diff -ur ../../../nmh-1.0.3-DIST/acconfig.h ./acconfig.h
--- ../../../nmh-1.0.3-DIST/acconfig.h	Mon Jan 24 22:13:38 2000
+++ ./acconfig.h	Mon Feb 28 10:20:34 2000
@@ -22,10 +22,13 @@
  * other programs which may modify your maildrops.
  * Currently you can only use one type.
  */
+#if 0
+/* Patched to be specified in CFLAGS by FreeBSD port. */
 #define DOT_LOCKING   1
 /* #define FCNTL_LOCKING 1 */
 /* #define LOCKF_LOCKING 1 */
 /* #define FLOCK_LOCKING 1 */
+#endif
 
 /*
  * If you have defined DOT_LOCKING, then the default is to
@@ -104,7 +107,7 @@
  * The prefix which is prepended to the name of messages when they
  * are "removed" by rmm.  This should typically be `,' or `#'
  */
-#define BACKUP_PREFIX ","
+#define BACKUP_PREFIX "#"
 
 /*
  * Name of link to file to which you are replying.
@@ -128,11 +131,11 @@
 /* Defined for Solaris 2.x, Irix, OSF/1, HP-UX, AIX */
 #undef SVR4
 /* Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS, Mac OS X/Rhapsody */
-#undef BSD44
+#define BSD44
 
 /* Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS, Mac OS X/Rhapsody 
  * -- does PicoBSD have uname? :) */
-#undef BSD42
+#define BSD42
 
 /* Defined for SCO5 */
 #undef SCO_5_STDIO
@@ -231,7 +234,7 @@
  * not world writable.  There are no guarantees as to the safety of doing this,
  * but this #define will add some extra security checks.
  */
-#undef MAILGROUP
+#define MAILGROUP
 
 /* Define ruserpass as _ruserpass if your libraries have a bug *
  * such that it can't find ruserpass, but can find _ruserpass. */