Look for kqueue on Darwin 9.* as per ticket #338

git-svn-id: http://www.varnish-cache.org/svn/trunk@3233 d4fa192b-c00b-0410-8231-f00ffab90ce4

configure.ac

@@ -179,7 +179,7 @@ AC_ARG_ENABLE(kqueue,
 
 if test "$enable_kqueue" = yes; then
 	case $host in
-	*-*-freebsd*)
+	*-*-freebsd* | *-*-darwin9* )
 		AC_CHECK_FUNCS([kqueue])
 		;;
 	*-*-bsd*)