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From: Ed Maste <emaste@FreeBSD.org>
Date: Mon, 13 Sep 2010 18:26:34 +0000 (UTC)
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Subject: svn commit: r212570 - head/usr.sbin/config
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Author: emaste
Date: Mon Sep 13 18:26:34 2010
New Revision: 212570
URL: http://svn.freebsd.org/changeset/base/212570

Log:
  Allow a kernel config to specify a set but empty value via
  'makeoptions OPTION=' for consistency with the make commandline.
  
  Previously 'makeoptions WERROR=' would result in a syntax error; now
  it produces the same effect as 'makeoptions WERROR'.  Both forms now
  result in 'WERROR=' in the generated Makefile.

Modified:
  head/usr.sbin/config/config.y

Modified: head/usr.sbin/config/config.y
==============================================================================
--- head/usr.sbin/config/config.y	Mon Sep 13 18:26:32 2010	(r212569)
+++ head/usr.sbin/config/config.y	Mon Sep 13 18:26:34 2010	(r212570)
@@ -261,6 +261,7 @@ Mkopt_list:
 
 Mkoption:
 	Save_id { newopt(&mkopt, $1, ns(""), 0); } |
+	Save_id EQUALS { newopt(&mkopt, $1, ns(""), 0); } |
 	Save_id EQUALS Opt_value { newopt(&mkopt, $1, $3, 0); } |
 	Save_id PLUSEQUALS Opt_value { newopt(&mkopt, $1, $3, 1); } ;