我最近更新到 GNAT 编译器的新版本。我正在尝试编译 GNADE 源 (http://gnade.sourceforge.net/)
是否需要设置某种标志或某种方式来调试它？
我看到了这个错误（当它在 GNATPro 6.22 下编译得很好时）：
gnatmake -g -O0 -fstack-check -pipe -gnatE -gnatU -gnatwl -gnatf -gnatE -gnat05 -p -PLibBuildGNADE.gpr
gcc -c -fPIC -g -O0 -fstack-check -pipe -gnatE -gnatU -gnatwl -gnatf -gnatE -gnat05 -I- -gnatA /home/user1/GNADE/src/gnu-db-sqlcli-generic_attr-boolean_attribute.adb
cannot generate code for file gnu-db-sqlcli-generic_attr-boolean_attribute.adb (missing subunits)
这是规范来源（gnu-db-sqlcli-generic_attr-boolean_attribute.ads）
-------------------------------------------------------------------------------
-- --
-- GNADE : GNu Ada Database Environment --
-- --
-- Author : Juergen Pfeifer <juergen.pfeifer@gmx.net>
--
-- Copyright (C) 2000-2001 Juergen Pfeifer
-- --
-- GNADE 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 2, 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 COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNADE is implemented to work with GNAT, the GNU Ada compiler. --
-- --
-------------------------------------------------------------------------------
generic
type Bool_Type is mod <>;
package GNU.DB.SQLCLI.Generic_Attr.Boolean_Attribute is
type Attribute_Value_Pair_Boolean_Scalar is new Attribute_Value_Pair
with
record
Value : Boolean;
end record;
function To_String (Object : Attribute_Value_Pair_Boolean_Scalar)
return String;
function GetAttr (Handle : Context;
Attribute : T;
Data : Aux;
MaxLength : SQLSMALLINT := 0;
ErrorCode : access SQLRETURN)
return Attribute_Value_Pair_Boolean_Scalar;
procedure SetAttr (Handle : in Context;
AV_Pair : in Attribute_Value_Pair_Boolean_Scalar;
Data : in Aux;
ErrorCode : out SQLRETURN);
private
Default_Len : constant Base := Base (Length_Indicator (Bool_Type'Size));
end GNU.DB.SQLCLI.Generic_Attr.Boolean_Attribute;
这是正文源（gnu-db-sqlcli-generic_attr-boolean_attribute.adb）
-------------------------------------------------------------------------------
-- --
-- GNADE : GNu Ada Database Environment --
-- --
-- Author : Juergen Pfeifer <juergen.pfeifer@gmx.net>
--
-- Copyright (C) 2000-2003 Juergen Pfeifer
-- --
-- GNADE 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 2, 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 COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNADE is implemented to work with GNAT, the GNU Ada compiler. --
-- --
-------------------------------------------------------------------------------
with Ada.Unchecked_Conversion;
with System.Address_To_Access_Conversions;
package body GNU.DB.SQLCLI.Generic_Attr.Boolean_Attribute is
function To_String (Object : Attribute_Value_Pair_Boolean_Scalar)
return String is
begin
return Boolean'Image (Object.Value);
end To_String;
function GetAttr (Handle : Context;
Attribute : T;
Data : Aux;
MaxLength : SQLSMALLINT := 0;
ErrorCode : access SQLRETURN)
return Attribute_Value_Pair_Boolean_Scalar
is
pragma Unreferenced (MaxLength);
package P is new System.Address_To_Access_Conversions (Bool_Type);
Value : aliased Bool_Type;
Len : Base := Default_Len;
Res : Boolean := False;
begin
Get (Handle,
Attribute,
To_SQLPOINTER (P.To_Address
(P.Object_Pointer'(Value'Access))),
Len,
Data,
ErrorCode);
if Value /= 0 then
Res := True;
end if;
return Attribute_Value_Pair_Boolean_Scalar'
(Attribute => Attribute,
Value => Res);
end GetAttr;
procedure SetAttr (Handle : in Context;
AV_Pair : in Attribute_Value_Pair_Boolean_Scalar;
Data : in Aux;
ErrorCode : out SQLRETURN)
is
function Cvt is new Ada.Unchecked_Conversion (SQLINTEGER, SQLPOINTER);
Len : constant Base := Default_Len;
Val : aliased Bool_Type := 0;
begin
if AV_Pair.Value then
Val := 1;
end if;
Set (Handle, AV_Pair.Attribute,
Cvt (SQLINTEGER (Val)),
Len,
Data,
ErrorCode);
end SetAttr;
end GNU.DB.SQLCLI.Generic_Attr.Boolean_Attribute;