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+; Options for the C, ObjC, C++ and ObjC++ front ends.
+; Copyright (C) 2003-2014 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 3, 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 COPYING3. If not see
+; <http://www.gnu.org/licenses/>.
+
+; 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++
+
+-all-warnings
+C ObjC C++ ObjC++ Warning Alias(Wall)
+
+-ansi
+C ObjC C++ ObjC++ Alias(ansi)
+
+-assert
+C ObjC C++ ObjC++ Separate Alias(A) MissingArgError(assertion missing after %qs)
+
+-assert=
+C ObjC C++ ObjC++ Joined Alias(A) MissingArgError(assertion missing after %qs)
+
+-comments
+C ObjC C++ ObjC++ Alias(C)
+
+-comments-in-macros
+C ObjC C++ ObjC++ Alias(CC)
+
+-define-macro
+C ObjC C++ ObjC++ Separate Alias(D) MissingArgError(macro name missing after %qs)
+
+-define-macro=
+C ObjC C++ ObjC++ Joined Alias(D) MissingArgError(macro name missing after %qs)
+
+-dependencies
+C ObjC C++ ObjC++ Alias(M)
+
+-dump
+C ObjC C++ ObjC++ Separate Alias(d)
+
+-dump=
+C ObjC C++ ObjC++ Joined Alias(d)
+
+-imacros
+C ObjC C++ ObjC++ Separate Alias(imacros) MissingArgError(missing filename after %qs)
+
+-imacros=
+C ObjC C++ ObjC++ Joined Alias(imacros) MissingArgError(missing filename after %qs)
+
+-include
+C ObjC C++ ObjC++ Separate Alias(include) MissingArgError(missing filename after %qs)
+
+-include=
+C ObjC C++ ObjC++ Joined Alias(include) MissingArgError(missing filename after %qs)
+
+-include-barrier
+C ObjC C++ ObjC++ Alias(I, -)
+
+-include-directory
+C ObjC C++ ObjC++ Separate Alias(I) MissingArgError(missing path after %qs)
+
+-include-directory=
+C ObjC C++ ObjC++ Joined Alias(I) MissingArgError(missing path after %qs)
+
+-include-directory-after
+C ObjC C++ ObjC++ Separate Alias(idirafter) MissingArgError(missing path after %qs)
+
+-include-directory-after=
+C ObjC C++ ObjC++ Joined Alias(idirafter) MissingArgError(missing path after %qs)
+
+-include-prefix
+C ObjC C++ ObjC++ Separate Alias(iprefix)
+
+-include-prefix=
+C ObjC C++ ObjC++ JoinedOrMissing Alias(iprefix)
+
+-include-with-prefix
+C ObjC C++ ObjC++ Separate Alias(iwithprefix)
+
+-include-with-prefix=
+C ObjC C++ ObjC++ JoinedOrMissing Alias(iwithprefix)
+
+-include-with-prefix-after
+C ObjC C++ ObjC++ Separate Alias(iwithprefix)
+
+-include-with-prefix-after=
+C ObjC C++ ObjC++ JoinedOrMissing Alias(iwithprefix)
+
+-include-with-prefix-before
+C ObjC C++ ObjC++ Separate Alias(iwithprefixbefore)
+
+-include-with-prefix-before=
+C ObjC C++ ObjC++ JoinedOrMissing Alias(iwithprefixbefore)
+
+-no-integrated-cpp
+Driver Alias(no-integrated-cpp)
+
+-no-line-commands
+C ObjC C++ ObjC++ Alias(P)
+
+-no-standard-includes
+C ObjC C++ ObjC++ Alias(nostdinc)
+
+-no-warnings
+C ObjC C++ ObjC++ Alias(w)
+
+-output
+C ObjC C++ ObjC++ Separate Alias(o)
+
+-output=
+C ObjC C++ ObjC++ Joined Alias(o)
+
+-output-pch=
+C ObjC C++ ObjC++ Joined Separate
+
+-pedantic
+C ObjC C++ ObjC++ Alias(pedantic)
+
+-preprocess
+C ObjC C++ ObjC++ Undocumented Alias(E)
+
+-print-missing-file-dependencies
+C ObjC C++ ObjC++ Alias(MG)
+
+-trace-includes
+C ObjC C++ ObjC++ Alias(H)
+
+-traditional
+Driver Alias(traditional)
+
+-traditional-cpp
+C ObjC C++ ObjC++ Alias(traditional-cpp)
+
+-trigraphs
+C ObjC C++ ObjC++ Alias(trigraphs)
+
+-undefine-macro
+C ObjC C++ ObjC++ Separate Alias(U) MissingArgError(macro name missing after %qs)
+
+-undefine-macro=
+C ObjC C++ ObjC++ Joined Alias(U) MissingArgError(macro name missing after %qs)
+
+-user-dependencies
+C ObjC C++ ObjC++ Alias(MM)
+
+-verbose
+Common C ObjC C++ ObjC++ Alias(v)
+
+-write-dependencies
+C ObjC C++ ObjC++ NoDriverArg Separate Alias(MD) MissingArgError(missing filename after %qs)
+
+-write-user-dependencies
+C ObjC C++ ObjC++ NoDriverArg Separate Alias(MMD) MissingArgError(missing filename after %qs)
+
+A
+C ObjC C++ ObjC++ Joined Separate MissingArgError(assertion missing after %qs)
+-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 MissingArgError(macro name missing after %qs)
+-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 Var(flag_preprocess_only)
+
+F
+Driver C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs)
+-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 MissingArgError(missing path after %qs)
+-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++ NoDriverArg Separate MissingArgError(missing filename after %qs)
+Generate make dependencies and compile
+
+MF
+C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs)
+-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++ NoDriverArg Separate MissingArgError(missing filename after %qs)
+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 MissingArgError(missing makefile target after %qs)
+-MQ <target> Add a MAKE-quoted target
+
+MT
+C ObjC C++ ObjC++ Joined Separate MissingArgError(missing makefile target after %qs)
+-MT <target> Add an unquoted target
+
+P
+C ObjC C++ ObjC++
+Do not generate #line directives
+
+U
+C ObjC C++ ObjC++ Joined Separate MissingArgError(macro name missing after %qs)
+-U<macro> Undefine <macro>
+
+Wabi
+C ObjC C++ ObjC++ LTO Var(warn_abi) Warning
+Warn about things that will change when compiling with an ABI-compliant compiler
+
+Wabi-tag
+C++ ObjC++ Var(warn_abi_tag) Warning
+Warn if a subobject has an abi_tag attribute that the complete object type does not have
+
+Wpsabi
+C ObjC C++ ObjC++ LTO Var(warn_psabi) Init(1) Undocumented
+
+Waddress
+C ObjC C++ ObjC++ Var(warn_address) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
+Warn about suspicious uses of memory addresses
+
+Wall
+C ObjC C++ ObjC++ Warning
+Enable most warning messages
+
+Warray-bounds
+LangEnabledBy(C ObjC C++ ObjC++,Wall)
+; in common.opt
+
+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 Var(warn_bad_function_cast) Warning
+Warn about casting functions to incompatible types
+
+Wbuiltin-macro-redefined
+C ObjC C++ ObjC++ Warning
+Warn when a built-in preprocessor macro is undefined or redefined
+
+Wc++-compat
+C ObjC 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) Warning LangEnabledBy(C++ ObjC++,Wall)
+Deprecated in favor of -Wc++11-compat
+
+Wc++11-compat
+C++ ObjC++ Warning Alias(Wc++0x-compat)
+Warn about C++ constructs whose meaning differs between ISO C++ 1998 and ISO C++ 2011
+
+Wcast-qual
+C ObjC C++ ObjC++ Var(warn_cast_qual) Warning
+Warn about casts which discard qualifiers
+
+Wchar-subscripts
+C ObjC C++ ObjC++ Var(warn_char_subscripts) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
+Warn about subscripts whose type is \"char\"
+
+Wclobbered
+C ObjC C++ ObjC++ Var(warn_clobbered) Warning EnabledBy(Wextra)
+Warn about variables that might be changed by \"longjmp\" or \"vfork\"
+
+Wcomment
+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++ Warning Alias(Wcomment)
+Synonym for -Wcomment
+
+Wconditionally-supported
+C++ ObjC++ Var(warn_conditionally_supported) Warning
+Warn for conditionally-supported constructs
+
+Wconversion
+C ObjC C++ ObjC++ Var(warn_conversion) Warning
+Warn for implicit type conversions that may change a value
+
+Wconversion-null
+C++ ObjC++ Var(warn_conversion_null) Init(1) Warning
+Warn for converting NULL from/to a non-pointer type
+
+Wctor-dtor-privacy
+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
+
+Wdelete-incomplete
+C++ ObjC++ Var(warn_delete_incomplete) Init(1) Warning
+Warn when deleting a pointer to incomplete type
+
+Wdelete-non-virtual-dtor
+C++ ObjC++ Var(warn_delnonvdtor) Warning LangEnabledBy(C++ ObjC++,Wall)
+Warn about deleting polymorphic objects with non-virtual destructors
+
+Wdelete-non-virtual-dtor
+LangEnabledBy(C++ ObjC++,Weffc++)
+;
+
+Wdeprecated
+C C++ ObjC ObjC++ Var(warn_deprecated) Init(1) Warning
+Warn if a deprecated compiler feature, class, method, or field is used
+
+Wdiv-by-zero
+C ObjC C++ ObjC++ Var(warn_div_by_zero) Init(1) Warning
+Warn about compile-time integer division by zero
+
+Weffc++
+C++ ObjC++ Var(warn_ecpp) Warning
+Warn about violations of Effective C++ style rules
+
+Wempty-body
+C ObjC C++ ObjC++ Var(warn_empty_body) Warning EnabledBy(Wextra)
+Warn about an empty body in an if or else statement
+
+Wendif-labels
+C ObjC C++ ObjC++ Warning
+Warn about stray tokens after #elif and #endif
+
+Wenum-compare
+C ObjC C++ ObjC++ Var(warn_enum_compare) Init(-1) Warning LangEnabledBy(C ObjC,Wall)
+Warn about comparison of different enum types
+
+Wenum-compare
+LangEnabledBy(C ObjC,Wc++-compat)
+;
+
+Werror
+C ObjC C++ ObjC++
+; Documented in common.opt
+
+Werror-implicit-function-declaration
+C ObjC RejectNegative Warning Alias(Werror=, implicit-function-declaration)
+This switch is deprecated; use -Werror=implicit-function-declaration instead
+
+Wfloat-conversion
+C ObjC C++ ObjC++ Var(warn_float_conversion) LangEnabledBy(C ObjC C++ ObjC++,Wconversion)
+Warn for implicit type conversions that cause loss of floating point precision
+
+Wfloat-equal
+C ObjC C++ ObjC++ Var(warn_float_equal) Warning
+Warn if testing floating point numbers for equality
+
+Wformat
+C ObjC C++ ObjC++ Warning Alias(Wformat=, 1, 0)
+Warn about printf/scanf/strftime/strfmon format string anomalies
+
+Wformat-contains-nul
+C ObjC C++ ObjC++ Var(warn_format_contains_nul) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 1, 0)
+Warn about format strings that contain NUL bytes
+
+Wformat-extra-args
+C ObjC C++ ObjC++ Var(warn_format_extra_args) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 1, 0)
+Warn if passing too many arguments to a function for its format string
+
+Wformat-nonliteral
+C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+Warn about format strings that are not literals
+
+Wformat-security
+C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+Warn about possible security problems with format functions
+
+Wformat-y2k
+C ObjC C++ ObjC++ Var(warn_format_y2k) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=,warn_format >= 2, 0)
+Warn about strftime formats yielding 2-digit years
+
+Wformat-zero-length
+C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=,warn_format >= 1, 0)
+Warn about zero-length formats
+
+Wformat=
+C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0)
+Warn about printf/scanf/strftime/strfmon format string anomalies
+
+Wignored-qualifiers
+C C++ Var(warn_ignored_qualifiers) Warning EnabledBy(Wextra)
+Warn whenever type qualifiers are ignored.
+
+Winit-self
+C ObjC C++ ObjC++ Var(warn_init_self) Warning LangEnabledBy(C++ ObjC++,Wall)
+Warn about variables which are initialized to themselves
+
+Wimplicit
+C ObjC Var(warn_implicit) Warning LangEnabledBy(C ObjC,Wall)
+Warn about implicit declarations
+
+Wdouble-promotion
+C ObjC C++ ObjC++ Var(warn_double_promotion) Warning
+Warn about implicit conversions from \"float\" to \"double\"
+
+Wimplicit-function-declaration
+C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning LangEnabledBy(C ObjC,Wimplicit)
+Warn about implicit function declarations
+
+Wimplicit-int
+C ObjC Var(warn_implicit_int) Warning LangEnabledBy(C ObjC,Wimplicit)
+Warn when a declaration does not specify a type
+
+Wimport
+C ObjC C++ ObjC++ Undocumented Ignore
+
+Winherited-variadic-ctor
+C++ ObjC++ Var(warn_inh_var_ctor) Init(1) Warning
+Warn about C++11 inheriting constructors when the base has a variadic constructor
+
+Wint-to-pointer-cast
+C ObjC 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++ Var(warn_invalid_offsetof) Init(1) Warning
+Warn about invalid uses of the \"offsetof\" macro
+
+Winvalid-pch
+C ObjC C++ ObjC++ Warning
+Warn about PCH files that are found but not used
+
+Wjump-misses-init
+C ObjC Var(warn_jump_misses_init) Warning LangEnabledby(C ObjC,Wc++-compat)
+Warn when a jump misses a variable initialization
+
+Wliteral-suffix
+C++ ObjC++ Warning
+Warn when a string or character literal is followed by a ud-suffix which does not begin with an underscore.
+
+Wlogical-op
+C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning
+Warn when a logical operator is suspiciously always evaluating to true or false
+
+Wlong-long
+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++ Var(warn_main) Init(-1) Warning LangEnabledBy(C ObjC,Wall, 2, 0)
+Warn about suspicious declarations of \"main\"
+
+Wmain
+LangEnabledBy(C ObjC C++ ObjC++,Wpedantic, 2, 0)
+;
+
+Wmissing-braces
+C ObjC C++ ObjC++ Var(warn_missing_braces) Warning LangEnabledBy(C ObjC,Wall)
+Warn about possibly missing braces around initializers
+
+Wmissing-declarations
+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) Warning EnabledBy(Wextra)
+Warn about missing fields in struct initializers
+
+Wsizeof-pointer-memaccess
+C ObjC C++ ObjC++ Var(warn_sizeof_pointer_memaccess) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
+
+Wsuggest-attribute=format
+C ObjC C++ ObjC++ Var(warn_suggest_attribute_format) Warning
+Warn about functions which might be candidates for format attributes
+
+Wswitch
+C ObjC C++ ObjC++ Var(warn_switch) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
+Warn about enumerated switches, with no default, missing a case
+
+Wswitch-default
+C ObjC C++ ObjC++ Var(warn_switch_default) Warning
+Warn about enumerated switches missing a \"default:\" statement
+
+Wswitch-enum
+C ObjC C++ ObjC++ Var(warn_switch_enum) Warning
+Warn about all enumerated switches missing a specific case
+
+Wmissing-format-attribute
+C ObjC C++ ObjC++ Alias(Wsuggest-attribute=format)
+;
+
+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) Warning EnabledBy(Wextra)
+Warn about function parameters declared without a type specifier in K&R-style functions
+
+Wmissing-prototypes
+C ObjC Var(warn_missing_prototypes) Warning
+Warn about global functions without prototypes
+
+Wmudflap
+C ObjC C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+Wmultichar
+C ObjC C++ ObjC++ Warning
+Warn about use of multi-character character constants
+
+Wnarrowing
+C ObjC C++ ObjC++ Warning Var(warn_narrowing) Init(-1) LangEnabledBy(C++ ObjC++,Wall)
+Warn about narrowing conversions within { } that are ill-formed in C++11
+
+Wnarrowing
+C ObjC C++ ObjC++ LangEnabledBy(C++ ObjC++,Wc++0x-compat)
+;
+
+Wnested-externs
+C ObjC Var(warn_nested_externs) Warning
+Warn about \"extern\" declarations not at file scope
+
+Wnoexcept
+C++ ObjC++ Var(warn_noexcept) Warning
+Warn when a noexcept expression evaluates to false even though the expression can't actually throw
+
+Wnon-template-friend
+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++ Var(warn_nonvdtor) Warning
+Warn about non-virtual destructors
+
+Wnonnull
+C ObjC C++ ObjC++ Var(warn_nonnull) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=,warn_format >= 1,0)
+Warn about NULL being passed to argument slots marked as requiring non-NULL
+
+Wnonnull
+C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall)
+;
+
+Wnormalized=
+C ObjC C++ ObjC++ Joined Warning
+-Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings
+
+Wold-style-cast
+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) Warning EnabledBy(Wextra)
+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
+
+Wopenmp-simd
+C C++ Var(warn_openmp_simd) Warning LangEnabledBy(C C++,Wall)
+Warn if a simd directive is overridden by the vectorizer cost model
+
+Woverlength-strings
+C ObjC C++ ObjC++ Var(warn_overlength_strings) Warning LangEnabledBy(C ObjC C++ ObjC++,Wpedantic)
+Warn if a string is longer than the maximum portable length specified by the standard
+
+Woverloaded-virtual
+C++ ObjC++ Var(warn_overloaded_virtual) Warning
+Warn about overloaded virtual function names
+
+Woverride-init
+C ObjC Var(warn_override_init) Warning EnabledBy(Wextra)
+Warn about overriding initializers without side effects
+
+Wpacked-bitfield-compat
+C ObjC C++ ObjC++ Var(warn_packed_bitfield_compat) Init(-1) Warning
+Warn about packed bit-fields whose offset changed in GCC 4.4
+
+Wparentheses
+C ObjC C++ ObjC++ Var(warn_parentheses) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
+Warn about possibly missing parentheses
+
+Wpedantic
+C ObjC C++ ObjC++ Warning
+; Documented in common.opt
+
+Wpmf-conversions
+C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning
+Warn when converting the type of pointers to member functions
+
+Wpointer-arith
+C ObjC C++ ObjC++ Var(warn_pointer_arith) Warning LangEnabledBy(C ObjC C++ ObjC++,Wpedantic)
+Warn about function pointer arithmetic
+
+Wpointer-sign
+C ObjC Var(warn_pointer_sign) Warning LangEnabledBy(C ObjC,Wall)
+Warn when a pointer differs in signedness in an assignment
+
+Wpointer-sign
+C ObjC LangEnabledBy(C ObjC,Wpedantic)
+;
+
+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
+
+Wdate-time
+Common Var(cpp_warn_date_time) Warning
+Warn about __TIME__, __DATE__ and __TIMESTAMP__ usage
+
+Wproperty-assign-default
+ObjC ObjC++ Var(warn_property_assign_default) Init(1) Warning
+Warn if a property for an Objective-C object has no assign semantics specified
+
+Wprotocol
+ObjC ObjC++ Var(warn_protocol) Init(1) Warning
+Warn if inherited methods are unimplemented
+
+Wredundant-decls
+C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning
+Warn about multiple declarations of the same object
+
+Wreorder
+C++ ObjC++ Var(warn_reorder) Warning LangEnabledBy(C++ ObjC++,Wall)
+Warn when the compiler reorders code
+
+Wreturn-local-addr
+C ObjC C++ ObjC++ Var(warn_return_local_addr) Init(1) Warning
+Warn about returning a pointer/reference to a local or temporary variable.
+
+Wreturn-type
+C ObjC C++ ObjC++ Var(warn_return_type) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
+Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++)
+
+Wselector
+ObjC ObjC++ Var(warn_selector) Warning
+Warn if a selector has multiple methods
+
+Wsequence-point
+C ObjC C++ ObjC++ Var(warn_sequence_point) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
+Warn about possible violations of sequence point rules
+
+Wsign-compare
+C ObjC C++ ObjC++ Var(warn_sign_compare) Warning LangEnabledBy(C++ ObjC++,Wall)
+Warn about signed-unsigned comparisons
+
+Wsign-compare
+C ObjC C++ ObjC++ EnabledBy(Wextra)
+;
+
+Wsign-conversion
+C ObjC C++ ObjC++ Var(warn_sign_conversion) LangEnabledBy(C ObjC,Wconversion)
+Warn for implicit type conversions between signed and unsigned integers
+
+Wsign-promo
+C++ ObjC++ Var(warn_sign_promo) Warning
+Warn when overload promotes from unsigned to signed
+
+Wstrict-null-sentinel
+C++ ObjC++ Warning Var(warn_strict_null_sentinel)
+Warn about uncasted NULL used as sentinel
+
+Wstrict-prototypes
+C ObjC Var(warn_strict_prototypes) Warning
+Warn about unprototyped function declarations
+
+Wstrict-aliasing=
+C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall, 3, 0)
+;
+
+Wstrict-overflow=
+C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0)
+;
+
+Wstrict-selector-match
+ObjC ObjC++ Var(warn_strict_selector_match) Warning
+Warn if type signatures of candidate methods do not match exactly
+
+Wsync-nand
+C C++ Var(warn_sync_nand) Init(1) Warning
+Warn when __sync_fetch_and_nand and __sync_nand_and_fetch built-in functions are used
+
+Wsynth
+C++ ObjC++ Var(warn_synth) Warning
+Deprecated. This switch has no effect
+
+Wsystem-headers
+C ObjC C++ ObjC++ Warning
+; Documented in common.opt
+
+Wtraditional
+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++ Warning
+Warn if trigraphs are encountered that might affect the meaning of the program
+
+Wundeclared-selector
+ObjC ObjC++ Var(warn_undeclared_selector) Warning
+Warn about @selector()s without previously declared methods
+
+Wundef
+C ObjC C++ ObjC++ Warning
+Warn if an undefined macro is used in an #if directive
+
+Wuninitialized
+C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall)
+;
+
+Wmaybe-uninitialized
+C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall)
+;
+
+Wunknown-pragmas
+C ObjC C++ ObjC++ Warning Var(warn_unknown_pragmas) LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0)
+Warn about unrecognized pragmas
+
+Wunsuffixed-float-constants
+C ObjC Var(warn_unsuffixed_float_constants) Warning
+Warn about unsuffixed float constants
+
+Wunused
+C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall)
+; documented in common.opt
+
+Wunused-local-typedefs
+C ObjC C++ ObjC++ Var(warn_unused_local_typedefs) Warning EnabledBy(Wunused)
+Warn when typedefs locally defined in a function are not used
+
+Wunused-macros
+C ObjC C++ ObjC++ Var(cpp_warn_unused_macros) Warning
+Warn about macros defined in the main file that are not used
+
+Wunused-result
+C ObjC C++ ObjC++ Var(warn_unused_result) Init(1) Warning
+Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value
+
+Wvariadic-macros
+C ObjC C++ ObjC++ Var(cpp_warn_variadic_macros) Init(1) Warning
+Warn about using variadic macros
+
+Wvarargs
+C ObjC C++ ObjC++ Warning Var(warn_varargs) Init(1)
+Warn about questionable usage of the macros used to retrieve variable arguments
+
+Wvla
+C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning
+Warn if a variable length array is used
+
+Wvolatile-register-var
+C ObjC C++ ObjC++ Var(warn_volatile_register_var) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
+Warn when a register variable is declared volatile
+
+Wvirtual-move-assign
+C++ ObjC++ Var(warn_virtual_move_assign) Warning Init(1)
+Warn if a virtual base has a non-trivial move assignment operator
+
+Wwrite-strings
+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.
+
+Wzero-as-null-pointer-constant
+C++ ObjC++ Var(warn_zero_as_null_pointer_constant) Warning
+Warn when a literal '0' is used as null pointer
+
+Wuseless-cast
+C++ ObjC++ Var(warn_useless_cast) Warning
+Warn about useless casts
+
+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++ Var(flag_access_control) Init(1)
+Enforce class member access control semantics
+
+fada-spec-parent=
+C ObjC C++ ObjC++ RejectNegative Joined Var(ada_specs_parent)
+-fada-spec-parent=unit Dump Ada specs as child units of given parent
+
+fall-virtual
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+fallow-parameterless-variadic-functions
+C ObjC Var(flag_allow_parameterless_variadic_functions)
+Allow variadic functions without named parameter
+
+falt-external-templates
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+No longer supported
+
+fasm
+C ObjC C++ ObjC++ Var(flag_no_asm, 0)
+Recognize the \"asm\" keyword
+
+; Define extra predefined macros for use in libgcc.
+fbuilding-libgcc
+C ObjC C++ ObjC++ Undocumented Var(flag_building_libgcc)
+
+fbuiltin
+C ObjC C++ ObjC++ Var(flag_no_builtin, 0)
+Recognize built-in functions
+
+fbuiltin-
+C ObjC C++ ObjC++ Joined
+
+fcanonical-system-headers
+C ObjC C++ ObjC++
+Where shorter, use canonicalized paths to systems headers.
+
+fcilkplus
+C ObjC C++ ObjC++ LTO Report Var(flag_cilkplus) Init(0)
+Enable Cilk Plus
+
+fcond-mismatch
+C ObjC C++ ObjC++
+Allow the arguments of the '?' operator to have different types
+
+fconserve-space
+C++ ObjC++ Var(flag_conserve_space)
+Does nothing. Preserved for backward compatibility.
+
+fconstant-string-class=
+ObjC ObjC++ Joined MissingArgError(no class name specified with %qs)
+-fconst-string-class=<name> Use class <name> for constant strings
+
+fconstexpr-depth=
+C++ ObjC++ Joined RejectNegative UInteger Var(max_constexpr_depth) Init(512)
+-fconstexpr-depth=<number> Specify maximum constexpr recursion depth
+
+fdebug-cpp
+C ObjC C++ ObjC++
+Emit debug annotations during preprocessing
+
+fdeduce-init-list
+C++ ObjC++ Var(flag_deduce_init_list) Init(0)
+-fdeduce-init-list enable deduction of std::initializer_list for a template type parameter from a brace-enclosed initializer-list
+
+fdeclone-ctor-dtor
+C++ ObjC++ Var(flag_declone_ctor_dtor) Init(-1)
+Factor complex constructors and destructors to favor space over speed
+
+fdefault-inline
+C++ ObjC++ Ignore
+Does nothing. Preserved for backward compatibility.
+
+fdirectives-only
+C ObjC C++ ObjC++
+Preprocess directives only.
+
+fdollars-in-identifiers
+C ObjC C++ ObjC++
+Permit '$' as an identifier character
+
+fdump-ada-spec
+C ObjC C++ ObjC++ RejectNegative Var(flag_dump_ada_spec)
+Write all declarations as Ada code transitively
+
+fdump-ada-spec-slim
+C ObjC C++ ObjC++ RejectNegative Var(flag_dump_ada_spec_slim)
+Write all declarations as Ada code for the given file only
+
+felide-constructors
+C++ ObjC++ Var(flag_elide_constructors) Init(1)
+
+fenforce-eh-specs
+C++ ObjC++ Var(flag_enforce_eh_specs) Init(1)
+Generate code to check exception specifications
+
+fenum-int-equiv
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+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
+
+fextern-tls-init
+C++ ObjC++ Var(flag_extern_tls_init) Init(-1)
+Support dynamic initialization of thread-local variables in a different translation unit
+
+fexternal-templates
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+ffor-scope
+C++ ObjC++ Var(flag_new_for_scope) Init(1)
+Scope of for-init-statement variables is local to the loop
+
+ffreestanding
+C ObjC C++ ObjC++
+Do not assume that standard C libraries and \"main\" exist
+
+fgnu-keywords
+C++ ObjC++ Var(flag_no_gnu_keywords, 0)
+Recognize GNU-defined keywords
+
+fgnu-runtime
+ObjC ObjC++ LTO Report RejectNegative Var(flag_next_runtime,0) Init(NEXT_OBJC_RUNTIME)
+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++ Ignore Warn(switch %qs is no longer supported)
+
+fhandle-exceptions
+C++ ObjC++ Optimization Alias(fexceptions) Warn({-fhandle-exceptions has been renamed -fexceptions (and is now on by default)})
+
+fhonor-std
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+fhosted
+C ObjC
+Assume normal C execution environment
+
+fhuge-objects
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+No longer supported
+
+fimplement-inlines
+C++ ObjC++ Var(flag_implement_inlines) Init(1)
+Export functions even if they can be inlined
+
+fimplicit-inline-templates
+C++ ObjC++ Var(flag_implicit_inline_templates) Init(1)
+Emit implicit instantiations of inline templates
+
+fimplicit-templates
+C++ ObjC++ Var(flag_implicit_templates) Init(1)
+Emit implicit instantiations of templates
+
+ffriend-injection
+C++ ObjC++ Var(flag_friend_injection)
+Inject friend functions into enclosing namespace
+
+fkeep-inline-dllexport
+C C++ ObjC ObjC++ Var(flag_keep_inline_dllexport) Init(1) Report Condition(TARGET_DLLIMPORT_DECL_ATTRIBUTES)
+Don't emit dllexported inline functions unless needed
+
+flabels-ok
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+flax-vector-conversions
+C ObjC C++ ObjC++ Var(flag_lax_vector_conversions)
+Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types.
+
+fms-extensions
+C ObjC C++ ObjC++ Var(flag_ms_extensions)
+Don't warn about uses of Microsoft extensions
+
+fmudflap
+C ObjC C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+fmudflapth
+C ObjC C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+fmudflapir
+C ObjC C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+fname-mangling-version-
+C++ ObjC++ Joined Ignore Warn(switch %qs is no longer supported)
+
+fnew-abi
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+fnext-runtime
+ObjC ObjC++ LTO Report RejectNegative Var(flag_next_runtime)
+Generate code for NeXT (Apple Mac OS X) runtime environment
+
+fnil-receivers
+ObjC ObjC++ Var(flag_nil_receivers) Init(1)
+Assume that receivers of Objective-C messages may be nil
+
+fnonansi-builtins
+C++ ObjC++ Var(flag_no_nonansi_builtin, 0)
+
+fnonnull-objects
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+fnothrow-opt
+C++ ObjC++ Optimization Var(flag_nothrow_opt)
+Treat a throw() exception specification as noexcept to improve code size
+
+fobjc-abi-version=
+ObjC ObjC++ LTO Joined Report RejectNegative UInteger Var(flag_objc_abi)
+Specify which ABI to use for Objective-C family code and meta-data generation.
+
+; 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++ LTO Var(flag_objc_gc)
+Enable garbage collection (GC) in Objective-C/Objective-C++ programs
+
+fobjc-nilcheck
+ObjC ObjC++ Var(flag_objc_nilcheck,1)
+Enable inline checks for nil receivers with the NeXT runtime and ABI version 2.
+
+; 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
+
+fobjc-std=objc1
+ObjC ObjC++ Var(flag_objc1_only)
+Conform to the Objective-C 1.0 language as implemented in GCC 4.0
+
+fopenmp
+C ObjC C++ ObjC++ Var(flag_openmp)
+Enable OpenMP (implies -frecursive in Fortran)
+
+fopenmp-simd
+C ObjC C++ ObjC++ Var(flag_openmp_simd)
+Enable OpenMP's SIMD directives
+
+foperator-names
+C++ ObjC++
+Recognize C++ keywords like \"compl\" and \"xor\"
+
+foptional-diags
+C++ ObjC++ Ignore
+Does nothing. Preserved for backward compatibility.
+
+fpch-deps
+C ObjC C++ ObjC++
+
+fpch-preprocess
+C ObjC C++ ObjC++
+Look for and use PCH files even when preprocessing
+
+fpermissive
+C++ ObjC++ Var(flag_permissive)
+Downgrade conformance errors to warnings
+
+fplan9-extensions
+C ObjC Var(flag_plan9_extensions)
+Enable Plan 9 language extensions
+
+fpreprocessed
+C ObjC C++ ObjC++
+Treat the input file as already preprocessed
+
+ftrack-macro-expansion
+C ObjC C++ ObjC++ JoinedOrMissing RejectNegative UInteger
+; converted into ftrack-macro-expansion=
+
+ftrack-macro-expansion=
+C ObjC C++ ObjC++ JoinedOrMissing RejectNegative UInteger
+-ftrack-macro-expansion=<0|1|2> Track locations of tokens coming from macro expansion and display them in error messages
+
+fpretty-templates
+C++ ObjC++ Var(flag_pretty_templates) Init(1)
+-fno-pretty-templates Do not pretty-print template specializations as the template signature followed by the arguments
+
+freplace-objc-classes
+ObjC ObjC++ LTO Var(flag_replace_objc_classes)
+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++ Optimization Var(flag_rtti) Init(1)
+Generate run time type descriptor information
+
+fshort-double
+C ObjC C++ ObjC++ LTO Optimization Var(flag_short_double)
+Use the same size for double as for float
+
+fshort-enums
+C ObjC C++ ObjC++ Optimization Var(flag_short_enums)
+Use the narrowest integer type possible for enumeration types
+
+fshort-wchar
+C ObjC C++ ObjC++ Optimization Var(flag_short_wchar)
+Force the underlying type for \"wchar_t\" to be \"unsigned short\"
+
+fsigned-bitfields
+C ObjC C++ ObjC++ Var(flag_signed_bitfields) Init(1)
+When \"signed\" or \"unsigned\" is not given make the bitfield signed
+
+fsigned-char
+C ObjC C++ ObjC++ LTO Var(flag_signed_char)
+Make \"char\" signed by default
+
+fsquangle
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+fstats
+C++ ObjC++ Var(flag_detailed_statistics)
+Display statistics accumulated during compilation
+
+fstrict-enums
+C++ ObjC++ Optimization Var(flag_strict_enums)
+Assume that values of enumeration type are always within the minimum range of that type
+
+fstrict-prototype
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+ftabstop=
+C ObjC C++ ObjC++ Joined RejectNegative UInteger
+-ftabstop=<number> Distance between tab stops for column reporting
+
+ftemplate-backtrace-limit=
+C++ ObjC++ Joined RejectNegative UInteger Var(template_backtrace_limit) Init(10)
+Set the maximum number of template instantiation notes for a single warning or error
+
+ftemplate-depth-
+C++ ObjC++ Joined RejectNegative Undocumented Alias(ftemplate-depth=)
+
+ftemplate-depth=
+C++ ObjC++ Joined RejectNegative UInteger
+-ftemplate-depth=<number> Specify maximum template instantiation depth
+
+fthis-is-variable
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
+fthreadsafe-statics
+C++ ObjC++ Optimization Var(flag_threadsafe_statics) Init(1)
+-fno-threadsafe-statics Do not generate thread-safe code for initializing local statics
+
+funsigned-bitfields
+C ObjC C++ ObjC++ Var(flag_signed_bitfields, 0)
+When \"signed\" or \"unsigned\" is not given make the bitfield unsigned
+
+funsigned-char
+C ObjC C++ ObjC++ LTO Var(flag_signed_char, 0)
+Make \"char\" unsigned by default
+
+fuse-cxa-atexit
+C++ ObjC++ Var(flag_use_cxa_atexit) Init(DEFAULT_USE_CXA_ATEXIT)
+Use __cxa_atexit to register destructors
+
+fuse-cxa-get-exception-ptr
+C++ ObjC++ Var(flag_use_cxa_get_exception_ptr) Init(2)
+Use __cxa_get_exception_ptr in exception handling
+
+fvisibility-inlines-hidden
+C++ ObjC++
+Marks all inlined functions and methods as having hidden visibility
+
+fvisibility-ms-compat
+C++ ObjC++ Var(flag_visibility_ms_compat)
+Changes visibility to match Microsoft Visual Studio by default
+
+fvtable-gc
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+No longer supported
+
+fvtable-thunks
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+No longer supported
+
+fweak
+C++ ObjC++ Var(flag_weak) Init(1)
+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++ Var(flag_working_directory) Init(-1)
+Generate a #line directive pointing at the current working directory
+
+fxref
+C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+No longer supported
+
+fzero-link
+ObjC ObjC++ Var(flag_zero_link)
+Generate lazy class lookup (via objc_getClass()) for use in Zero-Link mode
+
+gen-decls
+ObjC ObjC++ Var(flag_gen_declaration)
+Dump declarations to a .decl file
+
+femit-struct-debug-baseonly
+C ObjC C++ ObjC++
+-femit-struct-debug-baseonly Aggressive reduced debug info for structs
+
+femit-struct-debug-reduced
+C ObjC C++ ObjC++
+-femit-struct-debug-reduced Conservative reduced debug info for structs
+
+femit-struct-debug-detailed=
+C ObjC C++ ObjC++ Joined
+-femit-struct-debug-detailed=<spec-list> Detailed reduced debug info for structs
+
+fext-numeric-literals
+C++ ObjC++
+Interpret imaginary, fixed-point, or other gnu number suffix as the corresponding
+number literal rather than a user-defined number literal.
+
+idirafter
+C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs)
+-idirafter <dir> Add <dir> to the end of the system include path
+
+imacros
+C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs)
+-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 MissingArgError(missing filename after %qs)
+-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 MissingArgError(missing path after %qs)
+-isysroot <dir> Set <dir> to be the system root directory
+
+isystem
+C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs)
+-isystem <dir> Add <dir> to the start of the system include path
+
+iquote
+C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs)
+-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
+
+lang-asm
+C Undocumented RejectDriver
+
+no-integrated-cpp
+Driver
+
+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++ Alias(Wpedantic)
+; Documented in common.opt
+
+print-objc-runtime-info
+ObjC ObjC++
+Generate C header of platform-specific features
+
+remap
+C ObjC C++ ObjC++
+Remap file names when including files
+
+std=c++98
+C++ ObjC++
+Conform to the ISO 1998 C++ standard revised by the 2003 technical corrigendum
+
+std=c++03
+C++ ObjC++ Alias(std=c++98)
+Conform to the ISO 1998 C++ standard revised by the 2003 technical corrigendum
+
+std=c++11
+C++ ObjC++
+Conform to the ISO 2011 C++ standard
+
+std=c++0x
+C++ ObjC++ Alias(std=c++11) Undocumented
+Deprecated in favor of -std=c++11
+
+std=c++1y
+C++ ObjC++
+Conform to the ISO 2014(?) C++ draft standard (experimental and incomplete support)
+
+std=c++14
+C++ ObjC++ Alias(std=c++1y) Undocumented
+
+std=c11
+C ObjC
+Conform to the ISO 2011 C standard (experimental and incomplete support)
+
+std=c1x
+C ObjC Alias(std=c11)
+Deprecated in favor of -std=c11
+
+std=c89
+C ObjC Alias(std=c90)
+Conform to the ISO 1990 C standard
+
+std=c90
+C ObjC
+Conform to the ISO 1990 C standard
+
+std=c99
+C ObjC
+Conform to the ISO 1999 C standard
+
+std=c9x
+C ObjC Alias(std=c99)
+Deprecated in favor of -std=c99
+
+std=gnu++98
+C++ ObjC++
+Conform to the ISO 1998 C++ standard revised by the 2003 technical
+corrigendum with GNU extensions
+
+std=gnu++03
+C++ ObjC++ Alias(std=gnu++98)
+Conform to the ISO 1998 C++ standard revised by the 2003 technical
+corrigendum with GNU extensions
+
+std=gnu++11
+C++ ObjC++
+Conform to the ISO 2011 C++ standard with GNU extensions (experimental and incomplete support)
+
+std=gnu++0x
+C++ ObjC++ Alias(std=gnu++11)
+Deprecated in favor of -std=gnu++11
+
+std=gnu++1y
+C++ ObjC++
+Conform to the ISO 201y(7?) C++ draft standard with GNU extensions (experimental and incomplete support)
+
+std=gnu++14
+C++ ObjC++ Alias(std=gnu++1y) Undocumented
+
+std=gnu11
+C ObjC
+Conform to the ISO 2011 C standard with GNU extensions (experimental and incomplete support)
+
+std=gnu1x
+C ObjC Alias(std=gnu11)
+Deprecated in favor of -std=gnu11
+
+std=gnu89
+C ObjC Alias(std=gnu90)
+Conform to the ISO 1990 C standard with GNU extensions
+
+std=gnu90
+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 Alias(std=gnu99)
+Deprecated in favor of -std=gnu99
+
+std=iso9899:1990
+C ObjC Alias(std=c90)
+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 Alias(std=c99)
+Conform to the ISO 1999 C standard
+
+std=iso9899:199x
+C ObjC Alias(std=c99)
+Deprecated in favor of -std=iso9899:1999
+
+std=iso9899:2011
+C ObjC Alias(std=c11)
+Conform to the ISO 2011 C standard (experimental and incomplete support)
+
+traditional
+Driver
+
+traditional-cpp
+C ObjC C++ ObjC++
+Enable traditional preprocessing
+
+trigraphs
+C ObjC C++ ObjC++
+-trigraphs Support ISO C trigraphs
+
+undef
+C ObjC C++ ObjC++ Var(flag_undef)
+Do not predefine system-specific and GCC-specific macros
+
+v
+C ObjC C++ ObjC++
+; Documented in common.opt
+
+w
+C ObjC C++ ObjC++
+; Documented in common.opt
+
+; This comment is to ensure we retain the blank line above.