$ perl -V
...
  @INC:
    /usr/local/lib/perl5/site_perl/5.12.0/cygwin-thread-multi-64int
    /usr/local/lib/perl5/site_perl/5.12.0
    /usr/local/lib/perl5/5.12.0/cygwin-thread-multi-64int
    /usr/local/lib/perl5/5.12.0