The team behind ksonnet was aquired by VMware, and they decided to end
work on ksonnet:
From https://blogs.vmware.com/cloudnative/2019/02/05/welcoming-heptio-open-source-projects-to-vmware:
> Prior to the acquisition, Heptio had been shifting focus and resources
> away from ksonnet; with the acquisition, we felt it was the right time
> to rethink our investment in ksonnet. As a result, work on ksonnet will
> end and the GitHub repositories will be archived. It’s extremely
> difficult to step back from a project we have worked so hard on, but
> we’re excited about our new ideas and vision for changing how developers
> experience the Kubernetes and cloud native ecosystems.
The team behind ksonnet was aquired by VMware, and they decided to end
work on ksonnet:
From https://blogs.vmware.com/cloudnative/2019/02/05/welcoming-heptio-open-source-projects-to-vmware:
> Prior to the acquisition, Heptio had been shifting focus and resources
> away from ksonnet; with the acquisition, we felt it was the right time
> to rethink our investment in ksonnet. As a result, work on ksonnet will
> end and the GitHub repositories will be archived. It’s extremely
> difficult to step back from a project we have worked so hard on, but
> we’re excited about our new ideas and vision for changing how developers
> experience the Kubernetes and cloud native ecosystems.
This reverts commit 08ea7c7ee2.
This was a part of #61823.
Firstly, that commit removed those attributes without removing the files
they refer to, which is strange.
Secondly, I have a very old but GPGPU-capabale AMD card which doesn't work
with newer OpenCL infrastructure and hence needs these packages to do GPGPU.
During the 1.14 -> 1.15 upgrade, lots of stuff stopped working because
gstreamer changed what features are enabled by default and which ones are
automatically turned on/off via pkgconfig dependency detection.
This resulted in the `gstreamer` ("core" attribute in nixpkgs) package
to have only 15 of its previous 163 build targets enabled, and downstream
packages breaking correspondingly.
To ease maintainability and to ensure users will find the expected features
available (and when not, will see in the nix file why not), we now pass
the `-Dauto_features=enabled` Meson build flag to all gstreamer builds,
which sets all `auto` dependencies to `enabled`, and we explicitly disable
those that we can't build.
This means in particular that `gst-plugins-bad` now has vastly more integrations
(namely all for which nixpkgs has libraries available).
