hwclock: add fallback if SYS_settimeofday does not exist

It seems Musl-C removes SYS_settimeofday macro at all.

Addresses: https://github.com/karelzak/util-linux/commit/9c6139a72017cecb9145e46102152cb4f456ada6#commitcomment-41290951
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/sys-utils/hwclock.c b/sys-utils/hwclock.c
index ac4f9c7538c2f4efdb8763547dd53d956351b319..ac74549d744d318f371b33a2b985f45720e4e066 100644 (file)
--- a/sys-utils/hwclock.c
+++ b/sys-utils/hwclock.c
@@ -675,6 +675,10 @@ display_time(struct timeval hwctime)
  */
 #define __set_time(_tv)                settimeofday(_tv, NULL)
 
+#if !defined(SYS_settimeofday) && defined(__NR_settimeofday)
+# define SYS_settimeofday      __NR_settimeofday
+#endif
+
 static inline int __set_timezone(const struct timezone *tz)
 {
 #ifdef SYS_settimeofday