From 81906d23ddb67482c381ca946a7f6ec436dda7df Mon Sep 17 00:00:00 2001
From: Michael Kerrisk <mtk.manpages@gmail.com>
Date: Thu, 20 Feb 2014 11:04:37 +0100
Subject: [PATCH] linkat.2: AT_EMPTY_PATH is Linux-specific and requires
 _GNU_SOURCE

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---
 man2/linkat.2 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/man2/linkat.2 b/man2/linkat.2
index ed8a9b931..f30fa57b6 100644
--- a/man2/linkat.2
+++ b/man2/linkat.2
@@ -120,6 +120,10 @@ using file descriptors received via a UNIX domain socket
 .BR SCM_RIGHTS
 in
 .BR unix (7)).
+This flag is Linux-specific; define
+.B _GNU_SOURCE
+.\" Before glibc 2.16, defining _ATFILE_SOURCE sufficed
+to obtain its definition.
 .TP
 .BR AT_SYMLINK_FOLLOW " (since Linux 2.6.18)"
 By default,