ERROR building webkit-gtk2 after updating to Perl

[Jerry]

After updating Perl, I am unable to build "www/webkit-gtk2". It
terminates with the following error message:

/usr/local/bin/perl "./WebCore/css/makeprop.pl"
mv CSSPropertyNames.* ./DerivedSources
/usr/local/bin/perl -ne 'print lc' ./WebCore/css/CSSValueKeywords.in ./WebCore/css/SVGCSSValueKeywords.in > CSSValueKeywords.in
if sort CSSValueKeywords.in | uniq -d | grep -E '^[^#]'; then echo 'Duplicate value!'; exit 1; fi
/usr/local/bin/perl "./WebCore/css/makevalues.pl"
mv CSSValueKeywords.* ./DerivedSources
  GEN    DerivedSources/HTMLElementFactory.cpp
Can't locate Switch.pm in @INC (@INC contains: ./WebCore/bindings/scripts /usr/local/lib/perl5/5.14.0/BSDPAN /usr/local/lib/perl5/site_perl/5.14.0/mach /usr/local/lib/perl5/site_perl/5.14.0 /usr/local/lib/perl5/5.14.0/mach /usr/local/lib/perl5/5.14.0 .) at WebCore/dom/make_names.pl line 38.
BEGIN failed--compilation aborted at WebCore/dom/make_names.pl line 38.
gmake: *** [DerivedSources/HTMLElementFactory.cpp] Error 2
*** Error code 1

Stop in /usr/ports/www/webkit-gtk2.

The complete log file is available at:
<http://seibercom.net/logs/webkit-gtk2.txt>

FreeBSD 8.2-STABLE amd64

-- 
Jerry ✌
jerry+ports at seibercom.net

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