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* libc/include/sys/features.h: Allow for _XOPEN_SOURCE to have an 

empty definition.  Also add support for values of 500 or less.
This commit is contained in:
Corinna Vinschen 2010-03-17 17:13:00 +00:00
parent a24d322c76
commit 5e74a46f2f
2 changed files with 14 additions and 3 deletions
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5
newlib/ChangeLog
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@ -1,3 +1,8 @@
2010-03-17 Craig Howland <howland@LGSInnovations.com>
* libc/include/sys/features.h: Allow for _XOPEN_SOURCE to have an
empty definition. Also add support for values of 500 or less.
2010-03-09 Jeff Johnston <jjohnstn@redhat.com>
* libc/posix/telldir.c (dd_loccnt): Change start index to be 1

12
newlib/libc/include/sys/features.h
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@ -183,13 +183,19 @@ extern "C" {
/* Per the permission given in POSIX.1-2008 section 2.2.1, define
* _POSIX_C_SOURCE if _XOPEN_SOURCE is defined and _POSIX_C_SOURCE is not.
* (_XOPEN_SOURCE indicates that XSI extensions are desired by an application.)
* This permission is first granted in 2008, but it is used for 2001, anyway.
* This permission is first granted in 2008, but use it for older ones, also.
* Allow for _XOPEN_SOURCE to be empty (from the earliest form of it, before it
* was required to have specific values).
*/
#if !defined(_POSIX_C_SOURCE) && defined(_XOPEN_SOURCE)
#if _XOPEN_SOURCE == 700 /* POSIX.1-2008 */
#if (_XOPEN_SOURCE - 0) == 700 /* POSIX.1-2008 */
#define _POSIX_C_SOURCE 200809L
#elif _XOPEN_SOURCE == 600 /* POSIX.1-2001 */
#elif (_XOPEN_SOURCE - 0) == 600 /* POSIX.1-2001 or 2004 */
#define _POSIX_C_SOURCE 200112L
#elif (_XOPEN_SOURCE - 0) == 500 /* POSIX.1-1995 */
#define _POSIX_C_SOURCE 199506L
#elif (_XOPEN_SOURCE - 0) < 500 /* really old */
#define _POSIX_C_SOURCE 2
#endif
#endif