angelauramc-openjdk-build

This branch is for OpenJDK 17 and 21.

Based on Java for Android and the PojavLauncher variant

Building

Setup

Android

Note: We use Ubuntu 24.04 LTS to build our JDKs. Adapt these dependencies to your distribution, it should build fine.

• Install autoconf, python3, python-is-python3, unzip, zip, systemtap-sdt-dev, libxtst-dev, libasound2-dev, libelf-dev, libfontconfig1-dev, libx11-dev, libxext-dev, libxrandr-dev, libxrender-dev, libxtst-dev, libxt-dev.
• If building JDK 17, install openjdk-17-jdk. For 21, openjdk-21-jdk.
• Install Android NDK r27b.

iOS

• Install latest Xcode on your Mac.
• If building JDK 17, install JDK 17. For 21, install JDK 21.

Platform and architecture specific environment variables

	Environment variables
Platform - Architecture	TARGET	TARGET_JDK
Android - armv8/aarch64	aarch64-linux-android	aarch64
Android - armv7/aarch32	arm-linux-androideabi	arm
Android - x86/i686	i686-linux-android	x86
Android - x86_64/amd64	x86_64-linux-android	x86_64
iOS/iPadOS - armv8/aarch64	aarch64-macos-ios	aarch64

Run in this directory:

export BUILD_IOS=1 # only when targeting iOS, default is 0 (target Android)

export BUILD_FREETYPE_VERSION=[2.6.2/.../2.10.4] # default: 2.10.4
export JDK_DEBUG_LEVEL=[release/fastdebug/debug] # default: release
export JVM_VARIANTS=[client/server] # default: client (aarch32), server (other architectures)

# Setup NDK, run once (Android only)
./extractndk.sh
./maketoolchain.sh 

# Get CUPS, Freetype and build Freetype
./getlibs.sh
./buildlibs.sh

# Clone JDK, run once
./clonejdk.sh

# Configure JDK and build, if no configuration is changed, run makejdkwithoutconfigure.sh instead
./buildjdk.sh

# Pack the built JDK
./removejdkdebuginfo.sh
./tarjdk.sh