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Commit | Line | Data |
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fef3106c | 1 | ; Options for the C, ObjC, C++ and ObjC++ front ends. |
47ea1edf DK |
2 | ; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, |
3 | ; 2011 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 |
61ff2bdc | 204 | 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 |
e1f1ee86 | 292 | Warn about C++ constructs whose meaning differs between ISO C++ 1998 and ISO C++ 200x |
b7e20b53 | 293 | |
fef3106c | 294 | Wcast-qual |
c662432e | 295 | C ObjC C++ ObjC++ Var(warn_cast_qual) Warning |
5a170a05 | 296 | Warn about casts which discard qualifiers |
fef3106c NB |
297 | |
298 | Wchar-subscripts | |
c662432e | 299 | C ObjC C++ ObjC++ Var(warn_char_subscripts) Warning |
5a170a05 | 300 | Warn about subscripts whose type is \"char\" |
fef3106c | 301 | |
2b001724 | 302 | Wclobbered |
c662432e | 303 | C ObjC C++ ObjC++ Var(warn_clobbered) Init(-1) Warning |
2b001724 MLI |
304 | Warn about variables that might be changed by \"longjmp\" or \"vfork\" |
305 | ||
fef3106c | 306 | Wcomment |
c662432e | 307 | C ObjC C++ ObjC++ Warning |
72de27ea | 308 | Warn about possibly nested block comments, and C++ comments spanning more than one physical line |
fef3106c NB |
309 | |
310 | Wcomments | |
5de8299c | 311 | C ObjC C++ ObjC++ Warning Alias(Wcomment) |
72de27ea | 312 | Synonym for -Wcomment |
fef3106c NB |
313 | |
314 | Wconversion | |
c662432e | 315 | C ObjC C++ ObjC++ Var(warn_conversion) Warning |
05170031 | 316 | Warn for implicit type conversions that may change a value |
fef3106c | 317 | |
17251338 MLI |
318 | Wconversion-null |
319 | C++ ObjC++ Var(warn_conversion_null) Init(1) Warning | |
320 | Warn for converting NULL from/to a non-pointer type | |
321 | ||
7060db96 MLI |
322 | Wsign-conversion |
323 | C ObjC C++ ObjC++ Var(warn_sign_conversion) Init(-1) | |
324 | Warn for implicit type conversions between signed and unsigned integers | |
325 | ||
fef3106c | 326 | Wctor-dtor-privacy |
c662432e | 327 | C++ ObjC++ Var(warn_ctor_dtor_privacy) Warning |
bae92bf3 | 328 | Warn when all constructors and destructors are private |
fef3106c | 329 | |
85617eba | 330 | Wdeclaration-after-statement |
c662432e | 331 | C ObjC Var(warn_declaration_after_statement) Warning |
85617eba HPN |
332 | Warn when a declaration is found after a statement |
333 | ||
fef3106c | 334 | Wdeprecated |
899015a0 | 335 | C C++ ObjC ObjC++ Var(warn_deprecated) Init(1) Warning |
9a0f3e86 | 336 | Warn if a deprecated compiler feature, class, method, or field is used |
fef3106c NB |
337 | |
338 | Wdiv-by-zero | |
2cbac420 | 339 | C ObjC C++ ObjC++ Var(warn_div_by_zero) Init(1) Warning |
5a170a05 | 340 | Warn about compile-time integer division by zero |
fef3106c NB |
341 | |
342 | Weffc++ | |
c662432e | 343 | C++ ObjC++ Var(warn_ecpp) Warning |
bae92bf3 | 344 | Warn about violations of Effective C++ style rules |
fef3106c | 345 | |
b3b433c5 | 346 | Wempty-body |
c662432e | 347 | C ObjC C++ ObjC++ Var(warn_empty_body) Init(-1) Warning |
b3b433c5 MLI |
348 | Warn about an empty body in an if or else statement |
349 | ||
fef3106c | 350 | Wendif-labels |
c662432e | 351 | C ObjC C++ ObjC++ Warning |
72de27ea | 352 | Warn about stray tokens after #elif and #endif |
fef3106c | 353 | |
a3299096 | 354 | Wenum-compare |
6866c6e8 | 355 | C ObjC C++ ObjC++ Var(warn_enum_compare) Init(-1) Warning |
a3299096 MM |
356 | Warn about comparison of different enum types |
357 | ||
fef3106c NB |
358 | Werror |
359 | C ObjC C++ ObjC++ | |
72de27ea | 360 | ; Documented in common.opt |
fef3106c NB |
361 | |
362 | Werror-implicit-function-declaration | |
5de8299c | 363 | C ObjC RejectNegative Warning Alias(Werror=, implicit-function-declaration) |
dc90f45b | 364 | This switch is deprecated; use -Werror=implicit-function-declaration instead |
fef3106c NB |
365 | |
366 | Wfloat-equal | |
c662432e | 367 | C ObjC C++ ObjC++ Var(warn_float_equal) Warning |
5a170a05 | 368 | Warn if testing floating point numbers for equality |
fef3106c NB |
369 | |
370 | Wformat | |
c662432e | 371 | C ObjC C++ ObjC++ Warning |
5a170a05 | 372 | Warn about printf/scanf/strftime/strfmon format string anomalies |
fef3106c NB |
373 | |
374 | Wformat-extra-args | |
c662432e | 375 | C ObjC C++ ObjC++ Var(warn_format_extra_args) Warning |
5a170a05 | 376 | Warn if passing too many arguments to a function for its format string |
fef3106c NB |
377 | |
378 | Wformat-nonliteral | |
c662432e | 379 | C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning |
5a170a05 | 380 | Warn about format strings that are not literals |
fef3106c | 381 | |
ca178f85 | 382 | Wformat-contains-nul |
6d16b6e7 | 383 | C ObjC C++ ObjC++ Var(warn_format_contains_nul) Warning |
ca178f85 BK |
384 | Warn about format strings that contain NUL bytes |
385 | ||
fef3106c | 386 | Wformat-security |
c662432e | 387 | C ObjC C++ ObjC++ Var(warn_format_security) Warning |
5a170a05 | 388 | Warn about possible security problems with format functions |
fef3106c NB |
389 | |
390 | Wformat-y2k | |
c662432e | 391 | C ObjC C++ ObjC++ Var(warn_format_y2k) Warning |
5a170a05 | 392 | Warn about strftime formats yielding 2-digit years |
fef3106c NB |
393 | |
394 | Wformat-zero-length | |
c662432e | 395 | C ObjC Var(warn_format_zero_length) Warning |
7619c085 | 396 | Warn about zero-length formats |
fef3106c NB |
397 | |
398 | Wformat= | |
c662432e | 399 | C ObjC C++ ObjC++ Joined Warning |
fef3106c | 400 | |
5db2e9ca DK |
401 | Wignored-qualifiers |
402 | C C++ Var(warn_ignored_qualifiers) Init(-1) Warning | |
403 | Warn whenever type qualifiers are ignored. | |
404 | ||
3390f9c9 | 405 | Winit-self |
c662432e | 406 | C ObjC C++ ObjC++ Var(warn_init_self) Warning |
ab532386 | 407 | Warn about variables which are initialized to themselves |
3390f9c9 | 408 | |
fef3106c | 409 | Wimplicit |
3734d960 MLI |
410 | C ObjC Var(warn_implicit) Init(-1) Warning |
411 | Warn about implicit declarations | |
fef3106c | 412 | |
0a0b3574 MM |
413 | Wdouble-promotion |
414 | C ObjC C++ ObjC++ Var(warn_double_promotion) Warning | |
415 | Warn about implicit conversions from \"float\" to \"double\" | |
416 | ||
fef3106c | 417 | Wimplicit-function-declaration |
dc90f45b | 418 | C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning |
5a170a05 | 419 | Warn about implicit function declarations |
fef3106c NB |
420 | |
421 | Wimplicit-int | |
3734d960 | 422 | C ObjC Var(warn_implicit_int) Init(-1) Warning |
5a170a05 | 423 | Warn when a declaration does not specify a type |
fef3106c NB |
424 | |
425 | Wimport | |
2d2bd949 | 426 | C ObjC C++ ObjC++ Undocumented Ignore |
fef3106c | 427 | |
53a2494e | 428 | Wint-to-pointer-cast |
dc8d2739 | 429 | C ObjC C++ ObjC++ Var(warn_int_to_pointer_cast) Init(1) Warning |
53a2494e JM |
430 | Warn when there is a cast to a pointer from an integer of a different size |
431 | ||
fef3106c | 432 | Winvalid-offsetof |
c662432e | 433 | C++ ObjC++ Var(warn_invalid_offsetof) Init(1) Warning |
bae92bf3 | 434 | Warn about invalid uses of the \"offsetof\" macro |
fef3106c NB |
435 | |
436 | Winvalid-pch | |
c662432e | 437 | C ObjC C++ ObjC++ Warning |
5a170a05 | 438 | Warn about PCH files that are found but not used |
fef3106c | 439 | |
e1b7793c | 440 | Wjump-misses-init |
da667743 | 441 | C ObjC Var(warn_jump_misses_init) Init(-1) Warning |
e1b7793c ILT |
442 | Warn when a jump misses a variable initialization |
443 | ||
ca409efd | 444 | Wlogical-op |
7bb27074 | 445 | C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning |
ca409efd MLI |
446 | Warn when a logical operator is suspiciously always evaluating to true or false |
447 | ||
fef3106c | 448 | Wlong-long |
9c650d90 | 449 | C ObjC C++ ObjC++ Var(warn_long_long) Init(-1) Warning |
5a170a05 | 450 | Do not warn about using \"long long\" when -pedantic |
fef3106c NB |
451 | |
452 | Wmain | |
4003301d | 453 | C ObjC C++ ObjC++ Var(warn_main) Init(-1) Warning |
5a170a05 | 454 | Warn about suspicious declarations of \"main\" |
fef3106c NB |
455 | |
456 | Wmissing-braces | |
c662432e | 457 | C ObjC C++ ObjC++ Var(warn_missing_braces) Warning |
5a170a05 | 458 | Warn about possibly missing braces around initializers |
fef3106c NB |
459 | |
460 | Wmissing-declarations | |
c662432e | 461 | C ObjC C++ ObjC++ Var(warn_missing_declarations) Warning |
5a170a05 | 462 | Warn about global functions without previous declarations |
fef3106c | 463 | |
eaac4679 | 464 | Wmissing-field-initializers |
c662432e | 465 | C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1) Warning |
eaac4679 RS |
466 | Warn about missing fields in struct initializers |
467 | ||
fef3106c | 468 | Wmissing-format-attribute |
c662432e | 469 | C ObjC C++ ObjC++ Var(warn_missing_format_attribute) Warning |
5a170a05 | 470 | Warn about functions which might be candidates for format attributes |
fef3106c | 471 | |
b02398bd | 472 | Wmissing-include-dirs |
c662432e | 473 | C ObjC C++ ObjC++ Warning |
b02398bd BE |
474 | Warn about user-specified include directories that do not exist |
475 | ||
cb4af25a | 476 | Wmissing-parameter-type |
c662432e | 477 | C ObjC Var(warn_missing_parameter_type) Init(-1) Warning |
cb4af25a MLI |
478 | Warn about function parameters declared without a type specifier in K&R-style functions |
479 | ||
fef3106c | 480 | Wmissing-prototypes |
c662432e | 481 | C ObjC Var(warn_missing_prototypes) Warning |
5a170a05 | 482 | Warn about global functions without prototypes |
fef3106c NB |
483 | |
484 | Wmultichar | |
c662432e | 485 | C ObjC C++ ObjC++ Warning |
5a170a05 | 486 | Warn about use of multi-character character constants |
fef3106c NB |
487 | |
488 | Wnested-externs | |
c662432e | 489 | C ObjC Var(warn_nested_externs) Warning |
5a170a05 | 490 | Warn about \"extern\" declarations not at file scope |
fef3106c | 491 | |
59f9c2ed JM |
492 | Wnoexcept |
493 | C++ ObjC++ Var(warn_noexcept) Warning | |
3c820dcd | 494 | Warn when a noexcept expression evaluates to false even though the expression can't actually throw |
59f9c2ed | 495 | |
fef3106c | 496 | Wnon-template-friend |
c662432e | 497 | C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warning |
bae92bf3 | 498 | Warn when non-templatized friend functions are declared within a template |
fef3106c NB |
499 | |
500 | Wnon-virtual-dtor | |
c662432e | 501 | C++ ObjC++ Var(warn_nonvdtor) Warning |
bae92bf3 | 502 | Warn about non-virtual destructors |
fef3106c NB |
503 | |
504 | Wnonnull | |
c662432e | 505 | C ObjC Var(warn_nonnull) Warning |
7619c085 | 506 | Warn about NULL being passed to argument slots marked as requiring non-NULL |
fef3106c | 507 | |
50668cf6 | 508 | Wnormalized= |
c662432e | 509 | C ObjC C++ ObjC++ Joined Warning |
50668cf6 GK |
510 | -Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings |
511 | ||
fef3106c | 512 | Wold-style-cast |
c662432e | 513 | C++ ObjC++ Var(warn_old_style_cast) Warning |
bae92bf3 | 514 | Warn if a C-style cast is used in a program |
fef3106c | 515 | |
b1ed4cb4 | 516 | Wold-style-declaration |
c662432e | 517 | C ObjC Var(warn_old_style_declaration) Init(-1) Warning |
b1ed4cb4 MLI |
518 | Warn for obsolescent usage in a declaration |
519 | ||
c034f121 | 520 | Wold-style-definition |
c662432e | 521 | C ObjC Var(warn_old_style_definition) Warning |
c034f121 AJ |
522 | Warn if an old-style parameter definition is used |
523 | ||
89a42ac8 | 524 | Woverlength-strings |
c662432e | 525 | C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1) Warning |
89a42ac8 ZW |
526 | Warn if a string is longer than the maximum portable length specified by the standard |
527 | ||
fef3106c | 528 | Woverloaded-virtual |
c662432e | 529 | C++ ObjC++ Var(warn_overloaded_virtual) Warning |
bae92bf3 | 530 | Warn about overloaded virtual function names |
fef3106c | 531 | |
7ed322d7 | 532 | Woverride-init |
c662432e | 533 | C ObjC Var(warn_override_init) Init(-1) Warning |
7ed322d7 JM |
534 | Warn about overriding initializers without side effects |
535 | ||
2cd36c22 | 536 | Wpacked-bitfield-compat |
bee6fa6d | 537 | C ObjC C++ ObjC++ Var(warn_packed_bitfield_compat) Init(-1) Warning |
2cd36c22 AN |
538 | Warn about packed bit-fields whose offset changed in GCC 4.4 |
539 | ||
fef3106c | 540 | Wparentheses |
c662432e | 541 | C ObjC C++ ObjC++ Var(warn_parentheses) Warning |
5a170a05 | 542 | Warn about possibly missing parentheses |
fef3106c NB |
543 | |
544 | Wpmf-conversions | |
c662432e | 545 | C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning |
bae92bf3 | 546 | Warn when converting the type of pointers to member functions |
fef3106c NB |
547 | |
548 | Wpointer-arith | |
c662432e | 549 | C ObjC C++ ObjC++ Var(warn_pointer_arith) Warning |
5a170a05 | 550 | Warn about function pointer arithmetic |
fef3106c | 551 | |
53a2494e | 552 | Wpointer-to-int-cast |
c662432e | 553 | C ObjC Var(warn_pointer_to_int_cast) Init(1) Warning |
53a2494e JM |
554 | Warn when a pointer is cast to an integer of a different size |
555 | ||
b9b8dde3 | 556 | Wpragmas |
c662432e | 557 | C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) Warning |
b9b8dde3 DD |
558 | Warn about misuses of pragmas |
559 | ||
9a179d01 NP |
560 | Wproperty-assign-default |
561 | ObjC ObjC++ Var(warn_property_assign_default) Init(1) Warning | |
562 | Warn if a property for an Objective-C object has no assign semantics specified | |
563 | ||
fef3106c | 564 | Wprotocol |
c662432e | 565 | ObjC ObjC++ Var(warn_protocol) Init(1) Warning |
f2ac9964 | 566 | Warn if inherited methods are unimplemented |
fef3106c NB |
567 | |
568 | Wredundant-decls | |
c662432e | 569 | C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning |
5a170a05 | 570 | Warn about multiple declarations of the same object |
fef3106c NB |
571 | |
572 | Wreorder | |
c662432e | 573 | C++ ObjC++ Var(warn_reorder) Warning |
bae92bf3 | 574 | Warn when the compiler reorders code |
fef3106c NB |
575 | |
576 | Wreturn-type | |
c662432e | 577 | C ObjC C++ ObjC++ Var(warn_return_type) Warning |
bae92bf3 | 578 | Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++) |
fef3106c NB |
579 | |
580 | Wselector | |
c662432e | 581 | ObjC ObjC++ Var(warn_selector) Warning |
f2ac9964 | 582 | Warn if a selector has multiple methods |
fef3106c NB |
583 | |
584 | Wsequence-point | |
c662432e | 585 | C ObjC C++ ObjC++ Var(warn_sequence_point) Warning |
5a170a05 | 586 | Warn about possible violations of sequence point rules |
fef3106c NB |
587 | |
588 | Wsign-compare | |
c662432e | 589 | C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1) Warning |
5a170a05 | 590 | Warn about signed-unsigned comparisons |
fef3106c NB |
591 | |
592 | Wsign-promo | |
c662432e | 593 | C++ ObjC++ Var(warn_sign_promo) Warning |
bae92bf3 | 594 | Warn when overload promotes from unsigned to signed |
fef3106c | 595 | |
b2f97e4a | 596 | Wstrict-null-sentinel |
5498f011 | 597 | C++ ObjC++ Warning Var(warn_strict_null_sentinel) |
b2f97e4a MM |
598 | Warn about uncasted NULL used as sentinel |
599 | ||
fef3106c | 600 | Wstrict-prototypes |
c662432e | 601 | C ObjC Var(warn_strict_prototypes) Warning |
5a170a05 | 602 | Warn about unprototyped function declarations |
fef3106c | 603 | |
6e955430 | 604 | Wstrict-selector-match |
c662432e | 605 | ObjC ObjC++ Var(warn_strict_selector_match) Warning |
6e955430 ZL |
606 | Warn if type signatures of candidate methods do not match exactly |
607 | ||
23462d4d UB |
608 | Wsync-nand |
609 | C C++ Var(warn_sync_nand) Init(1) Warning | |
610 | Warn when __sync_fetch_and_nand and __sync_nand_and_fetch built-in functions are used | |
611 | ||
fef3106c | 612 | Wsynth |
c662432e | 613 | C++ ObjC++ Var(warn_synth) Warning |
802e3f8c | 614 | Deprecated. This switch has no effect |
fef3106c NB |
615 | |
616 | Wsystem-headers | |
c662432e | 617 | C ObjC C++ ObjC++ Warning |
9a0f3e86 | 618 | ; Documented in common.opt |
fef3106c NB |
619 | |
620 | Wtraditional | |
c662432e | 621 | C ObjC Var(warn_traditional) Warning |
72de27ea | 622 | Warn about features not present in traditional C |
fef3106c | 623 | |
05170031 | 624 | Wtraditional-conversion |
c662432e | 625 | C ObjC Var(warn_traditional_conversion) Warning |
05170031 MLI |
626 | Warn of prototypes causing type conversions different from what would happen in the absence of prototype |
627 | ||
fef3106c | 628 | Wtrigraphs |
c662432e | 629 | C ObjC C++ ObjC++ Warning |
72de27ea | 630 | Warn if trigraphs are encountered that might affect the meaning of the program |
fef3106c NB |
631 | |
632 | Wundeclared-selector | |
c662432e | 633 | ObjC ObjC++ Var(warn_undeclared_selector) Warning |
7619c085 | 634 | Warn about @selector()s without previously declared methods |
fef3106c NB |
635 | |
636 | Wundef | |
c662432e | 637 | C ObjC C++ ObjC++ Warning |
72de27ea | 638 | Warn if an undefined macro is used in an #if directive |
fef3106c NB |
639 | |
640 | Wunknown-pragmas | |
c662432e | 641 | C ObjC C++ ObjC++ Warning |
5a170a05 | 642 | Warn about unrecognized pragmas |
fef3106c | 643 | |
6ec637a4 JJ |
644 | Wunsuffixed-float-constants |
645 | C ObjC Var(warn_unsuffixed_float_constants) Warning | |
646 | Warn about unsuffixed float constants | |
647 | ||
fef3106c | 648 | Wunused-macros |
c662432e | 649 | C ObjC C++ ObjC++ Warning |
72de27ea | 650 | Warn about macros defined in the main file that are not used |
fef3106c | 651 | |
156f545a MLI |
652 | Wunused-result |
653 | C ObjC C++ ObjC++ Var(warn_unused_result) Init(1) Warning | |
654 | Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value | |
655 | ||
e5b79219 | 656 | Wvariadic-macros |
c662432e | 657 | C ObjC C++ ObjC++ Warning |
e5b79219 RH |
658 | Do not warn about using variadic macros when -pedantic |
659 | ||
50d50fc7 SP |
660 | Wvla |
661 | C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning | |
662 | Warn if a variable length array is used | |
663 | ||
16302daf MLI |
664 | Wvolatile-register-var |
665 | C ObjC C++ ObjC++ Var(warn_volatile_register_var) Warning | |
666 | Warn when a register variable is declared volatile | |
667 | ||
fef3106c | 668 | Wwrite-strings |
c662432e | 669 | C ObjC C++ ObjC++ Var(warn_write_strings) Warning |
d8a07487 | 670 | 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 | 671 | |
f2fd3821 | 672 | Wpointer-sign |
c662432e | 673 | C ObjC Var(warn_pointer_sign) Init(-1) Warning |
c85ce869 | 674 | Warn when a pointer differs in signedness in an assignment |
f2fd3821 | 675 | |
fef3106c NB |
676 | ansi |
677 | C ObjC C++ ObjC++ | |
c85ce869 | 678 | A synonym for -std=c89 (for C) or -std=c++98 (for C++) |
fef3106c NB |
679 | |
680 | d | |
681 | C ObjC C++ ObjC++ Joined | |
72de27ea | 682 | ; Documented in common.opt. FIXME - what about -dI, -dD, -dN and -dD? |
fef3106c | 683 | |
fef3106c | 684 | faccess-control |
5498f011 | 685 | C++ ObjC++ Var(flag_access_control) Init(1) |
bae92bf3 | 686 | Enforce class member access control semantics |
fef3106c NB |
687 | |
688 | fall-virtual | |
2d2bd949 | 689 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
690 | |
691 | falt-external-templates | |
2d2bd949 | 692 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 693 | No longer supported |
fef3106c NB |
694 | |
695 | fasm | |
5498f011 | 696 | C ObjC C++ ObjC++ Var(flag_no_asm, 0) |
5a170a05 | 697 | Recognize the \"asm\" keyword |
fef3106c NB |
698 | |
699 | fbuiltin | |
5498f011 | 700 | C ObjC C++ ObjC++ Var(flag_no_builtin, 0) |
5a170a05 | 701 | Recognize built-in functions |
fef3106c NB |
702 | |
703 | fbuiltin- | |
704 | C ObjC C++ ObjC++ Joined | |
705 | ||
706 | fcheck-new | |
5498f011 | 707 | C++ ObjC++ Var(flag_check_new) |
bae92bf3 | 708 | Check the return value of new |
fef3106c NB |
709 | |
710 | fcond-mismatch | |
711 | C ObjC C++ ObjC++ | |
5a170a05 | 712 | Allow the arguments of the '?' operator to have different types |
fef3106c NB |
713 | |
714 | fconserve-space | |
5498f011 | 715 | C++ ObjC++ Var(flag_conserve_space) |
bae92bf3 | 716 | Reduce the size of object files |
fef3106c | 717 | |
fef3106c | 718 | fconstant-string-class= |
61ff2bdc | 719 | ObjC ObjC++ Joined MissingArgError(no class name specified with %qs) |
f2ac9964 | 720 | -fconst-string-class=<name> Use class <name> for constant strings |
fef3106c | 721 | |
17bc631c | 722 | fconstexpr-depth= |
49a000c3 JM |
723 | C++ ObjC++ Joined RejectNegative UInteger Var(max_constexpr_depth) Init(512) |
724 | -fconstexpr-depth=<number> Specify maximum constexpr recursion depth | |
17bc631c | 725 | |
5f5babf1 JM |
726 | fdeduce-init-list |
727 | C++ ObjC++ Var(flag_deduce_init_list) Init(1) | |
728 | -fno-deduce-init-list disable deduction of std::initializer_list for a template type parameter from a brace-enclosed initializer-list | |
729 | ||
fef3106c | 730 | fdefault-inline |
2d2bd949 | 731 | C++ ObjC++ Ignore |
5498f011 | 732 | Does nothing. Preserved for backward compatibility. |
fef3106c | 733 | |
ccfc4c91 OW |
734 | fdirectives-only |
735 | C ObjC C++ ObjC++ | |
736 | Preprocess directives only. | |
737 | ||
fef3106c NB |
738 | fdollars-in-identifiers |
739 | C ObjC C++ ObjC++ | |
72de27ea | 740 | Permit '$' as an identifier character |
fef3106c | 741 | |
fef3106c | 742 | felide-constructors |
5498f011 | 743 | C++ ObjC++ Var(flag_elide_constructors) Init(1) |
fef3106c NB |
744 | |
745 | fenforce-eh-specs | |
5498f011 | 746 | C++ ObjC++ Var(flag_enforce_eh_specs) Init(1) |
bae92bf3 | 747 | Generate code to check exception specifications |
fef3106c NB |
748 | |
749 | fenum-int-equiv | |
2d2bd949 | 750 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 751 | |
e6cc3a24 ZW |
752 | fexec-charset= |
753 | C ObjC C++ ObjC++ Joined RejectNegative | |
72de27ea | 754 | -fexec-charset=<cset> Convert all strings and character constants to character set <cset> |
e6cc3a24 | 755 | |
af15a2fe JM |
756 | fextended-identifiers |
757 | C ObjC C++ ObjC++ | |
758 | Permit universal character names (\\u and \\U) in identifiers | |
759 | ||
16dd5cfe EC |
760 | finput-charset= |
761 | C ObjC C++ ObjC++ Joined RejectNegative | |
c85ce869 | 762 | -finput-charset=<cset> Specify the default character set for source files |
16dd5cfe EC |
763 | |
764 | ||
fef3106c | 765 | fexternal-templates |
2d2bd949 | 766 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 767 | |
fef3106c | 768 | ffor-scope |
5498f011 | 769 | C++ ObjC++ Var(flag_new_for_scope) Init(1) |
bae92bf3 | 770 | Scope of for-init-statement variables is local to the loop |
fef3106c NB |
771 | |
772 | ffreestanding | |
820b51ae | 773 | C ObjC C++ ObjC++ |
5a170a05 | 774 | Do not assume that standard C libraries and \"main\" exist |
fef3106c NB |
775 | |
776 | fgnu-keywords | |
5498f011 | 777 | C++ ObjC++ Var(flag_no_gnu_keywords, 0) |
bae92bf3 | 778 | Recognize GNU-defined keywords |
fef3106c NB |
779 | |
780 | fgnu-runtime | |
781 | ObjC ObjC++ | |
f2ac9964 | 782 | Generate code for GNU runtime environment |
fef3106c | 783 | |
da1c7394 | 784 | fgnu89-inline |
2cbac420 | 785 | C ObjC Var(flag_gnu89_inline) Init(-1) |
da1c7394 ILT |
786 | Use traditional GNU semantics for inline functions |
787 | ||
fef3106c | 788 | fguiding-decls |
2d2bd949 | 789 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
790 | |
791 | fhandle-exceptions | |
2d2bd949 | 792 | C++ ObjC++ Optimization Alias(fexceptions) Warn({-fhandle-exceptions has been renamed -fexceptions (and is now on by default)}) |
fef3106c NB |
793 | |
794 | fhonor-std | |
2d2bd949 | 795 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
796 | |
797 | fhosted | |
798 | C ObjC | |
5a170a05 | 799 | Assume normal C execution environment |
fef3106c NB |
800 | |
801 | fhuge-objects | |
2d2bd949 | 802 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 803 | No longer supported |
fef3106c NB |
804 | |
805 | fimplement-inlines | |
5498f011 | 806 | C++ ObjC++ Var(flag_implement_inlines) Init(1) |
bae92bf3 | 807 | Export functions even if they can be inlined |
fef3106c NB |
808 | |
809 | fimplicit-inline-templates | |
5498f011 | 810 | C++ ObjC++ Var(flag_implicit_inline_templates) Init(1) |
bae92bf3 | 811 | Emit implicit instantiations of inline templates |
fef3106c NB |
812 | |
813 | fimplicit-templates | |
5498f011 | 814 | C++ ObjC++ Var(flag_implicit_templates) Init(1) |
bae92bf3 | 815 | Emit implicit instantiations of templates |
fef3106c | 816 | |
d63d5d0c | 817 | ffriend-injection |
2cbac420 | 818 | C++ ObjC++ Var(flag_friend_injection) |
d63d5d0c ILT |
819 | Inject friend functions into enclosing namespace |
820 | ||
47ea1edf DK |
821 | fkeep-inline-dllexport |
822 | C C++ ObjC ObjC++ Var(flag_keep_inline_dllexport) Init(1) Report Condition(TARGET_DLLIMPORT_DECL_ATTRIBUTES) | |
823 | Don't emit dllexported inline functions unless needed | |
824 | ||
fef3106c | 825 | flabels-ok |
2d2bd949 | 826 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 827 | |
00c8e9f6 | 828 | flax-vector-conversions |
5498f011 | 829 | C ObjC C++ ObjC++ Var(flag_lax_vector_conversions) |
00c8e9f6 MS |
830 | Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types. |
831 | ||
fef3106c | 832 | fms-extensions |
5498f011 | 833 | C ObjC C++ ObjC++ Var(flag_ms_extensions) |
bae92bf3 | 834 | Don't warn about uses of Microsoft extensions |
fef3106c NB |
835 | |
836 | fname-mangling-version- | |
2d2bd949 | 837 | C++ ObjC++ Joined Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
838 | |
839 | fnew-abi | |
2d2bd949 | 840 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
841 | |
842 | fnext-runtime | |
843 | ObjC ObjC++ | |
264fa2db ZL |
844 | Generate code for NeXT (Apple Mac OS X) runtime environment |
845 | ||
846 | fnil-receivers | |
5498f011 | 847 | ObjC ObjC++ Var(flag_nil_receivers) Init(1) |
264fa2db | 848 | Assume that receivers of Objective-C messages may be nil |
fef3106c NB |
849 | |
850 | fnonansi-builtins | |
5498f011 | 851 | C++ ObjC++ Var(flag_no_nonansi_builtin, 0) |
fef3106c NB |
852 | |
853 | fnonnull-objects | |
2d2bd949 | 854 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 855 | |
9feb3d6a JM |
856 | fnothrow-opt |
857 | C++ ObjC++ Optimization Var(flag_nothrow_opt) | |
858 | Treat a throw() exception specification as noexcept to improve code size | |
859 | ||
0a256240 NP |
860 | fobjc-abi-version= |
861 | ObjC ObjC++ Joined Report RejectNegative UInteger Var(flag_objc_abi) | |
862 | Specify which ABI to use for Objective-C family code and meta-data generation. | |
863 | ||
6e955430 ZL |
864 | ; Generate special '- .cxx_construct' and '- .cxx_destruct' methods |
865 | ; to initialize any non-POD ivars in Objective-C++ classes. | |
866 | fobjc-call-cxx-cdtors | |
867 | ObjC++ Var(flag_objc_call_cxx_cdtors) | |
868 | Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed | |
869 | ||
870 | fobjc-direct-dispatch | |
871 | ObjC ObjC++ Var(flag_objc_direct_dispatch) | |
872 | Allow fast jumps to the message dispatcher | |
873 | ||
874 | ; Nonzero means that we will allow new ObjC exception syntax (@throw, | |
875 | ; @try, etc.) in source code. | |
264fa2db | 876 | fobjc-exceptions |
6e955430 | 877 | ObjC ObjC++ Var(flag_objc_exceptions) |
264fa2db ZL |
878 | Enable Objective-C exception and synchronization syntax |
879 | ||
6e955430 ZL |
880 | fobjc-gc |
881 | ObjC ObjC++ Var(flag_objc_gc) | |
882 | Enable garbage collection (GC) in Objective-C/Objective-C++ programs | |
883 | ||
0a256240 NP |
884 | fobjc-nilcheck |
885 | ObjC ObjC++ Var(flag_objc_nilcheck,1) | |
886 | Enable inline checks for nil receivers with the NeXT runtime and ABI version 2. | |
887 | ||
6e955430 | 888 | ; Nonzero means that we generate NeXT setjmp based exceptions. |
093c7153 | 889 | fobjc-sjlj-exceptions |
6e955430 | 890 | ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1) |
093c7153 RH |
891 | Enable Objective-C setjmp exception handling runtime |
892 | ||
22d8d616 NP |
893 | fobjc-std=objc1 |
894 | ObjC ObjC++ Var(flag_objc1_only) | |
895 | Conform to the Objective-C 1.0 language as implemented in GCC 4.0 | |
896 | ||
953ff289 DN |
897 | fopenmp |
898 | C ObjC C++ ObjC++ Var(flag_openmp) | |
9a0f3e86 | 899 | Enable OpenMP (implies -frecursive in Fortran) |
953ff289 | 900 | |
fef3106c NB |
901 | foperator-names |
902 | C++ ObjC++ | |
1cbc62c0 | 903 | Recognize C++ keywords like \"compl\" and \"xor\" |
fef3106c NB |
904 | |
905 | foptional-diags | |
2d2bd949 | 906 | C++ ObjC++ Ignore |
5498f011 | 907 | Does nothing. Preserved for backward compatibility. |
fef3106c NB |
908 | |
909 | fpch-deps | |
910 | C ObjC C++ ObjC++ | |
911 | ||
c0d578e6 GK |
912 | fpch-preprocess |
913 | C ObjC C++ ObjC++ | |
914 | Look for and use PCH files even when preprocessing | |
915 | ||
fef3106c NB |
916 | fpermissive |
917 | C++ ObjC++ | |
bae92bf3 | 918 | Downgrade conformance errors to warnings |
fef3106c | 919 | |
478a1c5b ILT |
920 | fplan9-extensions |
921 | C ObjC Var(flag_plan9_extensions) | |
922 | Enable Plan 9 language extensions | |
923 | ||
fef3106c NB |
924 | fpreprocessed |
925 | C ObjC C++ ObjC++ | |
72de27ea | 926 | Treat the input file as already preprocessed |
fef3106c | 927 | |
6ea2bd47 | 928 | fpretty-templates |
5498f011 | 929 | C++ ObjC++ Var(flag_pretty_templates) Init(1) |
6ea2bd47 JM |
930 | -fno-pretty-templates Do not pretty-print template specializations as the template signature followed by the arguments |
931 | ||
264fa2db | 932 | freplace-objc-classes |
5498f011 | 933 | ObjC ObjC++ Var(flag_replace_objc_classes) |
264fa2db ZL |
934 | Used in Fix-and-Continue mode to indicate that object files may be swapped in at runtime |
935 | ||
fef3106c NB |
936 | frepo |
937 | C++ ObjC++ | |
bae92bf3 | 938 | Enable automatic template instantiation |
fef3106c NB |
939 | |
940 | frtti | |
5498f011 | 941 | C++ ObjC++ Optimization Var(flag_rtti) Init(1) |
bae92bf3 | 942 | Generate run time type descriptor information |
fef3106c NB |
943 | |
944 | fshort-double | |
5498f011 | 945 | C ObjC C++ ObjC++ Optimization Var(flag_short_double) |
5a170a05 | 946 | Use the same size for double as for float |
fef3106c NB |
947 | |
948 | fshort-enums | |
5498f011 | 949 | C ObjC C++ ObjC++ Optimization Var(flag_short_enums) |
5a170a05 | 950 | Use the narrowest integer type possible for enumeration types |
fef3106c NB |
951 | |
952 | fshort-wchar | |
5498f011 | 953 | C ObjC C++ ObjC++ Optimization Var(flag_short_wchar) |
5a170a05 | 954 | Force the underlying type for \"wchar_t\" to be \"unsigned short\" |
fef3106c | 955 | |
fef3106c | 956 | fsigned-bitfields |
5498f011 | 957 | C ObjC C++ ObjC++ Var(flag_signed_bitfields) Init(1) |
5a170a05 | 958 | When \"signed\" or \"unsigned\" is not given make the bitfield signed |
fef3106c NB |
959 | |
960 | fsigned-char | |
5498f011 | 961 | C ObjC C++ ObjC++ LTO Var(flag_signed_char) |
5a170a05 | 962 | Make \"char\" signed by default |
fef3106c NB |
963 | |
964 | fsquangle | |
2d2bd949 | 965 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
966 | |
967 | fstats | |
5498f011 | 968 | C++ ObjC++ Var(flag_detailed_statistics) |
bae92bf3 | 969 | Display statistics accumulated during compilation |
fef3106c | 970 | |
cbb4feb3 JM |
971 | fstrict-enums |
972 | C++ ObjC++ Optimization Var(flag_strict_enums) | |
973 | Assume that values of enumeration type are always within the minimum range of that type | |
974 | ||
fef3106c | 975 | fstrict-prototype |
2d2bd949 | 976 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
977 | |
978 | ftabstop= | |
7b086b11 | 979 | C ObjC C++ ObjC++ Joined RejectNegative UInteger |
72de27ea | 980 | -ftabstop=<number> Distance between tab stops for column reporting |
fef3106c NB |
981 | |
982 | ftemplate-depth- | |
5de8299c | 983 | C++ ObjC++ Joined RejectNegative Undocumented Alias(ftemplate-depth=) |
124e0d27 MLI |
984 | |
985 | ftemplate-depth= | |
c22cacf3 | 986 | C++ ObjC++ Joined RejectNegative UInteger |
124e0d27 | 987 | -ftemplate-depth=<number> Specify maximum template instantiation depth |
fef3106c NB |
988 | |
989 | fthis-is-variable | |
2d2bd949 | 990 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 991 | |
40aac948 | 992 | fthreadsafe-statics |
5498f011 | 993 | C++ ObjC++ Optimization Var(flag_threadsafe_statics) Init(1) |
c85ce869 | 994 | -fno-threadsafe-statics Do not generate thread-safe code for initializing local statics |
40aac948 | 995 | |
fef3106c | 996 | funsigned-bitfields |
f0036cca | 997 | C ObjC C++ ObjC++ Var(flag_signed_bitfields, 0) |
5a170a05 | 998 | When \"signed\" or \"unsigned\" is not given make the bitfield unsigned |
fef3106c NB |
999 | |
1000 | funsigned-char | |
f0036cca | 1001 | C ObjC C++ ObjC++ LTO Var(flag_signed_char, 0) |
5a170a05 | 1002 | Make \"char\" unsigned by default |
fef3106c NB |
1003 | |
1004 | fuse-cxa-atexit | |
5498f011 | 1005 | C++ ObjC++ Var(flag_use_cxa_atexit) Init(DEFAULT_USE_CXA_ATEXIT) |
bae92bf3 | 1006 | Use __cxa_atexit to register destructors |
fef3106c | 1007 | |
c7b5e395 | 1008 | fuse-cxa-get-exception-ptr |
5498f011 | 1009 | C++ ObjC++ Var(flag_use_cxa_get_exception_ptr) Init(2) |
c7b5e395 GK |
1010 | Use __cxa_get_exception_ptr in exception handling |
1011 | ||
d7afec4b | 1012 | fvisibility-inlines-hidden |
d0b07283 | 1013 | C++ ObjC++ |
d7afec4b ND |
1014 | Marks all inlined methods as having hidden visibility |
1015 | ||
ddbfd28d GK |
1016 | fvisibility-ms-compat |
1017 | C++ ObjC++ Var(flag_visibility_ms_compat) | |
1018 | Changes visibility to match Microsoft Visual Studio by default | |
1019 | ||
fef3106c | 1020 | fvtable-gc |
2d2bd949 | 1021 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 1022 | No longer supported |
fef3106c NB |
1023 | |
1024 | fvtable-thunks | |
2d2bd949 | 1025 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 1026 | No longer supported |
fef3106c NB |
1027 | |
1028 | fweak | |
5498f011 | 1029 | C++ ObjC++ Var(flag_weak) Init(1) |
bae92bf3 | 1030 | Emit common-like symbols as weak symbols |
fef3106c | 1031 | |
e6cc3a24 ZW |
1032 | fwide-exec-charset= |
1033 | C ObjC C++ ObjC++ Joined RejectNegative | |
72de27ea | 1034 | -fwide-exec-charset=<cset> Convert all wide strings and character constants to character set <cset> |
e6cc3a24 | 1035 | |
b20d9f0c | 1036 | fworking-directory |
5498f011 | 1037 | C ObjC C++ ObjC++ Var(flag_working_directory) Init(-1) |
b20d9f0c AO |
1038 | Generate a #line directive pointing at the current working directory |
1039 | ||
fef3106c | 1040 | fxref |
2d2bd949 | 1041 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 1042 | No longer supported |
fef3106c | 1043 | |
264fa2db | 1044 | fzero-link |
5498f011 | 1045 | ObjC ObjC++ Var(flag_zero_link) |
264fa2db ZL |
1046 | Generate lazy class lookup (via objc_getClass()) for use in Zero-Link mode |
1047 | ||
fef3106c | 1048 | gen-decls |
5498f011 | 1049 | ObjC ObjC++ Var(flag_gen_declaration) |
f2ac9964 | 1050 | Dump declarations to a .decl file |
fef3106c | 1051 | |
39ef6592 LC |
1052 | femit-struct-debug-baseonly |
1053 | C ObjC C++ ObjC++ | |
1054 | -femit-struct-debug-baseonly Aggressive reduced debug info for structs | |
1055 | ||
1056 | femit-struct-debug-reduced | |
1057 | C ObjC C++ ObjC++ | |
1058 | -femit-struct-debug-reduced Conservative reduced debug info for structs | |
1059 | ||
1060 | femit-struct-debug-detailed= | |
1061 | C ObjC C++ ObjC++ Joined | |
1062 | -femit-struct-debug-detailed=<spec-list> Detailed reduced debug info for structs | |
1063 | ||
fef3106c | 1064 | idirafter |
61ff2bdc | 1065 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 1066 | -idirafter <dir> Add <dir> to the end of the system include path |
fef3106c NB |
1067 | |
1068 | imacros | |
61ff2bdc | 1069 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
72de27ea | 1070 | -imacros <file> Accept definition of macros in <file> |
fef3106c | 1071 | |
2b6dd222 JM |
1072 | imultilib |
1073 | C ObjC C++ ObjC++ Joined Separate | |
f94e1d66 | 1074 | -imultilib <dir> Set <dir> to be the multilib include subdirectory |
2b6dd222 | 1075 | |
fef3106c | 1076 | include |
61ff2bdc | 1077 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
72de27ea | 1078 | -include <file> Include the contents of <file> before other files |
fef3106c NB |
1079 | |
1080 | iprefix | |
1081 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1082 | -iprefix <path> Specify <path> as a prefix for next two options |
fef3106c NB |
1083 | |
1084 | isysroot | |
61ff2bdc | 1085 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 1086 | -isysroot <dir> Set <dir> to be the system root directory |
fef3106c NB |
1087 | |
1088 | isystem | |
61ff2bdc | 1089 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 1090 | -isystem <dir> Add <dir> to the start of the system include path |
fef3106c | 1091 | |
4bed3787 | 1092 | iquote |
61ff2bdc | 1093 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
4bed3787 MS |
1094 | -iquote <dir> Add <dir> to the end of the quote include path |
1095 | ||
fef3106c NB |
1096 | iwithprefix |
1097 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1098 | -iwithprefix <dir> Add <dir> to the end of the system include path |
fef3106c NB |
1099 | |
1100 | iwithprefixbefore | |
1101 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1102 | -iwithprefixbefore <dir> Add <dir> to the end of the main include path |
fef3106c NB |
1103 | |
1104 | lang-asm | |
603349bf | 1105 | C Undocumented RejectDriver |
fef3106c | 1106 | |
e200444e JM |
1107 | no-integrated-cpp |
1108 | Driver | |
1109 | ||
fef3106c NB |
1110 | nostdinc |
1111 | C ObjC C++ ObjC++ | |
72de27ea | 1112 | Do not search standard system include directories (those specified with -isystem will still be used) |
fef3106c NB |
1113 | |
1114 | nostdinc++ | |
72de27ea NB |
1115 | C++ ObjC++ |
1116 | Do not search standard system include directories for C++ | |
fef3106c NB |
1117 | |
1118 | o | |
1119 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1120 | ; Documented in common.opt |
fef3106c NB |
1121 | |
1122 | pedantic | |
1123 | C ObjC C++ ObjC++ | |
72de27ea | 1124 | ; Documented in common.opt |
fef3106c NB |
1125 | |
1126 | pedantic-errors | |
1127 | C ObjC C++ ObjC++ | |
72de27ea | 1128 | ; Documented in common.opt |
fef3106c NB |
1129 | |
1130 | print-objc-runtime-info | |
1131 | ObjC ObjC++ | |
f2ac9964 | 1132 | Generate C header of platform-specific features |
fef3106c NB |
1133 | |
1134 | remap | |
1135 | C ObjC C++ ObjC++ | |
72de27ea | 1136 | Remap file names when including files |
fef3106c NB |
1137 | |
1138 | std=c++98 | |
1139 | C++ ObjC++ | |
72de27ea | 1140 | Conform to the ISO 1998 C++ standard |
fef3106c | 1141 | |
966541e3 DG |
1142 | std=c++0x |
1143 | C++ ObjC++ | |
1144 | Conform to the ISO 1998 C++ standard, with extensions that are likely to | |
1145 | become a part of the upcoming ISO C++ standard, dubbed C++0x. Note that the | |
1146 | extensions enabled by this mode are experimental and may be removed in | |
1147 | future releases of GCC. | |
1148 | ||
2778d766 JM |
1149 | std=c1x |
1150 | C ObjC | |
1151 | Conform to the ISO 201X C standard draft (experimental and incomplete support) | |
1152 | ||
fef3106c | 1153 | std=c89 |
5de8299c | 1154 | C ObjC Alias(std=c90) |
72de27ea | 1155 | Conform to the ISO 1990 C standard |
fef3106c | 1156 | |
7e1542b9 MLI |
1157 | std=c90 |
1158 | C ObjC | |
1159 | Conform to the ISO 1990 C standard | |
1160 | ||
fef3106c NB |
1161 | std=c99 |
1162 | C ObjC | |
72de27ea | 1163 | Conform to the ISO 1999 C standard |
fef3106c NB |
1164 | |
1165 | std=c9x | |
5de8299c | 1166 | C ObjC Alias(std=c99) |
72de27ea | 1167 | Deprecated in favor of -std=c99 |
fef3106c NB |
1168 | |
1169 | std=gnu++98 | |
1170 | C++ ObjC++ | |
72de27ea | 1171 | Conform to the ISO 1998 C++ standard with GNU extensions |
fef3106c | 1172 | |
966541e3 DG |
1173 | std=gnu++0x |
1174 | C++ ObjC++ | |
1175 | Conform to the ISO 1998 C++ standard, with GNU extensions and | |
1176 | extensions that are likely to become a part of the upcoming ISO C++ | |
1177 | standard, dubbed C++0x. Note that the extensions enabled by this mode | |
1178 | are experimental and may be removed in future releases of GCC. | |
1179 | ||
2778d766 JM |
1180 | std=gnu1x |
1181 | C ObjC | |
1182 | Conform to the ISO 201X C standard draft with GNU extensions (experimental and incomplete support) | |
1183 | ||
fef3106c | 1184 | std=gnu89 |
5de8299c | 1185 | C ObjC Alias(std=gnu90) |
72de27ea | 1186 | Conform to the ISO 1990 C standard with GNU extensions |
fef3106c | 1187 | |
7e1542b9 MLI |
1188 | std=gnu90 |
1189 | C ObjC | |
1190 | Conform to the ISO 1990 C standard with GNU extensions | |
1191 | ||
fef3106c NB |
1192 | std=gnu99 |
1193 | C ObjC | |
72de27ea | 1194 | Conform to the ISO 1999 C standard with GNU extensions |
fef3106c NB |
1195 | |
1196 | std=gnu9x | |
5de8299c | 1197 | C ObjC Alias(std=gnu99) |
72de27ea | 1198 | Deprecated in favor of -std=gnu99 |
fef3106c NB |
1199 | |
1200 | std=iso9899:1990 | |
5de8299c | 1201 | C ObjC Alias(std=c90) |
3a1e400e | 1202 | Conform to the ISO 1990 C standard |
fef3106c NB |
1203 | |
1204 | std=iso9899:199409 | |
1205 | C ObjC | |
72de27ea | 1206 | Conform to the ISO 1990 C standard as amended in 1994 |
fef3106c NB |
1207 | |
1208 | std=iso9899:1999 | |
5de8299c | 1209 | C ObjC Alias(std=c99) |
3a1e400e | 1210 | Conform to the ISO 1999 C standard |
fef3106c NB |
1211 | |
1212 | std=iso9899:199x | |
5de8299c | 1213 | C ObjC Alias(std=c99) |
3a1e400e | 1214 | Deprecated in favor of -std=iso9899:1999 |
fef3106c | 1215 | |
e200444e JM |
1216 | traditional |
1217 | Driver | |
1218 | ||
fef3106c NB |
1219 | traditional-cpp |
1220 | C ObjC C++ ObjC++ | |
72de27ea | 1221 | Enable traditional preprocessing |
fef3106c NB |
1222 | |
1223 | trigraphs | |
1224 | C ObjC C++ ObjC++ | |
72de27ea | 1225 | -trigraphs Support ISO C trigraphs |
fef3106c NB |
1226 | |
1227 | undef | |
5498f011 | 1228 | C ObjC C++ ObjC++ Var(flag_undef) |
72de27ea | 1229 | Do not predefine system-specific and GCC-specific macros |
fef3106c NB |
1230 | |
1231 | v | |
d5478783 JM |
1232 | C ObjC C++ ObjC++ |
1233 | ; Documented in common.opt | |
fef3106c NB |
1234 | |
1235 | w | |
1236 | C ObjC C++ ObjC++ | |
72de27ea | 1237 | ; Documented in common.opt |
e11a4ae5 NB |
1238 | |
1239 | ; This comment is to ensure we retain the blank line above. |