tv_usec can be a 64 bit integer which causes a compiler warning: event.c: In function 'print_event': event.c:930:41: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'suseconds_t' {aka 'long long int'} [-Wformat=] 930 | printf("[%s.%06lu]: ", buf, args->ts.tv_usec); | ~~~~^ ~~~~~~~~~~~~~~~~ | | | | long unsigned int suseconds_t {aka long long int} | %06llu Signed-off-by: Stefan Weil <sw@xxxxxxxxxxx> --- I got this compiler warning when building gluon for arm_cortex-a7. event.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/event.c b/event.c index 4c37297..fa2e125 100644 --- a/event.c +++ b/event.c @@ -942,7 +942,7 @@ static int print_event(struct nl_msg *msg, void *arg) memset(buf, 0, 255); strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", tm); - printf("[%s.%06lu]: ", buf, args->ts.tv_usec); + printf("[%s.%06lu]: ", buf, (unsigned long )args->ts.tv_usec); } else { printf("%llu.%06llu: ", usecs/1000000, usecs % 1000000); } -- 2.37.1 (Apple Git-137.1)