[patch] libstdc++/66017 Avoid bad casts and fix alignment of _Rb_tree_node<long long>::_M_storage

[François Dumont]

On 26/05/2015 21:27, Marc Glisse wrote:
> On Tue, 26 May 2015, Jonathan Wakely wrote:
>
>> It's a shame to waste some space in the other types using
>> __aligned_buffer, and to have to maintain both __aligned_buffer and
>> __aligned_buffer_mem, but I think this is safer.
>
> Is there an official list somewhere of bad designs that need to be 
> changed as soon as people can be convinced to break the ABI? I am 
> still hoping that will eventually happen...
>
     We had a svn branch libstdcxx_so_7-2-branch for this purpose. It 
didn't had a lot of success but that is the cleanest way I can think of 
to keep track of all ABI breaking changes.

François