use strict;
use warnings;
my $newvar=0;
if (defined $undefvar)
{
	$newvar = $undefvar;
}

##</code><code>##

Global symbol "$undefvar" requires explicit package name at C:\Users\liorlew\Desktop\perl\fixes\scripts\test.pl line 5.
Global symbol "$undefvar" requires explicit package name at C:\Users\liorlew\Desktop\perl\fixes\scripts\test.pl line 7.