dd013e7a6f
Add a --with-android-sdk switch, and make that and the --with-android-ndk mandatory when building for Android. Automatically create a proper android/sc/qa/local.properties file (which points to the SDK) for Ant. Restore the Android ARM code generation related flags that I think we want to use (that used to be mentioned in README.cross but were accidentally dropped) to the automated setting of CC and CXX.