graphviz-cairo and perl5.8

[Curt Siffert]

graphviz-cairo requires graphviz, cairo, and p5-xml-parser .  I have  
the graphviz and the cairo ports installed.

p5-xml-parser requires perl5.8 .  I can't bring myself to install the  
perl5.8 port.  :)

Because, I'm on Tiger, and I already have perl5.8 .  Do I really need  
an entire separate installation of perl5.8 (5.8.8 instead of 5.8.6)  
to install graphviz-cairo?  How can I get around this?  Is this a bug  
with the port?

Thanks!
Curt