[cfe-dev] Build-bot host compiler upgrades and C++11!

[Chandler Carruth]

On Mon, Jan 13, 2014 at 9:00 AM, Nico Weber <thakis at chromium.org> wrote:

> On Sun, Jan 12, 2014 at 10:02 PM, Chandler Carruth <chandlerc at gmail.com>wrote:
>
>>
>> On Sun, Jan 12, 2014 at 9:42 PM, Nico Weber <thakis at chromium.org> wrote:
>>
>>> On Tue, Jan 7, 2014 at 5:09 PM, Nico Weber <thakis at chromium.org> wrote:
>>>
>>>> On Tue, Jan 7, 2014 at 1:44 AM, Chandler Carruth <chandlerc at gmail.com>wrote:
>>>>
>>>>> Greetings, I'm trying CC-ing all the folks I could think of that are
>>>>> likely running bots for Clang. If I've missed any, sorry, please add them.
>>>>>
>>>>> As you may have heard on various lists, it's time to switch Clang (and
>>>>> LLVM) to use C++11. The first step is establishing a new baseline of
>>>>> compiler versions that are supported[1]:
>>>>>
>>>>> MSVC 2012
>>>>> GCC 4.7
>>>>>
>>>>
>>>> Does this mean clang with require libstdc++4.7 too? Or can gcc 4.7
>>>> target libstdc++ 4.6 somehow?
>>>>
>>>
>>> ^ ping
>>>
>>
>> Yes. Part of the reason to pick GCC 4.7 is because its standard C++
>> library has a reasonably well tested and correct implementation of a large
>> amount of the C++11 standard library. The standard library improvements wil
>> lbe among the most dramatic as those have been widely implemented for
>> longer in MSVC.
>>
>
> So clang will stop running on regular Ubuntu Precise?
>

Yes. Note that the next LTS is scheduled to be out before the 3.5 release,
so it only people working against trunk and hosted on LTS that will have a
window where they need to install a more recent host compiler.
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