#if 0 /// UNNEEDED by elogind
void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t);
int dual_timestamp_deserialize(const char *value, dual_timestamp *t);
+#endif // 0
+int timestamp_deserialize(const char *value, usec_t *timestamp);
+#if 0 /// UNNEEDED by elogind
int parse_timestamp(const char *t, usec_t *usec);
#endif // 0
int get_timezones(char ***l);
bool timezone_is_valid(const char *name);
+#endif // 0
+bool clock_boottime_supported(void);
+#if 0 /// UNNEEDED by elogind
clockid_t clock_boottime_or_monotonic(void);
#endif // 0