Added C++ wrappers for some of the newer .h files

examples/softPwm.c

@@ -16,6 +16,7 @@ int values [NUM_LEDS] = { 0, 17, 32, 50, 67, 85, 100, 85, 67, 50, 32, 17 } ;
 int main ()
 {
   int i, j ;
+  char buf [80] ;
 
   if (wiringPiSetup () == -1)
   {
@@ -29,6 +30,30 @@ int main ()
     printf ("%3d, %3d, %3d\n", i, ledMap [i], values [i]) ;
   }
 
+  fgets (buf, 80, stdin) ;
+
+// Bring all up one by one:
+
+  for (i = 0 ; i < NUM_LEDS ; ++i)
+    for (j = 0 ; j <= 100 ; ++j)
+    {
+      softPwmWrite (ledMap [i], j) ;
+      delay (10) ;
+    }
+
+  fgets (buf, 80, stdin) ;
+
+// Down fast
+
+  for (i = 100 ; i > 0 ; --i)
+  {
+    for (j = 0 ; j < NUM_LEDS ; ++j)
+      softPwmWrite (ledMap [j], i) ;
+    delay (10) ;
+  }
+
+  fgets (buf, 80, stdin) ;
+
   for (;;)
   {
     for (i = 0 ; i < NUM_LEDS ; ++i)

wiringPi/lcd.h

@@ -33,5 +33,13 @@ extern void lcdPutchar  (int fd, uint8_t data) ;
 extern void lcdPuts     (int fd, char *string) ;
 extern void lcdPrintf   (int fd, char *message, ...) ;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern int  lcdInit (int rows, int cols, int bits, int rs, int strb,
 	int d0, int d1, int d2, int d3, int d4, int d5, int d6, int d7) ;
+
+#ifdef __cplusplus
+}
+#endif

wiringPi/piNes.h

@@ -33,5 +33,13 @@
 #define	NES_B		0x40
 #define	NES_A		0x80
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern int          setupNesJoystick (int dPin, int cPin, int lPin) ;
 extern unsigned int  readNesJoystick (int joystick) ;
+
+#ifdef __cplusplus
+}
+#endif

wiringPi/softPwm.h

@@ -22,5 +22,13 @@
  ***********************************************************************
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern int  softPwmCreate (int pin, int value, int range) ;
 extern void softPwmWrite  (int pin, int value) ;
+
+#ifdef __cplusplus
+}
+#endif