pollution: getdate_err extern int getdate_err; pollution: timezone extern long timezone __asm("_" "timezone" ); pollution: daylight extern int daylight; pollution: getdate struct tm *getdate(const char *); pollution: strptime char *strptime(const char * restrict, const char * restrict, struct tm * restrict) __asm("_" "strptime" ); pollution: asctime_r char *asctime_r(const struct tm * restrict, char * restrict); pollution: ctime_r char *ctime_r(const time_t *, char *); pollution: ts pollution: base __attribute__((availability(macosx,introduced=10.15))) __attribute__((availability(ios,introduced=13.0))) __attribute__((availability(tvos,introduced=13.0))) __attribute__((availability(watchos,introduced=6.0))) int timespec_get(struct timespec *ts, int base); pollution: CLOCKS_PER_SEC #define CLOCKS_PER_SEC ((clock_t)1000000)