[pxc]

I think it may not be handled automatically.

Looks like you could use

  find /System/Index | RemoveBroken

and then you'd have to use SymlinkProgram to enable another provider of the shared libraries.

In a way this is inside-out from what Nix and Guix do, where their equivalent of the System Index (the Nix/Guix store) is the build target, and everything all symlinks point to that. That makes this kind of thing a little easier to deal with, at some other costs.