regenerate

configure

@@ -14,7 +14,7 @@
 # OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 # PERFORMANCE OF THIS SOFTWARE.
 #
-# $Id: configure,v 1.508 2011/07/06 05:02:47 tbox Exp $
+# $Id: configure,v 1.509 2011/07/26 22:07:50 mgraff Exp $
 #
 # 	Portions of this code release fall under one or more of the
 # 	following Copyright notices.  Please see individual source
@@ -517,7 +517,7 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 # OF THE POSSIBILITY OF SUCH DAMAGE.
 #
-# From configure.in Revision.
+# From configure.in Revision: 1.528 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.67.
 #
@@ -20295,6 +20295,14 @@ case "$host" in
 		STD_CDEFINES="$STD_CDEFINES -D_GNU_SOURCE"
 		CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
 		;;
+	#
+	# Starting with OSX 10.7 (Lion) we must choose which IPv6 API to use.
+	# Setting this is sufficient to select the correct behavior for BIND 9.
+	#
+	*-darwin*)
+	  STD_CDEFINES="$STD_CDEFINES -D__APPLE_USE_RFC_3542"
+	  CPPFLAGS="$CPPFLAGS -D__APPLE_USE_RFC_3542"
+	  ;;
 esac
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5