Generates Ant scripts for multiple native build targets based on the given BuildConfig. For each build target, an Ant build script is created that will compile C/C++ files to a shared library for a specific platform. A master build script is generated that will execute the build scripts for each platform and bundles their shared libraries into a Jar file containing all shared libraries for all desktop platform targets, and armeabi/ and armeabi-v7a/ folders containing the shard libraries for Android. The scripts can be executed from the command line or via the BuildExecutor. The resulting shared libraries can be loaded with the SharedLibraryLoader which will load the correct shared library from the natives jar/arm folders based on the platform the application is running on

A common use case looks like this:

BuildTarget win32 = BuildTarget.newDefaultTarget(Os.Windows, Architecture.Bitness._32);
BuildTarget win64 = BuildTarget.newDefaultTarget(Os.Windows, Architecture.Bitness._64);
BuildTarget linux32 = BuildTarget.newDefaultTarget(Os.Linux, Architecture.Bitness._32);
BuildTarget linux64 = BuildTarget.newDefaultTarget(Os.Linux, Architecture.Bitness._64);
BuildTarget mac = BuildTarget.newDefaultTarget(Os.MacOsX, Architecture.Bitness._32);
BuildTarget android = BuildTarget.newDefaultTarget(Os.Android, Architecture.Bitness._32);
BuildConfig config = new BuildConfig("mysharedlibrary");

new AntScriptGenerator().generate(config, win32, win64, linux32, linux64, mac, android);
BuildExecutor.executeAnt("jni/build.xml", "clean", "all", "-v");

// assuming the natives jar is on the classpath of the application 
new SharedLibraryLoader().load("mysharedlibrary)

This will create the build scripts and execute the build of the shared libraries for each platform, provided that the compilers are available on the system. Mac OS X might have to be treated separately as there are no cross-compilers for it.

The generator will also copy the necessary JNI headers to the jni/jni-headers folder for Windows, Linux and Mac OS X.