suppress expansion of unused raft spectral templates

[ChuckHastings]

Closes #2678

raft updated some k-means logic and dramatically increased the compile time of our spectral clustering implementation. This PR adds an include that will suppress the expansion of templates that we are not using.

[ChuckHastings]

rerun tests

[ChuckHastings]

rerun tests

[cjnolet]

@vyasr do you have any ideas as to why this would still be failing when libraft-distance is installed as a dependency of cugraph/pylibcugraph? I'm scratching my head a little bit.

[vyasr]

@cjnolet @ChuckHastings If you're pulling libraft-distances then I believe the target that you should be linking to is raft::raft_distance_lib instance of raft::distance.

[ChuckHastings]

@cjnolet @ChuckHastings If you're pulling libraft-distances then I believe the target that you should be linking to is raft::raft_distance_lib instance of raft::distance.

Trying that now, thanks!

[vyasr]

Hmm apparently not the issue. Can you reproduce this locally? I can give that a shot if you haven't been able to.

[ChuckHastings]

Corey fixed this in #2739 , we'll merge that PR instead.

[vyasr]

Ahhh I think I see the issue.