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Re: Better communication about spectre/meltdown



On Sun, 2018-04-01 at 13:37 -0400, Roberto C. Sánchez wrote:
> On Sun, Apr 01, 2018 at 05:04:03PM +0200, Emilio Pozuelo Monfort wrote:
> > 
> > Your new GCC builds binaries such as libgcc1 and libstdc++6. That is going to
> > affect nearly all the archive at runtime, and I wonder if it's the right
> > approach. We introduced GCC 4.8 in wheezy, named gcc-mozilla (a bad name I know)
> > which didn't build these libraries, so it didn't affect the rest of the archive,
> > which was still building with GCC 4.6 or 4.7 (depending on the architecture).
> > 
> > One option here would be to use your gcc-4.9 with the gcc-mozilla packaging to
> > build everything in one binary, we'd only need to make sure that
> > firefox/thunderbird are still happy about it. Perhaps that's just complicating
> > things, so I'm not opposed to introducing gcc-4.9. Just wondering about the
> > consequences of the library updates.
> > 
> 
> That is interesting. I had not considered that particular aspect. It
> definitely sounds like caution is warranted here.

I would suggest looking at how non-default compiler versions are built
in other suites.

Ben.

-- 
Ben Hutchings
Make three consecutive correct guesses and you will be considered
an expert.

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