[Samba] How to determine Samba Installation directory

[Mark Foley]

I'm building Samba from a scratch download from samba.org.  One of the ./configure
options is --prefix, which directs where to install the files. 

The "default" is /usr/local/samba, but from experience I know my distro does not
put the files there. There is nothing in either my /usr/lib/samba or
/usr/local/samba.

How can I determine where my current --prefix directory is?

THX --Mark