if_bridge.h:183:20: error: field 'ip6' has incomplete type

hello there,
i got the errors below when building brigde-utils-1.5.
adding "in6.h" to "if_bridge.h" apparently solve them;
but i would be happy if someone can advise me to build
bridge-utils and the correct fix for these issues.

thanks,

-------------8<----------------------8<-------------------------------------

In file included from libbridge.h:24:0,
                  from libbridge_devif.c:28:
/usr/include/linux/if_bridge.h:183:20: error: field 'ip6' has incomplete  
type
     struct in6_addr ip6;
                     ^
In file included from libbridge.h:24:0,
                  from libbridge_if.c:26:
/usr/include/linux/if_bridge.h:183:20: error: field 'ip6' has incomplete  
type
     struct in6_addr ip6;
                     ^
In file included from libbridge.h:24:0,
                  from libbridge_init.c:28:
/usr/include/linux/if_bridge.h:183:20: error: field 'ip6' has incomplete  
type
     struct in6_addr ip6;
                     ^
In file included from libbridge.h:24:0,
                  from libbridge_misc.c:24:
/usr/include/linux/if_bridge.h:183:20: error: field 'ip6' has incomplete  
type
     struct in6_addr ip6;
                     ^
[...]

gcc -Wall -O2 -fPIC -I../libbridge -I/usr/src/linux/include  -c brctl.c
In file included from ../libbridge/libbridge.h:24:0,
                  from brctl.c:25:
/usr/include/linux/if_bridge.h:183:20: error: field 'ip6' has incomplete  
type
     struct in6_addr ip6;
                     ^
-------------8<----------------------8<-------------------------------------
diff -u include/uapi/linux/if_bridge_orig.h include/uapi/linux/if_bridge.h

--- include/uapi/linux/if_bridge_orig.h 2013-06-23 03:55:34.072971125 +0300
+++ include/uapi/linux/if_bridge.h      2013-06-23 03:55:45.676970995 +0300

@@ -14,6 +14,7 @@
  #define _UAPI_LINUX_IF_BRIDGE_H

  #include <linux/types.h>
+#include <linux/in6.h>

  #define SYSFS_BRIDGE_ATTR      "bridge"
  #define SYSFS_BRIDGE_FDB       "brforward"
-------------8<----------------------8<-------------------------------------


--

nirinA