Should I hand-edit a port?

Hello, I have managed to install a minimal CRUX system. I updated ports and upgraded the system ("prt-get sysup"). During the upgrade, one package failed: The upgrade of libdevmapper failed because the script tries to download http://mirrors.kernel.org/sources.redhat.com/lvm2/LVM2.2.02.129.tgz But that file does not exist. The closest file names I see are: - LVM2.2.02.119.tgz - LVM2.2.02.130.tgz I have found the libdevmapper port on my computer, and I am wondering if I should edit it? Would I be doing something terribly stupid by mucking about with a Pkgfile from core? If it's ok to edit Pkgfile, does anyone know what LVM2 file I should use? Cheers, Daniel.