#include "lily-guile.hh"
/* options */
-extern bool do_midi_debugging_global;
-extern int testing_level_global;
extern bool lily_1_8_relative;
extern bool lily_1_8_compatibility_used;
SCM ly_set_option (SCM, SCM);
bool get_program_option (const char *);
+string get_output_backend_name ();
#endif /* SCM_OPTION_HH */