+/* Licensed under GPLv3+ - see LICENSE file for details */
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/wait.h>
+#include <signal.h>
#include <errno.h>
#include <assert.h>
#include <err.h>