I like Corion's approach, in fact I use a similar approach as well. I think this approach is cleaner than mixing codes for different platforms into a single module.
My similar approach:
package My::Functions;
...
my $OS_TYPE = ...;
eval "require My::Functions::$OS_TYPE" or die "Can not load module";
..
Having said that, simon's approach from
File::Spec is nice too. As Perl programmers always quote: there is more than one way to do it. :-)
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