If you use Cubic IDE to automatically generate a GNU makefile for you, you may have noticed that the "clean" target won't work. It is because the original makemake tool distributed with Cubic adds an extra backslash to the object directory - as a result, the object files to be cleaned are not found. You have to edit the makefile manually, then.
I have fixed this, recompiled makemake for OS4, and also got rid of a number of compiler warnings. The new version of the tool can be found on
OS4depot.
To install, unpack the archive to the devkits:tools directory and replace the previously installed files.