Confused about what to do after a version upgrade

[Paul Hoffman]

Greetings. I just upgraded from perl-5.8.9_7 to perl-5.16.2_1. I built from ports and used the USE_PERL and SITECUSTOMIZE config options.

I want to remove perl-5.8.9_7 from my system. However:

# sudo pkg_delete perl-5.8.9_7
pkg_delete: package 'perl-5.8.9_7' is required by these other packages
and may not be deinstalled:
autoconf-2.68
help2man-1.40.5
majordomo-1.94.5_6
mhonarc-2.6.18_1
mirror-2.9_1
openwebmail-2.53_2
p5-CGI-SpeedyCGI-2.22_7
p5-Digest-MD5-2.51
p5-IO-Socket-SSL-1.74
p5-Locale-gettext-1.05_3
p5-MIME-Base64-3.13
p5-Mail-Tools-2.08
p5-Net-SSLeay-1.48
p5-Text-Iconv-1.7
p5-TimeDate-1.20,1
p5-XML-Parser-2.41
pure-ftpd-1.0.35
texi2html-1.82,1
autoconf-2.69
ap22-mod_wsgi-2.8_2
apache-2.2.22_6
automake-1.12.3
p5-Mail-Tools-2.12
p5-MIME-Tools-5.504,2

What do I need to do next in order to get rid of the old and unsafe Perl?

--Paul Hoffman