Uh, well, right. I have never explicitly used ExtUtils::Installed myself, I use CPAN.pm for managing libraries, but who knows, maybe CPAN relies somewhere on this module.

I have just tried this:

    $ perl -d -MCPAN -e shell
    ...
    DB<1> for (keys %INC) {print "$INC{$_}\n" if /ExtUtils/}
    /usr/lib/perl5/5.6.1/ExtUtils/MakeMaker.pm
    /usr/lib/perl5/5.6.1/ExtUtils/MM_Unix.pm
    DB<2>
[download]

...so maybe it would be OK for me. But in the end it's probably a matter of try and see if anything breaks.

Thanks for your time anyway, PodMaster!