[Exim] Exim 4.32 & FreeBSD 4.10 Release

I can't seem to figure out where the "log_selector" global option is set -
which file? and does it need to be set _before_ the binary is created?
(i.e. before you run "make install") ?

I searched the faq, and searched the files within Exim distro, but couldn't
find that option listed anywhere.

Thanks,

Lonnie