[cairo] cairo packaging and Makefile.am.features

[Lawrence D'Oliveiro]

On Mon, 17 Apr 2017 00:52:40 +0200, Enrico Weigelt, metux IT consult
wrote:

> This would also require maintenance branches for all the various
> versions that distros out there are running.

This is why we have branches and tags in Git.

    ldo at theon:blender> git branch -r
      origin/blender-v2.71
      origin/blender-v2.71-rc2
      origin/blender-v2.72-release
      origin/blender-v2.73-release
      origin/blender-v2.74-release
      origin/blender-v2.75-release
      origin/blender-v2.76-release
      origin/blender-v2.77-release
      origin/blender-v2.78-release
      origin/blender-v2.78b-release
      origin/blender-v2.78c-release
      origin/blender2.4
      origin/blender2.5
      origin/blender2.8
      origin/bmesh
      origin/bmesh-boolean-experiment
      origin/clay-engine
      origin/cloth
      origin/cloth-improvements
      origin/collada-2
      origin/compositor-2016
      origin/custom-manipulators
      origin/custom-normals-bmesh
      origin/cycles
      origin/cycles-ptex-06
      origin/cycles-ptex-08
      origin/cycles-ptex-12
      origin/cycles-ptex-19
      origin/cycles-ptex-24
      origin/cycles-ptex-49
      origin/cycles-tiles-rework
      origin/cycles_bvh
      (etc etc etc)