# Modify <tt>engines/engines.mk</tt> by adding your engine. It should be clear what to do by looking at what is done for the other engines there.
# Modify <tt>engines/configure.engines</tt> by adding a new add_engine line. Again, just check out what is done for the existing engines.
That's it. The difficult part is of course writing the Engine subclass. More on that in the next section!