Define to 0 if not already defined.
# define O_TEXT _O_TEXT
#endif
+#if !defined O_DIRECT
+# define O_DIRECT 0
+#endif
+
+#if !defined O_DSYNC
+# define O_DSYNC 0
+#endif
+
#if !defined O_NDELAY
# define O_NDELAY 0
#endif
# define O_NOCTTY 0
#endif
+#if !defined O_NOFOLLOW
+# define O_NOFOLLOW 0
+#endif
+
+#if !defined O_RSYNC
+# define O_RSYNC 0
+#endif
+
+#if !defined O_SYNC
+# define O_SYNC 0
+#endif
+
#ifdef __BEOS__
/* BeOS 5 has O_BINARY and O_TEXT, but they have no effect. */
# undef O_BINARY