perl Build.PL

[Michael Thon]

I am writing a portfile for the perl module package bioperl.  The  
package uses a Build.PL script instead of Makefile.PL.  The script  
fixes dependencies by installing perl modules with CPAN, and even  
upgrades CPAN in Mac OS leopard.  I know very little about these  
configuration and build systems but I assume that for macports, this  
automatic dependency resolution should be handled by macports and not  
the package's installer.  Does anyone know if there is an easy way to  
disable the dependency checking, or do I have to patch the Build.PL  
script?