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, 68 insertions, 0 deletions

diff --git a/gcc/ada/sinfo-cn.ads b/gcc/ada/sinfo-cn.ads
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                             S I N F O . C N                              --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 1992-2007, 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.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNAT; see file COPYING3.  If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license.          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This child package of Sinfo contains some routines that permit in place
+--  alteration of existing tree nodes by changing the value in the Nkind
+--  field. Since Nkind functions logically in a manner similar to a variant
+--  record discriminant part, such alterations cannot be permitted in a
+--  general manner, but in some specific cases, the fields of related nodes
+--  have been deliberately laid out in a manner that permits such alteration.
+
+package Sinfo.CN is
+
+   procedure Change_Identifier_To_Defining_Identifier (N : in out Node_Id);
+   --  N must refer to a node of type N_Identifier. This node is modified to
+   --  be of type N_Defining_Identifier. The scanner always returns identifiers
+   --  as N_Identifier. The parser then uses this routine to change the node
+   --  to be a defining identifier where the context demands it. This routine
+   --  also allocates the necessary extension node. Note that this procedure
+   --  may (but is not required to) change the Id of the node in question.
+
+   procedure Change_Character_Literal_To_Defining_Character_Literal
+     (N : in out Node_Id);
+   --  Similar processing for a character literal
+
+   procedure Change_Operator_Symbol_To_Defining_Operator_Symbol
+     (N : in out Node_Id);
+   --  Similar processing for an operator symbol
+
+   procedure Change_Conversion_To_Unchecked (N : Node_Id);
+   --  Change checked conversion node to unchecked conversion node, clearing
+   --  irrelevant check flags (other fields in the two nodes are identical)
+
+   procedure Change_Operator_Symbol_To_String_Literal (N : Node_Id);
+   --  The scanner returns any string that looks like an operator symbol as
+   --  a N_Operator_Symbol node. The parser then uses this procedure to change
+   --  the node to a normal N_String_Literal node if the context is not one
+   --  in which an operator symbol is required. There are some cases where the
+   --  parser cannot tell, in which case this transformation happens later on.
+
+   procedure Change_Selected_Component_To_Expanded_Name (N : Node_Id);
+   --  The parser always generates Selected_Component nodes. The semantics
+   --  modifies these to Expanded_Name nodes where appropriate. Note that
+   --  on return the Chars field is set to a copy of the contents of the
+   --  Chars field of the Selector_Name field.
+
+end Sinfo.CN;