* time/mktime.c: (my_mktime_localtime_r):

	Remove.  All uses changed to __localtime_r.
	(__localtime_r) [!defined _LIBC]: New macro.  Include "time_r.h" to
	get its implementation.
	Fix compile-command to allow for TIME_R_POSIX.

	* time/strftime.c (my_strftime_gmtime_r, my_strftime_localtime_r):
	Remove.  All uses changed to __localtime_r and __gmtime_r.
	(__gmtime_r, __localtime_r) [!HAVE_TM_GMTOFF]: New macros.
	Include "time_r.h" to get their implementations.

	* time/timegm.c: Allow use in GNU applications outside glibc.
	[defined HAVE_CONFIG_H]: Include <config.h>.
	[!defined _LIBC]: Include "timegm.h", <time_r.h>.
	Define __gmtime_r, and declare __mktime_internal.
	(timegm): Define via a prototype, since we can safely assume C89 now.

4 files changed, 67 insertions, 62 deletions

diff --git a/ChangeLog b/ChangeLog
index e1191f9f89..1e33f9d370 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,23 @@
 
 2003-12-30  Paul Eggert  <eggert@twinsun.com>
 
+	* time/mktime.c: (my_mktime_localtime_r):
+	Remove.  All uses changed to __localtime_r.
+	(__localtime_r) [!defined _LIBC]: New macro.  Include "time_r.h" to
+	get its implementation.
+	Fix compile-command to allow for TIME_R_POSIX.
+
+	* time/strftime.c (my_strftime_gmtime_r, my_strftime_localtime_r):
+	Remove.  All uses changed to __localtime_r and __gmtime_r.
+	(__gmtime_r, __localtime_r) [!HAVE_TM_GMTOFF]: New macros.
+	Include "time_r.h" to get their implementations.
+
+	* time/timegm.c: Allow use in GNU applications outside glibc.
+	[defined HAVE_CONFIG_H]: Include <config.h>.
+	[!defined _LIBC]: Include "timegm.h", <time_r.h>.
+	Define __gmtime_r, and declare __mktime_internal.
+	(timegm): Define via a prototype, since we can safely assume C89 now.
+
 	* time/mktime.c (check_result): Use less-confusing report format.
 	"long" -> "long int", as per usual GNU style.
 	(main): Likewise.
diff --git a/time/mktime.c b/time/mktime.c
index e801928570..136984bad1 100644
--- a/time/mktime.c
+++ b/time/mktime.c
@@ -84,22 +84,15 @@ const unsigned short int __mon_yday[2][13] =
   };
 
 
-#ifdef _LIBC
-# define my_mktime_localtime_r __localtime_r
-#else
-/* If we're a mktime substitute in a GNU program, then prefer
-   localtime to localtime_r, since many localtime_r implementations
-   are buggy.  */
-static struct tm *
-my_mktime_localtime_r (const time_t *t, struct tm *tp)
-{
-  struct tm *l = localtime (t);
-  if (! l)
-    return 0;
-  *tp = *l;
-  return tp;
-}
-#endif /* ! _LIBC */
+#ifndef _LIBC
+/* 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.
+   See the gnulib time_r module for one way to implement this.  */
+# include "time_r.h"
+# undef __localtime_r
+# define __localtime_r localtime_r
+#endif
 
 
 /* Yield the difference between (YEAR-YDAY HOUR:MIN:SEC) and (*TP),
@@ -188,9 +181,6 @@ ranged_convert (struct tm *(*convert) (const time_t *, struct tm *),
    Use *OFFSET to keep track of a guess at the offset of the result,
    compared to what the result would be for UTC without leap seconds.
    If *OFFSET's guess is correct, only one CONVERT call is needed.  */
-#ifndef _LIBC
-static
-#endif
 time_t
 __mktime_internal (struct tm *tp,
 		   struct tm *(*convert) (const time_t *, struct tm *),
@@ -376,7 +366,7 @@ mktime (struct tm *tp)
   __tzset ();
 #endif
 
-  return __mktime_internal (tp, my_mktime_localtime_r, &localtime_offset);
+  return __mktime_internal (tp, __localtime_r, &localtime_offset);
 }
 
 #ifdef weak_alias
@@ -525,6 +515,6 @@ main (int argc, char **argv)
 
 /*
 Local Variables:
-compile-command: "gcc -DDEBUG -Wall -W -O -g mktime.c -o mktime"
+compile-command: "gcc -DDEBUG -DHAVE_TIME_R_POSIX -Wall -W -O -g mktime.c -o mktime"
 End:
 */
diff --git a/time/strftime.c b/time/strftime.c
index d83020563e..04250317e3 100644
--- a/time/strftime.c
+++ b/time/strftime.c
@@ -167,44 +167,22 @@ extern char *tzname[];
 
 
 #ifdef _LIBC
-# define my_strftime_gmtime_r __gmtime_r
-# define my_strftime_localtime_r __localtime_r
 # define tzname __tzname
 # define tzset __tzset
-#else
-
-/* If we're a strftime substitute in a GNU program, then prefer gmtime
-   to gmtime_r, since many gmtime_r implementations are buggy.
-   Similarly for localtime_r.  */
-
-# if ! HAVE_TM_GMTOFF
-static struct tm *my_strftime_gmtime_r __P ((const time_t *, struct tm *));
-static struct tm *
-my_strftime_gmtime_r (t, tp)
-     const time_t *t;
-     struct tm *tp;
-{
-  struct tm *l = gmtime (t);
-  if (! l)
-    return 0;
-  *tp = *l;
-  return tp;
-}
-# endif /* ! HAVE_TM_GMTOFF */
+#endif
 
-static struct tm *my_strftime_localtime_r __P ((const time_t *, struct tm *));
-static struct tm *
-my_strftime_localtime_r (t, tp)
-     const time_t *t;
-     struct tm *tp;
-{
-  struct tm *l = localtime (t);
-  if (! l)
-    return 0;
-  *tp = *l;
-  return tp;
-}
-#endif /* ! defined _LIBC */
+#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
@@ -1388,7 +1366,7 @@ my_strftime (s, maxsize, format, tp ut_argument LOCALE_PARAM)
 		       occurred.  */
 		    struct tm tm;
 
-		    if (! my_strftime_localtime_r (&lt, &tm)
+		    if (! __localtime_r (&lt, &tm)
 			|| ((ltm.tm_sec ^ tm.tm_sec)
 			    | (ltm.tm_min ^ tm.tm_min)
 			    | (ltm.tm_hour ^ tm.tm_hour)
@@ -1398,7 +1376,7 @@ my_strftime (s, maxsize, format, tp ut_argument LOCALE_PARAM)
 		      break;
 		  }
 
-		if (! my_strftime_gmtime_r (&lt, &gtm))
+		if (! __gmtime_r (&lt, &gtm))
 		  break;
 
 		diff = tm_diff (&ltm, &gtm);
diff --git a/time/timegm.c b/time/timegm.c
index 3a089664ca..bbc8c919ad 100644
--- a/time/timegm.c
+++ b/time/timegm.c
@@ -1,4 +1,6 @@
-/* Copyright (C) 1994, 1997 Free Software Foundation, Inc.
+/* Convert UTC calendar time to simple time.  Like mktime but assumes UTC.
+
+   Copyright (C) 1994, 1997, 2003 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
@@ -16,11 +18,29 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#include <time.h>
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef _LIBC
+# include <time.h>
+#else
+# include "timegm.h"
+
+/* Portable standalone applications should supply a "time_r.h" that
+   declares a POSIX-compliant gmtime_r, for the benefit of older
+   implementations that lack gmtime_r or have a nonstandard one.
+   See the gnulib time_r module for one way to implement this.  */
+# include <time_r.h>
+# undef __gmtime_r
+# define __gmtime_r gmtime_r
+time_t __mktime_internal (struct tm *,
+			  struct tm * (*) (time_t const *, struct tm *),
+			  time_t *);
+#endif
 
 time_t
-timegm (tmp)
-     struct tm *const tmp;
+timegm (struct tm *tmp)
 {
   static time_t gmtime_offset;
   tmp->tm_isdst = 0;