From 733e68f5f065a6ea4416c673f39cd08712e5f121 Mon Sep 17 00:00:00 2001
From: Michael Kerrisk <mtk.manpages@gmail.com>
Date: Sat, 18 Sep 2010 11:10:20 +0200
Subject: [PATCH] sync.2: Fix feature test macro requirements

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---
 man2/sync.2 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/man2/sync.2 b/man2/sync.2
index 2835149ae..68086ea2a 100644
--- a/man2/sync.2
+++ b/man2/sync.2
@@ -45,7 +45,11 @@ Feature Test Macro Requirements for glibc (see
 .in
 .sp
 .BR sync ():
-_BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500
+.ad l
+.RS 4
+_BSD_SOURCE || _XOPEN_SOURCE >= 500 || _XOPEN_SOURCE\ &&\ _XOPEN_SOURCE_EXTENDED
+.RE
+.ad
 .SH DESCRIPTION
 .BR sync ()
 first commits inodes to buffers, and then buffers to disk.