Debian / Ubuntu:
- apt-get install apache2 bison flex libapache2-mod-perl2 libsoap-lite-perl libsox-fmt-all libtext-csv-perl sox
- cpan Business::PayPal::IPN
- cpan Pod::WSDL
Others:
- yum -y install expat-devel mod_perl poppler-utils sox
- cpan Business::PayPal::IPN
- cpan Pod::WSDL
- cpan SOAP::Lite