obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 72 insertions, 0 deletions

diff --git a/gcc/ada/s-imgbiu.ads b/gcc/ada/s-imgbiu.ads
new file mode 100644
index 000000000..2ddce2886
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+++ b/gcc/ada/s-imgbiu.ads
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--                       S Y S T E M . I M G _ B I U                        --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--           Copyright (C) 1992-2009 Free Software Foundation, Inc.         --
+--                                                                          --
+-- GNAT is free software;  you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
+--                                                                          --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception,   --
+-- version 3.1, as published by the Free Software Foundation.               --
+--                                                                          --
+-- You should have received a copy of the GNU General Public License and    --
+-- a copy of the GCC Runtime Library Exception along with this program;     --
+-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
+-- <http://www.gnu.org/licenses/>.                                          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  Contains the routine for computing the image in based format of signed and
+--  unsigned integers whose size <= Integer'Size for use by Text_IO.Integer_IO
+--  and Text_IO.Modular_IO.
+
+with System.Unsigned_Types;
+
+package System.Img_BIU is
+   pragma Pure;
+
+   procedure Set_Image_Based_Integer
+     (V : Integer;
+      B : Natural;
+      W : Integer;
+      S : out String;
+      P : in out Natural);
+   --  Sets the signed image of V in based format, using base value B (2..16)
+   --  starting at S (P + 1), updating P to point to the last character stored.
+   --  The image includes a leading minus sign if necessary, but no leading
+   --  spaces unless W is positive, in which case leading spaces are output if
+   --  necessary to ensure that the output string is no less than W characters
+   --  long. The caller promises that the buffer is large enough and no check
+   --  is made for this. Constraint_Error will not necessarily be raised if
+   --  this is violated, since it is perfectly valid to compile this unit with
+   --  checks off.
+
+   procedure Set_Image_Based_Unsigned
+     (V : System.Unsigned_Types.Unsigned;
+      B : Natural;
+      W : Integer;
+      S : out String;
+      P : in out Natural);
+   --  Sets the unsigned image of V in based format, using base value B (2..16)
+   --  starting at S (P + 1), updating P to point to the last character stored.
+   --  The image includes no leading spaces unless W is positive, in which case
+   --  leading spaces are output if necessary to ensure that the output string
+   --  is no less than W characters long. The caller promises that the buffer
+   --  is large enough and no check is made for this. Constraint_Error will not
+   --  necessarily be raised if this is violated, since it is perfectly valid
+   --  to compile this unit with checks off).
+
+end System.Img_BIU;