From Fedora Project Wiki
Perl core is not only an interpreter, but also a set of core modules - CGI, Module::Build, CPAN, etc. Some of these modules exist in core and in their own package as a convenience for the maintainer - we refer to these modules as "dual-life" modules.
You probably have installed Perl. If not, it's not a good idea to test it ;-)
How to test
- Do you have perl-core?
rpm -q perl-coreGreat. This will require core modules, so they are installed, too (e.g. perl-CGI, perl-Module-Build)
- Will perl or 'perl(Some::Module)' be installed in yum update? Did
yum updatepass? Then dual-life packages don't conflict with core package. No missing dependencies or NVR problems.
- Do you have only perl because you like minimal installation? Great, than you can check if update doesn't pull in any other un-needed dependencies.
- Clean yum update without warnings, no NVR problems, no new useless dependencies in case of minimal Perl installation.