README:

  This file should be located at the top of the OpenJDK Mercurial repository

  forest. This top or enclosing repository will include a "make" directory,

  and a Makefile at the very top of the repository.

  It should also include the 6 repositories: "jdk", "hotspot", "langtools",

  "corba", "jaxws"  and "jaxp".

  See http://openjdk.java.net/ for more information about the OpenJDK.

Simple Build Instructions:

  1. Download and install a JDK 6 from

     http://java.sun.com/javase/downloads/index.jsp

     Set the environment variable ALT_BOOTDIR to the location of this JDK 6.

  2. Download and install the Binary Plugs for the most recent JDK7 from

     http://download.java.net/openjdk/jdk7/

     Set the environment variable ALT_BINARY_PLUGS_PATH to the location of

     these binary plugs.

  3. Check the sanity of doing a build with the current machine:

       gnumake sanity

     See README-builds.html if you run into problems.

  4. Do a complete build of the jdk:

       gnumake all

     The resulting JDK image should be found in build/*/j2sdk-image

where gnumake is GNU make 3.81 or newer, /usr/bin/make on Linux and

/usr/sfw/bin/gmake or /opt/sfw/bin/gmake on Solaris.