[vtk-developers] Proposal to bump CMake minimum version to 2.8.8

[Marcus D. Hanwell]

On Tue, Jul 30, 2013 at 3:06 PM, Marcus D. Hanwell
<marcus.hanwell at kitware.com> wrote:
> Hi,
>
> I propose that we bump our CMake minimum version to from 2.8.5 to
> 2.8.8 (going from a version released in July 2011 to one released in
> April 2012). My main motivation is so that we can add private
> dependencies to modules using the public/private interface library
> API, and make use of per-target include directories. There are several
> other minor feature improvements and additions, and with 6.0 just
> released we have approximately half a year until distributions will
> begin packaging this version.
>
> Private dependencies would let us clearly define what is an interface
> library, and what is limited to implementation and does not need to be
> added to link lines for dependent libraries (when building shared at
> least). This would also allow us to reduce the number of include
> directories to those in the current private set and the accumulated
> public set and should improve compilation speed.
>
> I think most of our dashboards already have 2.8.8 as other projects
> already require this or later, and it would allow us to simplify some
> of our CMake code that was condiitionally using some of these new
> features.
>
To add, the oldest we currently test/verify on the dashboards is
2.8.7, and several of those machines would need to be updated to at
least 2.8.8.

Marcus