[llvm-dev] Using C++14 code in LLVM

[Reid Kleckner via llvm-dev]

On Tue, Oct 4, 2016 at 11:58 AM, Mehdi Amini <mehdi.amini at apple.com> wrote:

>
> On Oct 4, 2016, at 8:40 AM, Reid Kleckner via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
> On Tue, Oct 4, 2016 at 8:29 AM, Zachary Turner <zturner at google.com> wrote:
>>
>> I ask because many of these LTS distros are notoriously slow at updating
>> their packages. While some people may think C++14 doesn't provide enough
>> bang for the buck to justify bumping to GCC 4.9, C++17 definitely does. But
>> at that point we're going to be talking about GCC 6.1 or 6.2, which is
>> going to be significantly harder unless we want to wait 5-7 years, and I
>> suspect people won't.
>>
>
> If by "notoriously slow" you mean they don't bump their toolchain versions
> at all, then yeah. We just wait until the LTS release is at end-of-life
> before dropping it.
>
>
> That’s the first time I read about this policy: we support every linux LTS
> distribution till their end-of-life? Only Ubuntu? Do you have a pointer
> where it is documented / discussed?
> (Note that Ubuntu LTS is 5 years AFAIK.)
>

Sorry, I didn't mean to refer to the LTS support lifetime. I just meant we
support the last LTS until we can reasonably expect users to have upgraded
to the new one. If there's an LTS release every two years, then we want to
keep supporting them for at least three years to give people a year to
upgrade.
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