How do I show linking against purecap?

Hopefully a very newbie question.  I have Morello Linux up and running and I can compile software on it.  However, how do I know whether I'm building against purecap libraries vs. plain vanilla Debian libraries?  I've tried readelf, objdump, and ldd - there doesn't seem to be any special information in there.  Does Morello Linux implement purecap universally everywhere by default?  Thanks!