; Options for the C, ObjC, C++ and ObjC++ front ends.
-; Copyright (C) 2003 Free Software Foundation, Inc.
+; Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
;
; This file is part of GCC.
;
; 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.
-
-
-; This file is processed by the script opts.sh. It is a database of
-; command line options, with each record separated by a blank line,
-; and each field appearing on its own line. The first field is the
-; command-line switch with the leading "-" removed. All options
-; beginning with "f" or "W" are implicitly assumed to take a "no-"
-; form; this form should not be listed. If you do not want this
-; negative form and you want it to be automatically rejected, add
-; RejectNegative to the second field.
-
-; The second field is a space-separated list of which parts of the
-; compiler recognize the switch, as declared by "Language" entries.
-; If the switch takes an argument, then you should also specify
-; "Joined" and/or "Separate" to indicate where the argument can
-; appear. If a Joined argument can legitimately be omitted, specify
-; "JoinedOrMissing" instead of "Joined". If the argument to a switch
-; is a non-negative integer, you can specify "UInteger" and the switch
-; decoder will convert the argument for you, or complain to the user
-; if the argument is invalid.
-
-; The third field is the help text to output with --help. This is
-; automatically line-wrapped on output. Normally the switch is output
-; automatically, with the help text on the right hand side of the
-; output. However, if the help text contains a tab character, the
-; text to the left of the tab is output instead of the switch, and the
-; text to its right forms the help. This is useful for elaborating on
-; what type of argument a switch takes, for example. If the second
-; field contains "Undocumented" then nothing is output with --help.
-; Only do this with good reason like the switch being internal between
-; the driver and the front end - it is not an excuse to leave a switch
-; undocumented.
-
-; Comments can appear on their own line anwhere in the file, preceded
-; by a semicolon. Whitespace is permitted before the semicolon.
-
-; For each switch XXX below, an enumeration constant is created by the
-; script opts.sh spelt OPT_XXX, but with all non-alphanumeric
-; characters replaced with an underscore.
+; Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+; 02110-1301, USA.
+
+; See the GCC internals manual for a description of this file's format.
; Please try to keep this file in ASCII collating order.
E
C ObjC C++ ObjC++ Undocumented
+F
+C ObjC C++ ObjC++ Joined Separate
+-F <dir> Add <dir> to the end of the main framework include path
+
H
C ObjC C++ ObjC++
Print the name of header files as they are used
I
C ObjC C++ ObjC++ Joined Separate
--I <dir> Add <dir> to the end of the main include path. -I- gives more include path control; see info documentation
+-I <dir> Add <dir> to the end of the main include path
M
C ObjC C++ ObjC++
-U<macro> Undefine <macro>
Wabi
-C++ ObjC++
+C++ ObjC++ Var(warn_abi) Warning
+Warn about things that will change when compiling with an ABI-compliant compiler
Wall
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Enable most warning messages
+Wassign-intercept
+ObjC ObjC++ Var(warn_assign_intercept) Warning
+Warn whenever an Objective-C assignment is being intercepted by the garbage collector
+
Wbad-function-cast
-C ObjC
+C ObjC Var(warn_bad_function_cast) Warning
Warn about casting functions to incompatible types
+Wc++-compat
+C Var(warn_cxx_compat) Warning
+Warn about C constructs that are not in the common subset of C and C++
+
+Wc++0x-compat
+C++ ObjC++ Var(warn_cxx0x_compat)
+Warn about C++ constructs whose meaning differs between ISO C++ 1998 and ISO C++ 200x
+
Wcast-qual
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_cast_qual) Warning
Warn about casts which discard qualifiers
Wchar-subscripts
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_char_subscripts) Warning
Warn about subscripts whose type is \"char\"
+Wclobbered
+C ObjC C++ ObjC++ Var(warn_clobbered) Init(-1) Warning
+Warn about variables that might be changed by \"longjmp\" or \"vfork\"
+
Wcomment
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Warn about possibly nested block comments, and C++ comments spanning more than one physical line
Wcomments
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Synonym for -Wcomment
Wconversion
-C ObjC C++ ObjC++
-Warn about possibly confusing type conversions
+C ObjC C++ ObjC++ Var(warn_conversion) Warning
+Warn for implicit type conversions that may change a value
Wctor-dtor-privacy
-C++ ObjC++
+C++ ObjC++ Var(warn_ctor_dtor_privacy) Warning
Warn when all constructors and destructors are private
+Wdeclaration-after-statement
+C ObjC Var(warn_declaration_after_statement) Warning
+Warn when a declaration is found after a statement
+
Wdeprecated
-C++ ObjC++
+C++ ObjC++ Var(warn_deprecated) Init(1) Warning
Warn about deprecated compiler features
Wdiv-by-zero
-C ObjC
+C ObjC C++ Var(warn_div_by_zero) Init(1) Warning
Warn about compile-time integer division by zero
Weffc++
-C++ ObjC++
+C++ ObjC++ Var(warn_ecpp) Warning
Warn about violations of Effective C++ style rules
+Wempty-body
+C ObjC C++ ObjC++ Var(warn_empty_body) Init(-1) Warning
+Warn about an empty body in an if or else statement
+
Wendif-labels
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Warn about stray tokens after #elif and #endif
Werror
; Documented in common.opt
Werror-implicit-function-declaration
-C ObjC RejectNegative
-Make implicit function declarations an error
+C ObjC RejectNegative Warning
+This switch is deprecated; use -Werror=implicit-function-declaration instead
Wfloat-equal
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_float_equal) Warning
Warn if testing floating point numbers for equality
Wformat
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
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) Warning
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) Warning
Warn about format strings that are not literals
Wformat-security
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_format_security) Warning
Warn about possible security problems with format functions
Wformat-y2k
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_format_y2k) Warning
Warn about strftime formats yielding 2-digit years
Wformat-zero-length
-C ObjC
+C ObjC Var(warn_format_zero_length) Warning
+Warn about zero-length formats
Wformat=
-C ObjC C++ ObjC++ Joined
+C ObjC C++ ObjC++ Joined Warning
+
+Winit-self
+C ObjC C++ ObjC++ Var(warn_init_self) Warning
+Warn about variables which are initialized to themselves
Wimplicit
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Wimplicit-function-declaration
-C ObjC
+C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning
Warn about implicit function declarations
Wimplicit-int
-C ObjC
+C ObjC Var(warn_implicit_int) Warning
Warn when a declaration does not specify a type
Wimport
C ObjC C++ ObjC++
-Warn about uses of the \"#import\" directive
+Deprecated. This switch has no effect
+
+Wint-to-pointer-cast
+C ObjC Var(warn_int_to_pointer_cast) Init(1) Warning
+Warn when there is a cast to a pointer from an integer of a different size
Winvalid-offsetof
-C++ ObjC++
+C++ ObjC++ Var(warn_invalid_offsetof) Init(1) Warning
Warn about invalid uses of the \"offsetof\" macro
Winvalid-pch
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
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) Warning
Do not warn about using \"long long\" when -pedantic
Wmain
-C ObjC
+C ObjC Warning
Warn about suspicious declarations of \"main\"
Wmissing-braces
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_missing_braces) Warning
Warn about possibly missing braces around initializers
Wmissing-declarations
-C ObjC
+C ObjC C++ ObjC++ Var(warn_missing_declarations) Warning
Warn about global functions without previous declarations
+Wmissing-field-initializers
+C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1) Warning
+Warn about missing fields in struct initializers
+
Wmissing-format-attribute
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_missing_format_attribute) Warning
Warn about functions which might be candidates for format attributes
+Wmissing-include-dirs
+C ObjC C++ ObjC++ Warning
+Warn about user-specified include directories that do not exist
+
+Wmissing-parameter-type
+C ObjC Var(warn_missing_parameter_type) Init(-1) Warning
+Warn about function parameters declared without a type specifier in K&R-style functions
+
Wmissing-prototypes
-C ObjC
+C ObjC Var(warn_missing_prototypes) Warning
Warn about global functions without prototypes
Wmultichar
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Warn about use of multi-character character constants
Wnested-externs
-C ObjC
+C ObjC Var(warn_nested_externs) Warning
Warn about \"extern\" declarations not at file scope
Wnon-template-friend
-C++ ObjC++
+C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warning
Warn when non-templatized friend functions are declared within a template
Wnon-virtual-dtor
-C++ ObjC++
+C++ ObjC++ Var(warn_nonvdtor) Warning
Warn about non-virtual destructors
Wnonnull
-C ObjC
+C ObjC Var(warn_nonnull) Warning
+Warn about NULL being passed to argument slots marked as requiring non-NULL
+
+Wnormalized=
+C ObjC C++ ObjC++ Joined Warning
+-Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings
Wold-style-cast
-C++ ObjC++
+C++ ObjC++ Var(warn_old_style_cast) Warning
Warn if a C-style cast is used in a program
+Wold-style-declaration
+C ObjC Var(warn_old_style_declaration) Init(-1) Warning
+Warn for obsolescent usage in a declaration
+
+Wold-style-definition
+C ObjC Var(warn_old_style_definition) Warning
+Warn if an old-style parameter definition is used
+
+Woverlength-strings
+C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1) Warning
+Warn if a string is longer than the maximum portable length specified by the standard
+
Woverloaded-virtual
-C++ ObjC++
+C++ ObjC++ Var(warn_overloaded_virtual) Warning
Warn about overloaded virtual function names
+Woverride-init
+C ObjC Var(warn_override_init) Init(-1) Warning
+Warn about overriding initializers without side effects
+
Wparentheses
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_parentheses) Warning
Warn about possibly missing parentheses
Wpmf-conversions
-C++ ObjC++
+C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning
Warn when converting the type of pointers to member functions
Wpointer-arith
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_pointer_arith) Warning
Warn about function pointer arithmetic
+Wpointer-to-int-cast
+C ObjC Var(warn_pointer_to_int_cast) Init(1) Warning
+Warn when a pointer is cast to an integer of a different size
+
+Wpragmas
+C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) Warning
+Warn about misuses of pragmas
+
Wprotocol
-ObjC ObjC++
+ObjC ObjC++ Var(warn_protocol) Init(1) Warning
Warn if inherited methods are unimplemented
Wredundant-decls
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning
Warn about multiple declarations of the same object
Wreorder
-C++ ObjC++
+C++ ObjC++ Var(warn_reorder) Warning
Warn when the compiler reorders code
Wreturn-type
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_return_type) Warning
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) Warning
Warn if a selector has multiple methods
Wsequence-point
-C ObjC
+C ObjC C++ ObjC++ Var(warn_sequence_point) Warning
Warn about possible violations of sequence point rules
Wsign-compare
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1) Warning
Warn about signed-unsigned comparisons
Wsign-promo
-C++ ObjC++
+C++ ObjC++ Var(warn_sign_promo) Warning
Warn when overload promotes from unsigned to signed
+Wstrict-null-sentinel
+C++ ObjC++ Warning
+Warn about uncasted NULL used as sentinel
+
Wstrict-prototypes
-C ObjC
+C ObjC Var(warn_strict_prototypes) Warning
Warn about unprototyped function declarations
+Wstrict-selector-match
+ObjC ObjC++ Var(warn_strict_selector_match) Warning
+Warn if type signatures of candidate methods do not match exactly
+
Wsynth
-C++ ObjC++
+C++ ObjC++ Var(warn_synth) Warning
Warn when synthesis behavior differs from Cfront
Wsystem-headers
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Do not suppress warnings from system headers
Wtraditional
-C ObjC
+C ObjC Var(warn_traditional) Warning
Warn about features not present in traditional C
+Wtraditional-conversion
+C ObjC Var(warn_traditional_conversion) Warning
+Warn of prototypes causing type conversions different from what would happen in the absence of prototype
+
Wtrigraphs
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Warn if trigraphs are encountered that might affect the meaning of the program
Wundeclared-selector
-ObjC ObjC++
+ObjC ObjC++ Var(warn_undeclared_selector) Warning
+Warn about @selector()s without previously declared methods
Wundef
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Warn if an undefined macro is used in an #if directive
Wunknown-pragmas
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Warn about unrecognized pragmas
Wunused-macros
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Warning
Warn about macros defined in the main file that are not used
+Wvariadic-macros
+C ObjC C++ ObjC++ Warning
+Do not warn about using variadic macros when -pedantic
+
Wwrite-strings
-C ObjC C++ ObjC++
-Give strings the type \"array of char\"
+C ObjC C++ ObjC++ Var(warn_write_strings) Warning
+In C++, nonzero means warn about deprecated conversion from string literals to `char *'. In C, similar warning, except that the conversion is of course not deprecated by the ISO C standard.
+
+Wpointer-sign
+C ObjC Var(warn_pointer_sign) Init(-1) Warning
+Warn when a pointer differs in signedness in an assignment
ansi
C ObjC C++ ObjC++
-A synonym for -std=c89. In a future version of GCC it will become synonymous with -std=c99 instead
+A synonym for -std=c89 (for C) or -std=c++98 (for C++)
d
C ObjC C++ ObjC++ Joined
; Documented in common.opt. FIXME - what about -dI, -dD, -dN and -dD?
-fabi-version=
-C++ ObjC++ Joined UInteger
-
faccess-control
C++ ObjC++
Enforce class member access control semantics
C++ ObjC++
Reduce the size of object files
-fconst-strings
-C++ ObjC++
-Make string literals \"const char[]\" not \"char[]\"
-
fconstant-string-class=
ObjC ObjC++ Joined
-fconst-string-class=<name> Use class <name> for constant strings
C ObjC C++ ObjC++
Permit '$' as an identifier character
-fdump-
-C ObjC C++ ObjC++ Joined RejectNegative
--fdump-<type> Dump various compiler internals to a file
-
felide-constructors
C++ ObjC++
C ObjC C++ ObjC++ Joined RejectNegative
-fexec-charset=<cset> Convert all strings and character constants to character set <cset>
-fexternal-templates
-C++ ObjC++
+fextended-identifiers
+C ObjC C++ ObjC++
+Permit universal character names (\\u and \\U) in identifiers
-ffixed-form
-C ObjC
+finput-charset=
+C ObjC C++ ObjC++ Joined RejectNegative
+-finput-charset=<cset> Specify the default character set for source files
-ffixed-line-length-
-C ObjC Joined
+
+fexternal-templates
+C++ ObjC++
ffor-scope
C++ ObjC++
C++ ObjC++
fhandle-exceptions
-C++ ObjC++
+C++ ObjC++ Optimization
fhonor-std
C++ ObjC++
C++ ObjC++
Emit implicit instantiations of templates
+ffriend-injection
+C++ Var(flag_friend_injection)
+Inject friend functions into enclosing namespace
+
flabels-ok
C++ ObjC++
+flax-vector-conversions
+C ObjC C++ ObjC++
+Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types.
+
fms-extensions
C ObjC C++ ObjC++
Don't warn about uses of Microsoft extensions
fnext-runtime
ObjC ObjC++
-Generate code for NeXT runtime environment
+Generate code for NeXT (Apple Mac OS X) runtime environment
+
+fnil-receivers
+ObjC ObjC++
+Assume that receivers of Objective-C messages may be nil
fnonansi-builtins
C++ ObjC++
fnonnull-objects
C++ ObjC++
+; Generate special '- .cxx_construct' and '- .cxx_destruct' methods
+; to initialize any non-POD ivars in Objective-C++ classes.
+fobjc-call-cxx-cdtors
+ObjC++ Var(flag_objc_call_cxx_cdtors)
+Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed
+
+fobjc-direct-dispatch
+ObjC ObjC++ Var(flag_objc_direct_dispatch)
+Allow fast jumps to the message dispatcher
+
+; Nonzero means that we will allow new ObjC exception syntax (@throw,
+; @try, etc.) in source code.
+fobjc-exceptions
+ObjC ObjC++ Var(flag_objc_exceptions)
+Enable Objective-C exception and synchronization syntax
+
+fobjc-gc
+ObjC ObjC++ Var(flag_objc_gc)
+Enable garbage collection (GC) in Objective-C/Objective-C++ programs
+
+; Nonzero means that we generate NeXT setjmp based exceptions.
+fobjc-sjlj-exceptions
+ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1)
+Enable Objective-C setjmp exception handling runtime
+
+fopenmp
+C ObjC C++ ObjC++ Var(flag_openmp)
+Enable OpenMP
+
foperator-names
C++ ObjC++
Recognize C++ kewords like \"compl\" and \"xor\"
fpch-deps
C ObjC C++ ObjC++
+fpch-preprocess
+C ObjC C++ ObjC++
+Look for and use PCH files even when preprocessing
+
fpermissive
C++ ObjC++
Downgrade conformance errors to warnings
C ObjC C++ ObjC++
Treat the input file as already preprocessed
+freplace-objc-classes
+ObjC ObjC++
+Used in Fix-and-Continue mode to indicate that object files may be swapped in at runtime
+
frepo
C++ ObjC++
Enable automatic template instantiation
frtti
-C++ ObjC++
+C++ ObjC++ Optimization
Generate run time type descriptor information
fshort-double
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Optimization
Use the same size for double as for float
fshort-enums
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Optimization
Use the narrowest integer type possible for enumeration types
fshort-wchar
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Optimization
Force the underlying type for \"wchar_t\" to be \"unsigned short\"
-fshow-column
-C ObjC C++ ObjC++
-
fsigned-bitfields
C ObjC C++ ObjC++
When \"signed\" or \"unsigned\" is not given make the bitfield signed
-ftabstop=<number> Distance between tab stops for column reporting
ftemplate-depth-
-C++ ObjC++ Joined RejectNegative UInteger
+C++ ObjC++ Joined RejectNegative UInteger
-ftemplate-depth-<number> Specify maximum template instantiation depth
fthis-is-variable
C++ ObjC++
+fthreadsafe-statics
+C++ ObjC++ Optimization
+-fno-threadsafe-statics Do not generate thread-safe code for initializing local statics
+
funsigned-bitfields
C ObjC C++ ObjC++
When \"signed\" or \"unsigned\" is not given make the bitfield unsigned
C++ ObjC++
Use __cxa_atexit to register destructors
+fuse-cxa-get-exception-ptr
+C++ ObjC++
+Use __cxa_get_exception_ptr in exception handling
+
+fvisibility-inlines-hidden
+C++ ObjC++
+Marks all inlined methods as having hidden visibility
+
fvtable-gc
C++ ObjC++
Discard unused virtual functions
C ObjC C++ ObjC++ Joined RejectNegative
-fwide-exec-charset=<cset> Convert all wide strings and character constants to character set <cset>
+fworking-directory
+C ObjC C++ ObjC++
+Generate a #line directive pointing at the current working directory
+
fxref
C++ ObjC++
Emit cross referencing information
+fzero-link
+ObjC ObjC++
+Generate lazy class lookup (via objc_getClass()) for use in Zero-Link mode
+
gen-decls
ObjC ObjC++
Dump declarations to a .decl file
C ObjC C++ ObjC++ Joined Separate
-imacros <file> Accept definition of macros in <file>
+imultilib
+C ObjC C++ ObjC++ Joined Separate
+-imultilib <dir> Set <dir> to be the multilib include subdirectory
+
include
C ObjC C++ ObjC++ Joined Separate
-include <file> Include the contents of <file> before other files
C ObjC C++ ObjC++ Joined Separate
-isystem <dir> Add <dir> to the start of the system include path
+iquote
+C ObjC C++ ObjC++ Joined Separate
+-iquote <dir> Add <dir> to the end of the quote include path
+
iwithprefix
C ObjC C++ ObjC++ Joined Separate
-iwithprefix <dir> Add <dir> to the end of the system include path
lang-asm
C Undocumented
+lang-fortran
+C Undocumented
+
lang-objc
C ObjC C++ ObjC++ Undocumented
ObjC ObjC++
Generate C header of platform-specific features
+print-pch-checksum
+C ObjC C++ ObjC++
+Print a checksum of the executable for PCH validity checking, and stop
+
remap
C ObjC C++ ObjC++
Remap file names when including files
C++ ObjC++
Conform to the ISO 1998 C++ standard
+std=c++0x
+C++ ObjC++
+Conform to the ISO 1998 C++ standard, with extensions that are likely to
+become a part of the upcoming ISO C++ standard, dubbed C++0x. Note that the
+extensions enabled by this mode are experimental and may be removed in
+future releases of GCC.
+
std=c89
C ObjC
Conform to the ISO 1990 C standard
C++ ObjC++
Conform to the ISO 1998 C++ standard with GNU extensions
+std=gnu++0x
+C++ ObjC++
+Conform to the ISO 1998 C++ standard, with GNU extensions and
+extensions that are likely to become a part of the upcoming ISO C++
+standard, dubbed C++0x. Note that the extensions enabled by this mode
+are experimental and may be removed in future releases of GCC.
+
std=gnu89
C ObjC
Conform to the ISO 1990 C standard with GNU extensions
std=iso9899:1990
C ObjC
-Deprecated in favor of -std=c89
+Conform to the ISO 1990 C standard
std=iso9899:199409
C ObjC
std=iso9899:1999
C ObjC
-Deprecated in favor of -std=c99
+Conform to the ISO 1999 C standard
std=iso9899:199x
C ObjC
-Deprecated in favor of -std=c99
+Deprecated in favor of -std=iso9899:1999
traditional-cpp
C ObjC C++ ObjC++
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