I'm not good at English, but I believe that when you look at codes you will understand what I meant
package AAA;
use 5.20.1;
use lib ('.');
use BBB;
use parent('Exporter');
our @EXPORT=('$b','$msg');
our $bbb=BBB->new();
return 1;
package BBB;
use 5.20.1;
use lib '.';
use AAA;
sub new{
my $class=shift;
my $self=bless {},$class;
return $self;
}
sub hello{
my $self=shift;
say 'hello';
}
sub hello2{
my $self=shift;
$b->hello();
}
return 1;
package main;
use 5.20.1;
use lib ('.');
use AAA;
$bbb->hello2();
$ perl test.pl
Global symbol "$bbb" requires explicit package name at test.pl line 5.
Execution of test.pl aborted due to compilation errors.
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