Problems installing PL/Java on Mac OS 10.4.11

A couple of days ago, I tried to install PL/Java with PostgreSQL on my new Laptop. I have to tell you it has been challenging since PL/Java packages have been compiled for Windows and Linux distributions. I downloaded all available packages and none of them worked on my Mac. Several errors were launched, one of them was that pljava library couldn't be loaded because the first eight bytes are unknown. Finally, I downloaded the Source Code and I decided to compile. I put all the compiled files on their proper paths and then PL/Java could be installed on the database schema.