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Commit | Line | Data |
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fef3106c | 1 | ; Options for the C, ObjC, C++ and ObjC++ front ends. |
c75c517d | 2 | ; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
66647d44 | 3 | ; Free Software Foundation, Inc. |
fef3106c NB |
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 | |
9dcd6f09 | 9 | ; Software Foundation; either version 3, or (at your option) any later |
fef3106c | 10 | ; version. |
c22cacf3 | 11 | ; |
fef3106c NB |
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. | |
c22cacf3 | 16 | ; |
fef3106c | 17 | ; You should have received a copy of the GNU General Public License |
9dcd6f09 NC |
18 | ; along with GCC; see the file COPYING3. If not see |
19 | ; <http://www.gnu.org/licenses/>. | |
fef3106c | 20 | |
8abb6b22 | 21 | ; See the GCC internals manual for a description of this file's format. |
fef3106c | 22 | |
fef3106c NB |
23 | ; Please try to keep this file in ASCII collating order. |
24 | ||
be43ab4e NB |
25 | Language |
26 | C | |
27 | ||
28 | Language | |
29 | ObjC | |
30 | ||
31 | Language | |
32 | C++ | |
33 | ||
34 | Language | |
35 | ObjC++ | |
36 | ||
fef3106c NB |
37 | -output-pch= |
38 | C ObjC C++ ObjC++ Joined Separate | |
39 | ||
40 | A | |
61ff2bdc | 41 | C ObjC C++ ObjC++ Joined Separate MissingArgError(assertion missing after %qs) |
72de27ea | 42 | -A<question>=<answer> Assert the <answer> to <question>. Putting '-' before <question> disables the <answer> to <question> |
fef3106c NB |
43 | |
44 | C | |
45 | C ObjC C++ ObjC++ | |
72de27ea | 46 | Do not discard comments |
fef3106c NB |
47 | |
48 | CC | |
49 | C ObjC C++ ObjC++ | |
72de27ea | 50 | Do not discard comments in macro expansions |
fef3106c NB |
51 | |
52 | D | |
61ff2bdc | 53 | C ObjC C++ ObjC++ Joined Separate MissingArgError(macro name missing after %qs) |
72de27ea | 54 | -D<macro>[=<val>] Define a <macro> with <val> as its value. If just <macro> is given, <val> is taken to be 1 |
fef3106c NB |
55 | |
56 | E | |
5498f011 | 57 | C ObjC C++ ObjC++ Undocumented Var(flag_preprocess_only) |
fef3106c | 58 | |
94d1613b | 59 | F |
61ff2bdc | 60 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
4e994432 | 61 | -F <dir> Add <dir> to the end of the main framework include path |
94d1613b | 62 | |
fef3106c NB |
63 | H |
64 | C ObjC C++ ObjC++ | |
72de27ea | 65 | Print the name of header files as they are used |
fef3106c NB |
66 | |
67 | I | |
61ff2bdc | 68 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
4bed3787 | 69 | -I <dir> Add <dir> to the end of the main include path |
fef3106c NB |
70 | |
71 | M | |
72 | C ObjC C++ ObjC++ | |
72de27ea | 73 | Generate make dependencies |
fef3106c | 74 | |
c878765b JM |
75 | MD |
76 | C ObjC C++ ObjC++ NoDriverArg Separate MissingArgError(missing filename after %qs) | |
77 | Generate make dependencies and compile | |
fef3106c NB |
78 | |
79 | MF | |
61ff2bdc | 80 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
72de27ea | 81 | -MF <file> Write dependency output to the given file |
fef3106c NB |
82 | |
83 | MG | |
84 | C ObjC C++ ObjC++ | |
72de27ea | 85 | Treat missing header files as generated files |
fef3106c NB |
86 | |
87 | MM | |
88 | C ObjC C++ ObjC++ | |
72de27ea | 89 | Like -M but ignore system header files |
fef3106c | 90 | |
c878765b JM |
91 | MMD |
92 | C ObjC C++ ObjC++ NoDriverArg Separate MissingArgError(missing filename after %qs) | |
93 | Like -MD but ignore system header files | |
fef3106c NB |
94 | |
95 | MP | |
96 | C ObjC C++ ObjC++ | |
72de27ea | 97 | Generate phony targets for all headers |
fef3106c NB |
98 | |
99 | MQ | |
61ff2bdc | 100 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing makefile target after %qs) |
72de27ea | 101 | -MQ <target> Add a MAKE-quoted target |
fef3106c NB |
102 | |
103 | MT | |
61ff2bdc | 104 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing makefile target after %qs) |
72de27ea | 105 | -MT <target> Add an unquoted target |
fef3106c NB |
106 | |
107 | P | |
108 | C ObjC C++ ObjC++ | |
72de27ea | 109 | Do not generate #line directives |
fef3106c NB |
110 | |
111 | U | |
61ff2bdc | 112 | C ObjC C++ ObjC++ Joined Separate MissingArgError(macro name missing after %qs) |
72de27ea | 113 | -U<macro> Undefine <macro> |
fef3106c NB |
114 | |
115 | Wabi | |
d7f09764 | 116 | C ObjC C++ ObjC++ LTO Var(warn_abi) Warning |
7619c085 | 117 | Warn about things that will change when compiling with an ABI-compliant compiler |
fef3106c | 118 | |
bce08d50 | 119 | Wpsabi |
d7f09764 | 120 | C ObjC C++ ObjC++ LTO Var(warn_psabi) Init(1) Undocumented |
bce08d50 | 121 | |
c116cd05 MLI |
122 | Waddress |
123 | C ObjC C++ ObjC++ Var(warn_address) Warning | |
124 | Warn about suspicious uses of memory addresses | |
125 | ||
fef3106c | 126 | Wall |
c662432e | 127 | C ObjC C++ ObjC++ Warning |
5a170a05 | 128 | Enable most warning messages |
fef3106c | 129 | |
6e955430 | 130 | Wassign-intercept |
c662432e | 131 | ObjC ObjC++ Var(warn_assign_intercept) Warning |
6e955430 ZL |
132 | Warn whenever an Objective-C assignment is being intercepted by the garbage collector |
133 | ||
fef3106c | 134 | Wbad-function-cast |
c662432e | 135 | C ObjC Var(warn_bad_function_cast) Warning |
5a170a05 | 136 | Warn about casting functions to incompatible types |
fef3106c | 137 | |
c047ce93 SB |
138 | Wbuiltin-macro-redefined |
139 | C ObjC C++ ObjC++ Warning | |
140 | Warn when a built-in preprocessor macro is undefined or redefined | |
141 | ||
b7e20b53 | 142 | Wc++-compat |
2cbac420 | 143 | C ObjC Var(warn_cxx_compat) Warning |
b7e20b53 GDR |
144 | Warn about C constructs that are not in the common subset of C and C++ |
145 | ||
e1f1ee86 | 146 | Wc++0x-compat |
21af5cdf | 147 | C++ ObjC++ Var(warn_cxx0x_compat) Warning |
e1f1ee86 | 148 | Warn about C++ constructs whose meaning differs between ISO C++ 1998 and ISO C++ 200x |
b7e20b53 | 149 | |
fef3106c | 150 | Wcast-qual |
c662432e | 151 | C ObjC C++ ObjC++ Var(warn_cast_qual) Warning |
5a170a05 | 152 | Warn about casts which discard qualifiers |
fef3106c NB |
153 | |
154 | Wchar-subscripts | |
c662432e | 155 | C ObjC C++ ObjC++ Var(warn_char_subscripts) Warning |
5a170a05 | 156 | Warn about subscripts whose type is \"char\" |
fef3106c | 157 | |
2b001724 | 158 | Wclobbered |
c662432e | 159 | C ObjC C++ ObjC++ Var(warn_clobbered) Init(-1) Warning |
2b001724 MLI |
160 | Warn about variables that might be changed by \"longjmp\" or \"vfork\" |
161 | ||
fef3106c | 162 | Wcomment |
c662432e | 163 | C ObjC C++ ObjC++ Warning |
72de27ea | 164 | Warn about possibly nested block comments, and C++ comments spanning more than one physical line |
fef3106c NB |
165 | |
166 | Wcomments | |
5de8299c | 167 | C ObjC C++ ObjC++ Warning Alias(Wcomment) |
72de27ea | 168 | Synonym for -Wcomment |
fef3106c NB |
169 | |
170 | Wconversion | |
c662432e | 171 | C ObjC C++ ObjC++ Var(warn_conversion) Warning |
05170031 | 172 | Warn for implicit type conversions that may change a value |
fef3106c | 173 | |
17251338 MLI |
174 | Wconversion-null |
175 | C++ ObjC++ Var(warn_conversion_null) Init(1) Warning | |
176 | Warn for converting NULL from/to a non-pointer type | |
177 | ||
7060db96 MLI |
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 | ||
fef3106c | 182 | Wctor-dtor-privacy |
c662432e | 183 | C++ ObjC++ Var(warn_ctor_dtor_privacy) Warning |
bae92bf3 | 184 | Warn when all constructors and destructors are private |
fef3106c | 185 | |
85617eba | 186 | Wdeclaration-after-statement |
c662432e | 187 | C ObjC Var(warn_declaration_after_statement) Warning |
85617eba HPN |
188 | Warn when a declaration is found after a statement |
189 | ||
fef3106c | 190 | Wdeprecated |
899015a0 | 191 | C C++ ObjC ObjC++ Var(warn_deprecated) Init(1) Warning |
9a0f3e86 | 192 | Warn if a deprecated compiler feature, class, method, or field is used |
fef3106c NB |
193 | |
194 | Wdiv-by-zero | |
2cbac420 | 195 | C ObjC C++ ObjC++ Var(warn_div_by_zero) Init(1) Warning |
5a170a05 | 196 | Warn about compile-time integer division by zero |
fef3106c NB |
197 | |
198 | Weffc++ | |
c662432e | 199 | C++ ObjC++ Var(warn_ecpp) Warning |
bae92bf3 | 200 | Warn about violations of Effective C++ style rules |
fef3106c | 201 | |
b3b433c5 | 202 | Wempty-body |
c662432e | 203 | C ObjC C++ ObjC++ Var(warn_empty_body) Init(-1) Warning |
b3b433c5 MLI |
204 | Warn about an empty body in an if or else statement |
205 | ||
fef3106c | 206 | Wendif-labels |
c662432e | 207 | C ObjC C++ ObjC++ Warning |
72de27ea | 208 | Warn about stray tokens after #elif and #endif |
fef3106c | 209 | |
a3299096 | 210 | Wenum-compare |
6866c6e8 | 211 | C ObjC C++ ObjC++ Var(warn_enum_compare) Init(-1) Warning |
a3299096 MM |
212 | Warn about comparison of different enum types |
213 | ||
fef3106c NB |
214 | Werror |
215 | C ObjC C++ ObjC++ | |
72de27ea | 216 | ; Documented in common.opt |
fef3106c NB |
217 | |
218 | Werror-implicit-function-declaration | |
5de8299c | 219 | C ObjC RejectNegative Warning Alias(Werror=, implicit-function-declaration) |
dc90f45b | 220 | This switch is deprecated; use -Werror=implicit-function-declaration instead |
fef3106c NB |
221 | |
222 | Wfloat-equal | |
c662432e | 223 | C ObjC C++ ObjC++ Var(warn_float_equal) Warning |
5a170a05 | 224 | Warn if testing floating point numbers for equality |
fef3106c NB |
225 | |
226 | Wformat | |
c662432e | 227 | C ObjC C++ ObjC++ Warning |
5a170a05 | 228 | Warn about printf/scanf/strftime/strfmon format string anomalies |
fef3106c NB |
229 | |
230 | Wformat-extra-args | |
c662432e | 231 | C ObjC C++ ObjC++ Var(warn_format_extra_args) Warning |
5a170a05 | 232 | Warn if passing too many arguments to a function for its format string |
fef3106c NB |
233 | |
234 | Wformat-nonliteral | |
c662432e | 235 | C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning |
5a170a05 | 236 | Warn about format strings that are not literals |
fef3106c | 237 | |
ca178f85 | 238 | Wformat-contains-nul |
6d16b6e7 | 239 | C ObjC C++ ObjC++ Var(warn_format_contains_nul) Warning |
ca178f85 BK |
240 | Warn about format strings that contain NUL bytes |
241 | ||
fef3106c | 242 | Wformat-security |
c662432e | 243 | C ObjC C++ ObjC++ Var(warn_format_security) Warning |
5a170a05 | 244 | Warn about possible security problems with format functions |
fef3106c NB |
245 | |
246 | Wformat-y2k | |
c662432e | 247 | C ObjC C++ ObjC++ Var(warn_format_y2k) Warning |
5a170a05 | 248 | Warn about strftime formats yielding 2-digit years |
fef3106c NB |
249 | |
250 | Wformat-zero-length | |
c662432e | 251 | C ObjC Var(warn_format_zero_length) Warning |
7619c085 | 252 | Warn about zero-length formats |
fef3106c NB |
253 | |
254 | Wformat= | |
c662432e | 255 | C ObjC C++ ObjC++ Joined Warning |
fef3106c | 256 | |
5db2e9ca DK |
257 | Wignored-qualifiers |
258 | C C++ Var(warn_ignored_qualifiers) Init(-1) Warning | |
259 | Warn whenever type qualifiers are ignored. | |
260 | ||
3390f9c9 | 261 | Winit-self |
c662432e | 262 | C ObjC C++ ObjC++ Var(warn_init_self) Warning |
ab532386 | 263 | Warn about variables which are initialized to themselves |
3390f9c9 | 264 | |
fef3106c | 265 | Wimplicit |
3734d960 MLI |
266 | C ObjC Var(warn_implicit) Init(-1) Warning |
267 | Warn about implicit declarations | |
fef3106c | 268 | |
0a0b3574 MM |
269 | Wdouble-promotion |
270 | C ObjC C++ ObjC++ Var(warn_double_promotion) Warning | |
271 | Warn about implicit conversions from \"float\" to \"double\" | |
272 | ||
fef3106c | 273 | Wimplicit-function-declaration |
dc90f45b | 274 | C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning |
5a170a05 | 275 | Warn about implicit function declarations |
fef3106c NB |
276 | |
277 | Wimplicit-int | |
3734d960 | 278 | C ObjC Var(warn_implicit_int) Init(-1) Warning |
5a170a05 | 279 | Warn when a declaration does not specify a type |
fef3106c NB |
280 | |
281 | Wimport | |
2d2bd949 | 282 | C ObjC C++ ObjC++ Undocumented Ignore |
fef3106c | 283 | |
53a2494e | 284 | Wint-to-pointer-cast |
dc8d2739 | 285 | C ObjC C++ ObjC++ Var(warn_int_to_pointer_cast) Init(1) Warning |
53a2494e JM |
286 | Warn when there is a cast to a pointer from an integer of a different size |
287 | ||
fef3106c | 288 | Winvalid-offsetof |
c662432e | 289 | C++ ObjC++ Var(warn_invalid_offsetof) Init(1) Warning |
bae92bf3 | 290 | Warn about invalid uses of the \"offsetof\" macro |
fef3106c NB |
291 | |
292 | Winvalid-pch | |
c662432e | 293 | C ObjC C++ ObjC++ Warning |
5a170a05 | 294 | Warn about PCH files that are found but not used |
fef3106c | 295 | |
e1b7793c | 296 | Wjump-misses-init |
da667743 | 297 | C ObjC Var(warn_jump_misses_init) Init(-1) Warning |
e1b7793c ILT |
298 | Warn when a jump misses a variable initialization |
299 | ||
ca409efd | 300 | Wlogical-op |
7bb27074 | 301 | C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning |
ca409efd MLI |
302 | Warn when a logical operator is suspiciously always evaluating to true or false |
303 | ||
fef3106c | 304 | Wlong-long |
9c650d90 | 305 | C ObjC C++ ObjC++ Var(warn_long_long) Init(-1) Warning |
5a170a05 | 306 | Do not warn about using \"long long\" when -pedantic |
fef3106c NB |
307 | |
308 | Wmain | |
4003301d | 309 | C ObjC C++ ObjC++ Var(warn_main) Init(-1) Warning |
5a170a05 | 310 | Warn about suspicious declarations of \"main\" |
fef3106c NB |
311 | |
312 | Wmissing-braces | |
c662432e | 313 | C ObjC C++ ObjC++ Var(warn_missing_braces) Warning |
5a170a05 | 314 | Warn about possibly missing braces around initializers |
fef3106c NB |
315 | |
316 | Wmissing-declarations | |
c662432e | 317 | C ObjC C++ ObjC++ Var(warn_missing_declarations) Warning |
5a170a05 | 318 | Warn about global functions without previous declarations |
fef3106c | 319 | |
eaac4679 | 320 | Wmissing-field-initializers |
c662432e | 321 | C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1) Warning |
eaac4679 RS |
322 | Warn about missing fields in struct initializers |
323 | ||
fef3106c | 324 | Wmissing-format-attribute |
c662432e | 325 | C ObjC C++ ObjC++ Var(warn_missing_format_attribute) Warning |
5a170a05 | 326 | Warn about functions which might be candidates for format attributes |
fef3106c | 327 | |
b02398bd | 328 | Wmissing-include-dirs |
c662432e | 329 | C ObjC C++ ObjC++ Warning |
b02398bd BE |
330 | Warn about user-specified include directories that do not exist |
331 | ||
cb4af25a | 332 | Wmissing-parameter-type |
c662432e | 333 | C ObjC Var(warn_missing_parameter_type) Init(-1) Warning |
cb4af25a MLI |
334 | Warn about function parameters declared without a type specifier in K&R-style functions |
335 | ||
fef3106c | 336 | Wmissing-prototypes |
c662432e | 337 | C ObjC Var(warn_missing_prototypes) Warning |
5a170a05 | 338 | Warn about global functions without prototypes |
fef3106c NB |
339 | |
340 | Wmultichar | |
c662432e | 341 | C ObjC C++ ObjC++ Warning |
5a170a05 | 342 | Warn about use of multi-character character constants |
fef3106c NB |
343 | |
344 | Wnested-externs | |
c662432e | 345 | C ObjC Var(warn_nested_externs) Warning |
5a170a05 | 346 | Warn about \"extern\" declarations not at file scope |
fef3106c | 347 | |
59f9c2ed JM |
348 | Wnoexcept |
349 | C++ ObjC++ Var(warn_noexcept) Warning | |
3c820dcd | 350 | Warn when a noexcept expression evaluates to false even though the expression can't actually throw |
59f9c2ed | 351 | |
fef3106c | 352 | Wnon-template-friend |
c662432e | 353 | C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warning |
bae92bf3 | 354 | Warn when non-templatized friend functions are declared within a template |
fef3106c NB |
355 | |
356 | Wnon-virtual-dtor | |
c662432e | 357 | C++ ObjC++ Var(warn_nonvdtor) Warning |
bae92bf3 | 358 | Warn about non-virtual destructors |
fef3106c NB |
359 | |
360 | Wnonnull | |
c662432e | 361 | C ObjC Var(warn_nonnull) Warning |
7619c085 | 362 | Warn about NULL being passed to argument slots marked as requiring non-NULL |
fef3106c | 363 | |
50668cf6 | 364 | Wnormalized= |
c662432e | 365 | C ObjC C++ ObjC++ Joined Warning |
50668cf6 GK |
366 | -Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings |
367 | ||
fef3106c | 368 | Wold-style-cast |
c662432e | 369 | C++ ObjC++ Var(warn_old_style_cast) Warning |
bae92bf3 | 370 | Warn if a C-style cast is used in a program |
fef3106c | 371 | |
b1ed4cb4 | 372 | Wold-style-declaration |
c662432e | 373 | C ObjC Var(warn_old_style_declaration) Init(-1) Warning |
b1ed4cb4 MLI |
374 | Warn for obsolescent usage in a declaration |
375 | ||
c034f121 | 376 | Wold-style-definition |
c662432e | 377 | C ObjC Var(warn_old_style_definition) Warning |
c034f121 AJ |
378 | Warn if an old-style parameter definition is used |
379 | ||
89a42ac8 | 380 | Woverlength-strings |
c662432e | 381 | C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1) Warning |
89a42ac8 ZW |
382 | Warn if a string is longer than the maximum portable length specified by the standard |
383 | ||
fef3106c | 384 | Woverloaded-virtual |
c662432e | 385 | C++ ObjC++ Var(warn_overloaded_virtual) Warning |
bae92bf3 | 386 | Warn about overloaded virtual function names |
fef3106c | 387 | |
7ed322d7 | 388 | Woverride-init |
c662432e | 389 | C ObjC Var(warn_override_init) Init(-1) Warning |
7ed322d7 JM |
390 | Warn about overriding initializers without side effects |
391 | ||
2cd36c22 | 392 | Wpacked-bitfield-compat |
bee6fa6d | 393 | C ObjC C++ ObjC++ Var(warn_packed_bitfield_compat) Init(-1) Warning |
2cd36c22 AN |
394 | Warn about packed bit-fields whose offset changed in GCC 4.4 |
395 | ||
fef3106c | 396 | Wparentheses |
c662432e | 397 | C ObjC C++ ObjC++ Var(warn_parentheses) Warning |
5a170a05 | 398 | Warn about possibly missing parentheses |
fef3106c NB |
399 | |
400 | Wpmf-conversions | |
c662432e | 401 | C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning |
bae92bf3 | 402 | Warn when converting the type of pointers to member functions |
fef3106c NB |
403 | |
404 | Wpointer-arith | |
c662432e | 405 | C ObjC C++ ObjC++ Var(warn_pointer_arith) Warning |
5a170a05 | 406 | Warn about function pointer arithmetic |
fef3106c | 407 | |
53a2494e | 408 | Wpointer-to-int-cast |
c662432e | 409 | C ObjC Var(warn_pointer_to_int_cast) Init(1) Warning |
53a2494e JM |
410 | Warn when a pointer is cast to an integer of a different size |
411 | ||
b9b8dde3 | 412 | Wpragmas |
c662432e | 413 | C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) Warning |
b9b8dde3 DD |
414 | Warn about misuses of pragmas |
415 | ||
fef3106c | 416 | Wprotocol |
c662432e | 417 | ObjC ObjC++ Var(warn_protocol) Init(1) Warning |
f2ac9964 | 418 | Warn if inherited methods are unimplemented |
fef3106c NB |
419 | |
420 | Wredundant-decls | |
c662432e | 421 | C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning |
5a170a05 | 422 | Warn about multiple declarations of the same object |
fef3106c NB |
423 | |
424 | Wreorder | |
c662432e | 425 | C++ ObjC++ Var(warn_reorder) Warning |
bae92bf3 | 426 | Warn when the compiler reorders code |
fef3106c NB |
427 | |
428 | Wreturn-type | |
c662432e | 429 | C ObjC C++ ObjC++ Var(warn_return_type) Warning |
bae92bf3 | 430 | Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++) |
fef3106c NB |
431 | |
432 | Wselector | |
c662432e | 433 | ObjC ObjC++ Var(warn_selector) Warning |
f2ac9964 | 434 | Warn if a selector has multiple methods |
fef3106c NB |
435 | |
436 | Wsequence-point | |
c662432e | 437 | C ObjC C++ ObjC++ Var(warn_sequence_point) Warning |
5a170a05 | 438 | Warn about possible violations of sequence point rules |
fef3106c NB |
439 | |
440 | Wsign-compare | |
c662432e | 441 | C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1) Warning |
5a170a05 | 442 | Warn about signed-unsigned comparisons |
fef3106c NB |
443 | |
444 | Wsign-promo | |
c662432e | 445 | C++ ObjC++ Var(warn_sign_promo) Warning |
bae92bf3 | 446 | Warn when overload promotes from unsigned to signed |
fef3106c | 447 | |
b2f97e4a | 448 | Wstrict-null-sentinel |
5498f011 | 449 | C++ ObjC++ Warning Var(warn_strict_null_sentinel) |
b2f97e4a MM |
450 | Warn about uncasted NULL used as sentinel |
451 | ||
fef3106c | 452 | Wstrict-prototypes |
c662432e | 453 | C ObjC Var(warn_strict_prototypes) Warning |
5a170a05 | 454 | Warn about unprototyped function declarations |
fef3106c | 455 | |
6e955430 | 456 | Wstrict-selector-match |
c662432e | 457 | ObjC ObjC++ Var(warn_strict_selector_match) Warning |
6e955430 ZL |
458 | Warn if type signatures of candidate methods do not match exactly |
459 | ||
23462d4d UB |
460 | Wsync-nand |
461 | C C++ Var(warn_sync_nand) Init(1) Warning | |
462 | Warn when __sync_fetch_and_nand and __sync_nand_and_fetch built-in functions are used | |
463 | ||
fef3106c | 464 | Wsynth |
c662432e | 465 | C++ ObjC++ Var(warn_synth) Warning |
802e3f8c | 466 | Deprecated. This switch has no effect |
fef3106c NB |
467 | |
468 | Wsystem-headers | |
c662432e | 469 | C ObjC C++ ObjC++ Warning |
9a0f3e86 | 470 | ; Documented in common.opt |
fef3106c NB |
471 | |
472 | Wtraditional | |
c662432e | 473 | C ObjC Var(warn_traditional) Warning |
72de27ea | 474 | Warn about features not present in traditional C |
fef3106c | 475 | |
05170031 | 476 | Wtraditional-conversion |
c662432e | 477 | C ObjC Var(warn_traditional_conversion) Warning |
05170031 MLI |
478 | Warn of prototypes causing type conversions different from what would happen in the absence of prototype |
479 | ||
fef3106c | 480 | Wtrigraphs |
c662432e | 481 | C ObjC C++ ObjC++ Warning |
72de27ea | 482 | Warn if trigraphs are encountered that might affect the meaning of the program |
fef3106c NB |
483 | |
484 | Wundeclared-selector | |
c662432e | 485 | ObjC ObjC++ Var(warn_undeclared_selector) Warning |
7619c085 | 486 | Warn about @selector()s without previously declared methods |
fef3106c NB |
487 | |
488 | Wundef | |
c662432e | 489 | C ObjC C++ ObjC++ Warning |
72de27ea | 490 | Warn if an undefined macro is used in an #if directive |
fef3106c NB |
491 | |
492 | Wunknown-pragmas | |
c662432e | 493 | C ObjC C++ ObjC++ Warning |
5a170a05 | 494 | Warn about unrecognized pragmas |
fef3106c | 495 | |
6ec637a4 JJ |
496 | Wunsuffixed-float-constants |
497 | C ObjC Var(warn_unsuffixed_float_constants) Warning | |
498 | Warn about unsuffixed float constants | |
499 | ||
fef3106c | 500 | Wunused-macros |
c662432e | 501 | C ObjC C++ ObjC++ Warning |
72de27ea | 502 | Warn about macros defined in the main file that are not used |
fef3106c | 503 | |
156f545a MLI |
504 | Wunused-result |
505 | C ObjC C++ ObjC++ Var(warn_unused_result) Init(1) Warning | |
506 | Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value | |
507 | ||
e5b79219 | 508 | Wvariadic-macros |
c662432e | 509 | C ObjC C++ ObjC++ Warning |
e5b79219 RH |
510 | Do not warn about using variadic macros when -pedantic |
511 | ||
50d50fc7 SP |
512 | Wvla |
513 | C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning | |
514 | Warn if a variable length array is used | |
515 | ||
16302daf MLI |
516 | Wvolatile-register-var |
517 | C ObjC C++ ObjC++ Var(warn_volatile_register_var) Warning | |
518 | Warn when a register variable is declared volatile | |
519 | ||
fef3106c | 520 | Wwrite-strings |
c662432e | 521 | C ObjC C++ ObjC++ Var(warn_write_strings) Warning |
d539b114 | 522 | 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. |
fef3106c | 523 | |
f2fd3821 | 524 | Wpointer-sign |
c662432e | 525 | C ObjC Var(warn_pointer_sign) Init(-1) Warning |
c85ce869 | 526 | Warn when a pointer differs in signedness in an assignment |
f2fd3821 | 527 | |
fef3106c NB |
528 | ansi |
529 | C ObjC C++ ObjC++ | |
c85ce869 | 530 | A synonym for -std=c89 (for C) or -std=c++98 (for C++) |
fef3106c NB |
531 | |
532 | d | |
533 | C ObjC C++ ObjC++ Joined | |
72de27ea | 534 | ; Documented in common.opt. FIXME - what about -dI, -dD, -dN and -dD? |
fef3106c | 535 | |
fef3106c | 536 | faccess-control |
5498f011 | 537 | C++ ObjC++ Var(flag_access_control) Init(1) |
bae92bf3 | 538 | Enforce class member access control semantics |
fef3106c NB |
539 | |
540 | fall-virtual | |
2d2bd949 | 541 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
542 | |
543 | falt-external-templates | |
2d2bd949 | 544 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 545 | No longer supported |
fef3106c NB |
546 | |
547 | fasm | |
5498f011 | 548 | C ObjC C++ ObjC++ Var(flag_no_asm, 0) |
5a170a05 | 549 | Recognize the \"asm\" keyword |
fef3106c NB |
550 | |
551 | fbuiltin | |
5498f011 | 552 | C ObjC C++ ObjC++ Var(flag_no_builtin, 0) |
5a170a05 | 553 | Recognize built-in functions |
fef3106c NB |
554 | |
555 | fbuiltin- | |
556 | C ObjC C++ ObjC++ Joined | |
557 | ||
558 | fcheck-new | |
5498f011 | 559 | C++ ObjC++ Var(flag_check_new) |
bae92bf3 | 560 | Check the return value of new |
fef3106c NB |
561 | |
562 | fcond-mismatch | |
563 | C ObjC C++ ObjC++ | |
5a170a05 | 564 | Allow the arguments of the '?' operator to have different types |
fef3106c NB |
565 | |
566 | fconserve-space | |
5498f011 | 567 | C++ ObjC++ Var(flag_conserve_space) |
bae92bf3 | 568 | Reduce the size of object files |
fef3106c | 569 | |
fef3106c | 570 | fconstant-string-class= |
61ff2bdc | 571 | ObjC ObjC++ Joined MissingArgError(no class name specified with %qs) |
f2ac9964 | 572 | -fconst-string-class=<name> Use class <name> for constant strings |
fef3106c | 573 | |
5f5babf1 JM |
574 | fdeduce-init-list |
575 | C++ ObjC++ Var(flag_deduce_init_list) Init(1) | |
576 | -fno-deduce-init-list disable deduction of std::initializer_list for a template type parameter from a brace-enclosed initializer-list | |
577 | ||
fef3106c | 578 | fdefault-inline |
2d2bd949 | 579 | C++ ObjC++ Ignore |
5498f011 | 580 | Does nothing. Preserved for backward compatibility. |
fef3106c | 581 | |
ccfc4c91 OW |
582 | fdirectives-only |
583 | C ObjC C++ ObjC++ | |
584 | Preprocess directives only. | |
585 | ||
fef3106c NB |
586 | fdollars-in-identifiers |
587 | C ObjC C++ ObjC++ | |
72de27ea | 588 | Permit '$' as an identifier character |
fef3106c | 589 | |
fef3106c | 590 | felide-constructors |
5498f011 | 591 | C++ ObjC++ Var(flag_elide_constructors) Init(1) |
fef3106c NB |
592 | |
593 | fenforce-eh-specs | |
5498f011 | 594 | C++ ObjC++ Var(flag_enforce_eh_specs) Init(1) |
bae92bf3 | 595 | Generate code to check exception specifications |
fef3106c NB |
596 | |
597 | fenum-int-equiv | |
2d2bd949 | 598 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 599 | |
e6cc3a24 ZW |
600 | fexec-charset= |
601 | C ObjC C++ ObjC++ Joined RejectNegative | |
72de27ea | 602 | -fexec-charset=<cset> Convert all strings and character constants to character set <cset> |
e6cc3a24 | 603 | |
af15a2fe JM |
604 | fextended-identifiers |
605 | C ObjC C++ ObjC++ | |
606 | Permit universal character names (\\u and \\U) in identifiers | |
607 | ||
16dd5cfe EC |
608 | finput-charset= |
609 | C ObjC C++ ObjC++ Joined RejectNegative | |
c85ce869 | 610 | -finput-charset=<cset> Specify the default character set for source files |
16dd5cfe EC |
611 | |
612 | ||
fef3106c | 613 | fexternal-templates |
2d2bd949 | 614 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 615 | |
fef3106c | 616 | ffor-scope |
5498f011 | 617 | C++ ObjC++ Var(flag_new_for_scope) Init(1) |
bae92bf3 | 618 | Scope of for-init-statement variables is local to the loop |
fef3106c NB |
619 | |
620 | ffreestanding | |
820b51ae | 621 | C ObjC C++ ObjC++ |
5a170a05 | 622 | Do not assume that standard C libraries and \"main\" exist |
fef3106c NB |
623 | |
624 | fgnu-keywords | |
5498f011 | 625 | C++ ObjC++ Var(flag_no_gnu_keywords, 0) |
bae92bf3 | 626 | Recognize GNU-defined keywords |
fef3106c NB |
627 | |
628 | fgnu-runtime | |
629 | ObjC ObjC++ | |
f2ac9964 | 630 | Generate code for GNU runtime environment |
fef3106c | 631 | |
da1c7394 | 632 | fgnu89-inline |
2cbac420 | 633 | C ObjC Var(flag_gnu89_inline) Init(-1) |
da1c7394 ILT |
634 | Use traditional GNU semantics for inline functions |
635 | ||
fef3106c | 636 | fguiding-decls |
2d2bd949 | 637 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
638 | |
639 | fhandle-exceptions | |
2d2bd949 | 640 | C++ ObjC++ Optimization Alias(fexceptions) Warn({-fhandle-exceptions has been renamed -fexceptions (and is now on by default)}) |
fef3106c NB |
641 | |
642 | fhonor-std | |
2d2bd949 | 643 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
644 | |
645 | fhosted | |
646 | C ObjC | |
5a170a05 | 647 | Assume normal C execution environment |
fef3106c NB |
648 | |
649 | fhuge-objects | |
2d2bd949 | 650 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 651 | No longer supported |
fef3106c NB |
652 | |
653 | fimplement-inlines | |
5498f011 | 654 | C++ ObjC++ Var(flag_implement_inlines) Init(1) |
bae92bf3 | 655 | Export functions even if they can be inlined |
fef3106c NB |
656 | |
657 | fimplicit-inline-templates | |
5498f011 | 658 | C++ ObjC++ Var(flag_implicit_inline_templates) Init(1) |
bae92bf3 | 659 | Emit implicit instantiations of inline templates |
fef3106c NB |
660 | |
661 | fimplicit-templates | |
5498f011 | 662 | C++ ObjC++ Var(flag_implicit_templates) Init(1) |
bae92bf3 | 663 | Emit implicit instantiations of templates |
fef3106c | 664 | |
d63d5d0c | 665 | ffriend-injection |
2cbac420 | 666 | C++ ObjC++ Var(flag_friend_injection) |
d63d5d0c ILT |
667 | Inject friend functions into enclosing namespace |
668 | ||
fef3106c | 669 | flabels-ok |
2d2bd949 | 670 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 671 | |
00c8e9f6 | 672 | flax-vector-conversions |
5498f011 | 673 | C ObjC C++ ObjC++ Var(flag_lax_vector_conversions) |
00c8e9f6 MS |
674 | Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types. |
675 | ||
fef3106c | 676 | fms-extensions |
5498f011 | 677 | C ObjC C++ ObjC++ Var(flag_ms_extensions) |
bae92bf3 | 678 | Don't warn about uses of Microsoft extensions |
fef3106c NB |
679 | |
680 | fname-mangling-version- | |
2d2bd949 | 681 | C++ ObjC++ Joined Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
682 | |
683 | fnew-abi | |
2d2bd949 | 684 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
685 | |
686 | fnext-runtime | |
687 | ObjC ObjC++ | |
264fa2db ZL |
688 | Generate code for NeXT (Apple Mac OS X) runtime environment |
689 | ||
690 | fnil-receivers | |
5498f011 | 691 | ObjC ObjC++ Var(flag_nil_receivers) Init(1) |
264fa2db | 692 | Assume that receivers of Objective-C messages may be nil |
fef3106c NB |
693 | |
694 | fnonansi-builtins | |
5498f011 | 695 | C++ ObjC++ Var(flag_no_nonansi_builtin, 0) |
fef3106c NB |
696 | |
697 | fnonnull-objects | |
2d2bd949 | 698 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 699 | |
9feb3d6a JM |
700 | fnothrow-opt |
701 | C++ ObjC++ Optimization Var(flag_nothrow_opt) | |
702 | Treat a throw() exception specification as noexcept to improve code size | |
703 | ||
6e955430 ZL |
704 | ; Generate special '- .cxx_construct' and '- .cxx_destruct' methods |
705 | ; to initialize any non-POD ivars in Objective-C++ classes. | |
706 | fobjc-call-cxx-cdtors | |
707 | ObjC++ Var(flag_objc_call_cxx_cdtors) | |
708 | Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed | |
709 | ||
710 | fobjc-direct-dispatch | |
711 | ObjC ObjC++ Var(flag_objc_direct_dispatch) | |
712 | Allow fast jumps to the message dispatcher | |
713 | ||
714 | ; Nonzero means that we will allow new ObjC exception syntax (@throw, | |
715 | ; @try, etc.) in source code. | |
264fa2db | 716 | fobjc-exceptions |
6e955430 | 717 | ObjC ObjC++ Var(flag_objc_exceptions) |
264fa2db ZL |
718 | Enable Objective-C exception and synchronization syntax |
719 | ||
6e955430 ZL |
720 | fobjc-gc |
721 | ObjC ObjC++ Var(flag_objc_gc) | |
722 | Enable garbage collection (GC) in Objective-C/Objective-C++ programs | |
723 | ||
724 | ; Nonzero means that we generate NeXT setjmp based exceptions. | |
093c7153 | 725 | fobjc-sjlj-exceptions |
6e955430 | 726 | ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1) |
093c7153 RH |
727 | Enable Objective-C setjmp exception handling runtime |
728 | ||
953ff289 DN |
729 | fopenmp |
730 | C ObjC C++ ObjC++ Var(flag_openmp) | |
9a0f3e86 | 731 | Enable OpenMP (implies -frecursive in Fortran) |
953ff289 | 732 | |
fef3106c NB |
733 | foperator-names |
734 | C++ ObjC++ | |
1cbc62c0 | 735 | Recognize C++ keywords like \"compl\" and \"xor\" |
fef3106c NB |
736 | |
737 | foptional-diags | |
2d2bd949 | 738 | C++ ObjC++ Ignore |
5498f011 | 739 | Does nothing. Preserved for backward compatibility. |
fef3106c NB |
740 | |
741 | fpch-deps | |
742 | C ObjC C++ ObjC++ | |
743 | ||
c0d578e6 GK |
744 | fpch-preprocess |
745 | C ObjC C++ ObjC++ | |
746 | Look for and use PCH files even when preprocessing | |
747 | ||
fef3106c NB |
748 | fpermissive |
749 | C++ ObjC++ | |
bae92bf3 | 750 | Downgrade conformance errors to warnings |
fef3106c NB |
751 | |
752 | fpreprocessed | |
753 | C ObjC C++ ObjC++ | |
72de27ea | 754 | Treat the input file as already preprocessed |
fef3106c | 755 | |
6ea2bd47 | 756 | fpretty-templates |
5498f011 | 757 | C++ ObjC++ Var(flag_pretty_templates) Init(1) |
6ea2bd47 JM |
758 | -fno-pretty-templates Do not pretty-print template specializations as the template signature followed by the arguments |
759 | ||
264fa2db | 760 | freplace-objc-classes |
5498f011 | 761 | ObjC ObjC++ Var(flag_replace_objc_classes) |
264fa2db ZL |
762 | Used in Fix-and-Continue mode to indicate that object files may be swapped in at runtime |
763 | ||
fef3106c NB |
764 | frepo |
765 | C++ ObjC++ | |
bae92bf3 | 766 | Enable automatic template instantiation |
fef3106c NB |
767 | |
768 | frtti | |
5498f011 | 769 | C++ ObjC++ Optimization Var(flag_rtti) Init(1) |
bae92bf3 | 770 | Generate run time type descriptor information |
fef3106c NB |
771 | |
772 | fshort-double | |
5498f011 | 773 | C ObjC C++ ObjC++ Optimization Var(flag_short_double) |
5a170a05 | 774 | Use the same size for double as for float |
fef3106c NB |
775 | |
776 | fshort-enums | |
5498f011 | 777 | C ObjC C++ ObjC++ Optimization Var(flag_short_enums) |
5a170a05 | 778 | Use the narrowest integer type possible for enumeration types |
fef3106c NB |
779 | |
780 | fshort-wchar | |
5498f011 | 781 | C ObjC C++ ObjC++ Optimization Var(flag_short_wchar) |
5a170a05 | 782 | Force the underlying type for \"wchar_t\" to be \"unsigned short\" |
fef3106c | 783 | |
fef3106c | 784 | fsigned-bitfields |
5498f011 | 785 | C ObjC C++ ObjC++ Var(flag_signed_bitfields) Init(1) |
5a170a05 | 786 | When \"signed\" or \"unsigned\" is not given make the bitfield signed |
fef3106c NB |
787 | |
788 | fsigned-char | |
5498f011 | 789 | C ObjC C++ ObjC++ LTO Var(flag_signed_char) |
5a170a05 | 790 | Make \"char\" signed by default |
fef3106c NB |
791 | |
792 | fsquangle | |
2d2bd949 | 793 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
794 | |
795 | fstats | |
5498f011 | 796 | C++ ObjC++ Var(flag_detailed_statistics) |
bae92bf3 | 797 | Display statistics accumulated during compilation |
fef3106c | 798 | |
cbb4feb3 JM |
799 | fstrict-enums |
800 | C++ ObjC++ Optimization Var(flag_strict_enums) | |
801 | Assume that values of enumeration type are always within the minimum range of that type | |
802 | ||
fef3106c | 803 | fstrict-prototype |
2d2bd949 | 804 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
805 | |
806 | ftabstop= | |
7b086b11 | 807 | C ObjC C++ ObjC++ Joined RejectNegative UInteger |
72de27ea | 808 | -ftabstop=<number> Distance between tab stops for column reporting |
fef3106c NB |
809 | |
810 | ftemplate-depth- | |
5de8299c | 811 | C++ ObjC++ Joined RejectNegative Undocumented Alias(ftemplate-depth=) |
124e0d27 MLI |
812 | |
813 | ftemplate-depth= | |
c22cacf3 | 814 | C++ ObjC++ Joined RejectNegative UInteger |
124e0d27 | 815 | -ftemplate-depth=<number> Specify maximum template instantiation depth |
fef3106c NB |
816 | |
817 | fthis-is-variable | |
2d2bd949 | 818 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 819 | |
40aac948 | 820 | fthreadsafe-statics |
5498f011 | 821 | C++ ObjC++ Optimization Var(flag_threadsafe_statics) Init(1) |
c85ce869 | 822 | -fno-threadsafe-statics Do not generate thread-safe code for initializing local statics |
40aac948 | 823 | |
fef3106c | 824 | funsigned-bitfields |
5498f011 | 825 | C ObjC C++ ObjC++ Var(flag_signed_bitfields, 0) VarExists |
5a170a05 | 826 | When \"signed\" or \"unsigned\" is not given make the bitfield unsigned |
fef3106c NB |
827 | |
828 | funsigned-char | |
5498f011 | 829 | C ObjC C++ ObjC++ LTO Var(flag_signed_char, 0) VarExists |
5a170a05 | 830 | Make \"char\" unsigned by default |
fef3106c NB |
831 | |
832 | fuse-cxa-atexit | |
5498f011 | 833 | C++ ObjC++ Var(flag_use_cxa_atexit) Init(DEFAULT_USE_CXA_ATEXIT) |
bae92bf3 | 834 | Use __cxa_atexit to register destructors |
fef3106c | 835 | |
c7b5e395 | 836 | fuse-cxa-get-exception-ptr |
5498f011 | 837 | C++ ObjC++ Var(flag_use_cxa_get_exception_ptr) Init(2) |
c7b5e395 GK |
838 | Use __cxa_get_exception_ptr in exception handling |
839 | ||
d7afec4b | 840 | fvisibility-inlines-hidden |
d0b07283 | 841 | C++ ObjC++ |
d7afec4b ND |
842 | Marks all inlined methods as having hidden visibility |
843 | ||
ddbfd28d GK |
844 | fvisibility-ms-compat |
845 | C++ ObjC++ Var(flag_visibility_ms_compat) | |
846 | Changes visibility to match Microsoft Visual Studio by default | |
847 | ||
fef3106c | 848 | fvtable-gc |
2d2bd949 | 849 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 850 | No longer supported |
fef3106c NB |
851 | |
852 | fvtable-thunks | |
2d2bd949 | 853 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 854 | No longer supported |
fef3106c NB |
855 | |
856 | fweak | |
5498f011 | 857 | C++ ObjC++ Var(flag_weak) Init(1) |
bae92bf3 | 858 | Emit common-like symbols as weak symbols |
fef3106c | 859 | |
e6cc3a24 ZW |
860 | fwide-exec-charset= |
861 | C ObjC C++ ObjC++ Joined RejectNegative | |
72de27ea | 862 | -fwide-exec-charset=<cset> Convert all wide strings and character constants to character set <cset> |
e6cc3a24 | 863 | |
b20d9f0c | 864 | fworking-directory |
5498f011 | 865 | C ObjC C++ ObjC++ Var(flag_working_directory) Init(-1) |
b20d9f0c AO |
866 | Generate a #line directive pointing at the current working directory |
867 | ||
fef3106c | 868 | fxref |
2d2bd949 | 869 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 870 | No longer supported |
fef3106c | 871 | |
264fa2db | 872 | fzero-link |
5498f011 | 873 | ObjC ObjC++ Var(flag_zero_link) |
264fa2db ZL |
874 | Generate lazy class lookup (via objc_getClass()) for use in Zero-Link mode |
875 | ||
fef3106c | 876 | gen-decls |
5498f011 | 877 | ObjC ObjC++ Var(flag_gen_declaration) |
f2ac9964 | 878 | Dump declarations to a .decl file |
fef3106c | 879 | |
39ef6592 LC |
880 | femit-struct-debug-baseonly |
881 | C ObjC C++ ObjC++ | |
882 | -femit-struct-debug-baseonly Aggressive reduced debug info for structs | |
883 | ||
884 | femit-struct-debug-reduced | |
885 | C ObjC C++ ObjC++ | |
886 | -femit-struct-debug-reduced Conservative reduced debug info for structs | |
887 | ||
888 | femit-struct-debug-detailed= | |
889 | C ObjC C++ ObjC++ Joined | |
890 | -femit-struct-debug-detailed=<spec-list> Detailed reduced debug info for structs | |
891 | ||
fef3106c | 892 | idirafter |
61ff2bdc | 893 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 894 | -idirafter <dir> Add <dir> to the end of the system include path |
fef3106c NB |
895 | |
896 | imacros | |
61ff2bdc | 897 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
72de27ea | 898 | -imacros <file> Accept definition of macros in <file> |
fef3106c | 899 | |
2b6dd222 JM |
900 | imultilib |
901 | C ObjC C++ ObjC++ Joined Separate | |
f94e1d66 | 902 | -imultilib <dir> Set <dir> to be the multilib include subdirectory |
2b6dd222 | 903 | |
fef3106c | 904 | include |
61ff2bdc | 905 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
72de27ea | 906 | -include <file> Include the contents of <file> before other files |
fef3106c NB |
907 | |
908 | iprefix | |
909 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 910 | -iprefix <path> Specify <path> as a prefix for next two options |
fef3106c NB |
911 | |
912 | isysroot | |
61ff2bdc | 913 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 914 | -isysroot <dir> Set <dir> to be the system root directory |
fef3106c NB |
915 | |
916 | isystem | |
61ff2bdc | 917 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 918 | -isystem <dir> Add <dir> to the start of the system include path |
fef3106c | 919 | |
4bed3787 | 920 | iquote |
61ff2bdc | 921 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
4bed3787 MS |
922 | -iquote <dir> Add <dir> to the end of the quote include path |
923 | ||
fef3106c NB |
924 | iwithprefix |
925 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 926 | -iwithprefix <dir> Add <dir> to the end of the system include path |
fef3106c NB |
927 | |
928 | iwithprefixbefore | |
929 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 930 | -iwithprefixbefore <dir> Add <dir> to the end of the main include path |
fef3106c NB |
931 | |
932 | lang-asm | |
603349bf | 933 | C Undocumented RejectDriver |
fef3106c | 934 | |
fef3106c NB |
935 | nostdinc |
936 | C ObjC C++ ObjC++ | |
72de27ea | 937 | Do not search standard system include directories (those specified with -isystem will still be used) |
fef3106c NB |
938 | |
939 | nostdinc++ | |
72de27ea NB |
940 | C++ ObjC++ |
941 | Do not search standard system include directories for C++ | |
fef3106c NB |
942 | |
943 | o | |
944 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 945 | ; Documented in common.opt |
fef3106c NB |
946 | |
947 | pedantic | |
948 | C ObjC C++ ObjC++ | |
72de27ea | 949 | ; Documented in common.opt |
fef3106c NB |
950 | |
951 | pedantic-errors | |
952 | C ObjC C++ ObjC++ | |
72de27ea | 953 | ; Documented in common.opt |
fef3106c NB |
954 | |
955 | print-objc-runtime-info | |
956 | ObjC ObjC++ | |
f2ac9964 | 957 | Generate C header of platform-specific features |
fef3106c NB |
958 | |
959 | remap | |
960 | C ObjC C++ ObjC++ | |
72de27ea | 961 | Remap file names when including files |
fef3106c NB |
962 | |
963 | std=c++98 | |
964 | C++ ObjC++ | |
72de27ea | 965 | Conform to the ISO 1998 C++ standard |
fef3106c | 966 | |
966541e3 DG |
967 | std=c++0x |
968 | C++ ObjC++ | |
969 | Conform to the ISO 1998 C++ standard, with extensions that are likely to | |
970 | become a part of the upcoming ISO C++ standard, dubbed C++0x. Note that the | |
971 | extensions enabled by this mode are experimental and may be removed in | |
972 | future releases of GCC. | |
973 | ||
2778d766 JM |
974 | std=c1x |
975 | C ObjC | |
976 | Conform to the ISO 201X C standard draft (experimental and incomplete support) | |
977 | ||
fef3106c | 978 | std=c89 |
5de8299c | 979 | C ObjC Alias(std=c90) |
72de27ea | 980 | Conform to the ISO 1990 C standard |
fef3106c | 981 | |
7e1542b9 MLI |
982 | std=c90 |
983 | C ObjC | |
984 | Conform to the ISO 1990 C standard | |
985 | ||
fef3106c NB |
986 | std=c99 |
987 | C ObjC | |
72de27ea | 988 | Conform to the ISO 1999 C standard |
fef3106c NB |
989 | |
990 | std=c9x | |
5de8299c | 991 | C ObjC Alias(std=c99) |
72de27ea | 992 | Deprecated in favor of -std=c99 |
fef3106c NB |
993 | |
994 | std=gnu++98 | |
995 | C++ ObjC++ | |
72de27ea | 996 | Conform to the ISO 1998 C++ standard with GNU extensions |
fef3106c | 997 | |
966541e3 DG |
998 | std=gnu++0x |
999 | C++ ObjC++ | |
1000 | Conform to the ISO 1998 C++ standard, with GNU extensions and | |
1001 | extensions that are likely to become a part of the upcoming ISO C++ | |
1002 | standard, dubbed C++0x. Note that the extensions enabled by this mode | |
1003 | are experimental and may be removed in future releases of GCC. | |
1004 | ||
2778d766 JM |
1005 | std=gnu1x |
1006 | C ObjC | |
1007 | Conform to the ISO 201X C standard draft with GNU extensions (experimental and incomplete support) | |
1008 | ||
fef3106c | 1009 | std=gnu89 |
5de8299c | 1010 | C ObjC Alias(std=gnu90) |
72de27ea | 1011 | Conform to the ISO 1990 C standard with GNU extensions |
fef3106c | 1012 | |
7e1542b9 MLI |
1013 | std=gnu90 |
1014 | C ObjC | |
1015 | Conform to the ISO 1990 C standard with GNU extensions | |
1016 | ||
fef3106c NB |
1017 | std=gnu99 |
1018 | C ObjC | |
72de27ea | 1019 | Conform to the ISO 1999 C standard with GNU extensions |
fef3106c NB |
1020 | |
1021 | std=gnu9x | |
5de8299c | 1022 | C ObjC Alias(std=gnu99) |
72de27ea | 1023 | Deprecated in favor of -std=gnu99 |
fef3106c NB |
1024 | |
1025 | std=iso9899:1990 | |
5de8299c | 1026 | C ObjC Alias(std=c90) |
3a1e400e | 1027 | Conform to the ISO 1990 C standard |
fef3106c NB |
1028 | |
1029 | std=iso9899:199409 | |
1030 | C ObjC | |
72de27ea | 1031 | Conform to the ISO 1990 C standard as amended in 1994 |
fef3106c NB |
1032 | |
1033 | std=iso9899:1999 | |
5de8299c | 1034 | C ObjC Alias(std=c99) |
3a1e400e | 1035 | Conform to the ISO 1999 C standard |
fef3106c NB |
1036 | |
1037 | std=iso9899:199x | |
5de8299c | 1038 | C ObjC Alias(std=c99) |
3a1e400e | 1039 | Deprecated in favor of -std=iso9899:1999 |
fef3106c NB |
1040 | |
1041 | traditional-cpp | |
1042 | C ObjC C++ ObjC++ | |
72de27ea | 1043 | Enable traditional preprocessing |
fef3106c NB |
1044 | |
1045 | trigraphs | |
1046 | C ObjC C++ ObjC++ | |
72de27ea | 1047 | -trigraphs Support ISO C trigraphs |
fef3106c NB |
1048 | |
1049 | undef | |
5498f011 | 1050 | C ObjC C++ ObjC++ Var(flag_undef) |
72de27ea | 1051 | Do not predefine system-specific and GCC-specific macros |
fef3106c NB |
1052 | |
1053 | v | |
b3eaaf1a | 1054 | Common C ObjC C++ ObjC++ |
72de27ea | 1055 | Enable verbose output |
fef3106c NB |
1056 | |
1057 | w | |
1058 | C ObjC C++ ObjC++ | |
72de27ea | 1059 | ; Documented in common.opt |
e11a4ae5 NB |
1060 | |
1061 | ; This comment is to ensure we retain the blank line above. |