Set the source root directory (ACESSDIR) and the destination directory
(DISTROOT).
+To be able to build usermode programs, Usermode/Libraries/acess.ld needs
+ to be edited to change the SEARCH_DIR directive to the correct path.
+You may also want to edit Usermode/Filesystem/Conf/BootConf.cfg before
+ installing.
Now you can compile the kernel and usermode applications by calling make
in the source root.