Time-OlsonTZ-Data

 view release on metacpan or  search on metacpan

tzsrc/Makefile  view on Meta::CPAN

#	ctime_r and asctime_r incompatibly with POSIX.1-2017 and earlier
#	(Solaris when _POSIX_PTHREAD_SEMANTICS is not defined).
#  -DHAVE_INTTYPES_H=0 if <inttypes.h> does not work*+
#  -DHAVE_LINK=0 if your system lacks a link function
#  -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function
#  -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz
#	localtime_rz can make zdump significantly faster, but is nonstandard.
#  -DHAVE_MALLOC_ERRNO=0 if malloc etc. do not set errno on failure.
#  -DHAVE_POSIX_DECLS=0 if your system's include files do not declare
#	functions like 'link' or variables like 'tzname' required by POSIX
#  -DHAVE_SETENV=0 if your system lacks the setenv function
#  -DHAVE_SNPRINTF=0 if your system lacks the snprintf function+
#  -DHAVE_STDCKDINT_H=0 if neither <stdckdint.h> nor substitutes like
#	__builtin_add_overflow work*
#  -DHAVE_STDINT_H=0 if <stdint.h> does not work*+
#  -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l
#  -DHAVE_STRDUP=0 if your system lacks the strdup function
#  -DHAVE_STRTOLL=0 if your system lacks the strtoll function+
#  -DHAVE_SYMLINK=0 if your system lacks the symlink function
#  -DHAVE_SYS_STAT_H=0 if <sys/stat.h> does not work*
#  -DHAVE_TZSET=0 if your system lacks a tzset function

tzsrc/NEWS  view on Meta::CPAN

    On C23-compatible platforms tzcode no longer uses syntax like
    'static [[noreturn]] void usage(void);'.  Instead, it uses
    '[[noreturn]] static void usage(void);' as strict C23 requires.
    (Problem reported by Houge Langley.)

    The code's functions now constrain their arguments with the C
    'restrict' keyword consistently with their documentation.
    This may allow future optimizations.

    zdump again builds standalone with ckdadd and without setenv,
    fixing a bug introduced in 2022g.  (Problem reported by panic.)

    leapseconds.awk can now process a leap seconds file that never
    expires; this might be useful if leap seconds are discontinued.

  Changes to commentary

    tz-link.html has a new section "Coordinating with governments and
    distributors".  (Thanks to Neil Fuller for some of the text.)

tzsrc/tzselect.ksh  view on Meta::CPAN

  doselect Yes No
  ok=$select_result
  case $ok in
  Yes) break
  esac
do coord=
done

case $SHELL in
*csh) file=.login line="setenv TZ '$tz'";;
*)    file=.profile line="export TZ='$tz'"
esac

test -t 1 && say >&2 "
You can make this change permanent for yourself by appending the line
	$line
to the file '$file' in your home directory; then log out and log in again.

Here is that TZ value again, this time on standard output so that you
can use the $0 command in shell scripts:"

tzsrc/zdump.c  view on Meta::CPAN

# undef tzalloc
# undef tzfree
# define tzalloc zdump_tzalloc
# define tzfree zdump_tzfree

static timezone_t
tzalloc(char const *val)
{
# if HAVE_SETENV
  if (setenv("TZ", val, 1) != 0) {
    char const *e = strerror(errno);
    fprintf(stderr, _("%s: setenv: %s\n"), progname, e);
    exit(EXIT_FAILURE);
  }
  tzset();
  return &optarg;  /* Any valid non-null char ** will do.  */
# else
  enum { TZeqlen = 3 };
  static char const TZeq[TZeqlen] = "TZ=";
  static char **fakeenv;
  static ptrdiff_t fakeenv0size;
  void *freeable = NULL;