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To: gentoo-dev@g.o
From: Matt Turner <mattst88@g.o>
Subject: Re: GCC upgrades, FUD and gentoo documentation
Date: Sat, 8 Oct 2011 20:19:45 -0400
On Sat, Oct 8, 2011 at 6:57 PM, James Cloos <cloos@...> wrote:
>>>>>> "SV" == Sven Vermeulen <swift@g.o> writes:
>
> SV> - Since 3.4.0/4.1.0, the C++ ABI is forward-compatible, so rebuilds
> SV>   from that version onwards should not be needed
>
> That is not generally true.
>
> I use gcc-4.5 as my system gcc, but mostly use 4.6 when building things
> outside of portage.  I still run into compilation errors with C++ which
> go away if I compile said code with 4.5.
>
> GCC’s C++ abi is only *mostly* forwards compatible, not *entirely*.

Is that a problem with the ABI, or just that gcc-4.6 is more strict? I
think it's the latter.

Matt


Replies:
Re: GCC upgrades, FUD and gentoo documentation
-- James Cloos
References:
GCC upgrades, FUD and gentoo documentation
-- Sven Vermeulen
Re: GCC upgrades, FUD and gentoo documentation
-- James Cloos
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