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>

diff --git a/tools/iio/Makefile b/tools/iio/Makefile
index 83813ad379f9aa408109c160ad03d3e78c40f63a..bf7ae6d6612a1b86948781c1f2cf9c575e3c54bf 100644 (file)
--- a/tools/iio/Makefile
+++ b/tools/iio/Makefile
@@ -1,5 +1,5 @@
 CC = gcc
-CFLAGS = -Wall -g
+CFLAGS = -Wall -g -D_GNU_SOURCE
 
 all: iio_event_monitor lsiio generic_buffer
 

diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c
index 01266c2556da995c6fe4a8d5ba4c95b42cbb7df0..8f8f058eb8074864e79e5327100241322df7f4e5 100644 (file)
--- a/tools/iio/generic_buffer.c
+++ b/tools/iio/generic_buffer.c
@@ -18,8 +18,6 @@
  *
  */
 
-#define _GNU_SOURCE
-
 #include <unistd.h>
 #include <stdlib.h>
 #include <dirent.h>

diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c
index f19cff19900ec4d723cdf19cf9be9fda26a3cfde..427c271ac0d655988a54c30f475572927592916b 100644 (file)
--- a/tools/iio/iio_event_monitor.c
+++ b/tools/iio/iio_event_monitor.c
@@ -16,8 +16,6 @@
  *
  */
 
-#define _GNU_SOURCE
-
 #include <unistd.h>
 #include <stdlib.h>
 #include <stdbool.h>