libapache2-mod-perl2-dev 2.0.9-4ubuntu1 (amd64 binary) in ubuntu xenial

 mod_perl allows the use of Perl for just about anything
 Apache-related, including <Perl> sections in the config
 files and the famous Apache::Registry module for caching
 compiled scripts.
 .
 This package contains the header files required for building
 C-based modules integrating with mod_perl.