pollution: strptime
extern char *strptime(const char *restrict, const char *restrict, struct tm *restrict); 

pollution: timezone
extern long timezone; 

pollution: daylight
extern int daylight; 

pollution: getdate
extern struct tm *getdate(const char *); 

pollution: asctime_r
extern char *asctime_r(const struct tm *restrict, char *restrict); 

pollution: ctime_r
extern char *ctime_r(const time_t *, char *); 

pollution: getdate_err
#define getdate_err *(int *)_getdate_err_addr()

pollution: CLOCKS_PER_SEC
#define CLOCKS_PER_SEC 1000000L