--- a/lib/strftime.c
+++ b/lib/strftime.c
@@ -1,21 +1,22 @@
 /* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
 
-   NOTE: The canonical source of this file is maintained with the GNU C
-   Library.  Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+NOTE: The canonical source of this file is maintained with the GNU C Library.
+Bugs can be reported to bug-glibc@prep.ai.mit.edu.
 
-   This program 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 2, or (at your option) any
-   later version.
+This program 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 2, or (at your option) any
+later version.
 
-   This program 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.
+This program 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 this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+USA.  */
 
 #ifdef HAVE_CONFIG_H
 # include <config.h>
@@ -176,11 +177,12 @@
 /* Some systems lack the `memset' function and we don't want to
    introduce additional dependencies.  */
 static const char spaces[16] = "                ";
+static const char zeroes[16] = "0000000000000000";
 
 # define memset_space(P, Len) \
   do {									      \
     int _len = (Len);							      \
-    									      \
+									      \
     do									      \
       {									      \
 	int _this = _len > 16 ? 16 : _len;				      \
@@ -190,11 +192,26 @@
       }									      \
     while (_len > 0);							      \
   } while (0)
+
+# define memset_zero(P, Len) \
+  do {									      \
+    int _len = (Len);							      \
+									      \
+    do									      \
+      {									      \
+	int _this = _len > 16 ? 16 : _len;				      \
+	memcpy ((P), zeroes, _this);					      \
+	(P) += _this;							      \
+	_len -= _this;							      \
+      }									      \
+    while (_len > 0);							      \
+  } while (0)
 #else
-# define memset_space(P, Len) memset ((P), ' ', (Len))
+# define memset_space(P, Len) (memset ((P), ' ', (Len)), (P) += (Len))
+# define memset_zero(P, Len) (memset ((P), '0', (Len)), (P) += (Len))
 #endif
 
-#define	add(n, f) \
+#define	add(n, f)							      \
   do									      \
     {									      \
       int _n = (n);							      \
@@ -205,7 +222,12 @@
       if (p)								      \
 	{								      \
 	  if (_delta > 0)						      \
-	    memset_space (p, _delta);					      \
+	    {								      \
+	      if (pad == '0')						      \
+		memset_zero (p, _delta);				      \
+	      else							      \
+		memset_space (p, _delta);				      \
+	    }								      \
 	  f;								      \
 	  p += _n;							      \
 	}								      \
@@ -349,11 +371,11 @@
 # ifdef strftime
 #  undef strftime
 # endif
-# define strftime _strftime_copytm
+# define strftime(S, Maxsize, Format, Tp) \
+  _strftime_copytm (S, Maxsize, Format, Tp)
 #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