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From: Simon Wright <simon.j.wright@mac.com>
Newsgroups: comp.lang.ada
Subject: Re: Ada.Real_Time behavior with GNAT
Date: Sat, 29 Mar 2008 18:11:29 +0000
Organization: Pushface
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Works fine with GNAT GPL 2007 on Powerbook. It takes the same time
(more-or-less) whether the initial delay is present or not.

I think it takes marginally longer if the overflow error is present,
not sure why that would be.

The way GNAT approaches Ada.Real_Time differs from platform to
platform -- I'm pretty sure that VxWorks used to use the same
mechanism under the hood, which made for problematic behaviour if the
POSIX time was altered. You may have come across some interaction
between Ada.Real_Time and the elaboration of Ada.Calendar on Windows.