* include/cpplib.h (struct cpp_options): Add new boolean flag
	warn_builtin_macro_redefined.
	* init.c (cpp_create_reader): Initialize warn_builtin_macro_redefined.
	* (struct builtin_operator): Split out from previous struct builtin,
	enhance extra const correctness.
	* (struct builtin_macro): Split out from previous struct builtin, add
	new always_warn_if_redefined flag, enhance const correctness.
	* (mark_named_operators): Use struct builtin_operator.
	* (cpp_init_special_builtins): Use struct builtin_macro, add NODE_WARN
	to builtins selectively.
	* macro.c (warn_of_redefinition): Return false if a builtin macro
	is not flagged with NODE_WARN.

	* c-opts.c (c_common_handle_option): Add handling for
	-Wbuiltin-macro-redefined command line option.
	* c.opt: Added builtin-macro-redefined option.
	* doc/invoke.texi (Warning Options): Add -Wbuiltin-macro-redefined
	documentation.

	* gcc.dg/builtin-redefine.c: New.

From-SVN: r140461

re PR c/30551 (-pedantic does not include -Wmain, but -pedantic-errors does make -Wmain cause error messages)

2008-08-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR 30551
	* doc/invoke.texi (Wmain): Update.
	* c-decl.c (start_decl): warn_main is only 0 or 1.
	(start_function): Likewise. Fix formatting.
	(finish_function): Delete redundant warning.
	* c.opt (Wmain): Add Var(warn_main) and Init(-1).
	* c-opts (c_common_handle_option): -Wall only has effect if
	warn_main is uninitialized. OPT_Wmain is automatically
	handled. -pedantic also enables Wmain.
	(c_common_post_options): Handle all logic for Wmain here.
	* c-common.c (warn_main): Delete.
	(check_main_parameter_types): Make pedwarns conditional on
	OPT_Wmain.
	* c-common.h (warn_main): Delete.
cp/	
	* decl.c (grokfndecl): Call check_main_parameters_type only if
	-Wmain.
testsuite/
	* gcc.dg/pr30551.c: New.
	* gcc.dg/pr30551-2.c: New.
	* gcc.dg/pr30551-3.c: New.
	* gcc.dg/pr30551-4.c: New.
	* gcc.dg/pr30551-5.c: New.
	* gcc.dg/pr30551-6.c: New.
	* gcc.dg/tree-ssa/reassoc-3.c: Don't compile with -pedantic-errors.
	* g++.dg/warn/pr30551.C: New.
	* g++.dg/warn/pr30551-2.C: New.

From-SVN: r139063

gcc/
	* omp-low.c (extract_omp_for_data): Fix comment typo.
	* c.opt: Fix typo.

gcc/cp/
	* parser.c: Fix comment typo.

From-SVN: r136804

        * c.opt (Wenum-compare): New warning option.
        * doc/invoke.texi (Warning Options): Document -Wenum-compare.

cp/
        * call.c (build_new_op): Make warning conditional on OPT_Wenum_compare.

testsuite/
        * g++.dg/warn/Wenum-compare.C: New testcase.
        * g++.dg/warn/Wenum-compare-no.C: Ditto.

From-SVN: r136035

gcc:
2008-05-26  Daniel Franke  <franke.daniel@gmail.com>

	PR fortran/18428
	* c.opt: Removed undocumented option '-lang-fortran'.
	* c-common.h: Removed global variable 'lang_fortran'.
	* c-opts.c (c_common_handle_option): Removed code to handle
	option '-lang-fortran'. Updated includes.
	* c-cppbuiltin.c (c_cpp_builtins): Removed conditional
	definition of '__GFORTRAN__'.
	(define__GNUC__): Reimplemented to use BASEVER and
	cpp_define_formatted.
	(builtin_define_with_value_n): Removed.
	* c-incpath.h: Renamed to ...
	* incpath.h: ... this.
	* c-incpath.c: Renamed to ...
	* incpath.c: ... this. Updated includes.
	* fix-header.c: Updated includes.
	* Makefile.in: Replaced c-incpath.[ch] by incpath.[ch].
	(c-cppbuiltin.o): Added dependency on and definition of BASEVER.
	(OBJ-archive): Added cppdefault.o, incpath.o and prefix.o.


gcc/cp:
2008-05-26  Daniel Franke  <franke.daniel@gmail.com>

	* Makefile.in: Adjusted dependencies on c-incpath.o.


gcc/fortran:
2008-05-26  Daniel Franke  <franke.daniel@gmail.com>

	PR fortran/18428
	* lang.opt (A, C, CC, D, E, H, P, U, cpp, d, fworking-directory,
	imultilib, iprefix, iquote, isysroot, isystem, nocpp, nostdinc,
	o, undef, v): New options.
	* options.c (gfc_init_options): Also initialize preprocessor
	options.
	(gfc_post_options): Also handle post-initialization of preprocessor
	options.
	(gfc_handle_option): Check if option is a preprocessor option.
	If yes, let gfc_cpp_handle_option() handle the option.
	* lang-specs.h: Reorganized to handle new options.
	* scanner.c (gfc_new_file): Read temporary file instead of
	input source if preprocessing is enabled.
	* f95-lang.c (gfc_init): Initialize preprocessor.
	(gfc_finish): Clean up preprocessor.
	* cpp.c: New.
	* cpp.h: New.
	* Make-lang.in: Added new objects and dependencies.
	* gfortran.texi: Updated section "Preprocessing and
	conditional compilation".
	* invoke.texi: Added new section "Preprocessing Options",
	listed and documented the preprocessing options handled by gfortran.

From-SVN: r135882

	* c.opt (Wimport): Mark as undocumented.
	* doc/invoke.texi (Option Summary): Don't mention -Wimport or
	-Wno-import.
	(Warning Options): Likewise.
	* doc/cppopts.texi: Don't mention -Wimport.

From-SVN: r135747

libcpp
	PR preprocessor/22168:
	* include/cpplib.h (struct cpp_options) <objc>: Update
	documentation.
	* expr.c (eval_token): Warn for use of assertions.
	* directives.c (directive_diagnostics): Warn about extensions.
	(DEPRECATED): New define.
	(DIRECTIVE_TABLE): Use it.
gcc
	PR preprocessor/22168:
	* doc/cpp.texi (Top): Update menu.
	(Alternatives to Wrapper #ifndef): New node.
	(Other Directives): Document deprecation.
	(Obsolete Features): Remove menu.
	(Assertions): Merge node into Obsolete Features.
	(Obsolete once-only headers): Move earlier; rename to Alternatives
	to Wrapper #ifndef.
	* doc/cppopts.texi: Update.
	* c.opt (Wdeprecated): Enable for C and ObjC.
	* doc/invoke.texi (Option Summary): Move -Wno-deprecated.
	(C++ Dialect Options): Move -Wno-deprecated from here to...
	(Warning Options): ... here.
gcc/testsuite
	PR preprocessor/22168:
	* gcc.dg/pch/import-2.hs: Add -Wno-deprecated.
	* gcc.dg/pch/import-1.hs: Add -Wno-deprecated.
	* gcc.dg/pch/import-2.c: Add -Wno-deprecated.
	* gcc.dg/pch/import-1.c: Add -Wno-deprecated.
	* gcc.dg/cpp/import2.c: Add -Wno-deprecated.
	* gcc.dg/cpp/import1.c: Add -Wno-deprecated.
	* gcc.dg/cpp/trad/assert3.c: Add -Wno-deprecated.
	* gcc.dg/cpp/trad/assert2.c: Add -Wno-deprecated.
	* gcc.dg/cpp/trad/assert1.c: Add -Wno-deprecated.
	* gcc.dg/cpp/ident.c: Add -Wno-deprecated.
	* gcc.dg/cpp/ident-1.c: Add -Wno-deprecated.
	* gcc.dg/cpp/extratokens.c: Add -Wno-deprecated.
	* gcc.dg/cpp/assert3.c: Add -Wno-deprecated.
	* gcc.dg/cpp/assert2.c: Add -Wno-deprecated.
	* gcc.dg/cpp/assert1.c: Add -Wno-deprecated.
	* gcc.dg/cpp/assert4.c: Compile with -ansi and not -pedantic.  Add
	-Wno-deprecated.
	* gcc.dg/cpp/pr22168.c: New file.
	* gcc.dg/cpp/pr22168-2.c: New file.

From-SVN: r135264

gcc/

	* c.opt (Wsynth): Deprecate.
	* doc/invoke.texi (Option Summary, Warning Options): Document
	-Wno-format-contains-nul.

gcc/fortran/

	* invoke.texi (Error and Warning Options): Document
	-Wline-truncation.

contrib/

	* check_warning_flags.sh: Instead of invoke.texi, take the path
	to the doc directory as argument.  Check that warnings listed in
	'gcc --help' are accepted by the compiler, and listed in the
	manuals.

From-SVN: r133059

2008-02-26  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR 34351
	* doc/invoke.texi (-Wall): Add -Wvolatile-register-var.
	* c-opts.c (c_common_handle_option): Wall enables
	Wvolatile-register-var.
	* common.opt: Move Wvolatile-register-var to...
	* c.opt: ...here.
testsuite/
	* gcc.dg/pr34351.c: New.

From-SVN: r132675

	PR 33738
	* tree-vrp.c (vrp_evaluate_conditional): With
	-Wtype-limits, emit a warning when comparing against a
	constant outside the natural range of OP0's type.
	* c.opt (Wtype-limits): Move ...
	* common.opt (Wtype-limits): ... here.

testsuite/ChangeLog

	PR 33738
	* g++.dg/warn/pr33738.C: New.

From-SVN: r132591

        PR other/31349
        * opts.c (undocumented_msg): Leave blank unless checking is
        enabled.
        (handle_options): Fix indentation.
        (print_filtered_help): If no language-specific options were
        displayed tell the user how to list all the options supported by
        the language's front-end.
        (print_specific_help): Fix indentation and remove duplicate line.
        (common_handle_option): Handle the -v option.
        For --help enable the display of undocumented options if the -v
        switch has been included on the command line.
        For --help= check for overlaps in the arguments between the option
        classes and the language names and issue a warning when they
        cannot be disambiguated.
        * c.opt (v): Pass on to the common option handler.

From-SVN: r132427

ChangeLog:

2008-01-12  Doug Kwan  <dougkwan@google.com>

	* c-decl.c: (grokdeclarator): Use OPT_Wignored_qualifiers
	instead of OPT_Wreturn_type in warning due to ignored return type
	qualifiers.
	* c-opt.c (c_common_post_option): Add -Wignored-qualifiers to
	options included in -Wextra.
	* c.opt: New option -Wignored_qualifiers.
	* doc/invoke.texi (Warning Options, -Wextra): Add new option
	-Wignore_qualifiers.
	(-Wignored-qualifiers): Document.
	(-Wreturn-type): Remove description of functionality now handled
	by -Wignored-qualifiers.

cp/ChangeLog:

2008-01-12  Doug Kwan  <dougkwan@google.com>

	* decl.c: (grokdeclarator): Use OPT_Wignored_qualifiers
	instead of OPT_Wreturn_type in warning due to ignored return type
	qualifiers.
	* pt.c: (tsubst_function_type): Use OPT_Wignored_qualifiers
	instead of OPT_Wreturn_type in warning due to ignored return type
	qualifiers.

testsuite/ChangeLog:

2008-01-12  Doug Kwan  <dougkwan@google.com>

	* gcc.dg/qual-return-1.c: Add -Wignored-qualifiers.
	* g++.dg/warn/Wreturn-type-4.C: Replace -Wreturn-type by
	-Wignored-qualifiers.

From-SVN: r131499

	libcpp/
	* directives-only.c: New file.
	* internal.h (struct _cpp_dir_only_callbacks): New.
	(_cpp_preprocess_dir_only): New function.
	* directives.c (_cpp_handle_directive): Check directives_only before
	disabling execution of indented directives.
	* files.c (_cpp_stack_file): Add directives_only check.
	* include/cpplib.h (struct cpp_options): Add directives_only.
	(cpp_init_special_builtins): New function.
	* init.c (cpp_init_special_builtins): New function.
	(cpp_init_builtins): Move builtin_array initialization to
	cpp_init_special_builtins.
	(post_options): Check directives_only before setting
	pfile->state.prevent_expansion = 1.
	* macro.c (_cpp_builtin_macro_text): Print an error if __COUNTER__
	is expanded inside a directive while -fdirectives-only is enabled.
	* Makefile.in (libcpp_a_OBJS): Add directives-only.o.
	(libcpp_a_SOURCES): Add directives-only.c.

	gcc/
	* c-ppoutput.c (print_lines_directives_only): New function.
	(scan_translation_unit_directives_only): New function.
	(preprocess_file): Add call to scan_translation_unit_directives_only.
	* c-opts.c (c_common_handle_option): Add OPT_fdirectives_only.
	(sanitize_cpp_opts): Add default flag_dump_macros setting for
	-fdirectives-only.  Add errors for -fdirectives-only conflict with
	-Wunused-macros and -traditional.
	(finish_options): Add builtin macro initialization for
	-fdirectives-only + -fpreprocessed.
	* c.opt (fdirectives-only): New.
	* doc/cppopts.texi (fdirectives-only): New.

	gcc/testsuite/
	* gcc.dg/cpp/counter-2.c: New test.
	* gcc.dg/cpp/counter-3.c: New test.
	* gcc.dg/cpp/dir-only-1.c: New test.
	* gcc.dg/cpp/dir-only-1.h: New file.
	* gcc.dg/cpp/dir-only-2.c: New test.
	* gcc.dg/cpp/dir-only-3.c: New test.
	* gcc.dg/cpp/dir-only-3a.h: New file.
	* gcc.dg/cpp/dir-only-3b.h: New file.
	* gcc.dg/cpp/dir-only-4.c: New test.
	* gcc.dg/cpp/dir-only-5.c: New test.
	* gcc.dg/cpp/dir-only-6.c: New test.

From-SVN: r127066

Change copyright header to refer to version 3 of the GNU General Public License and to point readers at the COPYING3 file and the FSF's license web page.

From-SVN: r126948

2007-06-21  Geoffrey Keating  <geoffk@apple.com>

	* doc/invoke.texi (C++ Dialect Options): Document
	fvisibility-ms-compat.
	* c.opt (fvisibility-ms-compat): New.

Index: gcc/cp/ChangeLog
2007-06-21  Geoffrey Keating  <geoffk@apple.com>

	* decl2.c (determine_visibility): Implement
	flag_visibility_ms_compat effect on type info.
	* decl.c (cxx_init_decl_processing): Implement
	global effect of flag_visibility_ms_compat.

Index: gcc/testsuite/ChangeLog
2007-06-26  Geoffrey Keating  <geoffk@apple.com>

	* g++.dg/ext/visibility/ms-compat-1.C: New.

From-SVN: r126088

2007-05-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
	
	PR middle-end/7651
	PR c++/11856
	PR c/12963
	PR c/23587
	PR other/29694
	* c.opt (Wtype-limits): New.
	* doc/invoke.texi (Wtype-limits): Document it.
	(Wextra): Enabled by -Wextra.
	* c-opts.c (c_common_post_options): Enabled by -Wextra.
	* c-common.c (shorten_compare): Warn with Wtype-limits.

testsuite/
	* gcc.dg/compare6.c: Replace Wall with Wtype-limits.
	* gcc.dg/Wtype-limits.c: New.
	* gcc.dg/Wtype-limits-Wextra.c: New.
	* gcc.dg/Wtype-limits-no.c: New.
	* g++.dg/warn/Wtype-limits.C: New.
	* g++.dg/warn/Wtype-limits-Wextra.C: New.
	* g++.dg/warn/Wtype-limits-no.C: New.

From-SVN: r124875

2007-05-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	* doc/invoke.texi (Warning Options): Add -Wconversion-sign.
	(Wconversion): Update description.
	(Wconversion-sign): New.
	* c.opt (Wconversion-sign): New.
	* c-opts.c (c_common_post_options): Uninitialized Wconversion-sign
	means disabled for C++. Otherwise, take the status of Wconversion.
	* c-common.c (conversion_warning): Warn with either Wconversion or
	Wconversion-sign.
	(warnings_for_convert_and_check): Conditions are already checked by
	conversion_warning.
	(convert_and_check): Don't check warnings if the conversion failed.

cp/
	* cvt.c (cp_convert_and_check): Don't check warnings if the
	conversion failed.

testsuite/
	* gcc.dg/Wconversion-integer.c: Group testcases and add more.
	* gcc.dg/Wconversion-sign.c: New.
	* gcc.dg/Wconversion-integer-no-sign.c: New.
	* g++.dg/warn/Wconversion-integer.C: Move some warnings to
	Wconversion-sign.C
	* g++.dg/warn/Wconversion-sign.C: New.
	* g++.old-deja/g++.other/warn4.C: Update.
	* g++.dg/warn/Wconversion1.C: Likewise.

From-SVN: r124856

2007-05-04  Dirk Mueller  <dmueller@suse.de>

        * c.opt(Wmain,ffreestanding): Enable for C++,ObjC++.

        * cp-tree.h (DECL_MAIN_P): only if -ffreestanding is
        not in effect.

From-SVN: r124404

From-SVN: r124063

./:	* doc/invoke.texi (Debugging Options): Add documentation for the
	-femit-struct-debug options -femit-struct-debug-baseonly,
	-femit-struct-debug-reduced, and
	-femit-struct-debug-detailed[=...].

	* c-opts.c (c_common_handle_option): Add
	OPT_femit_struct_debug_baseonly, OPT_femit_struct_debug_reduced,
	and OPT_femit_struct_debug_detailed_.
	* c.opt: Add specifications for
	-femit-struct-debug-baseonly, -femit-struct-debug-reduced,
	and -femit-struct-debug-detailed[=...].
	* opts.c (set_struct_debug_option): Parse the
	-femit-struct-debug-... options.
	* opts.c (matches_main_base, main_input_basename,
	main_input_baselength, base_of_path, matches_main_base): Add
	variables and functions to compare header base name to compilation
	unit base name.
	* opts.c (should_emit_struct_debug): Add to determine to emit a
	structure based on the option.
	(dump_struct_debug) Also disabled function to debug this
	function.
	* opts.c (handle_options): Save the base name of the
	compilation unit.

	* langhooks-def.h (LANG_HOOKS_GENERIC_TYPE_P): Define.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Add.
	This hook indicates if a type is generic.  Set it by default
	to "never generic".
	* langhooks.h (struct lang_hooks_for_types): Add a new hook
	to determine if a struct type is generic or not.
	* cp/cp-tree.h (class_tmpl_impl_spec_p): Declare a C++ hook.
	* cp/tree.c (class_tmpl_impl_spec_p): Implement the C++ hook.
	* cp/cp-lang.c (LANG_HOOKS_GENERIC_TYPE_P): Override null C hook
	with live C++ hook.

	* flags.h (enum debug_info_usage): Add an enumeration to describe
	a program's use of a structure type.
	* dwarf2out.c (gen_struct_or_union_type_die): Add a new parameter
	to indicate the program's usage of the type.  Filter structs based
	on the -femit-struct-debug-... specification.
	(gen_type_die): Split into two routines, gen_type_die and
	gen_type_die_with_usage.  gen_type_die is now a wrapper
	that assumes direct usage.
	(gen_type_die_with_usage): Replace calls to gen_type_die
	with gen_type_die_with_usage adding the program usage of
	the referenced type.
	(dwarf2out_imported_module_or_decl): Suppress struct debug
	information using should_emit_struct_debug when appropriate.
testsuite/:
	* g++.dg/other/fesd-any.C: Test -femit-struct-debug-detailed=any.
	* g++.dg/other/fesd-any.h: Test -femit-struct-debug-detailed=any.
	* g++.dg/other/fesd-baseonly.C: Test -femit-struct-debug-baseonly.
	* g++.dg/other/fesd-baseonly.h: Test -femit-struct-debug-baseonly.
	* g++.dg/other/fesd-none.C: Test -femit-struct-debug-detailed=none.
	* g++.dg/other/fesd-none.h: Test -femit-struct-debug-detailed=none.
	* g++.dg/other/fesd-reduced.C: Test -femit-struct-debug-reduced.
	* g++.dg/other/fesd-reduced.h: Test -femit-struct-debug-reduced.
	* g++.dg/other/fesd-sys.C: Test -femit-struct-debug-detailed=sys.
	* g++.dg/other/fesd-sys.h: Test -femit-struct-debug-detailed=sys.
	* g++.dg/other/fesd.h: Common to -femit-struct-debug-... tests.

	* gcc.dg/fesd-any.c: Test -femit-struct-debug-detailed=any.
	* gcc.dg/fesd-any.h: Test -femit-struct-debug-detailed=any.
	* gcc.dg/fesd-baseonly.c: Test -femit-struct-debug-baseonly.
	* gcc.dg/fesd-baseonly.h: Test -femit-struct-debug-baseonly.
	* gcc.dg/fesd-none.c: Test -femit-struct-debug-detailed=none.
	* gcc.dg/fesd-none.h: Test -femit-struct-debug-detailed=none.
	* gcc.dg/fesd-reduced.c: Test -femit-struct-debug-reduced.
	* gcc.dg/fesd-reduced.h: Test -femit-struct-debug-reduced.
	* gcc.dg/fesd-sys.c: Test -femit-struct-debug-detailed=sys.
	* gcc.dg/fesd-sys.h: Test -femit-struct-debug-detailed=sys.
	* gcc.dg/fesd.h: Common to -femit-struct-debug-... tests.

From-SVN: r123909

From-SVN: r123640

From-SVN: r123114

ChangeLog:

2007-03-12  Seongbae Park <seongbae.park@gmail.com>

	* gcc/doc/invoke.texi (Wvla): New warning.

gcc/ChangeLog:

2007-03-12  Seongbae Park <seongbae.park@gmail.com>

	* c-decl.c (warn_variable_length_array): New function.
	Refactored from grokdeclarator to handle warn_vla
	and handle unnamed array case.
	(grokdeclarator): Refactored VLA warning case.
	* c.opt (Wvla): New flag.

gcc/cp/ChangeLog:

2007-03-12  Seongbae Park <seongbae.park@gmail.com>

	* decl.c (compute_array_index_type): New warning flag warn_vla.

gcc/testsuite/ChangeLog:

2007-03-12  Seongbae Park <seongbae.park@gmail.com>

 	* gcc.dg/wvla-1.c: New test
 	* gcc.dg/wvla-2.c: New test
 	* gcc.dg/wvla-3.c: New test
 	* gcc.dg/wvla-4.c: New test
 	* gcc.dg/wvla-5.c: New test
 	* gcc.dg/wvla-6.c: New test
 	* gcc.dg/wvla-7.c: New test
	* g++.dg/warn/Wvla-1.C: New test
	* g++.dg/warn/Wvla-2.C: New test
	* g++.dg/warn/Wvla-3.C: New test

From-SVN: r122851

	* c.opt (fgnu89-inline): New option.
	* c-opts.c (c_common_post_options): Set default value for
	flag_gnu89_inline.
	* c-decl.c (WANT_C99_INLINE_SEMANTICS): Remove.
	(pop_scope): Check flag_gnu89_inline rather than flag_isoc99 for
	inline functions.
	(diagnose_mismatched_decls, merge_decls, start_decl): Likewise.
	(grokdeclarator, start_function): Likewise.
	* c-cppbuiltin.c (c_cpp_builtins): Define either
	__GNUC_GNU_INLINE__ or __GNUC_STDC_INLINE__.
	* doc/invoke.texi (Option Summary): Mention -fgnu89-inline.
	(C Dialect Options): Document -fgnu89-inline.
	* doc/extend.texi (Function Attributes): Explain what the
	gnu_inline attribute does.
	* doc/cpp.texi (Common Predefined Macros): Document
	__GNUC_GNU_INLINE__ and __GNUC_STDC_INLINE__.

From-SVN: r122565

* common.opt (Warray-bounds): Add Warning attribute.
  (Wstrict-overflow, Wstrict-overflow=, Wcoverage-mismatch): Likewise.
  (fsized-zeroes): Add Optimization attribute.
  (fsplit-wide-types, ftree-scev-cprop): Likewise.
* c.opt (Wc++0x-compat): Add Warning attribute.

From-SVN: r122200

2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	* c.opt (Waddress): New.
	* common.opt (Walways-true): Delete.
	(Wstring-literal-comparison): Delete.
	* doc/invoke.texi (Warning Options): Delete -Walways-true and
	-Wstring-literal-comparison. Add -Waddress.
	(Waddress): New.
	(Walways-true): Delete.
	(Wstring-literal-comparison): Delete.
	* doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
	consistently instead of -Walways-true in example.
	* c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
	* c-typeck.c (parser_build_binary_op): Replace
	-Wstring-literal-comparison and -Walways-true with -Waddress.
	* c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
	with -Waddress.

cp/
	* typeck.c (build_binary_op): Replace -Wstring-literal-comparison
	and -Walways-true with -Waddress.
	* cvt.c (convert_to_void): Replace unconditional warning with
	-Waddress.

testsuite/
	* gcc.dg/20031012-1.c: Replace -Walways-true with -Waddress.
	* gcc.dg/Walways-true-1.c: Likewise.
	* gcc.dg/weak/weak-3.c: Likewise.
	* gcc.dg/Werror-1.c: Likewise.
	* gcc.dg/Werror-3.c: Likewise.
	* gcc.dg/Werror-4.c: Likewise.
	* gcc.dg/Werror-5.c: Likewise.
	* gcc.dg/Werror-6.c: Likewise.
	* gcc.dg/Werror-7.c: Likewise.
	* gcc.dg/Werror-8.c: Likewise.
	* gcc.dg/Werror-10.c: Likewise.
	* gcc.dg/Werror-11.c: Likewise.
	* gcc.dg/Werror-12.c: Likewise.
	* g++.old-deja/g++.mike/warn8.C: Likewise.
	* g++.dg/warn/Walways-true-1.C: Likewise.
	* g++.dg/warn/Walways-true-2.C: Likewise.
	* g++.dg/warn/noeffect8.C: Warn only with -Waddress.
	* g++.dg/warn/Wstring-literal-comparison-1.C: Replace
	-Wstring-literal-comparison with -Waddress.
	* gcc.dg/Wstring-literal-comparison-4.c: Replace
	-Wno-string-literal-comparison with -Wno-address.

From-SVN: r122136

2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR c/26494
	* doc/invoke.texi (Warning Options): Remove
	-Werror-implicit-function-declaration.
	(Wimplicit-function-declaration): Update description.
	* opts.c (common_handle_option): Move handling of -Werror=* to...
	(enable_warning_as_error): ...here.
	* opts.h (enable_warning_as_error): Declare.
	* c-decl.c (implicit_decl_warning): Unless
	-Wno-implicit-function-declaration is given, emit a pedwarn if
	-std=c99 or emit a warning if -Wimplicit-function-declaration.
	* c.opt (Wimplicit-function-declaration): Replace
	mesg_implicit_function_declaration with
	warn_implicit_function_declaration.
	* c-opts.c (c_common_handle_option):
	-Werror-implicit-function-declaration is exactly equal as
	-Werror=implicit-function-declaration.
	(set_Wimplicit): Replace mesg_implicit_function_declaration with
	warn_implicit_function_declaration.
	(c_common_post_options): -Wimplict-function-declaration is enabled
	by default by -std=c99, otherwise is disabled by default.
	* c-objc-common.c (c_objc_common_init): Remove flawed logic.
testsuite/
	* gcc.dg/Wimplicit-function-declaration-c89.c: New.
	* gcc.dg/Wimplicit-function-declaration-c89-default.c: New.
	* gcc.dg/Wimplicit-function-declaration-c89-pedantic.c: New.
	* gcc.dg/Wimplicit-function-declaration-c99.c: New.
	* gcc.dg/Wimplicit-function-declaration-c99-pedantic.c: New.
	* gcc.dg/Werror-implicit-function-declaration.c: New.

From-SVN: r122017

* doc/invoke.texi (Overall Options): Document --help=.                                                        
* gcc.c (target_help_flag): Rename to print_subprocess_flag.                                                  
  (cc1_options): Pass --help= on to cc1.                                                                      
  (display_help): Add description of --help=.                                                                 
  (process_command): Add code to handle --help=.  Allow translated                                            
  --help and --target-help switches to be passed on to compiler sub-process.                                                                                               
  (main): Remove unused if statement.                                                                         
* opts.c (columns): Remove.                                                                                   
  (LEFT_COLUMN): Define.                                                                                      
  (wrap_help): Add columns argument.                                                                          
  (print_filtered_help): Change parameters to be an include bitmask,                                          
  an exclude bitmask, an any bitmask and the column width.  Move the                                          
  code to display the params list here.  Add code to display the                                              
  status of options rather than their descriptions if the quiet flag                                          
  is not active.                                                                                              
  (print_specific_help): Change parameters to be an include bitmask,                                          
  an exclude bitmask and an any bitmask.  Move code to look up the                                            
  column width here.  Decide upon the title for an options listing.                                           
  (common_handle_options): Add code to handle --help=.  Adapt code                                            
  for --help and --target-help to use the revised form of the                                                 
  print_specific_help function.                                                                               
  (print_help): Delete.                                                                                       
  (print_param_help): Delete.                                                                                 
  (print_switch): Delete.                                                                                     
* opts.h (cl_lang_count): Add prototype.                                                                      
 (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS, CL_MAX_OPTION_CLASS): New defines.            
* optc-gen.awk: Add construction of cl_lang_count.                                                            
* c.opt: Add Warning attribute to warning options and Optimization attribute to optimization options.         
* common.opt: Likewise.                                                                                       
  Add --help=.                                                                                                
  Add -fhelp and -ftarget-help as aliases for the transformed --help and --target-help options.               
* opt-functions.awk: Add code to handle Warning and Optimization attributes.

From-SVN: r121849

2007-01-24  Douglas Gregor  <dgregor@osl.iu.edu>

	* c-common.h (RID_FIRST_CXX0X): New.
	(RID_LAST_CXX0X): New.
	* c-opts.c (c_common_handle_option): -Wc++0x-compat is triggered
	by -Wall.
	* c.opt (Wc++0x-compat): New.
	* doc/invoke.texi (-Wc++0x-compat): Document.

From-SVN: r121162

	gcc/
	* c.opt: Add -flax-vector-conversions.
	* c-typeck.c (convert_for_assignment): Pass flag to
	vector_types_convertible_p to allow emission of note.
	(digest_init): Likewise.
	(comptypes_internal): Use vector_types_convertible_p.
	* c-opts.c: Handle -flax-vector-conversions.
	* c-common.c (flag_lax_vector_conversions): New.
	(vector_types_convertible_p): Unless -flax-vector conversions
	has been passed, disallow conversions between vectors with
	differing numbers of subparts and/or element types.  If such
	a conversion is disallowed, possibly emit a note on the first
	occasion only to inform the user of -flax-vector-conversions.
	The new last argument specifies this.
	* c-common.h (flag_lax_vector_conversions): New.
	(vector_types_convertible_p): Add extra argument.
	* config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
	char_type_node for V*QI type vectors.
	* config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
	Update to satisfy new typechecking rules.
	* config/rs6000/altivec.h (vec_cmple): Use vec_cmpge.
	* doc/invoke.texi (C Dialect Options): Document
	-flax-vector-conversions.

	gcc/cp/
	* call.c (standard_conversion): Pass flag to
	vector_types_convertible_p to disallow emission of note.
	* typeck.c (convert_for_assignment): Pass flag to
	vector_types_convertible_p to allow emission of note.
	(ptr_reasonably_similar): Pass flag to vector_types_convertible_p
	to disallow emission of note.

	gcc/testsuite/
	* gcc.target/i386/20020531-1.c: Use "char" not "unsigned char"
	in __v8qi typedef.
	* gcc.target/powerpc/altivec-vec-merge.c (foo): Add casts.
	* gcc.dg/simd-1.c: Update dg-error directives to reflect new
	compiler behaviour.
	* gcc.dg/simd-5.c: Likewise.
	* gcc.dg/simd-6.c: Likewise.
	* g++.dg/conversion/simd1.C: Likewise.
	* g++.dg/conversion/simd3.C: Likewise.
	* g++.dg/ext/attribute-test-2.C (data): Add "vs" member.
	(main): Use it.

From-SVN: r120572

2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR middle-end/7651
	* c.opt (Wold-style-declaration): New.
	* doc/invoke.texi (C-only Warning Options): New.
	(Wold-style-declaration): Document it.
	(Wextra): Enabled by -Wextra.
	* c-opts.c (c_common_post_options): Enabled by -Wextra.
	* c-decl.c (declspecs_add_scspec): Replace -Wextra with
	-Wold-style-declaration.

testsuite/
	* gcc.dg/declspec-3.c: Replace -W with -Wold-style-declaration.
	* gcc.dg/declspec-3-Wextra.c: New.
	* gcc.dg/declspec-3-no.c: New

From-SVN: r120347

2006-12-23  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR middle-end/7651
	* c.opt (Wmissing-parameter-type): New.
	* doc/invoke.texi (Wmissing-parameter-type): Document it.
	(Wextra): Enabled by -Wextra.
	* c-opts.c (c_common_post_options): Enabled by -Wextra.
	* c-decl.c (store_parm_decls_oldstyle): Replace Wextra with
	Wmissing-parameter-type.
	
testsuite/

	* gcc.dg/Wmissing-parameter-type.c: New.
	* gcc.dg/Wmissing-parameter-type-Wextra.c: New.
	* gcc.dg/Wmissing-parameter-type-no.c: New.

From-SVN: r120173

2006-12-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR middle-end/7651
	* c.opt (Wclobbered): New.
	* doc/invoke.texi (Wclobbered): Document it.
	(Wextra): Enabled by -Wextra.
	* c-opts.c (c_common_post_options): Enabled by -Wextra.
	* flow.c (rest_of_handle_life): Replace Wextra with Wclobbered.
	* function.c (setjmp_vars_warning): Only warn for Wclobbered.
	(setjmp_args_warning): Likewise.

testsuite/

	* gcc.dg/attr-returns_twice-1.c: Replace Wextra with Wclobbered.
	* gcc.dg/setjmp-1.c: Add explicit Wclobbered.

From-SVN: r120151

./:	* c.opt (Wmissing-declarations): Add C++ and ObjC++.
	* doc/invoke.texi (Warning Options): -Wmissing-declarations now
	works for C++.
cp/:
	* decl.c (start_preparsed_function): Add support for
	-Wmissing-declarations.
testsuite:
	* g++.dg/warn/Wmissing-declarations-1.C: New test.

From-SVN: r120012

2006-12-16  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR middle-end/7651
	* c.opt (Wempty-body): New.
	* doc/invoke.texi (Wempty-body): Document it.
	(Wextra): Enabled by -Wextra.
	* c-opts.c (c_common_post_options): Enabled by -Wextra.
	* c-common.c (empty_body_warning): Replace Wextra with Wempty-body.
	* c-parser.c (c_parser_c99_block_statement): Likewise.
testsuite/
	* gcc.dg/20001116-1.c: Replace -Wextra with -Wempty-body.
	* gcc.dg/if-empty-1.c: Likewise.
	* gcc.dg/pr23165.c: Likewise.
	* g++.dg/warn/empty-body.C: Likewise.

From-SVN: r119963

* c.opt: Remove -ffixed-form, -ffixed-line-length-none, and
-ffixed-line-length-* options.

From-SVN: r119206

2006-11-23  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR c/9072 
	* c.opt (Wtraditional-conversion): New.
	(Wconversion): Update description.
	* c-typeck.c (convert_arguments): Warnings for prototypes causing
	type conversions different from what would happen in the absence
	of prototype are now handled by Wtraditional-conversion.
	* doc/invoke.texi (Wtraditional-conversion): New.
	(Wconversion): Update description.
	* doc/trouble.texi (Wconversion): Replace Wconversion by
	Wtraditional-conversion.

testsuite/

	PR c/9072 
	* gcc.dg/builtin-protos-1.c: Replace Wconversion by
	Wtraditional-conversion.
	* gcc.dg/overflow-warn-2.c: Likewise.
	* gcc.dg/Wconversion.c: Likewise. Renamed as
	Wtraditional-conversion.c .
	* gcc.dg/Wconversion-2.c: Likewise. Renamed as
	Wtraditional-conversion-2.c .
	* gcc.dg/dfp/Wconversion-2.c: Likewise. Renamed as
	Wtraditional-conversion-2.c 
	* gcc.dg/Wconversion-negative-constants.c: New.

From-SVN: r119129

2006-11-01	Douglas Gregor <doug.gregor@gmail.com>

	* c-common.c (flag_cpp0x): New.
	* c-common.h (flag_cpp0x): New.
	* c-cppbuiltin.c (c_cpp_builtins): If C++0x extensions are
	supported, define __GXX_EXPERIMENTAL_CPP0X__.
	* c-opts.c (set_std_cxx0x): New.
	(c_common_handle_option): Handle -std=c++0x, -std=gnu++0x.
	* c.opt (std=c++0x): Document.
	(std=gnu++0x): Ditto.
	* doc/cpp.texi: Document __GXX_EXPERIMENTAL_CPP0X__.
	* doc/invoke.texi: Document -std=c++0x, -std=gnu++0x.

From-SVN: r118386

	PR c/24010
	* c.opt (Woverride-init): New.
	* c-opts.c (c_common_post_options): Default warn_override_init to
	extra_warnings.
	* c-typeck.c (add_pending_init, output_init_element): Warn for
	overriding initializers without side effects.
	* doc/invoke.texi (-Woverride-init): Document.
	(-Wextra): Update.

testsuite:
	* gcc.dg/Woverride-init-1.c, gcc.dg/Woverride-init-2.c,
	gcc.dg/Woverride-init-3.c: New tests.

From-SVN: r117334

From-SVN: r113893