Adafruit DHT22 Library + Arduino Due not compiling?

i recently purchased a DHT22's and tried to get it to work using Adafruit's DHT library on Github. When i compile it with a Arduino DUE, it gives me the following error:

C:\Users\Moz\Documents\Arduino\libraries\DHT-sensor-library-master\DHT.cpp: In constructor 'DHT::DHT(uint8_t, uint8_t, uint8_t)':
C:\Users\Moz\Documents\Arduino\libraries\DHT-sensor-library-master\DHT.cpp:14:9: error: invalid conversion from 'Pio*' to 'uint8_t {aka unsigned char}' [-fpermissive]
   _port = digitalPinToPort(pin);
         ^
Error compiling.

It compiles on a Arduino Uno but not on the DUE.

What is the reason for this?

Edit: Below is the example code i use

#include "DHT.h"

#define DHTPIN 2     // what pin we're connected to

#define DHTTYPE DHT22   // DHT 22  (AM2302)

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  Serial.println("DHTxx test!");
  dht.begin();
}

void loop() {

  delay(2000);
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  float f = dht.readTemperature(true);

  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // Compute heat index in Fahrenheit (the default)
  float hif = dht.computeHeatIndex(f, h);
  // Compute heat index in Celsius (isFahreheit = false)
  float hic = dht.computeHeatIndex(t, h, false);

  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.print(" *C ");
  Serial.print(f);
  Serial.print(" *F\t");
  Serial.print("Heat index: ");
  Serial.print(hic);
  Serial.print(" *C ");
  Serial.print(hif);
  Serial.println(" *F");
}