Update.

2004-03-14  Ulrich Drepper  <drepper@redhat.com>

	Make the non-_l functions wrappers around the _l functions.
	* include/monetary.h: Declare __vstrmon_l.
	* include/string.h: Add libc_hidden_proto for __strcoll_l and
	__strxfrm_l.
	* include/time.h: Define ptime_locale_status.  Declare
	__strptime_internal.
	* include/wchar.h: Add libc_hidden_proto for __wcscoll_l and
	__wcsxfrm_l.
	* stdlib/strfmon.c: Move the code to strfmon_l.c.  Add little
	wrapper around __vstrfmon_l.
	* stdlib/strfmon_l.c: Add real implementation.  Split into new
	function __vstrfmon_l to allow calling it from strfmon.
	* stdlib/strtod.c: Move real code to strtod_l.c and add wrapper.
	* stdlib/strtod_l.c: Add real implementation.
	* stdlib/strtof.c: Adjust to changed strtod.c.
	* stdlib/strtof_l.c: Include strtod_l.c now.
	* stdlib/strtold.c: New file.
	* stdlib/strtold_l.c: Removed.
	* string/strcoll.c: Move real code to strcoll_l.c: Add wrapper.
	* string/strcoll_l.c: Add real implementation.
	* string/strxfrm.c: Move real code to strxfrm_l.c: Add wrapper.
	* string/strxfrm_l.c: Add real implementation.
	* sysdeps/generic/strtol.c: Move real implementation to strtol_l.c.
	Add wrappers.
	* sysdeps/generic/strtol_l.c: Add real implementation.
	* sysdeps/generic/strtold.c: Removed.
	* sysdeps/generic/strtold_l.c: New file.
	* sysdeps/generic/strtoll_l.c: Include strtol_l.c now.  Adjust
	#defines.
	* sysdeps/generic/strtoul_l.c: Likewise.
	* sysdeps/generic/strtoull_l.c: Likewise.
	* sysdeps/generic/wcstol_l.c: Likewise.
	* sysdeps/generic/wcstoll_l.c: Likewise.
	* sysdeps/generic/wcstoul_l.c: Likewise.
	* sysdeps/generic/wcstoull_l.c: Likewise.
	* sysdeps/ieee754/ldbl-128/strtold.c: Removed.
	* sysdeps/ieee754/ldbl-128/strtold_l.c: New file.
	* sysdeps/ieee754/ldbl-96/strtold.c: Removed.
	* sysdeps/ieee754/ldbl-96/strtold_l.c: New file.
	* sysdeps/m68k/strtold.c: Removed.
	* sysdeps/m68k/strtold_l.c: New file.
	* time/strftime.c: Move real code to strftime_l.c.  Add wrapper.
	* time/strftime_l.c: Add real implementation.
	* time/strptime.c: Move real code to strptime_l.c.  Add wrapper.
	* time/strptime_l.c: Add real implementation.
	* time/wcsftime.c: Simplify since only wrappers are defined in
	strftime.c.
	* time/wcsftime_l.c: Include strftime_l.c.
	* wcsmbs/wcscoll.c: Simplify since the file is not used by wcscoll_l.c
	anymore.
	* wcsmbs/wcscoll_l.c: Include strcoll_l.c.
	* wcsmbs/wcsxfrm.c: Simplify since the file is not used by wcsxfrm_l.c
	anymore.
	* wcsmbs/wcsxfrm_l.c: Include strxfrm_l.c.
	* wcsmbs/wcstod.c: Prepare to include new strtod.c.
	* wcsmbs/wcstod_l.c: Include strtod_l.c.
	* wcsmbs/wcstof.c: Prepare to include new strtof.c.
	* wcsmbs/wcstof_l.c: Include strtof_l.c.
	* wcsmbs/wcstold.c: Prepare to include new strtold.c.
	* wcsmbs/wcstold_l.c: Include strtold_l.c.

	* locale/uselocale.c: Use _NL_CURRENT_LOCALE instead of __libc_tsd_get.

	* sysdeps/generic/strcasecmp.c: Optimize a bit.  It's better to get
	a reference to the current locale and then use the _l functions.
	* sysdeps/generic/strncase.c: Likewise.

1 files changed, 1423 insertions, 3 deletions

diff --git a/time/strftime_l.c b/time/strftime_l.c
index c6ecada4ce..6cae85d32f 100644
--- a/time/strftime_l.c
+++ b/time/strftime_l.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2004 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
@@ -16,7 +16,1427 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#define USE_IN_EXTENDED_LOCALE_MODEL 1
-#include <strftime.c>
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
 
+#ifdef _LIBC
+# define USE_IN_EXTENDED_LOCALE_MODEL 1
+# define HAVE_LIMITS_H 1
+# define HAVE_MBLEN 1
+# define HAVE_MBRLEN 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
+# define MULTIBYTE_IS_FORMAT_SAFE 1
+# define STDC_HEADERS 1
+# include "../locale/localeinfo.h"
+#endif
+
+#if defined emacs && !defined HAVE_BCOPY
+# define HAVE_MEMCPY 1
+#endif
+
+#include <ctype.h>
+#include <sys/types.h>		/* Some systems define `time_t' here.  */
+
+#ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# ifdef HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+#if HAVE_TZNAME
+extern char *tzname[];
+#endif
+
+/* Do multibyte processing if multibytes 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 GNU C Library uses UTF8 multibyte
+   encoding, which is safe for formats, but strftime.c can be used
+   with other C libraries that use unsafe encodings.  */
+#define DO_MULTIBYTE (HAVE_MBLEN && ! MULTIBYTE_IS_FORMAT_SAFE)
+
+#if DO_MULTIBYTE
+# if HAVE_MBRLEN
+#  include <wchar.h>
+# else
+   /* Simulate mbrlen with mblen as best we can.  */
+#  define mbstate_t int
+#  define mbrlen(s, n, ps) mblen (s, n)
+#  define mbsinit(ps) (*(ps) == 0)
+# endif
+  static const mbstate_t mbstate_zero;
+#endif
+
+#if HAVE_LIMITS_H
+# include <limits.h>
+#endif
+
+#if STDC_HEADERS
+# include <stddef.h>
+# include <stdlib.h>
+# include <string.h>
+#else
+# ifndef HAVE_MEMCPY
+#  define memcpy(d, s, n) bcopy ((s), (d), (n))
+# 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
+
+# if !defined STDC_HEADERS && !defined HAVE_MEMCPY
+#  define MEMCPY(d, s, n) bcopy ((s), (d), (n))
+# else
+#  define MEMCPY(d, s, n) memcpy ((d), (s), (n))
+# endif
+# define STRLEN(s) strlen (s)
+
+# ifdef _LIBC
+#  define MEMPCPY(d, s, n) __mempcpy (d, s, n)
+# else
+#  ifndef HAVE_MEMPCPY
+#   define MEMPCPY(d, s, n) ((void *) ((char *) memcpy (d, s, n) + (n)))
+#  endif
+# endif
+#endif
+
+#ifndef __P
+# if defined __GNUC__ || (defined __STDC__ && __STDC__)
+#  define __P(args) args
+# else
+#  define __P(args) ()
+# endif  /* GCC.  */
+#endif  /* Not __P.  */
+
+#ifndef PTR
+# ifdef __STDC__
+#  define PTR void *
+# else
+#  define PTR char *
+# endif
+#endif
+
+#ifndef CHAR_BIT
+# define CHAR_BIT 8
+#endif
+
+#ifndef NULL
+# define NULL 0
+#endif
+
+#define TYPE_SIGNED(t) ((t) -1 < 0)
+
+/* Bound on length of the string representing an integer value of type t.
+   Subtract one for the sign bit if t is signed;
+   302 / 1000 is log10 (2) rounded up;
+   add one for integer division truncation;
+   add one more for a minus sign if t is signed.  */
+#define INT_STRLEN_BOUND(t) \
+ ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 + 1 + TYPE_SIGNED (t))
+
+#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 tzname __tzname
+# define tzset __tzset
+#endif
+
+#if !HAVE_TM_GMTOFF
+/* Portable standalone applications should supply a "time_r.h" that
+   declares a POSIX-compliant localtime_r, for the benefit of older
+   implementations that lack localtime_r or have a nonstandard one.
+   Similarly for gmtime_r.  See the gnulib time_r module for one way
+   to implement this.  */
+# include "time_r.h"
+# undef __gmtime_r
+# undef __localtime_r
+# define __gmtime_r gmtime_r
+# define __localtime_r localtime_r
+#endif
+
+
+#if !defined memset && !defined HAVE_MEMSET && !defined _LIBC
+/* Some systems lack the `memset' function and we don't want to
+   introduce additional dependencies.  */
+/* The SGI compiler reportedly barfs on the trailing null
+   if we use a string constant as the initializer.  28 June 1997, rms.  */
+static const CHAR_T spaces[16] = /* "                " */
+{
+  L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),
+  L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' ')
+};
+static const CHAR_T zeroes[16] = /* "0000000000000000" */
+{
+  L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),
+  L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0')
+};
+
+# define memset_space(P, Len) \
+  do {									      \
+    int _len = (Len);							      \
+									      \
+    do									      \
+      {									      \
+	int _this = _len > 16 ? 16 : _len;				      \
+	(P) = MEMPCPY ((P), spaces, _this * sizeof (CHAR_T));		      \
+	_len -= _this;							      \
+      }									      \
+    while (_len > 0);							      \
+  } while (0)
+
+# define memset_zero(P, Len) \
+  do {									      \
+    int _len = (Len);							      \
+									      \
+    do									      \
+      {									      \
+	int _this = _len > 16 ? 16 : _len;				      \
+	(P) = MEMPCPY ((P), zeroes, _this * sizeof (CHAR_T));		      \
+	_len -= _this;							      \
+      }									      \
+    while (_len > 0);							      \
+  } while (0)
+#else
+# ifdef 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
+#endif
+
+#define add(n, f)							      \
+  do									      \
+    {									      \
+      int _n = (n);							      \
+      int _delta = width - _n;						      \
+      int _incr = _n + (_delta > 0 ? _delta : 0);			      \
+      if ((size_t) _incr >= maxsize - i)				      \
+	return 0;							      \
+      if (p)								      \
+	{								      \
+	  if (_delta > 0)						      \
+	    {								      \
+	      if (pad == L_('0'))					      \
+		memset_zero (p, _delta);				      \
+	      else							      \
+		memset_space (p, _delta);				      \
+	    }								      \
+	  f;								      \
+	  p += _n;							      \
+	}								      \
+      i += _incr;							      \
+    } while (0)
+
+#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 ((PTR) p, (const PTR) (s), _n))
+
+#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 = 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 , loc
+# define LOCALE_ARG , loc
+# define LOCALE_PARAM_DECL  __locale_t loc;
+# define LOCALE_PARAM_PROTO , __locale_t loc
+# define HELPER_LOCALE_ARG  , current
+#else
+# define LOCALE_PARAM
+# define LOCALE_PARAM_PROTO
+# define LOCALE_ARG
+# define LOCALE_PARAM_DECL
+# 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 _LIBC
+#  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
+# else
+#  define TOUPPER(Ch, L) (islower (Ch) ? toupper (Ch) : (Ch))
+#  define TOLOWER(Ch, L) (isupper (Ch) ? tolower (Ch) : (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)
+
+static CHAR_T *memcpy_lowcase __P ((CHAR_T *dest, const CHAR_T *src,
+				    size_t len LOCALE_PARAM_PROTO));
+
+static CHAR_T *
+memcpy_lowcase (dest, src, len LOCALE_PARAM)
+     CHAR_T *dest;
+     const CHAR_T *src;
+     size_t len;
+     LOCALE_PARAM_DECL
+{
+  while (len-- > 0)
+    dest[len] = TOLOWER ((UCHAR_T) src[len], loc);
+  return dest;
+}
+
+static CHAR_T *memcpy_uppcase __P ((CHAR_T *dest, const CHAR_T *src,
+				    size_t len LOCALE_PARAM_PROTO));
+
+static CHAR_T *
+memcpy_uppcase (dest, src, len LOCALE_PARAM)
+     CHAR_T *dest;
+     const CHAR_T *src;
+     size_t len;
+     LOCALE_PARAM_DECL
+{
+  while (len-- > 0)
+    dest[len] = TOUPPER ((UCHAR_T) src[len], loc);
+  return dest;
+}
+
+
+#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 __P ((const struct tm *, const struct tm *));
+static int
+tm_diff (a, b)
+     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 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3);
+  int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3);
+  int a100 = a4 / 25 - (a4 % 25 < 0);
+  int b100 = b4 / 25 - (b4 % 25 < 0);
+  int a400 = a100 >> 2;
+  int b400 = 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 __P ((int, int));
+#ifdef __GNUC__
+__inline__
+#endif
+static int
+iso_week_days (yday, wday)
+     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);
+}
+
+
+#if !(defined _NL_CURRENT || HAVE_STRFTIME)
+static CHAR_T const weekday_name[][10] =
+  {
+    L_("Sunday"), L_("Monday"), L_("Tuesday"), L_("Wednesday"),
+    L_("Thursday"), L_("Friday"), L_("Saturday")
+  };
+static CHAR_T const month_name[][10] =
+  {
+    L_("January"), L_("February"), L_("March"), L_("April"), L_("May"),
+    L_("June"), L_("July"), L_("August"), L_("September"), L_("October"),
+    L_("November"), L_("December")
+  };
+#endif
+
+
+#ifdef emacs
+# define my_strftime emacs_strftimeu
+# define ut_argument , ut
+# define ut_argument_spec int ut;
+# define ut_argument_spec_iso , int ut
+#else
+# ifdef 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 ut_argument
+# define ut_argument_spec
+# define ut_argument_spec_iso
+/* We don't have this information in general.  */
+# define ut 0
+#endif
+
+#if !defined _LIBC && HAVE_TZNAME && HAVE_TZSET
+  /* Solaris 2.5 tzset sometimes modifies the storage returned by localtime.
+     Work around this bug by copying *tp before it might be munged.  */
+  size_t _strftime_copytm __P ((char *, size_t, const char *,
+			        const struct tm * ut_argument_spec_iso));
+  size_t
+  my_strftime (s, maxsize, format, tp ut_argument)
+      CHAR_T *s;
+      size_t maxsize;
+      const CHAR_T *format;
+      const struct tm *tp;
+      ut_argument_spec
+  {
+    struct tm tmcopy;
+    tmcopy = *tp;
+    return _strftime_copytm (s, maxsize, format, &tmcopy ut_argument);
+  }
+# undef my_strftime
+# define my_strftime _strftime_copytm
+#endif
+
+
+/* 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) UINT_MAX for MAXSIZE.  */
+size_t
+my_strftime (s, maxsize, format, tp ut_argument LOCALE_PARAM)
+      CHAR_T *s;
+      size_t maxsize;
+      const CHAR_T *format;
+      const struct tm *tp;
+      ut_argument_spec
+      LOCALE_PARAM_DECL
+{
+#if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL
+  struct locale_data *const current = loc->__locales[LC_TIME];
+#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 *) _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday))
+# define f_wkday \
+  ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday))
+# define a_month \
+  ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon))
+# define f_month \
+  ((const CHAR_T *) _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)
+#else
+# if !HAVE_STRFTIME
+#  define f_wkday (weekday_name[tp->tm_wday])
+#  define f_month (month_name[tp->tm_mon])
+#  define a_wkday f_wkday
+#  define a_month f_month
+#  define ampm (L_("AMPM") + 2 * (tp->tm_hour > 11))
+
+  size_t aw_len = 3;
+  size_t am_len = 3;
+  size_t ap_len = 2;
+# endif
+#endif
+  const char *zone;
+  size_t i = 0;
+  CHAR_T *p = s;
+  const CHAR_T *f;
+#if DO_MULTIBYTE && !defined COMPILE_WIDE
+  const char *format_end = NULL;
+#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 (ut)
+    {
+      if (! (zone && *zone))
+	zone = "GMT";
+    }
+  else
+    {
+      /* POSIX.1 requires that local time zone information is used as
+	 though strftime called tzset.  */
+# if HAVE_TZSET
+      tzset ();
+# endif
+    }
+#endif
+
+  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;		/* Max digits for numeric format.  */
+      int number_value; 	/* Numeric value to be printed.  */
+      int negative_number;	/* 1 if the number is negative.  */
+      const CHAR_T *subfmt;
+      CHAR_T *bufp;
+      CHAR_T buf[1 + (sizeof (int) < sizeof (time_t)
+		      ? INT_STRLEN_BOUND (time_t)
+		      : INT_STRLEN_BOUND (int))];
+      int width = -1;
+      int to_lowcase = 0;
+      int to_uppcase = 0;
+      int change_case = 0;
+      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.  */
+	  add (1, *p = *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_('%'))
+	{
+	  add (1, *p = *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 = 1;
+	      continue;
+	    case L_('#'):
+	      change_case = 1;
+	      continue;
+
+	    default:
+	      break;
+	    }
+	  break;
+	}
+
+      /* As a GNU extension we allow to specify the field width.  */
+      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) \
+	  digits = d > width ? d : width;				      \
+	  number_value = v; goto do_number
+#define DO_NUMBER_SPACEPAD(d, v) \
+	  digits = d > width ? d : width;				      \
+	  number_value = v; goto do_number_spacepad
+
+	case L_('%'):
+	  if (modifier != 0)
+	    goto bad_format;
+	  add (1, *p = *f);
+	  break;
+
+	case L_('a'):
+	  if (modifier != 0)
+	    goto bad_format;
+	  if (change_case)
+	    {
+	      to_uppcase = 1;
+	      to_lowcase = 0;
+	    }
+#if defined _NL_CURRENT || !HAVE_STRFTIME
+	  cpy (aw_len, a_wkday);
+	  break;
+#else
+	  goto underlying_strftime;
+#endif
+
+	case 'A':
+	  if (modifier != 0)
+	    goto bad_format;
+	  if (change_case)
+	    {
+	      to_uppcase = 1;
+	      to_lowcase = 0;
+	    }
+#if defined _NL_CURRENT || !HAVE_STRFTIME
+	  cpy (STRLEN (f_wkday), f_wkday);
+	  break;
+#else
+	  goto underlying_strftime;
+#endif
+
+	case L_('b'):
+	case L_('h'):
+	  if (change_case)
+	    {
+	      to_uppcase = 1;
+	      to_lowcase = 0;
+	    }
+	  if (modifier != 0)
+	    goto bad_format;
+#if defined _NL_CURRENT || !HAVE_STRFTIME
+	  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 = 1;
+	      to_lowcase = 0;
+	    }
+#if defined _NL_CURRENT || !HAVE_STRFTIME
+	  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
+# if HAVE_STRFTIME
+	  goto underlying_strftime;
+# else
+	  subfmt = L_("%a %b %e %H:%M:%S %Y");
+# endif
+#endif
+
+	subformat:
+	  {
+	    CHAR_T *old_start = p;
+	    size_t len = my_strftime (NULL, (size_t) -1, subfmt,
+				      tp ut_argument LOCALE_ARG);
+	    add (len, my_strftime (p, maxsize - i, subfmt,
+				   tp ut_argument LOCALE_ARG));
+
+	    if (to_uppcase)
+	      while (old_start < p)
+		{
+		  *old_start = TOUPPER ((UCHAR_T) *old_start, loc);
+		  ++old_start;
+		}
+	  }
+	  break;
+
+#if HAVE_STRFTIME && ! (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[4];
+	    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
+
+	    *u++ = '%';
+	    if (modifier != 0)
+	      *u++ = modifier;
+	    *u++ = format_char;
+	    *u = '\0';
+	    len = strftime (ubuf, sizeof ubuf, ufmt, tp);
+	    if (len == 0 && ubuf[0] != '\0')
+	      return 0;
+	    cpy (len, ubuf);
+	  }
+	  break;
+#endif
+
+	case L_('C'):
+	  if (modifier == L_('O'))
+	    goto bad_format;
+	  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
+# if HAVE_STRFTIME
+	      goto underlying_strftime;
+# endif
+#endif
+	    }
+
+	  {
+	    int year = tp->tm_year + TM_YEAR_BASE;
+	    DO_NUMBER (1, year / 100 - (year % 100 < 0));
+	  }
+
+	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
+# if HAVE_STRFTIME
+	  goto underlying_strftime;
+# else
+	  /* Fall through.  */
+# endif
+#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 and then
+	     jump to one of these two labels.  */
+
+	do_number_spacepad:
+	  /* Force `_' flag unless overwritten by `0' or '-' flag.  */
+	  if (pad != L_('0') && pad != L_('-'))
+	    pad = L_('_');
+
+	do_number:
+	  /* Format the number according to the MODIFIER flag.  */
+
+	  if (modifier == L_('O') && 0 <= number_value)
+	    {
+#ifdef _NL_CURRENT
+	      /* Get the locale specific alternate representation of
+		 the number NUMBER_VALUE.  If none exist NULL is returned.  */
+	      const CHAR_T *cp = nl_get_alt_digit (number_value
+						   HELPER_LOCALE_ARG);
+
+	      if (cp != NULL)
+		{
+		  size_t digitlen = STRLEN (cp);
+		  if (digitlen != 0)
+		    {
+		      cpy (digitlen, cp);
+		      break;
+		    }
+		}
+#else
+# if HAVE_STRFTIME
+	      goto underlying_strftime;
+# endif
+#endif
+	    }
+	  {
+	    unsigned int u = number_value;
+
+	    bufp = buf + sizeof (buf) / sizeof (buf[0]);
+	    negative_number = number_value < 0;
+
+	    if (negative_number)
+	      u = -u;
+
+	    do
+	      *--bufp = u % 10 + L_('0');
+	    while ((u /= 10) != 0);
+  	  }
+
+	do_number_sign_and_padding:
+	  if (negative_number)
+	    *--bufp = L_('-');
+
+	  if (pad != L_('-'))
+	    {
+	      int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0]))
+				      - bufp);
+
+	      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;
+		    }
+		  else
+		    {
+		      if ((size_t) digits >= maxsize - i)
+			return 0;
+
+		      if (negative_number)
+			{
+			  ++bufp;
+
+			  if (p)
+			    *p++ = L_('-');
+			  ++i;
+			}
+
+		      if (p)
+			memset_zero (p, padding);
+		      i += padding;
+		      width = 0;
+		    }
+		}
+	    }
+
+	  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_NUMBER (3, 1 + tp->tm_yday);
+
+	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_NUMBER (2, tp->tm_mon + 1);
+
+	case L_('n'):
+	  add (1, *p = L_('\n'));
+	  break;
+
+	case L_('P'):
+	  to_lowcase = 1;
+#if !defined _NL_CURRENT && HAVE_STRFTIME
+	  format_char = L_('p');
+#endif
+	  /* FALLTHROUGH */
+
+	case L_('p'):
+	  if (change_case)
+	    {
+	      to_uppcase = 0;
+	      to_lowcase = 1;
+	    }
+#if defined _NL_CURRENT || !HAVE_STRFTIME
+	  cpy (ap_len, ampm);
+	  break;
+#else
+	  goto underlying_strftime;
+#endif
+
+	case L_('R'):
+	  subfmt = L_("%H:%M");
+	  goto subformat;
+
+	case L_('r'):
+#if !defined _NL_CURRENT && HAVE_STRFTIME
+	  goto underlying_strftime;
+#else
+# ifdef _NL_CURRENT
+	  if (*(subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME,
+						       NLW(T_FMT_AMPM)))
+	      == L_('\0'))
+# endif
+	    subfmt = L_("%I:%M:%S %p");
+	  goto subformat;
+#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 (&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;
+
+		if (negative_number)
+		  {
+		    d = -d;
+
+		    /* Adjust if division truncates to minus infinity.  */
+		    if (0 < -1 % 10 && d < 0)
+		      {
+			t++;
+			d += 10;
+		      }
+		  }
+
+		*--bufp = d + L_('0');
+	      }
+	    while (t != 0);
+
+	    digits = 1;
+	    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
+# if HAVE_STRFTIME
+	  goto underlying_strftime;
+# else
+	  /* Fall through.  */
+# endif
+#endif
+	case L_('T'):
+	  subfmt = L_("%H:%M:%S");
+	  goto subformat;
+
+	case L_('t'):
+	  add (1, *p = 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;
+	  {
+	    int year = tp->tm_year + TM_YEAR_BASE;
+	    int days = iso_week_days (tp->tm_yday, tp->tm_wday);
+
+	    if (days < 0)
+	      {
+		/* This ISO week belongs to the previous year.  */
+		year--;
+		days = iso_week_days (tp->tm_yday + (365 + __isleap (year)),
+				      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++;
+		    days = d;
+		  }
+	      }
+
+	    switch (*f)
+	      {
+	      case L_('g'):
+		DO_NUMBER (2, (year % 100 + 100) % 100);
+
+	      case L_('G'):
+		DO_NUMBER (1, year);
+
+	      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
+# if HAVE_STRFTIME
+	      goto underlying_strftime;
+# endif
+#endif
+	    }
+	  if (modifier == L_('O'))
+	    goto bad_format;
+	  else
+	    DO_NUMBER (1, tp->tm_year + 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
+# if HAVE_STRFTIME
+	      goto underlying_strftime;
+# endif
+#endif
+	    }
+	  DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100);
+
+	case L_('Z'):
+	  if (change_case)
+	    {
+	      to_uppcase = 0;
+	      to_lowcase = 1;
+	    }
+
+#if HAVE_TZNAME
+	  /* The tzset() call might have changed the value.  */
+	  if (!(zone && *zone) && tp->tm_isdst >= 0)
+	    zone = tzname[tp->tm_isdst];
+#endif
+	  if (! zone)
+	    zone = "";
+
+#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_('z'):
+	  if (tp->tm_isdst < 0)
+	    break;
+
+	  {
+	    int diff;
+#if HAVE_TM_GMTOFF
+	    diff = tp->tm_gmtoff;
+#else
+	    if (ut)
+	      diff = 0;
+	    else
+	      {
+		struct tm gtm;
+		struct tm ltm;
+		time_t lt;
+
+		ltm = *tp;
+		lt = mktime (&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_r (&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 (! __gmtime_r (&lt, &gtm))
+		  break;
+
+		diff = tm_diff (&ltm, &gtm);
+	      }
+#endif
+
+	    if (diff < 0)
+	      {
+		add (1, *p = L_('-'));
+		diff = -diff;
+	      }
+	    else
+	      add (1, *p = L_('+'));
+
+	    diff /= 60;
+	    DO_NUMBER (4, (diff / 60) * 100 + diff % 60);
+	  }
+
+	case L_('\0'):		/* GNU extension: % at end of format.  */
+	    --f;
+	    /* Fall through.  */
+	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 (p && maxsize != 0)
+    *p = L_('\0');
+  return i;
+}
+#ifdef _LIBC
+libc_hidden_def (my_strftime)
+#endif
+
+
+#ifdef emacs
+/* For Emacs we have a separate interface which corresponds to the normal
+   strftime function and does not have the extra information whether the
+   TP arguments comes from a `gmtime' call or not.  */
+size_t
+emacs_strftime (s, maxsize, format, tp)
+      char *s;
+      size_t maxsize;
+      const char *format;
+      const struct tm *tp;
+{
+  return my_strftime (s, maxsize, format, tp, 0);
+}
+#endif
+
+#if defined _LIBC && !defined COMPILE_WIDE
 weak_alias (__strftime_l, strftime_l)
+#endif