Just some hints for others out there building PDE for SunOS/Solaris;
I got it to work using the instructions on this site referring to using the 'build/linux' directrory. I did need to download the latest version (1.22) of jikes from
http://sourceforge.net/projects/jikes and built-and compiled it as per the directions.
I dropped the compiled jikes directory into the 'build/linux/work' directory.
I then removed the java directory from there, and made a symlink from '/usr/java/jre' to 'java'.
I then ran the make.sh script, as per the regular directions.
One other change after that was that the 'processing' script in 'build/linux/work' needed to be minorly changed so that it was run with the shell '/bin/bash'.
Then it runs swimmingly!
One question though; I attempted to run some of the included sketches, but any of them that referenced the function framerate() weren't happy with that. (This is with the current subversion release as of right now, 2442 (it says its processing version 0116 Beta) I assume this is just because it's a development version... thoughts?