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/* local header used by libc/time routines */
#include <_ansi.h>
#include <time.h>
#define SECSPERMIN 60L
#define MINSPERHOUR 60L
#define HOURSPERDAY 24L
#define SECSPERHOUR (SECSPERMIN * MINSPERHOUR)
#define SECSPERDAY (SECSPERHOUR * HOURSPERDAY)
#define DAYSPERWEEK 7
#define MONSPERYEAR 12
#define YEAR_BASE 1900
#define EPOCH_YEAR 1970
#define EPOCH_WDAY 4
#define EPOCH_YEARS_SINCE_LEAP 2
#define EPOCH_YEARS_SINCE_CENTURY 70
#define EPOCH_YEARS_SINCE_LEAP_CENTURY 370
#define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
int _EXFUN (__tzcalc_limits, (int __year));
extern _CONST int __month_lengths[2][MONSPERYEAR];
/* locks for multi-threading */
#ifdef __SINGLE_THREAD__
#define TZ_LOCK
#define TZ_UNLOCK
#else
#define TZ_LOCK __tz_lock()
#define TZ_UNLOCK __tz_unlock()
#endif
void _EXFUN(__tz_lock,(_VOID));
void _EXFUN(__tz_unlock,(_VOID));
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