; Options for the C, ObjC, C++ and ObjC++ front ends.
; Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
;
; 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, 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.

Language
C

Language
ObjC

Language
C++

Language
ObjC++

-output-pch=
C ObjC C++ ObjC++ Joined Separate

A
C ObjC C++ ObjC++ Joined Separate
-A<question>=<answer>	Assert the <answer> to <question>.  Putting '-' before <question> disables the <answer> to <question>

C
C ObjC C++ ObjC++
Do not discard comments

CC
C ObjC C++ ObjC++
Do not discard comments in macro expansions

D
C ObjC C++ ObjC++ Joined Separate
-D<macro>[=<val>]	Define a <macro> with <val> as its value.  If just <macro> is given, <val> is taken to be 1

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

M
C ObjC C++ ObjC++
Generate make dependencies

MD
C ObjC C++ ObjC++ Separate
Generate make dependencies and compile

MF
C ObjC C++ ObjC++ Joined Separate
-MF <file>	Write dependency output to the given file

MG
C ObjC C++ ObjC++
Treat missing header files as generated files

MM
C ObjC C++ ObjC++
Like -M but ignore system header files

MMD
C ObjC C++ ObjC++ Separate
Like -MD but ignore system header files

MP
C ObjC C++ ObjC++
Generate phony targets for all headers

MQ
C ObjC C++ ObjC++ Joined Separate
-MQ <target>	Add a MAKE-quoted target

MT
C ObjC C++ ObjC++ Joined Separate
-MT <target>	Add an unquoted target

P
C ObjC C++ ObjC++
Do not generate #line directives

U
C ObjC C++ ObjC++ Joined Separate
-U<macro>	Undefine <macro>

; APPLE LOCAL begin -Wno-#warnings
W#warnings
C ObjC C++ ObjC++
Enable #warning
; APPLE LOCAL end -Wno-#warnings

Wabi
C++ ObjC++ Var(warn_abi)
Warn about things that will change when compiling with an ABI-compliant compiler

Waddress
C ObjC C++ ObjC++ Var(warn_address)
Warn about suspicious uses of memory addresses

Wall
C ObjC C++ ObjC++
Enable most warning messages

Wassign-intercept
ObjC ObjC++ Var(warn_assign_intercept)
Warn whenever an Objective-C assignment is being intercepted by the garbage collector

Wbad-function-cast
C ObjC Var(warn_bad_function_cast)
Warn about casting functions to incompatible types

Wc++-compat
C ObjC Var(warn_cxx_compat)
Warn about C constructs that are not in the common subset of C and C++


Wcast-qual
C ObjC C++ ObjC++ Var(warn_cast_qual)
Warn about casts which discard qualifiers

Wchar-subscripts
C ObjC C++ ObjC++ Var(warn_char_subscripts)
Warn about subscripts whose type is \"char\"

Wcomment
C ObjC C++ ObjC++
Warn about possibly nested block comments, and C++ comments spanning more than one physical line

Wcomments
C ObjC C++ ObjC++
Synonym for -Wcomment

Wconversion
C ObjC C++ ObjC++ Var(warn_conversion)
Warn about possibly confusing type conversions

; APPLE LOCAL begin mainline
; This is superseded in mainline by Wconversion
Wshorten-64-to-32
C ObjC C++ ObjC++ Var(warn_shorten_64_to_32)
Warn if a value is implicitly converted from a 64 bit type to a 32 bit type
; APPLE LOCAL end mainline

Wctor-dtor-privacy
C++ ObjC++ Var(warn_ctor_dtor_privacy)
Warn when all constructors and destructors are private

Wdeclaration-after-statement
C ObjC Var(warn_declaration_after_statement)
Warn when a declaration is found after a statement

Wdeprecated
C++ ObjC++ Var(warn_deprecated) Init(1)
Warn about deprecated compiler features

; APPLE LOCAL begin -Wdiscard-qual 4086969
Wdiscard-qual
C ObjC Var(warn_discard_qual) Init(1)
Warn about discarded qualifiers
; APPLE LOCAL end -Wdiscard-qual 4086969

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++ Var(warn_ecpp)
Warn about violations of Effective C++ style rules

; APPLE LOCAL begin mainline
Wempty-body
C ObjC C++ ObjC++ Var(warn_empty_body) Init(-1) Warning
Warn about an empty body in an if or else statement
; APPLE LOCAL end mainline

Wendif-labels
C ObjC C++ ObjC++
Warn about stray tokens after #elif and #endif

Werror
C ObjC C++ ObjC++
; Documented in common.opt

Werror-implicit-function-declaration
C ObjC RejectNegative
Make implicit function declarations an error

; APPLE LOCAL begin -Wextra-tokens
Wextra-tokens
C ObjC C++ ObjC++
Warn about extra tokens at the end of prepreprocessor directives
; APPLE LOCAL end -Wextra-tokens

Wfloat-equal
C ObjC C++ ObjC++ Var(warn_float_equal)
Warn if testing floating point numbers for equality

Wformat
C ObjC C++ ObjC++
Warn about printf/scanf/strftime/strfmon format string anomalies

Wformat-extra-args
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++ Var(warn_format_nonliteral)
Warn about format strings that are not literals

; APPLE LOCAL begin default to Wformat-security 5764921
; LLVM LOCAL begin don't initialize this
Wformat-security
C ObjC C++ ObjC++
Warn about possible security problems with format functions
; LLVM LOCAL end don't initialize this
; APPLE LOCAL end default to Wformat-security 5764921

Wformat-y2k
C ObjC C++ ObjC++ Var(warn_format_y2k)
Warn about strftime formats yielding 2-digit years

; LLVM LOCAL begin enable for C++
Wformat-zero-length
C ObjC C++ ObjC++ Var(warn_format_zero_length)
Warn about zero-length formats
; LLVM LOCAL end enable for C++

Wformat=
C ObjC C++ ObjC++ Joined

; APPLE LOCAL begin -Wfour-char-constants
Wfour-char-constants
C ObjC C++ ObjC++
Warn about multicharacter constants containing exactly four characters
; APPLE LOCAL end -Wfour-char-constants

; APPLE LOCAL begin Wglobal-constructors 6324584
Wglobal-constructors
C ObjC C++ ObjC++ Var(warn_global_constructors)
Warn when global (namespace scope) objects require runtime
construction or destruction or when functions that use attribute
constructor or destructor are used.  This is useful to help maintain
fast program startup and end times.
; APPLE LOCAL end Wglobal-constructors 6324584

Winit-self
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 Var(mesg_implicit_function_declaration) Init(-1)
Warn about implicit function declarations

Wimplicit-int
C ObjC Var(warn_implicit_int)
Warn when a declaration does not specify a type

Wimport
C ObjC C++ ObjC++
Deprecated.  This switch has no effect

Wint-to-pointer-cast
C ObjC Var(warn_int_to_pointer_cast) Init(1)
Warn when there is a cast to a pointer from an integer of a different size

Winvalid-offsetof
C++ ObjC++ Var(warn_invalid_offsetof) Init(1)
Warn about invalid uses of the \"offsetof\" macro

Winvalid-pch
C ObjC C++ ObjC++
Warn about PCH files that are found but not used

Wlong-long
C ObjC C++ ObjC++ Var(warn_long_long) Init(1)
Do not warn about using \"long long\" when -pedantic

Wmain
C ObjC
Warn about suspicious declarations of \"main\"

Wmissing-braces
C ObjC C++ ObjC++ Var(warn_missing_braces)
Warn about possibly missing braces around initializers

Wmissing-declarations
C ObjC Var(warn_missing_declarations)
Warn about global functions without previous declarations

Wmissing-field-initializers
C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1)
Warn about missing fields in struct initializers

Wmissing-format-attribute
C ObjC C++ ObjC++ Var(warn_missing_format_attribute)
Warn about functions which might be candidates for format attributes

Wmissing-include-dirs
C ObjC C++ ObjC++
Warn about user-specified include directories that do not exist

; APPLE LOCAL begin warn missing prototype 6261539
Wmissing-prototypes
C ObjC C++ ObjC++ Var(warn_missing_prototypes)
Warn about global functions without prototypes
; APPLE LOCAL end warn missing prototype 6261539

; APPLE LOCAL begin -Wmost
Wmost
C ObjC C++ ObjC++ 
Like -Wall but without -Wparentheses
; APPLE LOCAL end -Wmost

Wmultichar
C ObjC C++ ObjC++
Warn about use of multi-character character constants

Wnested-externs
C ObjC Var(warn_nested_externs)
Warn about \"extern\" declarations not at file scope

; APPLE LOCAL begin -Wnewline-eof
Wnewline-eof
C ObjC C++ ObjC++
Warn about files missing a newline at the end of the file
; APPLE LOCAL end -Wnewline-eof

; APPLE LOCAL begin non lvalue assign
Wnon-lvalue-assign
C ObjC C++ ObjC++ Var(warn_non_lvalue_assign) Init(1)
Warn about assignment to casts and conditional expressions of lvalues
; APPLE LOCAL end non lvalue assign

; APPLE LOCAL begin radar 5376125
Wdirect-ivar-access
ObjC ObjC++ Var(warn_direct_ivar_access)
Warn about direct access to gc-enabled ivars
; APPLE LOCAL end radar 5376125

Wnon-template-friend
C++ ObjC++ Var(warn_nontemplate_friend) Init(1)
Warn when non-templatized friend functions are declared within a template

Wnon-virtual-dtor
C++ ObjC++ Var(warn_nonvdtor)
Warn about non-virtual destructors

; APPLE LOCAL begin turn on for C++/Objective-C++
Wnonnull
C ObjC C++ ObjC++ Var(warn_nonnull)
Warn about NULL being passed to argument slots marked as requiring non-NULL
; APPLE LOCAL end turn on for C++/Objective-C++

Wnormalized=
C ObjC C++ ObjC++ Joined
-Wnormalized=<id|nfc|nfkc>	Warn about non-normalised Unicode strings

Wold-style-cast
C++ ObjC++ Var(warn_old_style_cast)
Warn if a C-style cast is used in a program

Wold-style-definition
C ObjC Var(warn_old_style_definition)
Warn if an old-style parameter definition is used

Woverlength-strings
C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1)
Warn if a string is longer than the maximum portable length specified by the standard

Woverloaded-virtual
C++ ObjC++ Var(warn_overloaded_virtual)
Warn about overloaded virtual function names

Woverride-init
C ObjC Var(warn_override_init) Init(-1)
Warn about overriding initializers without side effects

Wparentheses
C ObjC C++ ObjC++ Var(warn_parentheses)
Warn about possibly missing parentheses

Wpmf-conversions
C++ ObjC++ Var(warn_pmf2ptr) Init(1)
Warn when converting the type of pointers to member functions

Wpointer-arith
C ObjC C++ ObjC++ Var(warn_pointer_arith)
Warn about function pointer arithmetic

Wpointer-to-int-cast
C ObjC Var(warn_pointer_to_int_cast) Init(1)
Warn when a pointer is cast to an integer of a different size

Wpragmas
C ObjC C++ ObjC++ Var(warn_pragmas) Init(1)
Warn about misuses of pragmas

Wprotocol
ObjC ObjC++ Var(warn_protocol) Init(1)
Warn if inherited methods are unimplemented

; APPLE LOCAL begin radar 5172645
Wproperty-assign-default
ObjC ObjC++ Var(warn_property_assign_default) Init(1)
Warn if no attribute specified on property of pointer to object type (defaulted to assign)
; APPLE LOCAL end radar 5172645

Wredundant-decls
C ObjC C++ ObjC++ Var(warn_redundant_decls)
Warn about multiple declarations of the same object

Wreorder
C++ ObjC++ Var(warn_reorder)
Warn when the compiler reorders code

Wreturn-type
C ObjC C++ ObjC++ Var(warn_return_type)
Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++)

Wselector
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++ Var(warn_sign_compare) Init(-1)
Warn about signed-unsigned comparisons

Wsign-promo
C++ ObjC++ Var(warn_sign_promo)
Warn when overload promotes from unsigned to signed

Wstrict-null-sentinel
C++ ObjC++
Warn about uncasted NULL used as sentinel

Wstrict-prototypes
C ObjC Var(warn_strict_prototypes)
Warn about unprototyped function declarations

Wstrict-selector-match
ObjC ObjC++ Var(warn_strict_selector_match)
Warn if type signatures of candidate methods do not match exactly

Wsynth
C++ ObjC++ Var(warn_synth)
Warn when synthesis behavior differs from Cfront

Wsystem-headers
C ObjC C++ ObjC++
Do not suppress warnings from system headers

Wtraditional
C ObjC Var(warn_traditional)
Warn about features not present in traditional C

Wtrigraphs
C ObjC C++ ObjC++
Warn if trigraphs are encountered that might affect the meaning of the program

Wundeclared-selector
ObjC ObjC++ Var(warn_undeclared_selector)
Warn about @selector()s without previously declared methods

Wundef
C ObjC C++ ObjC++
Warn if an undefined macro is used in an #if directive

Wunknown-pragmas
C ObjC C++ ObjC++
Warn about unrecognized pragmas

Wunused-macros
C ObjC C++ ObjC++
Warn about macros defined in the main file that are not used

Wvariadic-macros
C ObjC C++ ObjC++
Do not warn about using variadic macros when -pedantic

Wwrite-strings
C ObjC C++ ObjC++ Var(warn_write_strings)
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)
Warn when a pointer differs in signedness in an assignment

ansi
C ObjC C++ ObjC++
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?

faccess-control
C++ ObjC++
Enforce class member access control semantics

fall-virtual
C++ ObjC++

falt-external-templates
C++ ObjC++
Change when template instances are emitted

; APPLE LOCAL begin Altivec 3837840
faltivec
C ObjC C++ ObjC++ Var(flag_faltivec)
Enable Altivec
; APPLE LOCAL end Altivec 3837840

fasm
C ObjC C++ ObjC++
Recognize the \"asm\" keyword

; APPLE LOCAL begin CW asm blocks
fasm-blocks
C ObjC C++ ObjC++
Handle CW-style assembly blocks

fms-asms
C ObjC C++ ObjC++ Var(flag_ms_asms)
When handling assembly blocks, use MW-style assembly blocks
; APPLE LOCAL end CW asm blocks

; APPLE LOCAL begin -fast or -fastf or -fastcp
fast
C ObjC C++ ObjC++
Used for c or c++ optimization

fastcp
C++ ObjC++
Used when C++ specific optimization is needed

fastf
C ObjC
Used when c is generated from NAG fortran
; APPLE LOCAL end -fast or -fastf or -fastcp

fbuiltin
C ObjC C++ ObjC++
Recognize built-in functions

fbuiltin-
C ObjC C++ ObjC++ Joined

fcheck-new
C++ ObjC++
Check the return value of new

; APPLE LOCAL begin ARM structor thunks
; Nonzero if we prefer to clone con/de/structors.  Alternative is to
; gen multiple tiny thunk-esque things that call/jump to a unified
; con/de/structor.  This is a classic size/speed tradeoff.
fclone-structors
C++ ObjC++ Var(flag_clone_structors)
Factor out certain duplicate code in constructors and destructors
; APPLE LOCAL end ARM structor thunks

fcond-mismatch
C ObjC C++ ObjC++
Allow the arguments of the '?' operator to have different types

fconserve-space
C++ ObjC++
Reduce the size of object files

fconstant-string-class=
ObjC ObjC++ Joined
-fconst-string-class=<name>	Use class <name> for constant strings

fdefault-inline
C++ ObjC++
Inline member functions by default

; APPLE LOCAL begin disable_typechecking_for_spec_flag
fdisable-typechecking-for-spec
C C++
Make crossfile type mismatches warnings not errors (for SPEC)
; APPLE LOCAL end disable_typechecking_for_spec_flag

fdollars-in-identifiers
C ObjC C++ ObjC++
Permit '$' as an identifier character

felide-constructors
C++ ObjC++

fenforce-eh-specs
C++ ObjC++
Generate code to check exception specifications

fenum-int-equiv
C++ ObjC++

fexec-charset=
C ObjC C++ ObjC++ Joined RejectNegative
-fexec-charset=<cset>	Convert all strings and character constants to character set <cset>

fextended-identifiers
C ObjC C++ ObjC++
Permit universal character names (\\u and \\U) in identifiers

finput-charset=
C ObjC C++ ObjC++ Joined RejectNegative
-finput-charset=<cset>	Specify the default character set for source files


fexternal-templates
C++ ObjC++

ffor-scope
C++ ObjC++
Scope of for-init-statement variables is local to the loop

ffreestanding
C ObjC
Do not assume that standard C libraries and \"main\" exist

fgnu-keywords
C++ ObjC++
Recognize GNU-defined keywords

fgnu-runtime
ObjC ObjC++
Generate code for GNU runtime environment

fgnu89-inline
C ObjC Var(flag_gnu89_inline) Init(-1)
Use traditional GNU semantics for inline functions

fguiding-decls
C++ ObjC++

fhandle-exceptions
C++ ObjC++

fhonor-std
C++ ObjC++

fhosted
C ObjC
Assume normal C execution environment

fhuge-objects
C++ ObjC++
Enable support for huge objects

fimplement-inlines
C++ ObjC++
Export functions even if they can be inlined

fimplicit-inline-templates
C++ ObjC++
Emit implicit instantiations of inline templates

fimplicit-templates
C++ ObjC++
Emit implicit instantiations of templates

ffriend-injection
C++ ObjC++ Var(flag_friend_injection)
Inject friend functions into enclosing namespace

flabels-ok
C++ ObjC++

; APPLE LOCAL begin 5612787 mainline sse4
flax-vector-conversions
C ObjC C++ ObjC++
Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types.
; APPLE LOCAL end 5612787 mainline sse4

fms-extensions
C ObjC C++ ObjC++
Don't warn about uses of Microsoft extensions

fname-mangling-version-
C++ ObjC++ Joined

fnew-abi
C++ ObjC++

; APPLE LOCAL begin nested functions 4258406 4357979
fnested-functions
C ObjC Var(flag_nested_functions)
Allow nested functions.
; APPLE LOCAL end nested functions 4258406 4357979

fnext-runtime
ObjC ObjC++
Generate code for NeXT (Apple Mac OS X) runtime environment

fnil-receivers
ObjC ObjC++
Assume that receivers of Objective-C messages may be nil

; APPLE LOCAL begin non lvalue assign
fnon-lvalue-assign
C ObjC C++ ObjC++ Var(flag_non_lvalue_assign) Init(1)
Allow assignment to casts and conditional expressions of lvalues
; APPLE LOCAL end non lvalue assign

fnonansi-builtins
C++ ObjC++

fnonnull-objects
C++ ObjC++

; APPLE LOCAL begin radar 4705250
fobjc-atdefs
ObjC ObjC++ Var(flag_objc_atdefs) Init(-1)
Allow use of @defs
; APPLE LOCAL end radar 4705250

; APPLE LOCAL begin objc2
; 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) Init(-1)
Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed
; APPLE LOCAL end objc2

; APPLE LOCAL begin radar 4590221
fobjc-direct-dispatch
ObjC ObjC++ Var(flag_objc_direct_dispatch) Init(-1)
Allow fast jumps to the message dispatcher
; APPLE LOCAL end radar 4590221

; 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

; APPLE LOCAL begin ARM hybrid objc-2.0
fobjc-legacy-dispatch
ObjC ObjC++ Var(flag_objc_legacy_dispatch) Init(-1)
Use Objective-C v1 message dispatching
; APPLE LOCAL end ARM hybrid objc-2.0

; APPLE LOCAL begin radar 2848255
fobjc-zerocost-exceptions
ObjC ObjC++ Var(flag_objc_zerocost_exceptions) Init(0)
Enable Objective-C zero-cost exception
; APPLE LOCAL end radar 2848255

; APPLE LOCAL begin objc new property - not for  merge to the FSF
fobjc-new-property
C C++ ObjC ObjC++ Var(flag_objc_new_property) Init(1)
Enable Objective-C new property syntax and semantics
; APPLE LOCAL end objc new property - not for  merge to the FSF

; APPLE LOCAL begin radar 5435299 - radar 6173152 
fnew-property-ivar-synthesis
ObjC ObjC++ Var(flag_new_property_ivar_synthesis) Init(1)
Enable new style of fragile-ivar synthesis for properties
; APPLE LOCAL end radar 5435299 - radar 6173152 

; APPLE LOCAL begin radar 4810609
fobjc-gc-only
ObjC ObjC++ Var(flag_objc_gc_only)  Init(0)
Program only supprts (GC) in ObjC/ObjC++ programs
; APPLE LOCAL end radar 4810609

fobjc-gc
ObjC ObjC++ Var(flag_objc_gc)
Enable garbage collection (GC) in Objective-C/Objective-C++ programs

; APPLE LOCAL begin radar 5811887 - blocks
fblocks
C ObjC C++ ObjC++ Var(flag_blocks) Init(-1)
Program supports c/objc extension blocks
; APPLE LOCAL end radar 5811887 - blocks

; 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\"

foptional-diags
C++ ObjC++
Enable optional diagnostics

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

fpreprocessed
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++
Generate run time type descriptor information

; APPLE LOCAL begin ss2
fsave-repository=
C ObjC C++ ObjC++ Joined Separate
; APPLE LOCAL end ss2

fshort-double
C ObjC C++ ObjC++
Use the same size for double as for float

fshort-enums
C ObjC C++ ObjC++
Use the narrowest integer type possible for enumeration types

fshort-wchar
C ObjC C++ ObjC++
Force the underlying type for \"wchar_t\" to be \"unsigned short\"

fsigned-bitfields
C ObjC C++ ObjC++
When \"signed\" or \"unsigned\" is not given make the bitfield signed

fsigned-char
C ObjC C++ ObjC++
Make \"char\" signed by default

fsquangle
C++ ObjC++

fstats
C++ ObjC++
Display statistics accumulated during compilation

fstrict-prototype
C++ ObjC++

ftabstop=
C ObjC C++ ObjC++ Joined RejectNegative UInteger
-ftabstop=<number>	Distance between tab stops for column reporting

ftemplate-depth-
C++ ObjC++ Joined RejectNegative UInteger
-ftemplate-depth-<number>	Specify maximum template instantiation depth

fthis-is-variable
C++ ObjC++

fthreadsafe-statics
C++ ObjC++
-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

funsigned-char
C ObjC C++ ObjC++
Make \"char\" unsigned by default

fuse-cxa-atexit
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

; APPLE LOCAL begin mainline 2007-06-28 ms tinfo compat 4230099
fvisibility-ms-compat
C++ ObjC++ Var(flag_visibility_ms_compat)
Changes visibility to match Microsoft Visual Studio by default
; APPLE LOCAL end mainline 2007-06-28 ms tinfo compat 4230099

fvtable-gc
C++ ObjC++
Discard unused virtual functions

fvtable-thunks
C++ ObjC++
Implement vtables using thunks

fweak
C++ ObjC++
Emit common-like symbols as weak symbols

fwide-exec-charset=
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

idirafter
C ObjC C++ ObjC++ Joined Separate
-idirafter <dir>	Add <dir> to the end of the system include path

imacros
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

iprefix
C ObjC C++ ObjC++ Joined Separate
-iprefix <path>	Specify <path> as a prefix for next two options

isysroot
C ObjC C++ ObjC++ Joined Separate
-isysroot <dir>	Set <dir> to be the system root directory

isystem
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

iwithprefixbefore
C ObjC C++ ObjC++ Joined Separate
-iwithprefixbefore <dir>	Add <dir> to the end of the main include path

; APPLE LOCAL begin ARM iwithsysroot 4917039
iwithsysroot
C ObjC C++ ObjC++ Joined Separate
-iwithsysroot <dir> Add <sysroot>/<dir> to the start of the system include path
; APPLE LOCAL end ARM iwithsysroot 4917039

lang-asm
C Undocumented

lang-fortran
C Undocumented

lang-objc
C ObjC C++ ObjC++ Undocumented

nostdinc
C ObjC C++ ObjC++
Do not search standard system include directories (those specified with -isystem will still be used)

nostdinc++
C++ ObjC++
Do not search standard system include directories for C++

o
C ObjC C++ ObjC++ Joined Separate
; Documented in common.opt

pedantic
C ObjC C++ ObjC++
; Documented in common.opt

pedantic-errors
C ObjC C++ ObjC++
; Documented in common.opt

print-objc-runtime-info
ObjC ObjC++
Generate C header of platform-specific features

; APPLE LOCAL begin radar 5082000
print-objc-ivar-layout
ObjC ObjC++
Generate GC ivar layout information
; APPLE LOCAL end radar 5082000

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

std=c++98
C++ ObjC++
Conform to the ISO 1998 C++ standard

std=c89
C ObjC
Conform to the ISO 1990 C standard

std=c99
C ObjC
Conform to the ISO 1999 C standard

std=c9x
C ObjC
Deprecated in favor of -std=c99

std=gnu++98
C++ ObjC++
Conform to the ISO 1998 C++ standard with GNU extensions

std=gnu89
C ObjC
Conform to the ISO 1990 C standard with GNU extensions

std=gnu99
C ObjC
Conform to the ISO 1999 C standard with GNU extensions

std=gnu9x
C ObjC
Deprecated in favor of -std=gnu99

std=iso9899:1990
C ObjC
Conform to the ISO 1990 C standard

std=iso9899:199409
C ObjC
Conform to the ISO 1990 C standard as amended in 1994

std=iso9899:1999
C ObjC
Conform to the ISO 1999 C standard

std=iso9899:199x
C ObjC
Deprecated in favor of -std=iso9899:1999

traditional-cpp
C ObjC C++ ObjC++
Enable traditional preprocessing

trigraphs
C ObjC C++ ObjC++
-trigraphs	Support ISO C trigraphs

undef
C ObjC C++ ObjC++
Do not predefine system-specific and GCC-specific macros

v
C ObjC C++ ObjC++
Enable verbose output

w
C ObjC C++ ObjC++
; Documented in common.opt

; This comment is to ensure we retain the blank line above.