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-rw-r--r--src/rfkill.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/rfkill.c b/src/rfkill.c
index 6ad82797..3fdca2fb 100644
--- a/src/rfkill.c
+++ b/src/rfkill.c
@@ -23,6 +23,7 @@
#include <config.h>
#endif
+#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>