Prerequisites Before building mod_perl 2.0 you need to have its prerequisites installed. If you don't have them, download and install them first, using the information in the following sections. Otherwise proceed directly to the mod_perl building instructions. The mod_perl 2.0 prerequisites are: Apache Apache 2.0 is required. mod_perl 2.0 does not work with Apache 1.3. Dynamic (DSO) mod_perl build