servotimer2 problems

This is what ServoTimer2.cpp looks like now:

/* ServoTimer2.cpp*/
extern "C" {
  // AVR LibC Includes
  #include <Arduino.h>
  
}
#include <wiring.h>
#include "ServoTimer2.h"
static void initISR();
static void writeChan(uint8_t chan, int pulsewidth);
...