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From: Martin Dowie <martin.dowie@btopenworld.com>
Newsgroups: comp.lang.ada
Subject: Re: How to detect OS type and version?
Date: Sat, 15 Oct 2005 14:12:42 +0000 (UTC)
Organization: BT Openworld
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Date: 2005-10-15T14:12:42+00:00
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Larry Kilgallen wrote:
> In article <Td-dnezkj9VKoM3eRVn-uA@megapath.net>, "Randy Brukardt" <randy@rrsoftware.com> writes:
> 
> 
>>Ada 83 compounded the problem by implying that users could simply use a
>>pragma System_Name to change the target.
> 
> 
> If it describes the target, certainly that must be under the
> control of the user, since compilation might be in a different
> environment from execution.

If you are cross compiling then the version of package System for the 
target would have a System.Name to reflect the target.

I'm not sure why this is a problem for any 'closed' compiler, as the 
vendor must know the exact target (OS + processor + switches).

I can understand there is a problem for 'open' compilers, as anyone can 
build for any OS+processor+switches and make the system name anything - 
even erroneous!

Cheers

-- Martin