; Options for the C, ObjC, C++ and ObjC++ front ends.
-; Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+; Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
;
; This file is part of GCC.
;
;
; 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. "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
-; 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.
F
C ObjC C++ ObjC++ Joined Separate
--F <dir> Add <dir> to the end of the main framework include path
+-F <dir> Add <dir> to the end of the main framework include path
H
C ObjC C++ ObjC++
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 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
Winit-self
C ObjC C++ ObjC++ Var(warn_init_self)
-Warn about variables which are initialized to themselves.
+Warn about variables which are initialized to themselves
Wimplicit
C ObjC C++ ObjC++
Wimport
C ObjC C++ ObjC++
-Deprecated. This switch has no effect.
+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)
C ObjC Var(warn_nonnull)
Warn about NULL being passed to argument slots marked as requiring non-NULL
+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
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
Warn when the compiler reorders code
Wreturn-type
-C ObjC C++ ObjC++
+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
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
C ObjC C++ ObjC++
Give strings the type \"array of char\"
+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. 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
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.
+-finput-charset=<cset> Specify the default character set for source files
fexternal-templates
ffixed-form
C ObjC
+ffixed-line-length-none
+C ObjC
+
ffixed-line-length-
C ObjC Joined
C++ ObjC++
Emit implicit instantiations of templates
+ffriend-injection
+C++ Var(flag_friend_injection)
+Inject friend functions into enclosing namespace
+
flabels-ok
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++
+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++
+ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1)
Enable Objective-C setjmp exception handling runtime
foperator-names
C ObjC C++ ObjC++
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
fthreadsafe-statics
C++ ObjC++
--fno-threadsafe-statics Do not generate thread-safe code for initializing local statics.
+-fno-threadsafe-statics Do not generate thread-safe code for initializing local statics
funsigned-bitfields
C ObjC C++ ObjC++
Use __cxa_atexit to register destructors
fvisibility-inlines-hidden
-C++
+C++ ObjC++
Marks all inlined methods as having hidden visibility
fvtable-gc
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
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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