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-rw-r--r--sysdeps/unix/sysv/linux/bits/fcntl.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/fcntl.h b/sysdeps/unix/sysv/linux/bits/fcntl.h
index f63e8ce4eb..53018b7dc7 100644
--- a/sysdeps/unix/sysv/linux/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/bits/fcntl.h
@@ -44,7 +44,7 @@
 /* For now Linux has synchronisity options for data and read operations.
    We define the symbols here but let them do the same as O_SYNS since
    this is a superset.  */
-#ifdef __USE_UNIX98
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
 # define O_DSYNC	O_SYNC	/* Synchronize data.  */
 # define O_RSYNC	O_SYNC	/* Synchronize read operations.  */
 #endif