BIND 10 master, updated. 19ba70c7cc3da462c70e8c4f74b321b8daad0100 [master] applied proposed patch for #1633 (MacOS Lion build fix)

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- Log -----------------------------------------------------------------
commit 19ba70c7cc3da462c70e8c4f74b321b8daad0100
Author: JINMEI Tatuya <jinmei at isc.org>
Date:   Tue Feb 21 09:22:15 2012 -0800

    [master] applied proposed patch for #1633 (MacOS Lion build fix)

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Summary of changes:
 configure.ac |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

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diff --git a/configure.ac b/configure.ac
index de79551..dc9efdb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -108,6 +108,10 @@ case "$host" in
 	LDFLAGS="$LDFLAGS -z now"
 	;;
 *-apple-darwin*)
+	# Starting with OSX 10.7 (Lion) we must choose which IPv6 API to use
+	# (RFC2292 or RFC3542).
+	CPPFLAGS="$CPPFLAGS -D__APPLE_USE_RFC_3542"
+
 	# libtool doesn't work perfectly with Darwin: libtool embeds the
 	# final install path in dynamic libraries and our loadable python
 	# modules always refer to that path even if it's loaded within the