diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/CPP/Common/MyGuidDef.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/Common/MyGuidDef.h	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,54 @@
+// Common/MyGuidDef.h
+
+#ifndef GUID_DEFINED
+#define GUID_DEFINED
+
+#include "Types.h"
+
+typedef struct {
+  UInt32 Data1;
+  UInt16 Data2;
+  UInt16 Data3;
+  unsigned char Data4[8];
+} GUID;
+
+#ifdef __cplusplus
+#define REFGUID const GUID &
+#else
+#define REFGUID const GUID *
+#endif
+
+#define REFCLSID REFGUID
+#define REFIID REFGUID
+
+#ifdef __cplusplus
+inline int operator==(REFGUID g1, REFGUID g2)
+{ 
+  for (int i = 0; i < (int)sizeof(g1); i++)
+    if (((unsigned char *)&g1)[i] != ((unsigned char *)&g2)[i])
+      return 0;
+  return 1;
+}
+inline int operator!=(REFGUID g1, REFGUID g2) { return !(g1 == g2); }
+#endif
+
+#ifdef __cplusplus
+  #define MY_EXTERN_C extern "C"
+#else
+  #define MY_EXTERN_C extern
+#endif
+
+#endif // GUID_DEFINED
+
+
+#ifdef DEFINE_GUID
+#undef DEFINE_GUID
+#endif
+
+#ifdef INITGUID
+  #define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
+    MY_EXTERN_C const GUID name = { l, w1, w2, { b1, b2,  b3,  b4,  b5,  b6,  b7,  b8 } }
+#else
+  #define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
+    MY_EXTERN_C const GUID name
+#endif