A minimal OS X iTunes scrobbling solution that implements Audioscrobbler protocol 2.0.
To compile it you'll need to create lastfm_api.h and add a
Last.fm key and secret like so:
#define LASTFM_API_KEY "abcdef0123456789abcdef0123456789"
#define LASTFM_SHARED_SECRET "abcdef0123456789abcdef0123456789"