MacResearch

I am running OSX 10.5.8
I followed the instructions posted on http://ddd.darwinports.com/ with the goal of installing ddd on my Mac.
I downloaded and installed Darwin Ports and then tried to run the instruction to install DDD but I get the following message

The ports tree has been updated. To upgrade your installed ports, you should run
port upgrade outdated
host705:bin mauede$ cd /opt/local/bin/portslocation/dports/ddd
-bash: cd: /opt/local/bin/portslocation/dports/ddd: No such file or directory

In fact portslocation does not exist as shown in the following

host705:bin mauede$ cd /opt/local/bin/
host705:bin mauede$ ll
total 352
drwxr-xr-x 7 root admin 238 Feb 8 07:24 .
drwxr-xr-x 13 root admin 442 Feb 8 07:24 ..
-r-xr-xr-x 1 root admin 36556 Feb 8 07:24 daemondo
-r-xr-xr-x 1 root admin 124360 Feb 8 07:24 port
lrwxr-xr-x 1 root admin 4 Feb 8 07:24 portf -> port
-r-xr-xr-x 1 root admin 5172 Feb 8 07:24 portindex
-r-xr-xr-x 1 root admin 2557 Feb 8 07:24 portmirror

How can I install DDD ?
I downloaded DDD source code from its official site.
Will configure, make, and make install correctly install DDD on Mac as well as such instructions work on Linux ?

Thanks,
Maura