Building the Perl hosting plugin for the Virtuoso Server Prerequisites The Perl hosting plugin requires Perl 5.8 or later. Perl must have been compiled with -Dusemultiplicity. You can use the following command to confirm this -- perl -V:usemultiplicity Building the plugin To build the Perl plugin along with the Virtuoso server binary, add the following when you configure the Virtuoso build -- --enable-perl CategoryVirtuoso CategoryOpenSource