+#include "std-vector.hh"
+#include "std-string.hh"
+
+void debug_init ();
+void set_debug (bool);
+void do_scores ();
+void clear_scores ();
+void add_score (Score *s);
+void set_default_output (string s);
+string find_file (string);
+void call_constructors ();
+vector<string> get_inclusion_names ();
+void set_inclusion_names (vector<string>);
+
+extern string init_name_global;
+
+/* options */
+extern vector<string> dump_header_fieldnames_global;
+extern string output_backend_global;
+extern string output_name_global;
+extern bool be_safe_global;
+extern bool be_verbose_global;
+extern bool do_internal_type_checking_global;
+extern bool is_pango_format_global;
+extern bool is_TeX_format_global;
+extern bool point_and_click_global;
+extern string prefix_directory;
+extern bool use_object_keys;
+extern bool strict_infinity_checking;
+/*
+ todo: collect in Output_option struct?
+*/
+extern string output_format_global;
+
+extern bool make_preview;
+extern bool make_print;
+
+/* misc */
+extern vector<string> failed_files;
+extern int exit_status_global;
+extern File_path global_path;
+extern const char *LILYPOND_DATADIR;
+
+
+/*
+ Debugging options: switch on