(new preprocessor directive - greatly improves CPU loading)
It'd be nice if we could use 'ARDOUR::config_dir_name' for this purpose (or perhaps 'PROGRAM_VERSION'). However, neither is implemented widely enough at present to make this practical. Keep an eye on them though, as possible future strategies.
Note that there's no 'VS Solution' file at present and some targets haven't been built yet (e.g. 'fst')
