X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/ca98bf57582952c898808b61e32bc8e2b30bc4b0..20c1e2ad9841d06212465ce0b81c771d08c9ec51:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
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+++ b/ChangeLog
@@ -1,3 +1,1799 @@
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+	* src/tables.h, src/tables.c, src/output.c: Comment changes.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+	* data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
+	* data/c.m4: here.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (prepare): Use MUSCLE_INSERT_STRING.
+	* src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
+	`pair'.
+	(muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
+	`name' to...
+	* data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
+	(b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
+	These.
+
+2002-10-19  Paul Eggert  <eggert@twinsun.com>
+
+	Do not create a temporary file, as that involves security and
+	cleanup headaches.  Instead, use a pair of pipes.
+	Derived from a suggestion by Florian Krohm.
+	* lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
+	* lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
+	* configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
+	(BISON_PREREQ_SUBPIPE): Add.
+	* lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
+	Add subpipe.h, subpipe.c.
+	* m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4.  Add subpipe.m4.
+	* po/POTFILES.in: Add lib/subpipe.c.
+	* src/output.c: Include "subpipe.h".
+	(m4_invoke): Remove decl.
+	(scan_skel): New decl.
+	(output_skeleton): Use pipe rather than temporary file for m4 input.
+	Check that m4sugar.m4 is readable, to avoid deadlock.
+	Check for pipe I/O error.
+	* src/scan-skel.l (readpipe): Remove decl.
+	(scan_skel): New function, to be used in place of m4_invoke.
+	Read from stream rather than file.
+
+	* lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
+	float, as this generates a warning on Solaris 8 + GCC 3.2 with
+	--enable-gcc-warnings.  Instead, divide into 1.0 rather than 1;
+	this generates a more-accurate value anyway.
+
+	* lib/timevar.c (timervar_accumulate): Rename locals to
+	avoid confusion with similarly-named more-global.
+	* src/muscle_tab.c (muscle_pair_list_grow): Likewise.
+
+	* src/output.c (prepare): Use xstrdup to convert char const *
+	to char *, to avoid GCC warning.
+
+2002-10-19  Akim Demaille  <akim@epita.fr>
+
+	* tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
+	LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
+	Use them to have `calc.y' ready for %pure-parser.
+	* data/yacc.c (YYLEX): Pass a yylex return type to
+	b4_c_function_call.
+
+2002-10-19  Akim Demaille  <akim@epita.fr>
+
+	Prototype support of %lex-param and %parse-param.
+
+	* src/parse-gram.y: Add the definition of the %lex-param and
+	%parse-param tokens, plus their rules.
+	Drop the `_' version of %glr-parser.
+	Add the "," token.
+	* src/scan-gram.l (INITIAL): Scan them.
+	* src/muscle_tab.c: Comment changes.
+	(muscle_insert, muscle_find): Rename `pair' as `probe'.
+	* src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
+	(muscle_entry_s): The `value' member is no longer const.
+	Adjust all dependencies.
+	* src/muscle_tab.c (muscle_init): Adjust: use
+	MUSCLE_INSERT_STRING.
+	Initialize the obstack earlier.
+	* src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
+	(muscle_pair_list_grow): New.
+	* data/c.m4 (b4_c_function_call, b4_c_args): New.
+	* data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
+	* tests/calc.at: Use %locations, not --locations.
+	(AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
+
+2002-10-19  Akim Demaille  <akim@epita.fr>
+
+	* src/getargs.c (usage): Take status as argument and exit
+	accordingly.
+	Report the traditional `Try ... --help' message when status != 0.
+	(usage, version): Don't take a FILE * as arg, it is pointless.
+	(getargs): When there is an incorrect number of arguments, make it
+	an error, and report it GNUlically thanks to `usage ()'.
+
+2002-10-18  Paul Eggert  <eggert@twinsun.com>
+
+	* data/glr.c (yyreportParseError): Don't assume that sprintf
+	yields the length of the printed string, as this is not true
+	on SunOS 4.1.4.  Reported by Peter Klein.
+
+	* tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
+	* tests/conflicts.at (%nonassoc and eof): Likewise.
+	Fixes SunOS 4.1.4 test failure reported by Peter Klein.
+
+2002-10-17  Akim Demaille  <akim@epita.fr>
+
+	* src/getargs.h (trace_e): Add trace_scan, and trace_parse.
+	* src/getargs.c (trace_types, trace_args): Adjust.
+	* src/reader.c (grammar_current_rule_prec_set)
+	(grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
+	Standardize error messages.
+	And s/@prec/%prec/!
+	(reader): Use trace_flag to enable scanner/parser debugging,
+	instead of an adhoc scheme.
+	* src/scan-gram.l: Remove trailing debugging code.
+
+2002-10-16  Paul Eggert  <eggert@twinsun.com>
+
+	* src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
+	MUSCLE_TAB_H.
+
+	* NEWS: Officially drop support for building Bison with K&R C,
+	since it didn't work anyway and it's not worth worrying about.
+	* Makefile.maint (wget_files): Remove ansi2knr.c.
+	(ansi2knr.c-url_prefix): Remove.
+	* lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
+	* lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+	* src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+
+2002-10-15  Paul Eggert  <eggert@twinsun.com>
+
+	Stop using the "enum_" trick for K&R-style function definitions;
+	it confused me, and I was the author!  Instead, assume that people
+	who want to use K&R C compilers (when using these modules in GCC,
+	perhaps?) will run ansi2knr.
+
+	* lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
+	All uses of "enum_" changed to "enum ".
+	* lib/ebitset.c (enum_ebitset_find_mode): Likewise.
+	* lib/lbitset.c (enum_lbitset_find_mode): Likewise.
+
+	* lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
+	abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
+	abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
+	abitset_copy1, abitset_disjoint_p, abitset_empty_p,
+	abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
+	abitset_not, abitset_ones, abitset_or, abitset_or_and,
+	abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
+	abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
+	abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
+	Use function prototypes; this removes the need for declaring
+	static functions simply to provide their prototypes.
+	* lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
+	bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
+	bitset_count_, bitset_create, bitset_dump, bitset_first,
+	bitset_free, bitset_init, bitset_last, bitset_next,
+	bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
+	bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
+	bitset_print, bitset_release_memory, bitset_toggle_,
+	bitset_type_choose, bitset_type_get, bitset_type_name_get,
+	debug_bitset): Likewise.
+	* lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
+	* lib/bitset_stats.c (bitset_log_histogram_print,
+	bitset_percent_histogram_print, bitset_stats_and,
+	bitset_stats_and_cmp, bitset_stats_and_or,
+	bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
+	bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
+	bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
+	bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
+	bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
+	bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
+	bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
+	bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
+	bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
+	bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
+	bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
+	bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
+	bitset_stats_zero): Likewise.
+	* lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
+	bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
+	bitsetv_dump, debug_bitsetv): Likewise.
+	* lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
+	ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
+	ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
+	ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
+	ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
+	ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
+	ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
+	ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
+	ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
+	ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
+	ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
+	Likewise.
+	* lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
+	lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
+	lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
+	lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
+	lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
+	lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
+	lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
+	lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
+	lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
+	lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
+	lbitset_xor_cmp, lbitset_zero): Likewise.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+	Version 1.75.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+	* tests/Makefile.am (maintainer-check-posix): New.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+	* data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
+	member.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+	* src/tables.c (table_ninf_remap): base -> tab.
+	Reported by Matt Rosing.
+
+2002-10-14  Paul Eggert  <eggert@twinsun.com>
+
+	* tests/action.at, tests/calc.at, tests/conflicts.at,
+	tests/cxx-type.at, tests/headers.at, tests/input.at,
+	tests/regression.at, tests/synclines.at, tests/torture.at:
+	Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
+	so that the tests still work even if POSIXLY_CORRECT is set.
+	* doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
+
+	* data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
+	for portability to K&R hosts.  Fix typo: signed char is guaranteed
+	only to 127, not to 128.
+	* data/glr.c (yysigned_char): New type.
+	* data/yacc.c (yysigned_char): Likewise.
+	* tests/regression.at (Web2c Actions): signed char -> yysigned_char.
+
+2002-10-13  Paul Eggert  <eggert@twinsun.com>
+
+	* data/yacc.c (yyparse): Rewrite to avoid "comparison is always
+	true due to limited range of data type" warning from GCC.
+
+	* data/c.m4 (b4_token_defines): Protect against double-inclusion
+	by wrapping enum yytokentype's definition inside #ifndef
+	YYTOKENTYPE.  This undoes a bug I introduced on 2002-10-12.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	* data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
+	Un yy- yyrhs to avoid the name clash with the global YYRHS.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	* Makefile.maint: Update from Autoconf 2.54.
+	* m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	* src/print.c (print_state): Separate the list of solved conflicts
+	from the other items.
+	* tests/conflicts.at (Resolved SR Conflicts): Adjust.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	Let nondeterministic skeletons be usable with deterministic
+	tables.
+
+	With the patch, GAWK compiled by GCC without -O2 passes its test
+	suite using a GLR parser driven by LALR tables.  It fails with -O2
+	because `struct stat' gives two different answers on my machine:
+	88 (definition of an auto var) and later 96 (memset on this var).
+	Hence the stack is badly corrumpted.  The headers inclusion is to
+	blame: if I move the awk.h inclusion before GLR's system header
+	inclusion, the two struct stat have the same size.
+
+	* src/tables.c (pack_table): Always create conflict_table.
+	(token_actions): Always create conflict_list.
+	* data/glr.c (YYFLAG): Remove, unused.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	* configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
+	(O0FLAGS): New.
+	(VALGRIND, GXX): New.
+	* tests/atlocal.in (CFLAGS): Use O0FLAGS.
+	* tests/bison.in: Run $PREBISON a pre-command.
+	* tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
+	(maintainer-check-g++): New.
+	* Makefile.am (maintainer-check): New.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	* data/glr.c: Formatting changes.
+	Tweak some trace messages to match yacc.c's.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+	GLR parsers sometimes raise parse errors instead of performing the
+	default reduction.
+	Reported by Charles-Henry de Boysson.
+
+	* tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
+	check the length of the	traces when %glr.
+	(_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
+	GLR's traces.
+	(AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
+	Test GLR parsers.
+	* data/glr.c (YYLEFTMOST_STATE): Fix its value.
+	(yyltype): Remove the yy prefix from the member names.
+	(yytable): Complete its comment.
+	(yygetLRActions): Map error action number from YYTABLE from
+	YYTABLE_NINF to 0.
+	(yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
+	(which was a bug: it should have been YYTABEL_NINF, and yet it was
+	not satisfying as we could compare an YYACTION computed from
+	YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
+	only value for error actions.
+	(yyreportParseError): In verbose parse error messages, don't issue
+	`error' in the list of expected tokens.
+	* data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
+	next action to perform to match glr.c's decoding.
+	(yytable): Complete its comment.
+
+2002-10-13  Paul Eggert  <eggert@twinsun.com>
+
+	Fix problem reported by Henrik Grubbstroem in
+	<http://mail.gnu.org/pipermail/bug-bison/2002-October/001670.html>:
+	"nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
+	because the Bison parser reads the second action before reducing
+	the first one.
+	* src/scan-gram.l (rule_length): New static var.
+	Use it to keep track of the rule length in the scanner, since
+	we can't expect the parser to be in lock-step sync with the scanner.
+	(handle_action_dollar, handle_action_at): Use this var.
+	* tests/actions.at (Exotic Dollars): Test for the problem.
+
+2002-10-12  Paul Eggert  <eggert@twinsun.com>
+
+	* lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
+	* m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
+	Include <sys/time.h> when checking for clock_t and struct tms.
+	Use same include order as source.
+	This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
+	<http://mail.gnu.org/pipermail/bug-bison/2002-October/001674.html>.
+
+	* lib/timevar.c: Update copyright date and clarify comments.
+	(get_time) [IN_GCC]: Keep the GCC version for reference.
+
+	* lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
+	GCC version as of today, then merge Bison's changes.
+	Change "GCC" to "Bison" in copyright notice.  timevar.def's
+	author is Akim, so change that too.
+
+	* src/reader.c (grammar_current_rule_check):
+	Don't worry about the default action if $$ is untyped.
+	Prevents bogus warnings reported by Jim Gifford in
+	<http://mail.gnu.org/pipermail/bug-bison/2002-October/001673.html>.
+
+	* data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
+	* data/glr.c, data/lalr1.cc, data/yacc.c:
+	Output token definitions before the first part of user declarations.
+	Fixes compatibility problem reported by Jim Gifford for kbd in
+	<http://mail.gnu.org/pipermail/bug-bison/2002-October/001672.html>.
+
+2002-10-11  Paul Eggert  <eggert@twinsun.com>
+
+	* data/yacc.c (yyreport_parse_error): Remove, putting its body into...
+	(yyparse): here.  This undoes some of the 2002-07-25 change.
+	Compatibility problem reported by Ralf S. Engelschall with
+	OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
+
+2002-10-11  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at Characters Escapes): New.
+	* src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
+	characters.
+	Reported by Jan Nieuwenhuizen.
+
+2002-10-11  Akim Demaille  <akim@epita.fr>
+
+	* po/id.po: New.
+
+2002-10-10  Paul Eggert  <eggert@twinsun.com>
+
+	Portability fixes for bitsets; this also avoids several GCC
+	warnings.
+
+	* lib/abitset.c: Include <stddef.h>, for offsetof.
+	* lib/lbitset.c: Likewise.
+
+	* lib/abitset.c (abitset_bytes): Return a size that is aligned
+	properly for vectors of objects.  Do not assume that adding a
+	header size to a multiple of a word size yields a value that is
+	properly aligned for the whole union.
+	* lib/bitsetv.c (bitsetv_alloc): Likewise.
+
+	* lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
+	unique names for structures.
+	* lib/ebitset.c (ebitset_bytes): Likewise.
+	* lib/lbitset.c (lbitset_bytes): Likewise.
+
+	* lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
+	abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
+	abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
+	abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
+	abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
+	abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
+	abitset_or_and_cmp, abitset_copy): Supply prototype decls,
+	to improve the type-checking that GCC can do.
+	* lib/bitset.c (bitset_op4_cmp): Likewise.
+	* lib/bitset_stats.c (bitset_stats_count,
+	bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
+	bitset_stats_copy, bitset_stats_disjoint_p,
+	bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
+	bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
+	bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
+	bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
+	bitset_stats_and_or_cmp, bitset_stats_andn_or,
+	bitset_stats_andn_or_cmp, bitset_stats_or_and,
+	bitset_stats_or_and_cmp): Likewise.
+	* lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
+	lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
+	lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
+	lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
+
+	* lib/abitset.h: Include bitset.h, not bbitset.h.
+	* lib/ebitset.h: Likewise.
+	* lib/lbitset.h: Likewise.
+
+	* lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
+	All instances of parameters of type enum bitset_opts are now of
+	type enum_bitset_opts, to conform to the C Standard, and similarly
+	for enum_bitset_type.
+	* lib/ebitset.c (enum_ebitset_find_mode): Likewise.
+	* lib/lbitset.c (enum_lbitset_find_mode): Likewise.
+
+	Do not use "struct bitset_struct" to mean different things in
+	different modules.  Not only is this confusing, it violates
+	the C Standard, which requires that structure types in different
+	modules must be compatible if one is to be passed to the other.
+	* lib/bbitset.h (bitset): Now points to a union, not to a struct.
+	All instances of "struct bitset_struct *" replaced with "bitset".
+	* lib/bitset.h (struct bitset_struct): Remove, replacing with....
+	(union bitset_union, struct abitset_struct, struct ebitset_struct,
+	struct lbitset_struct, struct bitset_stats_struct): New types.
+	All uses of struct bitset_struct changed to union bitset_union,
+	etc.
+	* lib/abitset.c	(struct abitset_struct, abitset,
+	struct bitset_struct): Remove.
+	* lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
+	struct bitset_struct): Remove.
+	* lib/ebitset.c (struct ebitset_struct, ebitset, struct
+	bitset_struct): Remove.
+	* lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
+	Likewise.
+
+	Do not call a function of type T using a call that assumes the
+	function is of a different type U.  Standard C requires that a
+	function must be called with a type that is compatible with its
+	definition.
+	* lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
+	New decls.
+	* lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
+	New functions.
+	* lib/ebitset.c (PFV): Remove.
+	* lib/lbitset.c (PFV): Likewise.
+	* lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
+	ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
+	decls.
+	(ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
+	(ebitset_vtable): Use them.
+	* lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
+	lbitset_xor): New functions.
+	(lbitset_vtable): Use them.
+
+	* lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
+	Declare.
+
+	* lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
+	GCC warning.
+	* lib/lbitset.c (LBITSET_CURRENT1): Likewise.
+	Use offsetof, for simplicity.
+
+2002-10-06  Paul Eggert  <eggert@twinsun.com>
+
+	* lib/bitset.h (bitset_reset): Do not assume that bitset_word is
+	the same width as int.  This reapplies a hunk of the 2002-08-12 patch
+	<http://mail.gnu.org/pipermail/bison-patches/2002-August/001111.html>,
+	which was inadvertently undone by the 2002-09-30 patch.
+	* lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
+	the same width as int.
+
+2002-10-04  Paul Eggert  <eggert@twinsun.com>
+
+	Version 1.50.
+
+	* configure.ac (AC_INIT), NEWS: Increment version number.
+
+	* doc/bison.texinfo: Minor spelling, grammar, and white space
+	fixes.
+	(Symbols): Mention that any negative value returned from yylex
+	signifies end-of-input.  Warn about negative chars.  Mention
+	the portable Standard C character set.
+
+	The GNU coding standard says CFLAGS and YFLAGS are reserved
+	for the installer to set.
+	* lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
+	* src/Makefile.am (AM_CFLAGS): Likewise.
+	(AM_YFLAGS): Renamed from YFLAGS.
+
+	Fix some MAX and MIN problems.
+	* src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
+	* src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
+	* src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
+	* src/reader.c (reader): Use it.
+
+	* tests/regression.at (Braces parsing): Use grep, not fgrep, as
+	POSIX 1003.1-2001 has removed fgrep.
+
+2002-10-04  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
+
+	* lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
+	interpreted as signed.
+	* lib/ebitset.c (ebitset_list): Fix bug.
+
+2002-10-01  Paul Eggert  <eggert@twinsun.com>
+
+	More fixes for 64-bit hosts and large bitsets.
+
+	* lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
+	abitset_size, abitset_list, abitset_list_reverse, abitset_list):
+	Use bitset_bindex, not int or unsigned int or size_t, to count bits.
+	* lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
+	struct bitset_vtable.list, struct bitset_vtable.list_reverse,
+	bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
+	bitset_count_): Likewise.
+	* lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
+	bitset_first, bitset_last): Likewise.
+	* lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
+	bitset_stats_list_reverse, bitset_stats_size,
+	bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
+	Likewise.
+	* lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+	* lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
+	bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
+	bitsetv_reflexive_transitive_closure): Likewise.
+	* lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
+	* lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
+	Likewise.
+	* lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
+	Likewise.
+
+	* lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
+	Use size_t, not unsigned int, to count bytes.
+	* lib/abitset.h (abitset_bytes): Likewise.
+	* lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
+	Likewise.
+	* lib/bitset.h (bitset_bytes): Likewise.
+	* lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
+	* lib/bitset_stats.h (bitset_stats_bytes): Likewise.
+	* lib/bitsetv.c (bitsetv_alloc): Likewise.
+	* lib/ebitset.c (ebitset_bytes): Likewise.
+	* lib/ebitset.h (ebitset_bytes): Likewise.
+	* lib/lbitset.c (lbitset_bytes): Likewise.
+	* lib/lbitset.h (lbitset_bytes): Likewise.
+
+	* lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
+	abitset_subset_p, abitset_disjoint_p, abitset_and,
+	abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
+	abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
+	abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
+	abitset_or_and, abitset_or_and_cmp):
+	Use bitset_windex instead of unsigned int.
+	* lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
+	* lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
+	ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
+	ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
+	Likewise.
+	* lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
+
+	* lib/bitset.c (bitset_print):
+	Use proper printf formats for widths of integer types.
+	* lib/bitset_stats.c (bitset_percent_histogram_print,
+	bitset_log_histogram_print, bitset_stats_print_1): Likewise.
+	* lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+	* lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
+	* lib/lbitset.c (lbitset_bytes): Likewise.
+
+	* lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
+	BITSET_SIZE_MAX): New macros.
+	(BITSET_INDEX_MAX): Remove.  It wasn't right, since it assumed that
+	sizeof (bitset_word) == sizeof (bitset_windex).  All uses changed
+	to BITSET_WINDEX_MAX.
+
+	* lib/bitset.c (bitset_next, bitset_prev, bitset_first,
+	bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
+	since we now return the bitset_bindex type (not int).
+
+	* lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
+	when computing sizes.
+	* lib/ebitset.c (ebitset_elts_grow): Likewise.
+
+	* lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
+	and avoid cast to unsigned.
+
+2002-09-30  Akim Demaille  <akim@epita.fr>
+
+	* lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
+	* lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
+	Updates from Michael Hayes.
+
+2002-09-30  Art Haas  <ahaas@neosoft.com>
+
+	* configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
+	invocations.
+	* tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
+	defined.
+
+2002-09-27  Akim Demaille  <akim@epita.fr>
+
+	Version 1.49c.
+
+2002-09-27  Akim Demaille  <akim@epita.fr>
+
+	* configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
+	(Because of AC_LIBSOURCE).
+
+2002-09-27  Akim Demaille  <akim@epita.fr>
+
+	Playing with Autoscan.
+
+	* configure.ac: Remove the old LIBOBJ tweaks.
+	(AC_REPLACE_FUNCS): Add strrchr and strtol.
+	* lib/strrchr.c: New.
+	* lib/strtol.c: New, from the Coreutils 4.5.1.
+
+2002-09-27  Akim Demaille  <akim@epita.fr>
+
+	Playing with Autoscan.
+
+	* m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
+	* lib/Makefile.am (libbison_a_SOURCES): No longer include
+	argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
+	* lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
+	Coreutils 4.5.1.
+
+2002-09-24  Akim Demaille  <akim@epita.fr>
+
+	* doc/bison.texinfo (Stack Overflow): xref to Recursion.
+	(Frequently Asked Questions, Parser Stack Overflow): New.
+
+2002-09-13  Akim Demaille  <akim@epita.fr>
+
+	Playing with autoscan.
+
+	* src/reader.c (get_merge_function): Use xstrdup, not strdup.
+	* src/files.c (skeleton_find): Remove, unused.
+	* m4/memcmp.m4: New, from the Coreutils 4.5.1.
+	* m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
+
+2002-09-13  Akim Demaille  <akim@epita.fr>
+
+	* configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
+	* Makefile.am (AUTOMAKE_OPTIONS): Don't.
+
+2002-09-13  Akim Demaille  <akim@epita.fr>
+
+	* configure.ac: Require 2.54.
+	s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
+	s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
+	* m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
+	Remove, provided by Autoconf macros.
+
+2002-09-12  Akim Demaille  <akim@epita.fr>
+
+	* m4/prereq.m4: Update, from Coreutils 4.5.1.
+
+2002-09-12  Akim Demaille  <akim@epita.fr>
+
+	* m4/prereq.m4: Update, from Fileutils 4.1.5.
+	* configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
+	Reported by Martin Mokrejs.
+
+2002-09-10  Akim Demaille  <akim@epita.fr>
+
+	* src/parse-gram.y: Associate a human readable string to each
+	token type.
+	* tests/regression.at (Invalid inputs): Adjust.
+
+2002-09-10  Gary V. Vaughan  <gary@gnu.org>
+
+	* tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
+	with an Autoconf-2.5x style configure.ac.
+
+2002-09-06  Paul Eggert  <eggert@twinsun.com>
+
+	* doc/bison.texinfo (Conditions): Make explicit that the GPL
+	exception applies only to yacc.c.  This is a modification of a
+	patch originally suggested by Akim Demaille.
+
+2002-09-06  Akim Demaille  <akim@epita.fr>
+
+	* data/c.m4 (b4_copyright): Move the GPL exception comment from
+	here to...
+	* data/yacc.c: here.
+
+	* data/lalr1.cc (struct yyltype): Don't define it, since we use
+	LocationType.
+	(b4_ltype): Default to yy::Location from location.hh.
+
+2002-09-04  Jim Meyering  <jim@meyering.net>
+
+	* data/yacc.c: Guard the declaration of yytoknum also with
+	`#ifdef YYPRINT', so it is declared only when used.
+
+2002-09-04  Akim Demaille  <akim@epita.fr>
+
+	* configure.in: Rename as...
+	* configure.ac: this.
+	Bump to 1.49c.
+
+2002-09-04  Akim Demaille  <akim@epita.fr>
+
+	* src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
+	* src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
+	translate maintainer only messages.
+
+2002-08-12  Paul Eggert  <eggert@twinsun.com>
+
+	Version 1.49b.
+
+	* Makefile.am (SUBDIRS): Remove intl.
+	(DISTCLEANFILES): Remove.
+	* NEWS: Mention that GNU M4 is now required.  Clarify what is
+	meant by "larger grammars".  Mention the pt_BR translation.
+	* configure.in (AC_CHECK_DECLS): Add getenv, getopt.
+	(AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
+	Bump version from 0.11.2 to 0.11.5.
+	(BISON_PREREQ_STAGE): Remove.
+	(AM_GNU_GETTEXT): Use external gettext.
+	(AC_OUTPUT): Remove intl/Makefile.
+
+	* config/depcomp, config/install-sh: Sync with Automake 1.6.3.
+
+	* data/glr.c: Include string.h, for strlen.
+	(yyreportParseError): Use size_t for yysize.
+	(yy_yypstack): No longer nested inside yypstates, as nested
+	functions are not portable.  Do not assume size_t is the
+	same width as int.
+	(yypstates): Do not assume that ptrdiff_t is the same width
+	as int, and similarly for yyposn and YYINDEX.
+
+	* data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
+
+	* lib/Makefile.am (INCLUDES): Do not include from the intl
+	directory, which has been removed.
+	* src/Makefile.am (INCLUDES): Likewise.
+
+	* lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
+	(bitsets_sources, additional_bitsets_sources, timevars_sources):
+	New vars.
+
+	* lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
+	* tests/Makefile.am (EXTRA_DIST): Likewise.
+
+	* lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
+	Do not assume that bitset_windex is the same width as unsigned.
+
+	* lib/abitset.c (abitset_unused_clear): Do not assume that
+	bitset_word is the same width as int.
+	* lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
+	* lib/bitset.h (bitset_set, bitset_reset): Likewise.
+	* lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
+	* lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
+	* lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
+
+	* lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
+	portability to one's complement hosts!).
+	* lib/ebitset.c (ebitset_op1): Likewise.
+	* lib/lbitset.c (lbitset_op1): Likewise.
+
+	* lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
+	* lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
+	lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
+	Sync with fileutils.
+	* lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
+	lib/gettext.h: Sync with diffutils.
+
+	* lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
+	lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
+
+	* lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
+	PROTOTYPES to check for prototypes, and "defined __STDC__" to
+	check for void *.
+
+	* lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
+	size_t; the old version tried to do this but casted improperly.
+	(bitset_bindex, bitset_windex): Now size_t, not unsigned long.
+	(bitset_test): Now returns int, not unsigned long.
+
+	* lib/bitset_stats.c: Include "gettext.h".
+	(_): New macro.
+	(bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
+	name locals "index", as it generates unnecessary warnings on some
+	hosts that have an "index" function.
+
+	* lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
+	bitset_stats_read, bitset_stats_write): Wrap strings in _() if
+	they need translation.
+	* src/LR0.c (state_list_append, new_itemsets, get_state,
+	append_states, generate_states): Likewise.
+	* src/assoc.c (assoc_to_string): Likewise.
+	* src/closure.c (print_closure, set_firsts, closure): Likewise.
+	* src/gram.c (grammar_dump): Likewise.
+	* src/injections.c (injections_compute): Likewise.
+	* src/lalr.c (lookaheads_print): Likewise.
+	* src/relation.c (relation_transpose): Likewise.
+	* src/scan-gram.l: Likewise.
+	* src/tables.c (table_grow, pack_vector): Likewise.
+
+	* m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
+	glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
+	* m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
+	* m4/mbstate_t.m4: Sync with fileutils.
+	* m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
+
+	* po/LINGUAS: Add pt_BR.
+	* po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
+	src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
+	lib/timevar.c.
+	Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
+	manual recommends.
+	Similarly, use src/scan-gram.l instead of src/scan-gram.c.
+
+	* src/complain.c (strerror_r): Remove decl; not needed.
+	(strerror): Use same pattern as ../lib/error.c.
+
+	* src/files.c, src/files.h (compute_header_macro): Remove; unused.
+
+	* src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
+
+	* src/main.c (main): Cast result of bindtextdomain and textdomain
+	to void, to avoid a GCC warning when --disable-nls is in effect.
+
+	* src/scan-gram.l: Use strings rather than escapes when possible,
+	to minimize the number of warnings from xgettext.
+	(handle_action_dollar, handle_action_at): Don't use isdigit,
+	as it mishandles negative chars and it may not work as expected
+	outside the C locale.
+
+	* src/symtab.c (symbol_get): Don't cast LHS of an assignment;
+	this is a GCC extension and is not portable to other compilers.
+
+	* src/system.h (alloca): Use same pattern as ../lib/error.c.
+	Do not include <ctype.h>; no longer needed.
+	Do not include <malloc.h>; no longer needed (and generates
+	warnings on OpenBSD 3.0).
+
+	* tests/cxx-type.at (yylex): Do not pass signed char to isupper;
+	it's not portable.
+
+	* tests/regression.at: Do not use 'cc -c input.c -o input';
+	Sun C rejects this.  Instead, use 'cc -c input.c -o input.o'.
+
+	* tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
+	exit status as failure, not just exit status 1.  Sun C exits
+	with status 2 sometimes.
+
+	* tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
+	Use it for the two large tests.
+
+2002-08-02  Akim Demaille  <akim@epita.fr>
+
+	* src/conflicts.c (conflicts_output): Don't output rules never
+	reduced here, since anyway that computation doesn't work.
+	* src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
+	(rule_useless_p, rule_never_reduced_p): New.
+	(grammar_rules_partial_print): Use a filter instead of a range.
+	Display the title only if needed.
+	(grammar_rules_print): Adjust.
+	(grammar_rules_never_reduced_report): New.
+	* src/tables.c (action_row): Move the computation of rules never
+	reduced to...
+	(token_actions): here.
+	* src/main.c (main): Make the parser before making the report, so
+	that rules never reduced are computed.
+	Call grammar_rules_never_reduced_report.
+	* src/print.c (print_results): Report rules never reduced.
+	* tests/conflicts.at, tests/reduce.at: Adjust.
+
+2002-08-01  Akim Demaille  <akim@epita.fr>
+
+	Instead of attaching lookaheads and duplicating the rules being
+	reduced by a state, attach the lookaheads to the reductions.
+
+	* src/state.h (state_t): Remove the `lookaheads',
+	`lookaheads_rule' member.
+	(reductions_t): Add a `lookaheads' member.
+	Use a regular array for the `rules'.
+	* src/state.c (reductions_new): Initialize the lookaheads member
+	to 0.
+	(state_rule_lookaheads_print): Adjust.
+	* src/state.h, src/state.c (state_reductions_find): New.
+	* src/conflicts.c (resolve_sr_conflict, set_conflicts)
+	(count_rr_conflicts): Adjust.
+	* src/lalr.c (LArule): Remove.
+	(add_lookback_edge): Adjust.
+	(state_lookaheads_count): New.
+	(states_lookaheads_initialize): Merge into...
+	(initialize_LA): this.
+	(lalr_free): Adjust.
+	* src/main.c (main): Don't free nullable and derives too early: it
+	is used by --verbose.
+	* src/print.c, src/print_graph.c, src/tables.c: Adjust.
+
+2002-08-01  Akim Demaille  <akim@epita.fr>
+
+	* src/derives.h, src/derives.c (derives): A `rule_t***' instead of
+	`rule_number_t**'.
+	(set_derives, free_derives): Rename as...
+	(derives_compute, derives_free): this.
+	Adjust all dependencies.
+	* src/nullable.c (set_nullable, free_nullable): Rename as...
+	(nullable_compute, nullable_free): these.
+	(rule_list_t): Store rule_t *, not rule_number_t.
+	* src/state.c (state_rule_lookaheads_print): Directly compare rule
+	pointers, instead of their numbers.
+	* src/main.c (main): Call nullable_free, and derives_free earlier,
+	as they were lo longer used.
+
+2002-08-01  Akim Demaille  <akim@epita.fr>
+
+	* lib/timevar.c (get_time): Include children time.
+	* src/lalr.h (LA, LArule): Don't export them: used with the
+	state_t.
+	* src/lalr.c (LA, LArule): Static.
+	* src/lalr.h, src/lalr.c (lalr_free): New.
+	* src/main.c (main): Call it.
+	* src/tables.c (pack_vector): Check whether loc is >= to the
+	table_size, not >.
+	(pack_tables): Don't free froms, tos, conflict_tos, and pos...
+	(tables_generate): do it, since that's also it which allocates
+	them.
+	Don't free LA and LArule, main does.
+
+2002-07-31  Akim Demaille  <akim@epita.fr>
+
+	Separate parser tables computation and output.
+
+	* src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
+	(conflict_list, conflict_list_cnt, table, check, table_ninf)
+	(yydefgoto, yydefact, high): Move to...
+	* src/tables.h, src/tables.c: here.
+	* src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+	(VECTOR_NUMBER_MIN, state_number_to_vector_number)
+	(symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
+	(froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
+	(ACTION_MIN, actrow, order, nentries, pos, conflrow)
+	(conflict_list_free, table_size, lowzero, table_grow, conflict_row)
+	(action_row, save_row, token_actions, save_column, default_goto)
+	(goto_actions, sort_actions, matching_state, pack_vector)
+	(table_ninf_remap, pack_table, prepare_actions): Move to...
+	* src/tables.c: here.
+	* src/tables.h, src/tables.c(tables_generate, tables_free): New.
+	* src/output.c (token_actions, output_base, output_conflicts)
+	(output_check): Merge into...
+	(prepare_actions): this.
+	(actions_output): Rename as...
+	(user_actions_output): this.
+	* src/main.c (main): Call tables_generate and tables_free.
+
+2002-07-31  Akim Demaille  <akim@epita.fr>
+
+	Steal GCC's --time-report support.
+
+	* lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
+	stolen/adjusted from GCC.
+	* m4/stage.m4: Remove time related checks.
+	* m4/timevar.m4: New.
+	* configure.in: Adjust.
+	* src/system.h: Adjust to using timevar.h.
+	* src/getargs.h, src/getargs.c: Support trace_time for
+	--trace=time.
+	* src/main.c (stage): Remove.
+	(main): Replace `stage' invocations with timevar calls.
+	* src/output.c: Insert pertinent timevar calls.
+
+2002-07-31  Akim Demaille  <akim@epita.fr>
+
+	Let --trace have arguments.
+
+	* src/getargs.h (enum trace_e): New.
+	* src/getargs.c (trace_args, trace_types, trace_argmatch): New.
+	(long_options, short_options): --trace/-T takes an optional
+	argument.
+	Change all the uses of trace_flag to reflect the new flags.
+	* tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
+
+	Strengthen `stage' portability.
+
+	* m4/stage.m4 (BISON_PREREQ_STAGE): New.
+	* configure.in: Use it.
+	Don't check for malloc.h and sys/times.h.
+	* src/system.h: Include them when appropriate.
+	* src/main.c (stage): Compile only when mallinfo, struct mallinfo,
+	times and struct tms are available.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+	In verbose parse error message, don't report `error' as an
+	expected token.
+	* tests/actions.at (Printers and Destructors): Adjust.
+	* tests/calc.at (Calculator $1): Adjust.
+	* data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
+	error message, do not report the parser accepts the error token in
+	that state.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+	Normalize conflict related messages.
+
+	* src/complain.h, src/complain.c (warn, complain): New.
+	* src/conflicts.c (conflicts_print): Use them.
+	(conflict_report_yacc): New, extracted from...
+	(conflicts_print): here.
+	* tests/conflicts.at, tests/existing.at: Adjust.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+	Report rules which are never reduced by the parser: those hidden
+	by conflicts.
+
+	* src/LR0.c (save_reductions): Don't make the final state too
+	different: save its reduction (accept) instead of having a state
+	without any action (no shift or goto, no reduce).
+	Note: the final state is now a ``regular'' state, i.e., the
+	parsers now contain `reduce 0' as default reduction.
+	Nevertheless, since they decide to `accept' when yystate =
+	final_state, they still will not reduce rule 0.
+	* src/print.c (print_actions, print_reduction): Adjust.
+	* src/output.c (action_row): Track reduced rules.
+	(token_actions): Report rules never reduced.
+	* tests/conflicts.at, tests/regression.at: Adjust.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+	`stage' was accidently included in a previous patch.
+	Initiate its autoconfiscation.
+
+	* configure.in: Look for malloc.h and sys/times.h.
+	* src/main.c (stage): Adjust.
+	Report only when trace_flag.
+
+2002-07-29  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
+	state_number_t.
+	(errs_t): symbol_t*, not symbol_number_t.
+	(reductions_t): rule_t*, not rule_number_t.
+	(FOR_EACH_SHIFT): New.
+	* src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
+	* src/print.c, src/print_graph.c: Adjust.
+
+2002-07-29  Akim Demaille  <akim@epita.fr>
+
+	Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
+
+	* src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
+	(endtoken, accept): these.
+	* src/reader.c (reader): Set endtoken's default tag to "$end".
+	Set undeftoken's tag to "$undefined" instead of "$undefined.".
+	* doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
+	Adjust.
+
+2002-07-29  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c (reduce_grammar): When the language is empty,
+	complain about the start symbol, not the axiom.
+	Use its location.
+	* tests/reduce.at (Empty Language): New.
+
+2002-07-26  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.h, src/reader.c (gram_error): ... can't get
+	yycontrol without making too strong assumptions on the parser
+	itself.
+	* src/output.c (prepare_tokens): Use the real 0th value of
+	token_translations instead of `0'.
+	* src/parse-gram.y (yyerror): Don't rely on yycontrol being
+	visible here.
+	* data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
+	for the time being: %locations ought to provide it to yyerror.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
+	* doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
+	* tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	Stop storing rules from 1 to nrules + 1.
+
+	* src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
+	* src/nullable.c, src/output.c, src/print.c, src/reader.c
+	* src/reduce.c: Allocate and free from &rules[0], not &rules[1].
+	Iterate from 0 to nrules.
+	Use rule_number_as_item_number and item_number_as_rule_number.
+	Adjust to `derive' now containing possibly 0.
+	* src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
+	Handle the `- 1' part in rule numbers from/to item numbers.
+	* src/conflicts.c (log_resolution): Fix the message which reversed
+	shift and reduce.
+	* src/output.c (action_row): Initialize default_rule to -1.
+	(token_actions): Adjust.
+	* tests/sets.at (Nullable, Firsts): Fix the previously bogus
+	expected output.
+	* tests/conflicts.at (Resolved SR Conflicts): Likewise.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	* data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
+	(b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
+	(b4_c_knr_arg_decl): New.
+	* data/yacc.c: Use it to define yysymprint, yydestruct, and
+	yyreport_parse_error.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	* data/yacc.c (yyreport_parse_error): New, extracted from...
+	(yyparse): here.
+	(yydestruct, yysymprint): Move above yyparse.
+	Be K&R compliant.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	* data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
+	replace...
+	(b4_sint_type, b4_uint_type): these.
+	* data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
+	* tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h (TIEM_NUMBER_MAX): New.
+	(item_number_of_rule_number, rule_number_of_item_number): Rename
+	as...
+	(rule_number_as_item_number, item_number_as_rule_number): these.
+	Adjust dependencies.
+	* src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+	(VECTOR_NUMBER_MIN, state_number_to_vector_number)
+	(symbol_number_to_vector_number): New.
+	(order): Of vector_number_t* type.
+	(base_t, BASE_MAX, BASE_MIN): New.
+	(froms, tos, width, pos, check): Of base_t type.
+	(action_number_t, ACTION_MIN, ACTION_MAX): New.
+	(actrow): Of action_number_t type.
+	(conflrow): Of unsigned int type.
+	(table_ninf, base_ninf): New.
+	(GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
+	(muscle_insert_int_table, muscle_insert_base_table)
+	(muscle_insert_rule_number_table): New.
+	(prepare_tokens): Output `toknum' as int_table.
+	(action_row): Returns a rule_number_t.
+	Use ACTION_MIN, not SHRT_MIN.
+	(token_actions): yydefact is rule_number_t*.
+	(table_ninf_remap): New.
+	(pack_table): Use it for `base' and `table'.
+	* data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
+	replaced with...
+	(YYPACT_NINF, YYTABLE_NINF): these.
+	(yypact, yytable): Compute their types instead of hard-coded
+	`short'.
+	* tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-19  Akim Demaille  <akim@epita.fr>
+
+	* src/scan-gram.l (id): Can start with an underscore.
+
+2002-07-16  Akim Demaille  <akim@epita.fr>
+
+	* src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
+	Adjust all former `associativity' dependencies.
+	* src/symtab.c (symbol_new): Default associativity is `undef', not
+	`right'.
+	(symbol_check_alias_consistence): Adjust.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* doc/bison.texinfo: Properly set the ``header'' part.
+	Use @dircategory ``GNU programming tools'' as per Texinfo's
+	documentation.
+	Use @copying.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* lib/quotearg.h: Protect against multiple inclusions.
+	* src/location.h (location_t): Add a `file' member.
+	(LOCATION_RESET, LOCATION_PRINT): Adjust.
+	* src/complain.c (warn_at, complain_at, fatal_at): Drop
+	`error_one_per_line' support.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* src/complain.h, src/complain.c (warn, complain): Remove, unused.
+	* src/reader.c (lineno): Remove.
+	Adjust all dependencies.
+	(get_merge_function): Take a location and use complain_at.
+	* src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
+	* tests/regression.at (Invalid inputs, Mixing %token styles):
+	Adjust.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* src/parse-gram.y (rules_or_grammar_declaration): Add an error
+	recovery rule, and forbid extensions when --yacc.
+	(gram_error): Use complain_at.
+	* src/reader.c (reader): Exit if there were parse errors.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* tests/synclines.at (AT_SYNCLINES_COMPILE): New.
+	(AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
+	Reported by R Blake <blakers@mac.com>.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+	* data/yacc.c: Output the copyright notive in the header.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (froms, tos): Are state_number_t.
+	(save_column): sp, sp1, and sp2 are state_number_t.
+	(prepare): Rename `final' as `final_state_number', `nnts' as
+	`nterms_number', `nrules' as `rules_number', `nstates' as
+	`states_number', and `ntokens' as `tokens_number'.  Remove `nsym',
+	unused.
+	* data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
+	* data/lalr1.cc (nsym_): Remove, unused.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.h, src/lalr.c (goto_number_t): New.
+	* src/lalr.c (goto_list_t): New.
+	Propagate them.
+	* src/nullable.c (rule_list_t): New.
+	Propagate.
+	* src/types.h: Remove.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (print_fderives): Use rule_rhs_print.
+	* src/derives.c (print_derives): Use rule_rhs_print.
+	(rule_list_t): New, replaces `shorts'.
+	(set_derives): Add comments.
+	* tests/sets.at (Nullable, Firsts): Adjust.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (prepare_actions): Free `tally' and `width'.
+	(prepare_actions): Allocate and free `order'.
+	* src/symtab.c (symbols_free): Free `symbols'.
+	* src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
+	* src/output.c (m4_invoke): Move to...
+	* src/scan-skel.l: here.
+	(<<EOF>>): Close yyout, and free its name.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+	Fix some memory leaks, and fix a bug: state 0 was examined twice.
+
+	* src/LR0.c (new_state): Merge into...
+	(state_list_append): this.
+	(new_states): Merge into...
+	(generate_states): here.
+	(set_states): Don't ensure a proper `errs' state member here, do it...
+	* src/conflicts.c (conflicts_solve): here.
+	* src/state.h, src/state.c: Comment changes.
+	(state_t): Rename member `shifts' as `transitions'.
+	Adjust all dependencies.
+	(errs_new): For consistency, also take the values as argument.
+	(errs_dup): Remove.
+	(state_errs_set): New.
+	(state_reductions_set, state_transitions_set): Assert that no
+	previous value was assigned.
+	(state_free): New.
+	(states_free): Use it.
+	* src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
+	temporary storage: use `errs' and `nerrs' as elsewhere.
+	(set_conflicts): Allocate and free this `errs'.
+
+2002-07-02  Akim Demaille  <akim@epita.fr>
+
+	* lib/libiberty.h: New.
+	* lib: Update the bitset implementation from upstream.
+	* src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
+	* src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
+	* src/main.c: Adjust bitset stats calls.
+
+2002-07-01  Paul Eggert  <eggert@twinsun.com>
+
+	* src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
+	char, so that negative chars don't collide with $.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	Have the GLR tests be `warning' checked, and fix the warnings.
+
+	* data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
+	(yyuserAction, yyreportAmbiguity): `Use' all the arguments.
+	(yyremoveDeletes): `yyi' and `yyj' are size_t.
+	Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
+	(yyaddDeferredAction): static.
+	(yyglrReduce): yyi, yyk, amd yyposn are size_t.
+	(yyreportParseError): yyprefix is const.
+	yytokenp is used only when verbose.
+	(yy__GNUC__): Replace with __GNUC__.
+	(yypdumpstack): yyi is size_t.
+	(yypreference): Un-yy local variables and arguments, to avoid
+	clashes with `yyr1'.  Anyway, we are not in the user name space.
+	(yytname_size): be an int, as is compared with ints.
+	* tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
+	Use them.
+	* tests/cxx-gram.at: Use quotation to protect $1.
+	Use AT_COMPILE to enable warnings hunts.
+	Prototype yylex and yyerror.
+	`Use' argc.
+	Include `string.h', not `strings.h'.
+	Produce and prototype stmtMerge only when used.
+	yylex takes a location.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	We spend a lot of time in quotearg, in particular when --verbose.
+
+	* src/symtab.c (symbol_get): Store a quoted version of the key.
+	(symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
+	Adjust all callers.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h (reductions_t): Rename member `nreds' as num.
+	(errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
+	* src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
+	(SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
+	(shifts_to): Rename as...
+	(transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
+	(TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
+	(TRANSITION_IS_DISABLED, transitions_to): these.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/print.c (print_shifts, print_gotos): Merge into...
+	(print_transitions): this.
+	(print_transitions, print_errs, print_reductions): Align the
+	lookaheads columns.
+	(print_core, print_transitions, print_errs, print_state,
+	print_grammar): Output empty lines separator before, not after.
+	(state_default_rule_compute): Rename as...
+	(state_default_rule): this.
+	* tests/conflicts.at (Defaulted Conflicted Reduction),
+	(Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
+	* tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	Display items as we display rules.
+
+	* src/gram.h, src/gram.c (rule_lhs_print): New.
+	* src/gram.c (grammar_rules_partial_print): Use it.
+	* src/print.c (print_core): Likewise.
+	* tests/conflicts.at (Defaulted Conflicted Reduction),
+	(Unresolved SR Conflicts): Adjust.
+	(Unresolved SR Conflicts): Adjust and rename as...
+	(Resolved SR Conflicts): this, as was meant.
+	* tests/regression.at (Web2c Report): Adjust.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/print.c (state_default_rule_compute): New, extracted from...
+	(print_reductions): here.
+	Pessimize, but clarify the code.
+	* tests/conflicts.at (Defaulted Conflicted Reduction): New.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (action_row): Let default_rule be always a rule
+	number.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (print_firsts, print_fderives, closure):
+	Use BITSET_EXECUTE.
+	* src/lalr.c (lookaheads_print): Likewise.
+	* src/state.c (state_rule_lookaheads_print): Likewise.
+	* src/print_graph.c (print_core): Likewise.
+	* src/print.c (print_reductions): Likewise.
+	* src/output.c (action_row): Likewise.
+	Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/print_graph.c: Use report_flag.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (traverse, digraph, matrix_print, transpose): Move
+	to...
+	* src/relation.h, src/relation.c (traverse, relation_digraph)
+	(relation_print, relation_transpose): New.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h, src/state.c (shifts_to): New.
+	* src/lalr.c (build_relations): Use it.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
+	(item_number_of_rule_number, rule_number_of_item_number): New.
+	* src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
+	* src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
+	* src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
+	Propagate their use.
+	Much remains to be done, in particular wrt `shorts' from types.h.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.c (symbol_new): Initialize the `printer' member.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (save_reductions): Remove, replaced by...
+	* src/state.h, src/state.c (state_reductions_set): New.
+	(reductions, errs): Rename as...
+	(reductions_t, errs_t): these.
+	Adjust all dependencies.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (state_list_t, state_list_append): New.
+	(first_state, last_state): Now symbol_list_t.
+	(this_state): Remove.
+	(new_itemsets, append_states, save_reductions): Take a state_t as
+	argument.
+	(set_states, generate_states): Adjust.
+	(save_shifts): Remove, replaced by...
+	* src/state.h, src/state.c (state_shifts_set): New.
+	(shifts): Rename as...
+	(shifts_t): this.
+	Adjust all dependencies.
+	* src/state.h (state_t): Remove the `next' member.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/vcg.c (quote): Use slot 2, since we often pass symbol tag
+	escaped in slot 0.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	Use hash.h for the state hash table.
+
+	* src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
+	(allocate_storage): Use state_hash_new.
+	(free_storage): Use state_hash_free.
+	(new_state, get_state): Adjust.
+	* src/lalr.h, src/lalr.c (states): Move to...
+	* src/states.h (state_t): Remove the `link' member, no longer
+	used.
+	* src/states.h, src/states.c: here.
+	(state_hash_new, state_hash_free, state_hash_lookup)
+	(state_hash_insert, states_free): New.
+	* src/states.c (state_table, state_compare, state_hash): New.
+	* src/output.c (output_actions): Do not free states now, since we
+	still need to know the final_state number in `prepare', called
+	afterwards.  Do it...
+	* src/main.c (main): here: call states_free after `output'.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h, src/state.c (state_new): New, extracted from...
+	* src/LR0.c (new_state): here.
+	* src/state.h (STATE_ALLOC): Move to...
+	* src/state.c: here.
+	* src/LR0.h, src/LR0.c (nstates, final_state): Move to...
+	* src/state.h, src/state.c: here.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (gensym): Rename as...
+	* src/symtab.h, src/symtab.c (dummy_symbol_get): this.
+	(getsym): Rename as...
+	(symbol_get): this.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	* src/state.h (state_number_t, STATE_NUMBER_MAX): New.
+	* src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
+	* src/output.c, src/print.c, src/print_graph.c: Propagate.
+	* src/LR0.h, src/LR0.h (final_state): Is a state_t*.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+	Make the test suite pass with warnings checked.
+
+	* tests/actions.at (Printers and Destructors): Improve.
+	Avoid unsigned vs. signed issues.
+	* tests/calc.at: Don't exercise the scanner here, do it...
+	* tests/input.at (Torturing the Scanner): here.
+
+2002-06-28  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* data/glr.c: Correct typo in Emacs-mode directive.  Slightly
+	reorganize first lines parallel to yacc.c.
+
+2002-06-28  Akim Demaille  <akim@epita.fr>
+
+	* data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
+	(b4_token_enum, b4_token_defines): New, factored from...
+	* data/lalr1.cc, data/yacc.c, glr.c: here.
+
+2002-06-28  Akim Demaille  <akim@epita.fr>
+
+	* data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
+	unused variables.
+	* src/output.c (merger_output): static.
+
+2002-06-28  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.h:	s/grammer_current_rule_merge_set/grammar_.../.
+	* src/conflicts.c (conflicts_total_count): `i' is unsigned, to
+	pacify GCC.
+	* src/output.c (save_row): Initialize all the variables to pacify GCC.
+
+2002-06-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	Accumulated changelog for new GLR parsing features.
+
+	* src/conflicts.c (count_total_conflicts): Change name to
+	conflicts_total_count.
+	* src/conflicts.h: Ditto.
+	* src/output.c (token_actions): Use the new name.
+	(output_conflicts): Change conflp => conflict_list_heads, and
+	confl => conflict_list for better readability.
+	* data/glr.c: Use the new names.
+	* NEWS: Add self to GLR announcement.
+
+	* src/reader.c (free_merger_functions): Cleanup: XFREE->free.
+
+	* doc/bison.texinfo (GLR Parsers): Make corrections suggested by
+	Akim Demaille.
+
+	* data/bison.glr: Change name to glr.c
+	* data/glr.c: Renamed from bison.glr.
+	* data/Makefile.am: Add glr.c
+
+	* src/getargs.c:
+
+	* src/symlist.h:  Add dprec and merger fields to symbol_list_s.
+	* src/symlist.c	(symbol_list_new): Initialize dprec and merger fields.
+
+	Originally 2002-06-16  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* data/bison.glr: Be sure to restore the
+	current #line when returning to the skeleton contents after having
+	exposed the input file's #line.
+
+	Originally 2002-06-13  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* data/bison.glr: Bring up to date with changes to bison.simple.
+
+	Originally 2002-06-03  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* data/bison.glr: Correct definitions that use b4_prefix.
+	Various reformatting.
+	(GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
+	(yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
+	yytokenp argument; now part of stack.
+	(yychar): Define to behave as documented.
+	(yyclearin): Ditto.
+
+	Originally 2002-05-14  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+	* src/reader.h: Add declaration for free_merger_functions.
+
+	* src/reader.c (merge_functions): New variable.
+	(get_merge_function): New function.
+	(free_merger_functions): New function.
+	(readgram): Check for %prec that is not followed by a symbol.
+	Handle %dprec and %merge declarations.
+	(packgram): Initialize dprec and merger fields in rules array.
+
+	* src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
+	conflict_list_cnt, conflict_list_free): New variables.
+	(table_grow): Also grow conflict_table.
+	(prepare_rules): Output dprec and merger tables.
+	(conflict_row): New function.
+	(action_row): Output conflict lists for GLR parser.  Don't use
+	default reduction in conflicted states for GLR parser so that there
+	are spaces for the conflict lists.
+	(save_row): Also save conflict information.
+	(token_actions): Allocate conflict list.
+	(merger_output): New function.
+	(pack_vector): Pack conflict table, too.
+	(output_conflicts): New function to output yyconflp and yyconfl.
+	(output_check): Allocate conflict_tos.
+	(output_actions): Output conflict tables, also.
+	(output_skeleton): Output b4_mergers definition.
+	(prepare): Output b4_max_rhs_length definition.
+	Use 'bison.glr' as default skeleton for GLR parsers.
+
+	* src/gram.c (glr_parser): New flag.
+	(grammar_free): Call free_merger_functions.
+
+	* src/conflicts.c (count_rr_conflicts): Augment to optionally count
+	all pairs of conflicting reductions, rather than just all tokens
+	causing conflicts.  Needed to size conflict tables.
+	(conflicts_output): Modify call to count_rr_conflicts for new
+	interface.
+	(conflicts_print): Ditto.
+	(count_total_conflicts): New function.
+
+	* src/reader.h (merger_list): New type.
+	(merge_functions): New variable.
+
+	* src/lex.h (tok_dprec, tok_merge): New token types.
+
+	* src/gram.h (rule_s): Add dprec and merger fields.
+	(glr_parser): New flag.
+
+	* src/conflicts.h (count_total_conflicts): New function.
+
+	* src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
+
+	* doc/bison.texinfo (Generalized LR Parsing): New section.
+	(GLR Parsers): New section.
+	(Language and Grammar): Mention GLR parsing.
+	(Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
+	Correct typo ("tge" -> "the").
+
+	* data/bison.glr: New skeleton for GLR parsing.
+
+	* tests/cxx-gram.at: New tests for GLR parsing.
+
+	* tests/testsuite.at: Include cxx-gram.at.
+
+	* tests/Makefile.am: Add cxx-gram.at.
+
+	* src/parse-gram.y:
+
+	* src/scan-gram.l: Add %dprec, %glr-parser, %merge.
+
+	* src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
+
+2002-06-27  Akim Demaille  <akim@epita.fr>
+
+	* src/options.h, src/options.c: Remove.
+	* src/getargs.c (short_options, long_options): New.
+
+2002-06-27  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple, data/bison.c++: Rename as...
+	* data/yacc.c, data/lalr1.cc: these.
+	* doc/bison.texinfo (Environment Variables): Remove.
+
+2002-06-25  Raja R Harinath  <harinath@cs.umn.edu>
+
+	* src/getargs.c (report_argmatch): Initialize strtok().
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (b4_symbol_actions): New, replaces...
+	(b4_symbol_destructor, b4_symbol_printer): these.
+	(yysymprint): Be sure to call YYPRINT only for tokens, and using
+	user token numbers.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (yydestructor): Rename as...
+	(yydestruct): this.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.h, src/symtab.c (symbol_type_set)
+	(symbol_destructor_set, symbol_precedence_set): The location is
+	the last argument.
+	Adjust all callers.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
+	internals.
+	* src/reader.h, src/reader.c (grammar_current_rule_prec_set):
+	Takes a location.
+	* src/symtab.h, src/symtab.c (symbol_class_set)
+	(symbol_user_token_number_set): Likewise.
+	Adjust all callers.
+	Promote complain_at.
+	* tests/input.at (Type Clashes): Adjust.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (YYLEX): Fix the declaration when
+	%pure-parser.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (yysymprint): Don't print the token number,
+	just its name.
+	* tests/actions.at (Destructors): Rename as...
+	(Printers and Destructors): this.
+	Also exercise %printer.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (YYDSYMPRINT): New.
+	Use it to remove many of the #if YYDEBUG/if (yydebug).
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.h, src/symtab.c (symbol_t): printer and
+	printer_location are new members.
+	(symbol_printer_set): New.
+	* src/parse-gram.y (PERCENT_PRINTER): New token.
+	Handle its associated rule.
+	* src/scan-gram.l: Adjust.
+	(handle_destructor_at, handle_destructor_dollar): Rename as...
+	(handle_symbol_code_at, handle_symbol_code_dollar): these.
+	* src/output.c (symbol_printers_output): New.
+	(output_skeleton): Call it.
+	* data/bison.simple (yysymprint): New.  Cannot be named yyprint
+	since there are already many grammar files with a user `yyprint'.
+	Replace the calls to YYPRINT to calls to yysymprint.
+	* tests/calc.at: Adjust.
+	* tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
+	taking advantage of parser very internal details (stack size!).
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* src/scan-gram.l: Complete the scanner with the missing patterns
+	to pacify Flex.
+	Use `quote' and `symbol_tag_get' where appropriate.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+	* tests/actions.at (Destructors): Augment to test locations.
+	* data/bison.simple (yydestructor): Pass it the current location
+	if locations are enabled.
+	Prototype only when __STDC__ or C++.
+	Change the argument names to move into the yy name space: there is
+	user code here.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (b4_pure_if): New.
+	Use it instead of #ifdef YYPURE.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (b4_location_if): New.
+	Use it instead of #ifdef YYLSP_NEEDED.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+	Prepare @$ in %destructor, but currently don't bind it in the
+	skeleton, as %location use is not cleaned up yet.
+
+	* src/scan-gram.l (handle_dollar, handle_destructor_at)
+	(handle_action_at): New.
+	(handle_at, handle_action_dollar, handle_destructor_dollar): Take
+	a braced_code_t and a location as additional arguments.
+	(handle_destructor_dollar): Instead of requiring `b4_eval', just
+	unquote one when outputting `b4_dollar_dollar'.
+	Adjust callers.
+	* data/bison.simple (b4_eval): Remove.
+	(b4_symbol_destructor): Adjust.
+	* tests/input.at (Invalid @n): Adjust.
+
+2002-06-19  Zack Weinberg  <zack@codesourcery.com>
+
+	* doc/bison.texinfo: Document ability to have multiple
+	prologue sections.
+
+2002-06-18  Akim Demaille  <akim@epita.fr>
+
+	* src/files.c (compute_base_names): When computing the output file
+	names from the input file name, strip the directory part.
+
 2002-06-18  Akim Demaille  <akim@epita.fr>
 
 	* data/bison.simple.new: Comment changes.
@@ -7157,19 +8953,19 @@
 
 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
 
-This file is part of GNU Autoconf.
+This file is part of GNU Bison.
 
-GNU Autoconf is free software; you can redistribute it and/or modify
+GNU Bison is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2, or (at your option)
 any later version.
 
-GNU Autoconf is distributed in the hope that it will be useful,
+GNU Bison 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 autoconf; see the file COPYING.  If not, write to
+along with GNU Bison; see the file COPYING.  If not, write to
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