[issue40878] Use c99 on the aixtools bot

[Michael Felt]

Michael Felt <aixtools at felt.demon.nl> added the comment:

I’ll switch back to xlc ( even try without the _r ) and look for the macro asap (vacation and occasional travel). 

Sent from my iPhone

> On 15 Jun 2020, at 21:20, Stefan Krah <report at bugs.python.org> wrote:
> 
> 
> Stefan Krah <stefan at bytereef.org> added the comment:
> 
> Thanks!
> 
> Ha, it turns out that c99_r has excellent C99 compliance. :)
> 
>> Variable arguments macro RAISE_SYNTAX_ERROR was invoked with an empty variable argument list.
> 
> Totally legit, we should use xlc (at least the front end) more often.
> 
> 
> So maybe our code base is not C99 compliant enough and we have to switch back for sanity.
> 
> 
> 
> For the _decimal problem at hand, if you give me the compiler identification macro (__xlc__ or something?) I can try the same as for MSVC and use the explicit EXTINLINE definition.
> 
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> _______________________________________
> Python tracker <report at bugs.python.org>
> <https://bugs.python.org/issue40878>
> _______________________________________
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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40878>
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