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-rw-r--r--netlink-notify.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/netlink-notify.h b/netlink-notify.h
index 3ca7430..ced411d 100644
--- a/netlink-notify.h
+++ b/netlink-notify.h
@@ -8,6 +8,8 @@
#ifndef NETLINK_NOTIFY_H
#define NETLINK_NOTIFY_H
+#define _GNU_SOURCE
+
#include <asm/types.h>
#include <getopt.h>
#include <unistd.h>