Checking for Perl Modules

A while ago I lamented that finding out if your local Perl install has a specific module installed is tricky. Turns out that courtesy of the Perldoc page on threads that it's even simpler:

my $has_module = eval 'use My::Module; 1';
if ($has_module) {
  use_module();
}
else {
  dont_use_module();
}

P.S., Hawaii is very nice.