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On Saturday 08 October 2011 18:57:23 James 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*.
i think you're hitting a bug that has nothing to do with the ABI
compatibility. i.e. Bug 297685.
-mike
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