c-common.h (warn_cast_qual, [...]): Remove explicit declarations.

* c-common.h (warn_cast_qual, warn_missing_format_attribute,
warn_pointer_arith, warn_missing_prototypes, warn_parentheses,
warn_missing_braces, warn_sign_compare, warn_long_long,
warn_redundant_decls, warn_float_equal, warn_char_subscripts,
warn_conversion, warn_format_y2k, warn_format_extra_args,
warn_format_zero_length, warn_format_nonliteral,
warn_format_security, mesg_implicit_function_declaration,
warn_bad_function_cast, warn_traditional,
warn_declaration_after_statement, warn_strict_prototypes,
warn_missing_declarations, warn_nested_externs,
warn_sequence_point, warn_init_self, warn_div_by_zero,
warn_implicit_int, warn_nonnull, warn_old_style_definition,
warn_selector, warn_undeclared_selector, warn_protocol,
warn_abi, warn_invalid_offsetof, warn_ctor_dtor_privacy,
warn_overloaded_virtual, warn_nonvdtor, warn_reorder,
warn_synth, warn_pmf2ptr, warn_ecpp, warn_sign_promo,
warn_old_style_cast, warn_nontemplate_friend,
warn_deprecated): Remove explicit declarations.
* c-common.c: Likewise, remove explicit definitions.
* c-opts.c: Likewise, remove explicit assignments.
* c.opts: Likewise, add implicit declare/define/assign.

From-SVN: r83680

1 files changed, 50 insertions, 46 deletions

diff --git a/gcc/c.opt b/gcc/c.opt
index 8898efd..464cab8 100644
--- a/gcc/c.opt
+++ b/gcc/c.opt
@@ -157,22 +157,23 @@ C ObjC C++ ObjC++ Joined Separate
 -U<macro>	Undefine <macro>
 
 Wabi
-C++ ObjC++
+C++ ObjC++ Var(warn_abi)
+Warn about things that will change when compiling with an ABI-compliant compiler
 
 Wall
 C ObjC C++ ObjC++
 Enable most warning messages
 
 Wbad-function-cast
-C ObjC
+C ObjC Var(warn_bad_function_cast)
 Warn about casting functions to incompatible types
 
 Wcast-qual
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_cast_qual)
 Warn about casts which discard qualifiers
 
 Wchar-subscripts
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_char_subscripts)
 Warn about subscripts whose type is \"char\"
 
 Wcomment
@@ -184,27 +185,27 @@ C ObjC C++ ObjC++
 Synonym for -Wcomment
 
 Wconversion
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_conversion)
 Warn about possibly confusing type conversions
 
 Wctor-dtor-privacy
-C++ ObjC++
+C++ ObjC++ Var(warn_ctor_dtor_privacy)
 Warn when all constructors and destructors are private
 
 Wdeclaration-after-statement
-C ObjC
+C ObjC Var(warn_declaration_after_statement)
 Warn when a declaration is found after a statement
 
 Wdeprecated
-C++ ObjC++
+C++ ObjC++ Var(warn_deprecated) Init(1)
 Warn about deprecated compiler features
 
 Wdiv-by-zero
-C ObjC
+C ObjC Var(warn_div_by_zero) Init(1)
 Warn about compile-time integer division by zero
 
 Weffc++
-C++ ObjC++
+C++ ObjC++ Var(warn_ecpp)
 Warn about violations of Effective C++ style rules
 
 Wendif-labels
@@ -220,7 +221,7 @@ C ObjC RejectNegative
 Make implicit function declarations an error
 
 Wfloat-equal
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_float_equal)
 Warn if testing floating point numbers for equality
 
 Wformat
@@ -228,40 +229,41 @@ C ObjC C++ ObjC++
 Warn about printf/scanf/strftime/strfmon format string anomalies
 
 Wformat-extra-args
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_format_extra_args)
 Warn if passing too many arguments to a function for its format string
 
 Wformat-nonliteral
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_format_nonliteral)
 Warn about format strings that are not literals
 
 Wformat-security
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_format_security)
 Warn about possible security problems with format functions
 
 Wformat-y2k
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_format_y2k)
 Warn about strftime formats yielding 2-digit years
 
 Wformat-zero-length
-C ObjC
+C ObjC Var(warn_format_zero_length)
+Warn about zero-length formats
 
 Wformat=
 C ObjC C++ ObjC++ Joined
 
 Winit-self
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_init_self)
 Warn about variables which are initialized to themselves.
 
 Wimplicit
 C ObjC C++ ObjC++
 
 Wimplicit-function-declaration
-C ObjC
+C ObjC Var(mesg_implicit_function_declaration) Init(-1)
 Warn about implicit function declarations
 
 Wimplicit-int
-C ObjC
+C ObjC Var(warn_implicit_int)
 Warn when a declaration does not specify a type
 
 Wimport
@@ -269,7 +271,7 @@ C ObjC C++ ObjC++
 Deprecated.  This switch has no effect.
 
 Winvalid-offsetof
-C++ ObjC++
+C++ ObjC++ Var(warn_invalid_offsetof) Init(1)
 Warn about invalid uses of the \"offsetof\" macro
 
 Winvalid-pch
@@ -277,7 +279,7 @@ C ObjC C++ ObjC++
 Warn about PCH files that are found but not used
 
 Wlong-long
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_long_long) Init(1)
 Do not warn about using \"long long\" when -pedantic
 
 Wmain
@@ -285,15 +287,15 @@ C ObjC
 Warn about suspicious declarations of \"main\"
 
 Wmissing-braces
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_missing_braces)
 Warn about possibly missing braces around initializers
 
 Wmissing-declarations
-C ObjC
+C ObjC Var(warn_missing_declarations)
 Warn about global functions without previous declarations
 
 Wmissing-format-attribute
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_missing_format_attribute)
 Warn about functions which might be candidates for format attributes
 
 Wmissing-include-dirs
@@ -301,7 +303,7 @@ C ObjC C++ ObjC++
 Warn about user-specified include directories that do not exist
 
 Wmissing-prototypes
-C ObjC
+C ObjC Var(warn_missing_prototypes)
 Warn about global functions without prototypes
 
 Wmultichar
@@ -309,54 +311,55 @@ C ObjC C++ ObjC++
 Warn about use of multi-character character constants
 
 Wnested-externs
-C ObjC
+C ObjC Var(warn_nested_externs)
 Warn about \"extern\" declarations not at file scope
 
 Wnon-template-friend
-C++ ObjC++
+C++ ObjC++ Var(warn_nontemplate_friend) Init(1)
 Warn when non-templatized friend functions are declared within a template
 
 Wnon-virtual-dtor
-C++ ObjC++
+C++ ObjC++ Var(warn_nonvdtor)
 Warn about non-virtual destructors
 
 Wnonnull
-C ObjC
+C ObjC Var(warn_nonnull)
+Warn about NULL being passed to argument slots marked as requiring non-NULL
 
 Wold-style-cast
-C++ ObjC++
+C++ ObjC++ Var(warn_old_style_cast)
 Warn if a C-style cast is used in a program
 
 Wold-style-definition
-C ObjC
+C ObjC Var(warn_old_style_definition)
 Warn if an old-style parameter definition is used
 
 Woverloaded-virtual
-C++ ObjC++
+C++ ObjC++ Var(warn_overloaded_virtual)
 Warn about overloaded virtual function names
 
 Wparentheses
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_parentheses)
 Warn about possibly missing parentheses
 
 Wpmf-conversions
-C++ ObjC++
+C++ ObjC++ Var(warn_pmf2ptr) Init(1)
 Warn when converting the type of pointers to member functions
 
 Wpointer-arith
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_pointer_arith)
 Warn about function pointer arithmetic
 
 Wprotocol
-ObjC ObjC++
+ObjC ObjC++ Var(warn_protocol) Init(1)
 Warn if inherited methods are unimplemented
 
 Wredundant-decls
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_redundant_decls)
 Warn about multiple declarations of the same object
 
 Wreorder
-C++ ObjC++
+C++ ObjC++ Var(warn_reorder)
 Warn when the compiler reorders code
 
 Wreturn-type
@@ -364,27 +367,27 @@ C ObjC C++ ObjC++
 Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++)
 
 Wselector
-ObjC ObjC++
+ObjC ObjC++ Var(warn_selector)
 Warn if a selector has multiple methods
 
 Wsequence-point
-C ObjC
+C ObjC Var(warn_sequence_point)
 Warn about possible violations of sequence point rules
 
 Wsign-compare
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1)
 Warn about signed-unsigned comparisons
 
 Wsign-promo
-C++ ObjC++
+C++ ObjC++ Var(warn_sign_promo)
 Warn when overload promotes from unsigned to signed
 
 Wstrict-prototypes
-C ObjC
+C ObjC Var(warn_strict_prototypes)
 Warn about unprototyped function declarations
 
 Wsynth
-C++ ObjC++
+C++ ObjC++ Var(warn_synth)
 Warn when synthesis behavior differs from Cfront
 
 Wsystem-headers
@@ -392,7 +395,7 @@ C ObjC C++ ObjC++
 Do not suppress warnings from system headers
 
 Wtraditional
-C ObjC
+C ObjC Var(warn_traditional)
 Warn about features not present in traditional C
 
 Wtrigraphs
@@ -400,7 +403,8 @@ C ObjC C++ ObjC++
 Warn if trigraphs are encountered that might affect the meaning of the program
 
 Wundeclared-selector
-ObjC ObjC++
+ObjC ObjC++ Var(warn_undeclared_selector)
+Warn about @selector()s without previously declared methods
 
 Wundef
 C ObjC C++ ObjC++