-void main_loop(char *script_cmds_file, char* script_cmd, bool usb_present, serial_port* sp) {
+void
+#ifdef __has_attribute
+#if __has_attribute(force_align_arg_pointer)
+__attribute__((force_align_arg_pointer))
+#endif
+#endif
+main_loop(char *script_cmds_file, char *script_cmd, bool usb_present) {