Re: POSIX-2024 and dirent.h

On Aug 14 13:53, Joel Sherrill wrote:
> Hi
> 
> POSIX Issue 8 (2024) adds the following to dirent.h:
> 
> DT_BLK, DT_CHR, DT_DIR, DT_FIFO, DT_LNK, DT_REG, DT_SOCK, DT_UNKNOWN,
> DT_MQ, DT_SEM, DT_SHM, and DT_TMO
> 
> These were not mentioned in POSIX Issue 7 (2018).
> 
> The default dirent.h and sys/dirent.h do not support anything. I only see
> the DT_ constants in the sys/rtems version.
> 
> The sys/rtems version has the constants inside a __BSD_VISIBLE guard.
> 
> I think these should also be under a (_POSIX_C_SOURCE >= 202405L) guard.
> 
> I am looking for concurrence and whether adding a check for 202405L has any
> impact on sys/features.h. POSIX-2018 (Issue 7) still specifies
> using 200809L for _POSIX_C_SOURCE.

Yes, this should be added to sys/features.h with a matching __POSIX_VISIBLE
which in turn should be used in the affected headers.  _GNU_SOURCE and
_DEFAULT_SOURCE should set _POSIX_C_SOURCE to 202405L. _XOPEN_SOURCE is
unaffected.


Thanks,
Corinna