| #ifndef _FEATURES_H | |
| #define _FEATURES_H | |
| #if defined(_ALL_SOURCE) && !defined(_GNU_SOURCE) | |
| #define _GNU_SOURCE 1 | |
| #endif | |
| #if defined(_DEFAULT_SOURCE) && !defined(_BSD_SOURCE) | |
| #define _BSD_SOURCE 1 | |
| #endif | |
| #if !defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) \ | |
| && !defined(_XOPEN_SOURCE) && !defined(_GNU_SOURCE) \ | |
| && !defined(_BSD_SOURCE) && !defined(__STRICT_ANSI__) | |
| #define _BSD_SOURCE 1 | |
| #define _XOPEN_SOURCE 700 | |
| #endif | |
| #if __STDC_VERSION__ >= 199901L | |
| #define __restrict restrict | |
| #elif !defined(__GNUC__) | |
| #define __restrict | |
| #endif | |
| #if __STDC_VERSION__ >= 199901L || defined(__cplusplus) | |
| #define __inline inline | |
| #elif !defined(__GNUC__) | |
| #define __inline | |
| #endif | |
| #if __STDC_VERSION__ >= 201112L | |
| #elif defined(__GNUC__) | |
| #define _Noreturn __attribute__((__noreturn__)) | |
| #else | |
| #define _Noreturn | |
| #endif | |
| #endif |