+/*
+ * To bind this into PGSQL, try something like:
+ *
+ * CREATE FUNCTION maptile_for_point(int8, int8, int4) RETURNS int4
+ * AS '/path/to/rails-port/db/functions/libpgosm', 'maptile_for_point'
+ * LANGUAGE C STRICT;
+ *
+ * (without all the *s)
+ */
+