diff --git a/wiringPi/wiringPi.c b/wiringPi/wiringPi.c
index c083e80..ae98547 100644
--- a/wiringPi/wiringPi.c
+++ b/wiringPi/wiringPi.c
@@ -544,36 +544,6 @@ static int physToGpioR2 [64] =
   -1, -1,
 } ;
 
-const int _5v=-1;
-const int _0v=-1;
-const int _3v=-1;
-
-
-static int physToSysGPIOPi5 [41] =
-{
-   -1,		// 0
-  _3v, _5v,	// 1, 2
-  401, _5v,
-  402, _0v,
-  403, 413,
-  _0v, 414,
-  416, 417,
-  426, _0v,
-  421, 422,
-  _3v, 423,
-  409, _0v,
-  408, 424,
-  410, 407,
-  _0v, 406,
-  399, 400,
-  404, _0v,
-  405, 411,
-  412, _0v,
-  418, 415,
-  425, 419,
-  _0v, 420, //39, 40
-} ;
-
 
 int piBoard() {
   if (RaspberryPiModel<0) { //need to detect pi model
diff --git a/wiringPi/wiringPi.h b/wiringPi/wiringPi.h
index 81c4001..195ac36 100644
--- a/wiringPi/wiringPi.h
+++ b/wiringPi/wiringPi.h
@@ -207,8 +207,6 @@ extern int wiringPiFailure (int fatal, const char *message, ...) ;
 extern struct wiringPiNodeStruct *wiringPiFindNode (int pin) ;
 extern struct wiringPiNodeStruct *wiringPiNewNode  (int pinBase, int numPins) ;
 
-extern int GPIOToSysFS(const int pin) ;
-
 extern void wiringPiVersion	(int *major, int *minor) ;
 extern int  wiringPiGlobalMemoryAccess(void);         //Interface 3.3
 extern int  wiringPiUserLevelAccess (void) ;