diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/CPP/Windows/FileName.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/Windows/FileName.cpp	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,54 @@
+// Windows/FileName.cpp
+
+#include "StdAfx.h"
+
+#include "Windows/FileName.h"
+#include "Common/Wildcard.h"
+
+namespace NWindows {
+namespace NFile {
+namespace NName {
+
+void NormalizeDirPathPrefix(CSysString &dirPath)
+{
+  if (dirPath.IsEmpty())
+    return;
+  if (dirPath.ReverseFind(kDirDelimiter) != dirPath.Length() - 1)
+    dirPath += kDirDelimiter;
+}
+
+#ifndef _UNICODE
+void NormalizeDirPathPrefix(UString &dirPath)
+{
+  if (dirPath.IsEmpty())
+    return;
+  if (dirPath.ReverseFind(wchar_t(kDirDelimiter)) != dirPath.Length() - 1)
+    dirPath += wchar_t(kDirDelimiter);
+}
+#endif
+
+#ifdef _WIN32
+
+const wchar_t kExtensionDelimiter = L'.';
+
+void SplitNameToPureNameAndExtension(const UString &fullName, 
+    UString &pureName, UString &extensionDelimiter, UString &extension)
+{
+  int index = fullName.ReverseFind(kExtensionDelimiter);
+  if (index < 0)
+  {
+    pureName = fullName;
+    extensionDelimiter.Empty();
+    extension.Empty();
+  }
+  else
+  {
+    pureName = fullName.Left(index);
+    extensionDelimiter = kExtensionDelimiter;
+    extension = fullName.Mid(index + 1);
+  }
+}
+
+#endif
+
+}}}