diff options
Diffstat (limited to 'include/features.h')
| -rw-r--r-- | include/features.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/features.h b/include/features.h index f9820791b..3a9959360 100644 --- a/include/features.h +++ b/include/features.h @@ -40,6 +40,7 @@ _SVID_SOURCE ISO C, POSIX, and SVID things. _ATFILE_SOURCE Additional *at interfaces. _GNU_SOURCE All of the above, plus GNU extensions. + _DEFAULT_SOURCE Equivalent to defining _BSD_SOURCE and _SVID_SOURCE. _REENTRANT Select additionally reentrant object. _THREAD_SAFE Same as _REENTRANT, often used by other systems. _FORTIFY_SOURCE If set to numeric value > 0 additional security @@ -140,6 +141,19 @@ # define __GNUC_PREREQ(maj, min) 0 #endif +/* _DEFAULT_SOURCE is equivalent to defining _BSD_SOURCE and _SVID_SOURCE + * and vice versa. */ +#ifdef _DEFAULT_SOURCE +# undef _BSD_SOURCE +# define _BSD_SOURCE 1 +# undef _SVID_SOURCE +# define _SVID_SOURCE 1 +#endif + +#if defined _BSD_SOURCE || defined _SVID_SOURCE +# undef _DEFAULT_SOURCE +# define _DEFAULT_SOURCE 1 +#endif /* If _BSD_SOURCE was defined by the user, favor BSD over POSIX. */ #if defined _BSD_SOURCE && \ |