# Add a new directory <tt>engines/quux/</tt>
# Add <tt>engines/quux/
module. mk</tt> (looking at module. mk files of existing engines should make it clear what you have to do).
# Add <tt>engines/quux/quux.h</tt> and <tt>engines/quux/quux.cpp</tt>; this will contain your Engine subclass (or at least parts of it).
# Add <tt>engines/quux/detection.cpp</tt>; It will contain the plugin interface code (more on that in the next section).
# 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.
# Modify <tt>engines/plugins_table.h</tt>; It should be pretty straightforward to do this by checking out how the other engines do it.
That's it. The difficult part is of course writing the Engine subclass. More on that in the next section!