HelenOS sources

mktime            414 uspace/drv/time/cmos-rtc/cmos-rtc.c 	time_t r = mktime(t);
mktime            454 uspace/drv/time/cmos-rtc/cmos-rtc.c 	if ((norm_time = mktime(t)) < 0)
mktime            642 uspace/lib/c/generic/time.c 	ts->tv_sec = mktime(&time);
mktime             84 uspace/lib/c/include/time.h extern time_t mktime(struct tm *);
mktime             84 uspace/lib/posix/include/libc/time.h extern time_t mktime(struct tm *);