New comment by Piraty on void-packages repository

https://github.com/void-linux/void-packages/pull/14178#issuecomment-529443510

Comment:
You could also do two builds in the template (one for each variant toolkit) and split results in corespoinding subpackages, which is not a nice thing either. Also dependency-overwriting if the shared package is possible, but even worse.

I'd say: only support one toolkit and go for a default build option. If demand should arise to provide both versions at the same time, we can still warmup this discussion.