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RFA: Combined switch handling, take 3


This takes into accout Joseph's and Fergus' comments.

I'd really appreciate this being reviewed; there are other things I'd
like to do as a follow-on, and my understanding is that Aug 15th is
a deadline for this kind of work.

Bootstrapped x86 Linux.

Thanks,

Neil.

	* Makefile.in (c-opts.o, c-common.o, C_AND_OBJC_OBJS): Update.
	* c-common.c: Don't include tree-inline.h.
	(c_common_init_options, c_common_post_options): Move to c-opts.c.
	* c-common.h (c_common_decode_option): New.
	* c-decl.c (c_decode_option): Remove.
	* c-lang.c (LANG_HOOKS_DECODE_OPTION): Use c_common_decode_option.
	* c-opts.c: New file.
	* c-tree.h (c_decode_option): Remove.
	* doc/passes.texi: Update.
	* objc/objc-act.c (objc_decode_option): Remove.
	* objc/objc-act.h (objc_decode_option): Remove.
	* objc/ojbc-lang.c (LANG_HOOKS_DECODE_OPTION): Use
	c_common_decode_option.
cp:
	* Make-lang.in (CXX_C_OBJS): Update.
	* cp-lang.c (LANG_HOOKS_DECODE_OPTION): Use c_common_decode_option.
	* cp-tree.h (cxx_decode_option): Remove.
	* decl2.c (compare_options, lang_f_options, unsupported_options,
	cxx_decode_option): Remove.
testsuite:
	* objc.dg/const-str-2.m: Update.
	* gcc.dg/cpp/c++98.c: Change to C extension.
	* gcc.dg/cpp/c++98-pedantic.c: Similarly.
	* gcc.dg/cpp/cpp.exp: Process .C extensions too.

============================================================
Index: gcc/Makefile.in
--- gcc/Makefile.in	4 Aug 2002 22:45:18 -0000	1.924
+++ gcc/Makefile.in	5 Aug 2002 06:42:27 -0000
@@ -714,7 +714,7 @@ CXX_TARGET_OBJS=@cxx_target_objs@
 
 # Language-specific object files for C and Objective C.
 C_AND_OBJC_OBJS = attribs.o c-errors.o c-lex.o c-pragma.o c-decl.o c-typeck.o \
-  c-convert.o c-aux-info.o c-common.o c-format.o c-semantics.o \
+  c-convert.o c-aux-info.o c-common.o c-opts.o c-format.o c-semantics.o \
   c-objc-common.o c-dump.o libcpp.a $(C_TARGET_OBJS)
 
 # Language-specific object files for C.
@@ -1229,9 +1229,12 @@ s-under: $(GCC_PASSES)
 c-common.o : c-common.c $(CONFIG_H) $(SYSTEM_H) $(TREE_H) $(OBSTACK_H) \
 	$(C_COMMON_H) flags.h toplev.h output.h c-pragma.h $(RTL_H) $(GGC_H) \
 	$(EXPR_H) $(TM_P_H) builtin-types.def builtin-attrs.def $(TARGET_H) \
-	diagnostic.h tree-inline.h except.h gt-c-common.h real.h langhooks.h
+	diagnostic.h except.h gt-c-common.h real.h langhooks.h
 c-pretty-print.o : c-pretty-print.c c-pretty-print.h pretty-print.h \
 	$(C_COMMON_H) $(CONFIG_H) $(SYSTEM_H) real.h
+
+c-opts.o : c-opts.c $(CONFIG_H) $(SYSTEM_H) $(TREE_H) $(C_COMMON_H) \
+        c-pragma.h flags.h toplev.h langhooks.h tree-inline.h diagnostic.h
 
 # A file used by all variants of C and some other languages.
 
============================================================
Index: gcc/c-common.c
--- gcc/c-common.c	2 Aug 2002 04:18:16 -0000	1.359
+++ gcc/c-common.c	5 Aug 2002 06:42:28 -0000
@@ -31,7 +31,6 @@ Software Foundation, 59 Temple Place - S
 #include "ggc.h"
 #include "expr.h"
 #include "c-common.h"
-#include "tree-inline.h"
 #include "diagnostic.h"
 #include "tm_p.h"
 #include "obstack.h"
@@ -4646,73 +4645,6 @@ boolean_increment (code, arg)
   return val;
 }
 
-/* Common initialization before parsing options.  */
-void
-c_common_init_options (lang)
-     enum c_language_kind lang;
-{
-  c_language = lang;
-  parse_in = cpp_create_reader (lang == clk_c || lang == clk_objective_c
-				? CLK_GNUC89 : CLK_GNUCXX);
-  if (lang == clk_objective_c)
-    cpp_get_options (parse_in)->objc = 1;
-
-  flag_const_strings = (lang == clk_cplusplus);
-  warn_pointer_arith = (lang == clk_cplusplus);
-  if (lang == clk_c)
-    warn_sign_compare = -1;
-
-  /* Mark as "unspecified" (see c_common_post_options).  */
-  flag_bounds_check = -1;
-}
-
-/* Post-switch processing.  */
-bool
-c_common_post_options ()
-{
-  cpp_post_options (parse_in);
-
-  flag_inline_trees = 1;
-
-  /* Use tree inlining if possible.  Function instrumentation is only
-     done in the RTL level, so we disable tree inlining.  */
-  if (! flag_instrument_function_entry_exit)
-    {
-      if (!flag_no_inline)
-	flag_no_inline = 1;
-      if (flag_inline_functions)
-	{
-	  flag_inline_trees = 2;
-	  flag_inline_functions = 0;
-	}
-    }
-
-  /* If still "unspecified", make it match -fbounded-pointers.  */
-  if (flag_bounds_check == -1)
-    flag_bounds_check = flag_bounded_pointers;
-
-  /* Special format checking options don't work without -Wformat; warn if
-     they are used.  */
-  if (warn_format_y2k && !warn_format)
-    warning ("-Wformat-y2k ignored without -Wformat");
-  if (warn_format_extra_args && !warn_format)
-    warning ("-Wformat-extra-args ignored without -Wformat");
-  if (warn_format_zero_length && !warn_format)
-    warning ("-Wformat-zero-length ignored without -Wformat");
-  if (warn_format_nonliteral && !warn_format)
-    warning ("-Wformat-nonliteral ignored without -Wformat");
-  if (warn_format_security && !warn_format)
-    warning ("-Wformat-security ignored without -Wformat");
-  if (warn_missing_format_attribute && !warn_format)
-    warning ("-Wmissing-format-attribute ignored without -Wformat");
-
-  /* If an error has occurred in cpplib, note it so we fail
-     immediately.  */
-  errorcount += cpp_errors (parse_in);
-
-  return flag_preprocess_only;
-}
-
 /* Hook that registers front end and target-specific built-ins.  */
 static void
 cb_register_builtins (pfile)
============================================================
Index: gcc/c-common.h
--- gcc/c-common.h	1 Aug 2002 06:20:30 -0000	1.147
+++ gcc/c-common.h	5 Aug 2002 06:42:29 -0000
@@ -851,6 +851,7 @@ extern tree handle_format_attribute		PAR
 extern tree handle_format_arg_attribute		PARAMS ((tree *, tree, tree,
 							 int, bool *));
 extern void c_common_insert_default_attributes	PARAMS ((tree));
+extern int c_common_decode_option		PARAMS ((int, char **));
 extern tree c_common_type_for_mode		PARAMS ((enum machine_mode,
 							 int));
 extern tree c_common_type_for_size		PARAMS ((unsigned int, int));
============================================================
Index: gcc/c-decl.c
--- gcc/c-decl.c	1 Aug 2002 06:20:30 -0000	1.344
+++ gcc/c-decl.c	5 Aug 2002 06:42:31 -0000
@@ -295,268 +295,6 @@ enum deprecated_states {
 
 static enum deprecated_states deprecated_state = DEPRECATED_NORMAL;
 
-/* Decode the string P as a language-specific option for C.
-   Return the number of strings consumed.  Should not complain
-   if it does not recognise the option.  */
-
-int
-c_decode_option (argc, argv)
-     int argc ATTRIBUTE_UNUSED;
-     char **argv;
-{
-  int strings_processed;
-  char *p = argv[0];
-
-  static const struct {
-      /* The name of the option.  */
-      const char *option;
-      /* A pointer to a flag variable to set to 0 or 1.  */
-      int *flag;
-  } warn_options[] = {
-    /* This list is in alphabetical order.  Keep it like that.  */
-    { "bad-function-cast", &warn_bad_function_cast },
-    { "cast-qual", &warn_cast_qual },
-    { "char-subscripts", &warn_char_subscripts },
-    { "conversion", &warn_conversion },
-    { "div-by-zero", &warn_div_by_zero },
-    { "float-equal", &warn_float_equal },
-    { "format-extra-args", &warn_format_extra_args },
-    { "format-zero-length", &warn_format_zero_length },
-    { "format-nonliteral", &warn_format_nonliteral },
-    { "format-security", &warn_format_security },
-    { "format-y2k", &warn_format_y2k },
-    { "implicit-function-declaration", &mesg_implicit_function_declaration },
-    { "implicit-int", &warn_implicit_int },
-    { "long-long", &warn_long_long },
-    { "main", &warn_main },
-    { "missing-braces", &warn_missing_braces },
-    { "missing-declarations", &warn_missing_declarations },
-    { "missing-format-attribute", &warn_missing_format_attribute },
-    { "missing-prototypes", &warn_missing_prototypes },
-    { "multichar", &warn_multichar },
-    { "nested-externs", &warn_nested_externs },
-    { "nonnull", &warn_nonnull },
-    { "parentheses", &warn_parentheses },
-    { "pointer-arith", &warn_pointer_arith },
-    { "redundant-decls", &warn_redundant_decls },
-    { "return-type", &warn_return_type },
-    { "sequence-point", &warn_sequence_point },
-    { "sign-compare", &warn_sign_compare },
-    { "strict-prototypes", &warn_strict_prototypes },
-    { "traditional", &warn_traditional },
-    { "write-strings", &flag_const_strings }
-  };
-
-  strings_processed = cpp_handle_option (parse_in, argc, argv);
-
-  if (!strcmp (p, "-fhosted") || !strcmp (p, "-fno-freestanding"))
-    {
-      flag_hosted = 1;
-      flag_no_builtin = 0;
-    }
-  else if (!strcmp (p, "-ffreestanding") || !strcmp (p, "-fno-hosted"))
-    {
-      flag_hosted = 0;
-      flag_no_builtin = 1;
-      /* warn_main will be 2 if set by -Wall, 1 if set by -Wmain */
-      if (warn_main == 2)
-	warn_main = 0;
-    }
-  else if (!strncmp (p, "-std=", 5))
-    {
-      /* Select the appropriate language standard.  We currently
-	 recognize:
-	 -std=iso9899:1990	same as -ansi
-	 -std=iso9899:199409	ISO C as modified in amend. 1
-	 -std=iso9899:1999	ISO C 99
-	 -std=c89		same as -std=iso9899:1990
-	 -std=c99		same as -std=iso9899:1999
-	 -std=gnu89		default, iso9899:1990 + gnu extensions
-	 -std=gnu99		iso9899:1999 + gnu extensions
-      */
-      const char *const argstart = &p[5];
-
-      if (!strcmp (argstart, "iso9899:1990")
-	  || !strcmp (argstart, "c89"))
-	{
-	iso_1990:
-	  flag_isoc94 = 0;
-	iso_1994:
-	  flag_writable_strings = 0;
-	  flag_no_asm = 1;
-	  flag_no_nonansi_builtin = 1;
-	  flag_noniso_default_format_attributes = 0;
-	  flag_isoc99 = 0;
-	  flag_iso = 1;
-	}
-      else if (!strcmp (argstart, "iso9899:199409"))
-	{
-	  flag_isoc94 = 1;
-	  goto iso_1994;
-	}
-      else if (!strcmp (argstart, "iso9899:199x")
-	       || !strcmp (argstart, "iso9899:1999")
-	       || !strcmp (argstart, "c9x")
-	       || !strcmp (argstart, "c99"))
-	{
-	  flag_writable_strings = 0;
-	  flag_no_asm = 1;
-	  flag_no_nonansi_builtin = 1;
-	  flag_noniso_default_format_attributes = 0;
-	  flag_isoc99 = 1;
-	  flag_isoc94 = 1;
-	  flag_iso = 1;
-	}
-      else if (!strcmp (argstart, "gnu89"))
-	{
-	  flag_writable_strings = 0;
-	  flag_no_asm = 0;
-	  flag_no_nonansi_builtin = 0;
-	  flag_noniso_default_format_attributes = 1;
-	  flag_isoc99 = 0;
-	  flag_isoc94 = 0;
-	}
-      else if (!strcmp (argstart, "gnu9x") || !strcmp (argstart, "gnu99"))
-	{
-	  flag_writable_strings = 0;
-	  flag_no_asm = 0;
-	  flag_no_nonansi_builtin = 0;
-	  flag_noniso_default_format_attributes = 1;
-	  flag_isoc99 = 1;
-	  flag_isoc94 = 1;
-	}
-      else if (!strcmp (argstart, "c++98"))
-	; /* Handled by cpplib.  */
-      else
-	error ("unknown C standard `%s'", argstart);
-    }
-  else if (!strcmp (p, "-fdollars-in-identifiers"))
-    dollars_in_ident = 1;
-  else if (!strcmp (p, "-fno-dollars-in-identifiers"))
-    dollars_in_ident = 0;
-  else if (!strcmp (p, "-fsigned-char"))
-    flag_signed_char = 1;
-  else if (!strcmp (p, "-funsigned-char"))
-    flag_signed_char = 0;
-  else if (!strcmp (p, "-fno-signed-char"))
-    flag_signed_char = 0;
-  else if (!strcmp (p, "-fno-unsigned-char"))
-    flag_signed_char = 1;
-  else if (!strcmp (p, "-fsigned-bitfields")
-	   || !strcmp (p, "-fno-unsigned-bitfields"))
-    {
-      flag_signed_bitfields = 1;
-      explicit_flag_signed_bitfields = 1;
-    }
-  else if (!strcmp (p, "-funsigned-bitfields")
-	   || !strcmp (p, "-fno-signed-bitfields"))
-    {
-      flag_signed_bitfields = 0;
-      explicit_flag_signed_bitfields = 1;
-    }
-  else if (!strcmp (p, "-fshort-enums"))
-    flag_short_enums = 1;
-  else if (!strcmp (p, "-fno-short-enums"))
-    flag_short_enums = 0;
-  else if (!strcmp (p, "-fshort-wchar"))
-    flag_short_wchar = 1;
-  else if (!strcmp (p, "-fno-short-wchar"))
-    flag_short_wchar = 0;
-  else if (!strcmp (p, "-fcond-mismatch"))
-    flag_cond_mismatch = 1;
-  else if (!strcmp (p, "-fno-cond-mismatch"))
-    flag_cond_mismatch = 0;
-  else if (!strcmp (p, "-fshort-double"))
-    flag_short_double = 1;
-  else if (!strcmp (p, "-fno-short-double"))
-    flag_short_double = 0;
-  else if (!strcmp (p, "-fasm"))
-    flag_no_asm = 0;
-  else if (!strcmp (p, "-fno-asm"))
-    flag_no_asm = 1;
-  else if (!strcmp (p, "-fms-extensions"))
-    flag_ms_extensions = 1;
-  else if (!strcmp (p, "-fno-ms-extensions"))
-    flag_ms_extensions = 0;
-  else if (!strcmp (p, "-fbuiltin"))
-    flag_no_builtin = 0;
-  else if (!strcmp (p, "-fno-builtin"))
-    flag_no_builtin = 1;
-  else if (!strncmp (p, "-fno-builtin-", strlen ("-fno-builtin-")))
-    disable_builtin_function (p + strlen ("-fno-builtin-"));
-  else if (p[0] == '-' && p[1] == 'f' && dump_switch_p (p + 2))
-    ;
-  else if (!strcmp (p, "-ansi"))
-    goto iso_1990;
-  else if (!strcmp (p, "-undef"))
-    flag_undef = 1;
-  else if (!strcmp (p, "-Werror-implicit-function-declaration"))
-    mesg_implicit_function_declaration = 2;
-  else if (!strncmp (p, "-Wformat=", 9))
-    set_Wformat (atoi (p + 9));
-  else if (!strcmp (p, "-Wformat"))
-    set_Wformat (1);
-  else if (!strcmp (p, "-Wno-format"))
-    set_Wformat (0);
-  else if (!strcmp (p, "-Wimplicit"))
-    {
-      warn_implicit_int = 1;
-      if (mesg_implicit_function_declaration != 2)
-	mesg_implicit_function_declaration = 1;
-    }
-  else if (!strcmp (p, "-Wno-implicit"))
-    warn_implicit_int = 0, mesg_implicit_function_declaration = 0;
-  else if (!strcmp (p, "-Wno-main"))
-    warn_main = -1;
-  else if (!strcmp (p, "-Wunknown-pragmas"))
-    /* Set to greater than 1, so that even unknown pragmas in system
-       headers will be warned about.  */
-    warn_unknown_pragmas = 2;
-  else if (!strcmp (p, "-Wno-unknown-pragmas"))
-    warn_unknown_pragmas = 0;
-  else if (!strcmp (p, "-Wall"))
-    {
-      /* We save the value of warn_uninitialized, since if they put
-	 -Wuninitialized on the command line, we need to generate a
-	 warning about not using it without also specifying -O.  */
-      if (warn_uninitialized != 1)
-	warn_uninitialized = 2;
-      warn_implicit_int = 1;
-      mesg_implicit_function_declaration = 1;
-      warn_return_type = 1;
-      set_Wunused (1);
-      warn_switch = 1;
-      set_Wformat (1);
-      warn_char_subscripts = 1;
-      warn_parentheses = 1;
-      warn_sequence_point = 1;
-      warn_missing_braces = 1;
-      /* We set this to 2 here, but 1 in -Wmain, so -ffreestanding can turn
-	 it off only if it's not explicit.  */
-      warn_main = 2;
-      /* Only warn about unknown pragmas that are not in system headers.  */
-      warn_unknown_pragmas = 1;
-    }
-  else if (!strcmp (p, "-E"))
-    flag_preprocess_only = 1;
-  else
-    {
-      size_t i;
-      for (i = 0; i < ARRAY_SIZE (warn_options); i++)
-	if (strncmp (p, "-W", 2) == 0 
-	    && (strcmp (p+2, warn_options[i].option) == 0
-		|| (strncmp (p+2, "no-", 3) == 0
-		    && strcmp (p+5, warn_options[i].option) == 0)))
-	  {
-	    *(warn_options[i].flag) = strncmp (p+2, "no-", 3) != 0;
-	    return 1;
-	  }
-      return strings_processed;
-    }
-
-  return 1;
-}
-
 void
 c_print_identifier (file, node, indent)
      FILE *file;
============================================================
Index: gcc/c-lang.c
--- gcc/c-lang.c	26 Jul 2002 13:45:33 -0000	1.95
+++ gcc/c-lang.c	5 Aug 2002 06:42:31 -0000
@@ -43,7 +43,7 @@ static void c_init_options PARAMS ((void
 #undef LANG_HOOKS_INIT_OPTIONS
 #define LANG_HOOKS_INIT_OPTIONS c_init_options
 #undef LANG_HOOKS_DECODE_OPTION
-#define LANG_HOOKS_DECODE_OPTION c_decode_option
+#define LANG_HOOKS_DECODE_OPTION c_common_decode_option
 #undef LANG_HOOKS_POST_OPTIONS
 #define LANG_HOOKS_POST_OPTIONS c_common_post_options
 #undef LANG_HOOKS_GET_ALIAS_SET
============================================================
Index: gcc/c-opts.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gcc/c-opts.c	5 Aug 2002 06:42:31 -0000
@@ -0,0 +1,1105 @@
+/* C/ObjC/C++ command line option handling.
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   Contributed by Neil Booth.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
+
+#include "config.h"
+#include "system.h"
+#include "tree.h"
+#include "c-common.h"
+#include "c-pragma.h"
+#include "flags.h"
+#include "toplev.h"
+#include "langhooks.h"
+#include "tree-inline.h"
+#include "diagnostic.h"
+
+static void missing_arg PARAMS ((size_t));
+static size_t parse_option PARAMS ((const char *, int));
+static void set_Wimplicit PARAMS ((int));
+static void complain_wrong_lang PARAMS ((size_t));
+static void write_langs PARAMS ((char *, int));
+
+#define CL_C_ONLY	(1 << 0) /* Only C.  */
+#define CL_OBJC_ONLY	(1 << 1) /* Only ObjC.  */
+#define CL_CXX_ONLY	(1 << 2) /* Only C++.  */
+#define CL_OBJCXX_ONLY	(1 << 3) /* Only ObjC++.  */
+#define CL_JOINED	(1 << 4) /* If takes joined argument.  */
+#define CL_SEPARATE	(1 << 5) /* If takes a separate argument.  */
+
+#define CL_ARG		(CL_JOINED | CL_SEPARATE)
+#define CL_C		(CL_C_ONLY | CL_OBJC_ONLY)
+#define CL_OBJC		(CL_OBJC_ONLY | CL_OBJCXX_ONLY)
+#define CL_CXX		(CL_CXX_ONLY | CL_OBJCXX_ONLY)
+#define CL_ALL		(CL_C | CL_CXX)
+
+/* This is the list of all command line options, with the leading "-"
+   removed.  It must be sorted in ASCII collating order.  All options
+   beginning with "f" or "W" are implicitly assumed to take a "no-"
+   form; this form should not be listed.  If you don't want a "no-"
+   form, your handler should check and reject it.
+
+   If the user gives an option to a front end that doesn't support it,
+   an error is output, mentioning which front ends the option is valid
+   for.  If you don't want this, you must accept it for all front
+   ends, and test for the front end in the option handler.  */
+#define COMMAND_LINE_OPTIONS						     \
+  OPT("E",			CL_ALL,   OPT_E)			     \
+  OPT("Wall",			CL_ALL,   OPT_Wall)			     \
+  OPT("Wbad-function-cast",	CL_C,     OPT_Wbad_function_cast)	     \
+  OPT("Wcast-qual",		CL_ALL,   OPT_Wcast_qual)		     \
+  OPT("Wchar-subscripts",	CL_ALL,   OPT_Wchar_subscripts)		     \
+  OPT("Wconversion",		CL_ALL,   OPT_Wconversion)		     \
+  OPT("Wctor-dtor-privacy",	CL_CXX,   OPT_Wctor_dtor_privacy)	     \
+  OPT("Wdeprecated",		CL_CXX,   OPT_Wdeprecated)		     \
+  OPT("Wdiv-by-zero",		CL_C,     OPT_Wdiv_by_zero)		     \
+  OPT("Weffc++",		CL_CXX,   OPT_Weffcxx)			     \
+  OPT("Werror-implicit-function-declaration",				     \
+	     			CL_C,     OPT_Werror_implicit_function_decl) \
+  OPT("Wfloat-equal",		CL_ALL,   OPT_Wfloat_equal)		     \
+  OPT("Wformat",		CL_ALL,   OPT_Wformat)			     \
+  OPT("Wformat-extra-args",	CL_ALL,   OPT_Wformat_extra_args)	     \
+  OPT("Wformat-nonliteral",	CL_ALL,   OPT_Wformat_nonliteral)	     \
+  OPT("Wformat-security",	CL_ALL,   OPT_Wformat_security)		     \
+  OPT("Wformat-y2k",		CL_ALL,   OPT_Wformat_y2k)		     \
+  OPT("Wformat-zero-length",	CL_C,     OPT_Wformat_zero_length)	     \
+  OPT("Wformat=",		CL_ALL | CL_JOINED, OPT_Wformat_eq)	     \
+  OPT("Wimplicit",		CL_CXX,   OPT_Wimplicit)		     \
+  OPT("Wimplicit-function-declaration",	CL_C, OPT_Wimplicit_function_decl)   \
+  OPT("Wimplicit-int",		CL_C,	  OPT_Wimplicit_int)		     \
+  OPT("Wlong-long",		CL_ALL,   OPT_Wlong_long)		     \
+  OPT("Wmain",			CL_C,     OPT_Wmain)			     \
+  OPT("Wmissing-braces",	CL_ALL,   OPT_Wmissing_braces)		     \
+  OPT("Wmissing-declarations",	CL_C,     OPT_Wmissing_declarations)	     \
+  OPT("Wmissing-format-attribute",CL_ALL, OPT_Wmissing_format_attribute)     \
+  OPT("Wmissing-prototypes",	CL_ALL,   OPT_Wmissing_prototypes)	     \
+  OPT("Wmultichar",		CL_ALL,   OPT_Wmultichar)		     \
+  OPT("Wnested-externs",	CL_C,     OPT_Wnested_externs)		     \
+  OPT("Wnon-template-friend",	CL_CXX,   OPT_Wnon_template_friend)	     \
+  OPT("Wnon-virtual-dtor",	CL_CXX,   OPT_Wnon_virtual_dtor)	     \
+  OPT("Wnonnull",		CL_C,     OPT_Wnonnull)			     \
+  OPT("Wold-style-cast",	CL_CXX,   OPT_Wold_style_cast)		     \
+  OPT("Woverloaded-virtual",	CL_CXX,   OPT_Woverloaded_virtual)	     \
+  OPT("Wparentheses",		CL_ALL,   OPT_Wparentheses)		     \
+  OPT("Wpmf-conversions",	CL_CXX,   OPT_Wpmf_conversions)		     \
+  OPT("Wpointer-arith",		CL_ALL,   OPT_Wpointer_arith)		     \
+  OPT("Wprotocol",		CL_OBJC,  OPT_Wprotocol)		     \
+  OPT("Wredundant-decls",	CL_ALL,   OPT_Wredundant_decls)		     \
+  OPT("Wreorder",		CL_CXX,   OPT_Wreorder)			     \
+  OPT("Wreturn-type",		CL_ALL,   OPT_Wreturn_type)		     \
+  OPT("Wselector",		CL_OBJC,  OPT_Wselector)		     \
+  OPT("Wsequence-point",	CL_C,     OPT_Wsequence_point)		     \
+  OPT("Wsign-compare",		CL_ALL,   OPT_Wsign_compare)		     \
+  OPT("Wsign-promo",		CL_CXX,   OPT_Wsign_promo)		     \
+  OPT("Wstrict-prototypes",	CL_ALL,   OPT_Wstrict_prototypes)	     \
+  OPT("Wsynth",			CL_CXX,   OPT_Wsynth)			     \
+  OPT("Wtraditional",		CL_C,     OPT_Wtraditional)		     \
+  OPT("Wunknown-pragmas",	CL_ALL,   OPT_Wunknown_pragmas)		     \
+  OPT("Wwrite-strings",		CL_ALL,   OPT_Wwrite_strings)		     \
+  OPT("ansi",			CL_ALL,   OPT_ansi)			     \
+  OPT("faccess-control",	CL_CXX,   OPT_faccess_control)		     \
+  OPT("fall-virtual",		CL_CXX,   OPT_fall_virtual)		     \
+  OPT("falt-external-templates",CL_CXX,   OPT_falt_external_templates)	     \
+  OPT("fasm",			CL_ALL,   OPT_fasm)			     \
+  OPT("fbuiltin",		CL_ALL,   OPT_fbuiltin)			     \
+  OPT("fbuiltin-",		CL_ALL | CL_JOINED, OPT_fbuiltin_)	     \
+  OPT("fcheck-new",		CL_CXX,   OPT_fcheck_new)		     \
+  OPT("fcond-mismatch",		CL_ALL,   OPT_fcond_mismatch)		     \
+  OPT("fconserve-space",	CL_CXX,   OPT_fconserve_space)		     \
+  OPT("fconst-strings",		CL_CXX,   OPT_fconst_strings)		     \
+  OPT("fconstant-string-class=", CL_OBJC | CL_JOINED,			     \
+					  OPT_fconstant_string_class)	     \
+  OPT("fdefault-inline",	CL_CXX,   OPT_fdefault_inline)		     \
+  OPT("fdollars-in-identifiers",CL_ALL,   OPT_fdollars_in_identifiers)	     \
+  OPT("fdump-",			CL_ALL | CL_JOINED, OPT_fdump)		     \
+  OPT("felide-constructors",	CL_CXX,   OPT_felide_constructors)	     \
+  OPT("fenforce-eh-specs",	CL_CXX,   OPT_fenforce_eh_specs)	     \
+  OPT("fenum-int-equiv",	CL_CXX,   OPT_fenum_int_equiv)		     \
+  OPT("fexternal-templates",	CL_CXX,   OPT_fexternal_templates)	     \
+  OPT("ffor-scope",		CL_CXX,   OPT_ffor_scope)		     \
+  OPT("ffreestanding",		CL_C,     OPT_ffreestanding)		     \
+  OPT("fgnu-keywords",		CL_CXX,   OPT_fgnu_keywords)		     \
+  OPT("fgnu-runtime",		CL_OBJC,  OPT_fgnu_runtime)		     \
+  OPT("fguiding-decls",		CL_CXX,   OPT_fguiding_decls)		     \
+  OPT("fhandle-exceptions",	CL_CXX,   OPT_fhandle_exceptions)	     \
+  OPT("fhonor-std",		CL_CXX,   OPT_fhonor_std)		     \
+  OPT("fhosted",		CL_C,     OPT_fhosted)			     \
+  OPT("fhuge-objects",		CL_CXX,   OPT_fhuge_objects)		     \
+  OPT("fimplement-inlines",	CL_CXX,   OPT_fimplement_inlines)	     \
+  OPT("fimplicit-inline-templates", CL_CXX, OPT_fimplicit_inline_templates)  \
+  OPT("fimplicit-templates",	CL_CXX,   OPT_fimplicit_templates)	     \
+  OPT("flabels-ok",		CL_CXX,   OPT_flabels_ok)		     \
+  OPT("fms-extensions",		CL_ALL,   OPT_fms_extensions)		     \
+  OPT("fname-mangling-version-",CL_CXX | CL_JOINED, OPT_fname_mangling)	     \
+  OPT("fnew-abi",		CL_CXX,   OPT_fnew_abi)			     \
+  OPT("fnext-runtime",		CL_OBJC,  OPT_fnext_runtime)		     \
+  OPT("fnonansi-builtins",	CL_CXX,   OPT_fnonansi_builtins)	     \
+  OPT("fnonnull-objects",	CL_CXX,   OPT_fnonnull_objects)		     \
+  OPT("foptional-diags",	CL_CXX,   OPT_foptional_diags)		     \
+  OPT("fpermissive",		CL_CXX,   OPT_fpermissive)		     \
+  OPT("frepo",			CL_CXX,   OPT_frepo)			     \
+  OPT("frtti",			CL_CXX,   OPT_frtti)			     \
+  OPT("fshort-double",		CL_ALL,   OPT_fshort_double)		     \
+  OPT("fshort-enums",		CL_ALL,   OPT_fshort_enums)		     \
+  OPT("fshort-wchar",		CL_ALL,   OPT_fshort_wchar)		     \
+  OPT("fsigned-bitfields",	CL_ALL,   OPT_fsigned_bitfields)	     \
+  OPT("fsigned-char",		CL_ALL,   OPT_fsigned_char)		     \
+  OPT("fsquangle",		CL_CXX,   OPT_fsquangle)		     \
+  OPT("fstats",			CL_CXX,   OPT_fstats)			     \
+  OPT("fstrict-prototype",	CL_CXX,   OPT_fstrict_prototype)	     \
+  OPT("ftemplate-depth-",	CL_CXX | CL_JOINED, OPT_ftemplate_depth)     \
+  OPT("fthis-is-variable",	CL_CXX,   OPT_fthis_is_variable)	     \
+  OPT("funsigned-bitfields",	CL_ALL,   OPT_funsigned_bitfields)	     \
+  OPT("funsigned-char",		CL_ALL,   OPT_funsigned_char)		     \
+  OPT("fuse-cxa-atexit",	CL_CXX,   OPT_fuse_cxa_atexit)		     \
+  OPT("fvtable-gc",		CL_CXX,   OPT_fvtable_gc)		     \
+  OPT("fvtable-thunks",		CL_CXX,   OPT_fvtable_thunks)		     \
+  OPT("fweak",			CL_CXX,   OPT_fweak)			     \
+  OPT("fxref",			CL_CXX,   OPT_fxref)			     \
+  OPT("gen-decls",		CL_OBJC,  OPT_gen_decls)		     \
+  OPT("print-objc-runtime-info", CL_OBJC, OPT_print_objc_runtime_info)	     \
+  OPT("std=",			CL_ALL | CL_JOINED, OPT_std_bad)	     \
+  OPT("std=c++98",		CL_CXX,	  OPT_std_cplusplus98)		     \
+  OPT("std=c89",		CL_C,     OPT_std_c89)			     \
+  OPT("std=c99",		CL_C,     OPT_std_c99)			     \
+  OPT("std=c9x",		CL_C,     OPT_std_c9x)			     \
+  OPT("std=gnu89",		CL_C,     OPT_std_gnu89)		     \
+  OPT("std=gnu99",		CL_C,     OPT_std_gnu99)		     \
+  OPT("std=gnu9x",		CL_C,     OPT_std_gnu9x)		     \
+  OPT("std=iso9899:1990",	CL_C,     OPT_std_iso9899_1990)		     \
+  OPT("std=iso9899:199409",	CL_C,     OPT_std_iso9899_199409)	     \
+  OPT("std=iso9899:1999",	CL_C,     OPT_std_iso9899_1999)		     \
+  OPT("std=iso9899:199x",	CL_C,     OPT_std_iso9899_199x)		     \
+  OPT("undef",			CL_ALL,   OPT_undef)
+
+#define OPT(text, flags, code) code,
+enum opt_code
+{
+  COMMAND_LINE_OPTIONS
+  N_OPTS
+};
+#undef OPT
+
+struct cl_option
+{
+  const char *opt_text;
+  unsigned char opt_len;
+  unsigned char flags;
+  ENUM_BITFIELD (opt_code) opt_code : 2 * CHAR_BIT;
+};
+
+#define OPT(text, flags, code) { text, sizeof(text) - 1, flags, code },
+#ifdef HOST_EBCDIC
+static struct cl_option cl_options[] =
+#else
+static const struct cl_option cl_options[] =
+#endif
+{
+  COMMAND_LINE_OPTIONS
+};
+#undef OPT
+#undef COMMAND_LINE_OPTIONS
+
+#ifdef HOST_EBCDIC
+static int opt_comp PARAMS ((const void *, const void *));
+
+/* Run-time sorting of options array.  */
+static int
+opt_comp (p1, p2)
+     const void *p1, *p2;
+{
+  return strcmp (((struct cl_option *) p1)->opt_text,
+		 ((struct cl_option *) p2)->opt_text);
+}
+#endif
+
+/* Perform a binary search to find which option the command-line INPUT
+   matches.  Returns its index in the option array, and N_OPTS on
+   failure.
+
+   Complications arise since some options can be suffixed with an
+   argument, and multiple complete matches can occur, e.g. -pedantic
+   and -pedantic-errors.  Also, some options are only accepted by some
+   languages.  */
+static size_t
+parse_option (input, lang_flag)
+     const char *input;
+     int lang_flag;
+{
+  size_t md, mn, mx;
+  size_t opt_len;
+  size_t wrong_lang = N_OPTS;
+  int comp;
+
+  mn = 0;
+  mx = N_OPTS;
+
+  while (mx > mn)
+    {
+      md = (mn + mx) / 2;
+
+      opt_len = cl_options[md].opt_len;
+      comp = memcmp (input, cl_options[md].opt_text, opt_len);
+
+      if (comp < 0)
+	mx = md;
+      else if (comp > 0)
+	mn = md + 1;
+      else
+	{
+	  /* The switch matches.  It it an exact match?  */
+	  if (input[opt_len] == '\0')
+	    {
+	    exact_match:
+	      if (cl_options[md].flags & lang_flag)
+		return md;
+	      wrong_lang = md;
+	      break;
+	    }
+	  else
+	    {
+	      mn = md + 1;
+
+	      /* If the switch takes no arguments this is not a proper
+		 match, so we continue the search (e.g. input="stdc++"
+		 match was "stdc").  */
+	      if (!(cl_options[md].flags & CL_JOINED))
+		continue;
+
+	      /* Is this switch valid for this front end?  */
+	      if (!(cl_options[md].flags & lang_flag))
+		{
+		  /* If subsequently we don't find a good match,
+		     report this as a bad match.  */
+		  wrong_lang = md;
+		  continue;
+		}
+
+	      /* Two scenarios remain: we have the switch's argument,
+		 or we match a longer option.  This can happen with
+		 -iwithprefix and -withprefixbefore.  The longest
+		 possible option match succeeds.
+
+		 Scan forwards, and return an exact match.  Otherwise
+		 return the longest valid option-accepting match (mx).
+		 This loops at most twice with current options.  */
+	      mx = md;
+	      for (md = md + 1; md < (size_t) N_OPTS; md++)
+		{
+		  opt_len = cl_options[md].opt_len;
+		  if (memcmp (input, cl_options[md].opt_text, opt_len))
+		    break;
+		  if (input[opt_len] == '\0')
+		    goto exact_match;
+		  if (cl_options[md].flags & lang_flag
+		      && cl_options[md].flags & CL_JOINED)
+		    mx = md;
+		}
+
+	      return mx;
+	    }
+	}
+    }
+
+  if (wrong_lang != N_OPTS)
+    complain_wrong_lang (wrong_lang);
+
+  return N_OPTS;
+}
+
+/* Common initialization before parsing options.  */
+void
+c_common_init_options (lang)
+     enum c_language_kind lang;
+{
+#ifdef HOST_EBCDIC
+  /* For non-ASCII hosts, the cl_options array needs to be sorted at
+     runtime.  */
+  qsort (cl_options, N_OPTS, sizeof (struct cl_option), opt_comp);
+#endif
+
+  c_language = lang;
+  parse_in = cpp_create_reader (lang == clk_c || lang == clk_objective_c
+				? CLK_GNUC89 : CLK_GNUCXX);
+  if (lang == clk_objective_c)
+    cpp_get_options (parse_in)->objc = 1;
+
+  flag_const_strings = (lang == clk_cplusplus);
+  warn_pointer_arith = (lang == clk_cplusplus);
+  if (lang == clk_c)
+    warn_sign_compare = -1;
+
+  /* Mark as "unspecified" (see c_common_post_options).  */
+  flag_bounds_check = -1;
+}
+
+/* Handle one command-line option in (argc, argv).
+   Can be called multiple times, to handle multiple sets of options.
+   Returns number of strings consumed.  */
+int
+c_common_decode_option (argc, argv)
+     int argc;
+     char **argv;
+{
+  size_t opt_index;
+  const char *opt, *arg = 0;
+  char *dup = 0;
+  bool on = true;
+  int result, lang_flag;
+  const struct cl_option *option;
+  enum opt_code code;
+
+  result = cpp_handle_option (parse_in, argc, argv);
+  opt = argv[0];
+
+  /* Until handling CPP stuff, ignore non-switches.  */
+  if (opt[0] != '-' || opt[1] == '\0')
+    return result;
+
+  switch (c_language)
+    {
+    case clk_c:			lang_flag = CL_C_ONLY; break;
+    case clk_cplusplus:		lang_flag = CL_CXX_ONLY; break;
+    case clk_objective_c:	lang_flag = CL_OBJC_ONLY; break;
+    default:			abort ();
+    }
+
+  /* Drop the "no-" from negative switches.  */
+  if ((opt[1] == 'W' || opt[1] == 'f')
+      && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-')
+    {
+      size_t len = strlen (opt) - 3;
+
+      dup = xmalloc (len + 1);
+      dup[0] = '-';
+      dup[1] = opt[1];
+      memcpy (dup + 2, opt + 5, len - 2 + 1);
+      opt = dup;
+      on = false;
+    }
+
+  /* Skip over '-'.  */
+  opt_index = parse_option (opt + 1, lang_flag);
+  if (opt_index == N_OPTS)
+    goto done;
+  option = &cl_options[opt_index];
+
+  /* Sort out any argument the switch takes.  */
+  if (option->flags & CL_ARG)
+    {
+      if (option->flags & CL_JOINED)
+	{
+	  /* Have arg point to the original switch.  This is because
+	     some code, such as disable_builtin_function, expects its
+	     argument to be persistent until the program exits.  */
+	  arg = argv[0] + cl_options[opt_index].opt_len + 1;
+	  if (!on)
+	    arg += strlen ("no-");
+	  if (*arg == '\0' && (option->flags & CL_SEPARATE))
+	    arg = 0;
+	}
+
+      /* If arg is still 0, we can only be a CL_SEPARATE switch.  */
+      if (arg == 0)
+	{
+	  arg = argv[1];
+	  if (!arg)
+	    {
+	      missing_arg (opt_index);
+	      result = argc;
+	      goto done;
+	    }
+	}
+    }
+
+  switch (code = cl_options[opt_index].opt_code)
+    {
+    case N_OPTS: /* Shut GCC up.  */
+      break;
+
+    case OPT_E:
+      flag_preprocess_only = 1;
+      break;
+
+    case OPT_Wall:
+      set_Wunused (on);
+      set_Wformat (on);
+      set_Wimplicit (on);
+      warn_char_subscripts = on;
+      warn_missing_braces = on;
+      warn_multichar = on;	/* Was C++ only.  */
+      warn_parentheses = on;
+      warn_return_type = on;
+      warn_sequence_point = on;	/* Was C only.  */
+      warn_sign_compare = on;	/* Was C++ only.  */
+      warn_switch = on;
+
+      /* Only warn about unknown pragmas that are not in system
+	 headers.  */                                        
+      warn_unknown_pragmas = on;
+
+      /* We save the value of warn_uninitialized, since if they put
+	 -Wuninitialized on the command line, we need to generate a
+	 warning about not using it without also specifying -O.  */
+      if (warn_uninitialized != 1)
+	warn_uninitialized = (on ? 2 : 0);
+
+      if (c_language == clk_c || c_language == clk_objective_c)
+	/* We set this to 2 here, but 1 in -Wmain, so -ffreestanding
+	   can turn it off only if it's not explicit.  */
+	warn_main = on * 2;
+      else
+	{
+	  /* C++-specific warnings.  */
+	  warn_ctor_dtor_privacy = on;
+	  warn_nonvdtor = on;
+	  warn_reorder = on;
+	  warn_nontemplate_friend = on;
+	}
+      break;
+
+    case OPT_Wbad_function_cast:
+      warn_bad_function_cast = on;
+      break;
+
+    case OPT_Wcast_qual:
+      warn_cast_qual = on;
+      break;
+
+    case OPT_Wchar_subscripts:
+      warn_char_subscripts = on;
+      break;
+
+    case OPT_Wconversion:
+      warn_conversion = on;
+      break;
+
+    case OPT_Wctor_dtor_privacy:
+      warn_ctor_dtor_privacy = on;
+      break;
+
+    case OPT_Wdeprecated:
+      warn_deprecated = on;
+      break;
+
+    case OPT_Wdiv_by_zero:
+      warn_div_by_zero = on;
+      break;
+
+    case OPT_Weffcxx:
+      warn_ecpp = on;
+      break;
+
+    case OPT_Werror_implicit_function_decl:
+      if (!on)
+	{
+	  result = 0;
+	  goto done;
+	}
+      mesg_implicit_function_declaration = 2;
+      break;
+
+    case OPT_Wfloat_equal:
+      warn_float_equal = on;
+      break;
+
+    case OPT_Wformat:
+      set_Wformat (on);
+      break;
+
+    case OPT_Wformat_eq:
+      set_Wformat (atoi (arg));
+      break;
+
+    case OPT_Wformat_extra_args:
+      warn_format_extra_args = on;
+      break;
+
+    case OPT_Wformat_nonliteral:
+      warn_format_nonliteral = on;
+      break;
+
+    case OPT_Wformat_security:
+      warn_format_security = on;
+      break;
+
+    case OPT_Wformat_y2k:
+      warn_format_y2k = on;
+      break;
+
+    case OPT_Wformat_zero_length:
+      warn_format_zero_length = on;
+      break;
+
+    case OPT_Wimplicit:
+      set_Wimplicit (on);
+      break;
+
+    case OPT_Wimplicit_function_decl:
+      mesg_implicit_function_declaration = on;
+      break;
+
+    case OPT_Wimplicit_int:
+      warn_implicit_int = on;
+      break;
+
+    case OPT_Wlong_long:
+      warn_long_long = on;
+      break;
+
+    case OPT_Wmain:
+      if (on)
+	warn_main = 1;
+      else
+	warn_main = -1;
+      break;
+
+    case OPT_Wmissing_braces:
+      warn_missing_braces = on;
+      break;
+
+    case OPT_Wmissing_declarations:
+      warn_missing_declarations = on;
+      break;
+
+    case OPT_Wmissing_format_attribute:
+      warn_missing_format_attribute = on;
+      break;
+
+    case OPT_Wmissing_prototypes:
+      warn_missing_prototypes = on;
+      break;
+
+    case OPT_Wmultichar:
+      warn_multichar = on;
+      break;
+
+    case OPT_Wnested_externs:
+      warn_nested_externs = on;
+      break;
+
+    case OPT_Wnon_template_friend:
+      warn_nontemplate_friend = on;
+      break;
+
+    case OPT_Wnon_virtual_dtor:
+      warn_nonvdtor = on;
+      break;
+
+    case OPT_Wnonnull:
+      warn_nonnull = on;
+      break;
+
+    case OPT_Wold_style_cast:
+      warn_old_style_cast = on;
+      break;
+
+    case OPT_Woverloaded_virtual:
+      warn_overloaded_virtual = on;
+      break;
+
+    case OPT_Wparentheses:
+      warn_parentheses = on;
+      break;
+
+    case OPT_Wpmf_conversions:
+      warn_pmf2ptr = on;
+      break;
+
+    case OPT_Wpointer_arith:
+      warn_pointer_arith = on;
+      break;
+
+    case OPT_Wprotocol:
+      warn_protocol = on;
+      break;
+
+    case OPT_Wselector:
+      warn_selector = on;
+      break;
+
+    case OPT_Wredundant_decls:
+      warn_redundant_decls = on;
+      break;
+
+    case OPT_Wreorder:
+      warn_reorder = on;
+      break;
+
+    case OPT_Wreturn_type:
+      warn_return_type = on;
+      break;
+
+    case OPT_Wsequence_point:
+      warn_sequence_point = on;
+      break;
+
+    case OPT_Wsign_compare:
+      warn_sign_compare = on;
+      break;
+
+    case OPT_Wsign_promo:
+      warn_sign_promo = on;
+      break;
+
+    case OPT_Wstrict_prototypes:
+      if (!on && c_language == clk_cplusplus)
+	warning ("-Wno-strict-prototypes is not supported in C++");
+      else
+	warn_strict_prototypes = on;
+      break;
+
+    case OPT_Wsynth:
+      warn_synth = on;
+      break;
+
+    case OPT_Wtraditional:
+      warn_traditional = on;
+      break;
+
+    case OPT_Wunknown_pragmas:
+      /* Set to greater than 1, so that even unknown pragmas in
+	 system headers will be warned about.  */  
+      warn_unknown_pragmas = on * 2;
+      break;
+
+    case OPT_Wwrite_strings:
+      if (c_language == clk_c || c_language == clk_objective_c)
+	flag_const_strings = on;
+      else
+	warn_write_strings = on;
+      break;
+
+    case OPT_fcond_mismatch:
+      if (c_language == clk_c || c_language == clk_objective_c)
+	{
+	  flag_cond_mismatch = on;
+	  break;
+	}
+      /* Fall through.  */
+
+    case OPT_fall_virtual:
+    case OPT_fenum_int_equiv:
+    case OPT_fguiding_decls:
+    case OPT_fhonor_std:
+    case OPT_fhuge_objects:
+    case OPT_flabels_ok:
+    case OPT_fname_mangling:
+    case OPT_fnew_abi:
+    case OPT_fnonnull_objects:
+    case OPT_fsquangle:
+    case OPT_fstrict_prototype:
+    case OPT_fthis_is_variable:
+    case OPT_fvtable_thunks:
+    case OPT_fxref:
+      warning ("switch \"%s\" is no longer supported", argv[0]);
+      break;
+
+    case OPT_faccess_control:
+      flag_access_control = on;
+      break;
+
+    case OPT_falt_external_templates:
+      flag_alt_external_templates = on;
+      if (on)
+	flag_external_templates = true;
+    cp_deprecated:
+      warning ("switch \"%s\" is deprecated, please see documentation for details", argv[0]);
+      break;
+
+    case OPT_fasm:
+      flag_no_asm = !on;
+      break;
+
+    case OPT_fbuiltin:
+      flag_no_builtin = !on;
+      break;
+
+    case OPT_fbuiltin_:
+      if (on)
+	{
+	  result = 0;
+	  goto done;
+	}
+      disable_builtin_function (arg);
+      break;
+
+    case OPT_fdollars_in_identifiers:
+      dollars_in_ident = on;
+      break;
+
+    case OPT_fdump:
+      if (!on || !dump_switch_p (argv[0] + strlen ("-f")))
+	{
+	  result = 0;
+	  goto done;
+	}
+      break;
+
+    case OPT_ffreestanding:
+      on = !on;
+      /* Fall through...  */
+    case OPT_fhosted:
+      flag_hosted = on;
+      flag_no_builtin = !on;
+      /* warn_main will be 2 if set by -Wall, 1 if set by -Wmain */
+      if (!on && warn_main == 2)
+	warn_main = 0;
+      break;
+
+    case OPT_fshort_double:
+      flag_short_double = on;
+      break;
+
+    case OPT_fshort_enums:
+      flag_short_enums = on;
+      break;
+
+    case OPT_fshort_wchar:
+      flag_short_wchar = on;
+      break;
+
+    case OPT_fsigned_bitfields:
+      flag_signed_bitfields = on;
+      explicit_flag_signed_bitfields = 1;
+      break;
+
+    case OPT_fsigned_char:
+      flag_signed_char = on;
+      break;
+
+    case OPT_funsigned_bitfields:
+      flag_signed_bitfields = !on;
+      explicit_flag_signed_bitfields = 1;
+      break;
+
+    case OPT_funsigned_char:
+      flag_signed_char = !on;
+      break;
+
+    case OPT_fcheck_new:
+      flag_check_new = on;
+      break;
+
+    case OPT_fconserve_space:
+      flag_conserve_space = on;
+      break;
+
+    case OPT_fconst_strings:
+      flag_const_strings = on;
+      break;
+
+    case OPT_fconstant_string_class:
+      if (*arg == 0)
+	error ("no class name specified with -fconstant-string-class=");
+      else
+	constant_string_class_name = arg;
+      break;
+
+    case OPT_fdefault_inline:
+      flag_default_inline = on;
+      break;
+
+    case OPT_felide_constructors:
+      flag_elide_constructors = on;
+      break;
+
+    case OPT_fenforce_eh_specs:
+      flag_enforce_eh_specs = on;
+      break;
+
+    case OPT_fexternal_templates:
+      flag_external_templates = on;
+      goto cp_deprecated;
+
+    case OPT_ffor_scope:
+      flag_new_for_scope = on;
+      break;
+
+    case OPT_fgnu_keywords:
+      flag_no_gnu_keywords = !on;
+      break;
+
+    case OPT_fgnu_runtime:
+      flag_next_runtime = !on;
+      break;
+
+    case OPT_fhandle_exceptions:
+      warning ("-fhandle-exceptions has been renamed to -fexceptions (and is now on by default)");
+      flag_exceptions = on;
+      break;
+
+    case OPT_fimplement_inlines:
+      flag_implement_inlines = on;
+      break;
+
+    case OPT_fimplicit_inline_templates:
+      flag_implicit_inline_templates = on;
+      break;
+
+    case OPT_fimplicit_templates:
+      flag_implicit_templates = on;
+      break;
+
+    case OPT_fms_extensions:
+      flag_ms_extensions = on;
+      break;
+
+    case OPT_fnext_runtime:
+      flag_next_runtime = on;
+      break;
+
+    case OPT_fnonansi_builtins:
+      flag_no_nonansi_builtin = !on;
+      break;
+
+    case OPT_foptional_diags:
+      flag_optional_diags = on;
+      break;
+
+    case OPT_fpermissive:
+      flag_permissive = on;
+      break;
+
+    case OPT_frepo:
+      flag_use_repository = on;
+      if (on)
+	flag_implicit_templates = 0;
+      break;
+
+    case OPT_frtti:
+      flag_rtti = on;
+      break;
+
+    case OPT_fstats:
+      flag_detailed_statistics = on;
+      break;
+
+    case OPT_ftemplate_depth:
+      max_tinst_depth = read_integral_parameter (arg, argv[0], 0);
+      break;
+
+    case OPT_fvtable_gc:
+      flag_vtable_gc = on;
+      break;
+
+    case OPT_fuse_cxa_atexit:
+      flag_use_cxa_atexit = on;
+      break;
+
+    case OPT_fweak:
+      flag_weak = on;
+      break;
+
+    case OPT_gen_decls:
+      flag_gen_declaration = 1;
+      break;
+
+    case OPT_print_objc_runtime_info:
+      print_struct_values = 1;
+      break;
+
+    case OPT_std_bad:
+      error ("unknown standard \"%s\"", arg);
+      break;
+
+      /* Language standards.  We currently recognize:
+	 -std=iso9899:1990	same as -ansi
+	 -std=iso9899:199409	ISO C as modified in amend. 1
+	 -std=iso9899:1999	ISO C 99
+	 -std=c89		same as -std=iso9899:1990
+	 -std=c99		same as -std=iso9899:1999
+	 -std=gnu89		default, iso9899:1990 + gnu extensions
+	 -std=gnu99		iso9899:1999 + gnu extensions
+      */
+
+    case OPT_std_cplusplus98:
+      break;
+
+    case OPT_std_c89:
+    case OPT_std_iso9899_1990:
+    case OPT_std_iso9899_199409:
+    case OPT_ansi:
+      /* Note: -ansi is used by both the C and C++ front ends.  */
+      if (c_language == clk_c || c_language == clk_objective_c)
+	{
+	  flag_no_asm = 1;
+	  flag_writable_strings = 0;
+	}
+      flag_isoc94 = (code == OPT_std_iso9899_199409);
+      flag_no_gnu_keywords = 1;
+      flag_no_nonansi_builtin = 1;
+      flag_noniso_default_format_attributes = 0;
+      flag_isoc99 = 0;
+      flag_iso = 1;
+      break;
+
+    case OPT_std_c99:
+    case OPT_std_c9x:
+    case OPT_std_iso9899_1999:
+    case OPT_std_iso9899_199x:
+      flag_writable_strings = 0;
+      flag_no_asm = 1;
+      flag_no_nonansi_builtin = 1;
+      flag_noniso_default_format_attributes = 0;
+      flag_isoc99 = 1;
+      flag_isoc94 = 1;
+      flag_iso = 1;
+      break;
+
+    case OPT_std_gnu89:
+      flag_writable_strings = 0;
+      flag_no_asm = 0;
+      flag_no_nonansi_builtin = 0;
+      flag_noniso_default_format_attributes = 1;
+      flag_isoc99 = 0;
+      flag_isoc94 = 0;
+      break;
+
+    case OPT_std_gnu99:
+    case OPT_std_gnu9x:
+      flag_writable_strings = 0;
+      flag_no_asm = 0;
+      flag_no_nonansi_builtin = 0;
+      flag_noniso_default_format_attributes = 1;
+      flag_isoc99 = 1;
+      flag_isoc94 = 1;
+      break;
+
+    case OPT_undef:
+      flag_undef = 1;
+      break;
+    }
+
+  result = 1 + (arg == argv[1]);
+
+ done:
+  if (dup)
+    free (dup);
+  return result;
+}
+
+/* Post-switch processing.  */
+bool
+c_common_post_options ()
+{
+  cpp_post_options (parse_in);
+
+  flag_inline_trees = 1;
+
+  /* Use tree inlining if possible.  Function instrumentation is only
+     done in the RTL level, so we disable tree inlining.  */
+  if (! flag_instrument_function_entry_exit)
+    {
+      if (!flag_no_inline)
+	flag_no_inline = 1;
+      if (flag_inline_functions)
+	{
+	  flag_inline_trees = 2;
+	  flag_inline_functions = 0;
+	}
+    }
+
+  /* If still "unspecified", make it match -fbounded-pointers.  */
+  if (flag_bounds_check == -1)
+    flag_bounds_check = flag_bounded_pointers;
+
+  /* Special format checking options don't work without -Wformat; warn if
+     they are used.  */
+  if (warn_format_y2k && !warn_format)
+    warning ("-Wformat-y2k ignored without -Wformat");
+  if (warn_format_extra_args && !warn_format)
+    warning ("-Wformat-extra-args ignored without -Wformat");
+  if (warn_format_zero_length && !warn_format)
+    warning ("-Wformat-zero-length ignored without -Wformat");
+  if (warn_format_nonliteral && !warn_format)
+    warning ("-Wformat-nonliteral ignored without -Wformat");
+  if (warn_format_security && !warn_format)
+    warning ("-Wformat-security ignored without -Wformat");
+  if (warn_missing_format_attribute && !warn_format)
+    warning ("-Wmissing-format-attribute ignored without -Wformat");
+
+  /* If an error has occurred in cpplib, note it so we fail
+     immediately.  */
+  errorcount += cpp_errors (parse_in);
+
+  return flag_preprocess_only;
+}
+
+/* Handle setting implicit to ON.  */
+static void
+set_Wimplicit (on)
+     int on;
+{
+  warn_implicit = on;
+  warn_implicit_int = on;
+  if (on)
+    {
+      if (mesg_implicit_function_declaration != 2)
+	mesg_implicit_function_declaration = 1;
+    }
+  else
+    mesg_implicit_function_declaration = 0;
+}
+
+/* Complain that switch OPT_INDEX expects an argument but none was
+   provided.  */
+static void
+missing_arg (opt_index)
+     size_t opt_index ATTRIBUTE_UNUSED;
+{
+  abort ();
+}
+
+/* Write a slash-separated list of languages in FLAGS to BUF.  */
+static void
+write_langs (buf, flags)
+     char *buf;
+     int flags;
+{
+  *buf = '\0';
+  if (flags & CL_C_ONLY)
+    strcat (buf, "C");
+  if (flags & CL_OBJC_ONLY)
+    {
+      if (*buf)
+	strcat (buf, "/");
+      strcat (buf, "ObjC");
+    }
+  if (flags & CL_CXX_ONLY)
+    {
+      if (*buf)
+	strcat (buf, "/");
+      strcat (buf, "C++");
+    }
+}
+
+/* Complain that switch OPT_INDEX does not apply to this front end.  */
+static void
+complain_wrong_lang (opt_index)
+     size_t opt_index;
+{
+  char ok_langs[60], bad_langs[60];
+  int ok_flags = cl_options[opt_index].flags;
+
+  write_langs (ok_langs, ok_flags);
+  write_langs (bad_langs, ~ok_flags);
+  warning ("\"-%s\" is valid for %s but not for %s",
+	   cl_options[opt_index].opt_text, ok_langs, bad_langs);
+}
============================================================
Index: gcc/c-tree.h
--- gcc/c-tree.h	1 Aug 2002 06:20:31 -0000	1.102
+++ gcc/c-tree.h	5 Aug 2002 06:42:31 -0000
@@ -195,7 +195,6 @@ extern void c_dup_lang_specific_decl		PA
 extern void c_print_identifier			PARAMS ((FILE *, tree, int));
 extern tree build_array_declarator              PARAMS ((tree, tree, int, int));
 extern tree build_enumerator                    PARAMS ((tree, tree));
-extern int  c_decode_option                     PARAMS ((int, char **));
 extern void check_for_loop_decls                PARAMS ((void));
 extern void clear_parm_order                    PARAMS ((void));
 extern int  complete_array_type                 PARAMS ((tree, tree, int));
============================================================
Index: gcc/doc/passes.texi
--- gcc/doc/passes.texi	25 May 2002 22:01:54 -0000	1.9
+++ gcc/doc/passes.texi	5 Aug 2002 06:42:31 -0000
@@ -109,6 +109,7 @@ The files
 @file{c-common.c},
 @file{c-common.def},
 @file{c-format.c},
+@file{c-opts.c},
 @file{c-pragma.c},
 @file{c-semantics.c},
 and
============================================================
Index: gcc/cp/Make-lang.in
--- gcc/cp/Make-lang.in	2 Aug 2002 19:43:25 -0000	1.119
+++ gcc/cp/Make-lang.in	5 Aug 2002 06:42:32 -0000
@@ -96,7 +96,7 @@ $(DEMANGLER_PROG): cxxmain.o underscore.
 # The compiler itself.
 # Shared with C front end:
 CXX_C_OBJS = attribs.o c-common.o c-format.o c-pragma.o c-semantics.o c-lex.o \
-	c-dump.o $(CXX_TARGET_OBJS) c-pretty-print.o
+	c-dump.o $(CXX_TARGET_OBJS) c-pretty-print.o c-opts.o
 
 # Language-specific object files.
 CXX_OBJS = cp/call.o cp/decl.o cp/expr.o cp/pt.o cp/typeck2.o \
============================================================
Index: gcc/cp/cp-lang.c
--- gcc/cp/cp-lang.c	2 Aug 2002 11:57:21 -0000	1.38
+++ gcc/cp/cp-lang.c	5 Aug 2002 06:42:32 -0000
@@ -44,7 +44,7 @@ static tree cp_expr_size PARAMS ((tree))
 #undef LANG_HOOKS_INIT_OPTIONS
 #define LANG_HOOKS_INIT_OPTIONS cxx_init_options
 #undef LANG_HOOKS_DECODE_OPTION
-#define LANG_HOOKS_DECODE_OPTION cxx_decode_option
+#define LANG_HOOKS_DECODE_OPTION c_common_decode_option
 #undef LANG_HOOKS_POST_OPTIONS
 #define LANG_HOOKS_POST_OPTIONS c_common_post_options
 #undef LANG_HOOKS_GET_ALIAS_SET
============================================================
Index: gcc/cp/cp-tree.h
--- gcc/cp/cp-tree.h	4 Aug 2002 14:43:46 -0000	1.741
+++ gcc/cp/cp-tree.h	5 Aug 2002 06:42:33 -0000
@@ -3744,7 +3744,6 @@ extern bool have_extern_spec;
 
 /* in decl2.c */
 extern int check_java_method			PARAMS ((tree));
-extern int cxx_decode_option			PARAMS ((int, char **));
 extern int grok_method_quals			PARAMS ((tree, tree, tree));
 extern void warn_if_unknown_interface		PARAMS ((tree));
 extern void grok_x_components			PARAMS ((tree));
============================================================
Index: gcc/cp/decl2.c
--- gcc/cp/decl2.c	1 Aug 2002 06:20:41 -0000	1.554
+++ gcc/cp/decl2.c	5 Aug 2002 06:42:34 -0000
@@ -89,7 +89,6 @@ static tree prune_vars_needing_no_initia
 static void write_out_vars PARAMS ((tree));
 static void import_export_class	PARAMS ((tree));
 static tree key_method PARAMS ((tree));
-static int compare_options PARAMS ((const PTR, const PTR));
 static tree get_guard_bits PARAMS ((tree));
 
 /* A list of static class variables.  This is needed, because a
@@ -121,323 +120,6 @@ tree static_dtors;
 /* The :: namespace. */
 
 tree global_namespace;
-
-/* Table of language-dependent -f options.
-   STRING is the option name.  VARIABLE is the address of the variable.
-   ON_VALUE is the value to store in VARIABLE
-    if `-fSTRING' is seen as an option.
-   (If `-fno-STRING' is seen as an option, the opposite value is stored.)  */
-
-static const struct { const char *const string; int *const variable; const int on_value;}
-lang_f_options[] =
-{
-  /* C/C++ options.  */
-  {"signed-char", &flag_signed_char, 1},
-  {"unsigned-char", &flag_signed_char, 0},
-  {"signed-bitfields", &flag_signed_bitfields, 1},
-  {"unsigned-bitfields", &flag_signed_bitfields, 0},
-  {"short-enums", &flag_short_enums, 1},
-  {"short-double", &flag_short_double, 1},
-  {"short-wchar", &flag_short_wchar, 1},
-  {"asm", &flag_no_asm, 0},
-  {"builtin", &flag_no_builtin, 0},
-
-  /* C++-only options.  */
-  {"access-control", &flag_access_control, 1},
-  {"check-new", &flag_check_new, 1},
-  {"conserve-space", &flag_conserve_space, 1},
-  {"const-strings", &flag_const_strings, 1},
-  {"default-inline", &flag_default_inline, 1},
-  {"dollars-in-identifiers", &dollars_in_ident, 1},
-  {"elide-constructors", &flag_elide_constructors, 1},
-  {"enforce-eh-specs", &flag_enforce_eh_specs, 1},
-  {"external-templates", &flag_external_templates, 1},
-  {"for-scope", &flag_new_for_scope, 2},
-  {"gnu-keywords", &flag_no_gnu_keywords, 0},
-  {"handle-exceptions", &flag_exceptions, 1},
-  {"implement-inlines", &flag_implement_inlines, 1},
-  {"implicit-inline-templates", &flag_implicit_inline_templates, 1},
-  {"implicit-templates", &flag_implicit_templates, 1},
-  {"ms-extensions", &flag_ms_extensions, 1},
-  {"nonansi-builtins", &flag_no_nonansi_builtin, 0},
-  {"optional-diags", &flag_optional_diags, 1},
-  {"permissive", &flag_permissive, 1},
-  {"repo", &flag_use_repository, 1},
-  {"rtti", &flag_rtti, 1},
-  {"stats", &flag_detailed_statistics, 1},
-  {"vtable-gc", &flag_vtable_gc, 1},
-  {"use-cxa-atexit", &flag_use_cxa_atexit, 1},
-  {"weak", &flag_weak, 1}
-};
-
-/* The list of `-f' options that we no longer support.  The `-f'
-   prefix is not given in this table.  The `-fno-' variants are not
-   listed here.  This table must be kept in alphabetical order.  */
-static const char * const unsupported_options[] = {
-  "all-virtual",
-  "cond-mismatch",
-  "enum-int-equiv",
-  "guiding-decls",
-  "honor-std",
-  "huge-objects",
-  "labels-ok",
-  "new-abi",
-  "nonnull-objects",
-  "squangle",
-  "strict-prototype",
-  "this-is-variable",
-  "vtable-thunks",
-  "xref"
-};
-
-/* Compare two option strings, pointed two by P1 and P2, for use with
-   bsearch.  */
-
-static int
-compare_options (p1, p2)
-     const PTR p1;
-     const PTR p2;
-{
-  return strcmp (*((const char *const *) p1), *((const char *const *) p2));
-}
-
-/* Decode the string P as a language-specific option.
-   Return the number of strings consumed for a valid option.
-   Otherwise return 0.  Should not complain if it does not
-   recognise the option.  */
-
-int   
-cxx_decode_option (argc, argv)
-     int argc;
-     char **argv;
-{
-  int strings_processed;
-  const char *p = argv[0];
-
-  strings_processed = cpp_handle_option (parse_in, argc, argv);
-
-  if (p[0] == '-' && p[1] == 'f')
-    {
-      /* Some kind of -f option.
-	 P's value is the option sans `-f'.
-	 Search for it in the table of options.  */
-      const char *option_value = NULL;
-      const char *positive_option;
-      size_t j;
-
-      p += 2;
-      /* Try special -f options.  */
-
-      /* See if this is one of the options no longer supported.  We
-	 used to support these options, so we continue to accept them,
-	 with a warning.  */
-      if (strncmp (p, "no-", strlen ("no-")) == 0)
-	positive_option = p + strlen ("no-");
-      else
-	positive_option = p;
-
-      /* If the option is present, issue a warning.  Indicate to our
-	 caller that the option was processed successfully.  */
-      if (bsearch (&positive_option, 
-		   unsupported_options, 
-		   ARRAY_SIZE (unsupported_options),
-		   sizeof (unsupported_options[0]),
-		   compare_options))
-	{
-	  warning ("-f%s is no longer supported", p);
-	  return 1;
-	}
-
-      if (!strcmp (positive_option, "handle-exceptions"))
-	warning ("-fhandle-exceptions has been renamed to -fexceptions (and is now on by default)");
-      else if (!strcmp (p, "alt-external-templates"))
-	{
-	  flag_external_templates = 1;
-	  flag_alt_external_templates = 1;
-          cp_deprecated ("-falt-external-templates");
-	}
-      else if (!strcmp (p, "no-alt-external-templates"))
-	flag_alt_external_templates = 0;
-      else if (!strcmp (p, "repo"))
-	{
-	  flag_use_repository = 1;
-	  flag_implicit_templates = 0;
-	}
-      else if (!strcmp (p, "external-templates"))
-        {
-          flag_external_templates = 1;
-          cp_deprecated ("-fexternal-templates");
-        }
-      else if ((option_value
-                = skip_leading_substring (p, "template-depth-")))
-	max_tinst_depth
-	  = read_integral_parameter (option_value, p - 2, max_tinst_depth);
-      else if ((option_value
-                = skip_leading_substring (p, "name-mangling-version-")))
-	{
-	  warning ("-fname-mangling-version is no longer supported");
-	  return 1;
-	}
-      else if ((option_value = skip_leading_substring (p, "no-builtin-")))
-	disable_builtin_function (option_value);
-      else if (dump_switch_p (p))
-	;
-      else 
-	{
-	  int found = 0;
-
-	  for (j = 0; !found && j < ARRAY_SIZE (lang_f_options); j++)
-	    {
-	      if (!strcmp (p, lang_f_options[j].string))
-		{
-		  *lang_f_options[j].variable = lang_f_options[j].on_value;
-		  /* A goto here would be cleaner,
-		     but breaks the VAX pcc.  */
-		  found = 1;
-		}
-	      else if (p[0] == 'n' && p[1] == 'o' && p[2] == '-'
-		       && ! strcmp (p+3, lang_f_options[j].string))
-		{
-		  *lang_f_options[j].variable = ! lang_f_options[j].on_value;
-		  found = 1;
-		}
-	    }
-
-	  return found;
-	}
-    }
-  else if (p[0] == '-' && p[1] == 'W')
-    {
-      int setting = 1;
-
-      /* The -W options control the warning behavior of the compiler.  */
-      p += 2;
-
-      if (p[0] == 'n' && p[1] == 'o' && p[2] == '-')
-	setting = 0, p += 3;
-
-      if (!strcmp (p, "implicit"))
-	warn_implicit = setting;
-      else if (!strcmp (p, "long-long"))
-	warn_long_long = setting;
-      else if (!strcmp (p, "return-type"))
-	warn_return_type = setting;
-      else if (!strcmp (p, "ctor-dtor-privacy"))
-	warn_ctor_dtor_privacy = setting;
-      else if (!strcmp (p, "write-strings"))
-	warn_write_strings = setting;
-      else if (!strcmp (p, "cast-qual"))
-	warn_cast_qual = setting;
-      else if (!strcmp (p, "char-subscripts"))
-	warn_char_subscripts = setting;
-      else if (!strcmp (p, "pointer-arith"))
-	warn_pointer_arith = setting;
-      else if (!strcmp (p, "missing-prototypes"))
-	warn_missing_prototypes = setting;
-      else if (!strcmp (p, "strict-prototypes"))
-	{
-	  if (setting == 0)
-	    warning ("-Wno-strict-prototypes is not supported in C++");
-	}
-      else if (!strcmp (p, "redundant-decls"))
-	warn_redundant_decls = setting;
-      else if (!strcmp (p, "missing-braces"))
-	warn_missing_braces = setting;
-      else if (!strcmp (p, "sign-compare"))
-	warn_sign_compare = setting;
-      else if (!strcmp (p, "float-equal"))
-	warn_float_equal = setting;
-      else if (!strcmp (p, "format"))
-	set_Wformat (setting);
-      else if (!strcmp (p, "format=2"))
-	set_Wformat (2);
-      else if (!strcmp (p, "format-y2k"))
-	warn_format_y2k = setting;
-      else if (!strcmp (p, "format-extra-args"))
-	warn_format_extra_args = setting;
-      else if (!strcmp (p, "format-nonliteral"))
-	warn_format_nonliteral = setting;
-      else if (!strcmp (p, "format-security"))
-	warn_format_security = setting;
-      else if (!strcmp (p, "missing-format-attribute"))
-	warn_missing_format_attribute = setting;
-      else if (!strcmp (p, "conversion"))
-	warn_conversion = setting;
-      else if (!strcmp (p, "parentheses"))
-	warn_parentheses = setting;
-      else if (!strcmp (p, "non-virtual-dtor"))
-	warn_nonvdtor = setting;
-      else if (!strcmp (p, "reorder"))
-	warn_reorder = setting;
-      else if (!strcmp (p, "synth"))
-	warn_synth = setting;
-      else if (!strcmp (p, "pmf-conversions"))
-	warn_pmf2ptr = setting;
-      else if (!strcmp (p, "effc++"))
-	warn_ecpp = setting;
-      else if (!strcmp (p, "sign-promo"))
-	warn_sign_promo = setting;
-      else if (!strcmp (p, "old-style-cast"))
-	warn_old_style_cast = setting;
-      else if (!strcmp (p, "overloaded-virtual"))
-	warn_overloaded_virtual = setting;
-      else if (!strcmp (p, "multichar"))
-	warn_multichar = setting;
-      else if (!strcmp (p, "unknown-pragmas"))
-	/* Set to greater than 1, so that even unknown pragmas in
-	   system headers will be warned about.  */  
-	warn_unknown_pragmas = setting * 2;
-      else if (!strcmp (p, "non-template-friend"))
-	warn_nontemplate_friend = setting;
-      else if (!strcmp (p, "deprecated"))
-        warn_deprecated = setting;
-      else if (!strcmp (p, "all"))
-	{
-	  warn_return_type = setting;
-	  set_Wunused (setting);
-	  warn_implicit = setting;
-	  warn_switch = setting;
-	  set_Wformat (setting);
-	  warn_parentheses = setting;
-	  warn_missing_braces = setting;
-	  warn_sign_compare = setting;
-	  warn_multichar = setting;
-	  /* We save the value of warn_uninitialized, since if they put
-	     -Wuninitialized on the command line, we need to generate a
-	     warning about not using it without also specifying -O.  */
-	  if (warn_uninitialized != 1)
-	    warn_uninitialized = (setting ? 2 : 0);
-	  /* Only warn about unknown pragmas that are not in system
-	     headers.  */                                        
-	  warn_unknown_pragmas = 1;       
-
-	  /* C++-specific warnings.  */
-	  warn_ctor_dtor_privacy = setting;
-	  warn_nonvdtor = setting;
-	  warn_reorder = setting;
-	  warn_nontemplate_friend = setting;           
-	}
-      else return strings_processed;
-    }
-  else if (!strcmp (p, "-E"))
-    flag_preprocess_only = 1;
-  else if (!strcmp (p, "-undef"))
-    flag_undef = 1;
-  else if (!strcmp (p, "-ansi"))
-    flag_no_nonansi_builtin = 1, flag_iso = 1,
-    flag_noniso_default_format_attributes = 0, flag_no_gnu_keywords = 1;
-#ifdef SPEW_DEBUG
-  /* Undocumented, only ever used when you're invoking cc1plus by hand, since
-     it's probably safe to assume no sane person would ever want to use this
-     under normal circumstances.  */
-  else if (!strcmp (p, "-spew-debug"))
-    spew_debug = 1;
-#endif
-  else
-    return strings_processed;
-
-  return 1;
-}
 
 /* Incorporate `const' and `volatile' qualifiers for member functions.
    FUNCTION is a TYPE_DECL or a FUNCTION_DECL.
============================================================
Index: gcc/objc/objc-act.c
--- gcc/objc/objc-act.c	1 Aug 2002 15:43:51 -0000	1.147
+++ gcc/objc/objc-act.c	5 Aug 2002 06:42:36 -0000
@@ -495,47 +495,6 @@ finish_file ()
   if (gen_declaration_file)
     fclose (gen_declaration_file);
 }
-
-int
-objc_decode_option (argc, argv)
-     int argc;
-     char **argv;
-{
-  const char *p = argv[0];
-
-  if (!strcmp (p, "-gen-decls"))
-    flag_gen_declaration = 1;
-  else if (!strcmp (p, "-Wselector"))
-    warn_selector = 1;
-  else if (!strcmp (p, "-Wno-selector"))
-    warn_selector = 0;
-  else if (!strcmp (p, "-Wprotocol"))
-    warn_protocol = 1;
-  else if (!strcmp (p, "-Wno-protocol"))
-    warn_protocol = 0;
-  else if (!strcmp (p, "-fgnu-runtime"))
-    flag_next_runtime = 0;
-  else if (!strcmp (p, "-fno-next-runtime"))
-    flag_next_runtime = 0;
-  else if (!strcmp (p, "-fno-gnu-runtime"))
-    flag_next_runtime = 1;
-  else if (!strcmp (p, "-fnext-runtime"))
-    flag_next_runtime = 1;
-  else if (!strcmp (p, "-print-objc-runtime-info"))
-    print_struct_values = 1;
-#define CSTSTRCLASS "-fconstant-string-class="
-  else if (!strncmp (p, CSTSTRCLASS, sizeof(CSTSTRCLASS) - 2)) {
-    if (strlen (argv[0]) <= strlen (CSTSTRCLASS))
-      error ("no class name specified as argument to -fconstant-string-class");
-    constant_string_class_name = xstrdup(argv[0] + sizeof(CSTSTRCLASS) - 1);
-  }
-#undef CSTSTRCLASS
-  else
-    return c_decode_option (argc, argv);
-
-  return 1;
-}
-
 
 static tree
 define_decl (declarator, declspecs)
============================================================
Index: gcc/objc/objc-act.h
--- gcc/objc/objc-act.h	2 Jul 2002 21:59:30 -0000	1.11
+++ gcc/objc/objc-act.h	5 Aug 2002 06:42:36 -0000
@@ -24,7 +24,6 @@ Boston, MA 02111-1307, USA.  */
 /*** Public Interface (procedures) ***/
 
 const char *objc_init				PARAMS ((const char *));
-int objc_decode_option				PARAMS ((int, char **));
 const char *objc_printable_name			PARAMS ((tree, int));
 
 /* used by yyparse */
============================================================
Index: gcc/objc/objc-lang.c
--- gcc/objc/objc-lang.c	6 Jun 2002 09:25:48 -0000	1.24
+++ gcc/objc/objc-lang.c	5 Aug 2002 06:42:36 -0000
@@ -40,7 +40,7 @@ static void objc_init_options           
 #undef LANG_HOOKS_INIT_OPTIONS
 #define LANG_HOOKS_INIT_OPTIONS objc_init_options
 #undef LANG_HOOKS_DECODE_OPTION
-#define LANG_HOOKS_DECODE_OPTION objc_decode_option
+#define LANG_HOOKS_DECODE_OPTION c_common_decode_option
 #undef LANG_HOOKS_POST_OPTIONS
 #define LANG_HOOKS_POST_OPTIONS c_common_post_options
 #undef LANG_HOOKS_GET_ALIAS_SET
============================================================
Index: gcc/testsuite/objc.dg/const-str-2.m
--- gcc/testsuite/objc.dg/const-str-2.m	23 May 2002 05:54:11 -0000	1.3
+++ gcc/testsuite/objc.dg/const-str-2.m	5 Aug 2002 06:42:36 -0000
@@ -1,7 +1,7 @@
 /* Test the -fconstant-string-class flag error.  */
 /* { dg-do compile } */
-/* { dg-options "-fconstant-string-class" } */
+/* { dg-options "-fconstant-string-class=" } */
 
-{ dg-error "no class name specified as argument to -fconstant-string-class" "" { target *-*-* } 0 }
+{ dg-error "no class name specified" "" { target *-*-* } 0 }
 
 void foo () {}
============================================================
Index: gcc/testsuite/gcc.dg/cpp/c++98-pedantic.C
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gcc/testsuite/gcc.dg/cpp/c++98-pedantic.C	5 Aug 2002 06:42:36 -0000
@@ -0,0 +1,10 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc.  */
+
+/* { dg-do preprocess } */
+/* { dg-options "-std=c++98 -pedantic" } */
+
+/* This file is for testing the preprocessor in -std=c++98 -pedantic mode.
+   Neil Booth, 2 Dec 2000.  */
+
+#if 1LL				/* { dg-warning "long long" } */
+#endif
============================================================
Index: gcc/testsuite/gcc.dg/cpp/c++98-pedantic.c
--- gcc/testsuite/gcc.dg/cpp/c++98-pedantic.c	29 May 2002 17:15:40 -0000	1.2
+++ /dev/null	1 Jan 1970 00:00:00 -0000
@@ -1,10 +0,0 @@
-/* Copyright (C) 2000 Free Software Foundation, Inc.  */
-
-/* { dg-do preprocess } */
-/* { dg-options "-std=c++98 -pedantic" } */
-
-/* This file is for testing the preprocessor in -std=c++98 -pedantic mode.
-   Neil Booth, 2 Dec 2000.  */
-
-#if 1LL				/* { dg-warning "long long" } */
-#endif
============================================================
Index: gcc/testsuite/gcc.dg/cpp/c++98.C
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gcc/testsuite/gcc.dg/cpp/c++98.C	5 Aug 2002 06:42:36 -0000
@@ -0,0 +1,10 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc.  */
+
+/* { dg-do preprocess } */
+/* { dg-options "-std=c++98" } */
+
+/* This file is for testing the preprocessor in -std=c++98 mode.
+   Neil Booth, 2 Dec 2000.  */
+
+#if 1LL
+#endif
============================================================
Index: gcc/testsuite/gcc.dg/cpp/c++98.c
--- gcc/testsuite/gcc.dg/cpp/c++98.c	2 Dec 2000 10:16:01 -0000	1.1
+++ /dev/null	1 Jan 1970 00:00:00 -0000
@@ -1,10 +0,0 @@
-/* Copyright (C) 2000 Free Software Foundation, Inc.  */
-
-/* { dg-do preprocess } */
-/* { dg-options "-std=c++98" } */
-
-/* This file is for testing the preprocessor in -std=c++98 mode.
-   Neil Booth, 2 Dec 2000.  */
-
-#if 1LL
-#endif
============================================================
Index: gcc/testsuite/gcc.dg/cpp/cpp.exp
--- gcc/testsuite/gcc.dg/cpp/cpp.exp	20 Nov 2001 03:51:01 -0000	1.4
+++ gcc/testsuite/gcc.dg/cpp/cpp.exp	5 Aug 2002 06:42:36 -0000
@@ -36,7 +36,7 @@ if ![info exists DEFAULT_CFLAGS] then {
 dg-init
 
 # Main loop.
-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cS\]]] \
+dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cCS\]]] \
 	"" $DEFAULT_CFLAGS
 
 # All done.


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