[Bioperl-l] How to patch something in installed bioperl module

[Gowthaman Ramasamy]

Hi List,
I am advised to patch (comment out some lines and add some) GFF.pm bioperl module.
How do i go about it?.
I have the latest Bioperl 1.5.2 version installed....via CPAN

I find GFF.pm in the following location...
/root/.cpan/build/bioperl-1.5.2_102/Bio/Tools/GFF.pm


Do i have to recompile it after editing........
I am completely clue less......I have not done this earlier.....
Can any one help me to do this.

Many thanks in advance........

gowthaman