900 lines
19 KiB
Plaintext
900 lines
19 KiB
Plaintext
; Options for the C, ObjC, C++ and ObjC++ front ends.
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; Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
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;
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; This file is part of GCC.
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;
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; GCC is free software; you can redistribute it and/or modify it under
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; the terms of the GNU General Public License as published by the Free
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; Software Foundation; either version 2, or (at your option) any later
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; version.
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;
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; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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; WARRANTY; without even the implied warranty of MERCHANTABILITY or
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; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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; for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with GCC; see the file COPYING. If not, write to the Free
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; Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
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; 02110-1301, USA.
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; See the GCC internals manual for a description of this file's format.
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; Please try to keep this file in ASCII collating order.
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Language
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C
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Language
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ObjC
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Language
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C++
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Language
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ObjC++
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-output-pch=
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C ObjC C++ ObjC++ Joined Separate
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A
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C ObjC C++ ObjC++ Joined Separate
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-A<question>=<answer> Assert the <answer> to <question>. Putting '-' before <question> disables the <answer> to <question>
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C
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C ObjC C++ ObjC++
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Do not discard comments
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CC
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C ObjC C++ ObjC++
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Do not discard comments in macro expansions
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D
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C ObjC C++ ObjC++ Joined Separate
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-D<macro>[=<val>] Define a <macro> with <val> as its value. If just <macro> is given, <val> is taken to be 1
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E
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C ObjC C++ ObjC++ Undocumented
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F
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C ObjC C++ ObjC++ Joined Separate
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-F <dir> Add <dir> to the end of the main framework include path
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H
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C ObjC C++ ObjC++
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Print the name of header files as they are used
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I
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C ObjC C++ ObjC++ Joined Separate
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-I <dir> Add <dir> to the end of the main include path
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M
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C ObjC C++ ObjC++
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Generate make dependencies
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MD
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C ObjC C++ ObjC++ Separate
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Generate make dependencies and compile
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MF
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C ObjC C++ ObjC++ Joined Separate
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-MF <file> Write dependency output to the given file
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MG
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C ObjC C++ ObjC++
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Treat missing header files as generated files
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MM
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C ObjC C++ ObjC++
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Like -M but ignore system header files
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MMD
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C ObjC C++ ObjC++ Separate
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Like -MD but ignore system header files
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MP
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C ObjC C++ ObjC++
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Generate phony targets for all headers
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MQ
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C ObjC C++ ObjC++ Joined Separate
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-MQ <target> Add a MAKE-quoted target
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MT
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C ObjC C++ ObjC++ Joined Separate
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-MT <target> Add an unquoted target
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P
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C ObjC C++ ObjC++
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Do not generate #line directives
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U
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C ObjC C++ ObjC++ Joined Separate
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-U<macro> Undefine <macro>
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Wabi
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C++ ObjC++ Var(warn_abi)
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Warn about things that will change when compiling with an ABI-compliant compiler
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Wall
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C ObjC C++ ObjC++
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Enable most warning messages
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Wassign-intercept
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ObjC ObjC++ Var(warn_assign_intercept)
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Warn whenever an Objective-C assignment is being intercepted by the garbage collector
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Wbad-function-cast
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C ObjC Var(warn_bad_function_cast)
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Warn about casting functions to incompatible types
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Wc++-compat
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C Var(warn_cxx_compat)
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Warn about C constructs that are not in the common subset of C and C++
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Wcast-qual
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C ObjC C++ ObjC++ Var(warn_cast_qual)
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Warn about casts which discard qualifiers
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Wchar-subscripts
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C ObjC C++ ObjC++ Var(warn_char_subscripts)
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Warn about subscripts whose type is \"char\"
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Wcomment
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C ObjC C++ ObjC++
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Warn about possibly nested block comments, and C++ comments spanning more than one physical line
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Wcomments
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C ObjC C++ ObjC++
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Synonym for -Wcomment
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Wconversion
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C ObjC C++ ObjC++ Var(warn_conversion)
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Warn about possibly confusing type conversions
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Wctor-dtor-privacy
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C++ ObjC++ Var(warn_ctor_dtor_privacy)
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Warn when all constructors and destructors are private
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Wdeclaration-after-statement
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C ObjC Var(warn_declaration_after_statement)
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Warn when a declaration is found after a statement
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Wdeprecated
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C++ ObjC++ Var(warn_deprecated) Init(1)
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Warn about deprecated compiler features
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Wdiv-by-zero
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C ObjC Var(warn_div_by_zero) Init(1)
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Warn about compile-time integer division by zero
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Weffc++
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C++ ObjC++ Var(warn_ecpp)
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Warn about violations of Effective C++ style rules
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Wendif-labels
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C ObjC C++ ObjC++
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Warn about stray tokens after #elif and #endif
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Werror
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C ObjC C++ ObjC++
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; Documented in common.opt
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Werror-implicit-function-declaration
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C ObjC RejectNegative
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Make implicit function declarations an error
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Wfloat-equal
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C ObjC C++ ObjC++ Var(warn_float_equal)
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Warn if testing floating point numbers for equality
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Wformat
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C ObjC C++ ObjC++
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Warn about printf/scanf/strftime/strfmon format string anomalies
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Wformat-extra-args
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C ObjC C++ ObjC++ Var(warn_format_extra_args)
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Warn if passing too many arguments to a function for its format string
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Wformat-nonliteral
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C ObjC C++ ObjC++ Var(warn_format_nonliteral)
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Warn about format strings that are not literals
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Wformat-security
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C ObjC C++ ObjC++ Var(warn_format_security)
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Warn about possible security problems with format functions
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Wformat-y2k
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C ObjC C++ ObjC++ Var(warn_format_y2k)
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Warn about strftime formats yielding 2-digit years
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Wformat-zero-length
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C ObjC Var(warn_format_zero_length)
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Warn about zero-length formats
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Wformat=
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C ObjC C++ ObjC++ Joined
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Winit-self
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C ObjC C++ ObjC++ Var(warn_init_self)
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Warn about variables which are initialized to themselves
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Wimplicit
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C ObjC C++ ObjC++
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Wimplicit-function-declaration
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C ObjC Var(mesg_implicit_function_declaration) Init(-1)
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Warn about implicit function declarations
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Wimplicit-int
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C ObjC Var(warn_implicit_int)
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Warn when a declaration does not specify a type
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Wimport
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C ObjC C++ ObjC++
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Deprecated. This switch has no effect
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Wint-to-pointer-cast
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C ObjC Var(warn_int_to_pointer_cast) Init(1)
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Warn when there is a cast to a pointer from an integer of a different size
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Winvalid-offsetof
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C++ ObjC++ Var(warn_invalid_offsetof) Init(1)
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Warn about invalid uses of the \"offsetof\" macro
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Winvalid-pch
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C ObjC C++ ObjC++
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Warn about PCH files that are found but not used
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Wlong-long
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C ObjC C++ ObjC++ Var(warn_long_long) Init(1)
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Do not warn about using \"long long\" when -pedantic
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Wmain
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C ObjC
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Warn about suspicious declarations of \"main\"
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Wmissing-braces
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C ObjC C++ ObjC++ Var(warn_missing_braces)
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Warn about possibly missing braces around initializers
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Wmissing-declarations
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C ObjC Var(warn_missing_declarations)
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Warn about global functions without previous declarations
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Wmissing-field-initializers
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C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1)
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Warn about missing fields in struct initializers
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Wmissing-format-attribute
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C ObjC C++ ObjC++ Var(warn_missing_format_attribute)
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Warn about functions which might be candidates for format attributes
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Wmissing-include-dirs
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C ObjC C++ ObjC++
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Warn about user-specified include directories that do not exist
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Wmissing-prototypes
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C ObjC Var(warn_missing_prototypes)
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Warn about global functions without prototypes
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Wmultichar
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C ObjC C++ ObjC++
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Warn about use of multi-character character constants
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Wnested-externs
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C ObjC Var(warn_nested_externs)
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Warn about \"extern\" declarations not at file scope
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Wnon-template-friend
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C++ ObjC++ Var(warn_nontemplate_friend) Init(1)
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Warn when non-templatized friend functions are declared within a template
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Wnon-virtual-dtor
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C++ ObjC++ Var(warn_nonvdtor)
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Warn about non-virtual destructors
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Wnonnull
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C ObjC Var(warn_nonnull)
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Warn about NULL being passed to argument slots marked as requiring non-NULL
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Wnormalized=
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C ObjC C++ ObjC++ Joined
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-Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings
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Wold-style-cast
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C++ ObjC++ Var(warn_old_style_cast)
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Warn if a C-style cast is used in a program
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Wold-style-definition
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C ObjC Var(warn_old_style_definition)
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Warn if an old-style parameter definition is used
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Woverloaded-virtual
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C++ ObjC++ Var(warn_overloaded_virtual)
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Warn about overloaded virtual function names
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Wparentheses
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C ObjC C++ ObjC++ Var(warn_parentheses)
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Warn about possibly missing parentheses
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Wpmf-conversions
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C++ ObjC++ Var(warn_pmf2ptr) Init(1)
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Warn when converting the type of pointers to member functions
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Wpointer-arith
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C ObjC C++ ObjC++ Var(warn_pointer_arith)
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Warn about function pointer arithmetic
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Wpointer-to-int-cast
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C ObjC Var(warn_pointer_to_int_cast) Init(1)
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Warn when a pointer is cast to an integer of a different size
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Wpragmas
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C ObjC C++ ObjC++ Var(warn_pragmas) Init(1)
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Warn about misuses of pragmas
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Wprotocol
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ObjC ObjC++ Var(warn_protocol) Init(1)
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Warn if inherited methods are unimplemented
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Wredundant-decls
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C ObjC C++ ObjC++ Var(warn_redundant_decls)
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Warn about multiple declarations of the same object
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Wreorder
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C++ ObjC++ Var(warn_reorder)
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Warn when the compiler reorders code
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Wreturn-type
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C ObjC C++ ObjC++ Var(warn_return_type)
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Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++)
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Wselector
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ObjC ObjC++ Var(warn_selector)
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Warn if a selector has multiple methods
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Wsequence-point
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C ObjC C++ ObjC++ Var(warn_sequence_point)
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Warn about possible violations of sequence point rules
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Wsign-compare
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C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1)
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Warn about signed-unsigned comparisons
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Wsign-promo
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C++ ObjC++ Var(warn_sign_promo)
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Warn when overload promotes from unsigned to signed
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Wstrict-null-sentinel
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C++ ObjC++
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Warn about uncasted NULL used as sentinel
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Wstrict-prototypes
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C ObjC Var(warn_strict_prototypes)
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Warn about unprototyped function declarations
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Wstrict-selector-match
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ObjC ObjC++ Var(warn_strict_selector_match)
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Warn if type signatures of candidate methods do not match exactly
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Wsynth
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C++ ObjC++ Var(warn_synth)
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Warn when synthesis behavior differs from Cfront
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Wsystem-headers
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C ObjC C++ ObjC++
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Do not suppress warnings from system headers
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Wtraditional
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C ObjC Var(warn_traditional)
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Warn about features not present in traditional C
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Wtrigraphs
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C ObjC C++ ObjC++
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Warn if trigraphs are encountered that might affect the meaning of the program
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Wundeclared-selector
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ObjC ObjC++ Var(warn_undeclared_selector)
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Warn about @selector()s without previously declared methods
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Wundef
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C ObjC C++ ObjC++
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Warn if an undefined macro is used in an #if directive
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Wunknown-pragmas
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C ObjC C++ ObjC++
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Warn about unrecognized pragmas
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Wunused-macros
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C ObjC C++ ObjC++
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Warn about macros defined in the main file that are not used
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Wvariadic-macros
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C ObjC C++ ObjC++
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Do not warn about using variadic macros when -pedantic
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Wwrite-strings
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C ObjC C++ ObjC++
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Give strings the type \"array of char\"
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Wpointer-sign
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C ObjC Var(warn_pointer_sign) Init(-1)
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Warn when a pointer differs in signedness in an assignment
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ansi
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C ObjC C++ ObjC++
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A synonym for -std=c89 (for C) or -std=c++98 (for C++)
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; This should really just be C++/ObjC++ but we (NetBSD) use it when
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; calling C and ObjC compilers as well.
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cxx-isystem
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C ObjC C++ ObjC++ Joined Separate
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-cxx-isystem <dir> Add <dir> to the start of the C++ system include path
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d
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C ObjC C++ ObjC++ Joined
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; Documented in common.opt. FIXME - what about -dI, -dD, -dN and -dD?
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faccess-control
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C++ ObjC++
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Enforce class member access control semantics
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fall-virtual
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C++ ObjC++
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falt-external-templates
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C++ ObjC++
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Change when template instances are emitted
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fasm
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C ObjC C++ ObjC++
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Recognize the \"asm\" keyword
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fbuiltin
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C ObjC C++ ObjC++
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Recognize built-in functions
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fbuiltin-
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C ObjC C++ ObjC++ Joined
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fcheck-new
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C++ ObjC++
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Check the return value of new
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fcond-mismatch
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C ObjC C++ ObjC++
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Allow the arguments of the '?' operator to have different types
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fconserve-space
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C++ ObjC++
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Reduce the size of object files
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fconst-strings
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C++ ObjC++
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Make string literals \"const char[]\" not \"char[]\"
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fconstant-string-class=
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ObjC ObjC++ Joined
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-fconst-string-class=<name> Use class <name> for constant strings
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fdefault-inline
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C++ ObjC++
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Inline member functions by default
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fdollars-in-identifiers
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C ObjC C++ ObjC++
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Permit '$' as an identifier character
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felide-constructors
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C++ ObjC++
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fenforce-eh-specs
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C++ ObjC++
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Generate code to check exception specifications
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fenum-int-equiv
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C++ ObjC++
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fexec-charset=
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C ObjC C++ ObjC++ Joined RejectNegative
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-fexec-charset=<cset> Convert all strings and character constants to character set <cset>
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fextended-identifiers
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C ObjC C++ ObjC++
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Permit universal character names (\\u and \\U) in identifiers
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finput-charset=
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C ObjC C++ ObjC++ Joined RejectNegative
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-finput-charset=<cset> Specify the default character set for source files
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fexternal-templates
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C++ ObjC++
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ffixed-form
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C ObjC
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ffixed-line-length-none
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C ObjC
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ffixed-line-length-
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C ObjC Joined
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ffor-scope
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C++ ObjC++
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Scope of for-init-statement variables is local to the loop
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ffreestanding
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C ObjC
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Do not assume that standard C libraries and \"main\" exist
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fgnu-keywords
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C++ ObjC++
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Recognize GNU-defined keywords
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fgnu-runtime
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ObjC ObjC++
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Generate code for GNU runtime environment
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fguiding-decls
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C++ ObjC++
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fhandle-exceptions
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C++ ObjC++
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fhonor-std
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C++ ObjC++
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fhosted
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C ObjC
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Assume normal C execution environment
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fhuge-objects
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C++ ObjC++
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Enable support for huge objects
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fimplement-inlines
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C++ ObjC++
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Export functions even if they can be inlined
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fimplicit-inline-templates
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C++ ObjC++
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Emit implicit instantiations of inline templates
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fimplicit-templates
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C++ ObjC++
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Emit implicit instantiations of templates
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ffriend-injection
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C++ Var(flag_friend_injection)
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Inject friend functions into enclosing namespace
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flabels-ok
|
|
C++ ObjC++
|
|
|
|
fms-extensions
|
|
C ObjC C++ ObjC++
|
|
Don't warn about uses of Microsoft extensions
|
|
|
|
fname-mangling-version-
|
|
C++ ObjC++ Joined
|
|
|
|
fnew-abi
|
|
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++
|
|
|
|
; Generate special '- .cxx_construct' and '- .cxx_destruct' methods
|
|
; to initialize any non-POD ivars in Objective-C++ classes.
|
|
fobjc-call-cxx-cdtors
|
|
ObjC++ Var(flag_objc_call_cxx_cdtors)
|
|
Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed
|
|
|
|
fobjc-direct-dispatch
|
|
ObjC ObjC++ Var(flag_objc_direct_dispatch)
|
|
Allow fast jumps to the message dispatcher
|
|
|
|
; Nonzero means that we will allow new ObjC exception syntax (@throw,
|
|
; @try, etc.) in source code.
|
|
fobjc-exceptions
|
|
ObjC ObjC++ Var(flag_objc_exceptions)
|
|
Enable Objective-C exception and synchronization syntax
|
|
|
|
fobjc-gc
|
|
ObjC ObjC++ Var(flag_objc_gc)
|
|
Enable garbage collection (GC) in Objective-C/Objective-C++ programs
|
|
|
|
; Nonzero means that we generate NeXT setjmp based exceptions.
|
|
fobjc-sjlj-exceptions
|
|
ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1)
|
|
Enable Objective-C setjmp exception handling runtime
|
|
|
|
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
|
|
|
|
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
|
|
|
|
fvisibility-inlines-hidden
|
|
C++ ObjC++
|
|
Marks all inlined methods as having hidden visibility
|
|
|
|
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>
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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.
|