Author: sjg
Date: Tue Jan 15 23:35:53 2019
New Revision: 343066
URL: https://svnweb.freebsd.org/changeset/base/343066

Log:
  Use .undef per variable
  
  Attempting to expand a variable to a list of vars to .undef
  does not actually work.
  
  Reviewed by:  bdrewery
  Differential Revision:        D17251

Modified:
  head/share/mk/dirdeps-options.mk

Modified: head/share/mk/dirdeps-options.mk
==============================================================================
--- head/share/mk/dirdeps-options.mk    Tue Jan 15 22:31:54 2019        
(r343065)
+++ head/share/mk/dirdeps-options.mk    Tue Jan 15 23:35:53 2019        
(r343066)
@@ -1,5 +1,5 @@
 # $FreeBSD$
-# $Id: dirdeps-options.mk,v 1.8 2018/05/29 22:31:21 sjg Exp $
+# $Id: dirdeps-options.mk,v 1.9 2018/09/20 00:07:19 sjg Exp $
 #
 #      @(#) Copyright (c) 2018, Simon J. Gerraty
 #
@@ -54,7 +54,8 @@ DIRDEPS += ${DIRDEPS.$o.${MK_$o:U}:U}
 DIRDEPS := ${DIRDEPS:O:u}
 # avoid cross contamination
 .for o in ${DIRDEPS_OPTIONS:tu}
-.undef DIRDEPS.$o.yes DIRDEPS.$o.no
+.undef DIRDEPS.$o.yes
+.undef DIRDEPS.$o.no
 .endfor
 .else
 # whether options are enabled or not,
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