Fix compilation error

fpr · fpr · commit e09e57cda252 · 2017-09-07T17:50:44.000+02:00
Signed-off-by: fpr &lt;fabien.perroquin@wi6labs.com&gt;
diff --git a/cores/arduino/wiring.h b/cores/arduino/wiring.h
@@ -24,6 +24,8 @@
 extern "C" {
 #endif
 
+#include "clock.h"
+
 /**
  *
  */
