APACHE_ROOT

[William P. McGonigle]

Can someone explain what APACHE_ROOT is meant to be?  I'm assuming it's somehow
different thatn APACHE_SRC (which I'm defining).
  
I found this in Makefile.PL:

        ($APACHE_ROOT = $APACHE_SRC) =~ s,/src/?$,,;
        last if $NO_HTTPD; # or $USE_APACI;

But although I code alot of perl, I'm abyssmal at trying to figure out these
constructs, and my books are at home...

Anyway, it's getting set to blank when I run Makefile.PL.

Thanks,
-Bill