RFA (libstdc++): PATCH to implement C++17 over-aligned new

[Jonathan Wakely]

On 09/09/16 17:20 -0400, Jason Merrill wrote:
>OK, this is what I'm checking in; could someone test it on MinGW?

MSDN suggests we need <malloc.h> for _aligned_malloc, but I'm not
sure. Last time I tried to build and test MinGW it made me cry, and I
no longer have any access to Windows machines anyway.

But rather than trying to fix it blind let's wait for feedback and see
if it works for MinGW or not.