hgomez/obuildfactory — pull request #4 by jponge (2013-01-14 13:20:04+00:00)
Title: ALT_BOOTDIR based on JAVA_HOME when set

`java_home` works for "standard" JDKs, but it is often desirable to have custom OpenJDK builds in locations such as `/opt`.

This patch allows picking a correct `$ALT_BOOTDIR` when `$JAVA_HOME` is set, hence allowing building OpenJDK with custom OpenJDK builds.