Somehow this got removed with f1d7505e40654a185843bdc8f1cf1fd00ab55c04. Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
@@ -20,6 +20,7 @@
#include <sched.h>
#include <time.h>
+#include <signal.h>
#include <bits/pthreadtypes.h>
#include <bits/initspin.h>