+int sql_single_int(const char *stmt);
+
+#define SQL_PREPARE(ss,stmt) ((ss)= sql_prepare((stmt),#ss))
+sqlite3_stmt *sql_prepare(const char *stmt, const char *what);
+
+#define SQL_BIND(ss,index,value) (sql_bind((ss),(index),(value),#ss,#value))
+void sql_bind(sqlite3_stmt *ss, int index, int value,
+ const char *ss_what, const char *val_what);
+
+#define MAX_ROUTELEN 20