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diff --git a/sysdeps/generic/memccpy.c b/sysdeps/generic/memccpy.c
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+/* Copyright (C) 1991, 1995 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <stddef.h>	/* For size_t and NULL.	*/
+
+
+/*
+ * Copy no more than N bytes of SRC to DEST, stopping when C is found.
+ * Return the position in DEST one byte past where C was copied,
+ * or NULL if C was not found in the first N bytes of SRC.
+ */
+PTR
+DEFUN(__memccpy, (dest, src, c, n),
+      PTR dest AND CONST PTR src AND int c AND size_t n)
+{
+  register CONST char *s = src;
+  register char *d = dest;
+  register CONST int x = (unsigned char) c;
+  register size_t i = n;
+
+  while (i-- > 0)
+    if ((*d++ = *s++) == x)
+      return d;
+
+  return NULL;
+}
+
+weak_alias (__memccpy, memccpy)