2003-09-24  Ziemowit Laski  <zlaski@apple.com>

        MERGE OF objc-improvements-branch into MAINLINE.
	See 'gcc/ChangeLog' and 'gcc/testsuite/ChangeLog' for
	the gory details.

From-SVN: r71748

2003-09-15  Andreas Jaeger  <aj@suse.de>
            Kaveh R. Ghazi <ghazi@caip.rutgers.edu>

	* doc/invoke.texi (Warning Options): Describe -Wold-style-definition.
	* c-opts.c (c_common_handle_option): Handle OPT_Wold_style_definition.
	* c-parse.in: Warn about old-style parameter definition.
	* c-common.c: Define warn_old_style_defintion.
	* c-common.h: Declare it.
	* c.opt: Add Wold-style-defintion.

testsuite:
2003-09-15  Andreas Jaeger  <aj@suse.de>

	* gcc.dg/Wold-style-definition-1.c: New test.

From-SVN: r71400

ChangeLog:
        * langhooks-def.h (lhd_decl_uninit): Declare.
        (LANG_HOOKS_DECL_UNINIT): New macro.
        (LANG_HOOKS_INITIALIZER): Adjust.
        * langhooks.h (struct lang_hooks): Add new field
        decl_uninit.
        * langhooks.c (lhd_decl_uninit): Define.
        * c-common.c (c_decl_uninit_1): New function.
        (c_decl_uninit): New function.
        (warn_init_self): Define.
        * c-common.h (c_decl_uninit): Declare.
        (warn_init_self): Declare.
        * c.opt: Introduce -Winit-self.
        * c-opts.c (c_common_handle_options): Set warn_init_self.
        * c-lang.c (LANG_HOOKS_DECL_UNINIT): Define.
        * objc/objc-lang.c  (LANG_HOOKS_DECL_UNINIT): Define.
        * function.c (uninitialized_vars_warning): Call the language hook.
        * doc/invoke.texi: Document -Winit-self.


cp/ChangeLog:
        * cp/cp-lang.c (LANG_HOOKS_DECL_UNINIT): Define.


testsuite:
        * gcc.dg/uninit-D.c: New Test.
        * gcc.dg/uninit-E.c: New Test.
        * gcc.dg/uninit-F.c: New Test.
        * gcc.dg/uninit-G.c: New Test.

From-SVN: r70574

* c.opt: Introduce -fworking-directory.
* doc/cpp.texi, doc/invoke.texi, doc/cppopts.texi: Document it.
* c-common.h (flag_working_directory): Declare.
* c-common.c (flag_working_directory): Define.
* c-opts.c (c_common_handle_options): Set it.
(sanitize_cpp_opts): Set...
* cpplib.h (struct cpp_options): ... working_directory option.
(struct cpp_callbacks): Add dir_change.
* cppinit.c (read_original_filename): Call...
(read_original_directory): New.  Look for # 1 "directory//"
and process it.
(cpp_read_main_file): Call dir_change callback if working_directory
option is set.
* gcc.c (cpp_unique_options): Pass -g*.
* c-lex.c (cb_dir_change): New.
(init_c_lex): Set dir_change callback.
* toplev.c (src_pwd): New static variable.
(set_src_pwd, get_src_pwd): New functions.
* toplev.h (get_src_pwd, set_src_pwd): Declare.
* dbxout.c (dbxout_init): Call get_src_pwd() instead of getpwd().
* dwarf2out.c (gen_compile_unit_die): Likewise.
* dwarfout.c (output_compile_unit_die, dwarfout_init): Likewise.

From-SVN: r70189

	* Makefile.in: Refine dependencies.
	* c-opts.c (c_common_handle_option): Do nothing for -Wimport.
	* c.opt: Update help for -Wimport.
	* cppfiles.c: Include hashtab.h.  Update comments.
	(stack_file): Read the file before updating dependencies.
	(once_only_file_p): Be smarter about marking once-only files.
	(_cpp_mark_file_once_only): Correct the check for existence on
	the list.
	(open_file_failed): Use name not path, which is NULL.
	* cpphash.h: Don't include hashtab.h.
	(struct _cpp_file): Remove.
	(struct cpp_reader): Update.
	* cppinit.c (cpp_create_reader): Don't initialize warn_import.
	* cpplib.h (struct cpp_options): Remove warn_import.
	(cpp_simplify_path): Remove.

From-SVN: r70045

c-parse.in (lineno_stmt_decl_or_labels_ending_decl): Also warn when warn_declaration_after_statement.

	* c-parse.in (lineno_stmt_decl_or_labels_ending_decl): Also warn
	when warn_declaration_after_statement.  Call pedwarn_c90, not
	pedwarn.  Correct message: it's "ISO C90", not "ISO C89".
	* c-common.c (warn_declaration_after_statement): Define.
	* c-common.h (warn_declaration_after_statement): Declare.
	* c.opt (Wdeclaration-after-statement): New.
	* c-errors.c (pedwarn_c90): New function.
	* c-opts.c (c_common_handle_option) <case
	OPT_Wdeclaration_after_statement>: New.
	* c-tree.h (pedwarn_c90): Declare.
	* doc/invoke.texi (Option Summary): Document
	-Wdeclaration-after-statement.
	(Warning Options): Ditto.

Co-Authored-By: Michael Culbertson <Michael.J.Culbertson@wheaton.edu>

From-SVN: r69899

	* c.opt: Document Uncodumented; use it.  Document ObjC options.
	* opts.c (print_filtered_help): Skip undocumented switches.
	* opts.h (CL_UNDOCUMENTED): New.
	* opts.sh: Handle Undocumented.
	* toplev.c (documented_lang_options): Prevent its becoming empty.
f:
	* lang-options.h: Remove.
	* lang.opt: Document most options.
objc:
	* lang-options.h: Remove.

From-SVN: r69494

	* c.opt: Document more options.
cp:
	* lang-options.h: Remove.

From-SVN: r69477

	* c.opt: Document more options.
	* toplev.c (documented_lang_options): Remove all local help strings.
treelang:
	* lang-options.h: Remove.
	* lang.opt: Document some options.  Remove --help.
	* tree1.c (treelang_handle_option): Remove OPT__help case.

From-SVN: r69423

	* c-opts.c (print_help): Remove.
	(c_common_handle_option): Don't handle --help.
	* c.opt: Document some options.
	(--help): Remove.
	* opts.c (print_filtered_help): New.
	(print_help): Use it.

From-SVN: r69383

	* Makefile.in: Update.
	* c-opts.c (c_common_handle_option): opt_text now contains the '-'.
	* c.opt: Update documentation.
	* common.opt: Add some help text.
	* opts.c: Include intl.h.
	(wrap_help, print_help): New.
	(find_opt, handle_option, common_handle_option): opt_text now
	contains the '-'.  Use print_help to output help.
	* opts.h (struct cl_option): New member "help".
	* opts.sh: Update to handle help text output and to prepend
	options with '-'.
	* toplev.c (display_help): Remove some help text.

From-SVN: r69068

	* cpplib.h (CPP_AT_NAME, CPP_OBJC_STRING): New token types.
	(struct cpp_options): Add narrow_charset, wide_charset,
	bytes_big_endian fields.  Remove EBCDIC field.
	(cpp_init_iconv, cpp_interpret_string): New external interfaces.

	* cpphash.h: Include <iconv.h> if we have it, otherwise
	provide a dummy definition of iconv_t.
	(struct cpp_reader): Add narrow_cset_desc and wide_cset_desc fields.
	(_cpp_valid_ucn): Update prototype.
	(_cpp_destroy_iconv): New prototype.

	* doc/cpp.texi: Document character set handling.
	* doc/cppopts.texi: Document -fexec-charset= and -fexec-wide-charset=.
	* doc/extend.texi: Delete entire section on multiline strings.
	Rewrite section on __FUNCTION__ etc now that these are
	variables in C.

	* cppucnid.tab, cppucnid.pl: New files.
	* cppucnid.h: New generated file.
	* cppcharset.c: Include cppucnid.h.  Lots of commentary added.
	(iconv_open, iconv, iconv_close): Provide dummy definitions
	if !HAVE_ICONV.
	(SOURCE_CHARSET, struct strbuf, init_iconv_desc, cpp_init_iconv,
	_cpp_destroy_iconv, convert_cset, width_to_mask, convert_ucn,
	emit_numeric_escape, convert_hex, convert_oct, convert_escape,
	cpp_interpret_string, narrow_str_to_charconst,
	wide_str_to_charconst): New.
	(ucn_valid_in_identifier): Use a binary search through the
	ucnranges table defined in cppucnid.h, not a long chain of if
	statements.
	(_cpp_valid_ucn): Add a limit pointer.  Downgrade "universal
	character names are only valid in C++ and C99" to a warning.
	Issue the "meaning of \[uU] is different in traditional C"
	warning here.  Take care not to let iconv see an invalid UCS
	value if we get a malformed UCN.  Issue an error if we don't
	have iconv.
	(cpp_interpret_charconst): Moved here from cpplex.c.  Use
	cpp_interpret_string to do the heavy lifting.

	* cppinit.c (cpp_create_reader): Initialize bytes_big_endian,
	narrow_charset, wide_charset fields of options structure.
	(cpp_destroy): Call _cpp_destroy_iconv.
	* cpplex.c (forms_identifier_p): Adjust call to _cpp_valid_ucn.
	(maybe_read_ucn, hex_digit_value, cpp_parse_escape): Delete.
	(cpp_interpret_charconst): Moved to cppcharset.c.
	* cpplib.c (dequote_string): Delete.
	(interpret_string_notranslate): New.
	(do_line, do_linemarker): Use interpret_string_notranslate.

	* Makefile.in (cppcharset.o): Depend on cppucnid.h.

	* c-common.c (fname_string, combine_strings): Delete.
	* c-common.h (fname_string, combine_strings): Delete prototypes.
	* c-lex.c (ignore_escape_flag): Delete.
	(cb_ident): Use cpp_interpret_string, not lex_string.
	(get_nonpadding_token): New function.
	(c_lex): Handle Objective-C @-prefixed identifiers and strings here.
	Adjust calls to lex_string.  Don't write *value twice.
	(lex_string): Now handles string constant concatenation.
	Most of the work handed off to cpp_interpret_string.
	Call fix_string_type here.
	* c-parse.in (STRING_FUNC_NAME, VAR_FUNC_NAME): Replace with
	FUNC_NAME, throughout.
	(OBJC_STRING): New token type.
	(primary:STRING): No need to call fix_string_type here.
	(primary:objc_string): Make that OBJC_STRING.
	(objc_string nonterminal): Delete.
	(yylexname): Delete code to handle fake string constants.
	(yylexstring): Delete entirely.
	(_yylex): Handle CPP_AT_NAME and CPP_OBJC_STRING.  No need
	to handle CPP_ATSIGN.

	* c.opt (-fexec-charset=, -fwide-exec-charset=): New options.
	* c-opts.c (missing_arg, c_common_handle_option): Handle
	OPT_fexec_charset_ and OPT_fwide_exec_charset_.
	(c_common_init): Set cpp_opts->bytes_big_endian, not
	cpp_opts->EBCDIC.  Call cpp_init_iconv.
	(print_help): Document -fexec-charset= and -fexec-wide-charset=.
	(TARGET_EBCDIC): Delete default definition.

	* objc/objc-act.c (build_objc_string_object): No need to
	handle string constant concatenation.

cp:
	* parser.c (cp_lexer_read_token): No need to handle string
	constant concatenation.

testsuite:
	* gcc.c-torture/execute/wchar_t-1.x: New file; XFAIL wchar_t-1.c
	everywhere.
	* gcc.dg/concat.c: Concatenation of string constants with
	__FUNCTION__ / __PRETTY_FUNCTION__ is now a hard error.
	* gcc.dg/wtr-strcat-1.c: Loosen dg-warning regexp.
	* gcc.dg/cpp/escape-2.c: Use wide character constants where
	necessary to avoid multi-character character constant warning.
	* gcc.dg/cpp/escape.c: Likewise.
	* gcc.dg/cpp/ucs.c: Likewise.
	Remove backslashes from dg-bogus comments, as they confuse Tcl.
	Fix a typo.

libstdc++-v3:
	* testsuite/22_locale/collate/compare/wchar_t/2.cc
	* testsuite/22_locale/collate/compare/wchar_t/wrapped_env.cc
	* testsuite/22_locale/collate/compare/wchar_t/wrapped_locale.cc
	* testsuite/22_locale/collate/hash/wchar_t/2.cc
	* testsuite/22_locale/collate/hash/wchar_t/wrapped_env.cc
	* testsuite/22_locale/collate/hash/wchar_t/wrapped_locale.cc
	* testsuite/22_locale/collate/transform/wchar_t/2.cc
	* testsuite/22_locale/collate/transform/wchar_t/wrapped_env.cc
	* testsuite/22_locale/collate/transform/wchar_t/wrapped_locale.cc:
	XFAIL on all targets.

From-SVN: r68952

	* c-opts.c (c_common_handle_option): s/on/value/.
	(OPT_fabi_version_, OPT_ftabstop_, OPT_ftemplate_depth_): Use value
	directly rather than converting the argument.
	* c.opt: Update docs.  Use UInteger where appropriate.
	* common.opt: Use UInteger where appropriate.
	* opts.c (integral_argument): New.
	(handle_argument): Handle integral arguments, and optional
	joined arguments.
	(common_handle_option): Update.
	* opts.h (CL_MISSING_OK, CL_UINTEGER): New.
	* opts.sh: Handle JoinedOrMissing and UInteger flags.
java:
	* lang.c (java_handle_option): Special-casing of optional
	joined arguments no longer needed.
	* lang.opt: Update switches that take optional argument.

From-SVN: r67999

	* c-opts.c (lang_flags): Update for new spelling of flags.
	(write_langs): Similarly.
	* c.opt: Specify languages.
	* opts.h: Remove languages.
	* opts.sh: Recognise front-end defined languages.
ada:
	* lang.opt: Declare Ada.
	* misc.c (gnat_init_options): Update.
doc:
	* sourcebuild.texi: Update.
f:
	* lang.opt: Declare F77.
java:
	* lang.opt: Declare Java.
	* lang.c (java_init_options): Update.
treelang:
	* lang.opt: Declare Treelang.  Update.
	* tree1.c (treelang_init_options): Update.

From-SVN: r67976

	* c-opts.c (CL_REJECT_NEGATIVE): New.
	(c_common_decode_option): Update to use it.
	* c.opt: Update documentation; use RejectNegative.
	* opts.sh: Handle RejectNegative.

From-SVN: r67325

	* Makefile.in (c-options.c, c-options.h): Parallel make safe.
	* c.opt: End in blank line.
	* opts.sh: Take AWK from environment if available; use C locale.

From-SVN: r67305

	* Makefile.in (c-opts.o, c-options.h): Update dependencies.
	* c-opts.c: Include c-options.h and c-options.c.
	(CL_C_ONLY, CL_OBJC_ONLY, CL_CXX_ONLY, CL_OBJCXX_ONLY):
	Rename CL_C, CL_OBJC, CL_CXX, CL_OBJCXX.
	(CL_ARG, CL_ALL, COMMAND_LINE_OPTIONS, struct cl_option,
	OPT, opt_comp): Remove.
	(missing_arg, c_common_init_options, c_common_decode_option,
	write_langs): Update for macro redefinitions and enumeration
	name changes.
	* c.opt, opts.sh: New files.
	* doc/passes.texi: Update.

From-SVN: r67278