sri@odyssey:~$ cat test.pl
use strict;
use vars '$rav';
$rav = 10;
Test: {
    our $var = 20;
    print "var: $var\n";
}
print "rav: $rav, var: $var\n";
sri@odyssey:~$ perl test.pl
Variable "$var" is not imported at test.pl line 8.
Global symbol "$var" requires explicit package name at test.pl line 8.
Execution of test.pl aborted due to compilation errors.