From a3541796ffca0ed4aa59e92be9a622ed140afdb8 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Wed, 3 Aug 2016 10:41:41 +0200
Subject: [PATCH] i2c-tools: fix feature test macros for glibc >= 2.20

Since glibc 2.20, the usage of _BSD_SOURCE is deprecated. Fix it like
described here:

https://sourceware.org/glibc/wiki/Release/2.20#Deprecation_of__BSD_SOURCE_and__SVID_SOURCE_feature_macros

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 tools/i2cbusses.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/i2cbusses.c b/tools/i2cbusses.c
index b3093aa..dad22ea 100644
--- a/tools/i2cbusses.c
+++ b/tools/i2cbusses.c
@@ -23,7 +23,8 @@
 */
 
 /* For strdup and snprintf */
-#define _BSD_SOURCE 1
+#define _BSD_SOURCE 1 /* for glibc <= 2.19 */
+#define _DEFAULT_SOURCE 1 /* for glibc >= 2.19 */
 
 #include <sys/types.h>
 #include <sys/stat.h>