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diff --git a/src/ghdldrv/ghdllocal.ads b/src/ghdldrv/ghdllocal.ads
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+++ b/src/ghdldrv/ghdllocal.ads
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+--  GHDL driver - local commands.
+--  Copyright (C) 2002, 2003, 2004, 2005 Tristan Gingold
+--
+--  GHDL is free software; you can redistribute it and/or modify it under
+--  the terms of the GNU General Public License as published by the Free
+--  Software Foundation; either version 2, or (at your option) any later
+--  version.
+--
+--  GHDL is distributed in the hope that it will be useful, but WITHOUT 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
+--  along with GCC; see the file COPYING.  If not, write to the Free
+--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+--  02111-1307, USA.
+with GNAT.OS_Lib; use GNAT.OS_Lib;
+with Ghdlmain; use Ghdlmain;
+with Iirs; use Iirs;
+
+package Ghdllocal is
+   type Command_Lib is abstract new Command_Type with null record;
+
+   --  Setup GHDL.
+   procedure Init (Cmd : in out Command_Lib);
+
+   --  Handle:
+   --  --std=xx, --work=xx, -Pxxx, --workdir=x, --ieee=x, -Px, and -v
+   procedure Decode_Option (Cmd : in out Command_Lib;
+                            Option : String;
+                            Arg : String;
+                            Res : out Option_Res);
+
+   --  Disp detailled help.
+   procedure Disp_Long_Help (Cmd : Command_Lib);
+
+   --  Value of --PREFIX
+   Switch_Prefix_Path : String_Access := null;
+
+   --  getenv ("GHDL_PREFIX").  Set by Setup_Libraries.
+   Prefix_Env : String_Access := null;
+
+   --  Installation prefix (deduced from executable path).
+   Exec_Prefix : String_Access;
+
+   --  Path prefix for libraries.
+   Lib_Prefix_Path : String_Access := null;
+
+   --  Set with -v option.
+   Flag_Verbose : Boolean := False;
+
+   --  Suffix for asm files.
+   Asm_Suffix : constant String := ".s";
+
+   --  Suffix for llvm byte-code files.
+   Llvm_Suffix : constant String := ".bc";
+
+   --  Suffix for post files.
+   Post_Suffix : constant String := ".on";
+
+   --  Suffix for list files.
+   List_Suffix : constant String := ".lst";
+
+   --  Prefix for elab files.
+   Elab_Prefix : constant String := "e~";
+
+   Nul : constant Character := Character'Val (0);
+
+   --  Return FILENAME without the extension.
+   function Get_Base_Name (Filename : String; Remove_Dir : Boolean := True)
+                          return String;
+
+   --  Get the position of the last directory separator or 0 if none.
+   function Get_Basename_Pos (Pathname : String) return Natural;
+
+   function Append_Suffix (File : String; Suffix : String)
+                          return String_Access;
+
+   --  Return TRUE is UNIT can be at the apex of a design hierarchy.
+   function Is_Top_Entity (Unit : Iir) return Boolean;
+
+   --  Display the name of library unit UNIT.
+   procedure Disp_Library_Unit (Unit : Iir);
+
+   --  Translate vhdl version into a path element.
+   --  Used to search Std and IEEE libraries.
+   function Get_Version_Path return String;
+
+   -- Get Prefix_Path, but with 32 added if -m32 is requested
+   function Get_Machine_Path_Prefix return String;
+
+   --  Setup standard libaries path.  If LOAD is true, then load them now.
+   procedure Setup_Libraries (Load : Boolean);
+
+   --  Setup library, analyze FILES, and if SAVE_LIBRARY is set save the
+   --  work library only
+   procedure Analyze_Files (Files : Argument_List; Save_Library : Boolean);
+
+   --  Load and parse all libraries and files, starting from the work library.
+   --  The work library must already be loaded.
+   --  Raise errorout.compilation_error in case of error (parse error).
+   procedure Load_All_Libraries_And_Files;
+
+   function Build_Dependence (Prim : String_Access; Sec : String_Access)
+     return Iir_List;
+
+   Prim_Name : String_Access;
+   Sec_Name : String_Access;
+
+   --  Set PRIM_NAME and SEC_NAME.
+   procedure Extract_Elab_Unit
+     (Cmd_Name : String; Args : Argument_List; Next_Arg : out Natural);
+
+   procedure Register_Commands;
+end Ghdllocal;