$ perl -c pm_example.pl
Global symbol "$x" requires explicit package name at pm_example.pl line 10.
Global symbol "@list" requires explicit package name at pm_example.pl line 10.
Global symbol "$x" requires explicit package name at pm_example.pl line 14.
Global symbol "@FILES" requires explicit package name at pm_example.pl line 17.
Global symbol "@FILES" requires explicit package name at pm_example.pl line 18.
Global symbol "$new" requires explicit package name at pm_example.pl line 19.
pm_example.pl had compilation errors.