netdev - [PATCH 4/6] ping: fix building on older systems

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Message-Id: <1343835928-21541-4-git-send-email-vapier@gentoo.org>
Date:	Wed,  1 Aug 2012 11:45:26 -0400
From:	Mike Frysinger <vapier@...too.org>
To:	YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
Cc:	netdev@...r.kernel.org
Subject: [PATCH 4/6] ping: fix building on older systems

The SO_MARK define is somewhat recent (linux-2.6.25), so check for its
existence before we try to use it.

Signed-off-by: Mike Frysinger <vapier@...too.org>
---
 ping_common.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/ping_common.c b/ping_common.c
index 287d0e6..6fd252d 100644
--- a/ping_common.c
+++ b/ping_common.c
@@ -486,6 +486,7 @@ void setup(int icmp_sock)
 			fprintf(stderr, "Warning: no SO_TIMESTAMP support, falling back to SIOCGSTAMP\n");
 	}
 #endif
+#ifdef SO_MARK
 	if (options & F_MARK) {
 		if (setsockopt(icmp_sock, SOL_SOCKET, SO_MARK,
 				&mark, sizeof(mark)) == -1) {
@@ -499,6 +500,7 @@ void setup(int icmp_sock)
 #endif
 		}
 	}
+#endif
 
 	/* Set some SNDTIMEO to prevent blocking forever
 	 * on sends, when device is too slow or stalls. Just put limit
-- 
1.7.9.7

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