title: MINIX compiling .c files error
body: <p>Im working on minix 3.2.1 . I just put a :
   <code>printf("hi");</code>
  command in do_mkdir -> open.c ,in many lines , so when i use mkdir 'name' command in shell it prints hi.
  I put this printf inside :</p>
  
  <blockquote>
    <p>mined /usr/src/servers/vfs/open.c   in do_mkdir function
    and i compile it with :
        cd /usr/src/
        make hdboot
    and then i reboot. But it just make file, it wont print hi.
    I tried compile with make install too.. but nothing.
    I think its problem with compiling. Any idea?</p>
  </blockquote>