--- a/common/autoconf/jdk-options.m4	Wed Jan 23 11:41:06 2013 +0100
+++ b/common/autoconf/jdk-options.m4	Wed Jan 23 11:42:29 2013 +0100
@@ -389,7 +389,8 @@
   AC_MSG_ERROR([Milestone must have a value])
 elif test "x$with_milestone" != x; then
     MILESTONE="$with_milestone"
-else
+fi
+if test "x$MILESTONE" = x; then
   MILESTONE=internal
 fi