perl -I . foo.pl
Prototype mismatch: sub Readonly::Scalar ($;$) vs ($$) at /usr/share/perl5/Readonly.pm line 257.
Prototype mismatch: sub Readonly::Scalar ($;$) vs ($$) at /usr/share/perl5/Readonly.pm line 343.
Prototype mismatch: sub Readonly::Readonly (\[%@$]$) vs (\[$@%]@) at (eval 7) line 42.Management is only worried about my (our) code...not other CPAN modules that use Readonly