Problem is Fedora rel 11 compiler is botched.
Made a copy of /usr/include/stdio.h in $ROOT/platforms/unix/vm/stdio.h
Edited this file removing dprintf (starting line 399)
Changed:
     #include <stdio.h>
to:
     #include "stdio.h"
whenever had problem.

in file debug.c included line #include <stdlib.h>

Dirty work. But fix things... :(