1 README:

     2   This file should be located at the top of the jdk Mercurial repository.

     3 

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

     5 

     6 Simple Build Instructions:

     7 

     8   1. Download and install a JDK 6 from

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

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

    11 

    12   2. Either download and install the latest JDK7 from

    13      http://download.java.net/openjdk/jdk7/, or build your own complete

    14      OpenJDK7 by using the top level Makefile in the OpenJDK Mercurial forest.

    15      Set the environment variable ALT_JDK_IMPORT_PATH to the location of

    16      this latest JDK7 or OpenJDK7 build.

    17      

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

    19        cd make && gnumake sanity

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

    21   

    22   4. Do a partial build of the jdk:

    23        cd make && gnumake all

    24   

    25   5. Construct the images:

    26        cd make && gnumake images

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