extern string output_backend_global;
extern string output_name_global;
extern bool be_safe_global;
extern string output_backend_global;
extern string output_name_global;
extern bool be_safe_global;
extern bool is_pango_format_global;
extern bool is_TeX_format_global;
extern bool point_and_click_global;
extern bool is_pango_format_global;
extern bool is_TeX_format_global;
extern bool point_and_click_global;