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References: <20111008113307.GA13693@gentoo.org> <m3d3e7drbo.fsf@jhcloos.com>
<CAEdQ38FXZH6GgU0o2HxfsUNp3s4PaJJQNM8M6a-P5D6HfP8P8A@mail.gmail.com> <m3ipnyazro.fsf@jhcloos.com>
From: Matt Turner <mattst88@gentoo.org>
Date: Sun, 9 Oct 2011 17:10:08 +0000
Message-ID: <CAEdQ38H7rmB3hgFZzWZ4Txb67Z+Ta41azYbC=2HDYEsNFKcc=g@mail.gmail.com>
Subject: Re: [gentoo-dev] GCC upgrades, FUD and gentoo documentation
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On Sun, Oct 9, 2011 at 4:35 PM, James Cloos <cloos@jhcloos.com> wrote:
>>>>>> "MT" =3D=3D Matt Turner <mattst88@gentoo.org> writes:
>
> MT> Is that a problem with the ABI, or just that gcc-4.6 is more strict?
> MT> I think it's the latter.
>
> The failure occurs at the linking stage, not the compiling stage.
>
> Ie, ln(1) cannot find some of the symbols it needs if the .so was
> compiled with 4.5 and the .o files with 4.6.
>
> Which looks like an ABI issue, yes?
>
> Again, though, only for some libs. =A0And I do not remember which.
Right, if it fails at link time, it's possibly an ABI incompatibility.
I just haven't ever experienced this myself.
Matt