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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- H O S T P A R M --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 1992-2012, 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 package defines some system dependent parameters for GNAT. These
+-- are parameters that are relevant to the host machine on which the
+-- compiler is running, and thus this package is part of the compiler.
+
+with Types;
+
+package Hostparm is
+
+ ---------------------
+ -- HOST Parameters --
+ ---------------------
+
+ Gnat_VMSp : Integer;
+ pragma Import (C, Gnat_VMSp, "__gnat_vmsp");
+
+ OpenVMS : Boolean := Gnat_VMSp /= 0;
+ -- Set True for OpenVMS host. See also OpenVMS target boolean in
+ -- system-vms.ads and system-vms_64.ads and OpenVMS_On_Target boolean in
+ -- Targparm. This is not a constant, because it can be modified by -gnatdm.
+
+ Direct_Separator : constant Character;
+ pragma Import (C, Direct_Separator, "__gnat_dir_separator");
+ Normalized_CWD : constant String := "." & Direct_Separator;
+ -- Normalized string to access current directory
+
+ Max_Line_Length : constant := Types.Column_Number'Pred
+ (Types.Column_Number'Last);
+ -- Maximum source line length. By default we set it to the maximum
+ -- value that can be supported, which is given by the range of the
+ -- Column_Number type. We subtract 1 because need to be able to
+ -- have a valid Column_Number equal to Max_Line_Length to represent
+ -- the location of a "line too long" error.
+ -- 200 is the minimum value required (RM 2.2(15)). The value set here
+ -- can be reduced by the explicit use of the -gnatyM style switch.
+
+ Max_Name_Length : constant := 1024;
+ -- Maximum length of unit name (including all dots, and " (spec)") and
+ -- of file names in the library, must be at least Max_Line_Length, but
+ -- can be larger.
+
+ Tag_Errors : constant Boolean := False;
+ -- If set to true, then brief form error messages will be prefaced by
+ -- the string "error:". Used as default for Opt.Unique_Error_Tag.
+
+ Exclude_Missing_Objects : constant Boolean := True;
+ -- If set to true, gnatbind will exclude from consideration all
+ -- non-existent .o files.
+
+ Max_Debug_Name_Length : constant := 256;
+ -- If a generated qualified debug name exceeds this length, then it
+ -- is automatically compressed, regardless of the setting of the
+ -- Compress_Debug_Names switch controlled by -gnatC.
+
+end Hostparm;