Global symbol "$dir" requires explicit package name at test.pl line 4.
Global symbol "$dir" requires explicit package name at test.pl line 5.
Global symbol "$dir" requires explicit package name at test.pl line 5.
Global symbol "$file" requires explicit package name at test.pl line 6.
Global symbol "$file" requires explicit package name at test.pl line 7.
Execution of test.pl aborted due to compilation errors.