There are some known problems for "make build":

To bootstrap (f)lex copy inetscan.c to scan.c.
Install lib/libcurses/curses.h before compiling lib/libterm.
Install lint before using it to build llibs...
Install last yacc before compiling lint if you get errors with yydebug.
Interface between rtld/ld.so and *crt0* has been modified (V4).

This version has the last draft Neighbor Discovery
(not fully tested).
