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, 182 insertions, 0 deletions

diff --git a/gcc/ada/a-dirval-mingw.adb b/gcc/ada/a-dirval-mingw.adb
new file mode 100644
index 000000000..d73f56840
--- /dev/null
+++ b/gcc/ada/a-dirval-mingw.adb
@@ -0,0 +1,182 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--             A D A . D I R E C T O R I E S . V A L I D I T Y              --
+--                                                                          --
+--                                 B o d y                                  --
+--                            (Windows Version)                             --
+--                                                                          --
+--          Copyright (C) 2004-2009, 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This is the Windows version of this package
+
+with Ada.Characters.Latin_1; use Ada.Characters.Latin_1;
+
+package body Ada.Directories.Validity is
+
+   Invalid_Character : constant array (Character) of Boolean :=
+                         (NUL .. US | '\'       => True,
+                          '/' | ':' | '*' | '?' => True,
+                          '"' | '<' | '>' | '|' => True,
+                          DEL .. NBSP           => True,
+                          others                => False);
+
+   ---------------------------------
+   -- Is_Path_Name_Case_Sensitive --
+   ---------------------------------
+
+   function Is_Path_Name_Case_Sensitive return Boolean is
+   begin
+      return False;
+   end Is_Path_Name_Case_Sensitive;
+
+   ------------------------
+   -- Is_Valid_Path_Name --
+   ------------------------
+
+   function Is_Valid_Path_Name (Name : String) return Boolean is
+      Start : Positive := Name'First;
+      Last  : Natural;
+
+   begin
+      --  A path name cannot be empty, cannot contain more than 256 characters,
+      --  cannot contain invalid characters and each directory/file name need
+      --  to be valid.
+
+      if Name'Length = 0 or else Name'Length > 256 then
+         return False;
+
+      else
+         --  A drive letter may be specified at the beginning
+
+         if Name'Length >= 2
+           and then  Name (Start + 1) = ':'
+           and then
+            (Name (Start) in 'A' .. 'Z' or else
+             Name (Start) in 'a' .. 'z')
+         then
+            Start := Start + 2;
+
+            --  A drive letter followed by a colon and followed by nothing or
+            --  by a relative path is an ambiguous path name on Windows, so we
+            --  don't accept it.
+
+            if Start > Name'Last
+              or else (Name (Start) /= '/' and then Name (Start) /= '\')
+            then
+               return False;
+            end if;
+         end if;
+
+         loop
+            --  Look for the start of the next directory or file name
+
+            while Start <= Name'Last and then
+              (Name (Start) = '\' or Name (Start) = '/')
+            loop
+               Start := Start + 1;
+            end loop;
+
+            --  If all directories/file names are OK, return True
+
+            exit when Start > Name'Last;
+
+            Last := Start;
+
+            --  Look for the end of the directory/file name
+
+            while Last < Name'Last loop
+               exit when Name (Last + 1) = '\' or Name (Last + 1) = '/';
+               Last := Last + 1;
+            end loop;
+
+            --  Check if the directory/file name is valid
+
+            if not Is_Valid_Simple_Name (Name (Start .. Last)) then
+                  return False;
+            end if;
+
+            --  Move to the next name
+
+            Start := Last + 1;
+         end loop;
+      end if;
+
+      --  If Name follows the rules, it is valid
+
+      return True;
+   end Is_Valid_Path_Name;
+
+   --------------------------
+   -- Is_Valid_Simple_Name --
+   --------------------------
+
+   function Is_Valid_Simple_Name (Name : String) return Boolean is
+      Only_Spaces : Boolean;
+
+   begin
+      --  A file name cannot be empty, cannot contain more than 256 characters,
+      --  and cannot contain invalid characters.
+
+      if Name'Length = 0 or else Name'Length > 256 then
+         return False;
+
+      --  Name length is OK
+
+      else
+         Only_Spaces := True;
+         for J in Name'Range loop
+            if Invalid_Character (Name (J)) then
+               return False;
+            elsif Name (J) /= ' ' then
+               Only_Spaces := False;
+            end if;
+         end loop;
+
+         --  If no invalid chars, and not all spaces, file name is valid
+
+         return not Only_Spaces;
+      end if;
+   end Is_Valid_Simple_Name;
+
+   -------------
+   -- OpenVMS --
+   -------------
+
+   function OpenVMS return Boolean is
+   begin
+      return False;
+   end OpenVMS;
+
+   -------------
+   -- Windows --
+   -------------
+
+   function Windows return Boolean is
+   begin
+      return True;
+   end Windows;
+
+end Ada.Directories.Validity;