[Samba] Where are Heimdal Kerberos library and headers located?

[Mark Foley]

I'm trying to compile sasl from source on my Samba4 AD/DC. It needs the location of the
kerberos library and headers. Where are these located, or at least, what is the library name? I
can't seem to locate them via find using any of the search terms I can think of.

I'm running Samba 4.4.16

Thanks, --Mark