Cross Compilation

Configuring a cross-compilation build environment

This builds the library based on the G++ compiler and its supplemental packages.
This will allow you to build native binaries for

• Windows: x86, x86_64 using mingw-w64
• Linux: arm, arm64 (aarch64) and ppc64 native

Prerequisites

Starting point: A clean Ubuntu install with latest patches applied, one of:

• Ubunutu 14.04 Trusty Tahr
• Ubunutu 16.04 Xenial Xerus
• Ubunutu 20.04 Focal Fossa

(other platforms will work, but the package names and commands may vary)

Windows 32-bit

1. Install dependencies

sudo apt-get install mingw-w64 binutils-mingw-w64-i686

2. Cross-compile using mingw32 toolchain

mvn -P mingw32

Windows 64-bit

1. Install dependencies

sudo apt-get install mingw-w64

2. Cross-compile using mingw32 toolchain

mvn -P mingw64

ARM 32-bit

1. Install dependencies

sudo apt-get install gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf

2. Cross-compile using armhf toolchain

mvn -P armhf

ARM 64-bit

1. Install dependencies

sudo apt-get install g++-aarch64-linux-gnu

2. Cross-compile using aarch64 toolchain

mvn -P aarch64

PPC64

1. Install dependencies

sudo apt-get install g++-powerpc64le-linux-gnu

2. Cross-compile using ppc64 toolchain

mvn -P ppc64

g++-powerpc64le-linux-gnu