[LLVMdev] [cfe-dev] RFC: A proposal to move toward using C++11 features in LLVM & Clang / bounding support for old host compilers

[Chandler Carruth]

On Mon, Nov 11, 2013 at 11:08 AM, <dag at cray.com> wrote:

>
> > I'm guessing people reading this thread have already accepted that we're
> > moving, so they should have be doing all the work to move since last
> > week, which gives us a nice round December frame for new stuff.
> >
> > David, is that a comfortable window?
>
> No it is not because we don't yet know which specific versions of
> toolchains we're going to use.  In our case we need to know the exact
> point release of gcc recommended for LLVM.  4.7.x is too vague.  We want
> to make sure we're using the same compiler as the rest of the LLVM
> community.
>

I don't know what you mean here. I've even clarified why the 'x' is still
there.

The entire community doesn't use a single compiler version and it never
has. Pick the version of GCC in the 4.7 release series which is convenient
for you to Q/A and do the Q/A. We're giving you more choices not fewer.


>
> The clock has wait to start once we know specific versions.


I'm sorry, but I don't think that there is a clock here or that you control
it. The reason why having a specific clock for trunk doesn't make sense has
been discussed many times (mostly, I consider Richard's excellent emails on
this subject to be the correct analysis of the situation).
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