A no strict 'refs', placed in as little a scope as possible, may help: 
use strict;
use warnings;

package ConfigPack;
our $config = {
    db     => 'postgres',
    prefix => 'PFX_',
};

package SillyPack;
foreach my $config qw(db prefix) {
    no strict 'refs';
    ${$config} = $ConfigPack::config->{$config};
}

package MyMainPack;
foreach my $c (keys %{ $ConfigPack::config }) {
    no strict 'refs';
    printf "%-8s => %s\n", $c, ${"SillyPack::$c"};
}

[download]
prints: 
db       => postgres
prefix   => PFX_

[download]

In reply to Re: dynamically creating variables by fenLisesi
in thread dynamically creating variables by hesco

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