RFC - Remove support for PCH post 4.8

[Andrew Pinski]

On Tue, Nov 27, 2012 at 1:22 PM, Diego Novillo <dnovillo@google.com> wrote:
> On Tue, Nov 27, 2012 at 2:48 PM, Paolo Carlini <paolo.carlini@oracle.com> wrote:
>
>> Assuming that the new implementation will be available in time for 4.9, my
>> primary concern is that in the meanwhile running the libstdc++ testsuite
>> will be quite noticeably slower. Do you have some numbers?
>
> No, but I can get them.  How do I disable PCH for libstdc++?

--disable-libstdcxx-pch

Thanks,
Andrew