X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/c66dfaddf449920bea03c0aa3b55467e2f21c98e..e4f0316ae096a728e62032fa33bc6c42cf4b6455:/ChangeLog?ds=sidebyside

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@@ -1,5 +1,672 @@
+2006-05-26  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* data/yacc.c (yy_reduce_print): Omit trailing white space in
+	generated source code.  Problem reported by Frans Englich in
+	<http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
+
+2006-05-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
+	shell, not within 'make', so that 'make' by an ordinary builder
+	(using GNU make) does not worry about configuring gzip.  This also
+	works around a bug reported independently by Keith Thompson and by
+	Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
+	stderr rather than stdout, messing up the build logs.
+
+2006-05-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
+	to make sure that YYID will never be unused.  This fixes a 'make
+	maintainer-check' failure caused by the recent changes to the 'Trivial
+	grammars' test case, which caused g++ 4.1.0 to complain that YYID was
+	not used.
+	* data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
+
+2006-05-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
+	state before an empty RHS is always resolved here.  Only the location
+	of that state is guaranteed to be resolved, and that's enough.  This
+	fixes the remaining bug reported by Derek M. Jones in
+	<http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
+	* tests/glr-regression.at (Uninitialized location when reporting
+	ambiguity): Test the above case.
+	Also, the embedded comments in this test case claim it checks the case
+	of an empty RHS that has inherited the initial location.  However, the
+	corresponding LHS was already resolved, so yyresolveLocations didn't
+	actually have reason to modify it.  Fix this by forcing
+	nondeterministic operation at the beginning of the parse.
+
+2006-05-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* data/c.m4 (b4_yy_symbol_print_generate):
+	(b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
+	'const YYSTYPE', and similarly for YYLTYPE.  This fixes one
+	of the bugs reported today by Derek M Jones in
+	<http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
+	* doc/bison.texinfo (Value Type): Document that YYSTYPE must be
+	defined to be a type name without parens or brackets.
+	(Location Type): Similarly for YYLTYPE.
+	* tests/regression.at (Trivial grammars): Put in a test for this
+	bug that will be caught by 'make maintainer-check' (though not,
+	alas, by 'make check' unless your compiler is picky).
+
+2006-05-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* NEWS: Version 2.2.
+	* configure.ac (AC_INIT): Likewise.
+
+2006-05-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* data/glr.c (yyreportTree): Make room in yystates for the state
+	preceding the RHS.  This fixes the segmentation fault reported by Derek
+	M. Jones in
+	<http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
+	(yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
+	to the user.  Reported for yyreportTree by Derek M. Jones later in the
+	same thread.
+	* THANKS: Add Derek M. Jones.
+	Update my email address.
+	Fix typo in Steve Murphy's name.
+
+2006-05-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* data/glr.c (yyreportSyntaxError): Fix off-by-one error in
+	checking against YYLAST that caused the parser to miss a potential
+	alternative in its diagnostic.
+	Problem reported by Maria Jose Moron Fernandez in
+	<http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
+	* data/lalr1.cc (yysyntax_error_): Likewise.
+	* data/yacc.c (yysyntax_error): Likewise.
+	* tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
+	tokens, in case we run into an older C compiler.
+	(_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
+	Use them to check for the off-by-one error fixed above.
+
+	* data/yacc.c (yytnamerr): Fix typo: local var should be of type
+	YYSIZE_T, not size_t.
+	* tests/regression.at (Trivial grammars): New test, to catch
+	the error fixed by the above patch.
+
+2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
+
+	* doc/bison.texinfo (C++ Bison Interface): Clarify the naming
+	scheme.
+	Reported by Steve Murphy.
+
+2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
+
+	* data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
+	* data/glr.cc: b4_location_flag is now b4_locations_flag.
+
+2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
+
+	Implement --trace=m4.
+	* src/getargs.c (trace_types, trace_args): Accept trace_m4.
+	* src/output.c (output_skeleton): When set, pass -dV to m4.
+
+	Factor the handling of flags in m4.
+	* src/output.c (prepare): Rename the muscle names debug, defines,
+	error_verbose to debug_flag, defines_flag, error_verbose_flag.
+	* data/c.m4: Adjust.
+	(_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
+	Use b4_define_flag_if to define other b4_FLAG_if macros.
+	(b4_location_if): As a consequence, rename as...
+	(b4_locations_if): this, for consistency.
+	Adjust all the skeletons.
+
+2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
+
+	* etc/bench.pm: Shorten bench names.
+
+2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
+
+	* src/output.h, src/output.c (error_verbose): Move to...
+	* src/getargs.h, src/getargs.c: here.
+	Sort the flags.
+	Adjust dependencies.
+
+2006-05-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* data/c.m4 (b4_copyright): Put the special exception for Bison
+	skeletons here, so we don't have to put it in each skeleton.  All
+	uses changed.  Suggested by Akim Demaille.  Also, wrap the
+	copyright notice, in case it is longer than 80 columns.  Replace
+	comma by newline after title.
+
+2006-05-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
+	incompatibility, not a bug.  Mention that it wasn't fixed as of
+	flex 2.5.33.
+
+2006-05-11  Akim Demaille  <akim@lrde.epita.fr>
+
+	* examples/extexi: Enforce the precedence of concatenation over
+	>>.
+	Reported by Tommy Nordgren.
+
+2006-05-11  Akim Demaille  <akim@lrde.epita.fr>
+
+	* data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
+	with the member "token".
+	Reported by Martin Nylin.
+
+2006-05-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* data/glr.c: Switch to Bison 2.2 special-exception language in
+	the copyright notice.  Use more-regular format for titles and
+	copyright notices.
+	* data/glr.cc: Likewise.
+	* data/location.cc: Likewise.
+	* data/yacc.cc: Likewise.
+	* doc/bison.texinfo (Conditions): Document this.
+	* NEWS: likewise.  Upgrade version to 2.2.
+
+2006-04-27  Akim Demaille  <akim@lrde.epita.fr>
+
+	* data/glr.cc: Remove dead code.
+
+2006-04-25  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
+	that variable and the line breaks the bootstrap.  Problem reported
+	by Juan M. Guerrero.
+
+2006-04-24  Akim Demaille  <akim@lrde.epita.fr>
+
+	* doc/bison.texinfo (Multiple start-symbols): New.
+
+2006-04-24  Akim Demaille  <akim@lrde.epita.fr>
+
+	* etc/README, etc/bench.pl: New.
+
+2006-04-03  Akim Demaille  <akim@lrde.epita.fr>
+
+	* src/scan-gram.l: Be robust to BRACED_CODE appearing before any
+	rule.
+	Reported by Mickael Labau.
+	* tests/input.at (Torturing the Scanner): Test it.
+
+2006-03-16  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
+	Problem reported by Bob Rossi.
+
+2006-03-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
+	and didn't really work.
+	For the index, use @ifnotinfo, not @iftex.
+	Minor cleanups of spacing and terminology.
+
+2006-03-12  Akim Demaille  <akim@lrde.epita.fr>
+
+	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
+	of AT_NAME_PREFIX when %name-prefix is not used.
+
+2006-03-12  Akim Demaille  <akim@lrde.epita.fr>
+
+	Apply --prefix to C++ skeletons too: they change the namespace.
+	The test suite already exercize these cases.
+	* data/c++.m4 (b4_namespace): New.
+	* data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
+	* data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
+	* data/yacc.c, data/glr.c: Remove a useless `[]'.
+	* doc/bison.texinfo: Document it.
+	(Option Cross Key): Use @multitable in all formats.  It looks
+	nicer, even in TeX outputs.
+	(Rules): Use the same code whatever the output type is.
+	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
+	(_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
+	* tests/calc.at: Use it, instead of hard coding `yy'.
+
+2006-03-10  Akim Demaille  <akim@lrde.epita.fr>
+
+	* TODO: Remove dead items.
+
+2006-03-10  Akim Demaille  <akim@lrde.epita.fr>
+
+	* doc/FAQ: Remove, merged into...
+	* doc/bison.texinfo (FAQ): this.
+	* doc/Makefile.am (EXTRA_DIST): Adjust.
+
+2006-03-10  Akim Demaille  <akim@lrde.epita.fr>
+
+	* data/c.m4 (b4_token_enum): Always define the enum of tokens,
+	even if empty.
+	* data/lalrl1.cc, data/glr.cc (parser::token_type): New.
+	* doc/bison.texinfo (Calc++ Scanner): Use it.
+
+2006-03-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+	Fix two nits reported by twlevo, plus one more that I discovered.
+
+	* src/assoc.h (assoc_to_string): Give a name to the arg, as
+	this is the usual Bison style.
+	* src/location.h (location_print): Likewise.
+
+	* src/reader.h (token_name): Likewise.
+
+2006-03-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+	Fix some nits reported by twlevo.
+	* doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
+	and "POSIX".  Use more-modern syntax for URLs.  Mention C++
+	and ask for Java.  Don't hardwire OS version numbers.  Add
+	copyright notice.
+	* m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
+	* src/conflicts.c (solved_conflicts_obstack): Now static.
+
+2006-03-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
+	page.  Say "you can use it" not "you may use it" as on the web page;
+	we're describing capabilities not granting permission.
+
+2006-03-06  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* data/glr.c (yyresolveLocations): Rename local variables to avoid
+	shadowing warnings.  Use usual patter for iterating through RHS.
+	* tests/glr-regression.at
+	(Uninitialized location when reporting ambiguity):
+	Modify yylex so that it uses its argument, rather than trying
+	to rely on ARGSUSED (which doesn't work for gcc with warnings).
+	const char -> char const.
+
+	* tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
+	Don't use tabs inside commands; it messes up 'ps'.
+	Problem reported by twlevo.
+
+2006-03-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* tests/glr-regression.at (Uninitialized location when reporting
+	ambiguity): New test case.
+	* data/glr.c (yyresolveLocations): New function, which uses
+	YYLLOC_DEFAULT.
+	(yyresolveValue): Invoke yyresolveLocations before reporting an
+	ambiguity.
+	* doc/bison.texinfo (Default Action for Locations): Note
+	YYLLOC_DEFAULT's usage for ambiguity locations.
+	(GLR Semantic Actions): Cross-reference those notes.
+
+2006-03-04  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* tests/glr-regression.at (Leaked semantic values when reporting
+	ambiguity): Remove unnecessary union and type declarations.
+	(Leaked lookahead after nondeterministic parse syntax error): New test
+	case.
+	* data/glr.c (yyparse): Check for zero stacks remaining before
+	attempting to shift the lookahead so that you don't lose it.
+
+2006-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
+	* tests/glr-regression.at (Leaked semantic values when reporting
+	ambiguity): New test case.
+	* data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
+	yyabort rather than invoking yyFail, which invokes longjmp.  Remove the
+	now unnecessary yystackp parameter.
+	(yyresolveValue): Return yyreportAmbiguity's result.  Now the necessary
+	destructors can be called.
+
+	* tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
+	in existing testcases.
+
+2006-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Don't leak semantic values for parent RHS when a user action cuts the
+	parser, and clean up related code a bit.
+	* tests/glr-regression.at (Leaked merged semantic value if user action
+	cuts parse): Rename to...
+	(Leaked semantic values if user action cuts parse): ... this.  Add check
+	for leaked parent RHS values.
+	* data/glr.c (yydestroyGLRState): In debugging output, distinguish
+	between an unresolved state (non-empty chain of semantic options) and
+	an incomplete one (signaled by an empty chain).
+	(yyresolveStates): Document the interface.  Move all manipulation of a
+	successfully or unsuccessfully resolved yyGLRState to...
+	(yyresolveValue): ... here so that yyresolveValue always leaves a
+	yyGLRState with consistent data and thus is easier to understand.
+	Remove the yyvalp and yylocp parameters since they are always just
+	taken from the yys parameter.  When reporting a discarded merged value
+	in debugging output, note that it is incompletely merged.  Document the
+	interface.
+	(yyresolveAction): If resolving any of the RHS states fails, destroy
+	them all rather than leaking them.  Thus, as long as user actions are
+	written to clean up the RHS correctly, yyresolveAction always cleans up
+	the RHS of a semantic option.  Document the interface.
+
+2006-02-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
+	led to a segmentation fault in GNU Pascal.  Problem reported
+	by Waldek Hebisch.
+
+2006-02-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	* doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
+	mid-rule action inside a nonterminal symbol in order to declare a
+	destructor for its semantic value.
+
+2006-02-16  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
+	YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
+	__cplusplus && ! defined _STDLIB_H && !
+	((defined YYMALLOC || defined malloc) && (defined YYFREE ||
+	defined free))]: Include <stdlib.h> rather than rolling our own
+	declarations of malloc and free, to avoid problems with
+	incompatible declarations (using 'throw') C++'s stdlib.h.  This
+	should fix Debian bug 340012
+	<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
+	reported by Guillaume Melquiond.
+
+2006-02-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* NEWS: Clarify symbols versus types in unused-value warnings.
+
+	* configure.ac (AC_INIT): Bump version number.
+
+2006-02-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* NEWS: Version 2.1a.
+	* tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
+	since C99 requires this.
+
+2006-02-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* m4/c-working.m4: New file.
+	* configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
+
+2006-02-10  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* Makefile.maint: Merge from coreutils.
+
+2006-02-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+	More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+	* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
+	configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
+	CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
+	LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
+	messes up because C++ code is compiled in 32-bit mode but linked
+	in 64-bit mode.
+
+2006-02-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+	More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+	* doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
+	2.5.31.  This resembles the 2005-10-10 patch to src/scan-skel.l.
+
+	* examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
+	nodist_PROGRAMS, since we don't need to actually compile the
+	example if we're just doing a plain 'make'.  This avoids bothering
+	the installer unnecessarily about problems due to weird C++
+	compilers.
+
+2006-02-06  Paul Eggert  <eggert@cs.ucla.edu>
+
+	More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+	* tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
+	than #include "...", and compile with -I'.'.  The old method was
+	not portable, according to Posix and the C standard, and it does
+	not work with Sun C 5.7, where previous #line directives affect
+	the working directory used in later #include "..." directives.
+
+2006-02-06  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+	Various DJGGP specific issues in /djgpp
+
+2006-02-02  Paul Eggert  <eggert@cs.ucla.edu>
+
+	More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+	* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
+	'#include <map>' works and that you can apply ++ to iterators.
+
+2006-02-01  Paul Eggert  <eggert@cs.ucla.edu>
+
+	Work around portability problems summarized by Nelson H. F. Beebe in
+	<http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
+
+	* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
+	that '#include <string>' works.
+
+	* data/lalr1.cc (yytranslate_): No longer inline, to work around a
+	porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
+	"warning: sorry: semantics of inline function static data `const
+	unsigned char translate_table[262]' are wrong (you'll wind up with
+	multiple copies)".
+
+	* lib/bbitset.h (struct bitset_vtable): Rename members not, and,
+	or, xor to not_, and_, or_, and xor_, respectively.  This works
+	around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
+	random system header somewhere that includes the equivalent of
+	<iso646.h>.
+
+	* tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
+	-E" works; it apparently doesn't work with PathScale EKO Compiler
+	Suite Version 2.0.
+
+2006-01-30  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	During deterministic GLR operation, user actions should be able to
+	influence the parse by changing yychar.  To make this easier to fix and
+	to make glr.c easier to evolve in general, don't maintain yytoken in
+	parallel with yychar; just compute yytoken when needed.
+	* tests/glr-regression.at (Incorrect lookahead during deterministic
+	GLR): Check that setting yychar in a user action has the intended
+	effect.
+	* data/glr.c (yyGLRStack): Remove yytokenp member.
+	(yyclearin): Don't set *yytokenp.
+	(yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
+	yychar rather than *yytokenp to determine the current lookahead.
+	Compute yytoken locally when needed.
+	(yyparse): Likewise.  Remove the local yytoken that yytokenp used to
+	point to.
+
+	* doc/bison.texinfo (Bison Options): Remove stray sentence fragment
+	after `--report' documentation.
+
+2006-01-30  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* src/parse-gram.y (grammar_declaration): Location of printer
+	symbol is @1, not list->location.  Bug reported by twlevo.
+	* tests/input.at (Incompatible Aliases): Adjust to above change.
+
+2006-01-29  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* tests/input.at (AT_CHECK_UNUSED_VALUES): Remove.  Instead, do
+	all the test at once.  This makes the output easier to read in the
+	normal case.
+
+	Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
+	got from <http://bro-ids.org/download.html>.  The bug is that
+	when two actions appeared in succession, the second one was
+	scanned before the first one was added to the grammar rule
+	as a midrule action.  Bison then output the incorrect warning
+	"parse.y:905.17-906.36: warning: unused value: $3".
+	* src/parse-gram.y (BRACED_CODE, action): These are no longer
+	associated with a value.
+	(rhs): Don't invoke grammar_current_rule_action_append.
+	(action): Invoke it here instead.
+	* src/reader.c (grammar_midrule_action): Now extern.
+	(grammar_current_rule_action_append): Don't invoke
+	grammar_midrule_action; that is now the scanner's job.
+	* src/reader.h (last_string, last_braced_code_loc):
+	(grammar_midrule_action): New decls.
+	* src/scan-gram.l (last_string): Now extern, sigh.
+	(last_braced_code_loc): New extern variable.
+	(<INITIAL>"{"): Invoke grammar_midrule_action if the current
+	rule already has an action.
+	(<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
+	* tests/input.at (AT_CHECK_UNUSED_VALUES):
+	Add some tests to check that the above changes fixed the bug.
+
+2006-01-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
+	All used changed.  Check whether the symbol has a destructor,
+	not whether it is typed.
+	* tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
+	that the values are still reported as unused.  All line numbers
+	adjusted.
+
+2006-01-23  Paul Eggert  <eggert@cs.ucla.edu>
+
+	Work around a bug in bro 0.8, which underparenthesizes its
+	definition of YYLLOC_DEFAULT.
+	* data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
+	their arguments.
+	* data/lalr1.cc: Likewise.
+	* data/yacc.cc: Likewise.
+
+2006-01-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+	Work around a bug in Pike 7.0, and give the Pike folks a
+	better way to override the usual int widths.
+	* data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
+	user can override the types.
+	(short): #undef, to work around a bug in Pike 7.0.
+	(yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
+	(union yyalloc.yyss): Use yytype_int16 rather than short.
+	All uses changed.
+	(yysigned_char): Remove.
+	* src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
+	(YYTYPE_INT16): New macros, to test the new facility in yacc.c.
+	* tests/regression.at (Web2c Actions): Adjust to above changes.
+
+	* src/reader.c (check_and_convert_grammar): New function.
+	(reader): Close the input file even if something went wrong during
+	parsing.  Minor file descriptor leak reported by twlevo.
+
+	* src/assoc.c (assoc_to_string): Use a default: abort (); case
+	to pacify gcc -Wswitch-default.
+	* src/scan-gram.l (adjust_location): Use a default: break; case
+	to pacify gcc -Wswitch-default.
+	* src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
+	(skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
+	(skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
+	Move these decls to scan-skel.l, since they don't need to be
+	visible elsewhere.
+	* src/scan-skel.l: Accept the above decls.
+	(skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
+	is used.
+
+2006-01-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* Makefile.cfg (local-checks-to-skip): Add changelog-check,
+	since we don't want to insist on a version number at the start
+	of the changelog every time.
+	* Makefile.maint: Sync from coreutils a bit better.
+	(sc_trailing_blank): Renamed from sc_trailing_space.
+	All uses changed.
+	(sc_no_if_have_config_h, sc_require_config_h):
+	(sc_prohibit_assert_without_use): New rules.
+	(sc_obsolete_symbols): Don't catch Makefile.maint itself.
+	(sc_dd_max_sym_length): Fix leading spaces in rule.
+	(sc_system_h_headers): Prefix with @.
+	(sc_useless_cpp_parens, m4-check): Output line numbers.
+	(changelog-check): Allow version only in head.
+	* data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
+	satisfy new Makefile.maint rule.
+	* data/glr.c: Likewise.
+	* data/glr.cc: Likewise.
+	* data/lalr1.cc: Likewise.
+	* data/yacc.c: Likewise.
+	* lib/ebitsetv.c: Likewise.
+	* lib/lbitset.c: Likewise.
+	* lib/subpipe.c: Likewise.
+	* lib/timevar.c: Likewise.
+	* src/system.h: Likewise.
+	* data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
+	* djgpp/Makefile.maint: Add copyright notice.
+	* djgpp/README.in: Likewise.
+	* djgpp/config.bat: Likewise.
+	* djgpp/config.site: Likewise.
+	* djgpp/config_h.sed: Likewise.
+	* djgpp/djunpack.bat: Likewise.
+	* djgpp/config.sed: Fix copyright notice to match standard format.
+	* djgpp/subpipe.h: Likewise.
+	* lib/bitsetv-print.c: Likewise.
+	* lib/bitsetv.c: Likewise.
+	* lib/subpipe.h: Likewise.
+	* lib/timevar.c: Likewise.
+	* lib/timevar.h: Likewise.
+	* djgpp/subpipe.c: Use standard recipe for config.h.
+	* lib/abitset.c: Likewise.
+	* lib/bitset.c: Likewise.
+	* lib/bitset_stats.c: Likewise.
+	* lib/bitsetv-print.c: Likewise.
+	* lib/bitsetv.c: Likewise.
+	* lib/ebitsetv.c: Likewise.
+	* lib/get-errno.c: Likewise.
+	* lib/lbitset.c: Likewise.
+	* lib/subpipe.c: Likewise.
+	* lib/timevar.c: Likewise.
+	* lib/vbitset.c: Likewise.
+	* tests/local.at: Likewise.
+	* src/scan-gram.l: Don't include verify.h, since system.h does
+	that for us.
+	* .x-sc_require_config_h: New file.
+	* .x-sc_unmarked_diagnostics: New file.
+
+2006-01-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+	Be a bit more systematic about using 'abort'.
+	* lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
+	* lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
+	Put 'default: abort ();' before some other case, to satisfy older
+	pedantic compilers.
+	* lib/bitset_stats.c (bitset_stats_init): Likewise.
+	* lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
+	* lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
+	* src/conflicts.c (resolve_sr_conflict): Likewise.
+	* src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
+	(get_decision_str, get_orientation_str, get_node_alignment_str):
+	(get_arrow_mode_str, get_crossing_type_str, get_view_str):
+	(get_linestyle_str, get_arrowstyle_str): Likewise.
+	* src/conflicts.c (resolve_sr_conflict):
+	Use a default case rather than one for the one remaining enum
+	value, to catch invalid enum values as well.
+	* src/lalr.c (set_goto_map, map_goto):
+	Prefer "assert (FOO);" to "if (!FOO) abort ();".
+	* src/nullable.c (nullable_compute, token_definitions_output):
+	Likewise.
+	* src/reader.c (packgram, reader): Likewise.
+	* src/state.c (transitions_to, state_new, state_reduction_find):
+	Likewise.
+	* src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
+	(symbol_pack): Likewise.
+	* src/tables.c (conflict_row, pack_vector): Likewise.
+	* src/scan-skel.l (QPUTS): Remove unnecessary parens.
+	(BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
+	* src/system.h: Don't include <assert.h>.
+	(assert): New macro.
+
+	* doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
+	(Destructor Decl, Parser Function, Pure Calling):
+	Describe rules for braces inside C code more carefully.
+
 2006-01-19  Paul Eggert  <eggert@cs.ucla.edu>
 
+	Fix some porting glitches found by Nelson H. F. Beebe.
+	* lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
+	compilers that don't understand that abort () does not return.
+	* src/state.c (transitions_to): Likewise.
+	* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
+	that '#include <cstdlib>' works.
+	* src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
+	(INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
+	#undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
+	for the benefit of some pre-C99 compilers.
+
+	* bootstrap: Undo changes to gnulib files that autoreconf made.
+
 	Minor fixups to get 'make maintainer-check' to work.
 	* configure.ac: Don't use -Wnested-externs, as it's incompatible
 	with the new verify.h implementation.
@@ -1085,7 +1752,7 @@
 
 2005-09-19  Akim Demaille  <akim@epita.fr>
 
-	* NEWS, configure.ac: Version 2.1a.
+	* NEWS, configure.ac: update version number to 2.1a.
 
 2005-09-16  Paul Eggert  <eggert@cs.ucla.edu>