How to compile the Angband Native port for Android.
To build, you should use Ant 1.8.1. See here http://ant.apache.org/.
... ndk.dir=/home/user/Java/android-ndk-r5b sdk.dir=/home/user/Java/android-sdk-linux ...
The ndk.dir and sdk.dir properties should point to Android NDK and Android SDK.
ant
Other supported targets for Angband Variants apk and release builds:
ant angband-release ant variants-debug ant variants-release
Note that Angband Variants apks end up under angdroid/alt-apk/variants/bin/