[PD-dev] sys_externlist declared in two places
Hans-Christoph Steiner
hans at eds.org
Tue Dec 19 00:02:25 CET 2006
On Dec 18, 2006, at 3:42 PM, Mathieu Bouchard wrote:
> On Mon, 18 Dec 2006, Hans-Christoph Steiner wrote:
>> On Dec 18, 2006, at 8:09 AM, Mathieu Bouchard wrote:
>>> It's not C that allows it, it's the linker and the concept of
>>> separate compilation. It's a feature that comes from assembly
>>> language. I can't see that feature really going away with any new
>>> standard of the C language because it's just not something
>>> specified by that spec.
>> I think that -fstrict-aliasing disallows that. Or at least
>> something that is enabled when turning on all the optimization
>> options.
>
> I think that it doesn't disallow it, and it's because I've just
> tried it, and I don't even get a warning, with every possible
> combination of -fstrict-aliasing -Wall at every compilation step.
FWIW, using these flags, the linker complains:
-ftree-vectorize -ftree-vectorizer-verbose=3 -fast -fPIC -mcpu=7450 -
mtune=7450
.hc
>
> _ _ __ ___ _____ ________ _____________ _____________________ ...
> | Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
> | Freelance Digital Arts Engineer, Montréal QC Canada
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