You can use the core module Module::Load::Conditional in conjunction with the if pragma:

#! perl
use strict;
use warnings;
use Module::Load::Conditional qw( check_install );

my $something = "This is really something!\n";
my $superduper;
BEGIN { $superduper = check_install(module => 'SuperDuperPrinter'); }

if ($superduper)
{
    use if $superduper, SuperDuperPrinter => qw( Print );

    SuperDuperPrinter::Print($something); 
} 
else
{
    print $something; 
}
[download]

Update: The documentation is unclear (to me, anyway), and I didn’t test properly. On further investigation, it appears that the if pragma’s condition is evaluated (silently!) at compile time, not at run time as I assumed. So I have changed:

my $superduper = check_install(module => 'SuperDuperPrinter');
[download]

to:

my $superduper;
BEGIN { $superduper = check_install(module => 'SuperDuperPrinter'); }
[download]

which allows the subsequent use if construct to work correctly.

Hope that helps,

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