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Commit | Line | Data |
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fef3106c | 1 | ; Options for the C, ObjC, C++ and ObjC++ front ends. |
47ea1edf | 2 | ; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, |
93286335 | 3 | ; 2011, 2012 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 | ||
e200444e JM |
37 | -all-warnings |
38 | C ObjC C++ ObjC++ Warning Alias(Wall) | |
39 | ||
40 | -ansi | |
41 | C ObjC C++ ObjC++ Alias(ansi) | |
42 | ||
43 | -assert | |
44 | C ObjC C++ ObjC++ Separate Alias(A) MissingArgError(assertion missing after %qs) | |
45 | ||
46 | -assert= | |
47 | C ObjC C++ ObjC++ Joined Alias(A) MissingArgError(assertion missing after %qs) | |
48 | ||
49 | -comments | |
50 | C ObjC C++ ObjC++ Alias(C) | |
51 | ||
52 | -comments-in-macros | |
53 | C ObjC C++ ObjC++ Alias(CC) | |
54 | ||
55 | -define-macro | |
56 | C ObjC C++ ObjC++ Separate Alias(D) MissingArgError(macro name missing after %qs) | |
57 | ||
58 | -define-macro= | |
59 | C ObjC C++ ObjC++ Joined Alias(D) MissingArgError(macro name missing after %qs) | |
60 | ||
61 | -dependencies | |
62 | C ObjC C++ ObjC++ Alias(M) | |
63 | ||
64 | -dump | |
65 | C ObjC C++ ObjC++ Separate Alias(d) | |
66 | ||
67 | -dump= | |
68 | C ObjC C++ ObjC++ Joined Alias(d) | |
69 | ||
70 | -imacros | |
71 | C ObjC C++ ObjC++ Separate Alias(imacros) MissingArgError(missing filename after %qs) | |
72 | ||
73 | -imacros= | |
74 | C ObjC C++ ObjC++ Joined Alias(imacros) MissingArgError(missing filename after %qs) | |
75 | ||
76 | -include | |
77 | C ObjC C++ ObjC++ Separate Alias(include) MissingArgError(missing filename after %qs) | |
78 | ||
79 | -include= | |
80 | C ObjC C++ ObjC++ Joined Alias(include) MissingArgError(missing filename after %qs) | |
81 | ||
82 | -include-barrier | |
83 | C ObjC C++ ObjC++ Alias(I, -) | |
84 | ||
85 | -include-directory | |
86 | C ObjC C++ ObjC++ Separate Alias(I) MissingArgError(missing path after %qs) | |
87 | ||
88 | -include-directory= | |
89 | C ObjC C++ ObjC++ Joined Alias(I) MissingArgError(missing path after %qs) | |
90 | ||
91 | -include-directory-after | |
92 | C ObjC C++ ObjC++ Separate Alias(idirafter) MissingArgError(missing path after %qs) | |
93 | ||
94 | -include-directory-after= | |
95 | C ObjC C++ ObjC++ Joined Alias(idirafter) MissingArgError(missing path after %qs) | |
96 | ||
97 | -include-prefix | |
98 | C ObjC C++ ObjC++ Separate Alias(iprefix) | |
99 | ||
100 | -include-prefix= | |
101 | C ObjC C++ ObjC++ JoinedOrMissing Alias(iprefix) | |
102 | ||
103 | -include-with-prefix | |
104 | C ObjC C++ ObjC++ Separate Alias(iwithprefix) | |
105 | ||
106 | -include-with-prefix= | |
107 | C ObjC C++ ObjC++ JoinedOrMissing Alias(iwithprefix) | |
108 | ||
109 | -include-with-prefix-after | |
110 | C ObjC C++ ObjC++ Separate Alias(iwithprefix) | |
111 | ||
112 | -include-with-prefix-after= | |
113 | C ObjC C++ ObjC++ JoinedOrMissing Alias(iwithprefix) | |
114 | ||
115 | -include-with-prefix-before | |
116 | C ObjC C++ ObjC++ Separate Alias(iwithprefixbefore) | |
117 | ||
118 | -include-with-prefix-before= | |
119 | C ObjC C++ ObjC++ JoinedOrMissing Alias(iwithprefixbefore) | |
120 | ||
121 | -no-integrated-cpp | |
122 | Driver Alias(no-integrated-cpp) | |
123 | ||
124 | -no-line-commands | |
125 | C ObjC C++ ObjC++ Alias(P) | |
126 | ||
127 | -no-standard-includes | |
128 | C ObjC C++ ObjC++ Alias(nostdinc) | |
129 | ||
130 | -no-warnings | |
131 | C ObjC C++ ObjC++ Alias(w) | |
132 | ||
133 | -output | |
134 | C ObjC C++ ObjC++ Separate Alias(o) | |
135 | ||
136 | -output= | |
137 | C ObjC C++ ObjC++ Joined Alias(o) | |
138 | ||
fef3106c NB |
139 | -output-pch= |
140 | C ObjC C++ ObjC++ Joined Separate | |
141 | ||
e200444e JM |
142 | -pedantic |
143 | C ObjC C++ ObjC++ Alias(pedantic) | |
144 | ||
145 | -pedantic-errors | |
146 | C ObjC C++ ObjC++ Alias(pedantic-errors) | |
147 | ||
148 | -preprocess | |
149 | C ObjC C++ ObjC++ Undocumented Alias(E) | |
150 | ||
151 | -print-missing-file-dependencies | |
152 | C ObjC C++ ObjC++ Alias(MG) | |
153 | ||
154 | -trace-includes | |
155 | C ObjC C++ ObjC++ Alias(H) | |
156 | ||
157 | -traditional | |
158 | Driver Alias(traditional) | |
159 | ||
160 | -traditional-cpp | |
161 | C ObjC C++ ObjC++ Alias(traditional-cpp) | |
162 | ||
163 | -trigraphs | |
164 | C ObjC C++ ObjC++ Alias(trigraphs) | |
165 | ||
166 | -undefine-macro | |
167 | C ObjC C++ ObjC++ Separate Alias(U) MissingArgError(macro name missing after %qs) | |
168 | ||
169 | -undefine-macro= | |
170 | C ObjC C++ ObjC++ Joined Alias(U) MissingArgError(macro name missing after %qs) | |
171 | ||
172 | -user-dependencies | |
173 | C ObjC C++ ObjC++ Alias(MM) | |
174 | ||
175 | -verbose | |
176 | Common C ObjC C++ ObjC++ Alias(v) | |
177 | ||
178 | -write-dependencies | |
179 | C ObjC C++ ObjC++ NoDriverArg Separate Alias(MD) MissingArgError(missing filename after %qs) | |
180 | ||
181 | -write-user-dependencies | |
182 | C ObjC C++ ObjC++ NoDriverArg Separate Alias(MMD) MissingArgError(missing filename after %qs) | |
183 | ||
fef3106c | 184 | A |
61ff2bdc | 185 | C ObjC C++ ObjC++ Joined Separate MissingArgError(assertion missing after %qs) |
72de27ea | 186 | -A<question>=<answer> Assert the <answer> to <question>. Putting '-' before <question> disables the <answer> to <question> |
fef3106c NB |
187 | |
188 | C | |
189 | C ObjC C++ ObjC++ | |
72de27ea | 190 | Do not discard comments |
fef3106c NB |
191 | |
192 | CC | |
193 | C ObjC C++ ObjC++ | |
72de27ea | 194 | Do not discard comments in macro expansions |
fef3106c NB |
195 | |
196 | D | |
61ff2bdc | 197 | C ObjC C++ ObjC++ Joined Separate MissingArgError(macro name missing after %qs) |
72de27ea | 198 | -D<macro>[=<val>] Define a <macro> with <val> as its value. If just <macro> is given, <val> is taken to be 1 |
fef3106c NB |
199 | |
200 | E | |
5498f011 | 201 | C ObjC C++ ObjC++ Undocumented Var(flag_preprocess_only) |
fef3106c | 202 | |
94d1613b | 203 | F |
bd837408 | 204 | Driver C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
4e994432 | 205 | -F <dir> Add <dir> to the end of the main framework include path |
94d1613b | 206 | |
fef3106c NB |
207 | H |
208 | C ObjC C++ ObjC++ | |
72de27ea | 209 | Print the name of header files as they are used |
fef3106c NB |
210 | |
211 | I | |
61ff2bdc | 212 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
4bed3787 | 213 | -I <dir> Add <dir> to the end of the main include path |
fef3106c NB |
214 | |
215 | M | |
216 | C ObjC C++ ObjC++ | |
72de27ea | 217 | Generate make dependencies |
fef3106c | 218 | |
c878765b JM |
219 | MD |
220 | C ObjC C++ ObjC++ NoDriverArg Separate MissingArgError(missing filename after %qs) | |
221 | Generate make dependencies and compile | |
fef3106c NB |
222 | |
223 | MF | |
61ff2bdc | 224 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
72de27ea | 225 | -MF <file> Write dependency output to the given file |
fef3106c NB |
226 | |
227 | MG | |
228 | C ObjC C++ ObjC++ | |
72de27ea | 229 | Treat missing header files as generated files |
fef3106c NB |
230 | |
231 | MM | |
232 | C ObjC C++ ObjC++ | |
72de27ea | 233 | Like -M but ignore system header files |
fef3106c | 234 | |
c878765b JM |
235 | MMD |
236 | C ObjC C++ ObjC++ NoDriverArg Separate MissingArgError(missing filename after %qs) | |
237 | Like -MD but ignore system header files | |
fef3106c NB |
238 | |
239 | MP | |
240 | C ObjC C++ ObjC++ | |
72de27ea | 241 | Generate phony targets for all headers |
fef3106c NB |
242 | |
243 | MQ | |
61ff2bdc | 244 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing makefile target after %qs) |
72de27ea | 245 | -MQ <target> Add a MAKE-quoted target |
fef3106c NB |
246 | |
247 | MT | |
61ff2bdc | 248 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing makefile target after %qs) |
72de27ea | 249 | -MT <target> Add an unquoted target |
fef3106c NB |
250 | |
251 | P | |
252 | C ObjC C++ ObjC++ | |
72de27ea | 253 | Do not generate #line directives |
fef3106c NB |
254 | |
255 | U | |
61ff2bdc | 256 | C ObjC C++ ObjC++ Joined Separate MissingArgError(macro name missing after %qs) |
72de27ea | 257 | -U<macro> Undefine <macro> |
fef3106c NB |
258 | |
259 | Wabi | |
d7f09764 | 260 | C ObjC C++ ObjC++ LTO Var(warn_abi) Warning |
7619c085 | 261 | Warn about things that will change when compiling with an ABI-compliant compiler |
fef3106c | 262 | |
bce08d50 | 263 | Wpsabi |
d7f09764 | 264 | C ObjC C++ ObjC++ LTO Var(warn_psabi) Init(1) Undocumented |
bce08d50 | 265 | |
c116cd05 MLI |
266 | Waddress |
267 | C ObjC C++ ObjC++ Var(warn_address) Warning | |
268 | Warn about suspicious uses of memory addresses | |
269 | ||
fef3106c | 270 | Wall |
c662432e | 271 | C ObjC C++ ObjC++ Warning |
5a170a05 | 272 | Enable most warning messages |
fef3106c | 273 | |
6e955430 | 274 | Wassign-intercept |
c662432e | 275 | ObjC ObjC++ Var(warn_assign_intercept) Warning |
6e955430 ZL |
276 | Warn whenever an Objective-C assignment is being intercepted by the garbage collector |
277 | ||
fef3106c | 278 | Wbad-function-cast |
c662432e | 279 | C ObjC Var(warn_bad_function_cast) Warning |
5a170a05 | 280 | Warn about casting functions to incompatible types |
fef3106c | 281 | |
c047ce93 SB |
282 | Wbuiltin-macro-redefined |
283 | C ObjC C++ ObjC++ Warning | |
284 | Warn when a built-in preprocessor macro is undefined or redefined | |
285 | ||
b7e20b53 | 286 | Wc++-compat |
2cbac420 | 287 | C ObjC Var(warn_cxx_compat) Warning |
b7e20b53 GDR |
288 | Warn about C constructs that are not in the common subset of C and C++ |
289 | ||
e1f1ee86 | 290 | Wc++0x-compat |
21af5cdf | 291 | C++ ObjC++ Var(warn_cxx0x_compat) Warning |
97e3ad20 JM |
292 | Deprecated in favor of -Wc++11-compat |
293 | ||
294 | Wc++11-compat | |
295 | C++ ObjC++ Warning Alias(Wc++0x-compat) | |
296 | Warn about C++ constructs whose meaning differs between ISO C++ 1998 and ISO C++ 2011 | |
b7e20b53 | 297 | |
fef3106c | 298 | Wcast-qual |
c662432e | 299 | C ObjC C++ ObjC++ Var(warn_cast_qual) Warning |
5a170a05 | 300 | Warn about casts which discard qualifiers |
fef3106c NB |
301 | |
302 | Wchar-subscripts | |
c662432e | 303 | C ObjC C++ ObjC++ Var(warn_char_subscripts) Warning |
5a170a05 | 304 | Warn about subscripts whose type is \"char\" |
fef3106c | 305 | |
2b001724 | 306 | Wclobbered |
c662432e | 307 | C ObjC C++ ObjC++ Var(warn_clobbered) Init(-1) Warning |
2b001724 MLI |
308 | Warn about variables that might be changed by \"longjmp\" or \"vfork\" |
309 | ||
fef3106c | 310 | Wcomment |
c662432e | 311 | C ObjC C++ ObjC++ Warning |
72de27ea | 312 | Warn about possibly nested block comments, and C++ comments spanning more than one physical line |
fef3106c NB |
313 | |
314 | Wcomments | |
5de8299c | 315 | C ObjC C++ ObjC++ Warning Alias(Wcomment) |
72de27ea | 316 | Synonym for -Wcomment |
fef3106c NB |
317 | |
318 | Wconversion | |
c662432e | 319 | C ObjC C++ ObjC++ Var(warn_conversion) Warning |
05170031 | 320 | Warn for implicit type conversions that may change a value |
fef3106c | 321 | |
17251338 MLI |
322 | Wconversion-null |
323 | C++ ObjC++ Var(warn_conversion_null) Init(1) Warning | |
324 | Warn for converting NULL from/to a non-pointer type | |
325 | ||
7060db96 MLI |
326 | Wsign-conversion |
327 | C ObjC C++ ObjC++ Var(warn_sign_conversion) Init(-1) | |
328 | Warn for implicit type conversions between signed and unsigned integers | |
329 | ||
fef3106c | 330 | Wctor-dtor-privacy |
c662432e | 331 | C++ ObjC++ Var(warn_ctor_dtor_privacy) Warning |
bae92bf3 | 332 | Warn when all constructors and destructors are private |
fef3106c | 333 | |
85617eba | 334 | Wdeclaration-after-statement |
c662432e | 335 | C ObjC Var(warn_declaration_after_statement) Warning |
85617eba HPN |
336 | Warn when a declaration is found after a statement |
337 | ||
014ab419 JW |
338 | Wdelete-non-virtual-dtor |
339 | C++ ObjC++ Var(warn_delnonvdtor) Warning | |
340 | Warn about deleting polymorphic objects with non-virtual destructors | |
341 | ||
fef3106c | 342 | Wdeprecated |
899015a0 | 343 | C C++ ObjC ObjC++ Var(warn_deprecated) Init(1) Warning |
9a0f3e86 | 344 | Warn if a deprecated compiler feature, class, method, or field is used |
fef3106c NB |
345 | |
346 | Wdiv-by-zero | |
2cbac420 | 347 | C ObjC C++ ObjC++ Var(warn_div_by_zero) Init(1) Warning |
5a170a05 | 348 | Warn about compile-time integer division by zero |
fef3106c NB |
349 | |
350 | Weffc++ | |
c662432e | 351 | C++ ObjC++ Var(warn_ecpp) Warning |
bae92bf3 | 352 | Warn about violations of Effective C++ style rules |
fef3106c | 353 | |
b3b433c5 | 354 | Wempty-body |
c662432e | 355 | C ObjC C++ ObjC++ Var(warn_empty_body) Init(-1) Warning |
b3b433c5 MLI |
356 | Warn about an empty body in an if or else statement |
357 | ||
fef3106c | 358 | Wendif-labels |
c662432e | 359 | C ObjC C++ ObjC++ Warning |
72de27ea | 360 | Warn about stray tokens after #elif and #endif |
fef3106c | 361 | |
a3299096 | 362 | Wenum-compare |
6866c6e8 | 363 | C ObjC C++ ObjC++ Var(warn_enum_compare) Init(-1) Warning |
a3299096 MM |
364 | Warn about comparison of different enum types |
365 | ||
fef3106c NB |
366 | Werror |
367 | C ObjC C++ ObjC++ | |
72de27ea | 368 | ; Documented in common.opt |
fef3106c NB |
369 | |
370 | Werror-implicit-function-declaration | |
5de8299c | 371 | C ObjC RejectNegative Warning Alias(Werror=, implicit-function-declaration) |
dc90f45b | 372 | This switch is deprecated; use -Werror=implicit-function-declaration instead |
fef3106c NB |
373 | |
374 | Wfloat-equal | |
c662432e | 375 | C ObjC C++ ObjC++ Var(warn_float_equal) Warning |
5a170a05 | 376 | Warn if testing floating point numbers for equality |
fef3106c NB |
377 | |
378 | Wformat | |
c662432e | 379 | C ObjC C++ ObjC++ Warning |
5a170a05 | 380 | Warn about printf/scanf/strftime/strfmon format string anomalies |
fef3106c NB |
381 | |
382 | Wformat-extra-args | |
c662432e | 383 | C ObjC C++ ObjC++ Var(warn_format_extra_args) Warning |
5a170a05 | 384 | Warn if passing too many arguments to a function for its format string |
fef3106c NB |
385 | |
386 | Wformat-nonliteral | |
c662432e | 387 | C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning |
5a170a05 | 388 | Warn about format strings that are not literals |
fef3106c | 389 | |
ca178f85 | 390 | Wformat-contains-nul |
6d16b6e7 | 391 | C ObjC C++ ObjC++ Var(warn_format_contains_nul) Warning |
ca178f85 BK |
392 | Warn about format strings that contain NUL bytes |
393 | ||
fef3106c | 394 | Wformat-security |
c662432e | 395 | C ObjC C++ ObjC++ Var(warn_format_security) Warning |
5a170a05 | 396 | Warn about possible security problems with format functions |
fef3106c NB |
397 | |
398 | Wformat-y2k | |
c662432e | 399 | C ObjC C++ ObjC++ Var(warn_format_y2k) Warning |
5a170a05 | 400 | Warn about strftime formats yielding 2-digit years |
fef3106c NB |
401 | |
402 | Wformat-zero-length | |
4fbbcd7f | 403 | C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning |
7619c085 | 404 | Warn about zero-length formats |
fef3106c NB |
405 | |
406 | Wformat= | |
c662432e | 407 | C ObjC C++ ObjC++ Joined Warning |
fef3106c | 408 | |
5db2e9ca DK |
409 | Wignored-qualifiers |
410 | C C++ Var(warn_ignored_qualifiers) Init(-1) Warning | |
411 | Warn whenever type qualifiers are ignored. | |
412 | ||
3390f9c9 | 413 | Winit-self |
c662432e | 414 | C ObjC C++ ObjC++ Var(warn_init_self) Warning |
ab532386 | 415 | Warn about variables which are initialized to themselves |
3390f9c9 | 416 | |
fef3106c | 417 | Wimplicit |
3734d960 MLI |
418 | C ObjC Var(warn_implicit) Init(-1) Warning |
419 | Warn about implicit declarations | |
fef3106c | 420 | |
0a0b3574 MM |
421 | Wdouble-promotion |
422 | C ObjC C++ ObjC++ Var(warn_double_promotion) Warning | |
423 | Warn about implicit conversions from \"float\" to \"double\" | |
424 | ||
fef3106c | 425 | Wimplicit-function-declaration |
dc90f45b | 426 | C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning |
5a170a05 | 427 | Warn about implicit function declarations |
fef3106c NB |
428 | |
429 | Wimplicit-int | |
3734d960 | 430 | C ObjC Var(warn_implicit_int) Init(-1) Warning |
5a170a05 | 431 | Warn when a declaration does not specify a type |
fef3106c NB |
432 | |
433 | Wimport | |
2d2bd949 | 434 | C ObjC C++ ObjC++ Undocumented Ignore |
fef3106c | 435 | |
53a2494e | 436 | Wint-to-pointer-cast |
dc8d2739 | 437 | C ObjC C++ ObjC++ Var(warn_int_to_pointer_cast) Init(1) Warning |
53a2494e JM |
438 | Warn when there is a cast to a pointer from an integer of a different size |
439 | ||
fef3106c | 440 | Winvalid-offsetof |
c662432e | 441 | C++ ObjC++ Var(warn_invalid_offsetof) Init(1) Warning |
bae92bf3 | 442 | Warn about invalid uses of the \"offsetof\" macro |
fef3106c NB |
443 | |
444 | Winvalid-pch | |
c662432e | 445 | C ObjC C++ ObjC++ Warning |
5a170a05 | 446 | Warn about PCH files that are found but not used |
fef3106c | 447 | |
e1b7793c | 448 | Wjump-misses-init |
da667743 | 449 | C ObjC Var(warn_jump_misses_init) Init(-1) Warning |
e1b7793c ILT |
450 | Warn when a jump misses a variable initialization |
451 | ||
ca409efd | 452 | Wlogical-op |
7bb27074 | 453 | C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning |
ca409efd MLI |
454 | Warn when a logical operator is suspiciously always evaluating to true or false |
455 | ||
fef3106c | 456 | Wlong-long |
9c650d90 | 457 | C ObjC C++ ObjC++ Var(warn_long_long) Init(-1) Warning |
5a170a05 | 458 | Do not warn about using \"long long\" when -pedantic |
fef3106c NB |
459 | |
460 | Wmain | |
4003301d | 461 | C ObjC C++ ObjC++ Var(warn_main) Init(-1) Warning |
5a170a05 | 462 | Warn about suspicious declarations of \"main\" |
fef3106c NB |
463 | |
464 | Wmissing-braces | |
c662432e | 465 | C ObjC C++ ObjC++ Var(warn_missing_braces) Warning |
5a170a05 | 466 | Warn about possibly missing braces around initializers |
fef3106c NB |
467 | |
468 | Wmissing-declarations | |
c662432e | 469 | C ObjC C++ ObjC++ Var(warn_missing_declarations) Warning |
5a170a05 | 470 | Warn about global functions without previous declarations |
fef3106c | 471 | |
eaac4679 | 472 | Wmissing-field-initializers |
c662432e | 473 | C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1) Warning |
eaac4679 RS |
474 | Warn about missing fields in struct initializers |
475 | ||
fef3106c | 476 | Wmissing-format-attribute |
c662432e | 477 | C ObjC C++ ObjC++ Var(warn_missing_format_attribute) Warning |
5a170a05 | 478 | Warn about functions which might be candidates for format attributes |
fef3106c | 479 | |
b02398bd | 480 | Wmissing-include-dirs |
c662432e | 481 | C ObjC C++ ObjC++ Warning |
b02398bd BE |
482 | Warn about user-specified include directories that do not exist |
483 | ||
cb4af25a | 484 | Wmissing-parameter-type |
c662432e | 485 | C ObjC Var(warn_missing_parameter_type) Init(-1) Warning |
cb4af25a MLI |
486 | Warn about function parameters declared without a type specifier in K&R-style functions |
487 | ||
fef3106c | 488 | Wmissing-prototypes |
c662432e | 489 | C ObjC Var(warn_missing_prototypes) Warning |
5a170a05 | 490 | Warn about global functions without prototypes |
fef3106c | 491 | |
5720c0dc RG |
492 | Wmudflap |
493 | C ObjC C++ ObjC++ Var(warn_mudflap) Init(1) Warning | |
494 | Warn about constructs not instrumented by -fmudflap | |
495 | ||
fef3106c | 496 | Wmultichar |
c662432e | 497 | C ObjC C++ ObjC++ Warning |
5a170a05 | 498 | Warn about use of multi-character character constants |
fef3106c | 499 | |
76f86d00 | 500 | Wnarrowing |
25339f10 JM |
501 | C ObjC C++ ObjC++ Warning Var(warn_narrowing) Init(-1) |
502 | Warn about narrowing conversions within { } that are ill-formed in C++11 | |
76f86d00 | 503 | |
fef3106c | 504 | Wnested-externs |
c662432e | 505 | C ObjC Var(warn_nested_externs) Warning |
5a170a05 | 506 | Warn about \"extern\" declarations not at file scope |
fef3106c | 507 | |
59f9c2ed JM |
508 | Wnoexcept |
509 | C++ ObjC++ Var(warn_noexcept) Warning | |
3c820dcd | 510 | Warn when a noexcept expression evaluates to false even though the expression can't actually throw |
59f9c2ed | 511 | |
fef3106c | 512 | Wnon-template-friend |
c662432e | 513 | C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warning |
bae92bf3 | 514 | Warn when non-templatized friend functions are declared within a template |
fef3106c NB |
515 | |
516 | Wnon-virtual-dtor | |
c662432e | 517 | C++ ObjC++ Var(warn_nonvdtor) Warning |
bae92bf3 | 518 | Warn about non-virtual destructors |
fef3106c NB |
519 | |
520 | Wnonnull | |
ef12edb5 | 521 | C ObjC C++ ObjC++ Var(warn_nonnull) Warning |
7619c085 | 522 | Warn about NULL being passed to argument slots marked as requiring non-NULL |
fef3106c | 523 | |
50668cf6 | 524 | Wnormalized= |
c662432e | 525 | C ObjC C++ ObjC++ Joined Warning |
50668cf6 GK |
526 | -Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings |
527 | ||
fef3106c | 528 | Wold-style-cast |
c662432e | 529 | C++ ObjC++ Var(warn_old_style_cast) Warning |
bae92bf3 | 530 | Warn if a C-style cast is used in a program |
fef3106c | 531 | |
b1ed4cb4 | 532 | Wold-style-declaration |
c662432e | 533 | C ObjC Var(warn_old_style_declaration) Init(-1) Warning |
b1ed4cb4 MLI |
534 | Warn for obsolescent usage in a declaration |
535 | ||
c034f121 | 536 | Wold-style-definition |
c662432e | 537 | C ObjC Var(warn_old_style_definition) Warning |
c034f121 AJ |
538 | Warn if an old-style parameter definition is used |
539 | ||
89a42ac8 | 540 | Woverlength-strings |
c662432e | 541 | C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1) Warning |
89a42ac8 ZW |
542 | Warn if a string is longer than the maximum portable length specified by the standard |
543 | ||
fef3106c | 544 | Woverloaded-virtual |
c662432e | 545 | C++ ObjC++ Var(warn_overloaded_virtual) Warning |
bae92bf3 | 546 | Warn about overloaded virtual function names |
fef3106c | 547 | |
7ed322d7 | 548 | Woverride-init |
c662432e | 549 | C ObjC Var(warn_override_init) Init(-1) Warning |
7ed322d7 JM |
550 | Warn about overriding initializers without side effects |
551 | ||
2cd36c22 | 552 | Wpacked-bitfield-compat |
bee6fa6d | 553 | C ObjC C++ ObjC++ Var(warn_packed_bitfield_compat) Init(-1) Warning |
2cd36c22 AN |
554 | Warn about packed bit-fields whose offset changed in GCC 4.4 |
555 | ||
fef3106c | 556 | Wparentheses |
c662432e | 557 | C ObjC C++ ObjC++ Var(warn_parentheses) Warning |
5a170a05 | 558 | Warn about possibly missing parentheses |
fef3106c NB |
559 | |
560 | Wpmf-conversions | |
c662432e | 561 | C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning |
bae92bf3 | 562 | Warn when converting the type of pointers to member functions |
fef3106c NB |
563 | |
564 | Wpointer-arith | |
c662432e | 565 | C ObjC C++ ObjC++ Var(warn_pointer_arith) Warning |
5a170a05 | 566 | Warn about function pointer arithmetic |
fef3106c | 567 | |
53a2494e | 568 | Wpointer-to-int-cast |
c662432e | 569 | C ObjC Var(warn_pointer_to_int_cast) Init(1) Warning |
53a2494e JM |
570 | Warn when a pointer is cast to an integer of a different size |
571 | ||
b9b8dde3 | 572 | Wpragmas |
c662432e | 573 | C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) Warning |
b9b8dde3 DD |
574 | Warn about misuses of pragmas |
575 | ||
9a179d01 NP |
576 | Wproperty-assign-default |
577 | ObjC ObjC++ Var(warn_property_assign_default) Init(1) Warning | |
578 | Warn if a property for an Objective-C object has no assign semantics specified | |
579 | ||
fef3106c | 580 | Wprotocol |
c662432e | 581 | ObjC ObjC++ Var(warn_protocol) Init(1) Warning |
f2ac9964 | 582 | Warn if inherited methods are unimplemented |
fef3106c NB |
583 | |
584 | Wredundant-decls | |
c662432e | 585 | C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning |
5a170a05 | 586 | Warn about multiple declarations of the same object |
fef3106c NB |
587 | |
588 | Wreorder | |
c662432e | 589 | C++ ObjC++ Var(warn_reorder) Warning |
bae92bf3 | 590 | Warn when the compiler reorders code |
fef3106c NB |
591 | |
592 | Wreturn-type | |
c662432e | 593 | C ObjC C++ ObjC++ Var(warn_return_type) Warning |
bae92bf3 | 594 | Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++) |
fef3106c NB |
595 | |
596 | Wselector | |
c662432e | 597 | ObjC ObjC++ Var(warn_selector) Warning |
f2ac9964 | 598 | Warn if a selector has multiple methods |
fef3106c NB |
599 | |
600 | Wsequence-point | |
c662432e | 601 | C ObjC C++ ObjC++ Var(warn_sequence_point) Warning |
5a170a05 | 602 | Warn about possible violations of sequence point rules |
fef3106c NB |
603 | |
604 | Wsign-compare | |
c662432e | 605 | C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1) Warning |
5a170a05 | 606 | Warn about signed-unsigned comparisons |
fef3106c NB |
607 | |
608 | Wsign-promo | |
c662432e | 609 | C++ ObjC++ Var(warn_sign_promo) Warning |
bae92bf3 | 610 | Warn when overload promotes from unsigned to signed |
fef3106c | 611 | |
b2f97e4a | 612 | Wstrict-null-sentinel |
5498f011 | 613 | C++ ObjC++ Warning Var(warn_strict_null_sentinel) |
b2f97e4a MM |
614 | Warn about uncasted NULL used as sentinel |
615 | ||
fef3106c | 616 | Wstrict-prototypes |
c662432e | 617 | C ObjC Var(warn_strict_prototypes) Warning |
5a170a05 | 618 | Warn about unprototyped function declarations |
fef3106c | 619 | |
6e955430 | 620 | Wstrict-selector-match |
c662432e | 621 | ObjC ObjC++ Var(warn_strict_selector_match) Warning |
6e955430 ZL |
622 | Warn if type signatures of candidate methods do not match exactly |
623 | ||
23462d4d UB |
624 | Wsync-nand |
625 | C C++ Var(warn_sync_nand) Init(1) Warning | |
626 | Warn when __sync_fetch_and_nand and __sync_nand_and_fetch built-in functions are used | |
627 | ||
fef3106c | 628 | Wsynth |
c662432e | 629 | C++ ObjC++ Var(warn_synth) Warning |
802e3f8c | 630 | Deprecated. This switch has no effect |
fef3106c NB |
631 | |
632 | Wsystem-headers | |
c662432e | 633 | C ObjC C++ ObjC++ Warning |
9a0f3e86 | 634 | ; Documented in common.opt |
fef3106c NB |
635 | |
636 | Wtraditional | |
c662432e | 637 | C ObjC Var(warn_traditional) Warning |
72de27ea | 638 | Warn about features not present in traditional C |
fef3106c | 639 | |
05170031 | 640 | Wtraditional-conversion |
c662432e | 641 | C ObjC Var(warn_traditional_conversion) Warning |
05170031 MLI |
642 | Warn of prototypes causing type conversions different from what would happen in the absence of prototype |
643 | ||
fef3106c | 644 | Wtrigraphs |
c662432e | 645 | C ObjC C++ ObjC++ Warning |
72de27ea | 646 | Warn if trigraphs are encountered that might affect the meaning of the program |
fef3106c NB |
647 | |
648 | Wundeclared-selector | |
c662432e | 649 | ObjC ObjC++ Var(warn_undeclared_selector) Warning |
7619c085 | 650 | Warn about @selector()s without previously declared methods |
fef3106c NB |
651 | |
652 | Wundef | |
c662432e | 653 | C ObjC C++ ObjC++ Warning |
72de27ea | 654 | Warn if an undefined macro is used in an #if directive |
fef3106c NB |
655 | |
656 | Wunknown-pragmas | |
c662432e | 657 | C ObjC C++ ObjC++ Warning |
5a170a05 | 658 | Warn about unrecognized pragmas |
fef3106c | 659 | |
6ec637a4 JJ |
660 | Wunsuffixed-float-constants |
661 | C ObjC Var(warn_unsuffixed_float_constants) Warning | |
662 | Warn about unsuffixed float constants | |
663 | ||
3797cb21 DS |
664 | Wunused-local-typedefs |
665 | C ObjC C++ ObjC++ Var(warn_unused_local_typedefs) Warning | |
93286335 | 666 | Warn when typedefs locally defined in a function are not used |
3797cb21 | 667 | |
fef3106c | 668 | Wunused-macros |
c662432e | 669 | C ObjC C++ ObjC++ Warning |
72de27ea | 670 | Warn about macros defined in the main file that are not used |
fef3106c | 671 | |
156f545a MLI |
672 | Wunused-result |
673 | C ObjC C++ ObjC++ Var(warn_unused_result) Init(1) Warning | |
674 | Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value | |
675 | ||
e5b79219 | 676 | Wvariadic-macros |
c662432e | 677 | C ObjC C++ ObjC++ Warning |
e5b79219 RH |
678 | Do not warn about using variadic macros when -pedantic |
679 | ||
50d50fc7 SP |
680 | Wvla |
681 | C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning | |
682 | Warn if a variable length array is used | |
683 | ||
16302daf MLI |
684 | Wvolatile-register-var |
685 | C ObjC C++ ObjC++ Var(warn_volatile_register_var) Warning | |
686 | Warn when a register variable is declared volatile | |
687 | ||
fef3106c | 688 | Wwrite-strings |
c662432e | 689 | C ObjC C++ ObjC++ Var(warn_write_strings) Warning |
d8a07487 | 690 | 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 | 691 | |
f2fd3821 | 692 | Wpointer-sign |
c662432e | 693 | C ObjC Var(warn_pointer_sign) Init(-1) Warning |
c85ce869 | 694 | Warn when a pointer differs in signedness in an assignment |
f2fd3821 | 695 | |
89401152 PC |
696 | Wzero-as-null-pointer-constant |
697 | C++ ObjC++ Var(warn_zero_as_null_pointer_constant) Warning | |
698 | Warn when a literal '0' is used as null pointer | |
699 | ||
04398fa8 PC |
700 | Wuseless-cast |
701 | C++ ObjC++ Var(warn_useless_cast) Warning | |
702 | Warn about useless casts | |
703 | ||
fef3106c NB |
704 | ansi |
705 | C ObjC C++ ObjC++ | |
c85ce869 | 706 | A synonym for -std=c89 (for C) or -std=c++98 (for C++) |
fef3106c NB |
707 | |
708 | d | |
709 | C ObjC C++ ObjC++ Joined | |
72de27ea | 710 | ; Documented in common.opt. FIXME - what about -dI, -dD, -dN and -dD? |
fef3106c | 711 | |
fef3106c | 712 | faccess-control |
5498f011 | 713 | C++ ObjC++ Var(flag_access_control) Init(1) |
bae92bf3 | 714 | Enforce class member access control semantics |
fef3106c NB |
715 | |
716 | fall-virtual | |
2d2bd949 | 717 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 718 | |
6637388f TG |
719 | fallow-parameterless-variadic-functions |
720 | C ObjC Var(flag_allow_parameterless_variadic_functions) | |
721 | Allow variadic functions without named parameter | |
722 | ||
fef3106c | 723 | falt-external-templates |
2d2bd949 | 724 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 725 | No longer supported |
fef3106c NB |
726 | |
727 | fasm | |
5498f011 | 728 | C ObjC C++ ObjC++ Var(flag_no_asm, 0) |
5a170a05 | 729 | Recognize the \"asm\" keyword |
fef3106c | 730 | |
10e48e39 RO |
731 | ; Define extra predefined macros for use in libgcc. |
732 | fbuilding-libgcc | |
733 | C ObjC C++ ObjC++ Undocumented Var(flag_building_libgcc) | |
734 | ||
fef3106c | 735 | fbuiltin |
5498f011 | 736 | C ObjC C++ ObjC++ Var(flag_no_builtin, 0) |
5a170a05 | 737 | Recognize built-in functions |
fef3106c NB |
738 | |
739 | fbuiltin- | |
740 | C ObjC C++ ObjC++ Joined | |
741 | ||
742 | fcheck-new | |
5498f011 | 743 | C++ ObjC++ Var(flag_check_new) |
bae92bf3 | 744 | Check the return value of new |
fef3106c NB |
745 | |
746 | fcond-mismatch | |
747 | C ObjC C++ ObjC++ | |
5a170a05 | 748 | Allow the arguments of the '?' operator to have different types |
fef3106c NB |
749 | |
750 | fconserve-space | |
5498f011 | 751 | C++ ObjC++ Var(flag_conserve_space) |
bae92bf3 | 752 | Reduce the size of object files |
fef3106c | 753 | |
fef3106c | 754 | fconstant-string-class= |
61ff2bdc | 755 | ObjC ObjC++ Joined MissingArgError(no class name specified with %qs) |
f2ac9964 | 756 | -fconst-string-class=<name> Use class <name> for constant strings |
fef3106c | 757 | |
17bc631c | 758 | fconstexpr-depth= |
49a000c3 JM |
759 | C++ ObjC++ Joined RejectNegative UInteger Var(max_constexpr_depth) Init(512) |
760 | -fconstexpr-depth=<number> Specify maximum constexpr recursion depth | |
17bc631c | 761 | |
847e697a TT |
762 | fdebug-cpp |
763 | C ObjC C++ ObjC++ | |
764 | Emit debug annotations during preprocessing | |
765 | ||
5f5babf1 | 766 | fdeduce-init-list |
15694fdd JM |
767 | C++ ObjC++ Var(flag_deduce_init_list) Init(0) |
768 | -fdeduce-init-list enable deduction of std::initializer_list for a template type parameter from a brace-enclosed initializer-list | |
5f5babf1 | 769 | |
fef3106c | 770 | fdefault-inline |
2d2bd949 | 771 | C++ ObjC++ Ignore |
5498f011 | 772 | Does nothing. Preserved for backward compatibility. |
fef3106c | 773 | |
ccfc4c91 OW |
774 | fdirectives-only |
775 | C ObjC C++ ObjC++ | |
776 | Preprocess directives only. | |
777 | ||
fef3106c NB |
778 | fdollars-in-identifiers |
779 | C ObjC C++ ObjC++ | |
72de27ea | 780 | Permit '$' as an identifier character |
fef3106c | 781 | |
fef3106c | 782 | felide-constructors |
5498f011 | 783 | C++ ObjC++ Var(flag_elide_constructors) Init(1) |
fef3106c NB |
784 | |
785 | fenforce-eh-specs | |
5498f011 | 786 | C++ ObjC++ Var(flag_enforce_eh_specs) Init(1) |
bae92bf3 | 787 | Generate code to check exception specifications |
fef3106c NB |
788 | |
789 | fenum-int-equiv | |
2d2bd949 | 790 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 791 | |
e6cc3a24 ZW |
792 | fexec-charset= |
793 | C ObjC C++ ObjC++ Joined RejectNegative | |
72de27ea | 794 | -fexec-charset=<cset> Convert all strings and character constants to character set <cset> |
e6cc3a24 | 795 | |
af15a2fe JM |
796 | fextended-identifiers |
797 | C ObjC C++ ObjC++ | |
798 | Permit universal character names (\\u and \\U) in identifiers | |
799 | ||
16dd5cfe EC |
800 | finput-charset= |
801 | C ObjC C++ ObjC++ Joined RejectNegative | |
c85ce869 | 802 | -finput-charset=<cset> Specify the default character set for source files |
16dd5cfe EC |
803 | |
804 | ||
fef3106c | 805 | fexternal-templates |
2d2bd949 | 806 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 807 | |
fef3106c | 808 | ffor-scope |
5498f011 | 809 | C++ ObjC++ Var(flag_new_for_scope) Init(1) |
bae92bf3 | 810 | Scope of for-init-statement variables is local to the loop |
fef3106c NB |
811 | |
812 | ffreestanding | |
820b51ae | 813 | C ObjC C++ ObjC++ |
5a170a05 | 814 | Do not assume that standard C libraries and \"main\" exist |
fef3106c NB |
815 | |
816 | fgnu-keywords | |
5498f011 | 817 | C++ ObjC++ Var(flag_no_gnu_keywords, 0) |
bae92bf3 | 818 | Recognize GNU-defined keywords |
fef3106c NB |
819 | |
820 | fgnu-runtime | |
fea3ca91 | 821 | ObjC ObjC++ Report RejectNegative Var(flag_next_runtime,0) Init(NEXT_OBJC_RUNTIME) |
f2ac9964 | 822 | Generate code for GNU runtime environment |
fef3106c | 823 | |
da1c7394 | 824 | fgnu89-inline |
2cbac420 | 825 | C ObjC Var(flag_gnu89_inline) Init(-1) |
da1c7394 ILT |
826 | Use traditional GNU semantics for inline functions |
827 | ||
fef3106c | 828 | fguiding-decls |
2d2bd949 | 829 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
830 | |
831 | fhandle-exceptions | |
2d2bd949 | 832 | C++ ObjC++ Optimization Alias(fexceptions) Warn({-fhandle-exceptions has been renamed -fexceptions (and is now on by default)}) |
fef3106c NB |
833 | |
834 | fhonor-std | |
2d2bd949 | 835 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
836 | |
837 | fhosted | |
838 | C ObjC | |
5a170a05 | 839 | Assume normal C execution environment |
fef3106c NB |
840 | |
841 | fhuge-objects | |
2d2bd949 | 842 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 843 | No longer supported |
fef3106c NB |
844 | |
845 | fimplement-inlines | |
5498f011 | 846 | C++ ObjC++ Var(flag_implement_inlines) Init(1) |
bae92bf3 | 847 | Export functions even if they can be inlined |
fef3106c NB |
848 | |
849 | fimplicit-inline-templates | |
5498f011 | 850 | C++ ObjC++ Var(flag_implicit_inline_templates) Init(1) |
bae92bf3 | 851 | Emit implicit instantiations of inline templates |
fef3106c NB |
852 | |
853 | fimplicit-templates | |
5498f011 | 854 | C++ ObjC++ Var(flag_implicit_templates) Init(1) |
bae92bf3 | 855 | Emit implicit instantiations of templates |
fef3106c | 856 | |
d63d5d0c | 857 | ffriend-injection |
2cbac420 | 858 | C++ ObjC++ Var(flag_friend_injection) |
d63d5d0c ILT |
859 | Inject friend functions into enclosing namespace |
860 | ||
47ea1edf DK |
861 | fkeep-inline-dllexport |
862 | C C++ ObjC ObjC++ Var(flag_keep_inline_dllexport) Init(1) Report Condition(TARGET_DLLIMPORT_DECL_ATTRIBUTES) | |
863 | Don't emit dllexported inline functions unless needed | |
864 | ||
fef3106c | 865 | flabels-ok |
2d2bd949 | 866 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 867 | |
00c8e9f6 | 868 | flax-vector-conversions |
5498f011 | 869 | C ObjC C++ ObjC++ Var(flag_lax_vector_conversions) |
00c8e9f6 MS |
870 | Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types. |
871 | ||
fef3106c | 872 | fms-extensions |
5498f011 | 873 | C ObjC C++ ObjC++ Var(flag_ms_extensions) |
bae92bf3 | 874 | Don't warn about uses of Microsoft extensions |
fef3106c | 875 | |
5720c0dc RG |
876 | fmudflap |
877 | C ObjC C++ ObjC++ RejectNegative Report Var(flag_mudflap) | |
878 | Add mudflap bounds-checking instrumentation for single-threaded program | |
879 | ||
880 | fmudflapth | |
881 | C ObjC C++ ObjC++ RejectNegative Report Var(flag_mudflap,2) | |
882 | Add mudflap bounds-checking instrumentation for multi-threaded program | |
883 | ||
884 | fmudflapir | |
885 | C ObjC C++ ObjC++ RejectNegative Report Var(flag_mudflap_ignore_reads) | |
886 | Ignore read operations when inserting mudflap instrumentation | |
887 | ||
fef3106c | 888 | fname-mangling-version- |
2d2bd949 | 889 | C++ ObjC++ Joined Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
890 | |
891 | fnew-abi | |
2d2bd949 | 892 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
893 | |
894 | fnext-runtime | |
fea3ca91 | 895 | ObjC ObjC++ Report RejectNegative Var(flag_next_runtime) |
264fa2db ZL |
896 | Generate code for NeXT (Apple Mac OS X) runtime environment |
897 | ||
898 | fnil-receivers | |
5498f011 | 899 | ObjC ObjC++ Var(flag_nil_receivers) Init(1) |
264fa2db | 900 | Assume that receivers of Objective-C messages may be nil |
fef3106c NB |
901 | |
902 | fnonansi-builtins | |
5498f011 | 903 | C++ ObjC++ Var(flag_no_nonansi_builtin, 0) |
fef3106c NB |
904 | |
905 | fnonnull-objects | |
2d2bd949 | 906 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 907 | |
9feb3d6a JM |
908 | fnothrow-opt |
909 | C++ ObjC++ Optimization Var(flag_nothrow_opt) | |
910 | Treat a throw() exception specification as noexcept to improve code size | |
911 | ||
0a256240 NP |
912 | fobjc-abi-version= |
913 | ObjC ObjC++ Joined Report RejectNegative UInteger Var(flag_objc_abi) | |
914 | Specify which ABI to use for Objective-C family code and meta-data generation. | |
915 | ||
6e955430 ZL |
916 | ; Generate special '- .cxx_construct' and '- .cxx_destruct' methods |
917 | ; to initialize any non-POD ivars in Objective-C++ classes. | |
918 | fobjc-call-cxx-cdtors | |
919 | ObjC++ Var(flag_objc_call_cxx_cdtors) | |
920 | Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed | |
921 | ||
922 | fobjc-direct-dispatch | |
923 | ObjC ObjC++ Var(flag_objc_direct_dispatch) | |
924 | Allow fast jumps to the message dispatcher | |
925 | ||
926 | ; Nonzero means that we will allow new ObjC exception syntax (@throw, | |
927 | ; @try, etc.) in source code. | |
264fa2db | 928 | fobjc-exceptions |
6e955430 | 929 | ObjC ObjC++ Var(flag_objc_exceptions) |
264fa2db ZL |
930 | Enable Objective-C exception and synchronization syntax |
931 | ||
6e955430 ZL |
932 | fobjc-gc |
933 | ObjC ObjC++ Var(flag_objc_gc) | |
934 | Enable garbage collection (GC) in Objective-C/Objective-C++ programs | |
935 | ||
0a256240 NP |
936 | fobjc-nilcheck |
937 | ObjC ObjC++ Var(flag_objc_nilcheck,1) | |
938 | Enable inline checks for nil receivers with the NeXT runtime and ABI version 2. | |
939 | ||
6e955430 | 940 | ; Nonzero means that we generate NeXT setjmp based exceptions. |
093c7153 | 941 | fobjc-sjlj-exceptions |
6e955430 | 942 | ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1) |
093c7153 RH |
943 | Enable Objective-C setjmp exception handling runtime |
944 | ||
22d8d616 NP |
945 | fobjc-std=objc1 |
946 | ObjC ObjC++ Var(flag_objc1_only) | |
947 | Conform to the Objective-C 1.0 language as implemented in GCC 4.0 | |
948 | ||
953ff289 DN |
949 | fopenmp |
950 | C ObjC C++ ObjC++ Var(flag_openmp) | |
9a0f3e86 | 951 | Enable OpenMP (implies -frecursive in Fortran) |
953ff289 | 952 | |
fef3106c NB |
953 | foperator-names |
954 | C++ ObjC++ | |
1cbc62c0 | 955 | Recognize C++ keywords like \"compl\" and \"xor\" |
fef3106c NB |
956 | |
957 | foptional-diags | |
2d2bd949 | 958 | C++ ObjC++ Ignore |
5498f011 | 959 | Does nothing. Preserved for backward compatibility. |
fef3106c NB |
960 | |
961 | fpch-deps | |
962 | C ObjC C++ ObjC++ | |
963 | ||
c0d578e6 GK |
964 | fpch-preprocess |
965 | C ObjC C++ ObjC++ | |
966 | Look for and use PCH files even when preprocessing | |
967 | ||
fef3106c NB |
968 | fpermissive |
969 | C++ ObjC++ | |
bae92bf3 | 970 | Downgrade conformance errors to warnings |
fef3106c | 971 | |
478a1c5b ILT |
972 | fplan9-extensions |
973 | C ObjC Var(flag_plan9_extensions) | |
974 | Enable Plan 9 language extensions | |
975 | ||
fef3106c NB |
976 | fpreprocessed |
977 | C ObjC C++ ObjC++ | |
72de27ea | 978 | Treat the input file as already preprocessed |
fef3106c | 979 | |
92582b75 TT |
980 | ftrack-macro-expansion |
981 | C ObjC C++ ObjC++ JoinedOrMissing RejectNegative UInteger | |
982 | ; converted into ftrack-macro-expansion= | |
983 | ||
984 | ftrack-macro-expansion= | |
985 | C ObjC C++ ObjC++ JoinedOrMissing RejectNegative UInteger | |
986 | -ftrack-macro-expansion=<0|1|2> Track locations of tokens coming from macro expansion and display them in error messages | |
987 | ||
6ea2bd47 | 988 | fpretty-templates |
5498f011 | 989 | C++ ObjC++ Var(flag_pretty_templates) Init(1) |
6ea2bd47 JM |
990 | -fno-pretty-templates Do not pretty-print template specializations as the template signature followed by the arguments |
991 | ||
264fa2db | 992 | freplace-objc-classes |
5498f011 | 993 | ObjC ObjC++ Var(flag_replace_objc_classes) |
264fa2db ZL |
994 | Used in Fix-and-Continue mode to indicate that object files may be swapped in at runtime |
995 | ||
fef3106c NB |
996 | frepo |
997 | C++ ObjC++ | |
bae92bf3 | 998 | Enable automatic template instantiation |
fef3106c NB |
999 | |
1000 | frtti | |
5498f011 | 1001 | C++ ObjC++ Optimization Var(flag_rtti) Init(1) |
bae92bf3 | 1002 | Generate run time type descriptor information |
fef3106c NB |
1003 | |
1004 | fshort-double | |
5498f011 | 1005 | C ObjC C++ ObjC++ Optimization Var(flag_short_double) |
5a170a05 | 1006 | Use the same size for double as for float |
fef3106c NB |
1007 | |
1008 | fshort-enums | |
5498f011 | 1009 | C ObjC C++ ObjC++ Optimization Var(flag_short_enums) |
5a170a05 | 1010 | Use the narrowest integer type possible for enumeration types |
fef3106c NB |
1011 | |
1012 | fshort-wchar | |
5498f011 | 1013 | C ObjC C++ ObjC++ Optimization Var(flag_short_wchar) |
5a170a05 | 1014 | Force the underlying type for \"wchar_t\" to be \"unsigned short\" |
fef3106c | 1015 | |
fef3106c | 1016 | fsigned-bitfields |
5498f011 | 1017 | C ObjC C++ ObjC++ Var(flag_signed_bitfields) Init(1) |
5a170a05 | 1018 | When \"signed\" or \"unsigned\" is not given make the bitfield signed |
fef3106c NB |
1019 | |
1020 | fsigned-char | |
5498f011 | 1021 | C ObjC C++ ObjC++ LTO Var(flag_signed_char) |
5a170a05 | 1022 | Make \"char\" signed by default |
fef3106c NB |
1023 | |
1024 | fsquangle | |
2d2bd949 | 1025 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
1026 | |
1027 | fstats | |
5498f011 | 1028 | C++ ObjC++ Var(flag_detailed_statistics) |
bae92bf3 | 1029 | Display statistics accumulated during compilation |
fef3106c | 1030 | |
cbb4feb3 JM |
1031 | fstrict-enums |
1032 | C++ ObjC++ Optimization Var(flag_strict_enums) | |
1033 | Assume that values of enumeration type are always within the minimum range of that type | |
1034 | ||
fef3106c | 1035 | fstrict-prototype |
2d2bd949 | 1036 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
1037 | |
1038 | ftabstop= | |
7b086b11 | 1039 | C ObjC C++ ObjC++ Joined RejectNegative UInteger |
72de27ea | 1040 | -ftabstop=<number> Distance between tab stops for column reporting |
fef3106c | 1041 | |
a12bf402 MLI |
1042 | ftemplate-backtrace-limit= |
1043 | C++ ObjC++ Joined RejectNegative UInteger Var(template_backtrace_limit) Init(10) | |
1044 | Set the maximum number of template instantiation notes for a single warning or error | |
1045 | ||
fef3106c | 1046 | ftemplate-depth- |
5de8299c | 1047 | C++ ObjC++ Joined RejectNegative Undocumented Alias(ftemplate-depth=) |
124e0d27 MLI |
1048 | |
1049 | ftemplate-depth= | |
c22cacf3 | 1050 | C++ ObjC++ Joined RejectNegative UInteger |
124e0d27 | 1051 | -ftemplate-depth=<number> Specify maximum template instantiation depth |
fef3106c NB |
1052 | |
1053 | fthis-is-variable | |
2d2bd949 | 1054 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 1055 | |
40aac948 | 1056 | fthreadsafe-statics |
5498f011 | 1057 | C++ ObjC++ Optimization Var(flag_threadsafe_statics) Init(1) |
c85ce869 | 1058 | -fno-threadsafe-statics Do not generate thread-safe code for initializing local statics |
40aac948 | 1059 | |
fef3106c | 1060 | funsigned-bitfields |
f0036cca | 1061 | C ObjC C++ ObjC++ Var(flag_signed_bitfields, 0) |
5a170a05 | 1062 | When \"signed\" or \"unsigned\" is not given make the bitfield unsigned |
fef3106c NB |
1063 | |
1064 | funsigned-char | |
f0036cca | 1065 | C ObjC C++ ObjC++ LTO Var(flag_signed_char, 0) |
5a170a05 | 1066 | Make \"char\" unsigned by default |
fef3106c NB |
1067 | |
1068 | fuse-cxa-atexit | |
5498f011 | 1069 | C++ ObjC++ Var(flag_use_cxa_atexit) Init(DEFAULT_USE_CXA_ATEXIT) |
bae92bf3 | 1070 | Use __cxa_atexit to register destructors |
fef3106c | 1071 | |
c7b5e395 | 1072 | fuse-cxa-get-exception-ptr |
5498f011 | 1073 | C++ ObjC++ Var(flag_use_cxa_get_exception_ptr) Init(2) |
c7b5e395 GK |
1074 | Use __cxa_get_exception_ptr in exception handling |
1075 | ||
d7afec4b | 1076 | fvisibility-inlines-hidden |
d0b07283 | 1077 | C++ ObjC++ |
fb9120e3 | 1078 | Marks all inlined functions and methods as having hidden visibility |
d7afec4b | 1079 | |
ddbfd28d GK |
1080 | fvisibility-ms-compat |
1081 | C++ ObjC++ Var(flag_visibility_ms_compat) | |
1082 | Changes visibility to match Microsoft Visual Studio by default | |
1083 | ||
fef3106c | 1084 | fvtable-gc |
2d2bd949 | 1085 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 1086 | No longer supported |
fef3106c NB |
1087 | |
1088 | fvtable-thunks | |
2d2bd949 | 1089 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 1090 | No longer supported |
fef3106c NB |
1091 | |
1092 | fweak | |
5498f011 | 1093 | C++ ObjC++ Var(flag_weak) Init(1) |
bae92bf3 | 1094 | Emit common-like symbols as weak symbols |
fef3106c | 1095 | |
e6cc3a24 ZW |
1096 | fwide-exec-charset= |
1097 | C ObjC C++ ObjC++ Joined RejectNegative | |
72de27ea | 1098 | -fwide-exec-charset=<cset> Convert all wide strings and character constants to character set <cset> |
e6cc3a24 | 1099 | |
b20d9f0c | 1100 | fworking-directory |
5498f011 | 1101 | C ObjC C++ ObjC++ Var(flag_working_directory) Init(-1) |
b20d9f0c AO |
1102 | Generate a #line directive pointing at the current working directory |
1103 | ||
fef3106c | 1104 | fxref |
2d2bd949 | 1105 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 1106 | No longer supported |
fef3106c | 1107 | |
264fa2db | 1108 | fzero-link |
5498f011 | 1109 | ObjC ObjC++ Var(flag_zero_link) |
264fa2db ZL |
1110 | Generate lazy class lookup (via objc_getClass()) for use in Zero-Link mode |
1111 | ||
fef3106c | 1112 | gen-decls |
5498f011 | 1113 | ObjC ObjC++ Var(flag_gen_declaration) |
f2ac9964 | 1114 | Dump declarations to a .decl file |
fef3106c | 1115 | |
39ef6592 LC |
1116 | femit-struct-debug-baseonly |
1117 | C ObjC C++ ObjC++ | |
1118 | -femit-struct-debug-baseonly Aggressive reduced debug info for structs | |
1119 | ||
1120 | femit-struct-debug-reduced | |
1121 | C ObjC C++ ObjC++ | |
1122 | -femit-struct-debug-reduced Conservative reduced debug info for structs | |
1123 | ||
1124 | femit-struct-debug-detailed= | |
1125 | C ObjC C++ ObjC++ Joined | |
1126 | -femit-struct-debug-detailed=<spec-list> Detailed reduced debug info for structs | |
1127 | ||
fef3106c | 1128 | idirafter |
61ff2bdc | 1129 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 1130 | -idirafter <dir> Add <dir> to the end of the system include path |
fef3106c NB |
1131 | |
1132 | imacros | |
61ff2bdc | 1133 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
72de27ea | 1134 | -imacros <file> Accept definition of macros in <file> |
fef3106c | 1135 | |
2b6dd222 JM |
1136 | imultilib |
1137 | C ObjC C++ ObjC++ Joined Separate | |
f94e1d66 | 1138 | -imultilib <dir> Set <dir> to be the multilib include subdirectory |
2b6dd222 | 1139 | |
fef3106c | 1140 | include |
61ff2bdc | 1141 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
72de27ea | 1142 | -include <file> Include the contents of <file> before other files |
fef3106c NB |
1143 | |
1144 | iprefix | |
1145 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1146 | -iprefix <path> Specify <path> as a prefix for next two options |
fef3106c NB |
1147 | |
1148 | isysroot | |
61ff2bdc | 1149 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 1150 | -isysroot <dir> Set <dir> to be the system root directory |
fef3106c NB |
1151 | |
1152 | isystem | |
61ff2bdc | 1153 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 1154 | -isystem <dir> Add <dir> to the start of the system include path |
fef3106c | 1155 | |
4bed3787 | 1156 | iquote |
61ff2bdc | 1157 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
4bed3787 MS |
1158 | -iquote <dir> Add <dir> to the end of the quote include path |
1159 | ||
fef3106c NB |
1160 | iwithprefix |
1161 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1162 | -iwithprefix <dir> Add <dir> to the end of the system include path |
fef3106c NB |
1163 | |
1164 | iwithprefixbefore | |
1165 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1166 | -iwithprefixbefore <dir> Add <dir> to the end of the main include path |
fef3106c NB |
1167 | |
1168 | lang-asm | |
603349bf | 1169 | C Undocumented RejectDriver |
fef3106c | 1170 | |
e200444e JM |
1171 | no-integrated-cpp |
1172 | Driver | |
1173 | ||
fef3106c NB |
1174 | nostdinc |
1175 | C ObjC C++ ObjC++ | |
72de27ea | 1176 | Do not search standard system include directories (those specified with -isystem will still be used) |
fef3106c NB |
1177 | |
1178 | nostdinc++ | |
72de27ea NB |
1179 | C++ ObjC++ |
1180 | Do not search standard system include directories for C++ | |
fef3106c NB |
1181 | |
1182 | o | |
1183 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1184 | ; Documented in common.opt |
fef3106c NB |
1185 | |
1186 | pedantic | |
1187 | C ObjC C++ ObjC++ | |
72de27ea | 1188 | ; Documented in common.opt |
fef3106c NB |
1189 | |
1190 | pedantic-errors | |
1191 | C ObjC C++ ObjC++ | |
72de27ea | 1192 | ; Documented in common.opt |
fef3106c NB |
1193 | |
1194 | print-objc-runtime-info | |
1195 | ObjC ObjC++ | |
f2ac9964 | 1196 | Generate C header of platform-specific features |
fef3106c NB |
1197 | |
1198 | remap | |
1199 | C ObjC C++ ObjC++ | |
72de27ea | 1200 | Remap file names when including files |
fef3106c NB |
1201 | |
1202 | std=c++98 | |
1203 | C++ ObjC++ | |
c7dc8804 JM |
1204 | Conform to the ISO 1998 C++ standard revised by the 2003 technical corrigendum |
1205 | ||
1206 | std=c++03 | |
1207 | C++ ObjC++ Alias(std=c++98) | |
1208 | Conform to the ISO 1998 C++ standard revised by the 2003 technical corrigendum | |
fef3106c | 1209 | |
97e3ad20 | 1210 | std=c++11 |
966541e3 | 1211 | C++ ObjC++ |
97e3ad20 JM |
1212 | Conform to the ISO 2011 C++ standard (experimental and incomplete support) |
1213 | ||
1214 | std=c++0x | |
1215 | C++ ObjC++ Alias(std=c++11) | |
1216 | Deprecated in favor of -std=c++11 | |
966541e3 | 1217 | |
48b0b196 | 1218 | std=c11 |
2778d766 | 1219 | C ObjC |
48b0b196 JM |
1220 | Conform to the ISO 2011 C standard (experimental and incomplete support) |
1221 | ||
1222 | std=c1x | |
1223 | C ObjC Alias(std=c11) | |
1224 | Deprecated in favor of -std=c11 | |
2778d766 | 1225 | |
fef3106c | 1226 | std=c89 |
5de8299c | 1227 | C ObjC Alias(std=c90) |
72de27ea | 1228 | Conform to the ISO 1990 C standard |
fef3106c | 1229 | |
7e1542b9 MLI |
1230 | std=c90 |
1231 | C ObjC | |
1232 | Conform to the ISO 1990 C standard | |
1233 | ||
fef3106c NB |
1234 | std=c99 |
1235 | C ObjC | |
72de27ea | 1236 | Conform to the ISO 1999 C standard |
fef3106c NB |
1237 | |
1238 | std=c9x | |
5de8299c | 1239 | C ObjC Alias(std=c99) |
72de27ea | 1240 | Deprecated in favor of -std=c99 |
fef3106c NB |
1241 | |
1242 | std=gnu++98 | |
1243 | C++ ObjC++ | |
97e3ad20 JM |
1244 | Conform to the ISO 1998 C++ standard revised by the 2003 technical |
1245 | corrigendum with GNU extensions | |
fef3106c | 1246 | |
97e3ad20 JM |
1247 | std=gnu++03 |
1248 | C++ ObjC++ Alias(std=gnu++98) | |
1249 | Conform to the ISO 1998 C++ standard revised by the 2003 technical | |
1250 | corrigendum with GNU extensions | |
1251 | ||
1252 | std=gnu++11 | |
966541e3 | 1253 | C++ ObjC++ |
97e3ad20 JM |
1254 | Conform to the ISO 2011 C++ standard with GNU extensions (experimental and incomplete support) |
1255 | ||
1256 | std=gnu++0x | |
1257 | C++ ObjC++ Alias(std=gnu++11) | |
1258 | Deprecated in favor of -std=gnu++11 | |
966541e3 | 1259 | |
48b0b196 | 1260 | std=gnu11 |
2778d766 | 1261 | C ObjC |
48b0b196 JM |
1262 | Conform to the ISO 2011 C standard with GNU extensions (experimental and incomplete support) |
1263 | ||
1264 | std=gnu1x | |
1265 | C ObjC Alias(std=gnu11) | |
1266 | Deprecated in favor of -std=gnu11 | |
2778d766 | 1267 | |
fef3106c | 1268 | std=gnu89 |
5de8299c | 1269 | C ObjC Alias(std=gnu90) |
72de27ea | 1270 | Conform to the ISO 1990 C standard with GNU extensions |
fef3106c | 1271 | |
7e1542b9 MLI |
1272 | std=gnu90 |
1273 | C ObjC | |
1274 | Conform to the ISO 1990 C standard with GNU extensions | |
1275 | ||
fef3106c NB |
1276 | std=gnu99 |
1277 | C ObjC | |
72de27ea | 1278 | Conform to the ISO 1999 C standard with GNU extensions |
fef3106c NB |
1279 | |
1280 | std=gnu9x | |
5de8299c | 1281 | C ObjC Alias(std=gnu99) |
72de27ea | 1282 | Deprecated in favor of -std=gnu99 |
fef3106c NB |
1283 | |
1284 | std=iso9899:1990 | |
5de8299c | 1285 | C ObjC Alias(std=c90) |
3a1e400e | 1286 | Conform to the ISO 1990 C standard |
fef3106c NB |
1287 | |
1288 | std=iso9899:199409 | |
1289 | C ObjC | |
72de27ea | 1290 | Conform to the ISO 1990 C standard as amended in 1994 |
fef3106c NB |
1291 | |
1292 | std=iso9899:1999 | |
5de8299c | 1293 | C ObjC Alias(std=c99) |
3a1e400e | 1294 | Conform to the ISO 1999 C standard |
fef3106c NB |
1295 | |
1296 | std=iso9899:199x | |
5de8299c | 1297 | C ObjC Alias(std=c99) |
3a1e400e | 1298 | Deprecated in favor of -std=iso9899:1999 |
fef3106c | 1299 | |
48b0b196 JM |
1300 | std=iso9899:2011 |
1301 | C ObjC Alias(std=c11) | |
1302 | Conform to the ISO 2011 C standard (experimental and incomplete support) | |
1303 | ||
e200444e JM |
1304 | traditional |
1305 | Driver | |
1306 | ||
fef3106c NB |
1307 | traditional-cpp |
1308 | C ObjC C++ ObjC++ | |
72de27ea | 1309 | Enable traditional preprocessing |
fef3106c NB |
1310 | |
1311 | trigraphs | |
1312 | C ObjC C++ ObjC++ | |
72de27ea | 1313 | -trigraphs Support ISO C trigraphs |
fef3106c NB |
1314 | |
1315 | undef | |
5498f011 | 1316 | C ObjC C++ ObjC++ Var(flag_undef) |
72de27ea | 1317 | Do not predefine system-specific and GCC-specific macros |
fef3106c NB |
1318 | |
1319 | v | |
d5478783 JM |
1320 | C ObjC C++ ObjC++ |
1321 | ; Documented in common.opt | |
fef3106c NB |
1322 | |
1323 | w | |
1324 | C ObjC C++ ObjC++ | |
72de27ea | 1325 | ; Documented in common.opt |
e11a4ae5 NB |
1326 | |
1327 | ; This comment is to ensure we retain the blank line above. |