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From: Stefan Bellon <sbellon@sbellon.de>
Newsgroups: comp.lang.ada
Subject: Re: Pragma for conditional compilation? (Ada 2005 vs. 95)
Date: Fri, 28 Sep 2007 22:02:39 +0200
Organization: Comp.Center (RUS), U of Stuttgart, FRG
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Date: 2007-09-28T22:02:39+02:00
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On Fri, 28 Sep, Pascal Obry wrote:

>    case OS is
>       when "Windows_NT" =>
>          for Implementation ("OS_Services")
>               use "os_services__win32.adb";
>       when "UNIX" =>
>          for Implementation ("OS_Services")
>               use "os_services__linux.adb";
>    end case;

Interesting. What is the difference to the following (what we have been
using for some time)?

   package Naming is
      case OS is
         when "UNIX" =>
            for Body ("Plugins.Internal_Load")
              use "plugins-internal_load-unix.adb";
         when "Windows_NT" =>
            for Body ("Plugins.Internal_Load")
              use "plugins-internal_load-windows.adb";
      end case;
   end Naming;

The two Internal_Load being "separate" procedures for package body
Plugins.

Are the pros and cons versus the Implementation attribute above (which
I didn't know about until now)?

-- 
Stefan Bellon