Some more build fixing for Win32

src/core/audioapi.cpp

@@ -3,6 +3,8 @@
 #include "library/minmax.hpp"
 #include <cstring>
 #include <iostream>
+#include <unistd.h>
+#include <sys/time.h>
 #ifdef NATIVE_THREADS
 #include <thread>
 #include <condition_variable>

src/core/inthread.cpp

@@ -16,6 +16,10 @@
 #include <iostream>
 #include <fstream>
 #include <cstring>
+#include <unistd.h>
+#include <sys/time.h>
+//Fsck it.
+#define OPUS_BUILD
 #include "opus/opus.h"
 #include "opus/opus_defines.h"