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Date: Mon, 30 Jul 2012 16:02:10 +0200
From: Georg Bauhaus <rm.dash-bauhaus@futureapps.de>
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Subject: Re: how to tell gnatmake to send executables to a different directory
 when compiling multi source?
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Date: 2012-07-30T16:02:00+02:00
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On 30.07.12 15:03, Nasser M. Abbasi wrote:
> On 7/30/2012 7:25 AM, Georg Bauhaus wrote:
> 
> 
>>  . Changes in the C world
>> require programmers who know both C and the dependency graph of
>> the entire software.
> 
> hi;
> 
> I do not know if this is what you refer to or not, (...)
> http://make.paulandlesley.org/autodep.html
> 
> The point is, there are ways to build this dependency automatically
> in the C world.

The author seems a little cautious.

The point is that C does not define a library unit and how
it fits into the translation process, dependency-wise,
like Ada does.
There are economical consequences. C's, uh, permissive ways create
a plethora of mutually incompatible solutions to a problem that
has been formally defined, and solved, in Ada right from the start.

So, there exist cases where GCC, with the help of GNU Make and a host
of Unix programs, will let a diligent programmer produce
dependency files that tackle dependency in a roll-your-own
fashion. This setup is all outside of C, non-portable, "pragmatic",
and works, provided a sufficient amount of crowd work and crowd money
are spent on additions to C programming that tend become mutually
exclusive.