diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/CPP/Windows/Error.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/Windows/Error.cpp	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,50 @@
+// Windows/Error.h
+
+#include "StdAfx.h"
+
+#include "Windows/Error.h"
+#ifndef _UNICODE
+#include "Common/StringConvert.h"
+#endif
+
+#ifndef _UNICODE
+extern bool g_IsNT;
+#endif
+
+namespace NWindows {
+namespace NError {
+
+bool MyFormatMessage(DWORD messageID, CSysString &message)
+{
+  LPVOID msgBuf;
+  if(::FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | 
+      FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+      NULL,messageID, 0, (LPTSTR) &msgBuf,0, NULL) == 0)
+    return false;
+  message = (LPCTSTR)msgBuf;
+  ::LocalFree(msgBuf);
+  return true;
+}
+
+#ifndef _UNICODE
+bool MyFormatMessage(DWORD messageID, UString &message)
+{
+  if (g_IsNT)
+  {
+    LPVOID msgBuf;
+    if(::FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | 
+        FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+        NULL, messageID, 0, (LPWSTR) &msgBuf, 0, NULL) == 0)
+      return false;
+    message = (LPCWSTR)msgBuf;
+    ::LocalFree(msgBuf);
+    return true;
+  }
+  CSysString messageSys;
+  bool result = MyFormatMessage(messageID, messageSys);
+  message = GetUnicodeString(messageSys);
+  return result;
+}
+#endif
+
+}}