in reply to Re^2: PPM has module but BugZilla says it's missing
in thread PPM has module but BugZilla says it's missing
Duh - sorry for giving you dud code, but you fixed the problem with my code.
Now, you should look at checksetup.pl respectively Bugzilla/Install/Requirements.pm and see what contortions it involves to (badly) check whether a module is available or not. Ideally, it would simply require the modules in question, but then it would simply find them.