Mercurial > hg > CbC > CbC_gcc
annotate gcc/c.opt @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | 77e2b8dfacca |
| children |
| rev | line source |
|---|---|
| 0 | 1 ; Options for the C, ObjC, C++ and ObjC++ front ends. |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
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changeset
|
2 ; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
| 0 | 3 ; Free Software Foundation, Inc. |
| 4 ; | |
| 5 ; This file is part of GCC. | |
| 6 ; | |
| 7 ; GCC is free software; you can redistribute it and/or modify it under | |
| 8 ; the terms of the GNU General Public License as published by the Free | |
| 9 ; Software Foundation; either version 3, or (at your option) any later | |
| 10 ; version. | |
| 11 ; | |
| 12 ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 ; WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 ; for more details. | |
| 16 ; | |
| 17 ; You should have received a copy of the GNU General Public License | |
| 18 ; along with GCC; see the file COPYING3. If not see | |
| 19 ; <http://www.gnu.org/licenses/>. | |
| 20 | |
| 21 ; See the GCC internals manual for a description of this file's format. | |
| 22 | |
| 23 ; Please try to keep this file in ASCII collating order. | |
| 24 | |
| 25 Language | |
| 26 C | |
| 27 | |
| 28 Language | |
| 29 ObjC | |
| 30 | |
| 31 Language | |
| 32 C++ | |
| 33 | |
| 34 Language | |
| 35 ObjC++ | |
| 36 | |
| 37 -output-pch= | |
| 38 C ObjC C++ ObjC++ Joined Separate | |
| 39 | |
| 40 A | |
| 41 C ObjC C++ ObjC++ Joined Separate | |
| 42 -A<question>=<answer> Assert the <answer> to <question>. Putting '-' before <question> disables the <answer> to <question> | |
| 43 | |
| 44 C | |
| 45 C ObjC C++ ObjC++ | |
| 46 Do not discard comments | |
| 47 | |
| 48 CC | |
| 49 C ObjC C++ ObjC++ | |
| 50 Do not discard comments in macro expansions | |
| 51 | |
| 52 D | |
| 53 C ObjC C++ ObjC++ Joined Separate | |
| 54 -D<macro>[=<val>] Define a <macro> with <val> as its value. If just <macro> is given, <val> is taken to be 1 | |
| 55 | |
| 56 E | |
| 57 C ObjC C++ ObjC++ Undocumented | |
| 58 | |
| 59 F | |
| 60 C ObjC C++ ObjC++ Joined Separate | |
| 61 -F <dir> Add <dir> to the end of the main framework include path | |
| 62 | |
| 63 H | |
| 64 C ObjC C++ ObjC++ | |
| 65 Print the name of header files as they are used | |
| 66 | |
| 67 I | |
| 68 C ObjC C++ ObjC++ Joined Separate | |
| 69 -I <dir> Add <dir> to the end of the main include path | |
| 70 | |
| 71 M | |
| 72 C ObjC C++ ObjC++ | |
| 73 Generate make dependencies | |
| 74 | |
| 75 MD | |
| 76 C ObjC C++ ObjC++ Separate | |
| 77 Generate make dependencies and compile | |
| 78 | |
| 79 MF | |
| 80 C ObjC C++ ObjC++ Joined Separate | |
| 81 -MF <file> Write dependency output to the given file | |
| 82 | |
| 83 MG | |
| 84 C ObjC C++ ObjC++ | |
| 85 Treat missing header files as generated files | |
| 86 | |
| 87 MM | |
| 88 C ObjC C++ ObjC++ | |
| 89 Like -M but ignore system header files | |
| 90 | |
| 91 MMD | |
| 92 C ObjC C++ ObjC++ Separate | |
| 93 Like -MD but ignore system header files | |
| 94 | |
| 95 MP | |
| 96 C ObjC C++ ObjC++ | |
| 97 Generate phony targets for all headers | |
| 98 | |
| 99 MQ | |
| 100 C ObjC C++ ObjC++ Joined Separate | |
| 101 -MQ <target> Add a MAKE-quoted target | |
| 102 | |
| 103 MT | |
| 104 C ObjC C++ ObjC++ Joined Separate | |
| 105 -MT <target> Add an unquoted target | |
| 106 | |
| 107 P | |
| 108 C ObjC C++ ObjC++ | |
| 109 Do not generate #line directives | |
| 110 | |
| 111 U | |
| 112 C ObjC C++ ObjC++ Joined Separate | |
| 113 -U<macro> Undefine <macro> | |
| 114 | |
| 115 Wabi | |
|
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116 C ObjC C++ ObjC++ LTO Var(warn_abi) Warning |
| 0 | 117 Warn about things that will change when compiling with an ABI-compliant compiler |
| 118 | |
| 119 Wpsabi | |
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120 C ObjC C++ ObjC++ LTO Var(warn_psabi) Init(1) Undocumented |
| 0 | 121 |
| 122 Waddress | |
| 123 C ObjC C++ ObjC++ Var(warn_address) Warning | |
| 124 Warn about suspicious uses of memory addresses | |
| 125 | |
| 126 Wall | |
| 127 C ObjC C++ ObjC++ Warning | |
| 128 Enable most warning messages | |
| 129 | |
| 130 Wassign-intercept | |
| 131 ObjC ObjC++ Var(warn_assign_intercept) Warning | |
| 132 Warn whenever an Objective-C assignment is being intercepted by the garbage collector | |
| 133 | |
| 134 Wbad-function-cast | |
| 135 C ObjC Var(warn_bad_function_cast) Warning | |
| 136 Warn about casting functions to incompatible types | |
| 137 | |
| 138 Wbuiltin-macro-redefined | |
| 139 C ObjC C++ ObjC++ Warning | |
| 140 Warn when a built-in preprocessor macro is undefined or redefined | |
| 141 | |
| 142 Wc++-compat | |
| 143 C ObjC Var(warn_cxx_compat) Warning | |
| 144 Warn about C constructs that are not in the common subset of C and C++ | |
| 145 | |
| 146 Wc++0x-compat | |
| 147 C++ ObjC++ Var(warn_cxx0x_compat) Warning | |
| 148 Warn about C++ constructs whose meaning differs between ISO C++ 1998 and ISO C++ 200x | |
| 149 | |
| 150 Wcast-qual | |
| 151 C ObjC C++ ObjC++ Var(warn_cast_qual) Warning | |
| 152 Warn about casts which discard qualifiers | |
| 153 | |
| 154 Wchar-subscripts | |
| 155 C ObjC C++ ObjC++ Var(warn_char_subscripts) Warning | |
| 156 Warn about subscripts whose type is \"char\" | |
| 157 | |
| 158 Wclobbered | |
| 159 C ObjC C++ ObjC++ Var(warn_clobbered) Init(-1) Warning | |
| 160 Warn about variables that might be changed by \"longjmp\" or \"vfork\" | |
| 161 | |
| 162 Wcomment | |
| 163 C ObjC C++ ObjC++ Warning | |
| 164 Warn about possibly nested block comments, and C++ comments spanning more than one physical line | |
| 165 | |
| 166 Wcomments | |
| 167 C ObjC C++ ObjC++ Warning | |
| 168 Synonym for -Wcomment | |
| 169 | |
| 170 Wconversion | |
| 171 C ObjC C++ ObjC++ Var(warn_conversion) Warning | |
| 172 Warn for implicit type conversions that may change a value | |
| 173 | |
|
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174 Wconversion-null |
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parents:
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175 C++ ObjC++ Var(warn_conversion_null) Init(1) Warning |
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b7f97abdc517
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parents:
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176 Warn for converting NULL from/to a non-pointer type |
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b7f97abdc517
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
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177 |
| 0 | 178 Wsign-conversion |
| 179 C ObjC C++ ObjC++ Var(warn_sign_conversion) Init(-1) | |
| 180 Warn for implicit type conversions between signed and unsigned integers | |
| 181 | |
| 182 Wctor-dtor-privacy | |
| 183 C++ ObjC++ Var(warn_ctor_dtor_privacy) Warning | |
| 184 Warn when all constructors and destructors are private | |
| 185 | |
| 186 Wdeclaration-after-statement | |
| 187 C ObjC Var(warn_declaration_after_statement) Warning | |
| 188 Warn when a declaration is found after a statement | |
| 189 | |
| 190 Wdeprecated | |
| 191 C C++ ObjC ObjC++ Var(warn_deprecated) Init(1) Warning | |
| 192 Warn if a deprecated compiler feature, class, method, or field is used | |
| 193 | |
| 194 Wdiv-by-zero | |
| 195 C ObjC C++ ObjC++ Var(warn_div_by_zero) Init(1) Warning | |
| 196 Warn about compile-time integer division by zero | |
| 197 | |
| 198 Weffc++ | |
| 199 C++ ObjC++ Var(warn_ecpp) Warning | |
| 200 Warn about violations of Effective C++ style rules | |
| 201 | |
| 202 Wempty-body | |
| 203 C ObjC C++ ObjC++ Var(warn_empty_body) Init(-1) Warning | |
| 204 Warn about an empty body in an if or else statement | |
| 205 | |
| 206 Wendif-labels | |
| 207 C ObjC C++ ObjC++ Warning | |
| 208 Warn about stray tokens after #elif and #endif | |
| 209 | |
| 210 Wenum-compare | |
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211 C ObjC C++ ObjC++ Var(warn_enum_compare) Init(-1) Warning |
| 0 | 212 Warn about comparison of different enum types |
| 213 | |
| 214 Werror | |
| 215 C ObjC C++ ObjC++ | |
| 216 ; Documented in common.opt | |
| 217 | |
| 218 Werror-implicit-function-declaration | |
| 219 C ObjC RejectNegative Warning | |
| 220 This switch is deprecated; use -Werror=implicit-function-declaration instead | |
| 221 | |
| 222 Wfloat-equal | |
| 223 C ObjC C++ ObjC++ Var(warn_float_equal) Warning | |
| 224 Warn if testing floating point numbers for equality | |
| 225 | |
| 226 Wformat | |
| 227 C ObjC C++ ObjC++ Warning | |
| 228 Warn about printf/scanf/strftime/strfmon format string anomalies | |
| 229 | |
| 230 Wformat-extra-args | |
| 231 C ObjC C++ ObjC++ Var(warn_format_extra_args) Warning | |
| 232 Warn if passing too many arguments to a function for its format string | |
| 233 | |
| 234 Wformat-nonliteral | |
| 235 C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning | |
| 236 Warn about format strings that are not literals | |
| 237 | |
| 238 Wformat-contains-nul | |
| 239 C ObjC C++ ObjC++ Var(warn_format_contains_nul) Warning | |
| 240 Warn about format strings that contain NUL bytes | |
| 241 | |
| 242 Wformat-security | |
| 243 C ObjC C++ ObjC++ Var(warn_format_security) Warning | |
| 244 Warn about possible security problems with format functions | |
| 245 | |
| 246 Wformat-y2k | |
| 247 C ObjC C++ ObjC++ Var(warn_format_y2k) Warning | |
| 248 Warn about strftime formats yielding 2-digit years | |
| 249 | |
| 250 Wformat-zero-length | |
| 251 C ObjC Var(warn_format_zero_length) Warning | |
| 252 Warn about zero-length formats | |
| 253 | |
| 254 Wformat= | |
| 255 C ObjC C++ ObjC++ Joined Warning | |
| 256 | |
| 257 Wignored-qualifiers | |
| 258 C C++ Var(warn_ignored_qualifiers) Init(-1) Warning | |
| 259 Warn whenever type qualifiers are ignored. | |
| 260 | |
| 261 Winit-self | |
| 262 C ObjC C++ ObjC++ Var(warn_init_self) Warning | |
| 263 Warn about variables which are initialized to themselves | |
| 264 | |
| 265 Wimplicit | |
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266 C ObjC Var(warn_implicit) Init(-1) Warning |
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parents:
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267 Warn about implicit declarations |
| 0 | 268 |
| 269 Wimplicit-function-declaration | |
| 270 C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning | |
| 271 Warn about implicit function declarations | |
| 272 | |
| 273 Wimplicit-int | |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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274 C ObjC Var(warn_implicit_int) Init(-1) Warning |
| 0 | 275 Warn when a declaration does not specify a type |
| 276 | |
| 277 Wimport | |
| 278 C ObjC C++ ObjC++ Undocumented | |
| 279 | |
| 280 Wint-to-pointer-cast | |
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63
b7f97abdc517
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
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281 C ObjC C++ ObjC++ Var(warn_int_to_pointer_cast) Init(1) Warning |
| 0 | 282 Warn when there is a cast to a pointer from an integer of a different size |
| 283 | |
| 284 Winvalid-offsetof | |
| 285 C++ ObjC++ Var(warn_invalid_offsetof) Init(1) Warning | |
| 286 Warn about invalid uses of the \"offsetof\" macro | |
| 287 | |
| 288 Winvalid-pch | |
| 289 C ObjC C++ ObjC++ Warning | |
| 290 Warn about PCH files that are found but not used | |
| 291 | |
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292 Wjump-misses-init |
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293 C ObjC Var(warn_jump_misses_init) Init(-1) Warning |
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294 Warn when a jump misses a variable initialization |
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295 |
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296 Wlogical-op |
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297 C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning |
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298 Warn when a logical operator is suspiciously always evaluating to true or false |
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299 |
| 0 | 300 Wlong-long |
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301 C ObjC C++ ObjC++ Var(warn_long_long) Init(-1) Warning |
| 0 | 302 Do not warn about using \"long long\" when -pedantic |
| 303 | |
| 304 Wmain | |
| 305 C ObjC C++ ObjC++ Var(warn_main) Init(-1) Warning | |
| 306 Warn about suspicious declarations of \"main\" | |
| 307 | |
| 308 Wmissing-braces | |
| 309 C ObjC C++ ObjC++ Var(warn_missing_braces) Warning | |
| 310 Warn about possibly missing braces around initializers | |
| 311 | |
| 312 Wmissing-declarations | |
| 313 C ObjC C++ ObjC++ Var(warn_missing_declarations) Warning | |
| 314 Warn about global functions without previous declarations | |
| 315 | |
| 316 Wmissing-field-initializers | |
| 317 C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1) Warning | |
| 318 Warn about missing fields in struct initializers | |
| 319 | |
| 320 Wmissing-format-attribute | |
| 321 C ObjC C++ ObjC++ Var(warn_missing_format_attribute) Warning | |
| 322 Warn about functions which might be candidates for format attributes | |
| 323 | |
| 324 Wmissing-include-dirs | |
| 325 C ObjC C++ ObjC++ Warning | |
| 326 Warn about user-specified include directories that do not exist | |
| 327 | |
| 328 Wmissing-parameter-type | |
| 329 C ObjC Var(warn_missing_parameter_type) Init(-1) Warning | |
| 330 Warn about function parameters declared without a type specifier in K&R-style functions | |
| 331 | |
| 332 Wmissing-prototypes | |
| 333 C ObjC Var(warn_missing_prototypes) Warning | |
| 334 Warn about global functions without prototypes | |
| 335 | |
| 336 Wmultichar | |
| 337 C ObjC C++ ObjC++ Warning | |
| 338 Warn about use of multi-character character constants | |
| 339 | |
| 340 Wnested-externs | |
| 341 C ObjC Var(warn_nested_externs) Warning | |
| 342 Warn about \"extern\" declarations not at file scope | |
| 343 | |
| 344 Wnon-template-friend | |
| 345 C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warning | |
| 346 Warn when non-templatized friend functions are declared within a template | |
| 347 | |
| 348 Wnon-virtual-dtor | |
| 349 C++ ObjC++ Var(warn_nonvdtor) Warning | |
| 350 Warn about non-virtual destructors | |
| 351 | |
| 352 Wnonnull | |
| 353 C ObjC Var(warn_nonnull) Warning | |
| 354 Warn about NULL being passed to argument slots marked as requiring non-NULL | |
| 355 | |
| 356 Wnormalized= | |
| 357 C ObjC C++ ObjC++ Joined Warning | |
| 358 -Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings | |
| 359 | |
| 360 Wold-style-cast | |
| 361 C++ ObjC++ Var(warn_old_style_cast) Warning | |
| 362 Warn if a C-style cast is used in a program | |
| 363 | |
| 364 Wold-style-declaration | |
| 365 C ObjC Var(warn_old_style_declaration) Init(-1) Warning | |
| 366 Warn for obsolescent usage in a declaration | |
| 367 | |
| 368 Wold-style-definition | |
| 369 C ObjC Var(warn_old_style_definition) Warning | |
| 370 Warn if an old-style parameter definition is used | |
| 371 | |
| 372 Woverlength-strings | |
| 373 C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1) Warning | |
| 374 Warn if a string is longer than the maximum portable length specified by the standard | |
| 375 | |
| 376 Woverloaded-virtual | |
| 377 C++ ObjC++ Var(warn_overloaded_virtual) Warning | |
| 378 Warn about overloaded virtual function names | |
| 379 | |
| 380 Woverride-init | |
| 381 C ObjC Var(warn_override_init) Init(-1) Warning | |
| 382 Warn about overriding initializers without side effects | |
| 383 | |
| 384 Wpacked-bitfield-compat | |
| 385 C ObjC C++ ObjC++ Var(warn_packed_bitfield_compat) Init(-1) Warning | |
| 386 Warn about packed bit-fields whose offset changed in GCC 4.4 | |
| 387 | |
| 388 Wparentheses | |
| 389 C ObjC C++ ObjC++ Var(warn_parentheses) Warning | |
| 390 Warn about possibly missing parentheses | |
| 391 | |
| 392 Wpmf-conversions | |
| 393 C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning | |
| 394 Warn when converting the type of pointers to member functions | |
| 395 | |
| 396 Wpointer-arith | |
| 397 C ObjC C++ ObjC++ Var(warn_pointer_arith) Warning | |
| 398 Warn about function pointer arithmetic | |
| 399 | |
| 400 Wpointer-to-int-cast | |
| 401 C ObjC Var(warn_pointer_to_int_cast) Init(1) Warning | |
| 402 Warn when a pointer is cast to an integer of a different size | |
| 403 | |
| 404 Wpragmas | |
| 405 C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) Warning | |
| 406 Warn about misuses of pragmas | |
| 407 | |
| 408 Wprotocol | |
| 409 ObjC ObjC++ Var(warn_protocol) Init(1) Warning | |
| 410 Warn if inherited methods are unimplemented | |
| 411 | |
| 412 Wredundant-decls | |
| 413 C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning | |
| 414 Warn about multiple declarations of the same object | |
| 415 | |
| 416 Wreorder | |
| 417 C++ ObjC++ Var(warn_reorder) Warning | |
| 418 Warn when the compiler reorders code | |
| 419 | |
| 420 Wreturn-type | |
| 421 C ObjC C++ ObjC++ Var(warn_return_type) Warning | |
| 422 Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++) | |
| 423 | |
| 424 Wselector | |
| 425 ObjC ObjC++ Var(warn_selector) Warning | |
| 426 Warn if a selector has multiple methods | |
| 427 | |
| 428 Wsequence-point | |
| 429 C ObjC C++ ObjC++ Var(warn_sequence_point) Warning | |
| 430 Warn about possible violations of sequence point rules | |
| 431 | |
| 432 Wsign-compare | |
| 433 C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1) Warning | |
| 434 Warn about signed-unsigned comparisons | |
| 435 | |
| 436 Wsign-promo | |
| 437 C++ ObjC++ Var(warn_sign_promo) Warning | |
| 438 Warn when overload promotes from unsigned to signed | |
| 439 | |
| 440 Wstrict-null-sentinel | |
| 441 C++ ObjC++ Warning | |
| 442 Warn about uncasted NULL used as sentinel | |
| 443 | |
| 444 Wstrict-prototypes | |
| 445 C ObjC Var(warn_strict_prototypes) Warning | |
| 446 Warn about unprototyped function declarations | |
| 447 | |
| 448 Wstrict-selector-match | |
| 449 ObjC ObjC++ Var(warn_strict_selector_match) Warning | |
| 450 Warn if type signatures of candidate methods do not match exactly | |
| 451 | |
| 452 Wsync-nand | |
| 453 C C++ Var(warn_sync_nand) Init(1) Warning | |
| 454 Warn when __sync_fetch_and_nand and __sync_nand_and_fetch built-in functions are used | |
| 455 | |
| 456 Wsynth | |
| 457 C++ ObjC++ Var(warn_synth) Warning | |
| 458 Deprecated. This switch has no effect | |
| 459 | |
| 460 Wsystem-headers | |
| 461 C ObjC C++ ObjC++ Warning | |
| 462 ; Documented in common.opt | |
| 463 | |
| 464 Wtraditional | |
| 465 C ObjC Var(warn_traditional) Warning | |
| 466 Warn about features not present in traditional C | |
| 467 | |
| 468 Wtraditional-conversion | |
| 469 C ObjC Var(warn_traditional_conversion) Warning | |
| 470 Warn of prototypes causing type conversions different from what would happen in the absence of prototype | |
| 471 | |
| 472 Wtrigraphs | |
| 473 C ObjC C++ ObjC++ Warning | |
| 474 Warn if trigraphs are encountered that might affect the meaning of the program | |
| 475 | |
| 476 Wundeclared-selector | |
| 477 ObjC ObjC++ Var(warn_undeclared_selector) Warning | |
| 478 Warn about @selector()s without previously declared methods | |
| 479 | |
| 480 Wundef | |
| 481 C ObjC C++ ObjC++ Warning | |
| 482 Warn if an undefined macro is used in an #if directive | |
| 483 | |
| 484 Wunknown-pragmas | |
| 485 C ObjC C++ ObjC++ Warning | |
| 486 Warn about unrecognized pragmas | |
| 487 | |
|
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488 Wunsuffixed-float-constants |
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489 C ObjC Var(warn_unsuffixed_float_constants) Warning |
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490 Warn about unsuffixed float constants |
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491 |
| 0 | 492 Wunused-macros |
| 493 C ObjC C++ ObjC++ Warning | |
| 494 Warn about macros defined in the main file that are not used | |
| 495 | |
|
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496 Wunused-result |
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497 C ObjC C++ ObjC++ Var(warn_unused_result) Init(1) Warning |
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498 Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value |
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499 |
| 0 | 500 Wvariadic-macros |
| 501 C ObjC C++ ObjC++ Warning | |
| 502 Do not warn about using variadic macros when -pedantic | |
| 503 | |
| 504 Wvla | |
| 505 C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning | |
| 506 Warn if a variable length array is used | |
| 507 | |
| 508 Wvolatile-register-var | |
| 509 C ObjC C++ ObjC++ Var(warn_volatile_register_var) Warning | |
| 510 Warn when a register variable is declared volatile | |
| 511 | |
| 512 Wwrite-strings | |
| 513 C ObjC C++ ObjC++ Var(warn_write_strings) Warning | |
| 514 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. | |
| 515 | |
| 516 Wpointer-sign | |
| 517 C ObjC Var(warn_pointer_sign) Init(-1) Warning | |
| 518 Warn when a pointer differs in signedness in an assignment | |
| 519 | |
| 520 ansi | |
| 521 C ObjC C++ ObjC++ | |
| 522 A synonym for -std=c89 (for C) or -std=c++98 (for C++) | |
| 523 | |
| 524 d | |
| 525 C ObjC C++ ObjC++ Joined | |
| 526 ; Documented in common.opt. FIXME - what about -dI, -dD, -dN and -dD? | |
| 527 | |
| 528 faccess-control | |
| 529 C++ ObjC++ | |
| 530 Enforce class member access control semantics | |
| 531 | |
| 532 fall-virtual | |
| 533 C++ ObjC++ | |
| 534 | |
| 535 falt-external-templates | |
| 536 C++ ObjC++ | |
| 537 Change when template instances are emitted | |
| 538 | |
| 539 fasm | |
| 540 C ObjC C++ ObjC++ | |
| 541 Recognize the \"asm\" keyword | |
| 542 | |
| 543 fbuiltin | |
| 544 C ObjC C++ ObjC++ | |
| 545 Recognize built-in functions | |
| 546 | |
| 547 fbuiltin- | |
| 548 C ObjC C++ ObjC++ Joined | |
| 549 | |
| 550 fcheck-new | |
| 551 C++ ObjC++ | |
| 552 Check the return value of new | |
| 553 | |
| 554 fcond-mismatch | |
| 555 C ObjC C++ ObjC++ | |
| 556 Allow the arguments of the '?' operator to have different types | |
| 557 | |
| 558 fconserve-space | |
| 559 C++ ObjC++ | |
| 560 Reduce the size of object files | |
| 561 | |
| 562 fconstant-string-class= | |
| 563 ObjC ObjC++ Joined | |
| 564 -fconst-string-class=<name> Use class <name> for constant strings | |
| 565 | |
| 36 | 566 fdeduce-init-list |
| 567 C++ ObjC++ Var(flag_deduce_init_list) Init(1) | |
| 568 -fno-deduce-init-list disable deduction of std::initializer_list for a template type parameter from a brace-enclosed initializer-list | |
| 569 | |
| 0 | 570 fdefault-inline |
| 571 C++ ObjC++ | |
| 572 Inline member functions by default | |
| 573 | |
| 574 fdirectives-only | |
| 575 C ObjC C++ ObjC++ | |
| 576 Preprocess directives only. | |
| 577 | |
| 578 fdollars-in-identifiers | |
| 579 C ObjC C++ ObjC++ | |
| 580 Permit '$' as an identifier character | |
| 581 | |
| 582 felide-constructors | |
| 583 C++ ObjC++ | |
| 584 | |
| 585 fenforce-eh-specs | |
| 586 C++ ObjC++ | |
| 587 Generate code to check exception specifications | |
| 588 | |
| 589 fenum-int-equiv | |
| 590 C++ ObjC++ | |
| 591 | |
| 592 fexec-charset= | |
| 593 C ObjC C++ ObjC++ Joined RejectNegative | |
| 594 -fexec-charset=<cset> Convert all strings and character constants to character set <cset> | |
| 595 | |
| 596 fextended-identifiers | |
| 597 C ObjC C++ ObjC++ | |
| 598 Permit universal character names (\\u and \\U) in identifiers | |
| 599 | |
| 600 finput-charset= | |
| 601 C ObjC C++ ObjC++ Joined RejectNegative | |
| 602 -finput-charset=<cset> Specify the default character set for source files | |
| 603 | |
| 604 | |
| 605 fexternal-templates | |
| 606 C++ ObjC++ | |
| 607 | |
| 608 ffor-scope | |
| 609 C++ ObjC++ | |
| 610 Scope of for-init-statement variables is local to the loop | |
| 611 | |
| 612 ffreestanding | |
| 613 C ObjC C++ ObjC++ | |
| 614 Do not assume that standard C libraries and \"main\" exist | |
| 615 | |
| 616 fgnu-keywords | |
| 617 C++ ObjC++ | |
| 618 Recognize GNU-defined keywords | |
| 619 | |
| 620 fgnu-runtime | |
| 621 ObjC ObjC++ | |
| 622 Generate code for GNU runtime environment | |
| 623 | |
| 624 fgnu89-inline | |
| 625 C ObjC Var(flag_gnu89_inline) Init(-1) | |
| 626 Use traditional GNU semantics for inline functions | |
| 627 | |
| 628 fguiding-decls | |
| 629 C++ ObjC++ | |
| 630 | |
| 631 fhandle-exceptions | |
| 632 C++ ObjC++ Optimization | |
| 633 | |
| 634 fhonor-std | |
| 635 C++ ObjC++ | |
| 636 | |
| 637 fhosted | |
| 638 C ObjC | |
| 639 Assume normal C execution environment | |
| 640 | |
| 641 fhuge-objects | |
| 642 C++ ObjC++ | |
| 643 Enable support for huge objects | |
| 644 | |
| 645 fimplement-inlines | |
| 646 C++ ObjC++ | |
| 647 Export functions even if they can be inlined | |
| 648 | |
| 649 fimplicit-inline-templates | |
| 650 C++ ObjC++ | |
| 651 Emit implicit instantiations of inline templates | |
| 652 | |
| 653 fimplicit-templates | |
| 654 C++ ObjC++ | |
| 655 Emit implicit instantiations of templates | |
| 656 | |
| 657 ffriend-injection | |
| 658 C++ ObjC++ Var(flag_friend_injection) | |
| 659 Inject friend functions into enclosing namespace | |
| 660 | |
| 661 flabels-ok | |
| 662 C++ ObjC++ | |
| 663 | |
| 664 flax-vector-conversions | |
| 665 C ObjC C++ ObjC++ | |
| 666 Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types. | |
| 667 | |
| 668 fms-extensions | |
| 669 C ObjC C++ ObjC++ | |
| 670 Don't warn about uses of Microsoft extensions | |
| 671 | |
| 672 fname-mangling-version- | |
| 673 C++ ObjC++ Joined | |
| 674 | |
| 675 fnew-abi | |
| 676 C++ ObjC++ | |
| 677 | |
| 678 fnext-runtime | |
| 679 ObjC ObjC++ | |
| 680 Generate code for NeXT (Apple Mac OS X) runtime environment | |
| 681 | |
| 682 fnil-receivers | |
| 683 ObjC ObjC++ | |
| 684 Assume that receivers of Objective-C messages may be nil | |
| 685 | |
| 686 fnonansi-builtins | |
| 687 C++ ObjC++ | |
| 688 | |
| 689 fnonnull-objects | |
| 690 C++ ObjC++ | |
| 691 | |
|
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692 fnothrow-opt |
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693 C++ ObjC++ Optimization Var(flag_nothrow_opt) |
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694 Treat a throw() exception specification as noexcept to improve code size |
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695 |
| 0 | 696 ; Generate special '- .cxx_construct' and '- .cxx_destruct' methods |
| 697 ; to initialize any non-POD ivars in Objective-C++ classes. | |
| 698 fobjc-call-cxx-cdtors | |
| 699 ObjC++ Var(flag_objc_call_cxx_cdtors) | |
| 700 Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed | |
| 701 | |
| 702 fobjc-direct-dispatch | |
| 703 ObjC ObjC++ Var(flag_objc_direct_dispatch) | |
| 704 Allow fast jumps to the message dispatcher | |
| 705 | |
| 706 ; Nonzero means that we will allow new ObjC exception syntax (@throw, | |
| 707 ; @try, etc.) in source code. | |
| 708 fobjc-exceptions | |
| 709 ObjC ObjC++ Var(flag_objc_exceptions) | |
| 710 Enable Objective-C exception and synchronization syntax | |
| 711 | |
| 712 fobjc-gc | |
| 713 ObjC ObjC++ Var(flag_objc_gc) | |
| 714 Enable garbage collection (GC) in Objective-C/Objective-C++ programs | |
| 715 | |
| 716 ; Nonzero means that we generate NeXT setjmp based exceptions. | |
| 717 fobjc-sjlj-exceptions | |
| 718 ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1) | |
| 719 Enable Objective-C setjmp exception handling runtime | |
| 720 | |
| 721 fopenmp | |
| 722 C ObjC C++ ObjC++ Var(flag_openmp) | |
| 723 Enable OpenMP (implies -frecursive in Fortran) | |
| 724 | |
| 725 foperator-names | |
| 726 C++ ObjC++ | |
| 727 Recognize C++ keywords like \"compl\" and \"xor\" | |
| 728 | |
| 729 foptional-diags | |
| 730 C++ ObjC++ | |
| 731 Enable optional diagnostics | |
| 732 | |
| 733 fpch-deps | |
| 734 C ObjC C++ ObjC++ | |
| 735 | |
| 736 fpch-preprocess | |
| 737 C ObjC C++ ObjC++ | |
| 738 Look for and use PCH files even when preprocessing | |
| 739 | |
| 740 fpermissive | |
| 741 C++ ObjC++ | |
| 742 Downgrade conformance errors to warnings | |
| 743 | |
| 744 fpreprocessed | |
| 745 C ObjC C++ ObjC++ | |
| 746 Treat the input file as already preprocessed | |
| 747 | |
|
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748 fpretty-templates |
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749 C++ ObjC++ |
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750 -fno-pretty-templates Do not pretty-print template specializations as the template signature followed by the arguments |
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751 |
| 0 | 752 freplace-objc-classes |
| 753 ObjC ObjC++ | |
| 754 Used in Fix-and-Continue mode to indicate that object files may be swapped in at runtime | |
| 755 | |
| 756 frepo | |
| 757 C++ ObjC++ | |
| 758 Enable automatic template instantiation | |
| 759 | |
| 760 frtti | |
| 761 C++ ObjC++ Optimization | |
| 762 Generate run time type descriptor information | |
| 763 | |
| 764 fshort-double | |
| 765 C ObjC C++ ObjC++ Optimization | |
| 766 Use the same size for double as for float | |
| 767 | |
| 768 fshort-enums | |
| 769 C ObjC C++ ObjC++ Optimization | |
| 770 Use the narrowest integer type possible for enumeration types | |
| 771 | |
| 772 fshort-wchar | |
| 773 C ObjC C++ ObjC++ Optimization | |
| 774 Force the underlying type for \"wchar_t\" to be \"unsigned short\" | |
| 775 | |
| 776 fsigned-bitfields | |
| 777 C ObjC C++ ObjC++ | |
| 778 When \"signed\" or \"unsigned\" is not given make the bitfield signed | |
| 779 | |
| 780 fsigned-char | |
|
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781 C ObjC C++ ObjC++ LTO |
| 0 | 782 Make \"char\" signed by default |
| 783 | |
| 784 fsquangle | |
| 785 C++ ObjC++ | |
| 786 | |
| 787 fstats | |
| 788 C++ ObjC++ | |
| 789 Display statistics accumulated during compilation | |
| 790 | |
|
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791 fstrict-enums |
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792 C++ ObjC++ Optimization Var(flag_strict_enums) |
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793 Assume that values of enumeration type are always within the minimum range of that type |
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794 |
| 0 | 795 fstrict-prototype |
| 796 C++ ObjC++ | |
| 797 | |
| 798 ftabstop= | |
| 799 C ObjC C++ ObjC++ Joined RejectNegative UInteger | |
| 800 -ftabstop=<number> Distance between tab stops for column reporting | |
| 801 | |
| 802 ftemplate-depth- | |
|
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803 C++ ObjC++ Joined RejectNegative UInteger Undocumented |
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804 |
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805 ftemplate-depth= |
| 0 | 806 C++ ObjC++ Joined RejectNegative UInteger |
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807 -ftemplate-depth=<number> Specify maximum template instantiation depth |
| 0 | 808 |
| 809 fthis-is-variable | |
| 810 C++ ObjC++ | |
| 811 | |
| 812 fthreadsafe-statics | |
| 813 C++ ObjC++ Optimization | |
| 814 -fno-threadsafe-statics Do not generate thread-safe code for initializing local statics | |
| 815 | |
| 816 funsigned-bitfields | |
| 817 C ObjC C++ ObjC++ | |
| 818 When \"signed\" or \"unsigned\" is not given make the bitfield unsigned | |
| 819 | |
| 820 funsigned-char | |
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821 C ObjC C++ ObjC++ LTO |
| 0 | 822 Make \"char\" unsigned by default |
| 823 | |
| 824 fuse-cxa-atexit | |
| 825 C++ ObjC++ | |
| 826 Use __cxa_atexit to register destructors | |
| 827 | |
| 828 fuse-cxa-get-exception-ptr | |
| 829 C++ ObjC++ | |
| 830 Use __cxa_get_exception_ptr in exception handling | |
| 831 | |
| 832 fvisibility-inlines-hidden | |
| 833 C++ ObjC++ | |
| 834 Marks all inlined methods as having hidden visibility | |
| 835 | |
| 836 fvisibility-ms-compat | |
| 837 C++ ObjC++ Var(flag_visibility_ms_compat) | |
| 838 Changes visibility to match Microsoft Visual Studio by default | |
| 839 | |
| 840 fvtable-gc | |
| 841 C++ ObjC++ | |
| 842 Discard unused virtual functions | |
| 843 | |
| 844 fvtable-thunks | |
| 845 C++ ObjC++ | |
| 846 Implement vtables using thunks | |
| 847 | |
| 848 fweak | |
| 849 C++ ObjC++ | |
| 850 Emit common-like symbols as weak symbols | |
| 851 | |
| 852 fwide-exec-charset= | |
| 853 C ObjC C++ ObjC++ Joined RejectNegative | |
| 854 -fwide-exec-charset=<cset> Convert all wide strings and character constants to character set <cset> | |
| 855 | |
| 856 fworking-directory | |
| 857 C ObjC C++ ObjC++ | |
| 858 Generate a #line directive pointing at the current working directory | |
| 859 | |
| 860 fxref | |
| 861 C++ ObjC++ | |
| 862 Emit cross referencing information | |
| 863 | |
| 864 fzero-link | |
| 865 ObjC ObjC++ | |
| 866 Generate lazy class lookup (via objc_getClass()) for use in Zero-Link mode | |
| 867 | |
| 868 gen-decls | |
| 869 ObjC ObjC++ | |
| 870 Dump declarations to a .decl file | |
| 871 | |
| 872 femit-struct-debug-baseonly | |
| 873 C ObjC C++ ObjC++ | |
| 874 -femit-struct-debug-baseonly Aggressive reduced debug info for structs | |
| 875 | |
| 876 femit-struct-debug-reduced | |
| 877 C ObjC C++ ObjC++ | |
| 878 -femit-struct-debug-reduced Conservative reduced debug info for structs | |
| 879 | |
| 880 femit-struct-debug-detailed= | |
| 881 C ObjC C++ ObjC++ Joined | |
| 882 -femit-struct-debug-detailed=<spec-list> Detailed reduced debug info for structs | |
| 883 | |
| 884 idirafter | |
| 885 C ObjC C++ ObjC++ Joined Separate | |
| 886 -idirafter <dir> Add <dir> to the end of the system include path | |
| 887 | |
| 888 imacros | |
| 889 C ObjC C++ ObjC++ Joined Separate | |
| 890 -imacros <file> Accept definition of macros in <file> | |
| 891 | |
| 892 imultilib | |
| 893 C ObjC C++ ObjC++ Joined Separate | |
|
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894 -imultilib <dir> Set <dir> to be the multilib include subdirectory |
| 0 | 895 |
| 896 include | |
| 897 C ObjC C++ ObjC++ Joined Separate | |
| 898 -include <file> Include the contents of <file> before other files | |
| 899 | |
| 900 iprefix | |
| 901 C ObjC C++ ObjC++ Joined Separate | |
| 902 -iprefix <path> Specify <path> as a prefix for next two options | |
| 903 | |
| 904 isysroot | |
| 905 C ObjC C++ ObjC++ Joined Separate | |
| 906 -isysroot <dir> Set <dir> to be the system root directory | |
| 907 | |
| 908 isystem | |
| 909 C ObjC C++ ObjC++ Joined Separate | |
| 910 -isystem <dir> Add <dir> to the start of the system include path | |
| 911 | |
| 912 iquote | |
| 913 C ObjC C++ ObjC++ Joined Separate | |
| 914 -iquote <dir> Add <dir> to the end of the quote include path | |
| 915 | |
| 916 iwithprefix | |
| 917 C ObjC C++ ObjC++ Joined Separate | |
| 918 -iwithprefix <dir> Add <dir> to the end of the system include path | |
| 919 | |
| 920 iwithprefixbefore | |
| 921 C ObjC C++ ObjC++ Joined Separate | |
| 922 -iwithprefixbefore <dir> Add <dir> to the end of the main include path | |
| 923 | |
| 924 lang-asm | |
| 925 C Undocumented | |
| 926 | |
| 927 lang-objc | |
| 928 C ObjC C++ ObjC++ Undocumented | |
| 929 | |
| 930 nostdinc | |
| 931 C ObjC C++ ObjC++ | |
| 932 Do not search standard system include directories (those specified with -isystem will still be used) | |
| 933 | |
| 934 nostdinc++ | |
| 935 C++ ObjC++ | |
| 936 Do not search standard system include directories for C++ | |
| 937 | |
| 938 o | |
| 939 C ObjC C++ ObjC++ Joined Separate | |
| 940 ; Documented in common.opt | |
| 941 | |
| 942 pedantic | |
| 943 C ObjC C++ ObjC++ | |
| 944 ; Documented in common.opt | |
| 945 | |
| 946 pedantic-errors | |
| 947 C ObjC C++ ObjC++ | |
| 948 ; Documented in common.opt | |
| 949 | |
| 950 print-objc-runtime-info | |
| 951 ObjC ObjC++ | |
| 952 Generate C header of platform-specific features | |
| 953 | |
| 954 print-pch-checksum | |
| 955 C ObjC C++ ObjC++ | |
| 956 Print a checksum of the executable for PCH validity checking, and stop | |
| 957 | |
| 958 remap | |
| 959 C ObjC C++ ObjC++ | |
| 960 Remap file names when including files | |
| 961 | |
| 962 std=c++98 | |
| 963 C++ ObjC++ | |
| 964 Conform to the ISO 1998 C++ standard | |
| 965 | |
| 966 std=c++0x | |
| 967 C++ ObjC++ | |
| 968 Conform to the ISO 1998 C++ standard, with extensions that are likely to | |
| 969 become a part of the upcoming ISO C++ standard, dubbed C++0x. Note that the | |
| 970 extensions enabled by this mode are experimental and may be removed in | |
| 971 future releases of GCC. | |
| 972 | |
|
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973 std=c1x |
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974 C ObjC |
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975 Conform to the ISO 201X C standard draft (experimental and incomplete support) |
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976 |
| 0 | 977 std=c89 |
| 978 C ObjC | |
| 979 Conform to the ISO 1990 C standard | |
| 980 | |
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981 std=c90 |
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982 C ObjC |
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983 Conform to the ISO 1990 C standard |
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984 |
| 0 | 985 std=c99 |
| 986 C ObjC | |
| 987 Conform to the ISO 1999 C standard | |
| 988 | |
| 989 std=c9x | |
| 990 C ObjC | |
| 991 Deprecated in favor of -std=c99 | |
| 992 | |
| 993 std=gnu++98 | |
| 994 C++ ObjC++ | |
| 995 Conform to the ISO 1998 C++ standard with GNU extensions | |
| 996 | |
| 997 std=gnu++0x | |
| 998 C++ ObjC++ | |
| 999 Conform to the ISO 1998 C++ standard, with GNU extensions and | |
| 1000 extensions that are likely to become a part of the upcoming ISO C++ | |
| 1001 standard, dubbed C++0x. Note that the extensions enabled by this mode | |
| 1002 are experimental and may be removed in future releases of GCC. | |
| 1003 | |
|
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1004 std=gnu1x |
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1005 C ObjC |
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1006 Conform to the ISO 201X C standard draft with GNU extensions (experimental and incomplete support) |
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1007 |
| 0 | 1008 std=gnu89 |
| 1009 C ObjC | |
| 1010 Conform to the ISO 1990 C standard with GNU extensions | |
| 1011 | |
|
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1012 std=gnu90 |
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1013 C ObjC |
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1014 Conform to the ISO 1990 C standard with GNU extensions |
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1015 |
| 0 | 1016 std=gnu99 |
| 1017 C ObjC | |
| 1018 Conform to the ISO 1999 C standard with GNU extensions | |
| 1019 | |
| 1020 std=gnu9x | |
| 1021 C ObjC | |
| 1022 Deprecated in favor of -std=gnu99 | |
| 1023 | |
| 1024 std=iso9899:1990 | |
| 1025 C ObjC | |
| 1026 Conform to the ISO 1990 C standard | |
| 1027 | |
| 1028 std=iso9899:199409 | |
| 1029 C ObjC | |
| 1030 Conform to the ISO 1990 C standard as amended in 1994 | |
| 1031 | |
| 1032 std=iso9899:1999 | |
| 1033 C ObjC | |
| 1034 Conform to the ISO 1999 C standard | |
| 1035 | |
| 1036 std=iso9899:199x | |
| 1037 C ObjC | |
| 1038 Deprecated in favor of -std=iso9899:1999 | |
| 1039 | |
| 1040 traditional-cpp | |
| 1041 C ObjC C++ ObjC++ | |
| 1042 Enable traditional preprocessing | |
| 1043 | |
| 1044 trigraphs | |
| 1045 C ObjC C++ ObjC++ | |
| 1046 -trigraphs Support ISO C trigraphs | |
| 1047 | |
| 1048 undef | |
| 1049 C ObjC C++ ObjC++ | |
| 1050 Do not predefine system-specific and GCC-specific macros | |
| 1051 | |
| 1052 v | |
| 1053 Common C ObjC C++ ObjC++ | |
| 1054 Enable verbose output | |
| 1055 | |
| 1056 w | |
| 1057 C ObjC C++ ObjC++ | |
| 1058 ; Documented in common.opt | |
| 1059 | |
| 1060 ; This comment is to ensure we retain the blank line above. |