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.
/* 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. */