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-rw-r--r--peripheral/main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/peripheral/main.c b/peripheral/main.c
index 93abe2042..75427ab3a 100644
--- a/peripheral/main.c
+++ b/peripheral/main.c
@@ -25,6 +25,7 @@
#include <config.h>
#endif
+#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include <unistd.h>