Building OpenJava on Ubuntu 11

Once one has the mercurial repository cloned and the prereqs installed:

sudo aptitude build-dep openjdk-6
sudo aptitude install openjdk-6-jdk gcc-4.2 g++-4.2
sudo aptitude install libmotif-dev

one has to set the following:

export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-6-openjdk 
export ALT_HOTSPOT_CLIENT_PATH=/usr/lib/jvm/java-6-openjdk/jre/lib/i386/client
export ALT_HOTSPOT_SERVER_PATH=/usr/lib/jvm/java-6-openjdk/jre/lib/i386/server
export ALT_HOTSPOT_IMPORT_PATH=/usr/lib/jvm/java-6-openjdk
export ALT_JDK_IMPORT_PATH=/usr/lib/jvm/java-6-openjdk

Well, at least I did.  Then a 'make ALLOW_DOWNLOADS=true' gets things rolloing.  Not sure why this isn't documented anywhere that was easy for me to find.