In the google style guidelines at http://source.android.com/source/code-style.html#log-sparingly, you are told to wrap verbose/debug log statements in if (LOCAL_LOGV) / if (LOCAL_LOGD). I don't quite understand where LOCAL_LOG[D|V] is supposed to be defined, and exactly why this would filter out the log statements when creating a release build.
I can't seem to find the documentation describing this, can anyone help?