From 976d9ab112bdef7b25827f576b33068704df78ee Mon Sep 17 00:00:00 2001
From: Roberta Dobrescu <roberta.dobrescu@gmail.com>
Date: Thu, 26 Feb 2015 10:49:26 +0200
Subject: [PATCH] tools: iio: Define _GNU_SOURCE in Makefile

Definition of _GNU_SOURCE is needed to get rid of some warnings, such
as:
warning: implicit declaration of function `asprintf'.

generic_buffer.c and iio_event_monitor.c define _GNU_SOURCE,
but it is also needed in lsiio.c and iio_utils.c. For this reason,
this patch adds the definition in Makefile and removes it from where
it already exists.

Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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