+--- altos-1.9.7.orig/src/lpc/lpc.h
++++ altos-1.9.7/src/lpc/lpc.h
+@@ -868,7 +868,7 @@ struct lpc_usb {
+ vuint32_t introuting;
+ uint32_t r30;
+ vuint32_t eptoggle;
+-} lpc_usb;
++};
+
+ extern struct lpc_usb lpc_usb;
+ #define lpc_usb (*(struct lpc_usb *) 0x40080000)
+--- altos-1.9.7.orig/src/micropeak-v2.0/ao_micro.c
++++ altos-1.9.7/src/micropeak-v2.0/ao_micro.c
+@@ -23,7 +23,6 @@
+ #include <ao_report_micro.h>
+ #include <ao_log_micro.h>
+
+-uint32_t pa;
+ alt_t ground_alt, max_alt;
+ alt_t ao_max_height;
+