manual: Document the O_NOFOLLOW open flag

diff --git a/manual/llio.texi b/manual/llio.texi
index fe590029151497dcd6960e5e156a16035eda41ea..6db4a708367b8f1131a1406ee7c2106c9d280ef7 100644 (file)
--- a/manual/llio.texi
+++ b/manual/llio.texi
@@ -3678,6 +3678,13 @@ a directory.  The @code{errno} variable is set to @code{ENOTDIR} for
 this error condition.
 @end deftypevr
 
+@deftypevr Macro int O_NOFOLLOW
+@standards{POSIX.1, fcntl.h}
+If set, the open operation fails if the final component of the file name
+refers to a symbolic link.  The @code{errno} variable is set to
+@code{ELOOP} for this error condition.
+@end deftypevr
+
 @deftypevr Macro int O_TMPFILE
 @standards{GNU, fcntl.h}
 If this flag is specified, functions in the @code{open} family create an