On Sat, Oct 8, 2011 at 6:57 PM, James Cloos <[email protected]> wrote: >>>>>> "SV" == Sven Vermeulen <[email protected]> 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
