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Re: enabling/disabling AltiVec in Firefox and derived browsers (ArcticFox)

On Tuesday, March 2, 2021, Riccardo Mottola <riccardo.mottola@libero.it> wrote:

> actually the original point is even for PPC32, note just PPC64. The
> configure check added by Adrian in Firefox checks if the compiler
> accepts -maltivec and just enables it in the build.
> However, this assumption is not correct and causes issues as explained
> in my previous mail.

ouch.  seems like an autoconf test is needed, at least.  and an upstream bugreport to gcc.

just to confirm: that's definitely "setting machine to capabilities that the machine doesn't have, then requesting that feature and gcc 10 says 'ok'" yes?

i do not know the exact machine, let us assume it is -mg3.

the options being passed are "gcc -mg3 -maltivec" and this should definitely cause gcc to raise an error, is that correct?


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