Building OpenJDK 9 32-bit on Windows

Building OpenJDK 9 on Windows, especially in a 32-bit environment, can be a complex process due to the various dependencies and configurations involved. Here's a general outline of the steps you need to follow. Keep in mind that building OpenJDK requires a fair amount of system resources and time.

Please note that OpenJDK 9 has reached its end of life and is no longer officially supported. It's recommended to use a more recent version of OpenJDK if possible.

Prerequisites:

1. Tools and Libraries: Make sure you have the necessary development tools, libraries, and dependencies installed on your system. These include:

   • Git: To clone the OpenJDK source code.
   • Visual Studio: For building on Windows.
   • JDK 8: Required for building JDK 9.
   • Cygwin or MSYS2: Required for Unix-like command-line tools.

2. Environment Variables: Set up environment variables like JAVA_HOME, VS140COMNTOOLS (for Visual Studio), and ensure that they are included in your system's PATH.

Steps:

1. Clone OpenJDK Repository:

   • Clone the OpenJDK source repository from the official repository: https://hg.openjdk.java.net/jdk9/jdk9
   • Navigate to the repository root folder.

2. Configure Build Environment:

   • Open a Cygwin or MSYS2 terminal.
   • Run the configure script to set up the build environment. You'll need to provide appropriate options for your configuration. For 32-bit Windows, use the --with-target-bits=32 flag:

     csharpCopy code
     bash configure --with-target-bits=32
     
     

3. Build OpenJDK:

   • Run the build process using the following command:

     cssCopy code
     make all
     
     

4. Install OpenJDK:

   • Once the build is complete, you'll need to copy the necessary files to the desired installation directory. This step might require administrative privileges.

Please note that the above steps provide a high-level overview of the process. The actual commands and configurations might vary depending on your system setup and requirements. Additionally, building OpenJDK on Windows 10 might involve some challenges and issues that need to be addressed as you encounter them.

For more detailed instructions and troubleshooting, you can refer to the official OpenJDK build documentation and community forums. Keep in mind that building OpenJDK can be complex and time-consuming, so it's recommended to consult the official resources for the most accurate and up-to-date information.