Re: Random crash with GCC 4.7.1

[Jonathan Wakely <jwakely dot gcc at gmail dot com>]

On 10 July 2012 20:31, Paul Smith wrote:
> On Mon, 2012-07-09 at 19:44 +0100, Jonathan Wakely wrote:
>> >> For GCC 4.7.0 and 4.7.1 there is an incompatibility between c++11 and
>> >> c++98 code due to the size of std::list being different in C++11 mode.
>> >>
>> > Will this bug be fixed? Is there bug report?
>>
>> It wasn't a bug, it was done intentionally, but the change has been
>> reverted so the incompatibility will be gone in GCC 4.7.2
>
> Hm, so if I compile code with C++11 enabled and GCC 4.7.0/4.7.1, and I
> link with a shared lib compiled with C++98 OR with some other version of
> GCC, can I expect to see issues with std::list incompatibility?

Yes, among other issues, see
http://gcc.gnu.org/wiki/Cxx11AbiCompatibility and
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53657

> Or can I expect to see issues combining GCC 4.7.0/4.7.1 code with 4.7.2
> and later?

Yes, if the 4.7.[01] compiled code uses std::list in C++11 mode.

> If so is there a patch I can apply to my GCC 4.7.1 to proactively fix
> this up, since 4.7.2 is still a few months away from release?

I'm sure you can find it for yourself in subversion.