--- busybox-1.21.0/libbb/time.c	2012-12-22 23:39:00.000000000 +0100
+++ src/libbb/time.c	2021-03-29 14:55:53.972136145 +0200
@@ -196,11 +196,9 @@
 #define CLOCK_MONOTONIC 1
 #endif
 
-/* libc has incredibly messy way of doing this,
- * typically requiring -lrt. We just skip all this mess */
 static void get_mono(struct timespec *ts)
 {
-	if (syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts))
+	if (clock_gettime(CLOCK_MONOTONIC, ts))
 		bb_error_msg_and_die("clock_gettime(MONOTONIC) failed");
 }
 unsigned long long FAST_FUNC monotonic_ns(void)