SITK : can it be ignored while building?

I understood from comments in the forum, perhaps wrongly, that SITK can be excluded while building Slicer.

How far is this true ? If so, how would it impact Slicer’s usability ? What would be missing?

It’s just that it’s a long CPU intensive build.

Using Linux.

Yes, you can safely turn off Slicer_USE_SimpleITK when building to save time. A few things won’t be available in the build, like SimpleFilters and WatershedFromMarkerEffect, but most things will work.