2 files changed, 3 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 4152182..6c7049f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 # udev-block-notify - Notify about udev block events
 
-CC	:= gcc
+CC	:= gcc -std=c11
 MD	:= markdown
 INSTALL	:= install
 RM	:= rm
diff --git a/udev-block-notify.c b/udev-block-notify.c
index e71c6c3..e05e13b 100644
--- a/udev-block-notify.c
+++ b/udev-block-notify.c
@@ -5,6 +5,8 @@
  * of the GNU General Public License, incorporated herein by reference.
  */
 
+#define _GNU_SOURCE
+
 #include <getopt.h>
 #include <stdio.h>
 #include <stdlib.h>