Added O_DSYNC reserved word, introduced in iOS 13.2 SDK.
@@ -99,7 +99,7 @@ F_DUPFD F_GETFD F_SETFD F_GETFL F_SETFL F_GETOWN F_SETOWN
F_GETLK F_SETLK F_SETLKW FD_CLOEXEC F_RDLCK F_UNLCK F_WRLCK
SEEK_SET SEEK_CUR SEEK_END
O_RDONLY O_WRONLY O_RDWR O_ACCMODE O_NONBLOCK O_APPEND O_SYNC O_CREAT
-O_TRUNC O_EXCL O_NOCTTY O_NOFOLLOW
+O_TRUNC O_EXCL O_NOCTTY O_NOFOLLOW O_DSYNC
# Definitions from float.h
DBL_DIG
