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, 133 insertions, 0 deletions

diff --git a/gcc/ada/prj-ext.adb b/gcc/ada/prj-ext.adb
new file mode 100644
index 000000000..9c7458e95
--- /dev/null
+++ b/gcc/ada/prj-ext.adb
@@ -0,0 +1,133 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                              P R J . E X T                               --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 2000-2010, 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 Osint;    use Osint;
+with Prj.Tree; use Prj.Tree;
+
+package body Prj.Ext is
+
+   ---------
+   -- Add --
+   ---------
+
+   procedure Add
+     (Tree          : Prj.Tree.Project_Node_Tree_Ref;
+      External_Name : String;
+      Value         : String)
+   is
+      The_Key   : Name_Id;
+      The_Value : Name_Id;
+   begin
+      Name_Len := Value'Length;
+      Name_Buffer (1 .. Name_Len) := Value;
+      The_Value := Name_Find;
+      Name_Len := External_Name'Length;
+      Name_Buffer (1 .. Name_Len) := External_Name;
+      Canonical_Case_Env_Var_Name (Name_Buffer (1 .. Name_Len));
+      The_Key := Name_Find;
+      Name_To_Name_HTable.Set (Tree.External_References, The_Key, The_Value);
+   end Add;
+
+   -----------
+   -- Check --
+   -----------
+
+   function Check
+     (Tree        : Prj.Tree.Project_Node_Tree_Ref;
+      Declaration : String) return Boolean
+   is
+   begin
+      for Equal_Pos in Declaration'Range loop
+         if Declaration (Equal_Pos) = '=' then
+            exit when Equal_Pos = Declaration'First;
+            Add
+              (Tree          => Tree,
+               External_Name =>
+                 Declaration (Declaration'First .. Equal_Pos - 1),
+               Value         =>
+                 Declaration (Equal_Pos + 1 .. Declaration'Last));
+            return True;
+         end if;
+      end loop;
+
+      return False;
+   end Check;
+
+   -----------
+   -- Reset --
+   -----------
+
+   procedure Reset (Tree : Prj.Tree.Project_Node_Tree_Ref) is
+   begin
+      Name_To_Name_HTable.Reset (Tree.External_References);
+   end Reset;
+
+   --------------
+   -- Value_Of --
+   --------------
+
+   function Value_Of
+     (Tree          : Prj.Tree.Project_Node_Tree_Ref;
+      External_Name : Name_Id;
+      With_Default  : Name_Id := No_Name)
+      return          Name_Id
+   is
+      The_Value : Name_Id;
+      Name      : String := Get_Name_String (External_Name);
+
+   begin
+      Canonical_Case_Env_Var_Name (Name);
+      Name_Len := Name'Length;
+      Name_Buffer (1 .. Name_Len) := Name;
+      The_Value :=
+        Name_To_Name_HTable.Get (Tree.External_References, Name_Find);
+
+      if The_Value /= No_Name then
+         return The_Value;
+      end if;
+
+      --  Find if it is an environment, if it is, put value in the hash table
+
+      declare
+         Env_Value : String_Access := Getenv (Name);
+
+      begin
+         if Env_Value /= null and then Env_Value'Length > 0 then
+            Name_Len := Env_Value'Length;
+            Name_Buffer (1 .. Name_Len) := Env_Value.all;
+            The_Value := Name_Find;
+            Name_To_Name_HTable.Set
+              (Tree.External_References, External_Name, The_Value);
+            Free (Env_Value);
+            return The_Value;
+
+         else
+            Free (Env_Value);
+            return With_Default;
+         end if;
+      end;
+   end Value_Of;
+
+end Prj.Ext;