CYGPKG_LIBC_TIME
Dummy
Options for date and time related functions from <time.h>
CYGSEM_LIBC_TIME_CLOCK_WORKING
Boolean
This option controls whether clock() will actually try and determine the process time usage. With this option disabled, clock() does not disappear, but will permanently return (clock_t)-1 as mandated by the ISO C standard.
CYGSEM_LIBC_TIME_TIME_WORKING
Boolean
This option controls whether time() will actually try and determine the current calendar time. With this option disabled, time() does not disappear, but will permanently return (time_t)-1 as mandated by the ISO C standard.
CYGSEM_LIBC_TIME_SETTIME_WORKING
Boolean
This option controls whether cyg_libc_time_settime() will actually try and set the current calendar time. With this option disabled, cyg_libc_time_settime() does not disappear, but will permanently return an error.
CYGFUN_LIBC_TIME_POSIX
Boolean
Enabling this option allows the use of the following functions defined in POSIX 1003.1: asctime_r(), ctime_r(), gmtime_r(), and localtime_r().
CYGPKG_LIBC_TIME_ZONES
Dummy
These options control the default STandarD (STD) and Daylight Savings Time (DST) time offsets so that dates can be set correctly for the local environment.
CYGNUM_LIBC_TIME_DST_DEFAULT_STATE
Count
This option controls whether the initial time environment is set up as STD, DST or unknown. Use the value 1 for DST, 0 for STD, and (-1) for unknown. This can also be set at runtime using the cyg_libc_time_setdst() function.
CYGNUM_LIBC_TIME_STD_DEFAULT_OFFSET
Count
This option controls the offset from UTC in seconds when in local Standard Time. This value can be positive or negative. It can also be set at run time using the cyg_libc_time_setzoneoffsets() function.
CYGNUM_LIBC_TIME_DST_DEFAULT_OFFSET
Count
This option controls the offset from UTC in seconds when in local Daylight Savings Time. This value can be positive or negative. It can also be set at run time using the cyg_libc_time_setzoneoffsets() function.
CYGPKG_LIBC_TIME_INLINES
Dummy
These options control whether certain functions are available in inline form. This may lead to faster code at the expense of code space. But for some functions, or some functions with constant arguments, it may in fact lead to smaller code.
CYGIMP_LIBC_TIME_ASCTIME_INLINE
Boolean
Allow the asctime() function to be inlined
CYGIMP_LIBC_TIME_CTIME_INLINE
Boolean
Allow the ctime() function to be inlined
CYGIMP_LIBC_TIME_DIFFTIME_INLINE
Boolean
Allow the difftime() function to be inlined
CYGIMP_LIBC_TIME_GMTIME_INLINE
Boolean
Allow the gmtime() function to be inlined
CYGIMP_LIBC_TIME_LOCALTIME_INLINE
Boolean
Allow the localtime() function to be inlined
CYGIMP_LIBC_TIME_MKTIME_INLINE
Boolean
Allow the mktime() function to be inlined
CYGIMP_LIBC_TIME_ASCTIME_R_INLINE
Boolean
Allow the asctime_r() function to be inlined
CYGIMP_LIBC_TIME_CTIME_R_INLINE
Boolean
Allow the ctime_r() function to be inlined
CYGIMP_LIBC_TIME_GMTIME_R_INLINE
Boolean
Allow the gmtime_r() function to be inlined
CYGIMP_LIBC_TIME_LOCALTIME_R_INLINE
Boolean
Allow the localtime_r() function to be inlined
CYGNUM_LIBC_TIME_CLOCK_TRACE_LEVEL
Count
Trace verbosity level for debugging the clock() function. Increase this value to get additional trace output when tracing is enabled.