compatibility.(2) - phpMan

CGI::Apache (3pm)    - Backward compatibility module for CGI.pm
CGI::Switch (3pm)    - Backward compatibility module for defunct CGI::Switch
mailq (1)            - Postfix to Sendmail compatibility interface
mailq.postfix (1)    - Postfix to Sendmail compatibility interface
Module::Build::Compat (3pm) - Compatibility with ExtUtils::MakeMaker
newaliases (1)       - Postfix to Sendmail compatibility interface
newaliases.postfix (1) - Postfix to Sendmail compatibility interface
ps2pdfwr (1)         - Convert PostScript to PDF without specifying Compatibi...
sendmail (8)         - Postfix to Sendmail compatibility interface
sendmail.postfix (1) - Postfix to Sendmail compatibility interface