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authorUlrich Drepper <drepper@redhat.com>2009-08-23 14:55:51 -0700
committerUlrich Drepper <drepper@redhat.com>2009-08-23 14:55:51 -0700
commitbdc7f5d76b4f284475595dddc79f0e0f9720ec20 (patch)
treee785157977597e50973af9d82b976296bd4be6bd /posix/unistd.h
parent2d094b739598d2e1718d3cc4c5af7e95787bd463 (diff)
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Also correct _POSIX2_* constants in case older standards are selected.
Diffstat (limited to 'posix/unistd.h')
-rw-r--r--posix/unistd.h24
1 files changed, 19 insertions, 5 deletions
diff --git a/posix/unistd.h b/posix/unistd.h
index 2de9a68..d9ecb5e 100644
--- a/posix/unistd.h
+++ b/posix/unistd.h
@@ -50,24 +50,38 @@ __BEGIN_DECLS
/* These are not #ifdef __USE_POSIX2 because they are
in the theoretically application-owned namespace. */
+#ifdef __USE_XOPEN2K8
+# define __POSIX2_THIS_VERSION 200809L
+/* The utilities on GNU systems also correspond to this version. */
+#elif defined __USE_XOPEN2K
+/* The utilities on GNU systems also correspond to this version. */
+# define __POSIX2_THIS_VERSION 200112L
+#elif defined __USE_POSIX199506
+/* The utilities on GNU systems also correspond to this version. */
+# define __POSIX2_THIS_VERSION 199506L
+#else
+/* The utilities on GNU systems also correspond to this version. */
+# define __POSIX2_THIS_VERSION 199209L
+#endif
+
/* The utilities on GNU systems also correspond to this version. */
-#define _POSIX2_VERSION 200809L
+#define _POSIX2_VERSION __POSIX2_THIS_VERSION
/* If defined, the implementation supports the
C Language Bindings Option. */
-#define _POSIX2_C_BIND 200809L
+#define _POSIX2_C_BIND __POSIX2_THIS_VERSION
/* If defined, the implementation supports the
C Language Development Utilities Option. */
-#define _POSIX2_C_DEV 200809L
+#define _POSIX2_C_DEV __POSIX2_THIS_VERSION
/* If defined, the implementation supports the
Software Development Utilities Option. */
-#define _POSIX2_SW_DEV 200809L
+#define _POSIX2_SW_DEV __POSIX2_THIS_VERSION
/* If defined, the implementation supports the
creation of locales with the localedef utility. */
-#define _POSIX2_LOCALEDEF 200809L
+#define _POSIX2_LOCALEDEF __POSIX2_THIS_VERSION
/* X/Open version number to which the library conforms. It is selectable. */
#ifdef __USE_XOPEN2K8