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
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 135 insertions, 0 deletions

diff --git a/gcc/ada/prep.ads b/gcc/ada/prep.ads
new file mode 100644
index 000000000..801167ee5
--- /dev/null
+++ b/gcc/ada/prep.ads
@@ -0,0 +1,135 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                                 P R E P                                  --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 2002-2008, 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with GNAT.Dynamic_Tables;
+
+with Namet; use Namet;
+with Types; use Types;
+
+package Prep is
+
+   -----------------
+   -- Symbol Data --
+   -----------------
+
+   type Symbol_Data is record
+      Symbol : Name_Id := No_Name;
+      --  The symbol in lower case
+
+      Original : Name_Id := No_Name;
+      --  The symbol as originally given in the definition file or on
+      --  the command line.
+
+      On_The_Command_Line : Boolean := False;
+      --  Set to True if symbol is defined on the command line.
+      --  Used to prevent replacement of command line symbols by definition
+      --  file symbols.
+
+      Is_A_String : Boolean := False;
+      --  Indicate if the value of the symbol has been specified as a string
+      --  or simply as a sequence of characters.
+
+      Value : String_Id := No_String;
+      --  The value of the symbol (string or sequence of characters)
+
+   end record;
+
+   True_Value : Symbol_Data :=
+     (Symbol              => No_Name,
+      Original            => No_Name,
+      On_The_Command_Line => False,
+      Is_A_String         => False,
+      Value               => No_String);
+
+   type Symbol_Id is new Nat;
+   No_Symbol : constant Symbol_Id := 0;
+
+   package Symbol_Table is new GNAT.Dynamic_Tables
+     (Table_Component_Type => Symbol_Data,
+      Table_Index_Type     => Symbol_Id,
+      Table_Low_Bound      => 1,
+      Table_Initial        => 10,
+      Table_Increment      => 100);
+   --  The table of all symbols
+
+   Mapping : Symbol_Table.Instance;
+   --  The mapping table of symbols to values used by procedure Parse_Def_File
+   --  and Preprocess.
+
+   function Index_Of (Symbol : Name_Id) return Symbol_Id;
+   --  Return the index in the Mapping table of Symbol.
+   --  Return No_Symbol if Symbol in not in the Mapping table.
+
+   --  Access to procedure types used by procedure Initialize below:
+
+   type Error_Msg_Proc is access procedure
+     (Msg : String; Flag_Location : Source_Ptr);
+
+   type Scan_Proc is access procedure;
+
+   type Set_Ignore_Errors_Proc is access procedure (To : Boolean);
+
+   type Put_Char_Proc is access procedure (C : Character);
+
+   type New_EOL_Proc is access procedure;
+
+   procedure Initialize;
+   --  Initialize the preprocessor's global structures
+
+   procedure Setup_Hooks
+     (Error_Msg         : Error_Msg_Proc;
+      Scan              : Scan_Proc;
+      Set_Ignore_Errors : Set_Ignore_Errors_Proc;
+      Put_Char          : Put_Char_Proc;
+      New_EOL           : New_EOL_Proc);
+   --  Set the i/o hooks used by the preprocessor
+
+   procedure Parse_Def_File;
+   --  Parse the definition file. The definition file must have already been
+   --  loaded and the scanner initialized.
+
+   procedure Preprocess (Source_Modified : out Boolean);
+   --  Preprocess the input file. The input file must have already been loaded
+   --  and the scanner initialized. Source_Modified is set to True iff the
+   --  preprocessor modified the source text.
+
+   procedure Check_Command_Line_Symbol_Definition
+     (Definition  : String;
+      Data        : out Symbol_Data);
+   --  Check the validity of a command line definition <symbol>=<value>.
+   --  Return the symbol and its value in Data if the definition is valid,
+   --  fail if it is not valid.
+
+   procedure Change_Reserved_Keyword_To_Symbol
+     (All_Keywords : Boolean := False);
+   --  If Token is an Ada reserved word (other than IF, ELSIF, ELSE,
+   --  END, AND, OR, THEN when All_Keywords is False), change it to
+   --  Tok_Identifier with the corresponding Token_Name.
+
+   procedure List_Symbols (Foreword : String);
+   --  List the symbols used for preprocessing a file, with their values.
+   --  If Foreword is not empty, Output Foreword before the list.
+
+end Prep;