1 files changed, 13 insertions, 0 deletions
diff --git a/lib/Support/Windows/Windows.h b/lib/Support/Windows/Windows.h
index 4cdac788a0..1236fe5652 100644
--- a/lib/Support/Windows/Windows.h
+++ b/lib/Support/Windows/Windows.h
@@ -24,13 +24,17 @@
 #define _WIN32_IE    0x0600 // MinGW at it again.
 #define WIN32_LEAN_AND_MEAN
 
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringRef.h"
 #include "llvm/Config/config.h" // Get build system configuration settings
 #include "llvm/Support/Compiler.h"
+#include "llvm/Support/system_error.h"
 #include <windows.h>
 #include <wincrypt.h>
 #include <shlobj.h>
 #include <cassert>
 #include <string>
+#include <vector>
 
 inline bool MakeErrMsg(std::string* ErrMsg, const std::string& prefix) {
   if (!ErrMsg)
@@ -148,4 +152,13 @@ c_str(SmallVectorImpl<T> &str) {
   str.pop_back();
   return str.data();
 }
+
+namespace sys {
+namespace windows {
+error_code UTF8ToUTF16(StringRef utf8,
+                       SmallVectorImpl<wchar_t> &utf16);
+error_code UTF16ToUTF8(const wchar_t *utf16, size_t utf16_len,
+                       SmallVectorImpl<char> &utf8);
+} // end namespace windows
+} // end namespace sys
 } // end namespace llvm.