diff --git a/cores/arduino/wiring_private.h b/cores/arduino/wiring_private.h
new file mode 100644
index 0000000..8423d96
--- /dev/null
+++ b/cores/arduino/wiring_private.h
@@ -0,0 +1,20 @@
+#ifndef WiringPrivate_h
+#define WiringPrivate_h
+
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "Arduino.h"
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+
+typedef void (*voidFuncPtr)(void);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif