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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 |
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 |
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 | ||
014ab419 JW |
334 | Wdelete-non-virtual-dtor |
335 | C++ ObjC++ Var(warn_delnonvdtor) Warning | |
336 | Warn about deleting polymorphic objects with non-virtual destructors | |
337 | ||
fef3106c | 338 | Wdeprecated |
899015a0 | 339 | C C++ ObjC ObjC++ Var(warn_deprecated) Init(1) Warning |
9a0f3e86 | 340 | Warn if a deprecated compiler feature, class, method, or field is used |
fef3106c NB |
341 | |
342 | Wdiv-by-zero | |
2cbac420 | 343 | C ObjC C++ ObjC++ Var(warn_div_by_zero) Init(1) Warning |
5a170a05 | 344 | Warn about compile-time integer division by zero |
fef3106c NB |
345 | |
346 | Weffc++ | |
c662432e | 347 | C++ ObjC++ Var(warn_ecpp) Warning |
bae92bf3 | 348 | Warn about violations of Effective C++ style rules |
fef3106c | 349 | |
b3b433c5 | 350 | Wempty-body |
c662432e | 351 | C ObjC C++ ObjC++ Var(warn_empty_body) Init(-1) Warning |
b3b433c5 MLI |
352 | Warn about an empty body in an if or else statement |
353 | ||
fef3106c | 354 | Wendif-labels |
c662432e | 355 | C ObjC C++ ObjC++ Warning |
72de27ea | 356 | Warn about stray tokens after #elif and #endif |
fef3106c | 357 | |
a3299096 | 358 | Wenum-compare |
6866c6e8 | 359 | C ObjC C++ ObjC++ Var(warn_enum_compare) Init(-1) Warning |
a3299096 MM |
360 | Warn about comparison of different enum types |
361 | ||
fef3106c NB |
362 | Werror |
363 | C ObjC C++ ObjC++ | |
72de27ea | 364 | ; Documented in common.opt |
fef3106c NB |
365 | |
366 | Werror-implicit-function-declaration | |
5de8299c | 367 | C ObjC RejectNegative Warning Alias(Werror=, implicit-function-declaration) |
dc90f45b | 368 | This switch is deprecated; use -Werror=implicit-function-declaration instead |
fef3106c NB |
369 | |
370 | Wfloat-equal | |
c662432e | 371 | C ObjC C++ ObjC++ Var(warn_float_equal) Warning |
5a170a05 | 372 | Warn if testing floating point numbers for equality |
fef3106c NB |
373 | |
374 | Wformat | |
c662432e | 375 | C ObjC C++ ObjC++ Warning |
5a170a05 | 376 | Warn about printf/scanf/strftime/strfmon format string anomalies |
fef3106c NB |
377 | |
378 | Wformat-extra-args | |
c662432e | 379 | C ObjC C++ ObjC++ Var(warn_format_extra_args) Warning |
5a170a05 | 380 | Warn if passing too many arguments to a function for its format string |
fef3106c NB |
381 | |
382 | Wformat-nonliteral | |
c662432e | 383 | C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning |
5a170a05 | 384 | Warn about format strings that are not literals |
fef3106c | 385 | |
ca178f85 | 386 | Wformat-contains-nul |
6d16b6e7 | 387 | C ObjC C++ ObjC++ Var(warn_format_contains_nul) Warning |
ca178f85 BK |
388 | Warn about format strings that contain NUL bytes |
389 | ||
fef3106c | 390 | Wformat-security |
c662432e | 391 | C ObjC C++ ObjC++ Var(warn_format_security) Warning |
5a170a05 | 392 | Warn about possible security problems with format functions |
fef3106c NB |
393 | |
394 | Wformat-y2k | |
c662432e | 395 | C ObjC C++ ObjC++ Var(warn_format_y2k) Warning |
5a170a05 | 396 | Warn about strftime formats yielding 2-digit years |
fef3106c NB |
397 | |
398 | Wformat-zero-length | |
4fbbcd7f | 399 | C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning |
7619c085 | 400 | Warn about zero-length formats |
fef3106c NB |
401 | |
402 | Wformat= | |
c662432e | 403 | C ObjC C++ ObjC++ Joined Warning |
fef3106c | 404 | |
5db2e9ca DK |
405 | Wignored-qualifiers |
406 | C C++ Var(warn_ignored_qualifiers) Init(-1) Warning | |
407 | Warn whenever type qualifiers are ignored. | |
408 | ||
3390f9c9 | 409 | Winit-self |
c662432e | 410 | C ObjC C++ ObjC++ Var(warn_init_self) Warning |
ab532386 | 411 | Warn about variables which are initialized to themselves |
3390f9c9 | 412 | |
fef3106c | 413 | Wimplicit |
3734d960 MLI |
414 | C ObjC Var(warn_implicit) Init(-1) Warning |
415 | Warn about implicit declarations | |
fef3106c | 416 | |
0a0b3574 MM |
417 | Wdouble-promotion |
418 | C ObjC C++ ObjC++ Var(warn_double_promotion) Warning | |
419 | Warn about implicit conversions from \"float\" to \"double\" | |
420 | ||
fef3106c | 421 | Wimplicit-function-declaration |
dc90f45b | 422 | C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning |
5a170a05 | 423 | Warn about implicit function declarations |
fef3106c NB |
424 | |
425 | Wimplicit-int | |
3734d960 | 426 | C ObjC Var(warn_implicit_int) Init(-1) Warning |
5a170a05 | 427 | Warn when a declaration does not specify a type |
fef3106c NB |
428 | |
429 | Wimport | |
2d2bd949 | 430 | C ObjC C++ ObjC++ Undocumented Ignore |
fef3106c | 431 | |
53a2494e | 432 | Wint-to-pointer-cast |
dc8d2739 | 433 | C ObjC C++ ObjC++ Var(warn_int_to_pointer_cast) Init(1) Warning |
53a2494e JM |
434 | Warn when there is a cast to a pointer from an integer of a different size |
435 | ||
fef3106c | 436 | Winvalid-offsetof |
c662432e | 437 | C++ ObjC++ Var(warn_invalid_offsetof) Init(1) Warning |
bae92bf3 | 438 | Warn about invalid uses of the \"offsetof\" macro |
fef3106c NB |
439 | |
440 | Winvalid-pch | |
c662432e | 441 | C ObjC C++ ObjC++ Warning |
5a170a05 | 442 | Warn about PCH files that are found but not used |
fef3106c | 443 | |
e1b7793c | 444 | Wjump-misses-init |
da667743 | 445 | C ObjC Var(warn_jump_misses_init) Init(-1) Warning |
e1b7793c ILT |
446 | Warn when a jump misses a variable initialization |
447 | ||
ca409efd | 448 | Wlogical-op |
7bb27074 | 449 | C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning |
ca409efd MLI |
450 | Warn when a logical operator is suspiciously always evaluating to true or false |
451 | ||
fef3106c | 452 | Wlong-long |
9c650d90 | 453 | C ObjC C++ ObjC++ Var(warn_long_long) Init(-1) Warning |
5a170a05 | 454 | Do not warn about using \"long long\" when -pedantic |
fef3106c NB |
455 | |
456 | Wmain | |
4003301d | 457 | C ObjC C++ ObjC++ Var(warn_main) Init(-1) Warning |
5a170a05 | 458 | Warn about suspicious declarations of \"main\" |
fef3106c NB |
459 | |
460 | Wmissing-braces | |
c662432e | 461 | C ObjC C++ ObjC++ Var(warn_missing_braces) Warning |
5a170a05 | 462 | Warn about possibly missing braces around initializers |
fef3106c NB |
463 | |
464 | Wmissing-declarations | |
c662432e | 465 | C ObjC C++ ObjC++ Var(warn_missing_declarations) Warning |
5a170a05 | 466 | Warn about global functions without previous declarations |
fef3106c | 467 | |
eaac4679 | 468 | Wmissing-field-initializers |
c662432e | 469 | C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1) Warning |
eaac4679 RS |
470 | Warn about missing fields in struct initializers |
471 | ||
fef3106c | 472 | Wmissing-format-attribute |
c662432e | 473 | C ObjC C++ ObjC++ Var(warn_missing_format_attribute) Warning |
5a170a05 | 474 | Warn about functions which might be candidates for format attributes |
fef3106c | 475 | |
b02398bd | 476 | Wmissing-include-dirs |
c662432e | 477 | C ObjC C++ ObjC++ Warning |
b02398bd BE |
478 | Warn about user-specified include directories that do not exist |
479 | ||
cb4af25a | 480 | Wmissing-parameter-type |
c662432e | 481 | C ObjC Var(warn_missing_parameter_type) Init(-1) Warning |
cb4af25a MLI |
482 | Warn about function parameters declared without a type specifier in K&R-style functions |
483 | ||
fef3106c | 484 | Wmissing-prototypes |
c662432e | 485 | C ObjC Var(warn_missing_prototypes) Warning |
5a170a05 | 486 | Warn about global functions without prototypes |
fef3106c NB |
487 | |
488 | Wmultichar | |
c662432e | 489 | C ObjC C++ ObjC++ Warning |
5a170a05 | 490 | Warn about use of multi-character character constants |
fef3106c | 491 | |
76f86d00 JM |
492 | Wnarrowing |
493 | C ObjC C++ ObjC++ Warning Var(warn_narrowing) Init(1) | |
494 | -Wno-narrowing In C++0x mode, ignore ill-formed narrowing conversions within { } | |
495 | ||
fef3106c | 496 | Wnested-externs |
c662432e | 497 | C ObjC Var(warn_nested_externs) Warning |
5a170a05 | 498 | Warn about \"extern\" declarations not at file scope |
fef3106c | 499 | |
59f9c2ed JM |
500 | Wnoexcept |
501 | C++ ObjC++ Var(warn_noexcept) Warning | |
3c820dcd | 502 | Warn when a noexcept expression evaluates to false even though the expression can't actually throw |
59f9c2ed | 503 | |
fef3106c | 504 | Wnon-template-friend |
c662432e | 505 | C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warning |
bae92bf3 | 506 | Warn when non-templatized friend functions are declared within a template |
fef3106c NB |
507 | |
508 | Wnon-virtual-dtor | |
c662432e | 509 | C++ ObjC++ Var(warn_nonvdtor) Warning |
bae92bf3 | 510 | Warn about non-virtual destructors |
fef3106c NB |
511 | |
512 | Wnonnull | |
c662432e | 513 | C ObjC Var(warn_nonnull) Warning |
7619c085 | 514 | Warn about NULL being passed to argument slots marked as requiring non-NULL |
fef3106c | 515 | |
50668cf6 | 516 | Wnormalized= |
c662432e | 517 | C ObjC C++ ObjC++ Joined Warning |
50668cf6 GK |
518 | -Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings |
519 | ||
fef3106c | 520 | Wold-style-cast |
c662432e | 521 | C++ ObjC++ Var(warn_old_style_cast) Warning |
bae92bf3 | 522 | Warn if a C-style cast is used in a program |
fef3106c | 523 | |
b1ed4cb4 | 524 | Wold-style-declaration |
c662432e | 525 | C ObjC Var(warn_old_style_declaration) Init(-1) Warning |
b1ed4cb4 MLI |
526 | Warn for obsolescent usage in a declaration |
527 | ||
c034f121 | 528 | Wold-style-definition |
c662432e | 529 | C ObjC Var(warn_old_style_definition) Warning |
c034f121 AJ |
530 | Warn if an old-style parameter definition is used |
531 | ||
89a42ac8 | 532 | Woverlength-strings |
c662432e | 533 | C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1) Warning |
89a42ac8 ZW |
534 | Warn if a string is longer than the maximum portable length specified by the standard |
535 | ||
fef3106c | 536 | Woverloaded-virtual |
c662432e | 537 | C++ ObjC++ Var(warn_overloaded_virtual) Warning |
bae92bf3 | 538 | Warn about overloaded virtual function names |
fef3106c | 539 | |
7ed322d7 | 540 | Woverride-init |
c662432e | 541 | C ObjC Var(warn_override_init) Init(-1) Warning |
7ed322d7 JM |
542 | Warn about overriding initializers without side effects |
543 | ||
2cd36c22 | 544 | Wpacked-bitfield-compat |
bee6fa6d | 545 | C ObjC C++ ObjC++ Var(warn_packed_bitfield_compat) Init(-1) Warning |
2cd36c22 AN |
546 | Warn about packed bit-fields whose offset changed in GCC 4.4 |
547 | ||
fef3106c | 548 | Wparentheses |
c662432e | 549 | C ObjC C++ ObjC++ Var(warn_parentheses) Warning |
5a170a05 | 550 | Warn about possibly missing parentheses |
fef3106c NB |
551 | |
552 | Wpmf-conversions | |
c662432e | 553 | C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning |
bae92bf3 | 554 | Warn when converting the type of pointers to member functions |
fef3106c NB |
555 | |
556 | Wpointer-arith | |
c662432e | 557 | C ObjC C++ ObjC++ Var(warn_pointer_arith) Warning |
5a170a05 | 558 | Warn about function pointer arithmetic |
fef3106c | 559 | |
53a2494e | 560 | Wpointer-to-int-cast |
c662432e | 561 | C ObjC Var(warn_pointer_to_int_cast) Init(1) Warning |
53a2494e JM |
562 | Warn when a pointer is cast to an integer of a different size |
563 | ||
b9b8dde3 | 564 | Wpragmas |
c662432e | 565 | C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) Warning |
b9b8dde3 DD |
566 | Warn about misuses of pragmas |
567 | ||
9a179d01 NP |
568 | Wproperty-assign-default |
569 | ObjC ObjC++ Var(warn_property_assign_default) Init(1) Warning | |
570 | Warn if a property for an Objective-C object has no assign semantics specified | |
571 | ||
fef3106c | 572 | Wprotocol |
c662432e | 573 | ObjC ObjC++ Var(warn_protocol) Init(1) Warning |
f2ac9964 | 574 | Warn if inherited methods are unimplemented |
fef3106c NB |
575 | |
576 | Wredundant-decls | |
c662432e | 577 | C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning |
5a170a05 | 578 | Warn about multiple declarations of the same object |
fef3106c NB |
579 | |
580 | Wreorder | |
c662432e | 581 | C++ ObjC++ Var(warn_reorder) Warning |
bae92bf3 | 582 | Warn when the compiler reorders code |
fef3106c NB |
583 | |
584 | Wreturn-type | |
c662432e | 585 | C ObjC C++ ObjC++ Var(warn_return_type) Warning |
bae92bf3 | 586 | Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++) |
fef3106c NB |
587 | |
588 | Wselector | |
c662432e | 589 | ObjC ObjC++ Var(warn_selector) Warning |
f2ac9964 | 590 | Warn if a selector has multiple methods |
fef3106c NB |
591 | |
592 | Wsequence-point | |
c662432e | 593 | C ObjC C++ ObjC++ Var(warn_sequence_point) Warning |
5a170a05 | 594 | Warn about possible violations of sequence point rules |
fef3106c NB |
595 | |
596 | Wsign-compare | |
c662432e | 597 | C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1) Warning |
5a170a05 | 598 | Warn about signed-unsigned comparisons |
fef3106c NB |
599 | |
600 | Wsign-promo | |
c662432e | 601 | C++ ObjC++ Var(warn_sign_promo) Warning |
bae92bf3 | 602 | Warn when overload promotes from unsigned to signed |
fef3106c | 603 | |
b2f97e4a | 604 | Wstrict-null-sentinel |
5498f011 | 605 | C++ ObjC++ Warning Var(warn_strict_null_sentinel) |
b2f97e4a MM |
606 | Warn about uncasted NULL used as sentinel |
607 | ||
fef3106c | 608 | Wstrict-prototypes |
c662432e | 609 | C ObjC Var(warn_strict_prototypes) Warning |
5a170a05 | 610 | Warn about unprototyped function declarations |
fef3106c | 611 | |
6e955430 | 612 | Wstrict-selector-match |
c662432e | 613 | ObjC ObjC++ Var(warn_strict_selector_match) Warning |
6e955430 ZL |
614 | Warn if type signatures of candidate methods do not match exactly |
615 | ||
23462d4d UB |
616 | Wsync-nand |
617 | C C++ Var(warn_sync_nand) Init(1) Warning | |
618 | Warn when __sync_fetch_and_nand and __sync_nand_and_fetch built-in functions are used | |
619 | ||
fef3106c | 620 | Wsynth |
c662432e | 621 | C++ ObjC++ Var(warn_synth) Warning |
802e3f8c | 622 | Deprecated. This switch has no effect |
fef3106c NB |
623 | |
624 | Wsystem-headers | |
c662432e | 625 | C ObjC C++ ObjC++ Warning |
9a0f3e86 | 626 | ; Documented in common.opt |
fef3106c NB |
627 | |
628 | Wtraditional | |
c662432e | 629 | C ObjC Var(warn_traditional) Warning |
72de27ea | 630 | Warn about features not present in traditional C |
fef3106c | 631 | |
05170031 | 632 | Wtraditional-conversion |
c662432e | 633 | C ObjC Var(warn_traditional_conversion) Warning |
05170031 MLI |
634 | Warn of prototypes causing type conversions different from what would happen in the absence of prototype |
635 | ||
fef3106c | 636 | Wtrigraphs |
c662432e | 637 | C ObjC C++ ObjC++ Warning |
72de27ea | 638 | Warn if trigraphs are encountered that might affect the meaning of the program |
fef3106c NB |
639 | |
640 | Wundeclared-selector | |
c662432e | 641 | ObjC ObjC++ Var(warn_undeclared_selector) Warning |
7619c085 | 642 | Warn about @selector()s without previously declared methods |
fef3106c NB |
643 | |
644 | Wundef | |
c662432e | 645 | C ObjC C++ ObjC++ Warning |
72de27ea | 646 | Warn if an undefined macro is used in an #if directive |
fef3106c NB |
647 | |
648 | Wunknown-pragmas | |
c662432e | 649 | C ObjC C++ ObjC++ Warning |
5a170a05 | 650 | Warn about unrecognized pragmas |
fef3106c | 651 | |
6ec637a4 JJ |
652 | Wunsuffixed-float-constants |
653 | C ObjC Var(warn_unsuffixed_float_constants) Warning | |
654 | Warn about unsuffixed float constants | |
655 | ||
3797cb21 DS |
656 | Wunused-local-typedefs |
657 | C ObjC C++ ObjC++ Var(warn_unused_local_typedefs) Warning | |
658 | Warn about | |
659 | ||
fef3106c | 660 | Wunused-macros |
c662432e | 661 | C ObjC C++ ObjC++ Warning |
72de27ea | 662 | Warn about macros defined in the main file that are not used |
fef3106c | 663 | |
156f545a MLI |
664 | Wunused-result |
665 | C ObjC C++ ObjC++ Var(warn_unused_result) Init(1) Warning | |
666 | Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value | |
667 | ||
e5b79219 | 668 | Wvariadic-macros |
c662432e | 669 | C ObjC C++ ObjC++ Warning |
e5b79219 RH |
670 | Do not warn about using variadic macros when -pedantic |
671 | ||
50d50fc7 SP |
672 | Wvla |
673 | C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning | |
674 | Warn if a variable length array is used | |
675 | ||
16302daf MLI |
676 | Wvolatile-register-var |
677 | C ObjC C++ ObjC++ Var(warn_volatile_register_var) Warning | |
678 | Warn when a register variable is declared volatile | |
679 | ||
fef3106c | 680 | Wwrite-strings |
c662432e | 681 | C ObjC C++ ObjC++ Var(warn_write_strings) Warning |
d8a07487 | 682 | 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 | 683 | |
f2fd3821 | 684 | Wpointer-sign |
c662432e | 685 | C ObjC Var(warn_pointer_sign) Init(-1) Warning |
c85ce869 | 686 | Warn when a pointer differs in signedness in an assignment |
f2fd3821 | 687 | |
fef3106c NB |
688 | ansi |
689 | C ObjC C++ ObjC++ | |
c85ce869 | 690 | A synonym for -std=c89 (for C) or -std=c++98 (for C++) |
fef3106c NB |
691 | |
692 | d | |
693 | C ObjC C++ ObjC++ Joined | |
72de27ea | 694 | ; Documented in common.opt. FIXME - what about -dI, -dD, -dN and -dD? |
fef3106c | 695 | |
fef3106c | 696 | faccess-control |
5498f011 | 697 | C++ ObjC++ Var(flag_access_control) Init(1) |
bae92bf3 | 698 | Enforce class member access control semantics |
fef3106c NB |
699 | |
700 | fall-virtual | |
2d2bd949 | 701 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 702 | |
6637388f TG |
703 | fallow-parameterless-variadic-functions |
704 | C ObjC Var(flag_allow_parameterless_variadic_functions) | |
705 | Allow variadic functions without named parameter | |
706 | ||
fef3106c | 707 | falt-external-templates |
2d2bd949 | 708 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 709 | No longer supported |
fef3106c NB |
710 | |
711 | fasm | |
5498f011 | 712 | C ObjC C++ ObjC++ Var(flag_no_asm, 0) |
5a170a05 | 713 | Recognize the \"asm\" keyword |
fef3106c | 714 | |
10e48e39 RO |
715 | ; Define extra predefined macros for use in libgcc. |
716 | fbuilding-libgcc | |
717 | C ObjC C++ ObjC++ Undocumented Var(flag_building_libgcc) | |
718 | ||
fef3106c | 719 | fbuiltin |
5498f011 | 720 | C ObjC C++ ObjC++ Var(flag_no_builtin, 0) |
5a170a05 | 721 | Recognize built-in functions |
fef3106c NB |
722 | |
723 | fbuiltin- | |
724 | C ObjC C++ ObjC++ Joined | |
725 | ||
726 | fcheck-new | |
5498f011 | 727 | C++ ObjC++ Var(flag_check_new) |
bae92bf3 | 728 | Check the return value of new |
fef3106c NB |
729 | |
730 | fcond-mismatch | |
731 | C ObjC C++ ObjC++ | |
5a170a05 | 732 | Allow the arguments of the '?' operator to have different types |
fef3106c NB |
733 | |
734 | fconserve-space | |
5498f011 | 735 | C++ ObjC++ Var(flag_conserve_space) |
bae92bf3 | 736 | Reduce the size of object files |
fef3106c | 737 | |
fef3106c | 738 | fconstant-string-class= |
61ff2bdc | 739 | ObjC ObjC++ Joined MissingArgError(no class name specified with %qs) |
f2ac9964 | 740 | -fconst-string-class=<name> Use class <name> for constant strings |
fef3106c | 741 | |
17bc631c | 742 | fconstexpr-depth= |
49a000c3 JM |
743 | C++ ObjC++ Joined RejectNegative UInteger Var(max_constexpr_depth) Init(512) |
744 | -fconstexpr-depth=<number> Specify maximum constexpr recursion depth | |
17bc631c | 745 | |
5f5babf1 JM |
746 | fdeduce-init-list |
747 | C++ ObjC++ Var(flag_deduce_init_list) Init(1) | |
748 | -fno-deduce-init-list disable deduction of std::initializer_list for a template type parameter from a brace-enclosed initializer-list | |
749 | ||
fef3106c | 750 | fdefault-inline |
2d2bd949 | 751 | C++ ObjC++ Ignore |
5498f011 | 752 | Does nothing. Preserved for backward compatibility. |
fef3106c | 753 | |
ccfc4c91 OW |
754 | fdirectives-only |
755 | C ObjC C++ ObjC++ | |
756 | Preprocess directives only. | |
757 | ||
fef3106c NB |
758 | fdollars-in-identifiers |
759 | C ObjC C++ ObjC++ | |
72de27ea | 760 | Permit '$' as an identifier character |
fef3106c | 761 | |
fef3106c | 762 | felide-constructors |
5498f011 | 763 | C++ ObjC++ Var(flag_elide_constructors) Init(1) |
fef3106c NB |
764 | |
765 | fenforce-eh-specs | |
5498f011 | 766 | C++ ObjC++ Var(flag_enforce_eh_specs) Init(1) |
bae92bf3 | 767 | Generate code to check exception specifications |
fef3106c NB |
768 | |
769 | fenum-int-equiv | |
2d2bd949 | 770 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 771 | |
e6cc3a24 ZW |
772 | fexec-charset= |
773 | C ObjC C++ ObjC++ Joined RejectNegative | |
72de27ea | 774 | -fexec-charset=<cset> Convert all strings and character constants to character set <cset> |
e6cc3a24 | 775 | |
af15a2fe JM |
776 | fextended-identifiers |
777 | C ObjC C++ ObjC++ | |
778 | Permit universal character names (\\u and \\U) in identifiers | |
779 | ||
16dd5cfe EC |
780 | finput-charset= |
781 | C ObjC C++ ObjC++ Joined RejectNegative | |
c85ce869 | 782 | -finput-charset=<cset> Specify the default character set for source files |
16dd5cfe EC |
783 | |
784 | ||
fef3106c | 785 | fexternal-templates |
2d2bd949 | 786 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 787 | |
fef3106c | 788 | ffor-scope |
5498f011 | 789 | C++ ObjC++ Var(flag_new_for_scope) Init(1) |
bae92bf3 | 790 | Scope of for-init-statement variables is local to the loop |
fef3106c NB |
791 | |
792 | ffreestanding | |
820b51ae | 793 | C ObjC C++ ObjC++ |
5a170a05 | 794 | Do not assume that standard C libraries and \"main\" exist |
fef3106c NB |
795 | |
796 | fgnu-keywords | |
5498f011 | 797 | C++ ObjC++ Var(flag_no_gnu_keywords, 0) |
bae92bf3 | 798 | Recognize GNU-defined keywords |
fef3106c NB |
799 | |
800 | fgnu-runtime | |
801 | ObjC ObjC++ | |
f2ac9964 | 802 | Generate code for GNU runtime environment |
fef3106c | 803 | |
da1c7394 | 804 | fgnu89-inline |
2cbac420 | 805 | C ObjC Var(flag_gnu89_inline) Init(-1) |
da1c7394 ILT |
806 | Use traditional GNU semantics for inline functions |
807 | ||
fef3106c | 808 | fguiding-decls |
2d2bd949 | 809 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
810 | |
811 | fhandle-exceptions | |
2d2bd949 | 812 | C++ ObjC++ Optimization Alias(fexceptions) Warn({-fhandle-exceptions has been renamed -fexceptions (and is now on by default)}) |
fef3106c NB |
813 | |
814 | fhonor-std | |
2d2bd949 | 815 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
816 | |
817 | fhosted | |
818 | C ObjC | |
5a170a05 | 819 | Assume normal C execution environment |
fef3106c NB |
820 | |
821 | fhuge-objects | |
2d2bd949 | 822 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 823 | No longer supported |
fef3106c NB |
824 | |
825 | fimplement-inlines | |
5498f011 | 826 | C++ ObjC++ Var(flag_implement_inlines) Init(1) |
bae92bf3 | 827 | Export functions even if they can be inlined |
fef3106c NB |
828 | |
829 | fimplicit-inline-templates | |
5498f011 | 830 | C++ ObjC++ Var(flag_implicit_inline_templates) Init(1) |
bae92bf3 | 831 | Emit implicit instantiations of inline templates |
fef3106c NB |
832 | |
833 | fimplicit-templates | |
5498f011 | 834 | C++ ObjC++ Var(flag_implicit_templates) Init(1) |
bae92bf3 | 835 | Emit implicit instantiations of templates |
fef3106c | 836 | |
d63d5d0c | 837 | ffriend-injection |
2cbac420 | 838 | C++ ObjC++ Var(flag_friend_injection) |
d63d5d0c ILT |
839 | Inject friend functions into enclosing namespace |
840 | ||
47ea1edf DK |
841 | fkeep-inline-dllexport |
842 | C C++ ObjC ObjC++ Var(flag_keep_inline_dllexport) Init(1) Report Condition(TARGET_DLLIMPORT_DECL_ATTRIBUTES) | |
843 | Don't emit dllexported inline functions unless needed | |
844 | ||
fef3106c | 845 | flabels-ok |
2d2bd949 | 846 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 847 | |
00c8e9f6 | 848 | flax-vector-conversions |
5498f011 | 849 | C ObjC C++ ObjC++ Var(flag_lax_vector_conversions) |
00c8e9f6 MS |
850 | Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types. |
851 | ||
fef3106c | 852 | fms-extensions |
5498f011 | 853 | C ObjC C++ ObjC++ Var(flag_ms_extensions) |
bae92bf3 | 854 | Don't warn about uses of Microsoft extensions |
fef3106c NB |
855 | |
856 | fname-mangling-version- | |
2d2bd949 | 857 | C++ ObjC++ Joined Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
858 | |
859 | fnew-abi | |
2d2bd949 | 860 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
861 | |
862 | fnext-runtime | |
863 | ObjC ObjC++ | |
264fa2db ZL |
864 | Generate code for NeXT (Apple Mac OS X) runtime environment |
865 | ||
866 | fnil-receivers | |
5498f011 | 867 | ObjC ObjC++ Var(flag_nil_receivers) Init(1) |
264fa2db | 868 | Assume that receivers of Objective-C messages may be nil |
fef3106c NB |
869 | |
870 | fnonansi-builtins | |
5498f011 | 871 | C++ ObjC++ Var(flag_no_nonansi_builtin, 0) |
fef3106c NB |
872 | |
873 | fnonnull-objects | |
2d2bd949 | 874 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 875 | |
9feb3d6a JM |
876 | fnothrow-opt |
877 | C++ ObjC++ Optimization Var(flag_nothrow_opt) | |
878 | Treat a throw() exception specification as noexcept to improve code size | |
879 | ||
0a256240 NP |
880 | fobjc-abi-version= |
881 | ObjC ObjC++ Joined Report RejectNegative UInteger Var(flag_objc_abi) | |
882 | Specify which ABI to use for Objective-C family code and meta-data generation. | |
883 | ||
6e955430 ZL |
884 | ; Generate special '- .cxx_construct' and '- .cxx_destruct' methods |
885 | ; to initialize any non-POD ivars in Objective-C++ classes. | |
886 | fobjc-call-cxx-cdtors | |
887 | ObjC++ Var(flag_objc_call_cxx_cdtors) | |
888 | Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed | |
889 | ||
890 | fobjc-direct-dispatch | |
891 | ObjC ObjC++ Var(flag_objc_direct_dispatch) | |
892 | Allow fast jumps to the message dispatcher | |
893 | ||
894 | ; Nonzero means that we will allow new ObjC exception syntax (@throw, | |
895 | ; @try, etc.) in source code. | |
264fa2db | 896 | fobjc-exceptions |
6e955430 | 897 | ObjC ObjC++ Var(flag_objc_exceptions) |
264fa2db ZL |
898 | Enable Objective-C exception and synchronization syntax |
899 | ||
6e955430 ZL |
900 | fobjc-gc |
901 | ObjC ObjC++ Var(flag_objc_gc) | |
902 | Enable garbage collection (GC) in Objective-C/Objective-C++ programs | |
903 | ||
0a256240 NP |
904 | fobjc-nilcheck |
905 | ObjC ObjC++ Var(flag_objc_nilcheck,1) | |
906 | Enable inline checks for nil receivers with the NeXT runtime and ABI version 2. | |
907 | ||
6e955430 | 908 | ; Nonzero means that we generate NeXT setjmp based exceptions. |
093c7153 | 909 | fobjc-sjlj-exceptions |
6e955430 | 910 | ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1) |
093c7153 RH |
911 | Enable Objective-C setjmp exception handling runtime |
912 | ||
22d8d616 NP |
913 | fobjc-std=objc1 |
914 | ObjC ObjC++ Var(flag_objc1_only) | |
915 | Conform to the Objective-C 1.0 language as implemented in GCC 4.0 | |
916 | ||
953ff289 DN |
917 | fopenmp |
918 | C ObjC C++ ObjC++ Var(flag_openmp) | |
9a0f3e86 | 919 | Enable OpenMP (implies -frecursive in Fortran) |
953ff289 | 920 | |
fef3106c NB |
921 | foperator-names |
922 | C++ ObjC++ | |
1cbc62c0 | 923 | Recognize C++ keywords like \"compl\" and \"xor\" |
fef3106c NB |
924 | |
925 | foptional-diags | |
2d2bd949 | 926 | C++ ObjC++ Ignore |
5498f011 | 927 | Does nothing. Preserved for backward compatibility. |
fef3106c NB |
928 | |
929 | fpch-deps | |
930 | C ObjC C++ ObjC++ | |
931 | ||
c0d578e6 GK |
932 | fpch-preprocess |
933 | C ObjC C++ ObjC++ | |
934 | Look for and use PCH files even when preprocessing | |
935 | ||
fef3106c NB |
936 | fpermissive |
937 | C++ ObjC++ | |
bae92bf3 | 938 | Downgrade conformance errors to warnings |
fef3106c | 939 | |
478a1c5b ILT |
940 | fplan9-extensions |
941 | C ObjC Var(flag_plan9_extensions) | |
942 | Enable Plan 9 language extensions | |
943 | ||
fef3106c NB |
944 | fpreprocessed |
945 | C ObjC C++ ObjC++ | |
72de27ea | 946 | Treat the input file as already preprocessed |
fef3106c | 947 | |
6ea2bd47 | 948 | fpretty-templates |
5498f011 | 949 | C++ ObjC++ Var(flag_pretty_templates) Init(1) |
6ea2bd47 JM |
950 | -fno-pretty-templates Do not pretty-print template specializations as the template signature followed by the arguments |
951 | ||
264fa2db | 952 | freplace-objc-classes |
5498f011 | 953 | ObjC ObjC++ Var(flag_replace_objc_classes) |
264fa2db ZL |
954 | Used in Fix-and-Continue mode to indicate that object files may be swapped in at runtime |
955 | ||
fef3106c NB |
956 | frepo |
957 | C++ ObjC++ | |
bae92bf3 | 958 | Enable automatic template instantiation |
fef3106c NB |
959 | |
960 | frtti | |
5498f011 | 961 | C++ ObjC++ Optimization Var(flag_rtti) Init(1) |
bae92bf3 | 962 | Generate run time type descriptor information |
fef3106c NB |
963 | |
964 | fshort-double | |
5498f011 | 965 | C ObjC C++ ObjC++ Optimization Var(flag_short_double) |
5a170a05 | 966 | Use the same size for double as for float |
fef3106c NB |
967 | |
968 | fshort-enums | |
5498f011 | 969 | C ObjC C++ ObjC++ Optimization Var(flag_short_enums) |
5a170a05 | 970 | Use the narrowest integer type possible for enumeration types |
fef3106c NB |
971 | |
972 | fshort-wchar | |
5498f011 | 973 | C ObjC C++ ObjC++ Optimization Var(flag_short_wchar) |
5a170a05 | 974 | Force the underlying type for \"wchar_t\" to be \"unsigned short\" |
fef3106c | 975 | |
fef3106c | 976 | fsigned-bitfields |
5498f011 | 977 | C ObjC C++ ObjC++ Var(flag_signed_bitfields) Init(1) |
5a170a05 | 978 | When \"signed\" or \"unsigned\" is not given make the bitfield signed |
fef3106c NB |
979 | |
980 | fsigned-char | |
5498f011 | 981 | C ObjC C++ ObjC++ LTO Var(flag_signed_char) |
5a170a05 | 982 | Make \"char\" signed by default |
fef3106c NB |
983 | |
984 | fsquangle | |
2d2bd949 | 985 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
986 | |
987 | fstats | |
5498f011 | 988 | C++ ObjC++ Var(flag_detailed_statistics) |
bae92bf3 | 989 | Display statistics accumulated during compilation |
fef3106c | 990 | |
cbb4feb3 JM |
991 | fstrict-enums |
992 | C++ ObjC++ Optimization Var(flag_strict_enums) | |
993 | Assume that values of enumeration type are always within the minimum range of that type | |
994 | ||
fef3106c | 995 | fstrict-prototype |
2d2bd949 | 996 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c NB |
997 | |
998 | ftabstop= | |
7b086b11 | 999 | C ObjC C++ ObjC++ Joined RejectNegative UInteger |
72de27ea | 1000 | -ftabstop=<number> Distance between tab stops for column reporting |
fef3106c NB |
1001 | |
1002 | ftemplate-depth- | |
5de8299c | 1003 | C++ ObjC++ Joined RejectNegative Undocumented Alias(ftemplate-depth=) |
124e0d27 MLI |
1004 | |
1005 | ftemplate-depth= | |
c22cacf3 | 1006 | C++ ObjC++ Joined RejectNegative UInteger |
124e0d27 | 1007 | -ftemplate-depth=<number> Specify maximum template instantiation depth |
fef3106c NB |
1008 | |
1009 | fthis-is-variable | |
2d2bd949 | 1010 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
fef3106c | 1011 | |
40aac948 | 1012 | fthreadsafe-statics |
5498f011 | 1013 | C++ ObjC++ Optimization Var(flag_threadsafe_statics) Init(1) |
c85ce869 | 1014 | -fno-threadsafe-statics Do not generate thread-safe code for initializing local statics |
40aac948 | 1015 | |
fef3106c | 1016 | funsigned-bitfields |
f0036cca | 1017 | C ObjC C++ ObjC++ Var(flag_signed_bitfields, 0) |
5a170a05 | 1018 | When \"signed\" or \"unsigned\" is not given make the bitfield unsigned |
fef3106c NB |
1019 | |
1020 | funsigned-char | |
f0036cca | 1021 | C ObjC C++ ObjC++ LTO Var(flag_signed_char, 0) |
5a170a05 | 1022 | Make \"char\" unsigned by default |
fef3106c NB |
1023 | |
1024 | fuse-cxa-atexit | |
5498f011 | 1025 | C++ ObjC++ Var(flag_use_cxa_atexit) Init(DEFAULT_USE_CXA_ATEXIT) |
bae92bf3 | 1026 | Use __cxa_atexit to register destructors |
fef3106c | 1027 | |
c7b5e395 | 1028 | fuse-cxa-get-exception-ptr |
5498f011 | 1029 | C++ ObjC++ Var(flag_use_cxa_get_exception_ptr) Init(2) |
c7b5e395 GK |
1030 | Use __cxa_get_exception_ptr in exception handling |
1031 | ||
d7afec4b | 1032 | fvisibility-inlines-hidden |
d0b07283 | 1033 | C++ ObjC++ |
d7afec4b ND |
1034 | Marks all inlined methods as having hidden visibility |
1035 | ||
ddbfd28d GK |
1036 | fvisibility-ms-compat |
1037 | C++ ObjC++ Var(flag_visibility_ms_compat) | |
1038 | Changes visibility to match Microsoft Visual Studio by default | |
1039 | ||
fef3106c | 1040 | fvtable-gc |
2d2bd949 | 1041 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 1042 | No longer supported |
fef3106c NB |
1043 | |
1044 | fvtable-thunks | |
2d2bd949 | 1045 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 1046 | No longer supported |
fef3106c NB |
1047 | |
1048 | fweak | |
5498f011 | 1049 | C++ ObjC++ Var(flag_weak) Init(1) |
bae92bf3 | 1050 | Emit common-like symbols as weak symbols |
fef3106c | 1051 | |
e6cc3a24 ZW |
1052 | fwide-exec-charset= |
1053 | C ObjC C++ ObjC++ Joined RejectNegative | |
72de27ea | 1054 | -fwide-exec-charset=<cset> Convert all wide strings and character constants to character set <cset> |
e6cc3a24 | 1055 | |
b20d9f0c | 1056 | fworking-directory |
5498f011 | 1057 | C ObjC C++ ObjC++ Var(flag_working_directory) Init(-1) |
b20d9f0c AO |
1058 | Generate a #line directive pointing at the current working directory |
1059 | ||
fef3106c | 1060 | fxref |
2d2bd949 | 1061 | C++ ObjC++ Ignore Warn(switch %qs is no longer supported) |
d1779886 | 1062 | No longer supported |
fef3106c | 1063 | |
264fa2db | 1064 | fzero-link |
5498f011 | 1065 | ObjC ObjC++ Var(flag_zero_link) |
264fa2db ZL |
1066 | Generate lazy class lookup (via objc_getClass()) for use in Zero-Link mode |
1067 | ||
fef3106c | 1068 | gen-decls |
5498f011 | 1069 | ObjC ObjC++ Var(flag_gen_declaration) |
f2ac9964 | 1070 | Dump declarations to a .decl file |
fef3106c | 1071 | |
39ef6592 LC |
1072 | femit-struct-debug-baseonly |
1073 | C ObjC C++ ObjC++ | |
1074 | -femit-struct-debug-baseonly Aggressive reduced debug info for structs | |
1075 | ||
1076 | femit-struct-debug-reduced | |
1077 | C ObjC C++ ObjC++ | |
1078 | -femit-struct-debug-reduced Conservative reduced debug info for structs | |
1079 | ||
1080 | femit-struct-debug-detailed= | |
1081 | C ObjC C++ ObjC++ Joined | |
1082 | -femit-struct-debug-detailed=<spec-list> Detailed reduced debug info for structs | |
1083 | ||
fef3106c | 1084 | idirafter |
61ff2bdc | 1085 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 1086 | -idirafter <dir> Add <dir> to the end of the system include path |
fef3106c NB |
1087 | |
1088 | imacros | |
61ff2bdc | 1089 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
72de27ea | 1090 | -imacros <file> Accept definition of macros in <file> |
fef3106c | 1091 | |
2b6dd222 JM |
1092 | imultilib |
1093 | C ObjC C++ ObjC++ Joined Separate | |
f94e1d66 | 1094 | -imultilib <dir> Set <dir> to be the multilib include subdirectory |
2b6dd222 | 1095 | |
fef3106c | 1096 | include |
61ff2bdc | 1097 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing filename after %qs) |
72de27ea | 1098 | -include <file> Include the contents of <file> before other files |
fef3106c NB |
1099 | |
1100 | iprefix | |
1101 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1102 | -iprefix <path> Specify <path> as a prefix for next two options |
fef3106c NB |
1103 | |
1104 | isysroot | |
61ff2bdc | 1105 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 1106 | -isysroot <dir> Set <dir> to be the system root directory |
fef3106c NB |
1107 | |
1108 | isystem | |
61ff2bdc | 1109 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
72de27ea | 1110 | -isystem <dir> Add <dir> to the start of the system include path |
fef3106c | 1111 | |
4bed3787 | 1112 | iquote |
61ff2bdc | 1113 | C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs) |
4bed3787 MS |
1114 | -iquote <dir> Add <dir> to the end of the quote include path |
1115 | ||
fef3106c NB |
1116 | iwithprefix |
1117 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1118 | -iwithprefix <dir> Add <dir> to the end of the system include path |
fef3106c NB |
1119 | |
1120 | iwithprefixbefore | |
1121 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1122 | -iwithprefixbefore <dir> Add <dir> to the end of the main include path |
fef3106c NB |
1123 | |
1124 | lang-asm | |
603349bf | 1125 | C Undocumented RejectDriver |
fef3106c | 1126 | |
e200444e JM |
1127 | no-integrated-cpp |
1128 | Driver | |
1129 | ||
fef3106c NB |
1130 | nostdinc |
1131 | C ObjC C++ ObjC++ | |
72de27ea | 1132 | Do not search standard system include directories (those specified with -isystem will still be used) |
fef3106c NB |
1133 | |
1134 | nostdinc++ | |
72de27ea NB |
1135 | C++ ObjC++ |
1136 | Do not search standard system include directories for C++ | |
fef3106c NB |
1137 | |
1138 | o | |
1139 | C ObjC C++ ObjC++ Joined Separate | |
72de27ea | 1140 | ; Documented in common.opt |
fef3106c NB |
1141 | |
1142 | pedantic | |
1143 | C ObjC C++ ObjC++ | |
72de27ea | 1144 | ; Documented in common.opt |
fef3106c NB |
1145 | |
1146 | pedantic-errors | |
1147 | C ObjC C++ ObjC++ | |
72de27ea | 1148 | ; Documented in common.opt |
fef3106c NB |
1149 | |
1150 | print-objc-runtime-info | |
1151 | ObjC ObjC++ | |
f2ac9964 | 1152 | Generate C header of platform-specific features |
fef3106c NB |
1153 | |
1154 | remap | |
1155 | C ObjC C++ ObjC++ | |
72de27ea | 1156 | Remap file names when including files |
fef3106c NB |
1157 | |
1158 | std=c++98 | |
1159 | C++ ObjC++ | |
c7dc8804 JM |
1160 | Conform to the ISO 1998 C++ standard revised by the 2003 technical corrigendum |
1161 | ||
1162 | std=c++03 | |
1163 | C++ ObjC++ Alias(std=c++98) | |
1164 | Conform to the ISO 1998 C++ standard revised by the 2003 technical corrigendum | |
fef3106c | 1165 | |
966541e3 DG |
1166 | std=c++0x |
1167 | C++ ObjC++ | |
1168 | Conform to the ISO 1998 C++ standard, with extensions that are likely to | |
1169 | become a part of the upcoming ISO C++ standard, dubbed C++0x. Note that the | |
1170 | extensions enabled by this mode are experimental and may be removed in | |
1171 | future releases of GCC. | |
1172 | ||
2778d766 JM |
1173 | std=c1x |
1174 | C ObjC | |
1175 | Conform to the ISO 201X C standard draft (experimental and incomplete support) | |
1176 | ||
fef3106c | 1177 | std=c89 |
5de8299c | 1178 | C ObjC Alias(std=c90) |
72de27ea | 1179 | Conform to the ISO 1990 C standard |
fef3106c | 1180 | |
7e1542b9 MLI |
1181 | std=c90 |
1182 | C ObjC | |
1183 | Conform to the ISO 1990 C standard | |
1184 | ||
fef3106c NB |
1185 | std=c99 |
1186 | C ObjC | |
72de27ea | 1187 | Conform to the ISO 1999 C standard |
fef3106c NB |
1188 | |
1189 | std=c9x | |
5de8299c | 1190 | C ObjC Alias(std=c99) |
72de27ea | 1191 | Deprecated in favor of -std=c99 |
fef3106c NB |
1192 | |
1193 | std=gnu++98 | |
1194 | C++ ObjC++ | |
72de27ea | 1195 | Conform to the ISO 1998 C++ standard with GNU extensions |
fef3106c | 1196 | |
966541e3 DG |
1197 | std=gnu++0x |
1198 | C++ ObjC++ | |
1199 | Conform to the ISO 1998 C++ standard, with GNU extensions and | |
1200 | extensions that are likely to become a part of the upcoming ISO C++ | |
1201 | standard, dubbed C++0x. Note that the extensions enabled by this mode | |
1202 | are experimental and may be removed in future releases of GCC. | |
1203 | ||
2778d766 JM |
1204 | std=gnu1x |
1205 | C ObjC | |
1206 | Conform to the ISO 201X C standard draft with GNU extensions (experimental and incomplete support) | |
1207 | ||
fef3106c | 1208 | std=gnu89 |
5de8299c | 1209 | C ObjC Alias(std=gnu90) |
72de27ea | 1210 | Conform to the ISO 1990 C standard with GNU extensions |
fef3106c | 1211 | |
7e1542b9 MLI |
1212 | std=gnu90 |
1213 | C ObjC | |
1214 | Conform to the ISO 1990 C standard with GNU extensions | |
1215 | ||
fef3106c NB |
1216 | std=gnu99 |
1217 | C ObjC | |
72de27ea | 1218 | Conform to the ISO 1999 C standard with GNU extensions |
fef3106c NB |
1219 | |
1220 | std=gnu9x | |
5de8299c | 1221 | C ObjC Alias(std=gnu99) |
72de27ea | 1222 | Deprecated in favor of -std=gnu99 |
fef3106c NB |
1223 | |
1224 | std=iso9899:1990 | |
5de8299c | 1225 | C ObjC Alias(std=c90) |
3a1e400e | 1226 | Conform to the ISO 1990 C standard |
fef3106c NB |
1227 | |
1228 | std=iso9899:199409 | |
1229 | C ObjC | |
72de27ea | 1230 | Conform to the ISO 1990 C standard as amended in 1994 |
fef3106c NB |
1231 | |
1232 | std=iso9899:1999 | |
5de8299c | 1233 | C ObjC Alias(std=c99) |
3a1e400e | 1234 | Conform to the ISO 1999 C standard |
fef3106c NB |
1235 | |
1236 | std=iso9899:199x | |
5de8299c | 1237 | C ObjC Alias(std=c99) |
3a1e400e | 1238 | Deprecated in favor of -std=iso9899:1999 |
fef3106c | 1239 | |
e200444e JM |
1240 | traditional |
1241 | Driver | |
1242 | ||
fef3106c NB |
1243 | traditional-cpp |
1244 | C ObjC C++ ObjC++ | |
72de27ea | 1245 | Enable traditional preprocessing |
fef3106c NB |
1246 | |
1247 | trigraphs | |
1248 | C ObjC C++ ObjC++ | |
72de27ea | 1249 | -trigraphs Support ISO C trigraphs |
fef3106c NB |
1250 | |
1251 | undef | |
5498f011 | 1252 | C ObjC C++ ObjC++ Var(flag_undef) |
72de27ea | 1253 | Do not predefine system-specific and GCC-specific macros |
fef3106c NB |
1254 | |
1255 | v | |
d5478783 JM |
1256 | C ObjC C++ ObjC++ |
1257 | ; Documented in common.opt | |
fef3106c NB |
1258 | |
1259 | w | |
1260 | C ObjC C++ ObjC++ | |
72de27ea | 1261 | ; Documented in common.opt |
e11a4ae5 NB |
1262 | |
1263 | ; This comment is to ensure we retain the blank line above. |