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Define _POSIX_VERSION correctly when older POSIX versions are selected.

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Ulrich Drepper
2009-08-23 12:27:09 -07:00
parent 003c9895a8
commit c6b6723e6b
2 changed files with 18 additions and 1 deletions
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ChangeLog
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@@ -1,5 +1,8 @@
2009-08-23 Ulrich Drepper <drepper@redhat.com>
* posix/unistd.h: Define _POSIX_VERSION correctly if older POSIX
versions are selected.
* stdio-common/printf_fp.c: ISO C expects to print the sign of NaN
as well.
* stdio-common/printf_fphex.c: Likewise.

16
posix/unistd.h
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@@ -30,8 +30,22 @@ __BEGIN_DECLS
/* These may be used to determine what facilities are present at compile time.
Their values can be obtained at run time from `sysconf'. */
#ifdef __USE_XOPEN2K8
/* POSIX Standard approved as ISO/IEC 9945-1 as of September 2008. */
#define _POSIX_VERSION 200809L
# define _POSIX_VERSION 200809L
#elif defined __USE_XOPEN2K
/* POSIX Standard approved as ISO/IEC 9945-1 as of December 2001. */
# define _POSIX_VERSION 200112L
#elif defined __USE_POSIX199506
/* POSIX Standard approved as ISO/IEC 9945-1 as of June 1995. */
# define _POSIX_VERSION 199506L
#elif defined __USE_POSIX199309
/* POSIX Standard approved as ISO/IEC 9945-1 as of September 1993. */
# define _POSIX_VERSION 199309L
#else
/* POSIX Standard approved as ISO/IEC 9945-1 as of September 1990. */
# define _POSIX_VERSION 199009L
#endif
/* These are not #ifdef __USE_POSIX2 because they are
in the theoretically application-owned namespace. */