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From: Lutz Donnerhacke <lutz@iks-jena.de>
Newsgroups: comp.lang.ada
Subject: Re: Crosspost: Help wanted from comp.compilers
Date: Thu, 17 Jul 2003 06:46:49 +0000 (UTC)
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* Hyman Rosen wrote:
> John R. Strohm wrote:
>> The same thing can occur in Ada.  An overt change in one specification may
>> propagate through a chain of apparently-unchanged descendants, producing
>> hidden but very real semantic changes in each of them, and eventually
>> producing a very visible change in the final descendant.
> 
> You're not listening. The complaint was that some Ada systems recompiled
> dependents when a file was compiled, even if the source code had not
> changed. You keep telling me that changes can ncessitate recompilation.
> I know that. Ada knows that. Ada specifies such dependencies on changes
> very carefully.

Yep. I prefer checksums over files to determine recompiling issues.
Especially using the Spark tools urged this method to come to an end before
the day is over.