Mailbox DOTLOCK and Linux (ZMailer 2.99.11)

[Matti Aarnio <mea@utu.fi>]

On my own machine the DOTLOCK facility did not compile, because of
some missing/moved things in between various include headers.
In the end I realized the  Minimal Patch  to get it working :-)

This MAY come up with other POSIX machines as well!

	/Matti Aarnio <mea@utu.fi> <mea@nic.funet.fi>


*** transports/mailbox/mailbox.c~	Thu Feb  2 20:59:02 1995
--- transports/mailbox/mailbox.c	Mon Feb  6 12:09:37 1995
***************
*** 25,30 ****
--- 25,31 ----
  #include <fcntl.h>
  #include <sys/file.h>
  #include <sys/stat.h>
+ #include NDIR_H
  #include "mail.h"
  #include "zmsignal.h"
  #include "ta.h"