  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Add reminder about uploading public key to keys.gnupg.net.
+	* HACKING (Release Procedure): Here.
+
+2009-01-28  Akim Demaille  <demaille@gostai.com>
+
+	* NEWS: Update information about 2.4.1 and 2.4.2.
+
+2008-11-04  Akim Demaille  <demaille@gostai.com>
+
+	Reformat NEWS.
+	* NEWS: Use more outline-mode markup.
+	Suggested by Jim Meyering.
+
+2009-01-08  Akim Demaille  <demaille@gostai.com>
+
+	Fix grep portability issues.
+	Grep on Solaris does not support -q.
+	Reported by Summum Bonum.
+
+	* NEWS: Add a stub for 2.4.2.
+	* THANKS: Add Summum Bonum.
+	* tests/atlocal.in (EGREP): New.
+	(CC, CXX, XSLTPROC): Make it possible to override them via
+	envvars.
+	* tests/java.at: Use $EGREP instead of egrep.
+	Use AT_CHECK's ignore instead of grep's -q.
+
+2008-12-11  Akim Demaille  <demaille@gostai.com>
+
+	Pass the token type to yysyntax_error.
+	* data/yacc.c (yysyntax_error): Take the transated token instead
+	of the raw number.
+	Adjust callers.
+	* TODO: Update.
+
+2008-12-11  Akim Demaille  <demaille@gostai.com>
+
+	Formatting changes.
+	* data/glr.c: Formatting changes.
+
+2008-12-11  Akim Demaille  <demaille@gostai.com>
+
+	Propagate i18n changes into glr.c.
+	* TODO: Update.
+	* data/glr.c (yyreportSyntaxError): Use "switch" instead of
+	building the error message format dynamically.
+	* data/lalr1.java: Formatting changes.
+
+2008-12-11  Akim Demaille  <demaille@gostai.com>
+
+	Use testsuite -C.
+	* tests/local.mk: Replace "cd && testsuite" by "testsuite -C".
+	Solves problems when top_srcdir is an absolute path.
+	Suggested by Eric Blake.
+	* configure.ac: Require Autoconf 2.62.
+
+2008-12-11  Akim Demaille  <demaille@gostai.com>
+
+	Simplify the i18n of the error messages.
+	* data/lalr1.cc: Comment changes.
+	* data/yacc.c (yysyntax_error): Rewrite, using a switch as in
+	lalr1.cc instead of building dynamically the format string.
+
+2008-12-08  Akim Demaille  <demaille@gostai.com>
+
+	Fix portability issue in the test suite.
+	* tests/local.at (AT_MATCHES_CHECK): New.
+	Based on Perl instead of Sed.  Sed has too many portability
+	pitfalls, not ever Sed is GNU Sed.
+	* tests/actions.at (Fix user actions without a trailing semicolon):
+	Use it.
+
+2008-12-08  Akim Demaille  <demaille@gostai.com>
+
+	Update data/README.
+	* data/README: Document glr.cc, lalr1.java, m4sugar and xslt.
+
+2008-12-08  Akim Demaille  <demaille@gostai.com>
+
+	Install autoconf as a submodule to get m4sugar.
+	* .gitmodules: Add submodules/autoconf.
+	* data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into
+	submodules/autoconf.
+
+2008-12-08  Akim Demaille  <demaille@gostai.com>
+
+	Test token.prefix in all the skeletons.
+	* data/java.m4 (b4_token_enum): Use the token.prefix.
+	* tests/local.at (AT_BISON_OPTION_PUSHDEFS): Define AT_TOKEN_PREFIX.
+	* tests/calc.at (_AT_DATA_CALC_Y): Use it.
+	Add checks for yacc.c, glr.c, lalr1.cc and glr.cc.
+	* tests/java.at: Comment changes.
+	(AT_CHECK_JAVA_MINIMAL): Define the END token.
+	(Java parser class and package names): Add token.prefix check.
+
+2008-12-08  Akim Demaille  <demaille@gostai.com>
+
+	Fix regeneration of atconfig.
+	* tests/local.mk (tests/atconfig): The rule was incorrect, but
+	remove it: now that there is no tests/Makefile.am, the top-level
+	Makefile properly updates atconfig when needed.
+
+2008-12-07  Di-an Jan  <dianj@freeshell.org>
+
+	Implement the FIXME that ends an user action with a semicolon
+	if it seems necessary.
+	* src/scan-code.l (flex rules section): Flag cpp directive from
+	any `#' to the first unescaped end-of-line.  Semicolon is not
+	needed after `;', `{', '}', or cpp directives and is needed after
+	any other token (whitespaces and comments have no effect).
+	* tests/actions.at (Fix user actions without a trailing semicolon):
+	New test.
+	* tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to
+	to make user actions complete statements.
+	Adjust column numbers in error messages.
+	* tests/regression.at (Fix user actions without a trailing semicolon):
+	Remove.  Covered by new test.
+
+2008-12-07  Akim Demaille  <demaille@gostai.com>
+
+	Update gnulib.
+	* gnulib: Update from master.
+
+2008-12-05  Eric Blake  <ebb9@byu.net>
+
+	Avoid compiler warning.
+	* src/output.c (muscle_insert_item_number_table): Delete unused
+	function.
+
+2008-12-02  Eric Blake  <ebb9@byu.net>
+
+	Build testsuite with newer autoconf.
+	* tests/output.at (m4_expand): Don't override in newer autoconf,
+	where the underlying implementation changed.
+	* tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT)
+	(_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT)
+	(_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
+	(_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings,
+	since some of them contain unbalanced ')'.
+
+2008-12-01  Akim Demaille  <demaille@gostai.com>
+
+	Use b4_symbol for printers and destructors everywhere.
+	* data/bison.m4 (b4_symbol_action_location): New.
+	* data/c.m4 (b4_symbol_actions): Remove.
+	Adjust all callers to use by b4_symbol_foreach and the corresponding
+	b4_symbol_printer/destructor macro.
+	* data/glr.cc: Adjust.
+	* data/lalr1.java: Adjust the %destructor sanity check.
+	* src/output.c (symbol_code_props_output): Remove, we no longer
+	need the b4_symbol_printers/destructors tables.
+
+2008-12-01  Akim Demaille  <demaille@gostai.com>
+
+	Use b4_symbol_case_.
+	* data/lalr1.cc, data/bison.m4 (b4_symbol_action): Use
+	b4_symbol_case_.
+
+2008-12-01  Akim Demaille  <demaille@gostai.com>
+
+	Move b4_symbol based macro to bison.m4.
+	* data/lalr1.cc (b4_symbol_, b4_symbol, b4_symbol_if)
+	(b4_symbol_action, b4_symbol_destructor, b4_symbol_printer)
+	(b4_symbol_case_, b4_symbol_foreach, b4_type_action_)
+	(b4_type_foreach): Move to...
+	* data/bison.m4: Here.
+	* data/lalr1.cc (b4_symbol_action): Specialize for C++: use
+	b4_symbol_value_template instead of b4_symbol_value.
+
+2008-12-01  Akim Demaille  <demaille@gostai.com>
+
+	b4_symbol/type_foreach.
+	* data/lalr1.cc (b4_symbol_foreach, b4_type_foreach): New.
+	Use them.
+
+2008-12-01  Akim Demaille  <demaille@gostai.com>
+
+	Use the symbol properties to output the printer/destructor for lalr1.cc.
+	Instead of defining complex list of tuples to define various
+	properties of the symbols, we now prefer to define symbols as
+	"structs" in m4: using the symbol key (its number), and the
+	property name, b4_symbol gives it value.  Use this to handle
+	destructors and printers.
+
+	* src/output.c (CODE_PROP): New.
+	(prepare_symbol_definitions): Use it to define the printer and
+	destructor related attributes of the symbols.
+	* data/lalr1.cc (b4_symbol_actions): Rename as...
+	(b4_symbol_action): this.
+	Use b4_symbol instead of 6 arguments.
+	(b4_symbol_printer, b4_symbol_destructor): New.
+	Use them instead of b4_symbol_actions.
+
+2008-12-01  Akim Demaille  <demaille@gostai.com>
+
+	Avoid capturing variables too easily.
+	* src/muscle_tab.h (MUSCLE_INSERT_BOOL, MUSCLE_OBSTACK_SGROW): Use
+	v__ and p__ instead of v and p.
+
+2008-12-01  Akim Demaille  <demaille@gostai.com>
+
+	Remove spurious empty line before syncline.
+	* data/bison.m4 (b4_syncline): Don't output an empty line before
+	the output.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	Convert lib/Makefile.am into lib/local.mk.
+	The real problem is rather gnulib.mk, which itself is extracted
+	from a Makefile.am that gnulib expects to the "recursive".  The
+	tool prefix-gnulib-mk converts such a gnulib.mk to be
+	non-recursive.  Also, some AC_SUBST variables need to be adjusted.
+
+	* etc/prefix-gnulib-mk: New.
+	* bootstrap (slurp): Use it to convert further gnulib.mk.
+	No longer try to avoid re-creation of lib/gnulib.mk as the changes
+	are deeper.
+	* lib/Makefile.am: Rename as...
+	* lib/local.mk: this.
+	Adjust to be prefixed.
+	* Makefile.am, configure.ac: Adjust.
+	* src/local.mk (AM_CPPFLAGS): Extend it, don't define it.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	s/_FLAGS/FLAGS/.
+	* tests/local.mk (TESTSUITE_FLAGS, AUTOTEST_FLAGS): Rename as...
+	(TESTSUITEFLAGS, AUTOTESTFLAGS): these to compy with the GCS.
+	Reported by Eric Blake.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	Use b4_parser_tables_define in glr.cc.
+	* data/glr.c: Use b4_parser_tables_define instead of defining the
+	(deterministic integral) tables by hand.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	Use b4_parser_tables_define in Java.
+	* data/java.m4 (b4_typed_parser_table): Rename as...
+	(b4_typed_parser_table_define): this, for consistency.
+	Accept a comment as $4.
+	Move $2 into yy*_.
+	(b4_integral_parser_table): Rename as...
+	(b4_integral_parser_table_define): this.
+	* data/lalr1.java: Adjust all uses.
+	Use b4_parser_tables_define instead of generation by hand.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	Prepare the convergence bw C style and Java table generation.
+	* data/bison.m4 (b4_tables_map, b4_tables_declare)
+	(b4_tables_define): Rename as...
+	(b4_integral_parser_tables_map, b4_parser_tables_declare)
+	(b4_parser_tables_define): these.
+	* data/c.m4 (b4_table_define): Rename as...
+	(b4_integral_parser_table_define): this.
+	* data/lalr1.cc: Adjust.
+	(b4_table_define, b4_table_declare): Rename as...
+	(b4_integral_parser_table_define)
+	(b4_integral_parser_table_declare): these.
+	(yyrline_): Move the comment where it is actually used.
+	* data/yacc.c: Adjust.
+	(yyrline): Use b4_integral_parser_table_define.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	Regen.
+	* src/parse-gram.h, src/parse-gram.c: Regen.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	Factor the generation of the (integral) tables bw yacc.c and lalr1.cc.
+	* data/lalr1.cc (b4_tables_map): Move to...
+	* data/bison.m4: here.
+	Update the comment for yytable during the flight.
+	(b4_tables_declare, b4_tables_define): New.
+	* data/lalr1.cc: Use them.
+	* data/c.m4 (b4_table_define): New.
+	* data/yacc.c: Use b4_tables_define instead of output the tables
+	by hand.
+	* tests/regression.at (Web2c Actions): Adjust the expected output,
+	the order of the tables changed.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	Get rid of (yy)rhs and (yy)prhs.
+	These tables are no longer needed in the parsers, and they don't seem to
+	be useful.  They are not documented either.
+
+	* src/output.c (prepare_rules): Get rid of rhs and prhs.
+	Adjust the computation of (yy)r2.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	Rule length is unsigned.
+	* src/gram.h, src/gram.c (rule_rhs_length): Return a size_t.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	Get rid of lalr1-split.cc.
+	It was no longer maintainer.
+
+	* data/lalr1-split.cc: Remove.
+	* etc/bench.pl.in (bench_fusion_parser): Remove.
+	Adjust.
+
+2008-11-26  Akim Demaille  <demaille@gostai.com>
+
+	Use yy* consistently.
+	* data/glr.c: Now that yyrhs no longer exists as a global
+	variable, rename local "rhs" variables into "yyrhs" for
+	consistency.
+
+2008-11-25  Akim Demaille  <demaille@gostai.com>
+
+	Get rid of yyrhs and yyprhs in glr.c.
+	* data/glr.c (yyrhs, yyprhs): Remove.
+	Instead, use the state stack and yystos.
+
+2008-11-25  Akim Demaille  <demaille@gostai.com>
+
+	Flag glr tests.
+	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): If glr, declare it
+	as an Autotest keyword.
+
+2008-11-25  Akim Demaille  <demaille@gostai.com>
+
+	Prefer TESTSUITE_FLAGS.
+	TESTSUITEFLAGS is barely readable.
+
+	* tests/local.mk (TESTSUITE_FLAGS): Default to $(TESTSUITEFLAGS)
+	for backward compatibility.
+	Use the former instead of the latter.
+
+2008-11-25  Akim Demaille  <demaille@gostai.com>
+
+	Get rid of yyrhs and yyprhs in larl1.java.
+	* data/lalr1.java (yyrhs_, yyprhs_): Remove.
+	(yy_reduce_print): Rather, use yystos_ and the state stack.
+
+2008-11-25  Akim Demaille  <demaille@gostai.com>
+
+	Formatting changes.
+
+2008-11-25  Akim Demaille  <demaille@gostai.com>
+
+	Get rid of yyrhs and yyprhs in yacc.c.
+	They were used to get the symbol types, given a rule number, when
+	displaying the top of the stack before a reduction.  But the
+	symbol type is available from the state stack.  This has two be
+	benefits: two tables less in the parser (making it smaller), and a
+	more consistent use of the three stacks which will help to fuse
+	them.
+
+	* data/yacc.c (yyprhs, yyrhs): Remove.
+	(YY_REDUCE_PRINT): Pass yyssp to yy_reduce_print.
+	(yy_reduce_print): Take yyssp as argument.
+	Use it, together with yystos, to get the symbol type.
+	* tests/regression.at (Web2c Report): Remove these tables from the
+	expected output.
+
+2008-11-25  Akim Demaille  <demaille@gostai.com>
+
+	b4_tables_map.
+	The point is to factor the generation of the tables across skeletons.
+	This is language dependant.
+
+	* data/c.m4 (b4_comment_): New.
+	Should be usable to define how to generate tables independently of
+	the language.
+	(b4_c_comment): New.
+	(b4_comment): Bounce to b4_c_comment.
+	Now support $2 = [PREFIX] for indentation.
+	* data/lalr1.cc (b4_table_declare): Don't output a comment if
+	there is no comment.
+	Indent it properly when there is one.
+	Output the ending semicolon.
+	(b4_table_define): Space changes.
+	Output the ending semicolon.
+	(b4_tables_map): New.
+	Use it twice instead of declaring and defining the (integral)
+	tables by hand.
+
+2008-11-25  Akim Demaille  <demaille@gostai.com>
+
+	b4_table_declare.
+	* data/lalr1.cc (b4_table_declare): New.
+	Use it to declare the tables defined with b4_table_define.
+	(b4_table_define): Declare a third arg to match b4_table_declare
+	signature.
+	Move all the comments around invocations of b4_table_define into
+	the invocations itselves.
+	Move things around to have the order for declarations and
+	definitions.
+
+2008-11-25  Akim Demaille  <demaille@gostai.com>
+
+	Formatting changes.
+	* data/lalr1.java: here.
+
+2008-11-25  Akim Demaille  <demaille@gostai.com>
+
+	b4_args is more general than only C++.
+	* data/lalr1.cc (b4_args, _b4_args): Move to...
+	* data/bison.m4: here.
+
+2008-11-21  Di-an Jan  <dianj@freeshell.org>
+
+	Implement no-XXX arguments for --warnings, --report, --trace.
+	* src/getargs.c (flags_argmatch): Handles no-XXX.
+	Fix typo in doxygen comment.
+
+2008-11-21  Akim Demaille  <demaille@gostai.com>
+
+	Display the changes in cross-options.texi.
+	* build-aux/cross-options.pl ($sep): New, to separate items.
+	* doc/local.mk ($(CROSS_OPTIONS_TEXI)): Use diff to display the
+	changes.
+
+2008-11-20  Di-an Jan  <dianj@freeshell.org>
+
+	Improves options in the manual.
+	* doc/bison.texinfo (-g, -x): Add space before argument.
+	(Option Cross Key): Implement FIXME: listing directives also.
+	* build-aux/cross-options.pl:  Read from <STDIN> rather than <>.
+	(Short Option): Special case -d.  Put arguments inside @option.
+	(Bison Directive): Add column, automatically extracted from
+	src/scan-gram.l (actual name passed as the first argument)
+	with special case for %define.
+	* doc/local.mk (doc/cross-options.texi): Pass src/scan-gram.l
+	to build-aux/cross-options.pl.
+	* src/getargs.c (usage): Document limitations of cross-options.pl.
+	* src/scan-gram.l: Likewise.
+
+2008-11-18  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Fix unexpanded macros in GLR defines file.
+	Reported by Csaba Raduly at
+	<http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00048.html>.
+	* THANKS (Csaba Raduly): Add.
+	* data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc.
+	* tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate
+	lexer in a separate module that includes the defines file.
+	(AT_CHECK_CALC): From AT_FULL_COMPILE, request compilation of lexer
+	source.
+	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF.
+	Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX.
+	(AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF.
+	(AT_DATA_SOURCE_PROLOGUE): New.
+	(AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE.
+	(AT_DATA_SOURCE): New.
+	(AT_FULL_COMPILE): Extend to support an additional source file.
+
 2008-11-18  Akim Demaille  <demaille@gostai.com>
 
 	More TODO.
@@ -1747,9 +3574,9 @@
 2008-08-29  Akim Demaille  <demaille@gostai.com>
 
 	Clarify UPDATED use.
-        * doc/bison.texinfo: It refers to the last edition of this file,
+	* doc/bison.texinfo: It refers to the last edition of this file,
 	not to the release date of Bison.
-        Reported by Joel E. Denny.
+	Reported by Joel E. Denny.
 
 2008-08-29  Akim Demaille  <demaille@gostai.com>
 
@@ -1769,15 +3596,15 @@
 2008-08-27  Akim Demaille  <demaille@gostai.com>
 
 	Check yyerrok in calc.at.
-        * tests/calc.at (calc.y): Use yyerrok on "( error )".
-        (AT_CHECK_CALC): Add a check that ensures that yyerrok works as
-        expected.
+	* tests/calc.at (calc.y): Use yyerrok on "( error )".
+	(AT_CHECK_CALC): Add a check that ensures that yyerrok works as
+	expected.
 
 2008-08-27  Akim Demaille  <demaille@gostai.com>
 
 	Support yyerrok in lalr1.cc.
 	YYBACKUP is still to import back into lalr1.cc.
-        * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
+	* data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
 
 2008-08-26  Joel E. Denny  <jdenny@ces.clemson.edu>
 
@@ -22541,8 +24368,8 @@
 	-----
 
 	Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
-	1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
-	Free Software Foundation, Inc.
+	1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+	2008, 2009 Free Software Foundation, Inc.
 
 	Copying and distribution of this file, with or without
 	modification, are permitted provided the copyright notice and this