non-virtual-destructor warnings redux

[Paolo Carlini]

On 12/24/2011 12:03 PM, Paolo Carlini wrote:
> On 12/24/2011 11:59 AM, Jonathan Wakely wrote:
>> First of all I'd check http://gcc.gnu.org/gcc-4.7/changes.html#cxx 
>> and see that I already added it ;-) 
> Oh indeed, now I remember it ;)
which reminds me, that probably, since we are mentioning new warnings in 
changes.html, we could also add, for completeness, mine (judging by the 
number of PRs when it was still buggy, people are actually trying it ;)

Paolo.