; Options for the C, ObjC, C++ and ObjC++ front ends.
-; Copyright (C) 2003 Free Software Foundation, Inc.
+; Copyright (C) 2003, 2004 Free Software Foundation, Inc.
;
; This file is part of GCC.
;
; "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.
+; if the argument is invalid. "Var(name,set)" creates an integer
+; variable "name". The variable is declared and initialized to value
+; given by "Init(value)" (or zero if this property is not defined).
+; When the option is passed to compiler, this variable is set to "set"
+; if value passed through the flag is nonzero, !"set" if value is zero,
+; or to value if "set" is omitted. If "VarExists" is specified, the
+; declaration for the variable is not created. If "Report" is specified,
+; the flag is output with -fverbose-asm.
; The third field is the help text to output with --help. This is
; automatically line-wrapped on output. Normally the switch is output
; 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.
+; 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.
-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++
+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++
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)
+Warn about things that will change when compiling with an ABI-compliant compiler
Wall
C ObjC C++ ObjC++
Enable most warning messages
Wbad-function-cast
-C ObjC
+C ObjC Var(warn_bad_function_cast)
Warn about casting functions to incompatible types
Wcast-qual
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_cast_qual)
Warn about casts which discard qualifiers
Wchar-subscripts
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_char_subscripts)
Warn about subscripts whose type is \"char\"
Wcomment
Synonym for -Wcomment
Wconversion
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_conversion)
Warn about possibly confusing type conversions
Wctor-dtor-privacy
-C++ ObjC++
+C++ ObjC++ Var(warn_ctor_dtor_privacy)
Warn when all constructors and destructors are private
+Wdeclaration-after-statement
+C ObjC Var(warn_declaration_after_statement)
+Warn when a declaration is found after a statement
+
Wdeprecated
-C++ ObjC++
+C++ ObjC++ Var(warn_deprecated) Init(1)
Warn about deprecated compiler features
Wdiv-by-zero
-C ObjC
+C ObjC Var(warn_div_by_zero) Init(1)
Warn about compile-time integer division by zero
Weffc++
-C++ ObjC++
+C++ ObjC++ Var(warn_ecpp)
Warn about violations of Effective C++ style rules
Wendif-labels
Make implicit function declarations an error
Wfloat-equal
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_float_equal)
Warn if testing floating point numbers for equality
Wformat
Warn about printf/scanf/strftime/strfmon format string anomalies
Wformat-extra-args
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_format_extra_args)
Warn if passing too many arguments to a function for its format string
Wformat-nonliteral
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_format_nonliteral)
Warn about format strings that are not literals
Wformat-security
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_format_security)
Warn about possible security problems with format functions
Wformat-y2k
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_format_y2k)
Warn about strftime formats yielding 2-digit years
Wformat-zero-length
-C ObjC
+C ObjC Var(warn_format_zero_length)
+Warn about zero-length formats
Wformat=
C ObjC C++ ObjC++ Joined
+Winit-self
+C ObjC C++ ObjC++ Var(warn_init_self)
+Warn about variables which are initialized to themselves.
+
Wimplicit
C ObjC C++ ObjC++
Wimplicit-function-declaration
-C ObjC
+C ObjC Var(mesg_implicit_function_declaration) Init(-1)
Warn about implicit function declarations
Wimplicit-int
-C ObjC
+C ObjC Var(warn_implicit_int)
Warn when a declaration does not specify a type
Wimport
C ObjC C++ ObjC++
-Warn about uses of the \"#import\" directive
+Deprecated. This switch has no effect.
Winvalid-offsetof
-C++ ObjC++
+C++ ObjC++ Var(warn_invalid_offsetof) Init(1)
Warn about invalid uses of the \"offsetof\" macro
Winvalid-pch
Warn about PCH files that are found but not used
Wlong-long
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_long_long) Init(1)
Do not warn about using \"long long\" when -pedantic
Wmain
Warn about suspicious declarations of \"main\"
Wmissing-braces
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_missing_braces)
Warn about possibly missing braces around initializers
Wmissing-declarations
-C ObjC
+C ObjC Var(warn_missing_declarations)
Warn about global functions without previous declarations
+Wmissing-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++
+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
+
Wmissing-prototypes
-C ObjC
+C ObjC Var(warn_missing_prototypes)
Warn about global functions without prototypes
Wmultichar
Warn about use of multi-character character constants
Wnested-externs
-C ObjC
+C ObjC Var(warn_nested_externs)
Warn about \"extern\" declarations not at file scope
Wnon-template-friend
-C++ ObjC++
+C++ ObjC++ Var(warn_nontemplate_friend) Init(1)
Warn when non-templatized friend functions are declared within a template
Wnon-virtual-dtor
-C++ ObjC++
+C++ ObjC++ Var(warn_nonvdtor)
Warn about non-virtual destructors
Wnonnull
-C ObjC
+C ObjC Var(warn_nonnull)
+Warn about NULL being passed to argument slots marked as requiring non-NULL
Wold-style-cast
-C++ ObjC++
+C++ ObjC++ Var(warn_old_style_cast)
Warn if a C-style cast is used in a program
+Wold-style-definition
+C ObjC Var(warn_old_style_definition)
+Warn if an old-style parameter definition is used
+
Woverloaded-virtual
-C++ ObjC++
+C++ ObjC++ Var(warn_overloaded_virtual)
Warn about overloaded virtual function names
Wparentheses
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_parentheses)
Warn about possibly missing parentheses
Wpmf-conversions
-C++ ObjC++
+C++ ObjC++ Var(warn_pmf2ptr) Init(1)
Warn when converting the type of pointers to member functions
Wpointer-arith
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_pointer_arith)
Warn about function pointer arithmetic
Wprotocol
-ObjC ObjC++
+ObjC ObjC++ Var(warn_protocol) Init(1)
+Warn if inherited methods are unimplemented
Wredundant-decls
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_redundant_decls)
Warn about multiple declarations of the same object
Wreorder
-C++ ObjC++
+C++ ObjC++ Var(warn_reorder)
Warn when the compiler reorders code
Wreturn-type
Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++)
Wselector
-ObjC ObjC++
+ObjC ObjC++ Var(warn_selector)
+Warn if a selector has multiple methods
Wsequence-point
-C ObjC
+C ObjC C++ ObjC++ Var(warn_sequence_point)
Warn about possible violations of sequence point rules
Wsign-compare
-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1)
Warn about signed-unsigned comparisons
Wsign-promo
-C++ ObjC++
+C++ ObjC++ Var(warn_sign_promo)
Warn when overload promotes from unsigned to signed
Wstrict-prototypes
-C ObjC
+C ObjC Var(warn_strict_prototypes)
Warn about unprototyped function declarations
Wsynth
-C++ ObjC++
+C++ ObjC++ Var(warn_synth)
Warn when synthesis behavior differs from Cfront
Wsystem-headers
Do not suppress warnings from system headers
Wtraditional
-C ObjC
+C ObjC Var(warn_traditional)
Warn about features not present in traditional C
Wtrigraphs
Warn if trigraphs are encountered that might affect the meaning of the program
Wundeclared-selector
-ObjC ObjC++
+ObjC ObjC++ Var(warn_undeclared_selector)
+Warn about @selector()s without previously declared methods
Wundef
C ObjC C++ ObjC++
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++
Give strings the type \"array of char\"
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
fconstant-string-class=
ObjC ObjC++ Joined
+-fconst-string-class=<name> Use class <name> for constant strings
fdefault-inline
C++ ObjC++
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>
+finput-charset=
+C ObjC C++ ObjC++ Joined RejectNegative
+-finput-charset=<cset> Specify the default character set for source files.
+
+
fexternal-templates
C++ ObjC++
fgnu-runtime
ObjC ObjC++
+Generate code for GNU runtime environment
fguiding-decls
C++ ObjC++
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
fnonansi-builtins
C++ ObjC++
fnonnull-objects
C++ ObjC++
+fobjc-exceptions
+ObjC ObjC++
+Enable Objective-C exception and synchronization syntax
+
+fobjc-sjlj-exceptions
+ObjC ObjC++
+Enable Objective-C setjmp exception handling runtime
+
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
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
C++ ObjC++
Use __cxa_atexit to register destructors
+fvisibility-inlines-hidden
+C++
+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
idirafter
C ObjC C++ ObjC++ Joined Separate
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 <dir> Add <dir> to the end of the main include path
lang-asm
-C
-For internal use only
+C Undocumented
lang-objc
-C ObjC C++ ObjC++
-For internal use only
+C ObjC C++ ObjC++ Undocumented
nostdinc
C ObjC C++ ObjC++
print-objc-runtime-info
ObjC ObjC++
+Generate C header of platform-specific features
remap
C ObjC C++ ObjC++
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