diff -ruN mserver-0.23a.orig/config.h mserver-0.23a/config.h
--- config.h.orig	Sun Jan 18 11:57:10 1998
+++ config.h	Fri May 21 11:51:00 1999
@@ -4,7 +4,6 @@
 
 /* #define if we are building on a BSD system */
 
-#undef BSD
 
 /* location of the runtime config file */
 
@@ -12,5 +11,5 @@
 
 /* location of the spool dir for modem locks */
 
-#define LOCK_DIR	"/var/lock"
+#define LOCK_DIR	"/var/spool/lock"