The default search order is designed to be most-specific to least-specific for common use cases. Projects may override the order by simply calling the command multiple times and using the NO_* options:

|FIND_XXX| (|FIND_ARGS_XXX| PATHS paths... NO_DEFAULT_PATH)
|FIND_XXX| (|FIND_ARGS_XXX|)

Once one of the calls succeeds the result variable will be set and stored in the cache so that no call will search again.