extern int current_column;
extern char* current_filename;
extern char* current_filename_short;
extern int current_column;
extern char* current_filename;
extern char* current_filename_short;
char* concat_paths(const char*base, const char*add);
char* normalize_path(const char*path);
char* concat_paths(const char*base, const char*add);
char* normalize_path(const char*path);