-- /home/httpd-test/
---- build/
---- port8080/
---- port8090/

##</code><code>##

perl Makefile.PL  \ 
    PREFIX=/home/httpd-test/port8091/www/ \ 
    LIB=plugins

##</code><code>##

bash-2.05a$ sudo make install 
Installing plugins/plugins/ConferenceNameBuilder.pm
Writing plugins/i386-linux/auto/ConferenceNameBuilder/.packlist
Appending installation info to plugins/i386-linux/perllocal.pod