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diff --git a/ghc/rts/gmp/mpz/sqrt.c b/ghc/rts/gmp/mpz/sqrt.c
deleted file mode 100644
index fe82fe4..0000000
--- a/ghc/rts/gmp/mpz/sqrt.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/* mpz_sqrt(root, u) --  Set ROOT to floor(sqrt(U)).
-
-Copyright (C) 1991, 1993, 1994, 1996, 2000 Free Software Foundation, Inc.
-
-This file is part of the GNU MP Library.
-
-The GNU MP Library is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or (at your
-option) any later version.
-
-The GNU MP 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 Lesser General Public
-License for more details.
-
-You should have received a copy of the GNU Lesser General Public License
-along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-MA 02111-1307, USA. */
-
-#include <stdio.h> /* for NULL */
-#include "gmp.h"
-#include "gmp-impl.h"
-
-void
-#if __STDC__
-mpz_sqrt (mpz_ptr root, mpz_srcptr op)
-#else
-mpz_sqrt (root, op)
-     mpz_ptr root;
-     mpz_srcptr op;
-#endif
-{
-  mp_size_t op_size, root_size;
-  mp_ptr root_ptr, op_ptr;
-  mp_ptr free_me = NULL;
-  mp_size_t free_me_size;
-  TMP_DECL (marker);
-
-  TMP_MARK (marker);
-  op_size = op->_mp_size;
-  if (op_size < 0)
-    SQRT_OF_NEGATIVE;
-
-  /* The size of the root is accurate after this simple calculation.  */
-  root_size = (op_size + 1) / 2;
-
-  root_ptr = root->_mp_d;
-  op_ptr = op->_mp_d;
-
-  if (root->_mp_alloc < root_size)
-    {
-      if (root_ptr == op_ptr)
-	{
-	  free_me = root_ptr;
-	  free_me_size = root->_mp_alloc;
-	}
-      else
-	(*_mp_free_func) (root_ptr, root->_mp_alloc * BYTES_PER_MP_LIMB);
-
-      root->_mp_alloc = root_size;
-      root_ptr = (mp_ptr) (*_mp_allocate_func) (root_size * BYTES_PER_MP_LIMB);
-      root->_mp_d = root_ptr;
-    }
-  else
-    {
-      /* Make OP not overlap with ROOT.  */
-      if (root_ptr == op_ptr)
-	{
-	  /* ROOT and OP are identical.  Allocate temporary space for OP.  */
-	  op_ptr = (mp_ptr) TMP_ALLOC (op_size * BYTES_PER_MP_LIMB);
-	  /* Copy to the temporary space.  Hack: Avoid temporary variable
-	     by using ROOT_PTR.  */
-	  MPN_COPY (op_ptr, root_ptr, op_size);
-	}
-    }
-
-  mpn_sqrtrem (root_ptr, NULL, op_ptr, op_size);
-
-  root->_mp_size = root_size;
-
-  if (free_me != NULL)
-    (*_mp_free_func) (free_me, free_me_size * BYTES_PER_MP_LIMB);
-  TMP_FREE (marker);
-}