In my maintenance of Perl::Critic::Bangs, it's a big PITA (as opposed to PITA) to type in filenames like lib/Perl/Critic/Policy/Bangs/ProhibitStupidCode.pm all the time, so I created symlinks to them in my root directory. Problem is that Makefile.PL thinks that they're part of the distro.
Solution: Override the method libscan() and have it return an empty space if the file is a symlink.
package MY;
sub MY::libscan {
my $self = shift;
my $path = shift;
$path = $self->SUPER::libscan($path);
# I have a bunch of symlinks in the root. Ignore them.
return '' if -l $path;
return $path;
};