WB unpacks into a directory called ‘wb’.
If you plan to use WB with SCM, the directories scm and wb should be in the same directory. Doing ‘make wbscm.so’ in the scm directory compiles a dynamically linkable object file from the WB C source. Including the ‘-F wb’ option to an executable build compiles the WB interface into the executable. It is not necessary to compile anything in wb directory.
$(prefix)tree, as assigned in the Makefile.