1 files changed, 14 insertions, 5 deletions

diff --git a/common/debug.h b/common/debug.h
index 230d3b349..9cc8d882f 100644
--- a/common/debug.h
+++ b/common/debug.h
@@ -18,19 +18,28 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifndef DEBUG_H
 #define DEBUG_H 1
 
+#include <stdbool.h>
 #include "print.h"
 
 
-#define debug(s)             if(debug_enable) print(s)
+#define debug(s)             if(debug_enable) print_P(PSTR(s))
 #define debug_hex(c)         if(debug_enable) phex(c)
 #define debug_hex16(i)       if(debug_enable) phex16(i)
 #define debug_bin(c)         if(debug_enable) pbin(c)
 #define debug_bin_reverse(c) if(debug_enable) pbin_reverse(c)
 
 
-bool debug_enable;
-bool debug_matrix;
-bool debug_keyboard;
-bool debug_mouse;
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern bool debug_enable;
+extern bool debug_matrix;
+extern bool debug_keyboard;
+extern bool debug_mouse;
+
+#ifdef __cplusplus
+}
+#endif
 
 #endif