[Dovecot] Problem installing latest dovecot w vpopmail

[Joe @ 3ZZZ]

Hello -

I am trying to migrate my dovecot installation from an older server  
running version 1.x to the latest 2.0.3

When I run configure --with-vpopmail, it bombs pretty quick as follows:

./configure --with-vpopmail
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
configure: error: vpopmail support is broken. fix it or access its db  
another way.


however, vpopmail seems to be working fine, i can add domains from  
vpopmail/bin/vadddomain and they show up in the database just fine.   
So why do I receive this error and how can i troubleshoot?

thank you very much in advance,
Joe