[llvm-dev] [cfe-dev] Fwd: Raising CMake minimum version to 3.4.3

[Mike Edwards via llvm-dev]

Chris,
We have upgrade our bots (both internal and external) to CMake 3.5.2.  So
we are good to go.

-Mike

On Tue, May 3, 2016 at 12:29 PM, Chris Bieneman via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Renato,
>
> This approach sounds great to me.
>
> Chris M let me know separately that GreenDragon is on CMake 3.5.
>
> I belive Galina and Takumi maintain the largest chunk of remaining public
> bots. Do either of you have any thoughts on this?
>
> Thanks,
> -Chris
>
> > On May 3, 2016, at 11:19 AM, Renato Golin <renato.golin at linaro.org>
> wrote:
> >
> > On 3 May 2016 at 17:07, Chris Bieneman via cfe-dev
> > <cfe-dev at lists.llvm.org> wrote:
> >> Since there seems to be no strong objections remaining I’d like to
> propose the following timeline and process:
> >>
> >> 4/23 - I will send another follow-up email reminding everyone of this
> change and timeline
> >> 4/30 - I will send a final notice an hour before making the change to
> the LLVM, Clang, Compiler-RT, Clang-Tools-Extra, LibCXX, LibCXXABI and
> Test-Suite repos
> >>
> >> During the week of 4/30 I will revert as necessary if bots fail.
> Hopefully having the change permanently landed by the middle of the week.
> >>
> >> Does this sound agreeable to everyone?
> >
> > I'd like to propose a different approach. How about we do this the
> > other way around? Maybe we should try the "move first, fix later",
> > than the "break first, despair later".
> >
> > This week we (Linaro) have finished our buildbot migration, all of
> > them running on CMake 3.4.3. I'd like to see if other bot maintainers
> > could take the same effort before a certain date.
> >
> > So, we can still have the same dates (in May, of course), but with
> > different "labels":
> >
> > Soon, you send an announcement:
> > * Saying the consensus is to move to CMake 3.4.3 as well as a
> > compiled CMake for all platforms,
> > * That the technical reason is strong enough to do so, even if it
> > incurs more work to some people,
> > * That *ALL* bot owners should migrate as soon as possible (no later
> > than 30th).
> >
> > On 23rd, you send a reminder to the list informing all bot owners that
> > time is running out.
> > * If they can't do it, who could help them
> > * If they need push in the CMake community, or a new stable release,
> > it's better to have it now than then
> >
> > On 30th, you do the migration as you proposed.
> >
> > It's all the same, but with the difference that we're involving all
> > bot owners, and hopefully not having to revert too many times such a
> > troublesome change (CMake changes always mess up the bots anyway).
> >
> > Anyway, for ARM/AArch64, we're good to go.
> >
> > cheers,
> > --renato
>
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