This package installs a script called genrpm, which is used to generate a Redhat Package Manager (RPM) package from an installed pkgsrc package. It does this by generating a spec file, and using that to identify the components of the RPM and package them. If a pkgsrc tree is present on the system, a source RPM (or srpm) can also be generated. This will include the distfile, any pkgsrc patches, and the files used to accomplish the pkgsrc packaging.