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From: Bjoern A. Zeeb <bz@FreeBSD.org>
Date: Tue, 5 Aug 2014 10:48:53 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r269581 - head/sys/modules/if_gif
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Author: bz
Date: Tue Aug  5 10:48:53 2014
New Revision: 269581
URL: http://svnweb.freebsd.org/changeset/base/269581

Log:
  Revert the logic change from r269540.  If the opt_inet6.h file is empty
  we set MK_INET6_SUPPORT to no, not if we do define INET6.
  This way we do not try to build IPv6 parts in if the kernel doesn't support
  them.
  
  This unbreaks several kernel configurations building modules but no INET6.

Modified:
  head/sys/modules/if_gif/Makefile

Modified: head/sys/modules/if_gif/Makefile
==============================================================================
--- head/sys/modules/if_gif/Makefile	Tue Aug  5 10:29:01 2014	(r269580)
+++ head/sys/modules/if_gif/Makefile	Tue Aug  5 10:48:53 2014	(r269581)
@@ -9,7 +9,7 @@ SRCS=	if_gif.c in_gif.c opt_inet.h opt_i
 
 .if defined(KERNBUILDDIR)
 OPT_INET6!= cat ${KERNBUILDDIR}/opt_inet6.h
-.if !empty(OPT_INET6)
+.if empty(OPT_INET6)
 MK_INET6_SUPPORT=no
 .endif
 .endif