Merge from gnulib

This incorporates:
2017-07-23 Rename module 'strftime' to 'nstrftime'
* admin/merge-gnulib (GNULIB_MODULES): Add nstrftime, remove strftime.
* build-aux/config.guess: Copy from gnulib.
* lib/nstrftime.c: Rename from lib/strftime.c.
* m4/nstrftime.m4: Rename from m4/strftime.m4.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.

1 files changed, 0 insertions, 1506 deletions

diff --git a/lib/strftime.c b/lib/strftime.c
deleted file mode 100644
index 99bee4ef978..00000000000
--- a/lib/strftime.c
+++ /dev/null
@@ -1,1506 +0,0 @@
-/* Copyright (C) 1991-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public
-   License as published by the Free Software Foundation; either
-   version 3 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifdef _LIBC
-# define USE_IN_EXTENDED_LOCALE_MODEL 1
-# define HAVE_STRUCT_ERA_ENTRY 1
-# define HAVE_TM_GMTOFF 1
-# define HAVE_TM_ZONE 1
-# define HAVE_TZNAME 1
-# define HAVE_TZSET 1
-# include "../locale/localeinfo.h"
-#else
-# include <config.h>
-# if FPRINTFTIME
-#  include "fprintftime.h"
-# else
-#  include "strftime.h"
-# endif
-# include "time-internal.h"
-#endif
-
-#include <ctype.h>
-#include <time.h>
-
-#if HAVE_TZNAME && !HAVE_DECL_TZNAME
-extern char *tzname[];
-#endif
-
-/* Do multibyte processing if multibyte encodings are supported, unless
-   multibyte sequences are safe in formats.  Multibyte sequences are
-   safe if they cannot contain byte sequences that look like format
-   conversion specifications.  The multibyte encodings used by the
-   C library on the various platforms (UTF-8, GB2312, GBK, CP936,
-   GB18030, EUC-TW, BIG5, BIG5-HKSCS, CP950, EUC-JP, EUC-KR, CP949,
-   SHIFT_JIS, CP932, JOHAB) are safe for formats, because the byte '%'
-   cannot occur in a multibyte character except in the first byte.
-
-   The DEC-HANYU encoding used on OSF/1 is not safe for formats, but
-   this encoding has never been seen in real-life use, so we ignore
-   it.  */
-#if !(defined __osf__ && 0)
-# define MULTIBYTE_IS_FORMAT_SAFE 1
-#endif
-#define DO_MULTIBYTE (! MULTIBYTE_IS_FORMAT_SAFE)
-
-#if DO_MULTIBYTE
-# include <wchar.h>
-  static const mbstate_t mbstate_zero;
-#endif
-
-#include <limits.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdbool.h>
-
-#ifndef FALLTHROUGH
-# if __GNUC__ < 7
-#  define FALLTHROUGH ((void) 0)
-# else
-#  define FALLTHROUGH __attribute__ ((__fallthrough__))
-# endif
-#endif
-
-#ifdef COMPILE_WIDE
-# include <endian.h>
-# define CHAR_T wchar_t
-# define UCHAR_T unsigned int
-# define L_(Str) L##Str
-# define NLW(Sym) _NL_W##Sym
-
-# define MEMCPY(d, s, n) __wmemcpy (d, s, n)
-# define STRLEN(s) __wcslen (s)
-
-#else
-# define CHAR_T char
-# define UCHAR_T unsigned char
-# define L_(Str) Str
-# define NLW(Sym) Sym
-
-# define MEMCPY(d, s, n) memcpy (d, s, n)
-# define STRLEN(s) strlen (s)
-
-#endif
-
-/* Shift A right by B bits portably, by dividing A by 2**B and
-   truncating towards minus infinity.  A and B should be free of side
-   effects, and B should be in the range 0 <= B <= INT_BITS - 2, where
-   INT_BITS is the number of useful bits in an int.  GNU code can
-   assume that INT_BITS is at least 32.
-
-   ISO C99 says that A >> B is implementation-defined if A < 0.  Some
-   implementations (e.g., UNICOS 9.0 on a Cray Y-MP EL) don't shift
-   right in the usual way when A < 0, so SHR falls back on division if
-   ordinary A >> B doesn't seem to be the usual signed shift.  */
-#define SHR(a, b)       \
-  (-1 >> 1 == -1        \
-   ? (a) >> (b)         \
-   : (a) / (1 << (b)) - ((a) % (1 << (b)) < 0))
-
-/* Bound on length of the string representing an integer type or expression T.
-   Subtract 1 for the sign bit if t is signed; log10 (2.0) < 146/485;
-   add 1 for integer division truncation; add 1 more for a minus sign
-   if needed.  */
-#define INT_STRLEN_BOUND(t) \
-  ((sizeof (t) * CHAR_BIT - 1) * 146 / 485 + 2)
-
-#define TM_YEAR_BASE 1900
-
-#ifndef __isleap
-/* Nonzero if YEAR is a leap year (every 4 years,
-   except every 100th isn't, and every 400th is).  */
-# define __isleap(year) \
-  ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-#endif
-
-
-#ifdef _LIBC
-# define mktime_z(tz, tm) mktime (tm)
-# define tzname __tzname
-# define tzset __tzset
-#endif
-
-#ifndef FPRINTFTIME
-# define FPRINTFTIME 0
-#endif
-
-#if FPRINTFTIME
-# define STREAM_OR_CHAR_T FILE
-# define STRFTIME_ARG(x) /* empty */
-#else
-# define STREAM_OR_CHAR_T CHAR_T
-# define STRFTIME_ARG(x) x,
-#endif
-
-#if FPRINTFTIME
-# define memset_byte(P, Len, Byte) \
-  do { size_t _i; for (_i = 0; _i < Len; _i++) fputc (Byte, P); } while (0)
-# define memset_space(P, Len) memset_byte (P, Len, ' ')
-# define memset_zero(P, Len) memset_byte (P, Len, '0')
-#elif defined COMPILE_WIDE
-# define memset_space(P, Len) (wmemset (P, L' ', Len), (P) += (Len))
-# define memset_zero(P, Len) (wmemset (P, L'0', Len), (P) += (Len))
-#else
-# define memset_space(P, Len) (memset (P, ' ', Len), (P) += (Len))
-# define memset_zero(P, Len) (memset (P, '0', Len), (P) += (Len))
-#endif
-
-#if FPRINTFTIME
-# define advance(P, N)
-#else
-# define advance(P, N) ((P) += (N))
-#endif
-
-#define add(n, f)                                                             \
-  do                                                                          \
-    {                                                                         \
-      size_t _n = (n);                                                        \
-      size_t _w = (width < 0 ? 0 : width);                                    \
-      size_t _incr = _n < _w ? _w : _n;                                       \
-      if (_incr >= maxsize - i)                                               \
-        return 0;                                                             \
-      if (p)                                                                  \
-        {                                                                     \
-          if (digits == 0 && _n < _w)                                         \
-            {                                                                 \
-              size_t _delta = width - _n;                                     \
-              if (pad == L_('0'))                                             \
-                memset_zero (p, _delta);                                      \
-              else                                                            \
-                memset_space (p, _delta);                                     \
-            }                                                                 \
-          f;                                                                  \
-          advance (p, _n);                                                    \
-        }                                                                     \
-      i += _incr;                                                             \
-    } while (0)
-
-#if FPRINTFTIME
-# define add1(C) add (1, fputc (C, p))
-#else
-# define add1(C) add (1, *p = C)
-#endif
-
-#if FPRINTFTIME
-# define cpy(n, s) \
-    add ((n),                                                                 \
-     do                                                                       \
-       {                                                                      \
-         if (to_lowcase)                                                      \
-           fwrite_lowcase (p, (s), _n);                                       \
-         else if (to_uppcase)                                                 \
-           fwrite_uppcase (p, (s), _n);                                       \
-         else                                                                 \
-           {                                                                  \
-             /* Ignore the value of fwrite.  The caller can determine whether \
-                an error occurred by inspecting ferror (P).  All known fwrite \
-                implementations set the stream's error indicator when they    \
-                fail due to ENOMEM etc., even though C11 and POSIX.1-2008 do  \
-                not require this.  */                                         \
-             fwrite (s, _n, 1, p);                                            \
-           }                                                                  \
-       }                                                                      \
-     while (0)                                                                \
-    )
-#else
-# define cpy(n, s)                                                            \
-    add ((n),                                                                 \
-         if (to_lowcase)                                                      \
-           memcpy_lowcase (p, (s), _n LOCALE_ARG);                            \
-         else if (to_uppcase)                                                 \
-           memcpy_uppcase (p, (s), _n LOCALE_ARG);                            \
-         else                                                                 \
-           MEMCPY ((void *) p, (void const *) (s), _n))
-#endif
-
-#ifdef COMPILE_WIDE
-# ifndef USE_IN_EXTENDED_LOCALE_MODEL
-#  undef __mbsrtowcs_l
-#  define __mbsrtowcs_l(d, s, l, st, loc) __mbsrtowcs (d, s, l, st)
-# endif
-# define widen(os, ws, l) \
-  {                                                                           \
-    mbstate_t __st;                                                           \
-    const char *__s = os;                                                     \
-    memset (&__st, '\0', sizeof (__st));                                      \
-    l = __mbsrtowcs_l (NULL, &__s, 0, &__st, loc);                            \
-    ws = (wchar_t *) alloca ((l + 1) * sizeof (wchar_t));                     \
-    (void) __mbsrtowcs_l (ws, &__s, l, &__st, loc);                           \
-  }
-#endif
-
-
-#if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL
-/* We use this code also for the extended locale handling where the
-   function gets as an additional argument the locale which has to be
-   used.  To access the values we have to redefine the _NL_CURRENT
-   macro.  */
-# define strftime               __strftime_l
-# define wcsftime               __wcsftime_l
-# undef _NL_CURRENT
-# define _NL_CURRENT(category, item) \
-  (current->values[_NL_ITEM_INDEX (item)].string)
-# define LOCALE_PARAM , __locale_t loc
-# define LOCALE_ARG , loc
-# define HELPER_LOCALE_ARG  , current
-#else
-# define LOCALE_PARAM
-# define LOCALE_ARG
-# ifdef _LIBC
-#  define HELPER_LOCALE_ARG , _NL_CURRENT_DATA (LC_TIME)
-# else
-#  define HELPER_LOCALE_ARG
-# endif
-#endif
-
-#ifdef COMPILE_WIDE
-# ifdef USE_IN_EXTENDED_LOCALE_MODEL
-#  define TOUPPER(Ch, L) __towupper_l (Ch, L)
-#  define TOLOWER(Ch, L) __towlower_l (Ch, L)
-# else
-#  define TOUPPER(Ch, L) towupper (Ch)
-#  define TOLOWER(Ch, L) towlower (Ch)
-# endif
-#else
-# ifdef USE_IN_EXTENDED_LOCALE_MODEL
-#  define TOUPPER(Ch, L) __toupper_l (Ch, L)
-#  define TOLOWER(Ch, L) __tolower_l (Ch, L)
-# else
-#  define TOUPPER(Ch, L) toupper (Ch)
-#  define TOLOWER(Ch, L) tolower (Ch)
-# endif
-#endif
-/* We don't use 'isdigit' here since the locale dependent
-   interpretation is not what we want here.  We only need to accept
-   the arabic digits in the ASCII range.  One day there is perhaps a
-   more reliable way to accept other sets of digits.  */
-#define ISDIGIT(Ch) ((unsigned int) (Ch) - L_('0') <= 9)
-
-#if FPRINTFTIME
-static void
-fwrite_lowcase (FILE *fp, const CHAR_T *src, size_t len)
-{
-  while (len-- > 0)
-    {
-      fputc (TOLOWER ((UCHAR_T) *src, loc), fp);
-      ++src;
-    }
-}
-
-static void
-fwrite_uppcase (FILE *fp, const CHAR_T *src, size_t len)
-{
-  while (len-- > 0)
-    {
-      fputc (TOUPPER ((UCHAR_T) *src, loc), fp);
-      ++src;
-    }
-}
-#else
-static CHAR_T *memcpy_lowcase (CHAR_T *dest, const CHAR_T *src,
-                               size_t len LOCALE_PARAM);
-
-static CHAR_T *
-memcpy_lowcase (CHAR_T *dest, const CHAR_T *src, size_t len LOCALE_PARAM)
-{
-  while (len-- > 0)
-    dest[len] = TOLOWER ((UCHAR_T) src[len], loc);
-  return dest;
-}
-
-static CHAR_T *memcpy_uppcase (CHAR_T *dest, const CHAR_T *src,
-                               size_t len LOCALE_PARAM);
-
-static CHAR_T *
-memcpy_uppcase (CHAR_T *dest, const CHAR_T *src, size_t len LOCALE_PARAM)
-{
-  while (len-- > 0)
-    dest[len] = TOUPPER ((UCHAR_T) src[len], loc);
-  return dest;
-}
-#endif
-
-
-#if ! HAVE_TM_GMTOFF
-/* Yield the difference between *A and *B,
-   measured in seconds, ignoring leap seconds.  */
-# define tm_diff ftime_tm_diff
-static int tm_diff (const struct tm *, const struct tm *);
-static int
-tm_diff (const struct tm *a, const struct tm *b)
-{
-  /* Compute intervening leap days correctly even if year is negative.
-     Take care to avoid int overflow in leap day calculations,
-     but it's OK to assume that A and B are close to each other.  */
-  int a4 = SHR (a->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (a->tm_year & 3);
-  int b4 = SHR (b->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (b->tm_year & 3);
-  int a100 = a4 / 25 - (a4 % 25 < 0);
-  int b100 = b4 / 25 - (b4 % 25 < 0);
-  int a400 = SHR (a100, 2);
-  int b400 = SHR (b100, 2);
-  int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
-  int years = a->tm_year - b->tm_year;
-  int days = (365 * years + intervening_leap_days
-              + (a->tm_yday - b->tm_yday));
-  return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
-                + (a->tm_min - b->tm_min))
-          + (a->tm_sec - b->tm_sec));
-}
-#endif /* ! HAVE_TM_GMTOFF */
-
-
-
-/* The number of days from the first day of the first ISO week of this
-   year to the year day YDAY with week day WDAY.  ISO weeks start on
-   Monday; the first ISO week has the year's first Thursday.  YDAY may
-   be as small as YDAY_MINIMUM.  */
-#define ISO_WEEK_START_WDAY 1 /* Monday */
-#define ISO_WEEK1_WDAY 4 /* Thursday */
-#define YDAY_MINIMUM (-366)
-static int iso_week_days (int, int);
-#ifdef __GNUC__
-__inline__
-#endif
-static int
-iso_week_days (int yday, int wday)
-{
-  /* Add enough to the first operand of % to make it nonnegative.  */
-  int big_enough_multiple_of_7 = (-YDAY_MINIMUM / 7 + 2) * 7;
-  return (yday
-          - (yday - wday + ISO_WEEK1_WDAY + big_enough_multiple_of_7) % 7
-          + ISO_WEEK1_WDAY - ISO_WEEK_START_WDAY);
-}
-
-
-/* When compiling this file, GNU applications can #define my_strftime
-   to a symbol (typically nstrftime) to get an extended strftime with
-   extra arguments TZ and NS.  */
-
-#if FPRINTFTIME
-# undef my_strftime
-# define my_strftime fprintftime
-#endif
-
-#ifdef my_strftime
-# undef HAVE_TZSET
-# define extra_args , tz, ns
-# define extra_args_spec , timezone_t tz, int ns
-#else
-# if defined COMPILE_WIDE
-#  define my_strftime wcsftime
-#  define nl_get_alt_digit _nl_get_walt_digit
-# else
-#  define my_strftime strftime
-#  define nl_get_alt_digit _nl_get_alt_digit
-# endif
-# define extra_args
-# define extra_args_spec
-/* We don't have this information in general.  */
-# define tz 1
-# define ns 0
-#endif
-
-static size_t __strftime_internal (STREAM_OR_CHAR_T *, STRFTIME_ARG (size_t)
-                                   const CHAR_T *, const struct tm *,
-                                   bool, bool *
-                                   extra_args_spec LOCALE_PARAM);
-
-/* Write information from TP into S according to the format
-   string FORMAT, writing no more that MAXSIZE characters
-   (including the terminating '\0') and returning number of
-   characters written.  If S is NULL, nothing will be written
-   anywhere, so to determine how many characters would be
-   written, use NULL for S and (size_t) -1 for MAXSIZE.  */
-size_t
-my_strftime (STREAM_OR_CHAR_T *s, STRFTIME_ARG (size_t maxsize)
-             const CHAR_T *format,
-             const struct tm *tp extra_args_spec LOCALE_PARAM)
-{
-  bool tzset_called = false;
-  return __strftime_internal (s, STRFTIME_ARG (maxsize) format, tp,
-                              false, &tzset_called extra_args LOCALE_ARG);
-}
-#if defined _LIBC && ! FPRINTFTIME
-libc_hidden_def (my_strftime)
-#endif
-
-/* Just like my_strftime, above, but with two more parameters.
-   UPCASE indicate that the result should be converted to upper case,
-   and *TZSET_CALLED indicates whether tzset has been called here.  */
-static size_t
-__strftime_internal (STREAM_OR_CHAR_T *s, STRFTIME_ARG (size_t maxsize)
-                     const CHAR_T *format,
-                     const struct tm *tp, bool upcase, bool *tzset_called
-                     extra_args_spec LOCALE_PARAM)
-{
-#if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL
-  struct __locale_data *const current = loc->__locales[LC_TIME];
-#endif
-#if FPRINTFTIME
-  size_t maxsize = (size_t) -1;
-#endif
-
-  int hour12 = tp->tm_hour;
-#ifdef _NL_CURRENT
-  /* We cannot make the following values variables since we must delay
-     the evaluation of these values until really needed since some
-     expressions might not be valid in every situation.  The 'struct tm'
-     might be generated by a strptime() call that initialized
-     only a few elements.  Dereference the pointers only if the format
-     requires this.  Then it is ok to fail if the pointers are invalid.  */
-# define a_wkday \
-  ((const CHAR_T *) (tp->tm_wday < 0 || tp->tm_wday > 6                      \
-                     ? "?" : _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday)))
-# define f_wkday \
-  ((const CHAR_T *) (tp->tm_wday < 0 || tp->tm_wday > 6                      \
-                     ? "?" : _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday)))
-# define a_month \
-  ((const CHAR_T *) (tp->tm_mon < 0 || tp->tm_mon > 11                       \
-                     ? "?" : _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon)))
-# define f_month \
-  ((const CHAR_T *) (tp->tm_mon < 0 || tp->tm_mon > 11                       \
-                     ? "?" : _NL_CURRENT (LC_TIME, NLW(MON_1) + tp->tm_mon)))
-# define ampm \
-  ((const CHAR_T *) _NL_CURRENT (LC_TIME, tp->tm_hour > 11                    \
-                                 ? NLW(PM_STR) : NLW(AM_STR)))
-
-# define aw_len STRLEN (a_wkday)
-# define am_len STRLEN (a_month)
-# define ap_len STRLEN (ampm)
-#endif
-#if HAVE_TZNAME
-  char **tzname_vec = tzname;
-#endif
-  const char *zone;
-  size_t i = 0;
-  STREAM_OR_CHAR_T *p = s;
-  const CHAR_T *f;
-#if DO_MULTIBYTE && !defined COMPILE_WIDE
-  const char *format_end = NULL;
-#endif
-
-#if ! defined _LIBC && ! HAVE_RUN_TZSET_TEST
-  /* Solaris 2.5.x and 2.6 tzset sometimes modify the storage returned
-     by localtime.  On such systems, we must either use the tzset and
-     localtime wrappers to work around the bug (which sets
-     HAVE_RUN_TZSET_TEST) or make a copy of the structure.  */
-  struct tm copy = *tp;
-  tp = &copy;
-#endif
-
-  zone = NULL;
-#if HAVE_TM_ZONE
-  /* The POSIX test suite assumes that setting
-     the environment variable TZ to a new value before calling strftime()
-     will influence the result (the %Z format) even if the information in
-     TP is computed with a totally different time zone.
-     This is bogus: though POSIX allows bad behavior like this,
-     POSIX does not require it.  Do the right thing instead.  */
-  zone = (const char *) tp->tm_zone;
-#endif
-#if HAVE_TZNAME
-  if (!tz)
-    {
-      if (! (zone && *zone))
-        zone = "GMT";
-    }
-  else
-    {
-# if !HAVE_TM_ZONE
-      /* Infer the zone name from *TZ instead of from TZNAME.  */
-      tzname_vec = tz->tzname_copy;
-# endif
-    }
-  /* The tzset() call might have changed the value.  */
-  if (!(zone && *zone) && tp->tm_isdst >= 0)
-    {
-      /* POSIX.1 requires that local time zone information be used as
-         though strftime called tzset.  */
-# if HAVE_TZSET
-      if (!*tzset_called)
-        {
-          tzset ();
-          *tzset_called = true;
-        }
-# endif
-      zone = tzname_vec[tp->tm_isdst != 0];
-    }
-#endif
-  if (! zone)
-    zone = "";
-
-  if (hour12 > 12)
-    hour12 -= 12;
-  else
-    if (hour12 == 0)
-      hour12 = 12;
-
-  for (f = format; *f != '\0'; ++f)
-    {
-      int pad = 0;              /* Padding for number ('-', '_', or 0).  */
-      int modifier;             /* Field modifier ('E', 'O', or 0).  */
-      int digits = 0;           /* Max digits for numeric format.  */
-      int number_value;         /* Numeric value to be printed.  */
-      unsigned int u_number_value; /* (unsigned int) number_value.  */
-      bool negative_number;     /* The number is negative.  */
-      bool always_output_a_sign; /* +/- should always be output.  */
-      int tz_colon_mask;        /* Bitmask of where ':' should appear.  */
-      const CHAR_T *subfmt;
-      CHAR_T sign_char;
-      CHAR_T *bufp;
-      CHAR_T buf[1
-                 + 2 /* for the two colons in a %::z or %:::z time zone */
-                 + (sizeof (int) < sizeof (time_t)
-                    ? INT_STRLEN_BOUND (time_t)
-                    : INT_STRLEN_BOUND (int))];
-      int width = -1;
-      bool to_lowcase = false;
-      bool to_uppcase = upcase;
-      size_t colons;
-      bool change_case = false;
-      int format_char;
-
-#if DO_MULTIBYTE && !defined COMPILE_WIDE
-      switch (*f)
-        {
-        case L_('%'):
-          break;
-
-        case L_('\b'): case L_('\t'): case L_('\n'):
-        case L_('\v'): case L_('\f'): case L_('\r'):
-        case L_(' '): case L_('!'): case L_('"'): case L_('#'): case L_('&'):
-        case L_('\''): case L_('('): case L_(')'): case L_('*'): case L_('+'):
-        case L_(','): case L_('-'): case L_('.'): case L_('/'): case L_('0'):
-        case L_('1'): case L_('2'): case L_('3'): case L_('4'): case L_('5'):
-        case L_('6'): case L_('7'): case L_('8'): case L_('9'): case L_(':'):
-        case L_(';'): case L_('<'): case L_('='): case L_('>'): case L_('?'):
-        case L_('A'): case L_('B'): case L_('C'): case L_('D'): case L_('E'):
-        case L_('F'): case L_('G'): case L_('H'): case L_('I'): case L_('J'):
-        case L_('K'): case L_('L'): case L_('M'): case L_('N'): case L_('O'):
-        case L_('P'): case L_('Q'): case L_('R'): case L_('S'): case L_('T'):
-        case L_('U'): case L_('V'): case L_('W'): case L_('X'): case L_('Y'):
-        case L_('Z'): case L_('['): case L_('\\'): case L_(']'): case L_('^'):
-        case L_('_'): case L_('a'): case L_('b'): case L_('c'): case L_('d'):
-        case L_('e'): case L_('f'): case L_('g'): case L_('h'): case L_('i'):
-        case L_('j'): case L_('k'): case L_('l'): case L_('m'): case L_('n'):
-        case L_('o'): case L_('p'): case L_('q'): case L_('r'): case L_('s'):
-        case L_('t'): case L_('u'): case L_('v'): case L_('w'): case L_('x'):
-        case L_('y'): case L_('z'): case L_('{'): case L_('|'): case L_('}'):
-        case L_('~'):
-          /* The C Standard requires these 98 characters (plus '%') to
-             be in the basic execution character set.  None of these
-             characters can start a multibyte sequence, so they need
-             not be analyzed further.  */
-          add1 (*f);
-          continue;
-
-        default:
-          /* Copy this multibyte sequence until we reach its end, find
-             an error, or come back to the initial shift state.  */
-          {
-            mbstate_t mbstate = mbstate_zero;
-            size_t len = 0;
-            size_t fsize;
-
-            if (! format_end)
-              format_end = f + strlen (f) + 1;
-            fsize = format_end - f;
-
-            do
-              {
-                size_t bytes = mbrlen (f + len, fsize - len, &mbstate);
-
-                if (bytes == 0)
-                  break;
-
-                if (bytes == (size_t) -2)
-                  {
-                    len += strlen (f + len);
-                    break;
-                  }
-
-                if (bytes == (size_t) -1)
-                  {
-                    len++;
-                    break;
-                  }
-
-                len += bytes;
-              }
-            while (! mbsinit (&mbstate));
-
-            cpy (len, f);
-            f += len - 1;
-            continue;
-          }
-        }
-
-#else /* ! DO_MULTIBYTE */
-
-      /* Either multibyte encodings are not supported, they are
-         safe for formats, so any non-'%' byte can be copied through,
-         or this is the wide character version.  */
-      if (*f != L_('%'))
-        {
-          add1 (*f);
-          continue;
-        }
-
-#endif /* ! DO_MULTIBYTE */
-
-      /* Check for flags that can modify a format.  */
-      while (1)
-        {
-          switch (*++f)
-            {
-              /* This influences the number formats.  */
-            case L_('_'):
-            case L_('-'):
-            case L_('0'):
-              pad = *f;
-              continue;
-
-              /* This changes textual output.  */
-            case L_('^'):
-              to_uppcase = true;
-              continue;
-            case L_('#'):
-              change_case = true;
-              continue;
-
-            default:
-              break;
-            }
-          break;
-        }
-
-      /* As a GNU extension we allow the field width to be specified.  */
-      if (ISDIGIT (*f))
-        {
-          width = 0;
-          do
-            {
-              if (width > INT_MAX / 10
-                  || (width == INT_MAX / 10 && *f - L_('0') > INT_MAX % 10))
-                /* Avoid overflow.  */
-                width = INT_MAX;
-              else
-                {
-                  width *= 10;
-                  width += *f - L_('0');
-                }
-              ++f;
-            }
-          while (ISDIGIT (*f));
-        }
-
-      /* Check for modifiers.  */
-      switch (*f)
-        {
-        case L_('E'):
-        case L_('O'):
-          modifier = *f++;
-          break;
-
-        default:
-          modifier = 0;
-          break;
-        }
-
-      /* Now do the specified format.  */
-      format_char = *f;
-      switch (format_char)
-        {
-#define DO_NUMBER(d, v) \
-          do                                                                  \
-            {                                                                 \
-              digits = d;                                                     \
-              number_value = v;                                               \
-              goto do_number;                                                 \
-            }                                                                 \
-          while (0)
-#define DO_SIGNED_NUMBER(d, negative, v) \
-          do                                                                  \
-            {                                                                 \
-              digits = d;                                                     \
-              negative_number = negative;                                     \
-              u_number_value = v;                                             \
-              goto do_signed_number;                                          \
-            }                                                                 \
-          while (0)
-
-          /* The mask is not what you might think.
-             When the ordinal i'th bit is set, insert a colon
-             before the i'th digit of the time zone representation.  */
-#define DO_TZ_OFFSET(d, mask, v) \
-          do                                                                  \
-            {                                                                 \
-              digits = d;                                                     \
-              tz_colon_mask = mask;                                           \
-              u_number_value = v;                                             \
-              goto do_tz_offset;                                              \
-            }                                                                 \
-          while (0)
-#define DO_NUMBER_SPACEPAD(d, v) \
-          do                                                                  \
-            {                                                                 \
-              digits = d;                                                     \
-              number_value = v;                                               \
-              goto do_number_spacepad;                                        \
-            }                                                                 \
-          while (0)
-
-        case L_('%'):
-          if (modifier != 0)
-            goto bad_format;
-          add1 (*f);
-          break;
-
-        case L_('a'):
-          if (modifier != 0)
-            goto bad_format;
-          if (change_case)
-            {
-              to_uppcase = true;
-              to_lowcase = false;
-            }
-#ifdef _NL_CURRENT
-          cpy (aw_len, a_wkday);
-          break;
-#else
-          goto underlying_strftime;
-#endif
-
-        case 'A':
-          if (modifier != 0)
-            goto bad_format;
-          if (change_case)
-            {
-              to_uppcase = true;
-              to_lowcase = false;
-            }
-#ifdef _NL_CURRENT
-          cpy (STRLEN (f_wkday), f_wkday);
-          break;
-#else
-          goto underlying_strftime;
-#endif
-
-        case L_('b'):
-        case L_('h'):
-          if (change_case)
-            {
-              to_uppcase = true;
-              to_lowcase = false;
-            }
-          if (modifier != 0)
-            goto bad_format;
-#ifdef _NL_CURRENT
-          cpy (am_len, a_month);
-          break;
-#else
-          goto underlying_strftime;
-#endif
-
-        case L_('B'):
-          if (modifier != 0)
-            goto bad_format;
-          if (change_case)
-            {
-              to_uppcase = true;
-              to_lowcase = false;
-            }
-#ifdef _NL_CURRENT
-          cpy (STRLEN (f_month), f_month);
-          break;
-#else
-          goto underlying_strftime;
-#endif
-
-        case L_('c'):
-          if (modifier == L_('O'))
-            goto bad_format;
-#ifdef _NL_CURRENT
-          if (! (modifier == 'E'
-                 && (*(subfmt =
-                       (const CHAR_T *) _NL_CURRENT (LC_TIME,
-                                                     NLW(ERA_D_T_FMT)))
-                     != '\0')))
-            subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_T_FMT));
-#else
-          goto underlying_strftime;
-#endif
-
-        subformat:
-          {
-            size_t len = __strftime_internal (NULL, STRFTIME_ARG ((size_t) -1)
-                                              subfmt,
-                                              tp, to_uppcase, tzset_called
-                                              extra_args LOCALE_ARG);
-            add (len, __strftime_internal (p,
-                                           STRFTIME_ARG (maxsize - i)
-                                           subfmt,
-                                           tp, to_uppcase, tzset_called
-                                           extra_args LOCALE_ARG));
-          }
-          break;
-
-#if !(defined _NL_CURRENT && HAVE_STRUCT_ERA_ENTRY)
-        underlying_strftime:
-          {
-            /* The relevant information is available only via the
-               underlying strftime implementation, so use that.  */
-            char ufmt[5];
-            char *u = ufmt;
-            char ubuf[1024]; /* enough for any single format in practice */
-            size_t len;
-            /* Make sure we're calling the actual underlying strftime.
-               In some cases, config.h contains something like
-               "#define strftime rpl_strftime".  */
-# ifdef strftime
-#  undef strftime
-            size_t strftime ();
-# endif
-
-            /* The space helps distinguish strftime failure from empty
-               output.  */
-            *u++ = ' ';
-            *u++ = '%';
-            if (modifier != 0)
-              *u++ = modifier;
-            *u++ = format_char;
-            *u = '\0';
-            len = strftime (ubuf, sizeof ubuf, ufmt, tp);
-            if (len != 0)
-              cpy (len - 1, ubuf + 1);
-          }
-          break;
-#endif
-
-        case L_('C'):
-          if (modifier == L_('E'))
-            {
-#if HAVE_STRUCT_ERA_ENTRY
-              struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG);
-              if (era)
-                {
-# ifdef COMPILE_WIDE
-                  size_t len = __wcslen (era->era_wname);
-                  cpy (len, era->era_wname);
-# else
-                  size_t len = strlen (era->era_name);
-                  cpy (len, era->era_name);
-# endif
-                  break;
-                }
-#else
-              goto underlying_strftime;
-#endif
-            }
-
-          {
-            int century = tp->tm_year / 100 + TM_YEAR_BASE / 100;
-            century -= tp->tm_year % 100 < 0 && 0 < century;
-            DO_SIGNED_NUMBER (2, tp->tm_year < - TM_YEAR_BASE, century);
-          }
-
-        case L_('x'):
-          if (modifier == L_('O'))
-            goto bad_format;
-#ifdef _NL_CURRENT
-          if (! (modifier == L_('E')
-                 && (*(subfmt =
-                       (const CHAR_T *)_NL_CURRENT (LC_TIME, NLW(ERA_D_FMT)))
-                     != L_('\0'))))
-            subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_FMT));
-          goto subformat;
-#else
-          goto underlying_strftime;
-#endif
-        case L_('D'):
-          if (modifier != 0)
-            goto bad_format;
-          subfmt = L_("%m/%d/%y");
-          goto subformat;
-
-        case L_('d'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER (2, tp->tm_mday);
-
-        case L_('e'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER_SPACEPAD (2, tp->tm_mday);
-
-          /* All numeric formats set DIGITS and NUMBER_VALUE (or U_NUMBER_VALUE)
-             and then jump to one of these labels.  */
-
-        do_tz_offset:
-          always_output_a_sign = true;
-          goto do_number_body;
-
-        do_number_spacepad:
-          /* Force '_' flag unless overridden by '0' or '-' flag.  */
-          if (pad != L_('0') && pad != L_('-'))
-            pad = L_('_');
-
-        do_number:
-          /* Format NUMBER_VALUE according to the MODIFIER flag.  */
-          negative_number = number_value < 0;
-          u_number_value = number_value;
-
-        do_signed_number:
-          always_output_a_sign = false;
-          tz_colon_mask = 0;
-
-        do_number_body:
-          /* Format U_NUMBER_VALUE according to the MODIFIER flag.
-             NEGATIVE_NUMBER is nonzero if the original number was
-             negative; in this case it was converted directly to
-             unsigned int (i.e., modulo (UINT_MAX + 1)) without
-             negating it.  */
-          if (modifier == L_('O') && !negative_number)
-            {
-#ifdef _NL_CURRENT
-              /* Get the locale specific alternate representation of
-                 the number.  If none exist NULL is returned.  */
-              const CHAR_T *cp = nl_get_alt_digit (u_number_value
-                                                   HELPER_LOCALE_ARG);
-
-              if (cp != NULL)
-                {
-                  size_t digitlen = STRLEN (cp);
-                  if (digitlen != 0)
-                    {
-                      cpy (digitlen, cp);
-                      break;
-                    }
-                }
-#else
-              goto underlying_strftime;
-#endif
-            }
-
-          bufp = buf + sizeof (buf) / sizeof (buf[0]);
-
-          if (negative_number)
-            u_number_value = - u_number_value;
-
-          do
-            {
-              if (tz_colon_mask & 1)
-                *--bufp = ':';
-              tz_colon_mask >>= 1;
-              *--bufp = u_number_value % 10 + L_('0');
-              u_number_value /= 10;
-            }
-          while (u_number_value != 0 || tz_colon_mask != 0);
-
-        do_number_sign_and_padding:
-          if (digits < width)
-            digits = width;
-
-          sign_char = (negative_number ? L_('-')
-                       : always_output_a_sign ? L_('+')
-                       : 0);
-
-          if (pad == L_('-'))
-            {
-              if (sign_char)
-                add1 (sign_char);
-            }
-          else
-            {
-              int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0]))
-                                      - bufp) - !!sign_char;
-
-              if (padding > 0)
-                {
-                  if (pad == L_('_'))
-                    {
-                      if ((size_t) padding >= maxsize - i)
-                        return 0;
-
-                      if (p)
-                        memset_space (p, padding);
-                      i += padding;
-                      width = width > padding ? width - padding : 0;
-                      if (sign_char)
-                        add1 (sign_char);
-                    }
-                  else
-                    {
-                      if ((size_t) digits >= maxsize - i)
-                        return 0;
-
-                      if (sign_char)
-                        add1 (sign_char);
-
-                      if (p)
-                        memset_zero (p, padding);
-                      i += padding;
-                      width = 0;
-                    }
-                }
-              else
-                {
-                  if (sign_char)
-                    add1 (sign_char);
-                }
-            }
-
-          cpy (buf + sizeof (buf) / sizeof (buf[0]) - bufp, bufp);
-          break;
-
-        case L_('F'):
-          if (modifier != 0)
-            goto bad_format;
-          subfmt = L_("%Y-%m-%d");
-          goto subformat;
-
-        case L_('H'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER (2, tp->tm_hour);
-
-        case L_('I'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER (2, hour12);
-
-        case L_('k'):           /* GNU extension.  */
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER_SPACEPAD (2, tp->tm_hour);
-
-        case L_('l'):           /* GNU extension.  */
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER_SPACEPAD (2, hour12);
-
-        case L_('j'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_SIGNED_NUMBER (3, tp->tm_yday < -1, tp->tm_yday + 1U);
-
-        case L_('M'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER (2, tp->tm_min);
-
-        case L_('m'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_SIGNED_NUMBER (2, tp->tm_mon < -1, tp->tm_mon + 1U);
-
-#ifndef _LIBC
-        case L_('N'):           /* GNU extension.  */
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          number_value = ns;
-          if (width == -1)
-            width = 9;
-          else
-            {
-              /* Take an explicit width less than 9 as a precision.  */
-              int j;
-              for (j = width; j < 9; j++)
-                number_value /= 10;
-            }
-
-          DO_NUMBER (width, number_value);
-#endif
-
-        case L_('n'):
-          add1 (L_('\n'));
-          break;
-
-        case L_('P'):
-          to_lowcase = true;
-#ifndef _NL_CURRENT
-          format_char = L_('p');
-#endif
-          FALLTHROUGH;
-        case L_('p'):
-          if (change_case)
-            {
-              to_uppcase = false;
-              to_lowcase = true;
-            }
-#ifdef _NL_CURRENT
-          cpy (ap_len, ampm);
-          break;
-#else
-          goto underlying_strftime;
-#endif
-
-        case L_('q'):           /* GNU extension.  */
-          DO_SIGNED_NUMBER (1, false, ((tp->tm_mon * 11) >> 5) + 1);
-          break;
-
-        case L_('R'):
-          subfmt = L_("%H:%M");
-          goto subformat;
-
-        case L_('r'):
-#ifdef _NL_CURRENT
-          if (*(subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME,
-                                                       NLW(T_FMT_AMPM)))
-              == L_('\0'))
-            subfmt = L_("%I:%M:%S %p");
-          goto subformat;
-#else
-          goto underlying_strftime;
-#endif
-
-        case L_('S'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER (2, tp->tm_sec);
-
-        case L_('s'):           /* GNU extension.  */
-          {
-            struct tm ltm;
-            time_t t;
-
-            ltm = *tp;
-            t = mktime_z (tz, &ltm);
-
-            /* Generate string value for T using time_t arithmetic;
-               this works even if sizeof (long) < sizeof (time_t).  */
-
-            bufp = buf + sizeof (buf) / sizeof (buf[0]);
-            negative_number = t < 0;
-
-            do
-              {
-                int d = t % 10;
-                t /= 10;
-                *--bufp = (negative_number ? -d : d) + L_('0');
-              }
-            while (t != 0);
-
-            digits = 1;
-            always_output_a_sign = false;
-            goto do_number_sign_and_padding;
-          }
-
-        case L_('X'):
-          if (modifier == L_('O'))
-            goto bad_format;
-#ifdef _NL_CURRENT
-          if (! (modifier == L_('E')
-                 && (*(subfmt =
-                       (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ERA_T_FMT)))
-                     != L_('\0'))))
-            subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(T_FMT));
-          goto subformat;
-#else
-          goto underlying_strftime;
-#endif
-        case L_('T'):
-          subfmt = L_("%H:%M:%S");
-          goto subformat;
-
-        case L_('t'):
-          add1 (L_('\t'));
-          break;
-
-        case L_('u'):
-          DO_NUMBER (1, (tp->tm_wday - 1 + 7) % 7 + 1);
-
-        case L_('U'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER (2, (tp->tm_yday - tp->tm_wday + 7) / 7);
-
-        case L_('V'):
-        case L_('g'):
-        case L_('G'):
-          if (modifier == L_('E'))
-            goto bad_format;
-          {
-            /* YEAR is a leap year if and only if (tp->tm_year + TM_YEAR_BASE)
-               is a leap year, except that YEAR and YEAR - 1 both work
-               correctly even when (tp->tm_year + TM_YEAR_BASE) would
-               overflow.  */
-            int year = (tp->tm_year
-                        + (tp->tm_year < 0
-                           ? TM_YEAR_BASE % 400
-                           : TM_YEAR_BASE % 400 - 400));
-            int year_adjust = 0;
-            int days = iso_week_days (tp->tm_yday, tp->tm_wday);
-
-            if (days < 0)
-              {
-                /* This ISO week belongs to the previous year.  */
-                year_adjust = -1;
-                days = iso_week_days (tp->tm_yday + (365 + __isleap (year - 1)),
-                                      tp->tm_wday);
-              }
-            else
-              {
-                int d = iso_week_days (tp->tm_yday - (365 + __isleap (year)),
-                                       tp->tm_wday);
-                if (0 <= d)
-                  {
-                    /* This ISO week belongs to the next year.  */
-                    year_adjust = 1;
-                    days = d;
-                  }
-              }
-
-            switch (*f)
-              {
-              case L_('g'):
-                {
-                  int yy = (tp->tm_year % 100 + year_adjust) % 100;
-                  DO_NUMBER (2, (0 <= yy
-                                 ? yy
-                                 : tp->tm_year < -TM_YEAR_BASE - year_adjust
-                                 ? -yy
-                                 : yy + 100));
-                }
-
-              case L_('G'):
-                DO_SIGNED_NUMBER (4, tp->tm_year < -TM_YEAR_BASE - year_adjust,
-                                  (tp->tm_year + (unsigned int) TM_YEAR_BASE
-                                   + year_adjust));
-
-              default:
-                DO_NUMBER (2, days / 7 + 1);
-              }
-          }
-
-        case L_('W'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER (2, (tp->tm_yday - (tp->tm_wday - 1 + 7) % 7 + 7) / 7);
-
-        case L_('w'):
-          if (modifier == L_('E'))
-            goto bad_format;
-
-          DO_NUMBER (1, tp->tm_wday);
-
-        case L_('Y'):
-          if (modifier == 'E')
-            {
-#if HAVE_STRUCT_ERA_ENTRY
-              struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG);
-              if (era)
-                {
-# ifdef COMPILE_WIDE
-                  subfmt = era->era_wformat;
-# else
-                  subfmt = era->era_format;
-# endif
-                  goto subformat;
-                }
-#else
-              goto underlying_strftime;
-#endif
-            }
-          if (modifier == L_('O'))
-            goto bad_format;
-
-          DO_SIGNED_NUMBER (4, tp->tm_year < -TM_YEAR_BASE,
-                            tp->tm_year + (unsigned int) TM_YEAR_BASE);
-
-        case L_('y'):
-          if (modifier == L_('E'))
-            {
-#if HAVE_STRUCT_ERA_ENTRY
-              struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG);
-              if (era)
-                {
-                  int delta = tp->tm_year - era->start_date[0];
-                  DO_NUMBER (1, (era->offset
-                                 + delta * era->absolute_direction));
-                }
-#else
-              goto underlying_strftime;
-#endif
-            }
-
-          {
-            int yy = tp->tm_year % 100;
-            if (yy < 0)
-              yy = tp->tm_year < - TM_YEAR_BASE ? -yy : yy + 100;
-            DO_NUMBER (2, yy);
-          }
-
-        case L_('Z'):
-          if (change_case)
-            {
-              to_uppcase = false;
-              to_lowcase = true;
-            }
-
-#ifdef COMPILE_WIDE
-          {
-            /* The zone string is always given in multibyte form.  We have
-               to transform it first.  */
-            wchar_t *wczone;
-            size_t len;
-            widen (zone, wczone, len);
-            cpy (len, wczone);
-          }
-#else
-          cpy (strlen (zone), zone);
-#endif
-          break;
-
-        case L_(':'):
-          /* :, ::, and ::: are valid only just before 'z'.
-             :::: etc. are rejected later.  */
-          for (colons = 1; f[colons] == L_(':'); colons++)
-            continue;
-          if (f[colons] != L_('z'))
-            goto bad_format;
-          f += colons;
-          goto do_z_conversion;
-
-        case L_('z'):
-          colons = 0;
-
-        do_z_conversion:
-          if (tp->tm_isdst < 0)
-            break;
-
-          {
-            int diff;
-            int hour_diff;
-            int min_diff;
-            int sec_diff;
-#if HAVE_TM_GMTOFF
-            diff = tp->tm_gmtoff;
-#else
-            if (!tz)
-              diff = 0;
-            else
-              {
-                struct tm gtm;
-                struct tm ltm;
-                time_t lt;
-
-                /* POSIX.1 requires that local time zone information be used as
-                   though strftime called tzset.  */
-# if HAVE_TZSET
-                if (!*tzset_called)
-                  {
-                    tzset ();
-                    *tzset_called = true;
-                  }
-# endif
-
-                ltm = *tp;
-                lt = mktime_z (tz, &ltm);
-
-                if (lt == (time_t) -1)
-                  {
-                    /* mktime returns -1 for errors, but -1 is also a
-                       valid time_t value.  Check whether an error really
-                       occurred.  */
-                    struct tm tm;
-
-                    if (! localtime_rz (tz, &lt, &tm)
-                        || ((ltm.tm_sec ^ tm.tm_sec)
-                            | (ltm.tm_min ^ tm.tm_min)
-                            | (ltm.tm_hour ^ tm.tm_hour)
-                            | (ltm.tm_mday ^ tm.tm_mday)
-                            | (ltm.tm_mon ^ tm.tm_mon)
-                            | (ltm.tm_year ^ tm.tm_year)))
-                      break;
-                  }
-
-                if (! localtime_rz (0, &lt, &gtm))
-                  break;
-
-                diff = tm_diff (&ltm, &gtm);
-              }
-#endif
-
-            negative_number = diff < 0 || (diff == 0 && *zone == '-');
-            hour_diff = diff / 60 / 60;
-            min_diff = diff / 60 % 60;
-            sec_diff = diff % 60;
-
-            switch (colons)
-              {
-              case 0: /* +hhmm */
-                DO_TZ_OFFSET (5, 0, hour_diff * 100 + min_diff);
-
-              case 1: tz_hh_mm: /* +hh:mm */
-                DO_TZ_OFFSET (6, 04, hour_diff * 100 + min_diff);
-
-              case 2: tz_hh_mm_ss: /* +hh:mm:ss */
-                DO_TZ_OFFSET (9, 024,
-                              hour_diff * 10000 + min_diff * 100 + sec_diff);
-
-              case 3: /* +hh if possible, else +hh:mm, else +hh:mm:ss */
-                if (sec_diff != 0)
-                  goto tz_hh_mm_ss;
-                if (min_diff != 0)
-                  goto tz_hh_mm;
-                DO_TZ_OFFSET (3, 0, hour_diff);
-
-              default:
-                goto bad_format;
-              }
-          }
-
-        case L_('\0'):          /* GNU extension: % at end of format.  */
-            --f;
-            FALLTHROUGH;
-        default:
-          /* Unknown format; output the format, including the '%',
-             since this is most likely the right thing to do if a
-             multibyte string has been misparsed.  */
-        bad_format:
-          {
-            int flen;
-            for (flen = 1; f[1 - flen] != L_('%'); flen++)
-              continue;
-            cpy (flen, &f[1 - flen]);
-          }
-          break;
-        }
-    }
-
-#if ! FPRINTFTIME
-  if (p && maxsize != 0)
-    *p = L_('\0');
-#endif
-
-  return i;
-}