Added additional includes for better cross-platform compilation support.

src/PRDevice.cpp

@@ -29,6 +29,9 @@
  */
 
 #include "PRDevice.h"
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
 PRDevice::PRDevice(PRMachineType machineType) : machineType(machineType)
 {

src/pinproc.cpp

@@ -31,6 +31,9 @@
 #include "../include/pinproc.h"
 #include "PRDevice.h"
 #include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 #define MAX_TEXT (1024)