--- mdadm-4.1/monitor.c.old 2018-10-01 18:26:06.000000000 +0000 +++ mdadm-4.1/monitor.c 2020-01-22 19:51:39.575877908 +0000 @@ -20,6 +20,7 @@ #include "mdadm.h" #include "mdmon.h" +#include <inttypes.h> #include <sys/syscall.h> #include <sys/select.h> #include <signal.h> @@ -447,7 +448,7 @@ } gettimeofday(&tv, NULL); - dprintf("(%d): %ld.%06ld state:%s prev:%s action:%s prev: %s start:%llu\n", + dprintf("(%d): %"PRId64".%06"PRId64" state:%s prev:%s action:%s prev: %s start:%llu\n", a->info.container_member, tv.tv_sec, tv.tv_usec, array_states[a->curr_state],