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From: Martin <martin.dowie@btopenworld.com>
Newsgroups: comp.lang.ada
Subject: Re: GNAT on WinXP: System.OS_Lib.Spawn raises Program_Error
Date: Sat, 2 May 2009 08:59:57 -0700 (PDT)
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Date: 2009-05-02T08:59:57-07:00
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On May 2, 5:16=A0am, a...@anon.org (anon) wrote:
> First, in GNAT GPL 2008, GNAT.OS_LIB renames System.OS_LIB, so using
> GNAT.OS_LIB would be a waste of time.

Not entirely a waste, as using "GNAT.*" makes it explicit to anyone
reading the code that this is a non-standard package being used. Using
'System.OS_Lib' would give the erroneous impression to the casual
reader that only standard language defined packages are being used and
that there perhaps would be =A30.00 cost to compile it up using a
different compiler.

Using non-standard extensions to standard units is generally a
_bad_idea_ but if it is unavoidable then it should be hidden in an
abstration layer that you have control over.

Cheers
-- Martin