A few months ago, I downloaded an evaluation copy of IBM’s XLC compiler to try it out on FFmpeg. The trial licence has now expired, so what better way to spend a few minutes than by cracking it?
The installation script, as expected, copied a number of files into a directory under /opt. More unusually, it also created a small shared library, libxlc101e.so.1, and placed it in /usr/lib. No other files from the installation package were modified, so this must be where the licence is hiding. Without further ado, we proceed to take it apart.