Warning installing OpenDx on Snow Leopard

[stoucha@…]

Tried to install opendx on my system (Snow Leopard)

It installed quite a few dependencies without any problem. Then I get the following:

---> Installing openmotif @2.3.2_2 ---> Activating openmotif @2.3.2_2 ---> Cleaning openmotif ---> Fetching opendx ---> Attempting to fetch dx-4.4.4.tar.gz from ​http://distfiles.macports.org/opendx ---> Verifying checksum(s) for opendx ---> Extracting opendx ---> Applying patches to opendx ---> Configuring opendx ---> Building opendx ---> Staging opendx into destroot Warning: violation by /opt/local/dx Warning: opendx violates the layout of the ports-filesystems! Warning: Please fix or indicate this misbehavior (if it is intended), it will be an error in future releases! ---> Installing opendx @4.4.4_2 ---> Activating opendx @4.4.4_2 ---> Cleaning opendx

What does this mean and do I need to fix it?

Thanks.