binary pkg names from 'make package' broken

[Hubert Feyrer <hubert%feyrer.de@localhost>]

On my Mac, I see funny pkg names created by "make package":

        mini% make package
        => Bootstrap dependency digest>=20010302: found digest-20080510
        ===> Building binary package for gettext-lib-0.18.1.1
	=> Creating binary package 
===>	/usr/pkgsrc/packages/All//Volumes/pkgsrc5-0.18.1.1.tgz
        mini% pwd
        /usr/pkgsrc/devel/gettext-lib

This also happens for other packages, resulting in funny (and unusable) 
binary package names:

        mini% ls /usr/pkgsrc/packages/All/Volumes/
        pkgsrc5-0.04nb4.tgz     pkgsrc5-0.26nb1.tgz     pkgsrc5-1.8.27nb5.tgz
        pkgsrc5-0.18.1.1.tgz    pkgsrc5-0.58.tgz        pkgsrc5-2.18nb2.tgz
        pkgsrc5-0.23nb1.tgz     pkgsrc5-1.1.0.tgz       pkgsrc5-2.65nb1.tgz

Is this known?


 - Hubert