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-rw-r--r--udev-block-notify.c2
1 files changed, 2 insertions, 0 deletions
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>