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f7a9f785 | 1 | /* Copyright (C) 1991-2016 Free Software Foundation, Inc. |
2c6fe0bd | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
2c6fe0bd | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
28f540f4 | 8 | |
2c6fe0bd UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 RM |
17 | |
18 | #ifndef _FEATURES_H | |
28f540f4 RM |
19 | #define _FEATURES_H 1 |
20 | ||
21 | /* These are defined by the user (or the compiler) | |
22 | to specify the desired environment: | |
23 | ||
d38cd08c | 24 | __STRICT_ANSI__ ISO Standard C. |
ec751a23 | 25 | _ISOC99_SOURCE Extensions to ISO C89 from ISO C99. |
d7809905 | 26 | _ISOC11_SOURCE Extensions to ISO C99 from ISO C11. |
48789000 | 27 | __STDC_WANT_LIB_EXT2__ Extensions to ISO C99 from TR 27431-2:2010. |
bf91be88 | 28 | __STDC_WANT_IEC_60559_BFP_EXT__ Extensions to ISO C11 from TS 18661-1:2014. |
28f540f4 | 29 | _POSIX_SOURCE IEEE Std 1003.1. |
6d52618b | 30 | _POSIX_C_SOURCE If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2; |
118bad87 | 31 | if >=199309L, add IEEE Std 1003.1b-1993; |
7a80496f UD |
32 | if >=199506L, add IEEE Std 1003.1c-1995; |
33 | if >=200112L, all of IEEE 1003.1-2004 | |
3e6b0a28 | 34 | if >=200809L, all of IEEE 1003.1-2008 |
a5a0310d | 35 | _XOPEN_SOURCE Includes POSIX and XPG things. Set to 500 if |
925e31d9 | 36 | Single Unix conformance is wanted, to 600 for the |
3e6b0a28 | 37 | sixth revision, to 700 for the seventh revision. |
2c6fe0bd | 38 | _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions. |
dfd2257a UD |
39 | _LARGEFILE_SOURCE Some more functions for correct standard I/O. |
40 | _LARGEFILE64_SOURCE Additional functionality from LFS for large files. | |
41 | _FILE_OFFSET_BITS=N Select default filesystem interface. | |
0b8f25bb | 42 | _ATFILE_SOURCE Additional *at interfaces. |
28f540f4 | 43 | _GNU_SOURCE All of the above, plus GNU extensions. |
c688b419 JM |
44 | _DEFAULT_SOURCE The default set of features (taking precedence over |
45 | __STRICT_ANSI__). | |
ec4b0518 UD |
46 | _REENTRANT Select additionally reentrant object. |
47 | _THREAD_SAFE Same as _REENTRANT, often used by other systems. | |
b5cc329c UD |
48 | _FORTIFY_SOURCE If set to numeric value > 0 additional security |
49 | measures are defined, according to level. | |
28f540f4 | 50 | |
c688b419 JM |
51 | The `-ansi' switch to the GNU C compiler, and standards conformance |
52 | options such as `-std=c99', define __STRICT_ANSI__. If none of | |
53 | these are defined, or if _DEFAULT_SOURCE is defined, the default is | |
c941736c JM |
54 | to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to |
55 | 200809L, as well as enabling miscellaneous functions from BSD and | |
56 | SVID. If more than one of these are defined, they accumulate. For | |
57 | example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together | |
58 | give you ISO C, 1003.1, and 1003.2, but nothing else. | |
28f540f4 RM |
59 | |
60 | These are defined by this file and are used by the | |
61 | header files to decide what to declare or define: | |
62 | ||
48789000 JM |
63 | __GLIBC_USE (F) Define things from feature set F. This is defined |
64 | to 1 or 0; the subsequent macros are either defined | |
65 | or undefined, and those tests should be moved to | |
66 | __GLIBC_USE. | |
d7809905 | 67 | __USE_ISOC11 Define ISO C11 things. |
ec751a23 | 68 | __USE_ISOC99 Define ISO C99 things. |
087722b8 | 69 | __USE_ISOC95 Define ISO C90 AMD1 (C95) things. |
28f540f4 RM |
70 | __USE_POSIX Define IEEE Std 1003.1 things. |
71 | __USE_POSIX2 Define IEEE Std 1003.2 things. | |
4a582094 UD |
72 | __USE_POSIX199309 Define IEEE Std 1003.1, and .1b things. |
73 | __USE_POSIX199506 Define IEEE Std 1003.1, .1b, .1c and .1i things. | |
2c6fe0bd UD |
74 | __USE_XOPEN Define XPG things. |
75 | __USE_XOPEN_EXTENDED Define X/Open Unix things. | |
a5a0310d | 76 | __USE_UNIX98 Define Single Unix V2 things. |
925e31d9 | 77 | __USE_XOPEN2K Define XPG6 things. |
f095bb72 | 78 | __USE_XOPEN2KXSI Define XPG6 XSI things. |
81489b2e | 79 | __USE_XOPEN2K8 Define XPG7 things. |
f095bb72 | 80 | __USE_XOPEN2K8XSI Define XPG7 XSI things. |
925e31d9 | 81 | __USE_LARGEFILE Define correct standard I/O things. |
dfd2257a UD |
82 | __USE_LARGEFILE64 Define LFS things with separate names. |
83 | __USE_FILE_OFFSET64 Define 64bit interface as default. | |
498afc54 | 84 | __USE_MISC Define things from 4.3BSD or System V Unix. |
0b8f25bb | 85 | __USE_ATFILE Define *at interfaces and AT_* constants for them. |
28f540f4 | 86 | __USE_GNU Define GNU extensions. |
aa910907 | 87 | __USE_REENTRANT Define reentrant/thread-safe *_r functions. |
b5cc329c | 88 | __USE_FORTIFY_LEVEL Additional security measures used, according to level. |
28f540f4 | 89 | |
d38cd08c UD |
90 | The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are |
91 | defined by this file unconditionally. `__GNU_LIBRARY__' is provided | |
92 | only for compatibility. All new code should use the other symbols | |
93 | to test for features. | |
28f540f4 | 94 | |
28f540f4 RM |
95 | All macros listed above as possibly being defined by this file are |
96 | explicitly undefined if they are not explicitly defined. | |
97 | Feature-test macros that are not defined by the user or compiler | |
98 | but are implied by the other feature-test macros defined (or by the | |
48789000 JM |
99 | lack of any definitions) are defined by the file. |
100 | ||
101 | ISO C feature test macros depend on the definition of the macro | |
102 | when an affected header is included, not when the first system | |
103 | header is included, and so they are handled in | |
104 | <bits/libc-header-start.h>, which does not have a multiple include | |
105 | guard. Feature test macros that can be handled from the first | |
106 | system header included are handled here. */ | |
28f540f4 RM |
107 | |
108 | ||
109 | /* Undefine everything, so we get a clean slate. */ | |
d7809905 | 110 | #undef __USE_ISOC11 |
ec751a23 | 111 | #undef __USE_ISOC99 |
087722b8 | 112 | #undef __USE_ISOC95 |
8fd8ff3b | 113 | #undef __USE_ISOCXX11 |
28f540f4 RM |
114 | #undef __USE_POSIX |
115 | #undef __USE_POSIX2 | |
6d52618b | 116 | #undef __USE_POSIX199309 |
4a582094 | 117 | #undef __USE_POSIX199506 |
2c6fe0bd UD |
118 | #undef __USE_XOPEN |
119 | #undef __USE_XOPEN_EXTENDED | |
dfd2257a | 120 | #undef __USE_UNIX98 |
24d6fe58 | 121 | #undef __USE_XOPEN2K |
f095bb72 | 122 | #undef __USE_XOPEN2KXSI |
3e6b0a28 | 123 | #undef __USE_XOPEN2K8 |
f095bb72 | 124 | #undef __USE_XOPEN2K8XSI |
dfd2257a UD |
125 | #undef __USE_LARGEFILE |
126 | #undef __USE_LARGEFILE64 | |
127 | #undef __USE_FILE_OFFSET64 | |
28f540f4 | 128 | #undef __USE_MISC |
0b8f25bb | 129 | #undef __USE_ATFILE |
28f540f4 | 130 | #undef __USE_GNU |
aa910907 | 131 | #undef __USE_REENTRANT |
b5cc329c | 132 | #undef __USE_FORTIFY_LEVEL |
a1470b6f | 133 | #undef __KERNEL_STRICT_NAMES |
28f540f4 | 134 | |
a1470b6f | 135 | /* Suppress kernel-name space pollution unless user expressedly asks |
2c6fe0bd | 136 | for it. */ |
a1470b6f RM |
137 | #ifndef _LOOSE_KERNEL_NAMES |
138 | # define __KERNEL_STRICT_NAMES | |
139 | #endif | |
28f540f4 | 140 | |
b5cc329c UD |
141 | /* Convenience macros to test the versions of glibc and gcc. |
142 | Use them like this: | |
143 | #if __GNUC_PREREQ (2,8) | |
144 | ... code requiring gcc 2.8 or later ... | |
145 | #endif | |
146 | Note - they won't work for gcc1 or glibc1, since the _MINOR macros | |
147 | were not defined then. */ | |
148 | #if defined __GNUC__ && defined __GNUC_MINOR__ | |
149 | # define __GNUC_PREREQ(maj, min) \ | |
150 | ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) | |
151 | #else | |
152 | # define __GNUC_PREREQ(maj, min) 0 | |
153 | #endif | |
154 | ||
48789000 JM |
155 | /* Whether to use feature set F. */ |
156 | #define __GLIBC_USE(F) __GLIBC_USE_ ## F | |
157 | ||
c941736c | 158 | /* _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for |
ade40b10 CD |
159 | _DEFAULT_SOURCE. If _DEFAULT_SOURCE is present we do not |
160 | issue a warning; the expectation is that the source is being | |
161 | transitioned to use the new macro. */ | |
162 | #if (defined _BSD_SOURCE || defined _SVID_SOURCE) \ | |
163 | && !defined _DEFAULT_SOURCE | |
c941736c JM |
164 | # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" |
165 | # undef _DEFAULT_SOURCE | |
166 | # define _DEFAULT_SOURCE 1 | |
167 | #endif | |
28f540f4 | 168 | |
59dd8641 RM |
169 | /* If _GNU_SOURCE was defined by the user, turn on all the other features. */ |
170 | #ifdef _GNU_SOURCE | |
e531ede5 UD |
171 | # undef _ISOC95_SOURCE |
172 | # define _ISOC95_SOURCE 1 | |
ec751a23 UD |
173 | # undef _ISOC99_SOURCE |
174 | # define _ISOC99_SOURCE 1 | |
d7809905 UD |
175 | # undef _ISOC11_SOURCE |
176 | # define _ISOC11_SOURCE 1 | |
5107cf1d UD |
177 | # undef _POSIX_SOURCE |
178 | # define _POSIX_SOURCE 1 | |
179 | # undef _POSIX_C_SOURCE | |
3e6b0a28 | 180 | # define _POSIX_C_SOURCE 200809L |
5107cf1d | 181 | # undef _XOPEN_SOURCE |
3e6b0a28 | 182 | # define _XOPEN_SOURCE 700 |
5107cf1d UD |
183 | # undef _XOPEN_SOURCE_EXTENDED |
184 | # define _XOPEN_SOURCE_EXTENDED 1 | |
dfd2257a UD |
185 | # undef _LARGEFILE64_SOURCE |
186 | # define _LARGEFILE64_SOURCE 1 | |
c688b419 JM |
187 | # undef _DEFAULT_SOURCE |
188 | # define _DEFAULT_SOURCE 1 | |
0b8f25bb RM |
189 | # undef _ATFILE_SOURCE |
190 | # define _ATFILE_SOURCE 1 | |
59dd8641 | 191 | #endif |
28f540f4 | 192 | |
c688b419 | 193 | /* If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined, |
498afc54 | 194 | define _DEFAULT_SOURCE. */ |
c688b419 JM |
195 | #if (defined _DEFAULT_SOURCE \ |
196 | || (!defined __STRICT_ANSI__ \ | |
197 | && !defined _ISOC99_SOURCE \ | |
198 | && !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE \ | |
498afc54 | 199 | && !defined _XOPEN_SOURCE)) |
c688b419 JM |
200 | # undef _DEFAULT_SOURCE |
201 | # define _DEFAULT_SOURCE 1 | |
28f540f4 RM |
202 | #endif |
203 | ||
d7809905 UD |
204 | /* This is to enable the ISO C11 extension. */ |
205 | #if (defined _ISOC11_SOURCE \ | |
206 | || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 201112L)) | |
c0e87cc0 UD |
207 | # define __USE_ISOC11 1 |
208 | #endif | |
d7809905 UD |
209 | |
210 | /* This is to enable the ISO C99 extension. */ | |
211 | #if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \ | |
47a81620 | 212 | || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)) |
ec751a23 | 213 | # define __USE_ISOC99 1 |
2f6d1f1b UD |
214 | #endif |
215 | ||
087722b8 | 216 | /* This is to enable the ISO C90 Amendment 1:1995 extension. */ |
d7809905 | 217 | #if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \ |
087722b8 UD |
218 | || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199409L)) |
219 | # define __USE_ISOC95 1 | |
220 | #endif | |
221 | ||
8fd8ff3b UD |
222 | /* This is to enable compatibility for ISO C++11. |
223 | ||
224 | So far g++ does not provide a macro. Check the temporary macro for | |
225 | now, too. */ | |
226 | #if ((defined __cplusplus && __cplusplus >= 201103L) \ | |
227 | || defined __GXX_EXPERIMENTAL_CXX0X__) | |
228 | # define __USE_ISOCXX11 1 | |
229 | #endif | |
230 | ||
c688b419 JM |
231 | /* If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE |
232 | is defined, use POSIX.1-2008 (or another version depending on | |
233 | _XOPEN_SOURCE). */ | |
234 | #ifdef _DEFAULT_SOURCE | |
235 | # if !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE | |
236 | # define __USE_POSIX_IMPLICITLY 1 | |
237 | # endif | |
238 | # undef _POSIX_SOURCE | |
239 | # define _POSIX_SOURCE 1 | |
240 | # undef _POSIX_C_SOURCE | |
241 | # define _POSIX_C_SOURCE 200809L | |
242 | #endif | |
f248238c JM |
243 | #if ((!defined __STRICT_ANSI__ \ |
244 | || (defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 500)) \ | |
245 | && !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE) | |
5107cf1d | 246 | # define _POSIX_SOURCE 1 |
925e31d9 | 247 | # if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 500 |
5107cf1d | 248 | # define _POSIX_C_SOURCE 2 |
1676aaef | 249 | # elif defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 600 |
a334319f | 250 | # define _POSIX_C_SOURCE 199506L |
3e6b0a28 | 251 | # elif defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 700 |
1676aaef | 252 | # define _POSIX_C_SOURCE 200112L |
3e6b0a28 UD |
253 | # else |
254 | # define _POSIX_C_SOURCE 200809L | |
5107cf1d | 255 | # endif |
2e6d6bac | 256 | # define __USE_POSIX_IMPLICITLY 1 |
28f540f4 RM |
257 | #endif |
258 | ||
f248238c JM |
259 | #if (defined _POSIX_SOURCE \ |
260 | || (defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 1) \ | |
261 | || defined _XOPEN_SOURCE) | |
5107cf1d | 262 | # define __USE_POSIX 1 |
28f540f4 RM |
263 | #endif |
264 | ||
d38cd08c | 265 | #if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 2 || defined _XOPEN_SOURCE |
5107cf1d | 266 | # define __USE_POSIX2 1 |
28f540f4 RM |
267 | #endif |
268 | ||
f248238c | 269 | #if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199309L |
9756dfe1 | 270 | # define __USE_POSIX199309 1 |
6d52618b UD |
271 | #endif |
272 | ||
f248238c | 273 | #if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199506L |
4a582094 UD |
274 | # define __USE_POSIX199506 1 |
275 | #endif | |
276 | ||
f248238c | 277 | #if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200112L |
23ae6451 | 278 | # define __USE_XOPEN2K 1 |
e531ede5 UD |
279 | # undef __USE_ISOC95 |
280 | # define __USE_ISOC95 1 | |
c163ee23 UD |
281 | # undef __USE_ISOC99 |
282 | # define __USE_ISOC99 1 | |
23ae6451 UD |
283 | #endif |
284 | ||
f248238c | 285 | #if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200809L |
3e6b0a28 UD |
286 | # define __USE_XOPEN2K8 1 |
287 | # undef _ATFILE_SOURCE | |
288 | # define _ATFILE_SOURCE 1 | |
289 | #endif | |
290 | ||
2c6fe0bd | 291 | #ifdef _XOPEN_SOURCE |
5107cf1d | 292 | # define __USE_XOPEN 1 |
219aa9e9 | 293 | # if (_XOPEN_SOURCE - 0) >= 500 |
5107cf1d | 294 | # define __USE_XOPEN_EXTENDED 1 |
a5a0310d | 295 | # define __USE_UNIX98 1 |
dfd2257a UD |
296 | # undef _LARGEFILE_SOURCE |
297 | # define _LARGEFILE_SOURCE 1 | |
925e31d9 | 298 | # if (_XOPEN_SOURCE - 0) >= 600 |
3e6b0a28 UD |
299 | # if (_XOPEN_SOURCE - 0) >= 700 |
300 | # define __USE_XOPEN2K8 1 | |
f095bb72 | 301 | # define __USE_XOPEN2K8XSI 1 |
3e6b0a28 | 302 | # endif |
219aa9e9 | 303 | # define __USE_XOPEN2K 1 |
f095bb72 | 304 | # define __USE_XOPEN2KXSI 1 |
e531ede5 UD |
305 | # undef __USE_ISOC95 |
306 | # define __USE_ISOC95 1 | |
91bc38d0 UD |
307 | # undef __USE_ISOC99 |
308 | # define __USE_ISOC99 1 | |
219aa9e9 | 309 | # endif |
a5a0310d UD |
310 | # else |
311 | # ifdef _XOPEN_SOURCE_EXTENDED | |
312 | # define __USE_XOPEN_EXTENDED 1 | |
313 | # endif | |
5107cf1d | 314 | # endif |
2c6fe0bd UD |
315 | #endif |
316 | ||
dfd2257a UD |
317 | #ifdef _LARGEFILE_SOURCE |
318 | # define __USE_LARGEFILE 1 | |
319 | #endif | |
320 | ||
321 | #ifdef _LARGEFILE64_SOURCE | |
322 | # define __USE_LARGEFILE64 1 | |
323 | #endif | |
324 | ||
325 | #if defined _FILE_OFFSET_BITS && _FILE_OFFSET_BITS == 64 | |
326 | # define __USE_FILE_OFFSET64 1 | |
327 | #endif | |
328 | ||
498afc54 | 329 | #if defined _DEFAULT_SOURCE |
5107cf1d | 330 | # define __USE_MISC 1 |
28f540f4 RM |
331 | #endif |
332 | ||
0b8f25bb RM |
333 | #ifdef _ATFILE_SOURCE |
334 | # define __USE_ATFILE 1 | |
335 | #endif | |
336 | ||
28f540f4 | 337 | #ifdef _GNU_SOURCE |
5107cf1d | 338 | # define __USE_GNU 1 |
28f540f4 RM |
339 | #endif |
340 | ||
d38cd08c | 341 | #if defined _REENTRANT || defined _THREAD_SAFE |
5107cf1d | 342 | # define __USE_REENTRANT 1 |
aa910907 RM |
343 | #endif |
344 | ||
05c2c961 RMG |
345 | #if defined _FORTIFY_SOURCE && _FORTIFY_SOURCE > 0 |
346 | # if !defined __OPTIMIZE__ || __OPTIMIZE__ <= 0 | |
347 | # warning _FORTIFY_SOURCE requires compiling with optimization (-O) | |
348 | # elif !__GNUC_PREREQ (4, 1) | |
349 | # warning _FORTIFY_SOURCE requires GCC 4.1 or later | |
350 | # elif _FORTIFY_SOURCE > 1 | |
a334319f | 351 | # define __USE_FORTIFY_LEVEL 2 |
faa26ad4 RM |
352 | # else |
353 | # define __USE_FORTIFY_LEVEL 1 | |
b5cc329c | 354 | # endif |
05c2c961 RMG |
355 | #endif |
356 | #ifndef __USE_FORTIFY_LEVEL | |
faa26ad4 | 357 | # define __USE_FORTIFY_LEVEL 0 |
b5cc329c UD |
358 | #endif |
359 | ||
ff3b3d82 JM |
360 | /* Get definitions of __STDC_* predefined macros, if the compiler has |
361 | not preincluded this header automatically. */ | |
362 | #include <stdc-predef.h> | |
91bc38d0 | 363 | |
ba1ffaa1 UD |
364 | /* This macro indicates that the installed library is the GNU C Library. |
365 | For historic reasons the value now is 6 and this will stay from now | |
366 | on. The use of this variable is deprecated. Use __GLIBC__ and | |
367 | __GLIBC_MINOR__ now (see below) when you want to test for a specific | |
368 | GNU C library version and use the values in <gnu/lib-names.h> to get | |
369 | the sonames of the shared libraries. */ | |
370 | #undef __GNU_LIBRARY__ | |
371 | #define __GNU_LIBRARY__ 6 | |
372 | ||
373 | /* Major and minor version number of the GNU C library package. Use | |
374 | these macros to test for features in specific releases. */ | |
375 | #define __GLIBC__ 2 | |
fdfc9260 | 376 | #define __GLIBC_MINOR__ 24 |
28f540f4 | 377 | |
f042f18f UD |
378 | #define __GLIBC_PREREQ(maj, min) \ |
379 | ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min)) | |
4360eafd | 380 | |
28f540f4 | 381 | /* This is here only because every header file already includes this one. */ |
edf5b2d7 | 382 | #ifndef __ASSEMBLER__ |
95589177 UD |
383 | # ifndef _SYS_CDEFS_H |
384 | # include <sys/cdefs.h> | |
385 | # endif | |
01cad722 UD |
386 | |
387 | /* If we don't have __REDIRECT, prototypes will be missing if | |
388 | __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */ | |
389 | # if defined __USE_FILE_OFFSET64 && !defined __REDIRECT | |
4152ed15 UD |
390 | # define __USE_LARGEFILE 1 |
391 | # define __USE_LARGEFILE64 1 | |
01cad722 UD |
392 | # endif |
393 | ||
eedbbe58 UD |
394 | #endif /* !ASSEMBLER */ |
395 | ||
396 | /* Decide whether we can define 'extern inline' functions in headers. */ | |
07c416ed | 397 | #if __GNUC_PREREQ (2, 7) && defined __OPTIMIZE__ \ |
de1c3ebb UD |
398 | && !defined __OPTIMIZE_SIZE__ && !defined __NO_INLINE__ \ |
399 | && defined __extern_inline | |
eedbbe58 | 400 | # define __USE_EXTERN_INLINES 1 |
edf5b2d7 | 401 | #endif |
28f540f4 | 402 | |
28f540f4 | 403 | |
ce460d04 RM |
404 | /* This is here only because every header file already includes this one. |
405 | Get the definitions of all the appropriate `__stub_FUNCTION' symbols. | |
406 | <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub | |
407 | that will always return failure (and set errno to ENOSYS). */ | |
408 | #include <gnu/stubs.h> | |
28f540f4 | 409 | |
28f540f4 | 410 | |
6ed0492f | 411 | #endif /* features.h */ |