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',
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1 files changed, 68 insertions, 0 deletions

diff --git a/gcc/ada/prj-pars.ads b/gcc/ada/prj-pars.ads
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                              P R J . P A R S                             --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 2000-2009, 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.  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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  General wrapper for the parsing of project files
+
+with Prj.Tree;
+
+package Prj.Pars is
+
+   procedure Set_Verbosity (To : Verbosity);
+   --  Set the verbosity when parsing the project files
+
+   procedure Parse
+     (In_Tree           : Project_Tree_Ref;
+      Project           : out Project_Id;
+      Project_File_Name : String;
+      Packages_To_Check : String_List_Access := All_Packages;
+      Flags             : Processing_Flags;
+      Reset_Tree        : Boolean := True;
+      In_Node_Tree      : Prj.Tree.Project_Node_Tree_Ref := null);
+   --  Parse and process a project files and all its imported project files, in
+   --  the project tree In_Tree.
+   --  All the project files are parsed (through Prj.Tree) to create a tree in
+   --  memory. That tree is then processed (through Prj.Proc) to create a
+   --  expanded representation of the tree based on the current external
+   --  references. This function is only a convenient wrapper over other
+   --  services provided in the Prj.* package hierarchy.
+   --
+   --  If parsing is successful, Project is the project ID of the root project
+   --  file; otherwise, Project_Id is set to No_Project. Project_Node_Tree is
+   --  set to the tree (unprocessed) representation of the project file. This
+   --  tree is permanently correct, whereas Project will need to be recomputed
+   --  if the external references change.
+   --
+   --  Packages_To_Check indicates the packages where any unknown attribute
+   --  produces an error. For other packages, an unknown attribute produces a
+   --  warning.
+   --
+   --  When Reset_Tree is True, all the project data are removed from the
+   --  project table before processing.
+   --
+   --  In_Node_Tree (if given) must have been Initialized. The main reason to
+   --  pass an existing tree, is to pass the external references that will then
+   --  be used to process the tree.
+
+end Prj.Pars;