Hi, Using Makefile.PL, I often feel a need to enforce the upgrade for an optional module, but only when that module is already installed.
I have many modules which more or less depend on each other. Sometimes, my modules get interface improvements which are usable by other optionally installed related modules. I would like to be able to trigger an upgrade of these optional modules, only when they are installed. So, besides enforcing an upgrade to a minimal version PREREQ_PM => { XML::Compile::Tester => '0.05'} an upgrade-if-installed to a minimal version UPGRADE_PM => { XML::Compile::Cache => '0.90' } Or is there an other nice generic way to achieve this? -- Regards, MarkOv ------------------------------------------------------------------------ Mark Overmeer MSc MARKOV Solutions m...@overmeer.net soluti...@overmeer.net http://Mark.Overmeer.net http://solutions.overmeer.net