[LLVMdev] [RFC] Raise minimum required CMake version to 3.0

Chris Bieneman beanz at apple.com
Tue Mar 10 14:59:34 PDT 2015

> On Mar 10, 2015, at 2:53 PM, Renato Golin <renato.golin at linaro.org> wrote:
> On 10 March 2015 at 21:30, Chandler Carruth <chandlerc at google.com> wrote:
>> In the absence of specific features which would make our use of CMake
>> significantly better, I'm inclined to stick roughly to the version of CMake
>> in the latest LTS release of ubuntu (I don't know the stable releases of
>> debian well enough to cite it, but likely the same applies).
> seems to be the common minimum version.

Not if you include Debian stable, which is 2.8.9.

> Another thing to consider is the impact of CMake changes on buildbots.
> It may not be possible to migrate all buildbots to newer versions, for
> instance, Ubuntu is still stuck with I think, but Debian
> Jesse is already on 3.0.2 and Arch Linux on 3.1.3.
> The "advanced" features I want from CMake are:
> * use pool = console (available in 3.0) to get rid of our ugly hack
> due to short timeouts
> * specify -DCMAKE_NINJA_LINK_POOL=2 so we can build on
> multi-core/low-mem environments (or distcc).
> I don't think the second is even on the drawing board, though I
> remember having suggested it a few years back.
> None of them would make the life of a new developer easier, though... :)

Unless we have new developers who enjoy cross compilation.

> cheers,
> --renato

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