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diff --git a/lib/realloc.c b/lib/realloc.c
deleted file mode 100644
index b61c2ca8..00000000
--- a/lib/realloc.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/* realloc() function that is glibc compatible.
-
-   Copyright (C) 1997, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
-
-   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 3 of the License, 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.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* written by Jim Meyering and Bruno Haible */
-
-#include <config.h>
-
-/* Only the AC_FUNC_REALLOC macro defines 'realloc' already in config.h.  */
-#ifdef realloc
-# define NEED_REALLOC_GNU 1
-#endif
-
-/* Infer the properties of the system's malloc function.
-   Only the AC_FUNC_MALLOC macro defines 'malloc' already in config.h.  */
-#if GNULIB_MALLOC_GNU && !defined malloc
-# define SYSTEM_MALLOC_GLIBC_COMPATIBLE 1
-#endif
-
-/* Below we want to call the system's malloc and realloc.
-   Undefine the symbols here so that including <stdlib.h> provides a
-   declaration of malloc(), not of rpl_malloc(), and likewise for realloc.  */
-#undef malloc
-#undef realloc
-
-/* Specification.  */
-#include <stdlib.h>
-
-#include <errno.h>
-
-/* Below we want to call the system's malloc and realloc.
-   Undefine the symbols, if they were defined by gnulib's <stdlib.h>
-   replacement.  */
-#undef malloc
-#undef realloc
-
-/* Change the size of an allocated block of memory P to N bytes,
-   with error checking.  If N is zero, change it to 1.  If P is NULL,
-   use malloc.  */
-
-void *
-rpl_realloc (void *p, size_t n)
-{
-  void *result;
-
-#if NEED_REALLOC_GNU
-  if (n == 0)
-    {
-      n = 1;
-
-      /* In theory realloc might fail, so don't rely on it to free.  */
-      free (p);
-      p = NULL;
-    }
-#endif
-
-  if (p == NULL)
-    {
-#if GNULIB_REALLOC_GNU && !NEED_REALLOC_GNU && !SYSTEM_MALLOC_GLIBC_COMPATIBLE
-      if (n == 0)
-	n = 1;
-#endif
-      result = malloc (n);
-    }
-  else
-    result = realloc (p, n);
-
-#if !HAVE_REALLOC_POSIX
-  if (result == NULL)
-    errno = ENOMEM;
-#endif
-
-  return result;
-}