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From: "Adrian Hoe" <byhoe@greenlime.com>
Newsgroups: comp.lang.ada
Subject: A bug in gnat/gcc 3.3.3?
Date: 4 Jan 2005 07:58:43 -0800
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Date: 2005-01-04T07:58:43-08:00
List-Id: <comp.lang.ada>

Hi and Happy New Year everyone :-),

I tried to compile the dgate.adb in GtkAda-2.2.1 with gnat/gcc 3.3.3
under SuSE Linux 9.1 Pro and I got an error:

% make dgate
gnatmake: objects up to date.
make -C glade
make[1]: Entering directory
`/home/byhoe/download/GtkAda-2.2.1/src/glade'
make[1]: Leaving directory
`/home/byhoe/download/GtkAda-2.2.1/src/glade'
gcc -c -Iglade -O2 -gnatn -gnatws dgate.adb
+===========================GNAT BUG
DETECTED==============================+
| 3.3.3 (SuSE Linux) (i586-suse-linux-gnu) Gigi abort, Code=411
|
| Error detected at dgate.adb:76:48
|
| Please submit a bug report; see http://gcc.gnu.org/bugs.html.
|
| Include the entire contents of this bug box in the report.
|
| Include the exact gcc or gnatmake command that you entered.
|
| Also include sources listed below in gnatchop format
|
| concatenated together with no headers between files.
|
+==========================================================================+


In dgate.adb

...
procedure Register_Signals (N : Node_Ptr) is
P       : Node_Ptr;
Name    : String_Ptr;
Handler : String_Ptr;
S       : String_Access;

begin
if N.Tag.all = "signal" then
Name := Get_Field (N, "name");
Handler := Get_Field (N, "handler");

if Name /= null then
S := new String '(Name.all & ':' & Handler.all);   -- Line
76
-- Col 48
...


In line 128 of dgate.adb, a compilation error indicated that no Init
had been defined in package Glade. Below is the full source file for
dgate.adb.

-----------------------------------------------------------------------
--                   DGate - GtkAda Components                       --
--                                                                   --
--                    Copyright (C) 1999-2000                        --
--        Emmanuel Briot, Joel Brobecker and Arnaud Charlet          --
--                                                                   --
-- Dynagate 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 of the License, --
-- or (at your option) any later version.                            --
--                                                                   --
-- This program 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 this library; --
-- if not,  write to the  Free Software Foundation, Inc.,  59 Temple --
-- Place - Suite 330, Boston, MA 02111-1307, USA.                    --
-----------------------------------------------------------------------

--  Parse a Glade's XML project file, declare the required callbacks
and
--  create the widgets associated with the project file.
--  DGate can very easily be used in conjunction with GLADE to test
during
--  the development.

with Ada.Command_Line; use Ada.Command_Line;
with Ada.Text_IO; use Ada.Text_IO;
with Glib.Glade;
with Gtk; use Gtk;
with Glade; use Glade;
with Glade.XML; use Glade.XML;
with Gtk.Main;
with DGate_Callbacks;
with System;
with Unchecked_Conversion;
with GNAT.OS_Lib;
with GNAT.Command_Line; use GNAT.Command_Line;

procedure DGate is

use Glib;
use Glib.Glade;
use Glib.Glade.Glib_XML;

package My_Timeout is new Gtk.Main.Timeout (Integer);

type String_Access is access all String;
for String_Access'Size use Standard'Address_Size;

N        : Node_Ptr;
Id       : Gtk.Main.Timeout_Handler_Id;
Timeout  : Guint32 := 0;
Filename : String_Ptr;
XML      : Glade_XML;

function To_Address is new Unchecked_Conversion
(String_Access, System.Address);

procedure Register_Signals (N : Node_Ptr);
--  Call Set_Signal for each signal declared in the N tree.

procedure Usage;

procedure Register_Signals (N : Node_Ptr) is
P       : Node_Ptr;
Name    : String_Ptr;
Handler : String_Ptr;
S       : String_Access;

begin
if N.Tag.all = "signal" then
Name := Get_Field (N, "name");
Handler := Get_Field (N, "handler");

if Name /= null then
S := new String '(Name.all & ':' & Handler.all);
Signal_Connect
(XML, Handler.all,
DGate_Callbacks.Generic_Callback'Address,
To_Address (S));
return;
end if;
end if;

if N.Child /= null then
Register_Signals (N.Child);
P := N.Child.Next;

while P /= null loop
Register_Signals (P);
P := P.Next;
end loop;
end if;
end Register_Signals;

procedure Usage is
begin
Ada.Text_IO.Put_Line ("Usage: dgate project-file");
end Usage;

begin
if Argument_Count = 0 then
Usage;
else
loop
case Getopt ("timeout:") is
when ASCII.NUL => exit;

when 't' =>
if Full_Switch = "timeout" then
Timeout := Guint32'Value (Parameter);
else
raise Program_Error;
end if;

when others =>
raise Program_Error;         -- cannot occur!
end case;
end loop;

Filename := new String '(Get_Argument);

if not GNAT.OS_Lib.Is_Regular_File (Filename.all) then
Put_Line (Filename.all & " is not a regular file");
return;
end if;

Gtk.Main.Init;
--      Glade.Init;         -- This line is also generate a compilation
error as no Init is defined in package Glade
N := Parse (Filename.all);
Gtk_New (XML, Filename.all);
Register_Signals (N);

if Timeout > 0 then
--  Let the application run for timeout milliseconds and then
quit

Id := My_Timeout.Add (Timeout, DGate_Callbacks.Quit'Access,
0);
end if;

Gtk.Main.Main;
end if;

exception
when Invalid_Switch | Invalid_Parameter =>
Usage;
when others =>
Put_Line
("DGATE: Internal error. Please send a bug report with the
XML");
Put_Line ("file " & Filename.all & " and the GtkAda version to "
&
"gtkada@ada.eu.org");
end DGate;

Does anyone have an idea about this? I would like to clarify things
before I submit a bug report to gcc.gnu.
Thanks and best regards.
--
Adrian Hoe