OK, and these two as well... whoops.

src/serial.c

@@ -3,6 +3,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <wchar.h>
+#include "86box.h"
 #include "ibm.h"
 #include "io.h"
 #include "pic.h"

src/sound/munt/SampleRateConverter_dummy.cpp

@@ -16,7 +16,7 @@
 
 #include <stdint.h>
 #include <stdio.h>
-#include "../plat.h"
+#include "../../plat.h"
 #include "SampleRateConverter.h"
 
 #include "Synth.h"