From: Zhao Lei <zhaolei@cn.fujitsu.com>
Date: Thu, 9 Sep 2010 05:49:14 +0000 (+0800)
Subject: fix a compile fail by strndup in RHEL5 env
X-Git-Tag: upstream/0.20.rc1~149
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6c94ed24794d5a44a2ab4cde652e80eba05ade7a;p=platform%2Fupstream%2Fbtrfs-progs.git

fix a compile fail by strndup in RHEL5 env

When we compile btrfs-progs in RHEL5(with default gcc 4.1.2 and glibc-2.5-18),
we can get following error:

cc1: warnings being treated as errors
btrfs-list.c: In function 'ino_resolve':
btrfs-list.c:511: warning: implicit declaration of function 'strndup'
btrfs-list.c:511: warning: incompatible implicit declaration of built-in function 'strndup'
make: *** [btrfs-list.o] Error 1
...
cc1: warnings being treated as errors
btrfs.c: In function 'split_command':
btrfs.c:168: warning: implicit declaration of function 'strndup'
btrfs.c:168: warning: incompatible implicit declaration of built-in function 'strndup'
make: *** [btrfs-list.o] Error 1

We can add _GNU_SOURCE definition according man strndup.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
---

diff --git a/btrfs-list.c b/btrfs-list.c
index 7741705..9dedb5d 100644
--- a/btrfs-list.c
+++ b/btrfs-list.c
@@ -16,6 +16,7 @@
  * Boston, MA 021110-1307, USA.
  */
 
+#define _GNU_SOURCE
 #ifndef __CHECKER__
 #include <sys/ioctl.h>
 #include <sys/mount.h>
diff --git a/btrfs.c b/btrfs.c
index ab5e57f..46314cf 100644
--- a/btrfs.c
+++ b/btrfs.c
@@ -14,7 +14,7 @@
  * Boston, MA 021110-1307, USA.
  */
 
-
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>