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Re: libgd security update / i686 issues

From: Andreas Enge
Subject: Re: libgd security update / i686 issues
Date: Thu, 28 Jul 2016 10:34:20 +0200
User-agent: Mutt/1.6.1 (2016-04-27)

On Thu, Jul 28, 2016 at 03:23:37AM -0400, Leo Famulari wrote:
> Should these CFLAGS values be applied unconditionally, as in the
> attached patch, or should they be applied only while building on or for
> specific architectures? Or something else?

They only work on x86 processors, almost by definition: SSE stands for
a certain instruction set. So one would need to check whether the problem
occurs for other architectures. I would assume that it happens on all 32
bit architectures, in particular armhf. Their code is too fragile: One
should not rely on fine details of the processor architecture or instruction
set to hope for an expected rounding behaviour.


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