OpenWrt
/branches/gl-inet/toolchain/musl/include/features.h |
@@ -0,0 +1,48 @@ |
#ifndef _FEATURES_H |
#define _FEATURES_H |
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#ifdef _ALL_SOURCE |
#define _GNU_SOURCE 1 |
#endif |
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#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 |
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#if __STDC_VERSION__ >= 199901L |
#define __restrict restrict |
#elif !defined(__GNUC__) |
#define __restrict |
#endif |
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#if __STDC_VERSION__ >= 199901L || defined(__cplusplus) |
#define __inline inline |
#endif |
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#if __STDC_VERSION__ >= 201112L |
#elif defined(__GNUC__) |
#define _Noreturn __attribute__((__noreturn__)) |
#else |
#define _Noreturn |
#endif |
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/* Convenience macros to test the versions of glibc and gcc. |
Use them like this: |
#if __GNUC_PREREQ (2,8) |
... code requiring gcc 2.8 or later ... |
#endif |
Note - they won't work for gcc1 or glibc1, since the _MINOR macros |
were not defined then. */ |
#if defined __GNUC__ && defined __GNUC_MINOR__ |
# define __GNUC_PREREQ(maj, min) \ |
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) |
#else |
# define __GNUC_PREREQ(maj, min) 0 |
#endif |
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#include <sys/glibc-types.h> |
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#endif |