hg: build-infra/jdk8/jdk: Fixed broken build. Make correctly concluded that none of the ?-only targets dependended on anything, and thus could rebuild any ?-only target in any order and as concurrently as it liked.

[fredrik.ohrstrom at oracle.com]

Changeset: a23c17af08ab
Author:    ohrstrom
Date:      2012-09-10 23:33 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk8/jdk/rev/a23c17af08ab

Fixed broken build. Make correctly concluded that none of the ?-only targets dependended on anything, and thus could rebuild any ?-only target in any order and as concurrently as it liked.

! makefiles/Makefile