or download this
$ PERL_DL_DEBUG=1 perl -MTime::HiRes -e 'print join "\n", values %INC'
DynaLoader.pm loaded (/usr/lib/perl5/5.8.8/x86_64-linux-thread-multi /
+usr/lib/perl5/5.8.8 /usr/lib/perl5/site_perl/5.8.8/x86_64-linux-threa
+d-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/
+lib/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/
+vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl ., /lib64 /usr/lib64 /us
+r/local/lib64)
...
/usr/lib/perl5/5.8.8/AutoLoader.pm
/usr/lib/perl5/5.8.8/x86_64-linux-thread-multi/Config.pm
/usr/lib/perl5/5.8.8/x86_64-linux-thread-multi/DynaLoader.pm