Whether init sets the variable explicitely or not has no bearing on the answer. 
Foo.pm
------

use strict;
use warnings;

sub init {
   print("Setting \$Foo::bar to 42.\n");
   $Foo::bar = 42;
}

local $Foo::bar;
init();

1;

[download]
main.pl
-------

use strict;
use warnings;

use Foo ();

print("\$Foo::bar = $Foo::bar\n");

[download]
output
------
Setting $Foo::bar to 42.
Use of uninitialized value in concatenation (.) or string at main.pl l
+ine 7.
$Foo::bar =

[download]

In reply to Re^2: do, local and a qualified identifier? by ikegami
in thread do, local and a qualified identifier? by tomazos

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