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From: Adriaan van Os
Subject: New (gpc-20060325)
Date: 29 Mar 2006, 16:16:19

Frank Heckenbach wrote:

> Adriaan van Os wrote:
>
>> Some observations:
>>
>> 1. the problem does not occur when running gpc directly rather than
>> with make, even when passing the same compiler switches (this sounds
>> like random behaviour and makes me think there is an uninitialized
>> variable somewhere in the compiler source code)
>
> BTW, did you notice that aturbo3test.pas is tested via units.cmp
> which adds some options (in particular -DHAVE_CRT that triggers use
> of Turbo3)?
>
> If you haven't done yet, you might add an echo in units.cmp to find
> out with which options GPC is finally called. It's the line:
>
> $1 $2 $HAVE_UNITS
>
> (Or just add -DHAVE_CRT manually.)

OK, that explains it, the behaviour is not random.

> Another potential difference (though rather unlikely) would be
> environment variables.
>
> Unintialized compiler variables seem not so likely for this kind of
> problem, as Unix-like systems usually zero program's address space
> before the start anyway.

Anyway, fjf584a.pas and fjf584b.pas reproduce the problem in the 
testsuite (like PMemList does in units/system.pas).

Regards,

Adriaan van Os

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