[2/2] libc/features.h: Make code match documentation

  The documentation states that _GNU_SOURCE enables "all of the above
plus GNU extensions.". Furthermore the documentation states that
_DEFAULT_SOURCE would enable POSIX-1.2008 with BSD and SVr4 extensions.

The code did different things though:

* For _GNU_SOURCE it only enabled POSIX.1-2008 but it should have been the
  highest available one, POSIX.1-2024.
* For _DEFAULT_SOURCE it enabled POSIX.1-2024.

Let's use the highest available POSIX standard possible and fix
documentation where necessary.
---
 newlib/libc/include/sys/features.h | 413 ++++++++++++++---------------
 1 file changed, 205 insertions(+), 208 deletions(-)
  

This is OK also except for a couple of nits in the RTEMS section.

+#define _POSIX_VERSION 199309L

We are now tracking Issue 8 and have added most of the functions
that make sense for RTEMS to support.

+#define _POSIX_ASYNCHRONOUS_IO 1
+#define _POSIX_FSYNC 1
+#define _POSIX_MAPPED_FILES 1

We do not have mapped files. I see that those are mandatory in Issue 8
but the Austin Group folks seem to have forgotten the PSE profiles
and various tailorings of POSIX for embedded systems.

Please comment out _POSIX_MAPPED_FILES. That's what we have done
elsewhere in this block.

--joel

On Fri, Nov 14, 2025 at 4:02 PM Simon Barth <simon.barth@gmx.de> wrote:

> The documentation states that _GNU_SOURCE enables "all of the above
> plus GNU extensions.". Furthermore the documentation states that
> _DEFAULT_SOURCE would enable POSIX-1.2008 with BSD and SVr4 extensions.
>
> The code did different things though:
>
> * For _GNU_SOURCE it only enabled POSIX.1-2008 but it should have been the
>   highest available one, POSIX.1-2024.
> * For _DEFAULT_SOURCE it enabled POSIX.1-2024.
>
> Let's use the highest available POSIX standard possible and fix
> documentation where necessary.
> ---
>  newlib/libc/include/sys/features.h | 413 ++++++++++++++---------------
>  1 file changed, 205 insertions(+), 208 deletions(-)
>
> diff --git a/newlib/libc/include/sys/features.h
> b/newlib/libc/include/sys/features.h
> index 2a5da45ab..985fcd300 100644
> --- a/newlib/libc/include/sys/features.h
> +++ b/newlib/libc/include/sys/features.h
> @@ -29,16 +29,15 @@ extern "C" {
>
>  /* Macro to test version of GCC.  Returns 0 for non-GCC or too old GCC. */
>  #ifndef __GNUC_PREREQ
> -# 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
> +#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
>  #endif /* __GNUC_PREREQ */
>  /* Version with trailing underscores for BSD compatibility. */
> -#define        __GNUC_PREREQ__(ma, mi) __GNUC_PREREQ(ma, mi)
> -
> +#define __GNUC_PREREQ__(ma, mi) __GNUC_PREREQ(ma, mi)
>
>  /*
>   * Feature test macros control which symbols are exposed by the system
> @@ -105,7 +104,7 @@ extern "C" {
>   * _BSD_SOURCE (deprecated by _DEFAULT_SOURCE)
>   * _SVID_SOURCE (deprecated by _DEFAULT_SOURCE)
>   * _DEFAULT_SOURCE (or none of the above)
> - *     POSIX-1.2008 with BSD and SVr4 extensions
> + *     POSIX.1-2024 with BSD and SVr4 extensions
>   *
>   * _FORTIFY_SOURCE = 1, 2 or 3
>   *     Object Size Checking function wrappers
> @@ -113,65 +112,65 @@ extern "C" {
>
>  /* Remap the old name _ISOC2X_SOURCE to _ISOC23_SOURCE.  */
>  #ifdef _ISOC2X_SOURCE
> -# undef _ISOC2X_SOURCE
> -# undef _ISOC23_SOURCE
> -# define _ISOC23_SOURCE        1
> +#undef _ISOC2X_SOURCE
> +#undef _ISOC23_SOURCE
> +#define _ISOC23_SOURCE 1
>  #endif
>
>  #ifdef _GNU_SOURCE
>  #undef _ATFILE_SOURCE
> -#define        _ATFILE_SOURCE          1
> -#undef _DEFAULT_SOURCE
> -#define        _DEFAULT_SOURCE         1
> +#define _ATFILE_SOURCE 1
> +#undef _DEFAULT_SOURCE
> +#define _DEFAULT_SOURCE 1
>  #undef _ISOC99_SOURCE
> -#define        _ISOC99_SOURCE          1
> +#define _ISOC99_SOURCE 1
>  #undef _ISOC11_SOURCE
> -#define        _ISOC11_SOURCE          1
> +#define _ISOC11_SOURCE 1
>  #undef _ISOC23_SOURCE
> -#define        _ISOC23_SOURCE          1
> +#define _ISOC23_SOURCE 1
>  #undef _POSIX_SOURCE
> -#define        _POSIX_SOURCE           1
> +#define _POSIX_SOURCE 1
>  #undef _POSIX_C_SOURCE
> -#define        _POSIX_C_SOURCE         200809L
> +#define _POSIX_C_SOURCE 202405L
>  #undef _XOPEN_SOURCE
> -#define        _XOPEN_SOURCE           700
> +#define _XOPEN_SOURCE 700
>  #undef _XOPEN_SOURCE_EXTENDED
> -#define        _XOPEN_SOURCE_EXTENDED  1
> +#define _XOPEN_SOURCE_EXTENDED 1
>  #endif /* _GNU_SOURCE */
>
> -#if defined(_BSD_SOURCE) || defined(_SVID_SOURCE) || \
> -   (!defined(__STRICT_ANSI__) && !defined(_ANSI_SOURCE) && \
> -   !defined(_ISOC99_SOURCE) && !defined(_POSIX_SOURCE) && \
> -   !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE))
> +#if defined(_BSD_SOURCE) || defined(_SVID_SOURCE) ||
>      \
> +    (!defined(__STRICT_ANSI__) && !defined(_ANSI_SOURCE) &&
>       \
> +     !defined(_ISOC99_SOURCE) && !defined(_POSIX_SOURCE) &&
>       \
> +     !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE))
>  #undef _DEFAULT_SOURCE
> -#define        _DEFAULT_SOURCE         1
> +#define _DEFAULT_SOURCE 1
>  #endif
>
>  #if defined(_DEFAULT_SOURCE)
>  #undef _POSIX_SOURCE
> -#define        _POSIX_SOURCE           1
> +#define _POSIX_SOURCE 1
>  #undef _POSIX_C_SOURCE
> -#define        _POSIX_C_SOURCE         202405L
> +#define _POSIX_C_SOURCE 202405L
>  #endif
>
> -#if !defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) && \
> -  ((!defined(__STRICT_ANSI__) && !defined(_ANSI_SOURCE)) || \
> -   (_XOPEN_SOURCE - 0) >= 500)
> -#define        _POSIX_SOURCE           1
> +#if !defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) &&
>       \
> +    ((!defined(__STRICT_ANSI__) && !defined(_ANSI_SOURCE)) ||
>       \
> +     (_XOPEN_SOURCE - 0) >= 500)
> +#define _POSIX_SOURCE 1
>  #if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 700
> -#define        _POSIX_C_SOURCE         200809L
> +#define _POSIX_C_SOURCE 200809L
>  #elif (_XOPEN_SOURCE - 0) >= 600
> -#define        _POSIX_C_SOURCE         200112L
> +#define _POSIX_C_SOURCE 200112L
>  #elif (_XOPEN_SOURCE - 0) >= 500
> -#define        _POSIX_C_SOURCE         199506L
> +#define _POSIX_C_SOURCE 199506L
>  #elif (_XOPEN_SOURCE - 0) < 500
> -#define        _POSIX_C_SOURCE         2
> +#define _POSIX_C_SOURCE 2
>  #endif
>  #endif
>
>  #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200809
>  #undef _ATFILE_SOURCE
> -#define        _ATFILE_SOURCE          1
> +#define _ATFILE_SOURCE 1
>  #endif
>
>  /*
> @@ -268,102 +267,102 @@ extern "C" {
>   */
>
>  #ifdef _ATFILE_SOURCE
> -#define        __ATFILE_VISIBLE        1
> +#define __ATFILE_VISIBLE 1
>  #else
> -#define        __ATFILE_VISIBLE        0
> +#define __ATFILE_VISIBLE 0
>  #endif
>
>  #ifdef _DEFAULT_SOURCE
> -#define        __BSD_VISIBLE           1
> +#define __BSD_VISIBLE 1
>  #else
> -#define        __BSD_VISIBLE           0
> +#define __BSD_VISIBLE 0
>  #endif
>
>  #ifdef _GNU_SOURCE
> -#define        __GNU_VISIBLE           1
> +#define __GNU_VISIBLE 1
>  #else
> -#define        __GNU_VISIBLE           0
> +#define __GNU_VISIBLE 0
>  #endif
>
> -#if defined(_ISOC23_SOURCE) || \
> -  (__STDC_VERSION__ - 0) > 201710L || (__cplusplus - 0) >= 202002L
> -#define __ISO_C_VISIBLE                2020
> -#elif defined(_ISOC11_SOURCE) || \
> -  (__STDC_VERSION__ - 0) >= 201112L || (__cplusplus - 0) >= 201103L
> -#define        __ISO_C_VISIBLE         2011
> -#elif defined(_ISOC99_SOURCE) || (_POSIX_C_SOURCE - 0) >= 200112L || \
> -  (__STDC_VERSION__ - 0) >= 199901L || defined(__cplusplus)
> -#define        __ISO_C_VISIBLE         1999
> +#if defined(_ISOC23_SOURCE) || (__STDC_VERSION__ - 0) > 201710L ||
>      \
> +    (__cplusplus - 0) >= 202002L
> +#define __ISO_C_VISIBLE 2020
> +#elif defined(_ISOC11_SOURCE) || (__STDC_VERSION__ - 0) >= 201112L ||
>       \
> +    (__cplusplus - 0) >= 201103L
> +#define __ISO_C_VISIBLE 2011
> +#elif defined(_ISOC99_SOURCE) || (_POSIX_C_SOURCE - 0) >= 200112L ||
>      \
> +    (__STDC_VERSION__ - 0) >= 199901L || defined(__cplusplus)
> +#define __ISO_C_VISIBLE 1999
>  #else
> -#define        __ISO_C_VISIBLE         1990
> +#define __ISO_C_VISIBLE 1990
>  #endif
>
>  #if defined(_LARGEFILE_SOURCE) || (_XOPEN_SOURCE - 0) >= 500
> -#define        __LARGEFILE_VISIBLE     1
> +#define __LARGEFILE_VISIBLE 1
>  #else
> -#define        __LARGEFILE_VISIBLE     0
> +#define __LARGEFILE_VISIBLE 0
>  #endif
>
>  #ifdef _DEFAULT_SOURCE
> -#define        __MISC_VISIBLE          1
> +#define __MISC_VISIBLE 1
>  #else
> -#define        __MISC_VISIBLE          0
> +#define __MISC_VISIBLE 0
>  #endif
>
>  #if (_POSIX_C_SOURCE - 0) >= 202405L
> -#define        __POSIX_VISIBLE         202405
> +#define __POSIX_VISIBLE 202405
>  #elif (_POSIX_C_SOURCE - 0) >= 200809L
> -#define        __POSIX_VISIBLE         200809
> +#define __POSIX_VISIBLE 200809
>  #elif (_POSIX_C_SOURCE - 0) >= 200112L
> -#define        __POSIX_VISIBLE         200112
> +#define __POSIX_VISIBLE 200112
>  #elif (_POSIX_C_SOURCE - 0) >= 199506L
> -#define        __POSIX_VISIBLE         199506
> +#define __POSIX_VISIBLE 199506
>  #elif (_POSIX_C_SOURCE - 0) >= 199309L
> -#define        __POSIX_VISIBLE         199309
> +#define __POSIX_VISIBLE 199309
>  #elif (_POSIX_C_SOURCE - 0) >= 2 || defined(_XOPEN_SOURCE)
> -#define        __POSIX_VISIBLE         199209
> +#define __POSIX_VISIBLE 199209
>  #elif defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE)
> -#define        __POSIX_VISIBLE         199009
> +#define __POSIX_VISIBLE 199009
>  #else
> -#define        __POSIX_VISIBLE         0
> +#define __POSIX_VISIBLE 0
>  #endif
>
>  #ifdef _DEFAULT_SOURCE
> -#define        __SVID_VISIBLE          1
> +#define __SVID_VISIBLE 1
>  #else
> -#define        __SVID_VISIBLE          0
> +#define __SVID_VISIBLE 0
>  #endif
>
>  #if (_XOPEN_SOURCE - 0) >= 700
> -#define        __XSI_VISIBLE           700
> +#define __XSI_VISIBLE 700
>  #elif (_XOPEN_SOURCE - 0) >= 600
> -#define        __XSI_VISIBLE           600
> +#define __XSI_VISIBLE 600
>  #elif (_XOPEN_SOURCE - 0) >= 500
> -#define        __XSI_VISIBLE           500
> +#define __XSI_VISIBLE 500
>  #elif defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)
> -#define        __XSI_VISIBLE           4
> +#define __XSI_VISIBLE 4
>  #elif defined(_XOPEN_SOURCE)
> -#define        __XSI_VISIBLE           1
> +#define __XSI_VISIBLE 1
>  #else
> -#define        __XSI_VISIBLE           0
> +#define __XSI_VISIBLE 0
>  #endif
>
> -#if _FORTIFY_SOURCE > 0 && !defined(__cplusplus) && !defined(__lint__) &&
> \
> -   (__OPTIMIZE__ > 0 || defined(__clang__)) && __GNUC_PREREQ__(4, 1) && \
> -   !defined(_LIBC)
> -#  if _FORTIFY_SOURCE > 2 && defined(__has_builtin)
> -#    if __has_builtin(__builtin_dynamic_object_size)
> -#      define __SSP_FORTIFY_LEVEL 3
> -#    else
> -#      define __SSP_FORTIFY_LEVEL 2
> -#    endif
> -#  elif _FORTIFY_SOURCE > 1
> -#    define __SSP_FORTIFY_LEVEL 2
> -#  else
> -#    define __SSP_FORTIFY_LEVEL 1
> -#  endif
> +#if _FORTIFY_SOURCE > 0 && !defined(__cplusplus) && !defined(__lint__)
> &&      \
> +    (__OPTIMIZE__ > 0 || defined(__clang__)) && __GNUC_PREREQ__(4, 1) &&
>      \
> +    !defined(_LIBC)
> +#if _FORTIFY_SOURCE > 2 && defined(__has_builtin)
> +#if __has_builtin(__builtin_dynamic_object_size)
> +#define __SSP_FORTIFY_LEVEL 3
>  #else
> -#  define __SSP_FORTIFY_LEVEL 0
> +#define __SSP_FORTIFY_LEVEL 2
> +#endif
> +#elif _FORTIFY_SOURCE > 1
> +#define __SSP_FORTIFY_LEVEL 2
> +#else
> +#define __SSP_FORTIFY_LEVEL 1
> +#endif
> +#else
> +#define __SSP_FORTIFY_LEVEL 0
>  #endif
>
>  /*
> @@ -374,152 +373,150 @@ extern "C" {
>  #ifdef __rtems__
>  /* #define _POSIX_JOB_CONTROL          1 */
>  /* #define _POSIX_SAVED_IDS            1 */
> -#define _POSIX_VERSION                 199309L
> -#define _POSIX_ASYNCHRONOUS_IO         1
> -#define _POSIX_FSYNC                   1
> -#define _POSIX_MAPPED_FILES            1
> +#define _POSIX_VERSION 199309L
> +#define _POSIX_ASYNCHRONOUS_IO 1
> +#define _POSIX_FSYNC 1
> +#define _POSIX_MAPPED_FILES 1
>  /* #define _POSIX_MEMLOCK                      1 */
>  /* #define _POSIX_MEMLOCK_RANGE                1 */
>  /* #define _POSIX_MEMORY_PROTECTION    1 */
> -#define _POSIX_MESSAGE_PASSING         1
> -#define _POSIX_MONOTONIC_CLOCK         200112L
> -#define _POSIX_CLOCK_SELECTION         200112L
> -#define _POSIX_PRIORITIZED_IO          1
> -#define _POSIX_PRIORITY_SCHEDULING     1
> -#define _POSIX_REALTIME_SIGNALS                1
> -#define _POSIX_SEMAPHORES              1
> -#define _POSIX_SHARED_MEMORY_OBJECTS   1
> -#define _POSIX_SYNCHRONIZED_IO         1
> -#define _POSIX_TIMERS                  1
> -#define _POSIX_BARRIERS                 200112L
> -#define _POSIX_READER_WRITER_LOCKS      200112L
> -#define _POSIX_SPIN_LOCKS               200112L
> -
> +#define _POSIX_MESSAGE_PASSING 1
> +#define _POSIX_MONOTONIC_CLOCK 200112L
> +#define _POSIX_CLOCK_SELECTION 200112L
> +#define _POSIX_PRIORITIZED_IO 1
> +#define _POSIX_PRIORITY_SCHEDULING 1
> +#define _POSIX_REALTIME_SIGNALS 1
> +#define _POSIX_SEMAPHORES 1
> +#define _POSIX_SHARED_MEMORY_OBJECTS 1
> +#define _POSIX_SYNCHRONIZED_IO 1
> +#define _POSIX_TIMERS 1
> +#define _POSIX_BARRIERS 200112L
> +#define _POSIX_READER_WRITER_LOCKS 200112L
> +#define _POSIX_SPIN_LOCKS 200112L
>
>  /* In P1003.1b but defined by drafts at least as early as P1003.1c/D10  */
> -#define _POSIX_THREADS                         1
> -#define _POSIX_THREAD_ATTR_STACKADDR           1
> -#define _POSIX_THREAD_ATTR_STACKSIZE           1
> -#define _POSIX_THREAD_PRIORITY_SCHEDULING      1
> -#define _POSIX_THREAD_PRIO_INHERIT             1
> -#define _POSIX_THREAD_PRIO_PROTECT             1
> -#define _POSIX_THREAD_PROCESS_SHARED           1
> -#define _POSIX_THREAD_SAFE_FUNCTIONS           1
> +#define _POSIX_THREADS 1
> +#define _POSIX_THREAD_ATTR_STACKADDR 1
> +#define _POSIX_THREAD_ATTR_STACKSIZE 1
> +#define _POSIX_THREAD_PRIORITY_SCHEDULING 1
> +#define _POSIX_THREAD_PRIO_INHERIT 1
> +#define _POSIX_THREAD_PRIO_PROTECT 1
> +#define _POSIX_THREAD_PROCESS_SHARED 1
> +#define _POSIX_THREAD_SAFE_FUNCTIONS 1
>
>  /* P1003.4b/D8 defines the constants below this comment. */
> -#define _POSIX_SPAWN                           1
> -#define _POSIX_TIMEOUTS                                1
> -#define _POSIX_CPUTIME                         1
> -#define _POSIX_THREAD_CPUTIME                  1
> -#define _POSIX_SPORADIC_SERVER                 1
> -#define _POSIX_THREAD_SPORADIC_SERVER          1
> -#define _POSIX_DEVICE_CONTROL                  1
> -#define _POSIX_DEVCTL_DIRECTION                        1
> -#define _POSIX_INTERRUPT_CONTROL               1
> -#define _POSIX_ADVISORY_INFO                   1
> +#define _POSIX_SPAWN 1
> +#define _POSIX_TIMEOUTS 1
> +#define _POSIX_CPUTIME 1
> +#define _POSIX_THREAD_CPUTIME 1
> +#define _POSIX_SPORADIC_SERVER 1
> +#define _POSIX_THREAD_SPORADIC_SERVER 1
> +#define _POSIX_DEVICE_CONTROL 1
> +#define _POSIX_DEVCTL_DIRECTION 1
> +#define _POSIX_INTERRUPT_CONTROL 1
> +#define _POSIX_ADVISORY_INFO 1
>
>  /* UNIX98 added some new pthread mutex attributes */
> -#define _UNIX98_THREAD_MUTEX_ATTRIBUTES         1
> +#define _UNIX98_THREAD_MUTEX_ATTRIBUTES 1
>
>  /* POSIX 1003.26-2003 defined device control method */
> -#define _POSIX_26_VERSION                      200312L
> +#define _POSIX_26_VERSION 200312L
>
>  #endif
>
>  /* XMK loosely adheres to POSIX -- 1003.1 */
>  #ifdef __XMK__
> -#define _POSIX_THREADS                         1
> -#define _POSIX_THREAD_PRIORITY_SCHEDULING      1
> +#define _POSIX_THREADS 1
> +#define _POSIX_THREAD_PRIORITY_SCHEDULING 1
>  #endif
>
> -
>  #ifdef __svr4__
> -# define _POSIX_JOB_CONTROL     1
> -# define _POSIX_SAVED_IDS       1
> -# define _POSIX_VERSION 199009L
> +#define _POSIX_JOB_CONTROL 1
> +#define _POSIX_SAVED_IDS 1
> +#define _POSIX_VERSION 199009L
>  #endif
>
>  #ifdef __CYGWIN__
>
>  #if __POSIX_VISIBLE >= 202405
> -#define _POSIX_VERSION                         202405L
> -#define _POSIX2_VERSION                                202405L
> +#define _POSIX_VERSION 202405L
> +#define _POSIX2_VERSION 202405L
>  #elif __POSIX_VISIBLE >= 200809
> -#define _POSIX_VERSION                         200809L
> -#define _POSIX2_VERSION                                200809L
> +#define _POSIX_VERSION 200809L
> +#define _POSIX2_VERSION 200809L
>  #elif __POSIX_VISIBLE >= 200112
> -#define _POSIX_VERSION                         200112L
> -#define _POSIX2_VERSION                                200112L
> +#define _POSIX_VERSION 200112L
> +#define _POSIX2_VERSION 200112L
>  #elif __POSIX_VISIBLE >= 199506
> -#define _POSIX_VERSION                         199506L
> -#define _POSIX2_VERSION                                199506L
> +#define _POSIX_VERSION 199506L
> +#define _POSIX2_VERSION 199506L
>  #elif __POSIX_VISIBLE >= 199309
> -#define _POSIX_VERSION                         199309L
> -#define _POSIX2_VERSION                                199209L
> +#define _POSIX_VERSION 199309L
> +#define _POSIX2_VERSION 199209L
>  #elif __POSIX_VISIBLE >= 199209
> -#define _POSIX_VERSION                         199009L
> -#define _POSIX2_VERSION                                199209L
> +#define _POSIX_VERSION 199009L
> +#define _POSIX2_VERSION 199209L
>  #elif __POSIX_VISIBLE
> -#define _POSIX_VERSION                         199009L
> +#define _POSIX_VERSION 199009L
>  #endif
>  #if __XSI_VISIBLE >= 4
> -#define _XOPEN_VERSION                         __XSI_VISIBLE
> +#define _XOPEN_VERSION __XSI_VISIBLE
>  #endif
>
> -#define _POSIX_ADVISORY_INFO                   200809L
> -#define _POSIX_ASYNCHRONOUS_IO                 200809L
> -#define _POSIX_BARRIERS                                200809L
> -#define _POSIX_CHOWN_RESTRICTED                             1
> -#define _POSIX_CLOCK_SELECTION                 200809L
> -#define _POSIX_CPUTIME                         200809L
> -#define _POSIX_FSYNC                           200809L
> -#define _POSIX_IPV6                            200809L
> -#define _POSIX_JOB_CONTROL                          1
> -#define _POSIX_MAPPED_FILES                    200809L
> +#define _POSIX_ADVISORY_INFO 200809L
> +#define _POSIX_ASYNCHRONOUS_IO 200809L
> +#define _POSIX_BARRIERS 200809L
> +#define _POSIX_CHOWN_RESTRICTED 1
> +#define _POSIX_CLOCK_SELECTION 200809L
> +#define _POSIX_CPUTIME 200809L
> +#define _POSIX_FSYNC 200809L
> +#define _POSIX_IPV6 200809L
> +#define _POSIX_JOB_CONTROL 1
> +#define _POSIX_MAPPED_FILES 200809L
>  /* #define _POSIX_MEMLOCK                          -1 */
> -#define _POSIX_MEMLOCK_RANGE                   200809L
> -#define _POSIX_MEMORY_PROTECTION               200809L
> -#define _POSIX_MESSAGE_PASSING                 200809L
> -#define _POSIX_MONOTONIC_CLOCK                 200809L
> -#define _POSIX_NO_TRUNC                                     1
> +#define _POSIX_MEMLOCK_RANGE 200809L
> +#define _POSIX_MEMORY_PROTECTION 200809L
> +#define _POSIX_MESSAGE_PASSING 200809L
> +#define _POSIX_MONOTONIC_CLOCK 200809L
> +#define _POSIX_NO_TRUNC 1
>  /* #define _POSIX_PRIORITIZED_IO                   -1 */
> -#define _POSIX_PRIORITY_SCHEDULING             200809L
> -#define _POSIX_RAW_SOCKETS                     200809L
> -#define _POSIX_READER_WRITER_LOCKS             200809L
> -#define _POSIX_REALTIME_SIGNALS                        200809L
> -#define _POSIX_REGEXP                               1
> -#define _POSIX_SAVED_IDS                            1
> -#define _POSIX_SEMAPHORES                      200809L
> -#define _POSIX_SHARED_MEMORY_OBJECTS           200809L
> -#define _POSIX_SHELL                                1
> -#define _POSIX_SPAWN                           200809L
> -#define _POSIX_SPIN_LOCKS                      200809L
> +#define _POSIX_PRIORITY_SCHEDULING 200809L
> +#define _POSIX_RAW_SOCKETS 200809L
> +#define _POSIX_READER_WRITER_LOCKS 200809L
> +#define _POSIX_REALTIME_SIGNALS 200809L
> +#define _POSIX_REGEXP 1
> +#define _POSIX_SAVED_IDS 1
> +#define _POSIX_SEMAPHORES 200809L
> +#define _POSIX_SHARED_MEMORY_OBJECTS 200809L
> +#define _POSIX_SHELL 1
> +#define _POSIX_SPAWN 200809L
> +#define _POSIX_SPIN_LOCKS 200809L
>  /* #define _POSIX_SPORADIC_SERVER                  -1 */
> -#define _POSIX_SYNCHRONIZED_IO                 200809L
> -#define _POSIX_THREAD_ATTR_STACKADDR           200809L
> -#define _POSIX_THREAD_ATTR_STACKSIZE           200809L
> -#define _POSIX_THREAD_CPUTIME                  200809L
> +#define _POSIX_SYNCHRONIZED_IO 200809L
> +#define _POSIX_THREAD_ATTR_STACKADDR 200809L
> +#define _POSIX_THREAD_ATTR_STACKSIZE 200809L
> +#define _POSIX_THREAD_CPUTIME 200809L
>  /* #define _POSIX_THREAD_PRIO_INHERIT              -1 */
>  /* #define _POSIX_THREAD_PRIO_PROTECT              -1 */
> -#define _POSIX_THREAD_PRIORITY_SCHEDULING      200809L
> -#define _POSIX_THREAD_PROCESS_SHARED           200809L
> -#define _POSIX_THREAD_SAFE_FUNCTIONS           200809L
> +#define _POSIX_THREAD_PRIORITY_SCHEDULING 200809L
> +#define _POSIX_THREAD_PROCESS_SHARED 200809L
> +#define _POSIX_THREAD_SAFE_FUNCTIONS 200809L
>  /* #define _POSIX_THREAD_SPORADIC_SERVER           -1 */
> -#define _POSIX_THREADS                         200809L
> -#define _POSIX_TIMEOUTS                                200809L
> -#define _POSIX_TIMERS                          200809L
> +#define _POSIX_THREADS 200809L
> +#define _POSIX_TIMEOUTS 200809L
> +#define _POSIX_TIMERS 200809L
>  /* #define _POSIX_TRACE                                    -1 */
>  /* #define _POSIX_TRACE_EVENT_FILTER               -1 */
>  /* #define _POSIX_TRACE_INHERIT                            -1 */
>  /* #define _POSIX_TRACE_LOG                        -1 */
>  /* #define _POSIX_TYPED_MEMORY_OBJECTS             -1 */
> -#define _POSIX_VDISABLE                                   '\0'
> +#define _POSIX_VDISABLE '\0'
>
>  #if __POSIX_VISIBLE >= 2
> -#define _POSIX2_C_VERSION                      _POSIX2_VERSION
> -#define _POSIX2_C_BIND                         _POSIX2_VERSION
> -#define _POSIX2_C_DEV                          _POSIX2_VERSION
> -#define _POSIX2_CHAR_TERM                      _POSIX2_VERSION
> +#define _POSIX2_C_VERSION _POSIX2_VERSION
> +#define _POSIX2_C_BIND _POSIX2_VERSION
> +#define _POSIX2_C_DEV _POSIX2_VERSION
> +#define _POSIX2_CHAR_TERM _POSIX2_VERSION
>  /* #define _POSIX2_FORT_DEV                        -1 */
>  /* #define _POSIX2_FORT_RUN                        -1 */
>  /* #define _POSIX2_LOCALEDEF                       -1 */
> @@ -529,36 +526,36 @@ extern "C" {
>  /* #define _POSIX2_PBS_LOCATE                      -1 */
>  /* #define _POSIX2_PBS_MESSAGE                     -1 */
>  /* #define _POSIX2_PBS_TRACK                       -1 */
> -#define _POSIX2_SW_DEV                         _POSIX2_VERSION
> -#define _POSIX2_UPE                            _POSIX2_VERSION
> +#define _POSIX2_SW_DEV _POSIX2_VERSION
> +#define _POSIX2_UPE _POSIX2_VERSION
>  #endif /* __POSIX_VISIBLE >= 2 */
>
> -#define _POSIX_V6_ILP32_OFF32                      -1
> +#define _POSIX_V6_ILP32_OFF32 -1
>  #ifdef __LP64__
> -#define _POSIX_V6_ILP32_OFFBIG                     -1
> -#define _POSIX_V6_LP64_OFF64                        1
> -#define _POSIX_V6_LPBIG_OFFBIG                      1
> +#define _POSIX_V6_ILP32_OFFBIG -1
> +#define _POSIX_V6_LP64_OFF64 1
> +#define _POSIX_V6_LPBIG_OFFBIG 1
>  #else
> -#define _POSIX_V6_ILP32_OFFBIG                      1
> -#define _POSIX_V6_LP64_OFF64                       -1
> -#define _POSIX_V6_LPBIG_OFFBIG                     -1
> +#define _POSIX_V6_ILP32_OFFBIG 1
> +#define _POSIX_V6_LP64_OFF64 -1
> +#define _POSIX_V6_LPBIG_OFFBIG -1
>  #endif
> -#define _POSIX_V7_ILP32_OFF32                  _POSIX_V6_ILP32_OFF32
> -#define _POSIX_V7_ILP32_OFFBIG                 _POSIX_V6_ILP32_OFFBIG
> -#define _POSIX_V7_LP64_OFF64                   _POSIX_V6_LP64_OFF64
> -#define _POSIX_V7_LPBIG_OFFBIG                 _POSIX_V6_LPBIG_OFFBIG
> -#define _XBS5_ILP32_OFF32                      _POSIX_V6_ILP32_OFF32
> -#define _XBS5_ILP32_OFFBIG                     _POSIX_V6_ILP32_OFFBIG
> -#define _XBS5_LP64_OFF64                       _POSIX_V6_LP64_OFF64
> -#define _XBS5_LPBIG_OFFBIG                     _POSIX_V6_LPBIG_OFFBIG
> +#define _POSIX_V7_ILP32_OFF32 _POSIX_V6_ILP32_OFF32
> +#define _POSIX_V7_ILP32_OFFBIG _POSIX_V6_ILP32_OFFBIG
> +#define _POSIX_V7_LP64_OFF64 _POSIX_V6_LP64_OFF64
> +#define _POSIX_V7_LPBIG_OFFBIG _POSIX_V6_LPBIG_OFFBIG
> +#define _XBS5_ILP32_OFF32 _POSIX_V6_ILP32_OFF32
> +#define _XBS5_ILP32_OFFBIG _POSIX_V6_ILP32_OFFBIG
> +#define _XBS5_LP64_OFF64 _POSIX_V6_LP64_OFF64
> +#define _XBS5_LPBIG_OFFBIG _POSIX_V6_LPBIG_OFFBIG
>
>  #if __XSI_VISIBLE
> -#define _XOPEN_CRYPT                                1
> -#define _XOPEN_ENH_I18N                                     1
> +#define _XOPEN_CRYPT 1
> +#define _XOPEN_ENH_I18N 1
>  /* #define _XOPEN_LEGACY                           -1 */
>  /* #define _XOPEN_REALTIME                         -1 */
>  /* #define _XOPEN_REALTIME_THREADS                 -1 */
> -#define _XOPEN_SHM                                  1
> +#define _XOPEN_SHM 1
>  /* #define _XOPEN_STREAMS                          -1 */
>  /* #define _XOPEN_UNIX                             -1 */
>  #endif /* __XSI_VISIBLE */
> --
> 2.51.2
>
>