I already committed to modular HEAD's util/cf/bsdLib.rules.

This is for 6.9.x.

INSTALLMINORREV = true for DragonFly.  Help DragonFly since
the package build system knows and uses these "minor
revisions". As discussed with DragonFly developer, Joerg
Sonnenberger.  And I was told this is probably just an
historic artifact from a.out versioning (but would be hard
to change for FreeBSD because many ports pkg-plists would
need to be changed).

$NetBSD: patch-ak,v 1.3 2006/01/19 00:30:55 joerg Exp $

--- config/cf/bsdLib.rules.orig	2005-06-01 18:09:09.000000000 +0200
+++ config/cf/bsdLib.rules
@@ -229,7 +229,7 @@ LintLibReferences(varname,libname,libsou
  * InstallSharedLibrary - generate rules to install the shared library.
  * NOTE: file must be executable, hence "INSTBINFLAGS"
  */
-#ifndef FreeBSDArchitecture
+#if !defined(FreeBSDArchitecture) || defined(DragonFlyArchitecture)
 INSTALLMINORREV = true
 #else
 INSTALLMINORREV = false