Adhoc fix compile error of usb_usb

common/debug.c

@@ -0,0 +1,12 @@
+#include <stdbool.h>
+#include "debug.h"
+
+
+//debug_config_t debug_config = { .enable = false, .matrix = false };
+debug_config_t debug_config = {
+    .enable = false,
+    .matrix = false,
+    .keyboard = false,
+    .mouse = false,
+};
+

common/debug_config.h

@@ -36,7 +36,7 @@ typedef union {
         uint8_t reserved:4;
     };
 } debug_config_t;
-debug_config_t debug_config;
+extern debug_config_t debug_config;
 
 /* for backward compatibility */
 #define debug_enable    (debug_config.enable)

common/host.h

@@ -32,8 +32,8 @@ extern "C" {
 extern bool keyboard_nkro;
 #endif
 
-uint8_t keyboard_idle;
-uint8_t keyboard_protocol;
+extern uint8_t keyboard_idle;
+extern uint8_t keyboard_protocol;
 
 
 /* host driver */

common/print.h

@@ -34,10 +34,7 @@
 
 // this macro allows you to write print("some text") and
 // the string is automatically placed into flash memory :)
-// TODO: avoid collision with arduino/Print.h
-#ifndef __cplusplus
 #define print(s)                print_P(PSTR(s))
-#endif
 #define println(s)              print_P(PSTR(s "\n"))
 
 /* for old name */

common/xprintf.h

@@ -8,6 +8,10 @@
 #include <inttypes.h>
 #include <avr/pgmspace.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern void (*xfunc_out)(uint8_t);
 #define xdev_out(func) xfunc_out = (void(*)(uint8_t))(func)
 
@@ -99,5 +103,9 @@ char xatoi(char **str, long *ret);
     Pointer to return value
 */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif