gcc/cp/ChangeLog

   1 2011-03-16  Jason Merrill  <jason@redhat.com>
   2
   3         PR c++/48115
   4         * call.c (convert_arg_to_ellipsis): Handle incomplete type.
   5
   6 2011-03-16  Jason Merrill  <jason@redhat.com>
   7
   8         * parser.c (cp_parser_abort_tentative_parse): Make sure we haven't
   9         committed to this tentative parse.
  10
  11         PR c++/47999
  12         * semantics.c (finish_call_expr): Preserve reference semantics
  13         in templates.
  14
  15         * call.c (convert_default_arg): Use LOOKUP_IMPLICIT.
  16
  17 2011-03-16  Jakub Jelinek  <jakub@redhat.com>
  18
  19         * cp-objcp-common.c (cp_function_decl_explicit_p): Don't crash if
  20         DECL_LANG_SPECIFIC is NULL.
  21
  22 2011-03-15  Jason Merrill  <jason@redhat.com>
  23
  24         Core 1074
  25         * pt.c (value_dependent_expression_p) [NOEXCEPT_EXPR]: Don't
  26         check value_dependent_expression_p on the operand.
  27
  28         * semantics.c (push_cx_call_context): Return bool.
  29         (cxx_eval_call_expression): Handle excess depth.
  30
  31         Core 1191
  32         * method.c (synthesized_method_walk): Cleanups don't affect the
  33         triviality of a constructor, but do affect deletion and exception
  34         specification.
  35
  36 2011-03-15  Rodrigo Rivas Costa  <rodrigorivascosta@gmail.com>
  37
  38         * decl2.c (cp_check_const_attributes): New.
  39         (cplus_decl_attributes): Call cp_check_const_attributes.
  40
  41 2011-03-15  Jason Merrill  <jason@redhat.com>
  42
  43         PR c++/34758
  44         * call.c (convert_default_arg): Use DECL_ORIGIN of fn.  Check for
  45         recursion first.
  46         (push_defarg_context, pop_defarg_context): New.
  47         * parser.c (cp_parser_late_parsing_default_args): Use them.
  48         * cp-tree.h: Declare them.
  49
  50 2011-03-11  Dodji Seketeli  <dodji@redhat.com>
  51
  52         * call.c (add_builtin_candidate)<case INDIRECT_REF>: The type of
  53         the argument of the indirection operator should not be dependent.
  54         Fix the comment.
  55
  56 2011-03-11  Jason Merrill  <jason@redhat.com>
  57
  58         PR c++/47125
  59         * pt.c (tsubst) [TYPENAME_TYPE]: Only give errors if tf_error.
  60
  61         PR c++/47144
  62         * parser.c (cp_parser_template_type_arg): Set
  63         type_definition_forbidden_message.
  64
  65         PR c++/47808
  66         * decl.c (compute_array_index_type): Discard folding
  67         if it didn't produce a constant.
  68
  69 2011-03-11  Jakub Jelinek  <jakub@redhat.com>
  70
  71         PR c++/48035
  72         * init.c (build_zero_init_1): Extracted from build_zero_init.
  73         Add FIELD_SIZE argument, if non-NULL and field bit_position
  74         as not smaller than that, don't add that field's initializer.
  75         Pass DECL_SIZE as last argument to build_zero_init_1
  76         for DECL_FIELD_IS_BASE fields.
  77         (build_zero_init): Use build_zero_init_1.
  78
  79 2011-03-10  Jason Merrill  <jason@redhat.com>
  80
  81         PR c++/48029
  82         * pt.c (iterative_hash_template_arg): Remove special case for
  83         ARRAY_TYPE.
  84
  85         PR c++/47198
  86         * parser.c (cp_parser_single_declaration): Just return if
  87         cp_parser_parse_and_diagnose_invalid_type_name complained.
  88
  89 2011-03-09  Jason Merrill  <jason@redhat.com>
  90
  91         PR c++/44629
  92         * pt.c (unify): An unresolved overload is a nondeduced context.
  93
  94 2011-03-09  Martin Jambor  <mjambor@suse.cz>
  95
  96         PR tree-optimization/47714
  97         * method.c (use_thunk): Clear addressable flag of thunk arguments.
  98
  99 2011-03-08  Dodji Seketeli  <dodji@redhat.com>
 100
 101         PR c++/47705
 102         * pt.c (convert_nontype_argument): Only call decay_conversion on
 103         arrays.
 104
 105 2011-03-08  Jason Merrill  <jason@redhat.com>
 106
 107         PR c++/47488
 108         * mangle.c (write_template_arg_literal) [STRING_CST]: Sorry.
 109
 110         PR c++/47705
 111         * pt.c (convert_nontype_argument): Don't crash on non-pointer
 112         argument to pointer parameter.
 113
 114         PR c++/45651
 115         * pt.c (instantiate_decl): Don't clear DECL_INTERFACE_KNOWN on
 116         !TREE_PUBLIC decls.
 117
 118 2011-03-08  Dodji Seketeli  <dodji@redhat.com>
 119
 120         PR c++/47957
 121         * name-lookup.c (binding_to_template_parms_of_scope_p): Only
 122         consider scopes of primary template definitions.  Adjust comments.
 123
 124 2011-03-07  Jason Merrill  <jason@redhat.com>
 125
 126         PR c++/48003
 127         * pt.c (convert_nontype_argument): Fix -fpermissive allowing
 128         integer overflow.
 129         * semantics.c (potential_constant_expression_1): Check TREE_OVERFLOW.
 130
 131         PR c++/48015
 132         * init.c (constant_value_1): Always require init to be TREE_CONSTANT.
 133
 134         PR c++/48008
 135         * mangle.c (write_type): Strip cv-quals from FUNCTION_TYPE here.
 136         (write_CV_qualifiers_for_type): Not here.
 137
 138 2011-03-06  Joseph Myers  <joseph@codesourcery.com>
 139
 140         * lang-specs.h: Match -save-temps* instead of -save-temps.
 141
 142 2011-03-05  Jason Merrill  <jason@redhat.com>
 143
 144         * mangle.c (write_expression): Change ABI v6 to v5.
 145         (write_type): Likewise.
 146
 147 2011-03-04  Jan Hubicka  <jh@suse.cz>
 148
 149         PR lto/47497
 150         * optimize.c (maybe_clone_body): Update call of cgraph_same_body_alias
 151         and cgraph_add_thunk.
 152         * method.c (make_alias_for_thunk, use_thunk): Likewise.
 153         * mangle.c (mangle_decl): Likewise.
 154
 155 2011-03-04  Jason Merrill  <jason@redhat.com>
 156
 157         PR c++/47971
 158         * pt.c (tsubst_copy_and_build) [PSEUDO_DTOR_EXPR]: Use tsubst for type.
 159         (tsubst_copy) [default]: Just return t if !ENABLE_CHECKING.
 160
 161         PR c++/46220
 162         * search.c (check_final_overrider): Allow pointer to same incomplete
 163         class type with different cv-quals.
 164
 165 2011-03-03  Paolo Carlini  <paolo.carlini@oracle.com>
 166
 167         PR c++/47974
 168         * pt.c (tsubst_template_args): Check argument t for error_mark_node.
 169
 170 2011-03-03  Jason Merrill  <jason@redhat.com>
 171
 172         PR c++/47950
 173         * pt.c (tsubst_copy_and_build) [TARGET_EXPR]: Retain TREE_CONSTANT.
 174
 175 2011-03-02  Jason Merrill  <jason@redhat.com>
 176
 177         PR c++/47950
 178         * parser.c (cp_parser_condition): Don't fold_non_dependent_expr here.
 179
 180         PR c++/47774
 181         * tree.c (build_vec_init_elt): Split out from...
 182         (build_vec_init_expr): ...here.
 183         (diagnose_non_constexpr_vec_init): New fn.
 184         * semantics.c (potential_constant_expression_1): Use it.
 185         * cp-tree.h: Declare it.
 186
 187 2011-03-01  Jason Merrill  <jason@redhat.com>
 188
 189         PR c++/46159
 190         * parser.c (cp_parser_primary_expression): Don't warn about a
 191         failed tentative parse.
 192
 193         PR c++/47200
 194         * semantics.c (cxx_bind_parameters_in_call): Don't call
 195         adjust_temp_type on non-constant args.
 196
 197         PR c++/47851
 198         * call.c (standard_conversion): Provide requested cv-quals on
 199         class rvalue conversion.
 200
 201         PR c++/46282
 202         * decl2.c (grokbitfield): Handle type-dependent width.
 203
 204 2011-02-28  Jason Merrill  <jason@redhat.com>
 205
 206         PR c++/47873
 207         * class.c (update_vtable_entry_for_fn): Check BINFO_LOST_PRIMARY_P
 208         after checking for a non-thunk.
 209
 210 2011-02-26  Jason Merrill  <jason@redhat.com>
 211
 212         PR c++/47904
 213         * tree.c (cp_tree_equal): Compare DECL_PARM_LEVEL.
 214         * pt.c (iterative_hash_template_arg): And hash it.
 215
 216         PR c++/47897
 217         * semantics.c (non_const_var_error): Split out from...
 218         (cxx_eval_constant_expression): ...here.
 219         (potential_constant_expression_1) [VAR_DECL]: Use it.
 220         Allow dependent variables.
 221
 222 2011-02-24  Jason Merrill  <jason@redhat.com>
 223
 224         * parser.c (cp_parser_constant_expression): Set
 225         non_integral_constant_expression correctly for C++0x too.
 226         (cp_parser_static_assert): Allow non-constant expression.
 227         (cp_parser_direct_declarator): Expect non_constant_p to be set
 228         properly for C++0x.
 229         * pt.c (value_dependent_expression_p): Handle TYPEID_EXPR.
 230         * semantics.c (maybe_constant_value): Check type_unknown_p too.
 231         (potential_rvalue_constant_expression): New.
 232         (require_potential_rvalue_constant_expression): New.
 233
 234 2011-02-23  Jason Merrill  <jason@redhat.com>
 235
 236         * cp-tree.h (DECL_PARM_LEVEL): New.
 237         (struct lang_decl_parm): Add level field.
 238         * name-lookup.c (function_parm_depth): New fn.
 239         * name-lookup.h: Declare it.
 240         * parser.c (cp_parser_parameter_declaration_list): Use it.
 241         * mangle.c (struct globals): Add parm_depth field.
 242         (write_bare_function_type): Adjust it.
 243         (write_expression): Include the level delta in PARM_DECL mangling
 244         for abi >= 6.
 245
 246         * semantics.c (finish_decltype_type): Remove shortcut for decltype
 247         of id-expression.
 248         * mangle.c (write_type) [DECLTYPE_TYPE]: Strip it here for abi < 6.
 249
 250 2011-02-23  Nathan Froyd  <froydnj@codesourcery.com>
 251
 252         PR c++/46868
 253         * parser.c (cp_parser_class_specifier): Require a closing brace
 254         to attempt error recovery.
 255
 256 2011-02-23  Jakub Jelinek  <jakub@redhat.com>
 257
 258         PR c++/47833
 259         * pt.c (struct pending_template): Add chain_next GTY option.
 260         * decl.c (struct named_label_use_entry): Likewise.
 261
 262 2011-02-22  Paolo Carlini  <paolo.carlini@oracle.com>
 263
 264         PR c++/47242
 265         * semantics.c (build_lambda_object): Bail out if a field is
 266         error_mark_node.
 267
 268 2011-02-22  Dodji Seketeli  <dodji@redhat.com>
 269
 270         PR c++/47666
 271         * class.c (dfs_declare_virt_assop_and_dtor)
 272         (declare_virt_assop_and_dtor): New static functions.
 273         (add_implicitly_declared_members): Use
 274         declare_virt_assop_and_dtor.
 275
 276 2011-02-21  Jason Merrill  <jason@redhat.com>
 277
 278         PR c++/47207
 279         * decl2.c (decl_constant_var_p): A constexpr var needs an
 280         initializer to be constant.
 281         * semantics.c (cxx_eval_constant_expression): Complain about
 282         constexpr var used in its own initializer.
 283         * call.c (set_up_extended_ref_temp): Set
 284         DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P too.
 285
 286 2011-02-20  Jason Merrill  <jason@redhat.com>
 287
 288         PR c++/47199
 289         * semantics.c (cxx_eval_call_expression): Call
 290         cxx_eval_constant_expression in trivial shortcut.
 291
 292         PR c++/46831
 293         * call.c (convert_class_to_reference): Don't try to set up a
 294         second conv sequence for non-viable candidates.
 295
 296         PR c++/47703
 297         * error.c (location_of): Handle non-tagged types.
 298
 299         PR c++/46472
 300         * method.c (process_subob_fn): Instantiate constexpr templates.
 301         * optimize.c (maybe_clone_body): Propagate DECL_DECLARED_CONSTEXPR_P.
 302
 303 2011-02-20  Dodji Seketeli  <dodji@redhat.com>
 304
 305         PR c++/46394
 306         * pt.c (tsubst_pack_expansion): do not use
 307         cp_tree_equal/same_type_p to detect an expansion of a parameter
 308         pack.
 309
 310 2011-02-19  Jason Merrill  <jason@redhat.com>
 311
 312         PR c++/47503
 313         * semantics.c (cxx_eval_call_expression): Shortcut trivial copy.
 314
 315 2011-02-18  Paolo Carlini  <paolo.carlini@oracle.com>
 316
 317         PR c++/47795
 318         * semantics.c (finish_non_static_data_member): Early return if
 319         object is error_mark_node.
 320
 321 2011-02-18  Dodji Seketeli  <dodji@redhat.com>
 322
 323         PR c++/47208
 324         * pt.c (do_auto_deduction): Do not mention error_mark_node in
 325         diagnostics.
 326         * semantics.c (finish_id_expression): Do not pass erroneous decl
 327         to decl_constant_var_p.
 328
 329 2011-02-17  Jakub Jelinek  <jakub@redhat.com>
 330
 331         PR c++/47783
 332         * cvt.c (convert_from_reference): Call mark_exp_read.
 333
 334 2011-02-11  Dodji Seketeli  <dodji@redhat.com>
 335
 336         PR c++/47172
 337         * pt.c (finish_call_expr): Consider a call expression that has a
 338         dependent "this" pointer as being dependent.  Add comments.
 339         (dependent_type_p, type_dependent_expression_p): Update comments.
 340
 341 2011-02-16  Dodji Seketeli  <dodji@redhat.com>
 342
 343         PR c++/47326
 344         * pt.c (tsubst_copy)<case SIZEOF_EXPR>: Ensure that even pack
 345         expansion arguments are not evaluated.
 346
 347 2011-02-16  Jakub Jelinek  <jakub@redhat.com>
 348
 349         PR c++/47704
 350         * cp-tree.h (ENUM_FIXED_UNDERLYING_TYPE_P): Use TYPE_LANG_FLAG_5
 351         instead of TYPE_LANG_FLAG_3.
 352         * pt.c (lookup_template_class): Copy over
 353         ENUM_FIXED_UNDERLYING_TYPE_P.
 354
 355 2011-02-15  Jason Merrill  <jason@redhat.com>
 356
 357         PR c++/46807
 358         * method.c (synthesized_method_walk): Always exit early for
 359         trivial fn in C++98 mode.
 360
 361 2011-02-14  Jason Merrill  <jason@redhat.com>
 362
 363         PR c++/47482
 364         * parser.c (cp_parser_enumerator_definition): Call
 365         fold_non_dependent_expr.
 366
 367 2011-02-09  Jason Merrill  <jason@redhat.com>
 368
 369         * decl.c (cp_make_fname_decl): Set DECL_THIS_STATIC at toplevel.
 370         * semantics.c (finish_fname): Only return the name if we're in
 371         a function.
 372
 373         * decl.c (build_enumerator): Don't perform integral promotions on
 374         non-integral constants.
 375
 376         * cvt.c (convert_to_void): Handle null op1.
 377
 378         * class.c (type_has_constexpr_default_constructor): Make sure the
 379         caller stripped an enclosing array.
 380         * init.c (perform_member_init): Strip arrays before calling it.
 381
 382         PR c++/47511
 383         * semantics.c (potential_constant_expression_1): Handle TEMPLATE_DECL.
 384
 385 2011-02-03  Dodji Seketeli  <dodji@redhat.com>
 386
 387         PR c++/47398
 388         * tree.c (cp_tree_equal)<TEMPLATE_PARM_INDEX>: Take the number of
 389         template parameters in account.
 390
 391 2011-02-03  Nathan Froyd  <froydnj@codesourcery.com>
 392
 393         PR c++/46890
 394         * parser.c (cp_parser_class_specifier): Fix setting of
 395         want_semicolon.
 396
 397 2011-01-31  Jakub Jelinek  <jakub@redhat.com>
 398
 399         PR c++/47416
 400         * semantics.c (build_data_member_initialization): Handle
 401         STATEMENT_LIST always instead of just for CLEANUP_BODY.
 402
 403 2011-01-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 404
 405         * g++spec.c (lang_specific_driver) [HAVE_LD_STATIC_DYNAMIC] Use
 406         LD_STATIC_OPTION, LD_DYNAMIC_OPTION.
 407
 408 2011-01-29  Dodji Seketeli  <dodji@redhat.com>
 409
 410         PR c++/47311
 411         * cp-tree.h (fixup_template_parms): Declare.
 412         * pt.c (end_template_parm_list): Do not fixup template parms here.
 413         (fixup_template_parms): Remove static. Fix typo in the
 414         comments. Remove useless code statement.
 415         (fixup_template_parm): For a template template parameter, fixup
 416         its attributes before fixing up its type.
 417         * parser.c
 418         (cp_parser_template_declaration_after_export): After parsing
 419         template parameters fixup their types.
 420
 421 2011-01-26  Jakub Jelinek  <jakub@redhat.com>
 422
 423         PR c++/47476
 424         * semantics.c (potential_constant_expression_1): Handle
 425         TRUTH_XOR_EXPR.
 426
 427 2011-01-26  Dave Korn  <dave.korn.cygwin@gmail.com>
 428
 429         PR c++/43601
 430         * semantics.c (expand_or_defer_fn_1): Handle it.
 431         * decl2.c (decl_needed_p): Likewise.
 432
 433 2011-01-21  Jason Merrill  <jason@redhat.com>
 434
 435         PR c++/47041
 436         * semantics.c (build_constexpr_constructor_member_initializers):
 437         Handle trivial copy.
 438
 439 2011-01-21  Jakub Jelinek  <jakub@redhat.com>
 440
 441         PR c++/47388
 442         * semantics.c (begin_for_stmt): If -fno-for-scope, don't
 443         assume init must be NULL if scope is NULL.
 444         (begin_range_for_stmt): Likewise.
 445
 446 2011-01-21  Jason Merrill  <jason@redhat.com>
 447
 448         PR c++/46552
 449         * semantics.c (cxx_eval_constant_expression): Handle OFFSET_REF.
 450
 451         PR c++/46977
 452         * semantics.c (potential_constant_expression_1): Split out from
 453         potential_constant_expression.  Add want_rval parm.  Handle
 454         template expression forms.  Don't enforce restriction on address
 455         of automatic variable here.  Add a couple of diagnostics that
 456         had been missing.
 457         (require_potential_constant_expression): New entry point.
 458         (build_data_member_initialization, register_constexpr_fundef): Adjust.
 459         (maybe_constant_value): Check potential_constant_expression.
 460         * pt.c (fold_non_dependent_expr_sfinae): Likewise.
 461         * tree.c (build_vec_init_expr): Adjust.
 462
 463 2011-01-19  Jakub Jelinek  <jakub@redhat.com>
 464
 465         PR c++/47303
 466         * decl2.c (finish_anon_union): Only call mangle_decl if TREE_STATIC
 467         or DECL_EXTERNAL.
 468
 469 2011-01-17  Jason Merrill  <jason@redhat.com>
 470
 471         PR c++/47067
 472         * semantics.c (base_field_constructor_elt): New fn.
 473         (cxx_eval_bare_aggregate): Use it.
 474         (build_data_member_initialization): Leave COMPONENT_REF for
 475         vfield inits.
 476
 477 2011-01-14  Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
 478
 479         * parser.c (cp_parser_range_for): Remove the "unused variable" warning
 480         workaround.
 481
 482 2011-01-15  Giovanni Funchal  <gafunchal@gmail.com>
 483             Jonathan Wakely  <jwakely.gcc@gmail.com>
 484
 485         PR c++/33558
 486         * decl.c (grokdeclarator): Reject mutable reference members.
 487
 488 2011-01-14  Jason Merrill  <jason@redhat.com>
 489
 490         PR c++/47289
 491         * pt.c (coerce_template_parms): Fix error recovery.
 492
 493         PR c++/46903
 494         * typeck2.c (check_narrowing): Only check arithmetic types.
 495
 496         PR c++/46688
 497         * tree.c (build_vec_init_expr): Handle flexible array
 498         properly.
 499
 500 2011-01-13  Kai Tietz  <kai.tietz@onevision.com>
 501
 502         PR c++/47213
 503         * cp-tree.h (CLASSTYPE_VISIBILITY): Use
 504         TYPE_MAIN_DECL instead of TYPE_NAME.
 505         (CLASSTYPE_VISIBILITY_SPECIFIED): Likewise.
 506         * decl2.c (determine_visibility): Add check
 507         of CLASS_TYPE_P for underlying_type.
 508
 509 2011-01-12  Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
 510
 511         * cp-tree.h (begin_for_scope): New prototype.
 512         (begin_for_stmt): Update prototype.
 513         (begin_range_for_stmt): Update prototype.
 514         * init.c (build_vec_init): Update call to begin_for_stmt.
 515         * parser.c (cp_parser_for): New.
 516         (cp_parser_c_for): Add three new parameters.
 517         (cp_parser_range_for): Likewise. Most parsing code removed.
 518         (cp_parser_iteration_statement): Call cp_parser_for instead of
 519         cp_parser_c_for and cp_parser_range_for.
 520         (cp_parser_for_init_statement): Add new parameter and return type.
 521         (cp_parser_block_declaration): Update call to
 522         cp_parser_simple_declaration.
 523         (cp_parser_simple_declaration): Add new parameter.
 524         Update call to cp_parser_init_declarator.
 525         (cp_parser_init_declarator): Add new parameter.
 526         * pt.c (tsubst_expr): Update call to begin_for_stmt.
 527         * semantics.c (begin_for_scope): New.
 528         (begin_for_stmt): Add two new parameters.
 529         (begin_range_for_stmt): Likewise.
 530
 531 2011-01-12  Nicola Pero  <nicola.pero@meta-innovation.com>
 532
 533         * parser.c (cp_parser_objc_at_property_declaration): Improved
 534         error message.
 535
 536 2011-01-11  Dodji Seketeli  <dodji@redhat.com>
 537
 538         PR debug/46955
 539         * cp-lang.c (get_template_innermost_arguments_folded)
 540         (get_template_argument_pack_elems_folded)
 541         (template_arg_needs_folding, fold_cplus_constants): New static
 542         functions.
 543         (LANG_HOOKS_GET_INNERMOST_GENERIC_ARGS): Set this hook to
 544         get_template_innermost_arguments_folded.
 545         (LANG_HOOKS_GET_ARGUMENT_PACK_ELEMS): Set this hook to
 546         get_template_argument_pack_elems_folded.
 547
 548 2011-01-11  Jason Merrill  <jason@redhat.com>
 549
 550         PR c++/46658
 551         * init.c (build_new_1): Handle value-init in templates differently.
 552
 553         PR c++/45520
 554         * tree.c (maybe_dummy_object): Check current_class_ref against
 555         context, not current_class_type.
 556
 557 2011-01-08  Nicola Pero  <nicola.pero@meta-innovation.com>
 558
 559         PR objc/47078
 560         * parser.c (cp_parser_objc_typename): If the type is unknown, for
 561         error recovery purposes behave as if it was not specified so that
 562         the default type is used.
 563
 564 2011-01-07  Jakub Jelinek  <jakub@redhat.com>
 565
 566         PR c++/47022
 567         * pt.c (tsubst_copy_and_build): Use tsubst instead of tsubst_copy
 568         for the second build_x_va_arg argument.
 569
 570 2011-01-05  Tom Tromey  <tromey@redhat.com>
 571
 572         * typeck.c (cp_build_addr_expr_1): Update call to lvalue_error.
 573         (lvalue_or_else): Likewise.
 574
 575 2011-01-01  Kai Tietz  <kai.tietz@onevision.com>
 576
 577         PR target/38662
 578         * tree.c (cxx_type_hash_eq):
 579         Allow METHOD_TYPE, too.
 580
 581 \f
 582 Copyright (C) 2011 Free Software Foundation, Inc.
 583
 584 Copying and distribution of this file, with or without modification,
 585 are permitted in any medium without royalty provided the copyright
 586 notice and this notice are preserved.